/* =====================================================
   Sleep University — Components (Duolingo-inspired)
   Bold, playful, 3D buttons, bouncy animations
   ===================================================== */

/* ---- Logo (image on navy header) ---- */
.su-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--su-white);
    flex-shrink: 0;
}

.su-logo img {
    height: 52px;
    width: auto;
    display: block;
}

/* ---- Navigation (white on navy) ---- */
.su-nav {
    display: flex;
    align-items: center;
    gap: var(--su-space-xs);
    min-width: 0;
}

.su-nav-link {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: var(--su-text-sm);
    font-weight: 700;
    padding: var(--su-space-sm) var(--su-space-md);
    border-radius: var(--su-radius-md);
    transition: all var(--su-transition-fast);
    position: relative;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.su-nav-link:hover {
    color: var(--su-white);
    background: rgba(255, 255, 255, 0.1);
}

.su-nav-cta {
    background: var(--su-teal);
    color: var(--su-white) !important;
    border-radius: var(--su-radius-pill);
    border-bottom: var(--su-depth-md) solid var(--su-teal-border);
}

.su-nav-cta:hover {
    background: var(--su-teal) !important;
    filter: brightness(1.1);
    transform: translateY(-1px);
}

.su-nav-cta:active {
    transform: translateY(1px);
    border-bottom-width: 1px;
}

.su-nav-user {
    display: flex;
    align-items: center;
    gap: var(--su-space-sm);
    color: var(--su-white);
    white-space: nowrap;
    flex-shrink: 0;
}

.su-points-display {
    background: rgba(255, 184, 0, 0.2);
    color: var(--su-amber);
    font-size: var(--su-text-xs);
    font-weight: 800;
    padding: 3px 10px;
    border-radius: var(--su-radius-pill);
}

/* ---- Streak Display ---- */
.su-streak-display {
    background: rgba(255, 107, 107, 0.2);
    color: var(--su-coral);
    font-size: var(--su-text-xs);
    font-weight: 800;
    padding: 3px 10px;
    border-radius: var(--su-radius-pill);
}

/* ---- Hearts Display (learn page) ---- */
.su-hearts {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
    margin-right: var(--su-space-md);
}

.su-heart {
    font-size: 18px;
    transition: all 0.3s var(--su-bounce);
}

.su-heart.lost {
    opacity: 0.2;
    transform: scale(0.8);
    filter: grayscale(1);
}

.su-heart.breaking {
    animation: heartBreak 0.5s ease forwards;
}

@keyframes heartBreak {
    0% { transform: scale(1); opacity: 1; }
    30% { transform: scale(1.3); color: var(--su-coral); }
    100% { transform: scale(0.8); opacity: 0.2; filter: grayscale(1); }
}

/* ---- Sound Toggle ---- */
.su-sound-toggle {
    width: 32px;
    height: 32px;
    border-radius: var(--su-radius-full);
    border: 2px solid var(--su-grey-200);
    background: var(--su-white);
    color: var(--su-grey-400);
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--su-transition-fast);
}

.su-sound-toggle:hover { border-color: var(--su-teal); color: var(--su-teal); }
.su-sound-toggle.active { border-color: var(--su-teal); color: var(--su-teal); background: var(--su-teal-light); }

/* ---- Streak Celebration (milestone popup) ---- */
.su-streak-milestone {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    background: var(--su-white);
    border-radius: var(--su-radius-2xl);
    padding: var(--su-space-2xl);
    text-align: center;
    z-index: 250;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: streakPop 0.5s var(--su-bounce) 0.1s forwards;
}

@keyframes streakPop {
    0% { transform: translate(-50%, -50%) scale(0); }
    100% { transform: translate(-50%, -50%) scale(1); }
}

.su-streak-milestone-fire { font-size: 48px; margin-bottom: var(--su-space-md); }
.su-streak-milestone-title { font-size: var(--su-text-2xl); font-weight: 900; color: var(--su-navy); }
.su-streak-milestone-sub { font-size: var(--su-text-sm); color: var(--su-grey-500); margin-top: var(--su-space-xs); }

.su-badge-count {
    background: var(--su-coral);
    color: var(--su-white);
    font-size: var(--su-text-xs);
    font-weight: 800;
    min-width: 20px;
    height: 20px;
    padding: 0 5px;
    border-radius: var(--su-radius-full);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: 4px;
}

.su-back-link {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    font-size: var(--su-text-xs);
    font-weight: 600;
    transition: color var(--su-transition-fast);
    white-space: nowrap;
    flex-shrink: 0;
}

.su-back-link:hover { color: var(--su-teal); }

/* ---- Breadcrumb ---- */
.su-breadcrumb {
    background: var(--su-grey-50);
    padding: var(--su-space-sm) 0;
    font-size: var(--su-text-xs);
    font-weight: 600;
    color: var(--su-grey-500);
}

.su-breadcrumb a {
    color: var(--su-teal-dark);
    text-decoration: none;
}

.su-breadcrumb a:hover { text-decoration: underline; }

.su-breadcrumb span[aria-hidden] {
    margin: 0 var(--su-space-xs);
    color: var(--su-grey-300);
}

.su-breadcrumb-hero {
    background: none;
    padding: 0;
    margin-bottom: var(--su-space-sm);
    color: rgba(255, 255, 255, 0.5);
}
.su-breadcrumb-hero a {
    color: rgba(255, 255, 255, 0.7);
}
.su-breadcrumb-hero a:hover {
    color: var(--su-white);
}
.su-breadcrumb-hero span[aria-hidden] {
    color: rgba(255, 255, 255, 0.35);
}

/* ---- Hamburger (white bars on navy) ---- */
.su-hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--su-space-sm);
    flex-direction: column;
    gap: 5px;
}

.su-hamburger span {
    display: block;
    width: 24px;
    height: 3px;
    background: var(--su-white);
    border-radius: 2px;
    transition: all 0.3s var(--su-bounce);
}

/* ---- Buttons (Duolingo 3D style) ---- */
.su-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--su-space-sm);
    padding: 12px 28px;
    font-family: var(--su-font);
    font-size: var(--su-text-base);
    font-weight: 700;
    border: none;
    border-radius: var(--su-radius-pill);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--su-transition-fast);
    line-height: 1.4;
    text-transform: none;
    letter-spacing: 0;
    position: relative;
}

.su-btn:active {
    transform: translateY(2px);
}

.su-btn-primary {
    background: var(--su-teal);
    color: var(--su-white);
    border-bottom: var(--su-depth-lg) solid var(--su-teal-border);
}

.su-btn-primary:hover {
    background: var(--su-teal);
    filter: brightness(1.05);
    transform: translateY(-1px);
}

.su-btn-primary:active {
    transform: translateY(2px);
    border-bottom-width: 1px;
}

.su-btn-secondary {
    background: var(--su-grey-100);
    color: var(--su-grey-700);
    border-bottom: var(--su-depth-md) solid var(--su-grey-200);
}

.su-btn-secondary:hover {
    background: var(--su-grey-200);
    transform: translateY(-1px);
}

.su-btn-secondary:active {
    transform: translateY(2px);
    border-bottom-width: 1px;
}

.su-btn-success {
    background: var(--su-green);
    color: var(--su-white);
    border-bottom: var(--su-depth-lg) solid var(--su-green-border);
}

.su-btn-success:hover {
    filter: brightness(1.05);
    transform: translateY(-1px);
}

.su-btn-danger {
    background: var(--su-coral);
    color: var(--su-white);
    border-bottom: var(--su-depth-lg) solid var(--su-coral-dark);
}

.su-btn-navy {
    background: var(--su-navy);
    color: var(--su-white);
    border-bottom: var(--su-depth-lg) solid rgba(0,0,0,0.3);
}

.su-btn-lg {
    padding: 16px 40px;
    font-size: var(--su-text-lg);
}

.su-btn-block { width: 100%; }

/* ---- Cards (coloured bottom border for depth) ---- */
.su-card {
    background: var(--su-white);
    border-radius: var(--su-radius-lg);
    border: 2px solid var(--su-grey-100);
    border-bottom-width: var(--su-depth-lg);
    border-bottom-color: var(--su-grey-200);
    overflow: hidden;
    transition: all 0.2s var(--su-bounce);
}

.su-card:hover {
    border-color: var(--su-grey-200);
    transform: translateY(-2px);
}

.su-card-image {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    display: block;
}

.su-card-body {
    padding: var(--su-space-lg);
}

.su-card-title {
    font-size: var(--su-text-lg);
    font-weight: 800;
    color: var(--su-grey-900);
    margin-bottom: var(--su-space-sm);
    line-height: var(--su-leading-tight);
}

.su-card-meta {
    display: flex;
    align-items: center;
    gap: var(--su-space-md);
    font-size: var(--su-text-sm);
    color: var(--su-grey-500);
    font-weight: 600;
}

/* Category-coloured card accents */
.su-card-accent-teal { border-left: 4px solid var(--su-teal); }
.su-card-accent-coral { border-left: 4px solid var(--su-coral); }
.su-card-accent-amber { border-left: 4px solid var(--su-amber); }
.su-card-accent-green { border-left: 4px solid var(--su-green); }
.su-card-accent-purple { border-left: 4px solid var(--su-purple); }

/* ---- Difficulty Badges (bold, pill-shaped) ---- */
.su-difficulty {
    display: inline-flex;
    align-items: center;
    padding: 4px 14px;
    border-radius: var(--su-radius-pill);
    font-size: var(--su-text-xs);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.su-difficulty-beginner { background: var(--su-green); color: var(--su-white); }
.su-difficulty-intermediate { background: var(--su-amber); color: var(--su-white); }
.su-difficulty-advanced { background: var(--su-coral); color: var(--su-white); }

/* ---- Progress Ring ---- */
.su-progress-ring {
    position: relative;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.su-progress-ring svg {
    transform: rotate(-90deg);
    width: 64px;
    height: 64px;
}

.su-progress-ring-bg {
    fill: none;
    stroke: var(--su-grey-100);
    stroke-width: 5;
}

.su-progress-ring-fill {
    fill: none;
    stroke: var(--su-teal);
    stroke-width: 5;
    stroke-linecap: round;
    transition: stroke-dashoffset 0.6s var(--su-spring);
}

.su-progress-ring-text {
    position: absolute;
    font-size: var(--su-text-sm);
    font-weight: 800;
    color: var(--su-navy);
}

/* ---- Progress Bar ---- */
.su-progress-bar {
    width: 100%;
    height: 12px;
    background: var(--su-grey-100);
    border-radius: var(--su-radius-pill);
    overflow: hidden;
}

.su-progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--su-teal), var(--su-green));
    border-radius: var(--su-radius-pill);
    transition: width 0.5s var(--su-spring);
}

/* ---- Sidebar (Learn View) ---- */
.su-sidebar-module {
    border-bottom: 2px solid var(--su-grey-50);
    padding: var(--su-space-sm) 0;
}

.su-sidebar-module-title {
    font-size: var(--su-text-xs);
    font-weight: 800;
    color: var(--su-grey-500);
    padding: var(--su-space-md) var(--su-space-md);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.su-sidebar-step {
    display: flex;
    align-items: center;
    gap: var(--su-space-sm);
    padding: 10px var(--su-space-md) 10px var(--su-space-lg);
    font-size: var(--su-text-sm);
    font-weight: 600;
    color: var(--su-grey-600);
    text-decoration: none;
    transition: all var(--su-transition-fast);
    cursor: pointer;
    border-left: 3px solid transparent;
    border-radius: 0 var(--su-radius-sm) var(--su-radius-sm) 0;
    margin: 0 var(--su-space-sm) 0 0;
}

.su-sidebar-step:hover { background: var(--su-grey-50); }

.su-sidebar-step.active {
    background: var(--su-teal-light);
    color: var(--su-navy);
    font-weight: 700;
    border-left-color: var(--su-teal);
}

.su-sidebar-step.completed { color: var(--su-grey-500); }
.su-sidebar-step.locked { color: var(--su-grey-300); cursor: default; }

