/* ============================================
   AlphaDevs Academy — Master Styles
   Course: From Zero to Hero with Claude Cowork
   ============================================ */