/* Step indicator circles (replacing emoji) */
.su-step-icon {
    width: 24px;
    height: 24px;
    border-radius: var(--su-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: var(--su-text-xs);
    font-weight: 800;
    border: 2px solid;
}

.su-step-icon-check {
    background: var(--su-green);
    border-color: var(--su-green-dark);
    color: var(--su-white);
    animation: checkBounce 0.5s var(--su-bounce);
}

.su-step-icon-current {
    background: var(--su-white);
    border-color: var(--su-teal);
    color: var(--su-teal);
    animation: pulse 2s infinite;
    box-shadow: 0 0 0 4px var(--su-teal-light);
}

.su-step-icon-lock {
    background: var(--su-grey-100);
    border-color: var(--su-grey-200);
    color: var(--su-grey-400);
}

@keyframes checkBounce {
    0% { transform: scale(0); }
    50% { transform: scale(1.3); }
    70% { transform: scale(0.9); }
    100% { transform: scale(1); }
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 4px var(--su-teal-light); }
    50% { box-shadow: 0 0 0 8px rgba(0, 184, 212, 0.1); }
}

/* ---- Quiz Components (Duolingo-style) ---- */
.su-quiz-container {
    max-width: 780px;
    margin: 0 auto;
    padding: var(--su-space-xl) var(--su-space-2xl);
    background: var(--su-teal-light);
    border-radius: var(--su-radius-xl);
    border: 2px solid rgba(0, 184, 212, 0.15);
}

.su-quiz-question {
    font-size: var(--su-text-2xl);
    font-weight: 800;
    color: var(--su-navy);
    margin-bottom: var(--su-space-xl);
    line-height: var(--su-leading-tight);
    text-align: center;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 2-column answer grid on desktop for MCQ/TF */
.su-quiz-options-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--su-space-sm);
}

.su-quiz-options-grid .su-quiz-option {
    margin-bottom: 0;
}

@media (max-width: 600px) {
    .su-quiz-options-grid {
        grid-template-columns: 1fr;
    }
}

.su-quiz-progress {
    font-size: var(--su-text-sm);
    font-weight: 600;
    color: var(--su-grey-500);
    margin-bottom: var(--su-space-sm);
    text-align: center;
}

.su-quiz-container .su-progress-bar {
    margin-bottom: var(--su-space-lg);
}

.su-quiz-option {
    display: block;
    width: 100%;
    padding: 16px 24px;
    margin-bottom: var(--su-space-sm);
    background: var(--su-white);
    border: 2px solid var(--su-grey-200);
    border-bottom-width: var(--su-depth-lg);
    border-bottom-color: var(--su-grey-300);
    border-radius: var(--su-radius-lg);
    font-family: var(--su-font);
    font-size: var(--su-text-lg);
    font-weight: 700;
    color: var(--su-grey-800);
    cursor: pointer;
    transition: all 0.15s var(--su-bounce);
    text-align: left;
}

.su-quiz-option:hover {
    border-color: var(--su-teal);
    background: var(--su-white);
    transform: scale(1.02);
}

.su-quiz-option:active {
    transform: scale(0.98) translateY(2px);
    border-bottom-width: 1px;
}

.su-quiz-option.selected {
    border-color: var(--su-teal);
    background: var(--su-teal-light);
}

.su-quiz-option.correct {
    border-color: var(--su-green);
    background: var(--su-green-light);
    color: var(--su-green-dark);
    animation: correctBounce 0.6s var(--su-bounce);
}

.su-quiz-option.incorrect {
    border-color: var(--su-coral);
    background: var(--su-coral-light);
    color: var(--su-coral-dark);
    animation: incorrectShake 0.5s ease;
}

.su-quiz-option.disabled {
    pointer-events: none;
    opacity: 0.6;
}

@keyframes correctBounce {
    0% { transform: scale(1); }
    30% { transform: scale(1.08); }
    60% { transform: scale(0.96); }
    100% { transform: scale(1); }
}

@keyframes incorrectShake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-8px); }
    40% { transform: translateX(8px); }
    60% { transform: translateX(-6px); }
    80% { transform: translateX(4px); }
}

.su-quiz-explanation {
    padding: var(--su-space-md) var(--su-space-lg);
    background: var(--su-white);
    border-radius: var(--su-radius-lg);
    border-left: 4px solid var(--su-teal);
    margin: var(--su-space-md) 0;
    font-size: var(--su-text-sm);
    font-weight: 600;
    color: var(--su-grey-700);
    line-height: var(--su-leading-relaxed);
}

.su-quiz-feedback {
    font-size: var(--su-text-xl);
    font-weight: 800;
    margin-top: var(--su-space-lg);
    margin-bottom: var(--su-space-sm);
    text-align: center;
}

.su-quiz-feedback.correct { color: var(--su-green); }
.su-quiz-feedback.incorrect { color: var(--su-coral); }

.su-quiz-textarea {
    width: 100%;
    min-height: 120px;
    padding: var(--su-space-md);
    border: 2px solid var(--su-grey-200);
    border-radius: var(--su-radius-lg);
    font-family: var(--su-font);
    font-size: var(--su-text-base);
    font-weight: 600;
    resize: vertical;
    transition: border-color var(--su-transition-fast);
}

.su-quiz-textarea:focus {
    outline: none;
    border-color: var(--su-teal);
    box-shadow: 0 0 0 4px var(--su-teal-light);
}

/* Quiz Summary */
.su-quiz-summary {
    text-align: center;
    padding: var(--su-space-2xl);
}

.su-quiz-score {
    font-size: var(--su-text-5xl);
    font-weight: 900;
    color: var(--su-navy);
}

.su-quiz-score-label {
    font-size: var(--su-text-sm);
    font-weight: 600;
    color: var(--su-grey-500);
    margin-top: var(--su-space-xs);
}

.su-quiz-result {
    font-size: var(--su-text-xl);
    font-weight: 800;
    margin-top: var(--su-space-lg);
}

.su-quiz-result.pass { color: var(--su-green); }
.su-quiz-result.fail { color: var(--su-coral); }

/* Quiz instruction text */
.su-quiz-instruction {
    font-size: var(--su-text-sm);
    color: var(--su-grey-600);
    margin-bottom: var(--su-space-md);
    font-weight: 600;
}

/* ---- Type 5: Drag-to-Order ---- */
.su-quiz-instruction,
.su-drag-list,
.su-fill-blank-text {
    max-width: 580px;
    margin-left: auto;
    margin-right: auto;
}

.su-drag-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    user-select: none;
    -webkit-user-select: none;
}

.su-drag-item {
    display: flex;
    align-items: center;
    gap: var(--su-space-sm);
    padding: 14px var(--su-space-md);
    background: #fff;
    border: 2px solid var(--su-grey-200);
    border-bottom-width: 4px;
    border-bottom-color: var(--su-grey-300);
    border-radius: var(--su-radius-lg);
    cursor: grab;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    transition: transform var(--su-duration-fast) var(--su-ease-bounce),
                border-color var(--su-duration-base),
                background var(--su-duration-base),
                box-shadow var(--su-duration-base);
}

.su-drag-item:hover {
    border-color: var(--su-teal);
    box-shadow: 0 4px 12px rgba(0,184,212,0.15);
    transform: translateY(-1px);
}

.su-drag-item:active,
.su-drag-item.dragging {
    cursor: grabbing;
    opacity: 0.4;
    border-style: dashed;
    border-bottom-width: 2px;
    transform: scale(0.97);
}

.su-drag-item.correct {
    border-color: var(--su-green);
    background: var(--su-success-light, #f0fdf4);
    animation: su-popIn var(--su-duration-slow) var(--su-ease-bounce);
}

.su-drag-item.incorrect {
    border-color: var(--su-coral);
    background: var(--su-danger-light, #fef2f2);
}

.su-drag-item.disabled {
    cursor: default;
    pointer-events: none;
}

.su-drag-handle {
    display: flex;
    align-items: center;
    color: var(--su-grey-300);
    cursor: grab;
    padding: 4px 2px;
    flex-shrink: 0;
    touch-action: none;
    transition: color var(--su-duration-fast);
}

.su-drag-item:hover .su-drag-handle {
    color: var(--su-teal);
}

.su-drag-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--su-teal);
    color: #fff;
    font-size: var(--su-text-xs);
    font-weight: 800;
    flex-shrink: 0;
}

.su-drag-text {
    flex: 1;
    font-weight: 600;
    color: var(--su-navy);
}

.su-drag-placeholder {
    height: 56px;
    border: 2px dashed var(--su-teal);
    border-radius: var(--su-radius-lg);
    background: var(--su-teal-light, rgba(0, 184, 212, 0.08));
    transition: all var(--su-duration-fast);
}

.su-drag-ghost {
    opacity: 0.85;
    box-shadow: var(--su-shadow-lg);
    transform: scale(1.03);
    pointer-events: none;
}

@keyframes su-popIn {
    0% { transform: scale(0.95); }
    60% { transform: scale(1.03); }
    100% { transform: scale(1); }
}

.su-drag-arrows {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-left: auto;
    flex-shrink: 0;
}

.su-drag-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 18px;
    padding: 0;
    border: none;
    background: var(--su-grey-100);
    color: var(--su-grey-500);
    border-radius: 4px;
    font-size: 9px;
    cursor: pointer;
    transition: background var(--su-duration-fast), color var(--su-duration-fast);
    line-height: 1;
}

.su-drag-arrow:hover {
    background: var(--su-teal);
    color: #fff;
}

.su-drag-arrow:active {
    transform: scale(0.9);
}

/* ---- Type 6: Image Hotspot ---- */
.su-hotspot-container {
    position: relative;
    display: inline-block;
    width: 100%;
    border-radius: var(--su-radius-xl);
    overflow: hidden;
    cursor: crosshair;
    box-shadow: var(--su-shadow-md);
    border: 2px solid var(--su-grey-200);
}

.su-hotspot-image {
    display: block;
    width: 100%;
    height: auto;
    pointer-events: none;
}

.su-hotspot-marker {
    position: absolute;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--su-teal);
    border: 3px solid #fff;
    box-shadow: 0 0 0 2px var(--su-teal), var(--su-shadow-md);
    transform: translate(-50%, -50%);
    transition: background var(--su-duration-base), border-color var(--su-duration-base);
    z-index: 2;
    animation: su-markerPulse 1.5s ease infinite;
}

.su-hotspot-marker.correct {
    background: var(--su-green);
    box-shadow: 0 0 0 2px var(--su-green), 0 0 16px rgba(88, 204, 2, 0.4);
    animation: none;
}

.su-hotspot-marker.incorrect {
    background: var(--su-coral);
    box-shadow: 0 0 0 2px var(--su-coral), 0 0 16px rgba(255, 107, 107, 0.4);
    animation: none;
}

@keyframes su-markerPulse {
    0%, 100% { box-shadow: 0 0 0 2px var(--su-teal), 0 0 0 6px rgba(0, 184, 212, 0.2); }
    50% { box-shadow: 0 0 0 2px var(--su-teal), 0 0 0 14px rgba(0, 184, 212, 0); }
}

.su-hotspot-zone {
    position: absolute;
    border-radius: 50%;
    border: 3px dashed var(--su-green);
    background: rgba(88, 204, 2, 0.15);
    transform: translate(-50%, -50%);
    z-index: 1;
    animation: su-zoneReveal var(--su-duration-slow) var(--su-ease-bounce);
}

@keyframes su-zoneReveal {
    from { transform: translate(-50%, -50%) scale(0); opacity: 0; }
    to { transform: translate(-50%, -50%) scale(1); opacity: 1; }
}

/* ---- Type 7: Fill-in-the-Blank ---- */
.su-fill-blank-text {
    font-size: var(--su-text-lg);
    line-height: 2.4;
    color: var(--su-navy);
    font-weight: 600;
    padding: var(--su-space-md) 0;
}

.su-fill-blank-input {
    display: inline-block;
    width: 140px;
    padding: 6px 12px;
    border: none;
    border-bottom: 3px solid var(--su-teal);
    background: var(--su-teal-light, rgba(0, 184, 212, 0.08));
    border-radius: var(--su-radius-sm) var(--su-radius-sm) 0 0;
    font-size: var(--su-text-base);
    font-weight: 700;
    color: var(--su-navy);
    text-align: center;
    transition: border-color var(--su-duration-base), background var(--su-duration-base);
    vertical-align: baseline;
    margin: 0 4px;
}

.su-fill-blank-input:focus {
    outline: none;
    border-bottom-color: var(--su-navy);
    background: rgba(0, 184, 212, 0.14);
}

.su-fill-blank-input.correct {
    border-bottom-color: var(--su-green);
    background: var(--su-success-light, #f0fdf4);
    color: var(--su-green);
}

.su-fill-blank-input.incorrect {
    border-bottom-color: var(--su-coral);
    background: var(--su-danger-light, #fef2f2);
    color: var(--su-coral);
    text-decoration: line-through;
}

.su-fill-blank-input.disabled {
    pointer-events: none;
}

.su-blank-correction {
    display: inline-block;
    font-size: var(--su-text-sm);
    font-weight: 800;
    color: var(--su-green);
    margin-left: 4px;
    animation: su-popIn var(--su-duration-slow) var(--su-ease-bounce);
}

/* Responsive adjustments for interactive quizzes */
@media (max-width: 480px) {
    .su-quiz-container { padding: var(--su-space-md); }
    .su-quiz-question { font-size: var(--su-text-xl); }
}

@media (max-width: 600px) {
    .su-fill-blank-input {
        width: 100px;
        font-size: var(--su-text-sm);
        padding: 4px 8px;
    }

    .su-fill-blank-text {
        font-size: var(--su-text-base);
        line-height: 2.2;
    }

    .su-drag-item {
        padding: 12px var(--su-space-sm);
    }

    .su-drag-number {
        width: 24px;
        height: 24px;
        font-size: 11px;
    }
}

/* ---- Form Inputs ---- */
.su-input {
    width: 100%;
    padding: 14px var(--su-space-md);
    border: 2px solid var(--su-grey-200);
    border-radius: var(--su-radius-lg);
    font-family: var(--su-font);
    font-size: var(--su-text-base);
    font-weight: 600;
    color: var(--su-grey-800);
    background: var(--su-grey-50);
    transition: all var(--su-transition-fast);
}

.su-input:focus {
    outline: none;
    border-color: var(--su-teal);
    background: var(--su-white);
    box-shadow: 0 0 0 4px var(--su-teal-light);
}

.su-input::placeholder { color: var(--su-grey-400); font-weight: 600; }

.su-input-group { margin-bottom: var(--su-space-lg); }

.su-label {
    display: block;
    font-size: var(--su-text-sm);
    font-weight: 700;
    color: var(--su-grey-700);
    margin-bottom: var(--su-space-xs);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

/* ---- Celebration Overlay ---- */
.su-celebration {
    position: fixed;
    inset: 0;
    background: rgba(10, 47, 66, 0.96);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 200;
    color: var(--su-white);
    text-align: center;
    animation: fadeIn 0.5s ease;
    overflow: hidden;
}

.su-confetti {
    position: absolute;
    border-radius: 3px;
    animation: confettiFall linear forwards;
}

@keyframes confettiFall {
    0% { transform: translateY(-100vh) rotate(0deg); opacity: 1; }
    100% { transform: translateY(100vh) rotate(720deg); opacity: 0; }
}

.su-celebration-title {
    font-size: var(--su-text-4xl);
    font-weight: 900;
    margin-bottom: var(--su-space-md);
    animation: popIn 0.6s var(--su-bounce);
}

.su-celebration-course {
    font-size: var(--su-text-xl);
    color: var(--su-teal);
    font-weight: 600;
    margin-bottom: var(--su-space-xl);
}

.su-celebration-stats {
    display: flex;
    gap: var(--su-space-2xl);
    margin-bottom: var(--su-space-2xl);
}

.su-celebration-stat-value {
    font-size: var(--su-text-3xl);
    font-weight: 900;
    color: var(--su-teal);
}

.su-celebration-stat-label {
    font-size: var(--su-text-sm);
    color: var(--su-grey-400);
    font-weight: 600;
}

.su-celebration-actions {
    display: flex;
    gap: var(--su-space-md);
    flex-wrap: wrap;
    justify-content: center;
}

@keyframes popIn {
    0% { transform: scale(0); opacity: 0; }
    60% { transform: scale(1.15); }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ---- Content Reader ---- */
.su-reader h2 {
    font-size: var(--su-text-3xl);
    font-weight: 800;
    color: var(--su-navy);
    margin: var(--su-space-2xl) 0 var(--su-space-lg);
    line-height: var(--su-leading-tight);
}

.su-reader h2:first-child { margin-top: 0; }

.su-reader h3 {
    font-size: var(--su-text-xl);
    font-weight: 700;
    color: var(--su-grey-800);
    margin: var(--su-space-xl) 0 var(--su-space-md);
}

.su-reader p {
    margin-bottom: var(--su-space-md);
    line-height: var(--su-leading-relaxed);
    color: var(--su-grey-700);
    font-size: var(--su-text-base);
}

.su-reader ul, .su-reader ol {
    margin: var(--su-space-md) 0;
    padding-left: var(--su-space-xl);
}

.su-reader li {
    margin-bottom: var(--su-space-sm);
    line-height: var(--su-leading-relaxed);
    color: var(--su-grey-700);
}

.su-reader strong { color: var(--su-grey-900); }

/* =====================================================
   CONTENT SHORTCODES
   ===================================================== */

/* ---- Callout Box ---- */
.su-callout {
    display: flex;
    gap: var(--su-space-md);
    padding: var(--su-space-lg);
    border-radius: var(--su-radius-lg);
    border-left: 4px solid;
    border-bottom: var(--su-depth-md) solid;
    margin: var(--su-space-xl) 0;
}

.su-callout-icon {
    font-size: 24px;
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: var(--su-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.su-callout-heading {
    font-size: var(--su-text-sm);
    font-weight: 800;
    margin-bottom: var(--su-space-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.su-callout-content { font-size: var(--su-text-sm); line-height: var(--su-leading-relaxed); }
.su-callout-content p { margin: 0; }

.su-callout-key {
    background: var(--su-teal-light);
    border-left-color: var(--su-teal);
    border-bottom-color: rgba(0, 184, 212, 0.15);
}
.su-callout-key .su-callout-heading { color: var(--su-teal-dark); }
.su-callout-key .su-callout-icon { background: rgba(0, 184, 212, 0.15); }

.su-callout-warning {
    background: var(--su-coral-light);
    border-left-color: var(--su-coral);
    border-bottom-color: rgba(255, 107, 107, 0.15);
}
.su-callout-warning .su-callout-heading { color: var(--su-coral-dark); }
.su-callout-warning .su-callout-icon { background: rgba(255, 107, 107, 0.15); }

.su-callout-tip {
    background: var(--su-green-light);
    border-left-color: var(--su-green);
    border-bottom-color: rgba(88, 204, 2, 0.15);
}
.su-callout-tip .su-callout-heading { color: var(--su-green-dark); }
.su-callout-tip .su-callout-icon { background: rgba(88, 204, 2, 0.15); }

.su-callout-did-you-know {
    background: var(--su-amber-light);
    border-left-color: var(--su-amber);
    border-bottom-color: rgba(255, 184, 0, 0.15);
}
.su-callout-did-you-know .su-callout-heading { color: var(--su-amber-dark); }
.su-callout-did-you-know .su-callout-icon { background: rgba(255, 184, 0, 0.15); }

.su-callout-science {
    background: var(--su-purple-light);
    border-left-color: var(--su-purple);
    border-bottom-color: rgba(206, 130, 255, 0.15);
}
.su-callout-science .su-callout-heading { color: var(--su-purple-dark); }
.su-callout-science .su-callout-icon { background: rgba(206, 130, 255, 0.15); }

/* ---- Expand / Reveal ---- */
.su-expand {
    margin: var(--su-space-lg) 0;
    border: 2px solid var(--su-grey-100);
    border-bottom-width: var(--su-depth-md);
    border-bottom-color: var(--su-grey-200);
    border-radius: var(--su-radius-lg);
    overflow: hidden;
}

.su-expand-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--su-space-md) var(--su-space-lg);
    background: var(--su-grey-50);
    cursor: pointer;
    font-weight: 700;
    font-size: var(--su-text-sm);
    color: var(--su-navy);
    list-style: none;
    transition: background var(--su-transition-fast);
}

.su-expand-header::-webkit-details-marker { display: none; }
.su-expand-header::marker { display: none; content: ""; }
.su-expand-header:hover { background: var(--su-grey-100); }

.su-expand-chevron {
    font-size: 12px;
    color: var(--su-grey-400);
    transition: transform 0.25s var(--su-bounce);
}

.su-expand[open] .su-expand-chevron { transform: rotate(90deg); }

.su-expand-body {
    padding: var(--su-space-lg);
    font-size: var(--su-text-sm);
    color: var(--su-grey-700);
    line-height: var(--su-leading-relaxed);
    border-top: 1px solid var(--su-grey-100);
    animation: expandIn 0.3s ease;
}

@keyframes expandIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ---- Glossary Term (inline) ---- */
.su-term {
    border-bottom: 2px dotted var(--su-teal);
    cursor: help;
    text-decoration: none;
    font-weight: 700;
    color: var(--su-navy);
    position: relative;
    transition: background var(--su-transition-fast);
}

.su-term:hover {
    background: var(--su-teal-light);
    border-radius: 2px;
}

/* ---- Stat Block ---- */
.su-stat-block {
    text-align: center;
    padding: var(--su-space-xl);
    margin: var(--su-space-xl) 0;
    background: linear-gradient(135deg, var(--su-navy) 0%, var(--su-navy) 100%);
    border-radius: var(--su-radius-xl);
    color: var(--su-white);
}

.su-stat-block-number {
    font-size: var(--su-text-4xl);
    font-weight: 900;
    color: var(--su-teal);
    line-height: 1;
    margin-bottom: var(--su-space-sm);
}

.su-stat-block-label {
    font-size: var(--su-text-base);
    color: rgba(255, 255, 255, 0.7);
    font-weight: 600;
}

/* ---- Knowledge Check (inline mini-quiz) ---- */
.su-knowledge-check {
    margin: var(--su-space-xl) 0;
    padding: var(--su-space-xl);
    background: var(--su-teal-light);
    border-radius: var(--su-radius-xl);
    border: 2px solid rgba(0, 184, 212, 0.15);
}

.su-kc-label {
    font-size: var(--su-text-xs);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--su-teal-dark);
    margin-bottom: var(--su-space-sm);
}

.su-kc-question {
    font-size: var(--su-text-lg);
    font-weight: 800;
    color: var(--su-navy);
    margin-bottom: var(--su-space-lg);
    line-height: var(--su-leading-tight);
}

.su-kc-option {
    display: block;
    width: 100%;
    padding: 14px 20px;
    margin-bottom: var(--su-space-sm);
    background: var(--su-white);
    border: 2px solid var(--su-grey-200);
    border-bottom-width: var(--su-depth-md);
    border-bottom-color: var(--su-grey-300);
    border-radius: var(--su-radius-lg);
    font-family: var(--su-font);
    font-size: var(--su-text-sm);
    font-weight: 700;
    color: var(--su-grey-800);
    cursor: pointer;
    text-align: left;
    transition: all 0.15s var(--su-bounce);
}

.su-kc-option:hover {
    border-color: var(--su-teal);
    transform: scale(1.01);
}

.su-kc-option:active {
    transform: scale(0.98) translateY(2px);
    border-bottom-width: 1px;
}

.su-kc-option.correct {
    border-color: var(--su-green);
    background: var(--su-green-light);
    color: var(--su-green-dark);
    animation: correctBounce 0.6s var(--su-bounce);
}

.su-kc-option.incorrect {
    border-color: var(--su-coral);
    background: var(--su-coral-light);
    color: var(--su-coral-dark);
    animation: incorrectShake 0.5s ease;
}

.su-kc-option.disabled { pointer-events: none; opacity: 0.6; }

.su-kc-feedback {
    margin-top: var(--su-space-md);
    padding: var(--su-space-md) var(--su-space-lg);
    border-radius: var(--su-radius-lg);
    font-size: var(--su-text-sm);
    font-weight: 600;
    line-height: var(--su-leading-relaxed);
    animation: expandIn 0.3s ease;
}

.su-kc-feedback.correct {
    background: var(--su-green-light);
    border-left: 4px solid var(--su-green);
    color: var(--su-green-dark);
}

.su-kc-feedback.incorrect {
    background: var(--su-coral-light);
    border-left: 4px solid var(--su-coral);
    color: var(--su-coral-dark);
}

/* ---- Flip Card ---- */
.su-flip-card {
    perspective: 800px;
    height: 180px;
    margin: var(--su-space-lg) 0;
    cursor: pointer;
}

.su-flip-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s var(--su-bounce);
    transform-style: preserve-3d;
}

.su-flip-card.flipped .su-flip-inner { transform: rotateY(180deg); }

.su-flip-front, .su-flip-back {
    position: absolute;
    inset: 0;
    backface-visibility: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--su-space-xl);
    border-radius: var(--su-radius-xl);
    font-weight: 700;
    text-align: center;
}

.su-flip-front {
    background: var(--su-white);
    border: 2px solid var(--su-grey-100);
    border-bottom-width: var(--su-depth-lg);
    border-bottom-color: var(--su-grey-200);
    color: var(--su-navy);
    font-size: var(--su-text-xl);
}

.su-flip-front::after {
    content: "tap to flip";
    position: absolute;
    bottom: var(--su-space-sm);
    font-size: var(--su-text-xs);
    color: var(--su-grey-400);
    font-weight: 600;
}

.su-flip-back {
    background: var(--su-navy);
    color: var(--su-white);
    font-size: var(--su-text-sm);
    line-height: var(--su-leading-relaxed);
    transform: rotateY(180deg);
}

/* ---- Fill in the Blank ---- */
.su-blank-input {
    display: inline-block;
    border: none;
    border-bottom: 3px solid var(--su-teal);
    background: var(--su-teal-light);
    padding: 4px 12px;
    font-family: var(--su-font);
    font-size: inherit;
    font-weight: 700;
    color: var(--su-navy);
    min-width: 120px;
    text-align: center;
    border-radius: var(--su-radius-sm) var(--su-radius-sm) 0 0;
    transition: all var(--su-transition-fast);
}

.su-blank-input:focus {
    outline: none;
    border-bottom-color: var(--su-navy);
    background: var(--su-white);
}

.su-blank-input.correct {
    border-bottom-color: var(--su-green);
    background: var(--su-green-light);
    color: var(--su-green-dark);
}

.su-blank-input.incorrect {
    border-bottom-color: var(--su-coral);
    background: var(--su-coral-light);
    color: var(--su-coral-dark);
}

/* ---- XP Micro-Reward Popup ---- */
.su-xp-popup {
    position: fixed;
    font-size: var(--su-text-lg);
    font-weight: 900;
    color: var(--su-teal);
    pointer-events: none;
    z-index: 300;
    animation: xpFloat 1.2s ease forwards;
    text-shadow: 0 2px 8px rgba(0, 184, 212, 0.3);
}

@keyframes xpFloat {
    0% { opacity: 1; transform: translateY(0) scale(1); }
    50% { opacity: 1; transform: translateY(-30px) scale(1.2); }
    100% { opacity: 0; transform: translateY(-60px) scale(0.8); }
}

/* ---- Sort Exercise (tap-to-order) ---- */
.su-sort-exercise {
    margin: var(--su-space-xl) 0;
    padding: var(--su-space-xl);
    background: var(--su-grey-50);
    border-radius: var(--su-radius-xl);
    border: 2px solid var(--su-grey-100);
}

.su-sort-label {
    font-size: var(--su-text-xs);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--su-amber-dark);
    margin-bottom: var(--su-space-sm);
}

.su-sort-instruction {
    font-size: var(--su-text-lg);
    font-weight: 800;
    color: var(--su-navy);
    margin-bottom: var(--su-space-lg);
}

.su-sort-bank {
    display: flex;
    flex-wrap: wrap;
    gap: var(--su-space-sm);
    min-height: 48px;
    margin-bottom: var(--su-space-lg);
    padding: var(--su-space-md);
    background: var(--su-white);
    border-radius: var(--su-radius-lg);
    border: 2px dashed var(--su-grey-200);
}

.su-sort-item {
    display: inline-flex;
    align-items: center;
    padding: 10px 20px;
    background: var(--su-white);
    border: 2px solid var(--su-grey-200);
    border-bottom-width: var(--su-depth-md);
    border-bottom-color: var(--su-grey-300);
    border-radius: var(--su-radius-pill);
    font-family: var(--su-font);
    font-size: var(--su-text-sm);
    font-weight: 700;
    color: var(--su-navy);
    cursor: pointer;
    transition: all 0.2s var(--su-bounce);
    user-select: none;
}

.su-sort-item:hover {
    border-color: var(--su-teal);
    transform: translateY(-2px);
}

.su-sort-item:active {
    transform: translateY(1px);
    border-bottom-width: 1px;
}

.su-sort-item.placed {
    opacity: 0.3;
    pointer-events: none;
    transform: scale(0.9);
}

.su-sort-slots {
    display: flex;
    flex-direction: column;
    gap: var(--su-space-sm);
}

.su-sort-slot {
    display: flex;
    align-items: center;
    gap: var(--su-space-md);
    padding: var(--su-space-sm) var(--su-space-md);
    min-height: 48px;
    background: var(--su-white);
    border: 2px dashed var(--su-grey-200);
    border-radius: var(--su-radius-lg);
    transition: all 0.2s ease;
}

.su-sort-slot-num {
    width: 28px;
    height: 28px;
    border-radius: var(--su-radius-full);
    background: var(--su-grey-100);
    color: var(--su-grey-500);
    font-size: var(--su-text-xs);
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.su-sort-slot.filled {
    border-style: solid;
    border-color: var(--su-teal);
    background: var(--su-teal-light);
    cursor: pointer;
}

.su-sort-slot.filled:hover { background: rgba(0, 184, 212, 0.15); }

.su-sort-slot.correct {
    border-color: var(--su-green);
    background: var(--su-green-light);
    animation: correctBounce 0.5s var(--su-bounce);
}

.su-sort-slot.correct .su-sort-slot-num {
    background: var(--su-green);
    color: var(--su-white);
}

.su-sort-slot.incorrect {
    border-color: var(--su-coral);
    background: var(--su-coral-light);
    animation: incorrectShake 0.5s ease;
}

.su-sort-slot .su-sort-slot-text {
    font-weight: 700;
    font-size: var(--su-text-sm);
    color: var(--su-navy);
}

.su-sort-check {
    margin-top: var(--su-space-md);
    text-align: center;
}

/* ---- Match Exercise (tap-to-connect) ---- */
.su-match-exercise {
    margin: var(--su-space-xl) 0;
    padding: var(--su-space-xl);
    background: var(--su-purple-light);
    border-radius: var(--su-radius-xl);
    border: 2px solid rgba(206, 130, 255, 0.15);
}

.su-match-label {
    font-size: var(--su-text-xs);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--su-purple-dark);
    margin-bottom: var(--su-space-sm);
}

.su-match-instruction {
    font-size: var(--su-text-lg);
    font-weight: 800;
    color: var(--su-navy);
    margin-bottom: var(--su-space-lg);
}

.su-match-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--su-space-md);
}

.su-match-col-label {
    font-size: var(--su-text-xs);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--su-grey-500);
    margin-bottom: var(--su-space-sm);
    text-align: center;
}

.su-match-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 16px;
    background: var(--su-white);
    border: 2px solid var(--su-grey-200);
    border-bottom-width: var(--su-depth-md);
    border-bottom-color: var(--su-grey-300);
    border-radius: var(--su-radius-lg);
    font-family: var(--su-font);
    font-size: var(--su-text-sm);
    font-weight: 700;
    color: var(--su-navy);
    cursor: pointer;
    text-align: center;
    transition: all 0.2s var(--su-bounce);
    margin-bottom: var(--su-space-sm);
    min-height: 48px;
}

.su-match-item:hover {
    border-color: var(--su-purple);
    transform: translateY(-1px);
}

.su-match-item.selected {
    border-color: var(--su-purple);
    background: var(--su-purple-light);
    box-shadow: 0 0 0 3px rgba(206, 130, 255, 0.2);
}

.su-match-item.matched {
    opacity: 0.5;
    pointer-events: none;
    border-style: solid;
}

.su-match-item.correct {
    opacity: 1;
    border-color: var(--su-green);
    background: var(--su-green-light);
    animation: correctBounce 0.5s var(--su-bounce);
}

.su-match-item.incorrect {
    opacity: 1;
    border-color: var(--su-coral);
    background: var(--su-coral-light);
    animation: incorrectShake 0.5s ease;
}

/* Match pair colour indicators */
.su-match-item[data-pair="0"].matched { border-left: 4px solid var(--su-teal); }
.su-match-item[data-pair="1"].matched { border-left: 4px solid var(--su-coral); }
.su-match-item[data-pair="2"].matched { border-left: 4px solid var(--su-amber); }
.su-match-item[data-pair="3"].matched { border-left: 4px solid var(--su-green); }
.su-match-item[data-pair="4"].matched { border-left: 4px solid var(--su-purple); }

.su-match-check {
    margin-top: var(--su-space-lg);
    text-align: center;
    grid-column: span 2;
}

/* ---- Compare Table ---- */
.su-compare-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: var(--su-space-xl) 0;
    border-radius: var(--su-radius-lg);
    overflow: hidden;
    border: 2px solid var(--su-grey-100);
}

.su-compare-table th {
    background: var(--su-navy);
    color: var(--su-white);
    padding: var(--su-space-md);
    font-size: var(--su-text-sm);
    font-weight: 800;
    text-align: center;
}

.su-compare-table th:first-child {
    text-align: left;
    background: var(--su-grey-800);
}

.su-compare-table td {
    padding: var(--su-space-md);
    font-size: var(--su-text-sm);
    font-weight: 600;
    color: var(--su-grey-700);
    border-bottom: 1px solid var(--su-grey-100);
    text-align: center;
    transition: background var(--su-transition-fast);
}

.su-compare-table td:first-child {
    font-weight: 700;
    color: var(--su-navy);
    text-align: left;
    background: var(--su-grey-50);
}

.su-compare-table tr:last-child td { border-bottom: none; }

.su-compare-table tr:hover td { background: var(--su-teal-light); }
.su-compare-table tr:hover td:first-child { background: rgba(0, 184, 212, 0.08); }

@media (max-width: 768px) {
    .su-match-grid { grid-template-columns: 1fr; }
    .su-match-check { grid-column: span 1; }
    .su-compare-table { font-size: var(--su-text-xs); }
    .su-compare-table th, .su-compare-table td { padding: var(--su-space-sm); }
}

/* ---- Inline XP Bar (learn page top) ---- */
.su-xp-bar {
    height: 4px;
    background: var(--su-grey-100);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 2px;
}

.su-xp-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--su-teal), var(--su-green));
    border-radius: 2px;
    transition: width 0.5s var(--su-spring);
}

/* ---- Hero Section (navy gradient) ---- */
.su-hero {
    background: linear-gradient(135deg, var(--su-navy) 0%, var(--su-navy-light) 100%);
    padding: var(--su-space-3xl) 0 var(--su-space-2xl);
    text-align: center;
    color: var(--su-white);
}

.su-hero-title {
    font-size: var(--su-text-5xl);
    font-weight: 900;
    color: var(--su-white);
    margin-bottom: var(--su-space-md);
    line-height: 1.1;
}

.su-hero-subtitle {
    font-size: var(--su-text-lg);
    color: rgba(255, 255, 255, 0.7);
    max-width: 560px;
    margin: 0 auto var(--su-space-xl);
    line-height: var(--su-leading-relaxed);
    font-weight: 600;
}

/* ---- Audience Cards (on hero dark bg) ---- */
.su-audience-cards {
    display: flex;
    justify-content: center;
    gap: var(--su-space-lg);
    margin-top: var(--su-space-2xl);
    flex-wrap: wrap;
}

.su-audience-card {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--su-radius-lg);
    padding: var(--su-space-lg) var(--su-space-xl);
    flex: 1;
    min-width: 180px;
    max-width: 240px;
    text-align: center;
    transition: all var(--su-transition-base);
    backdrop-filter: blur(4px);
}

.su-audience-card:hover {
    background: rgba(255, 255, 255, 0.16);
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.25);
}

.su-audience-card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--su-radius-full);
    background: rgba(255, 255, 255, 0.12);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: var(--su-space-sm);
}

.su-audience-card-title {
    font-weight: 700;
    color: var(--su-white);
    margin-bottom: var(--su-space-xs);
}

.su-audience-card-desc {
    font-size: var(--su-text-xs);
    color: rgba(255, 255, 255, 0.75);
}

/* ---- Page Section Header (navy banner for course/page headers) ---- */
.su-page-header {
    background: linear-gradient(135deg, var(--su-navy) 0%, var(--su-navy-light) 100%);
    color: var(--su-white);
    padding: var(--su-space-2xl) 0;
}

.su-page-header .su-container {
    padding-top: 0;
    padding-bottom: 0;
}

.su-page-header-meta {
    display: flex;
    gap: var(--su-space-md);
    align-items: center;
    margin-bottom: var(--su-space-md);
    flex-wrap: wrap;
}

.su-page-header-meta span {
    font-size: var(--su-text-sm);
    color: rgba(255, 255, 255, 0.75);
}

.su-page-header h1 {
    font-size: var(--su-text-3xl);
    font-weight: 800;
    margin-bottom: var(--su-space-md);
    line-height: var(--su-leading-tight);
}

.su-page-header-desc {
    color: rgba(255, 255, 255, 0.7);
    max-width: 700px;
    line-height: var(--su-leading-relaxed);
}

.su-page-header-actions {
    margin-top: var(--su-space-xl);
}

/* ---- Dashboard Section ---- */
.su-section-title {
    font-size: var(--su-text-2xl);
    font-weight: 700;
    color: var(--su-navy);
    margin-bottom: var(--su-space-lg);
}

.su-section-subtitle {
    font-size: var(--su-text-lg);
    font-weight: 700;
    color: var(--su-grey-600);
    margin-bottom: var(--su-space-md);
}

/* ---- Stats Row ---- */
.su-stats {
    display: flex;
    gap: var(--su-space-xl);
    text-align: center;
}

.su-stat-value {
    font-size: var(--su-text-3xl);
    font-weight: 800;
    color: var(--su-teal);
}

.su-stat-value-navy { color: var(--su-navy); }

.su-stat-label {
    font-size: var(--su-text-xs);
    color: var(--su-grey-500);
    font-weight: 600;
}

/* ---- How It Works Steps ---- */
.su-steps-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--su-space-xl);
    margin-top: var(--su-space-lg);
}

.su-step-card {
    text-align: center;
    padding: var(--su-space-xl) var(--su-space-lg);
}

.su-step-number {
    width: 48px;
    height: 48px;
    border-radius: var(--su-radius-full);
    background: var(--su-teal);
    color: var(--su-white);
    font-size: var(--su-text-xl);
    font-weight: 900;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--su-space-md);
    border-bottom: var(--su-depth-md) solid var(--su-teal-border);
}

.su-step-card-title {
    font-size: var(--su-text-lg);
    font-weight: 800;
    color: var(--su-navy);
    margin-bottom: var(--su-space-sm);
}

.su-step-card-desc {
    font-size: var(--su-text-sm);
    color: var(--su-grey-600);
    line-height: var(--su-leading-relaxed);
}

/* ---- Featured Course Card ---- */
.su-catalogue {
    background: var(--su-grey-50);
    padding: var(--su-space-3xl) 0;
}

.su-catalogue .su-grid-3 {
    justify-items: center;
}

.su-featured-card {
    display: flex;
    flex-direction: column;
    background: var(--su-white);
    border-radius: var(--su-radius-xl);
    border: 2px solid var(--su-grey-100);
    border-bottom-width: var(--su-depth-lg);
    border-bottom-color: var(--su-grey-200);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: all 0.25s var(--su-bounce);
    min-width: 320px;
    max-width: 420px;
}

.su-featured-card:hover {
    transform: translateY(-4px);
    border-color: var(--su-teal);
    box-shadow: var(--su-shadow-lg);
}

/* When there's only one card, make it wider and horizontal */
.su-featured-card:only-child {
    max-width: 640px;
    flex-direction: row;
}

.su-featured-card:only-child .su-featured-card-header {
    min-width: 200px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--su-space-2xl);
}

.su-featured-card-header {
    background: linear-gradient(135deg, var(--su-navy) 0%, var(--su-navy-light) 100%);
    padding: var(--su-space-xl) var(--su-space-lg) var(--su-space-lg);
    display: flex;
    align-items: center;
    gap: var(--su-space-sm);
}

.su-featured-card-body {
    padding: var(--su-space-xl);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.su-featured-card-title {
    font-size: var(--su-text-2xl);
    font-weight: 800;
    color: var(--su-navy);
    margin-bottom: var(--su-space-sm);
    line-height: var(--su-leading-tight);
}

.su-featured-card-desc {
    font-size: var(--su-text-sm);
    color: var(--su-grey-600);
    line-height: var(--su-leading-relaxed);
    margin-bottom: var(--su-space-md);
}

.su-featured-card-meta {
    display: flex;
    gap: var(--su-space-lg);
    flex-wrap: wrap;
    font-size: var(--su-text-sm);
    color: var(--su-grey-500);
    font-weight: 600;
    margin-bottom: var(--su-space-lg);
}

.su-featured-card-cta {
    margin-top: auto;
}

.su-featured-card-cta .su-btn {
    width: auto;
}

/* ---- Value Props Row ---- */
.su-value-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--su-space-xl);
}

.su-value-card {
    text-align: center;
    padding: var(--su-space-xl) var(--su-space-lg);
    background: var(--su-white);
    border-radius: var(--su-radius-xl);
    border: 2px solid var(--su-grey-100);
    border-bottom-width: var(--su-depth-lg);
    border-bottom-color: var(--su-grey-200);
    transition: all 0.2s var(--su-bounce);
}

.su-value-card:hover {
    transform: translateY(-2px);
    border-color: var(--su-grey-200);
}

.su-value-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--su-radius-full);
    background: var(--su-teal-light);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: var(--su-space-md);
}

.su-value-title {
    font-size: var(--su-text-lg);
    font-weight: 800;
    color: var(--su-navy);
    margin-bottom: var(--su-space-sm);
}

.su-value-desc {
    font-size: var(--su-text-sm);
    color: var(--su-grey-600);
    line-height: var(--su-leading-relaxed);
}

/* ---- Bottom CTA Banner ---- */
.su-bottom-cta {
    background: linear-gradient(135deg, var(--su-navy) 0%, var(--su-navy-light) 100%);
    padding: var(--su-space-3xl) 0;
}

.su-bottom-cta-title {
    font-size: var(--su-text-3xl);
    font-weight: 900;
    color: var(--su-white);
    margin-bottom: var(--su-space-md);
}

.su-bottom-cta-desc {
    font-size: var(--su-text-lg);
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--su-space-xl);
    font-weight: 600;
}

/* ---- Profile Header ---- */
.su-profile-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--su-space-2xl);
    flex-wrap: wrap;
    gap: var(--su-space-lg);
}

/* ---- Badge Cards ---- */
.su-badge-card {
    padding: var(--su-space-xl) var(--su-space-lg);
    text-align: center;
    transition: all 0.25s var(--su-bounce);
}

.su-badge-card:hover { transform: translateY(-3px); }

.su-badge-card.su-badge-earned {
    border-color: var(--su-teal);
    border-bottom-color: var(--su-teal-border);
    background: linear-gradient(180deg, var(--su-teal-light) 0%, var(--su-white) 40%);
}

.su-badge-card.su-badge-locked {
    opacity: 1;
    background: var(--su-grey-50);
    border-color: var(--su-grey-100);
    position: relative;
}

.su-badge-card.su-badge-locked .su-badge-card-icon {
    filter: grayscale(100%);
    opacity: 0.4;
}

.su-badge-card.su-badge-locked .su-badge-card-name,
.su-badge-card.su-badge-locked .su-badge-card-desc {
    color: var(--su-grey-400);
}

.su-badge-card-icon {
    width: 72px;
    height: 72px;
    border-radius: var(--su-radius-full);
    background: var(--su-amber-light);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    margin-bottom: var(--su-space-md);
}

.su-badge-card.su-badge-locked .su-badge-card-icon {
    background: var(--su-grey-100);
}

.su-badge-card-name {
    font-weight: 800;
    font-size: var(--su-text-base);
    color: var(--su-navy);
    margin-bottom: var(--su-space-xs);
}

.su-badge-card-desc {
    font-size: var(--su-text-xs);
    color: var(--su-grey-600);
    line-height: var(--su-leading-relaxed);
}

.su-badge-card-date {
    font-size: var(--su-text-xs);
    color: var(--su-teal);
    font-weight: 600;
    margin-top: var(--su-space-sm);
}

/* ---- Active Nav State ---- */
.su-nav-link.active {
    color: var(--su-white);
    background: rgba(255, 255, 255, 0.12);
}

/* ---- Login Split Layout ---- */
.su-login-layout {
    display: flex;
    min-height: calc(100vh - var(--su-header-height) - 100px);
}

.su-login-hero {
    flex: 1;
    background: linear-gradient(135deg, var(--su-navy) 0%, var(--su-navy-light) 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--su-space-3xl);
    color: var(--su-white);
    text-align: center;
}

.su-login-hero-icon { font-size: 72px; margin-bottom: var(--su-space-lg); }

.su-login-hero-title {
    font-size: var(--su-text-3xl);
    font-weight: 900;
    margin-bottom: var(--su-space-md);
}

.su-login-hero-features {
    list-style: none;
    padding: 0;
    margin-top: var(--su-space-xl);
    text-align: left;
}

.su-login-hero-features li {
    padding: var(--su-space-sm) 0;
    font-size: var(--su-text-base);
    font-weight: 700;
    color: rgba(255, 255, 255, 0.8);
}

.su-login-hero-features li::before {
    content: "✓";
    color: var(--su-teal);
    font-weight: 800;
    margin-right: var(--su-space-sm);
}

.su-login-form {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--su-space-2xl);
}

.su-login-form-inner {
    width: 100%;
    max-width: 400px;
}

.su-login-form-inner h1 {
    font-size: var(--su-text-2xl);
    font-weight: 800;
    color: var(--su-navy);
    margin-bottom: var(--su-space-xs);
}

.su-login-form-inner .su-login-sub {
    color: var(--su-grey-500);
    font-size: var(--su-text-sm);
    margin-bottom: var(--su-space-xl);
}

/* ---- Cookie Consent (styled) ---- */
.su-cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--su-navy);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--su-space-md) var(--su-space-xl);
    font-size: var(--su-text-sm);
    font-weight: 600;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--su-space-md);
    flex-wrap: wrap;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
}

.su-cookie-banner a {
    color: var(--su-teal);
    text-decoration: none;
    font-weight: 600;
}

.su-cookie-btn {
    background: var(--su-teal);
    color: var(--su-white);
    border: none;
    padding: 8px 24px;
    border-radius: var(--su-radius-pill);
    font-family: var(--su-font);
    font-size: var(--su-text-sm);
    font-weight: 700;
    cursor: pointer;
    border-bottom: 2px solid var(--su-teal-border);
    transition: all var(--su-transition-fast);
}

.su-cookie-btn:hover { filter: brightness(1.1); }
.su-cookie-btn:active { transform: translateY(1px); border-bottom-width: 1px; }

/* ---- Course Page Module Cards ---- */
.su-module-card {
    margin-bottom: var(--su-space-lg);
    border-left: 4px solid var(--su-teal);
}

.su-module-card:nth-child(2n) { border-left-color: var(--su-coral); }
.su-module-card:nth-child(3n) { border-left-color: var(--su-amber); }

.su-module-header {
    padding: var(--su-space-lg);
    border-bottom: 1px solid var(--su-grey-100);
}

.su-module-title {
    font-size: var(--su-text-lg);
    font-weight: 700;
    color: var(--su-navy);
}

.su-module-desc {
    color: var(--su-grey-600);
    font-size: var(--su-text-sm);
    margin-top: var(--su-space-xs);
}

.su-lesson-row {
    padding: var(--su-space-md) var(--su-space-lg);
    border-bottom: 1px solid var(--su-grey-50);
}

.su-lesson-title {
    font-weight: 700;
    color: var(--su-grey-800);
    margin-bottom: var(--su-space-xs);
}

.su-lesson-steps {
    display: flex;
    gap: var(--su-space-md);
    flex-wrap: wrap;
}

.su-lesson-step {
    font-size: var(--su-text-xs);
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: var(--su-radius-pill);
    background: var(--su-grey-50);
    font-weight: 600;
}

.su-lesson-step.completed {
    background: var(--su-green-light);
    color: var(--su-green-dark);
}

/* ---- USP Bar (trust strip below header) ---- */
.su-usp-bar {
    background: #041e43;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 0;
    overflow: hidden;
}

.su-usp-bar-inner {
    max-width: var(--su-max-width);
    margin: 0 auto;
    display: flex;
    align-items: stretch;
    justify-content: center;
}

.su-usp-item {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--su-space-md);
    padding: 16px var(--su-space-lg);
    position: relative;
    min-width: 0;
}

.su-usp-item + .su-usp-item::before {
    content: "";
    position: absolute;
    left: 0;
    top: 20%;
    bottom: 20%;
    width: 1px;
    background: rgba(255, 255, 255, 0.08);
}

.su-usp-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--su-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 16px;
    font-weight: 900;
    border: 2px solid;
}

.su-usp-icon-free {
    background: rgba(88, 204, 2, 0.15);
    border-color: rgba(88, 204, 2, 0.3);
    color: var(--su-green);
}

.su-usp-icon-pace {
    background: rgba(0, 184, 212, 0.15);
    border-color: rgba(0, 184, 212, 0.3);
    color: var(--su-teal);
}

.su-usp-icon-cert {
    background: rgba(255, 184, 0, 0.15);
    border-color: rgba(255, 184, 0, 0.3);
    color: var(--su-amber);
}

.su-usp-icon-all {
    background: rgba(206, 130, 255, 0.15);
    border-color: rgba(206, 130, 255, 0.3);
    color: var(--su-purple);
}

.su-usp-text {
    min-width: 0;
}

.su-usp-title {
    font-size: var(--su-text-sm);
    font-weight: 800;
    color: var(--su-white);
    line-height: 1.2;
    white-space: nowrap;
}

.su-usp-desc {
    font-size: 0.6875rem; /* 11px — intentionally small, this is a supplementary label */
    color: rgba(255, 255, 255, 0.75);
    font-weight: 600;
    line-height: 1.15;
    margin-top: 1px;
    letter-spacing: 0.01em;
}

/* Tablet: hide descriptions */
@media (max-width: 1024px) {
    .su-usp-desc { display: none; }
    .su-usp-item { padding: 12px var(--su-space-md); gap: var(--su-space-sm); }
    .su-usp-icon { width: 32px; height: 32px; font-size: 13px; }
}

/* Mobile: horizontal scroll */
@media (max-width: 768px) {
    .su-usp-bar-inner {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        justify-content: flex-start;
    }
    .su-usp-bar-inner::-webkit-scrollbar { display: none; }
    .su-usp-item {
        flex: none;
        padding: 10px var(--su-space-md);
        white-space: nowrap;
    }
    .su-usp-title { font-size: var(--su-text-xs); }
}

/* ---- Course Page Hero Grid ---- */
.su-course-hero {
    background: linear-gradient(135deg, var(--su-navy) 0%, var(--su-navy-light) 100%);
    color: var(--su-white);
    padding: var(--su-space-2xl) 0;
}

.su-course-hero-grid {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: var(--su-space-2xl);
    align-items: start;
}

.su-course-hero h1 {
    font-size: var(--su-text-3xl);
    font-weight: 900;
    margin-bottom: var(--su-space-md);
    line-height: var(--su-leading-tight);
}

.su-course-hero-desc {
    color: rgba(255, 255, 255, 0.75);
    line-height: var(--su-leading-relaxed);
    margin-bottom: var(--su-space-xl);
    max-width: 600px;
}

/* Right-side info card */
.su-course-info-card {
    background: var(--su-white);
    border-radius: var(--su-radius-xl);
    padding: var(--su-space-xl);
    color: var(--su-grey-800);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.su-course-info-card .su-btn { width: 100%; margin-bottom: var(--su-space-md); }

.su-course-info-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.su-course-info-list li {
    display: flex;
    align-items: center;
    gap: var(--su-space-sm);
    padding: 10px 0;
    border-bottom: 1px solid var(--su-grey-100);
    font-size: var(--su-text-sm);
    font-weight: 600;
    color: var(--su-grey-700);
}

.su-course-info-list li:last-child { border-bottom: none; }

.su-course-info-list .su-info-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--su-radius-full);
    background: var(--su-teal-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
}

.su-course-info-list .su-info-value {
    margin-left: auto;
    font-weight: 800;
    color: var(--su-navy);
}

/* ---- Course Stats Row ---- */
.su-course-stats-row {
    display: flex;
    gap: var(--su-space-xl);
    padding: var(--su-space-lg) 0;
    border-bottom: 2px solid var(--su-grey-100);
    margin-bottom: var(--su-space-xl);
    flex-wrap: wrap;
}

.su-course-stat-item {
    display: flex;
    align-items: center;
    gap: var(--su-space-sm);
    font-size: var(--su-text-sm);
    font-weight: 600;
    color: var(--su-grey-600);
}

.su-course-stat-item strong {
    color: var(--su-navy);
    font-weight: 800;
}

/* ---- Accordion Modules ---- */
.su-accordion {
    margin-bottom: var(--su-space-md);
}

.su-accordion-header {
    display: flex;
    align-items: center;
    gap: var(--su-space-md);
    padding: var(--su-space-lg);
    background: var(--su-white);
    border: 2px solid var(--su-grey-100);
    border-bottom-width: var(--su-depth-md);
    border-bottom-color: var(--su-grey-200);
    border-radius: var(--su-radius-lg);
    cursor: pointer;
    transition: all var(--su-transition-fast);
    user-select: none;
    width: 100%;
    text-align: left;
    font-family: var(--su-font);
}

.su-accordion-header:hover {
    border-color: var(--su-grey-200);
    background: var(--su-grey-50);
}

.su-accordion.open .su-accordion-header {
    border-radius: var(--su-radius-lg) var(--su-radius-lg) 0 0;
    border-bottom-color: var(--su-grey-100);
    border-bottom-width: 1px;
}

.su-accordion-number {
    width: 36px;
    height: 36px;
    border-radius: var(--su-radius-full);
    background: var(--su-teal);
    color: var(--su-white);
    font-size: var(--su-text-sm);
    font-weight: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border-bottom: 2px solid var(--su-teal-border);
}

.su-accordion:nth-child(2n) .su-accordion-number {
    background: var(--su-coral);
    border-bottom-color: var(--su-coral-dark);
}

.su-accordion:nth-child(3n) .su-accordion-number {
    background: var(--su-amber);
    border-bottom-color: var(--su-amber-dark);
}

.su-accordion-title {
    flex: 1;
}

.su-accordion-title h3 {
    font-size: var(--su-text-base);
    font-weight: 800;
    color: var(--su-navy);
    margin: 0;
}

.su-accordion-title p {
    font-size: var(--su-text-xs);
    color: var(--su-grey-500);
    margin: 2px 0 0;
}

.su-accordion-meta {
    display: flex;
    gap: var(--su-space-sm);
    align-items: center;
}

.su-accordion-badge {
    background: var(--su-grey-100);
    color: var(--su-grey-600);
    font-size: var(--su-text-xs);
    font-weight: 600;
    padding: 4px 10px;
    border-radius: var(--su-radius-pill);
    white-space: nowrap;
}

.su-accordion-chevron {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--su-grey-400);
    transition: transform 0.3s var(--su-bounce);
    font-size: 18px;
}

.su-accordion.open .su-accordion-chevron {
    transform: rotate(180deg);
}

.su-accordion-body {
    border: 2px solid var(--su-grey-100);
    border-top: none;
    border-radius: 0 0 var(--su-radius-lg) var(--su-radius-lg);
    background: var(--su-white);
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.35s ease;
}

.su-accordion.open .su-accordion-body {
    max-height: 1000px;
}

/* Lesson items inside accordion */
.su-lesson-item {
    padding: var(--su-space-md) var(--su-space-lg);
    border-bottom: 1px solid var(--su-grey-50);
}

.su-lesson-item:last-child { border-bottom: none; }

.su-lesson-item-title {
    font-weight: 700;
    font-size: var(--su-text-sm);
    color: var(--su-grey-800);
    margin-bottom: var(--su-space-sm);
}

.su-step-list {
    display: flex;
    flex-direction: column;
    gap: var(--su-space-xs);
}

.su-step-item {
    display: flex;
    align-items: center;
    gap: var(--su-space-sm);
    padding: 6px 12px;
    border-radius: var(--su-radius-md);
    font-size: var(--su-text-xs);
    font-weight: 600;
    color: var(--su-grey-600);
    transition: background var(--su-transition-fast);
}

.su-step-item:hover { background: var(--su-grey-50); }

.su-step-item.completed {
    color: var(--su-green-dark);
}

.su-step-item-icon {
    width: 24px;
    height: 24px;
    border-radius: var(--su-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--su-text-xs);
    flex-shrink: 0;
    font-weight: 800;
}

.su-step-item-icon.content { background: var(--su-teal-light); color: var(--su-teal-dark); }
.su-step-item-icon.quiz { background: var(--su-purple-light); color: var(--su-purple-dark); }
.su-step-item-icon.video { background: var(--su-coral-light); color: var(--su-coral-dark); }
.su-step-item-icon.done { background: var(--su-green); color: var(--su-white); }

.su-step-item-type {
    font-size: var(--su-text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--su-grey-400);
    margin-left: auto;
}

/* ---- Preview Section ---- */
.su-preview-section {
    margin-top: var(--su-space-2xl);
    background: var(--su-grey-50);
    border-radius: var(--su-radius-xl);
    padding: var(--su-space-xl);
    border: 2px solid var(--su-grey-100);
}

.su-preview-header {
    display: flex;
    align-items: center;
    gap: var(--su-space-md);
    margin-bottom: var(--su-space-lg);
}

.su-preview-badge {
    background: var(--su-green);
    color: var(--su-white);
    font-size: var(--su-text-xs);
    font-weight: 800;
    padding: 4px 12px;
    border-radius: var(--su-radius-pill);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.su-preview-content {
    background: var(--su-white);
    border-radius: var(--su-radius-lg);
    padding: var(--su-space-2xl);
    border: 1px solid var(--su-grey-100);
}

.su-preview-cta {
    text-align: center;
    margin-top: var(--su-space-xl);
    padding-top: var(--su-space-xl);
    border-top: 2px solid var(--su-grey-100);
}

/* ---- Org Summary Card (dashboard) ---- */
.su-org-summary-card {
    display: flex;
    align-items: center;
    gap: var(--su-space-lg);
    padding: var(--su-space-lg) var(--su-space-xl);
    background: var(--su-white);
    border-radius: var(--su-radius-xl);
    border: 2px solid var(--su-grey-100);
    border-left: 4px solid var(--su-teal);
    border-bottom-width: var(--su-depth-lg);
    border-bottom-color: var(--su-grey-200);
    margin-bottom: var(--su-space-xl);
    flex-wrap: wrap;
}

.su-org-summary-left {
    display: flex;
    align-items: center;
    gap: var(--su-space-md);
    flex: 1;
    min-width: 200px;
}

.su-org-summary-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--su-radius-lg);
    background: linear-gradient(135deg, var(--su-navy) 0%, var(--su-navy-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.su-org-summary-name {
    font-size: var(--su-text-lg);
    font-weight: 800;
    color: var(--su-navy);
}

.su-org-summary-sub {
    font-size: var(--su-text-xs);
    color: var(--su-grey-500);
    font-weight: 600;
}

.su-org-summary-stats {
    display: flex;
    gap: var(--su-space-xl);
    text-align: center;
}

.su-org-summary-stat-value {
    font-size: var(--su-text-xl);
    font-weight: 900;
    color: var(--su-teal);
}

.su-org-summary-stat-label {
    font-size: var(--su-text-xs);
    font-weight: 600;
    color: var(--su-grey-400);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ---- Org Dashboard (org.aspx) ---- */
.su-org-header {
    background: linear-gradient(135deg, var(--su-navy) 0%, var(--su-navy-light) 100%);
    color: var(--su-white);
    padding: var(--su-space-xl) 0;
}

.su-org-header-inner {
    display: flex;
    align-items: center;
    gap: var(--su-space-lg);
    flex-wrap: wrap;
}

.su-org-header-logo {
    width: 56px;
    height: 56px;
    border-radius: var(--su-radius-lg);
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    flex-shrink: 0;
    overflow: hidden;
}

.su-org-header-logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.su-org-header-name {
    font-size: var(--su-text-2xl);
    font-weight: 800;
}

.su-org-header-meta {
    font-size: var(--su-text-sm);
    color: rgba(255, 255, 255, 0.6);
    margin-top: 2px;
}

/* Org stats grid */
.su-org-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--su-space-md);
    margin-bottom: var(--su-space-xl);
}

.su-org-stat-card {
    background: var(--su-white);
    border-radius: var(--su-radius-lg);
    border: 2px solid var(--su-grey-100);
    border-bottom-width: var(--su-depth-md);
    border-bottom-color: var(--su-grey-200);
    padding: var(--su-space-lg);
    text-align: center;
}

.su-org-stat-card-value {
    font-size: var(--su-text-3xl);
    font-weight: 900;
    color: var(--su-teal);
}

.su-org-stat-card-label {
    font-size: var(--su-text-xs);
    font-weight: 600;
    color: var(--su-grey-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: var(--su-space-xs);
}

/* Org data table */
.su-org-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.su-org-table th {
    text-align: left;
    padding: var(--su-space-sm) var(--su-space-md);
    font-size: var(--su-text-xs);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--su-grey-500);
    border-bottom: 2px solid var(--su-grey-100);
}

.su-org-table td {
    padding: var(--su-space-md);
    font-size: var(--su-text-sm);
    font-weight: 600;
    color: var(--su-grey-700);
    border-bottom: 1px solid var(--su-grey-50);
}

.su-org-table tr:hover td {
    background: var(--su-grey-50);
}

.su-org-table .su-org-table-name {
    font-weight: 600;
    color: var(--su-navy);
}

/* Org promo card (for Teams CTA on profile) */
.su-org-promo {
    display: flex;
    border-radius: var(--su-radius-xl);
    overflow: hidden;
    border: 2px solid var(--su-grey-100);
    border-bottom-width: var(--su-depth-lg);
    border-bottom-color: var(--su-grey-200);
    margin-bottom: var(--su-space-2xl);
}

.su-org-promo-hero {
    flex: 1;
    background: linear-gradient(135deg, var(--su-navy) 0%, var(--su-navy-light) 100%);
    color: var(--su-white);
    padding: var(--su-space-xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 240px;
}

.su-org-promo-hero-icon {
    font-size: 40px;
    margin-bottom: var(--su-space-md);
}

.su-org-promo-hero h3 {
    font-size: var(--su-text-xl);
    font-weight: 800;
    margin-bottom: var(--su-space-sm);
}

.su-org-promo-hero p {
    font-size: var(--su-text-sm);
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

.su-org-promo-body {
    flex: 1;
    padding: var(--su-space-xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.su-org-promo-list {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--su-space-lg);
}

.su-org-promo-list li {
    padding: var(--su-space-sm) 0;
    font-size: var(--su-text-sm);
    font-weight: 600;
    color: var(--su-grey-700);
    display: flex;
    align-items: center;
    gap: var(--su-space-sm);
}

.su-org-promo-list li::before {
    content: "✓";
    color: var(--su-teal);
    font-weight: 800;
}

/* Org membership section (profile) */
.su-org-membership {
    display: flex;
    align-items: center;
    gap: var(--su-space-md);
    padding: var(--su-space-lg);
    margin-bottom: var(--su-space-2xl);
}

.su-org-role-badge {
    display: inline-flex;
    padding: 4px 12px;
    border-radius: var(--su-radius-pill);
    font-size: var(--su-text-xs);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.su-org-role-badge.admin {
    background: var(--su-teal);
    color: var(--su-white);
}

.su-org-role-badge.member {
    background: var(--su-grey-100);
    color: var(--su-grey-600);
}

/* Org breadcrumb */
.su-org-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--su-space-sm);
    font-size: var(--su-text-sm);
    font-weight: 600;
    color: var(--su-grey-500);
    margin-bottom: var(--su-space-lg);
}

.su-org-breadcrumb a {
    color: var(--su-teal);
    text-decoration: none;
}

.su-org-breadcrumb a:hover { text-decoration: underline; }
.su-org-breadcrumb .sep { color: var(--su-grey-300); }

/* Responsive org */
@media (max-width: 768px) {
    .su-org-summary-card { flex-direction: column; align-items: flex-start; }
    .su-org-stats-grid { grid-template-columns: repeat(2, 1fr); }
    .su-org-promo { flex-direction: column; }
    .su-org-promo-hero { min-width: auto; }
}

/* ---- Learn Page Top Bar ---- */
.su-learn-topbar {
    background: var(--su-white);
    border-bottom: 2px solid var(--su-grey-100);
    padding: var(--su-space-sm) var(--su-space-lg);
    display: flex;
    align-items: center;
    gap: var(--su-space-md);
}

.su-learn-topbar-title {
    font-weight: 600;
    color: var(--su-navy);
    text-decoration: none;
    font-size: var(--su-text-sm);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 250px;
}

.su-learn-topbar-title:hover { color: var(--su-teal); }

.su-learn-topbar .su-progress-bar { flex: 1; max-width: 300px; }

.su-learn-topbar-pct {
    font-size: var(--su-text-xs);
    font-weight: 800;
    color: var(--su-teal);
    min-width: 36px;
    text-align: right;
}

.su-learn-topbar-close {
    width: 32px;
    height: 32px;
    border-radius: var(--su-radius-full);
    border: 2px solid var(--su-grey-200);
    background: var(--su-white);
    color: var(--su-grey-500);
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-weight: 600;
    transition: all var(--su-transition-fast);
    margin-left: auto;
}

.su-learn-topbar-close:hover {
    border-color: var(--su-coral);
    color: var(--su-coral);
    background: var(--su-coral-light);
}

/* Learn topbar mobile */
@media (max-width: 768px) {
    .su-learn-topbar-title { display: none; }
    .su-learn-topbar .su-progress-bar { max-width: 120px; }
    .su-learn-topbar-pct { font-size: var(--su-text-xs); min-width: 28px; }
    .su-hearts { gap: 2px; }
    .su-heart { font-size: 14px; }
}

/* Learn content step footer */
.su-learn-footer {
    text-align: center;
    margin-top: var(--su-space-2xl);
    padding-top: var(--su-space-xl);
    border-top: 2px solid var(--su-grey-100);
}

/* Learn navigation */
.su-learn-nav {
    display: flex;
    justify-content: space-between;
    margin-top: var(--su-space-2xl);
    padding-top: var(--su-space-lg);
    border-top: 1px solid var(--su-grey-100);
}

/* Quiz step header */
.su-quiz-header {
    display: flex;
    align-items: center;
    gap: var(--su-space-md);
    margin-bottom: var(--su-space-lg);
}

.su-quiz-header h2 {
    font-size: var(--su-text-xl);
    font-weight: 800;
    color: var(--su-navy);
    margin: 0;
}

.su-quiz-meta {
    font-size: var(--su-text-sm);
    color: var(--su-grey-500);
    font-weight: 600;
    display: flex;
    gap: var(--su-space-md);
}

.su-quiz-meta span {
    padding: 3px 12px;
    border-radius: var(--su-radius-pill);
    background: var(--su-grey-50);
}

/* ---- Certificate ---- */
.su-cert-container {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--su-space-2xl) var(--su-space-lg);
}

.su-cert-frame {
    background: var(--su-white);
    border-radius: var(--su-radius-2xl);
    box-shadow: 0 8px 40px rgba(10, 47, 66, 0.12);
    padding: 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.su-cert-border {
    position: absolute;
    inset: 12px;
    border: 2px solid var(--su-teal);
    border-radius: var(--su-radius-xl);
    pointer-events: none;
}

/* Corner rosettes */
.su-cert-border::before,
.su-cert-border::after {
    content: "";
    position: absolute;
    width: 40px;
    height: 40px;
    border-radius: var(--su-radius-full);
    background: var(--su-teal-light);
    border: 2px solid var(--su-teal);
}

.su-cert-border::before { top: -20px; left: -20px; }
.su-cert-border::after { top: -20px; right: -20px; }

.su-cert-logo {
    width: 80px;
    height: 80px;
    border-radius: var(--su-radius-full);
    background: linear-gradient(135deg, var(--su-navy) 0%, var(--su-navy-light) 100%);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    margin-bottom: var(--su-space-lg);
}

.su-cert-org {
    font-size: var(--su-text-xs);
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--su-grey-400);
    font-weight: 600;
    margin-bottom: var(--su-space-xs);
}

.su-cert-title {
    font-size: var(--su-text-3xl);
    font-weight: 900;
    color: var(--su-navy);
    margin-bottom: 4px;
}

.su-cert-subtitle {
    font-size: var(--su-text-sm);
    color: var(--su-grey-500);
    font-weight: 600;
    margin-bottom: var(--su-space-2xl);
}

.su-cert-label {
    font-size: var(--su-text-sm);
    color: var(--su-grey-500);
    margin-bottom: var(--su-space-xs);
}

.su-cert-name {
    font-size: var(--su-text-3xl);
    font-weight: 800;
    color: var(--su-navy);
    margin-bottom: var(--su-space-lg);
    font-style: italic;
}

.su-cert-course {
    font-size: var(--su-text-xl);
    font-weight: 600;
    color: var(--su-teal-dark);
    margin-bottom: var(--su-space-2xl);
}

.su-cert-details {
    display: flex;
    justify-content: center;
    gap: var(--su-space-3xl);
    margin-bottom: var(--su-space-xl);
}

.su-cert-detail-label {
    font-size: var(--su-text-xs);
    color: var(--su-grey-400);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.su-cert-detail-value {
    font-size: var(--su-text-base);
    font-weight: 600;
    color: var(--su-grey-800);
    margin-top: 4px;
}

.su-cert-seal {
    width: 64px;
    height: 64px;
    border-radius: var(--su-radius-full);
    background: linear-gradient(135deg, var(--su-amber) 0%, var(--su-amber-dark) 100%);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin: var(--su-space-lg) auto;
    box-shadow: 0 4px 12px rgba(255, 184, 0, 0.3);
}

.su-cert-verify {
    font-size: var(--su-text-xs);
    color: var(--su-grey-400);
}

.su-cert-verify a { color: var(--su-teal); }

.su-cert-actions {
    text-align: center;
    margin-top: var(--su-space-xl);
    display: flex;
    justify-content: center;
    gap: var(--su-space-md);
    flex-wrap: wrap;
}

/* ---- Leaderboard ---- */
.su-leaderboard-row {
    display: flex;
    align-items: center;
    gap: var(--su-space-md);
    padding: var(--su-space-md) var(--su-space-lg);
    border-bottom: 1px solid var(--su-grey-100);
    transition: background var(--su-transition-fast);
}

.su-leaderboard-row:hover { background: var(--su-grey-50); }

.su-leaderboard-row.podium {
    background: linear-gradient(90deg, var(--su-teal-light) 0%, var(--su-white) 100%);
}

.su-leaderboard-rank {
    width: 36px;
    height: 36px;
    border-radius: var(--su-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: var(--su-text-sm);
    flex-shrink: 0;
}

.su-leaderboard-rank.gold { background: var(--su-amber); color: var(--su-white); }
.su-leaderboard-rank.silver { background: var(--su-grey-300); color: var(--su-white); }
.su-leaderboard-rank.bronze { background: #cd7f32; color: var(--su-white); }
.su-leaderboard-rank.default { background: var(--su-grey-100); color: var(--su-grey-500); }

.su-leaderboard-name {
    flex: 1;
}

.su-leaderboard-name-text {
    font-weight: 700;
    color: var(--su-grey-800);
}

.su-leaderboard-name-sub {
    font-size: var(--su-text-xs);
    color: var(--su-grey-500);
}

.su-leaderboard-points {
    font-weight: 900;
    color: var(--su-teal);
    font-size: var(--su-text-lg);
}

/* =====================================================
   PHASE 6: ANIMATION SYSTEM
   ===================================================== */

/* ---- Scroll Entrance (base) ---- */
.su-animate-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.su-animate-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger children: each child delays slightly more */
.su-stagger > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.su-stagger.visible > *:nth-child(1) { transition-delay: 0ms; }
.su-stagger.visible > *:nth-child(2) { transition-delay: 80ms; }
.su-stagger.visible > *:nth-child(3) { transition-delay: 160ms; }
.su-stagger.visible > *:nth-child(4) { transition-delay: 240ms; }
.su-stagger.visible > *:nth-child(5) { transition-delay: 320ms; }
.su-stagger.visible > *:nth-child(6) { transition-delay: 400ms; }

.su-stagger.visible > * {
    opacity: 1;
    transform: translateY(0);
}

/* ---- Hero Entrance (on page load, not scroll) ---- */
.su-hero-enter > * {
    opacity: 0;
    transform: translateY(30px);
    animation: heroEntrance 0.7s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.su-hero-enter > *:nth-child(1) { animation-delay: 0.1s; }
.su-hero-enter > *:nth-child(2) { animation-delay: 0.25s; }
.su-hero-enter > *:nth-child(3) { animation-delay: 0.4s; }
.su-hero-enter > *:nth-child(4) { animation-delay: 0.55s; }

@keyframes heroEntrance {
    0%   { opacity: 0; transform: translateY(30px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* ---- Card 3D Tilt on Hover ---- */
.su-tilt {
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.3s ease;
    will-change: transform;
}

.su-tilt:hover {
    transform: perspective(800px) rotateX(-2deg) rotateY(2deg) translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
}

/* ---- CTA Button Pulse Glow ---- */
.su-btn-pulse {
    position: relative;
    overflow: visible;
}

.su-btn-pulse::after {
    content: "";
    position: absolute;
    inset: -4px;
    border-radius: inherit;
    background: inherit;
    opacity: 0;
    z-index: -1;
    animation: ctaPulse 2.5s cubic-bezier(0.4, 0, 0.6, 1) infinite;
    filter: blur(12px);
}

@keyframes ctaPulse {
    0%, 100% { opacity: 0; transform: scale(1); }
    50%      { opacity: 0.3; transform: scale(1.04); }
}

/* ---- Nav Link Underline Slide ---- */
.su-nav-link::after {
    content: "";
    position: absolute;
    bottom: 2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--su-teal);
    border-radius: 2px;
    transition: width 0.25s cubic-bezier(0.16, 1, 0.3, 1),
                left 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.su-nav-link:hover::after,
.su-nav-link.active::after {
    width: 60%;
    left: 20%;
}

/* ---- USP Icon Micro-interactions ---- */
.su-usp-item:hover .su-usp-icon {
    transform: scale(1.15) rotate(-8deg);
    transition: transform 0.35s var(--su-bounce);
}

.su-usp-icon {
    transition: transform 0.35s var(--su-bounce);
}

/* ---- Progress Bar Shimmer ---- */
.su-progress-bar-fill {
    position: relative;
    overflow: hidden;
}

.su-progress-bar-fill::after {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.3) 50%,
        transparent 100%
    );
    animation: shimmer 2.5s ease-in-out infinite;
}

@keyframes shimmer {
    0%   { left: -100%; }
    60%  { left: 100%; }
    100% { left: 100%; }
}

/* ---- Accordion Expand (smoother) ---- */
.su-accordion-body {
    transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.su-accordion.open .su-accordion-body .su-lesson-item {
    animation: accordionSlideIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.su-accordion.open .su-accordion-body .su-lesson-item:nth-child(1) { animation-delay: 50ms; }
.su-accordion.open .su-accordion-body .su-lesson-item:nth-child(2) { animation-delay: 100ms; }
.su-accordion.open .su-accordion-body .su-lesson-item:nth-child(3) { animation-delay: 150ms; }
.su-accordion.open .su-accordion-body .su-lesson-item:nth-child(4) { animation-delay: 200ms; }

@keyframes accordionSlideIn {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ---- Featured Card Hover Shine ---- */
.su-featured-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: -75%;
    width: 50%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.04),
        transparent
    );
    transition: left 0.6s ease;
    pointer-events: none;
    z-index: 1;
}

.su-featured-card:hover::before {
    left: 125%;
}

/* ---- Badge Card Earned Sparkle ---- */
.su-badge-card.su-badge-earned::before {
    content: "";
    position: absolute;
    top: 12px;
    right: 12px;
    width: 8px;
    height: 8px;
    background: var(--su-teal);
    border-radius: var(--su-radius-full);
    animation: sparkle 2s ease-in-out infinite;
    box-shadow: 0 0 6px var(--su-teal);
}

@keyframes sparkle {
    0%, 100% { opacity: 0.4; transform: scale(0.8); }
    50%      { opacity: 1; transform: scale(1.2); }
}

/* ---- Count-up Numbers ---- */
.su-count-up {
    display: inline-block;
}

/* ---- Floating Subtle Animation (for decorative elements) ---- */
.su-float {
    animation: gentleFloat 6s ease-in-out infinite;
}

@keyframes gentleFloat {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-6px); }
}

/* ---- Logo Subtle Glow on Hover ---- */
.su-logo:hover img {
    filter: drop-shadow(0 0 8px rgba(0, 184, 212, 0.4));
    transition: filter 0.3s ease;
}

.su-logo img {
    transition: filter 0.3s ease;
}

/* ---- Toast Notification ---- */
.su-toast {
    position: fixed;
    bottom: var(--su-space-xl);
    right: var(--su-space-xl);
    background: var(--su-white);
    border-radius: var(--su-radius-xl);
    border: 2px solid var(--su-grey-100);
    border-bottom-width: var(--su-depth-lg);
    border-bottom-color: var(--su-grey-200);
    padding: var(--su-space-md) var(--su-space-lg);
    display: flex;
    align-items: center;
    gap: var(--su-space-md);
    z-index: 150;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.4s var(--su-bounce);
}

.su-toast.show {
    transform: translateY(0);
    opacity: 1;
}

.su-toast-icon { font-size: 28px; }
.su-toast-text { font-size: var(--su-text-sm); font-weight: 600; color: var(--su-navy); }

/* ---- Mobile ---- */
@media (max-width: 768px) {
    .su-hamburger { display: flex; }

    .su-nav {
        position: fixed;
        top: var(--su-header-height);
        left: 0;
        right: 0;
        background: var(--su-navy);
        flex-direction: column;
        padding: var(--su-space-md);
        transform: translateY(-120%);
        opacity: 0;
        pointer-events: none;
        transition: all 0.3s var(--su-bounce);
        z-index: 99;
        box-shadow: var(--su-shadow-lg);
        border-radius: 0 0 var(--su-radius-xl) var(--su-radius-xl);
    }

    .su-nav.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .su-nav-link {
        width: 100%;
        padding: var(--su-space-md);
        text-align: center;
        color: rgba(255, 255, 255, 0.7);
    }

    .su-logo img { height: 40px; }
    .su-hero-title { font-size: var(--su-text-3xl); }
    .su-audience-cards { flex-direction: column; align-items: center; }
    .su-audience-card { max-width: 100%; }
    .su-celebration-stats { flex-direction: column; gap: var(--su-space-md); }
    .su-stats { flex-direction: column; gap: var(--su-space-md); }
    .su-profile-header { flex-direction: column; }
    .su-page-header h1 { font-size: var(--su-text-2xl); }
    .su-steps-row { grid-template-columns: 1fr; }
    .su-value-row { grid-template-columns: 1fr; }
    .su-bottom-cta-title { font-size: var(--su-text-2xl); }
    .su-course-hero-grid { grid-template-columns: 1fr; }
    .su-course-info-card { order: -1; }
    .su-course-stats-row { flex-direction: column; gap: var(--su-space-sm); }
    .su-login-layout { flex-direction: column; }
    .su-login-hero { padding: var(--su-space-xl); }
    .su-login-hero-title { font-size: var(--su-text-xl); }
    .su-login-hero-features { display: none; }
    .su-featured-card:only-child { flex-direction: column; max-width: 100%; }
    .su-featured-card:only-child .su-featured-card-header { min-width: auto; }
    .su-featured-card { min-width: auto; }
}

/* =====================================================
   ACCESSIBILITY (WCAG 2.1 AA)
   ===================================================== */

/* ---- Skip-to-Content Link ---- */
.su-skip-link {
    position: absolute;
    top: -60px;
    left: var(--su-space-md);
    background: var(--su-teal);
    color: var(--su-white);
    padding: var(--su-space-sm) var(--su-space-lg);
    border-radius: 0 0 var(--su-radius-md) var(--su-radius-md);
    font-size: var(--su-text-sm);
    font-weight: 700;
    text-decoration: none;
    z-index: 9999;
    transition: top 0.2s ease;
}

.su-skip-link:focus {
    top: 0;
}

/* ---- Focus Visible Styles ---- */
.su-btn:focus-visible {
    outline: 3px solid var(--su-teal);
    outline-offset: 3px;
}

.su-nav-link:focus-visible {
    outline: 2px solid var(--su-white);
    outline-offset: 2px;
    border-radius: var(--su-radius-sm);
}

.su-hamburger:focus-visible {
    outline: 2px solid var(--su-white);
    outline-offset: 4px;
}

.su-sidebar-step:focus-visible {
    outline: 2px solid var(--su-teal);
    outline-offset: -2px;
}

.su-accordion-header:focus-visible {
    outline: 3px solid var(--su-teal);
    outline-offset: 2px;
}

.su-featured-card:focus-visible,
.su-card:focus-visible,
a.su-card:focus-visible {
    outline: 3px solid var(--su-teal);
    outline-offset: 2px;
}

.su-quiz-option:focus-visible {
    outline: 3px solid var(--su-teal);
    outline-offset: 2px;
}

.su-cookie-btn:focus-visible {
    outline: 2px solid var(--su-white);
    outline-offset: 2px;
}

/* ---- Visually Hidden (screen reader only) ---- */
.su-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ---- Reduced Motion ---- */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .su-animate-in,
    .su-stagger > * {
        opacity: 1 !important;
        transform: none !important;
    }

    .su-hero-enter > * {
        opacity: 1 !important;
        transform: none !important;
        animation: none !important;
    }

    .su-confetti { display: none !important; }

    .su-tilt:hover { transform: none !important; }

    .su-progress-bar-fill::after { animation: none !important; }

    .su-btn-pulse::after { animation: none !important; }
}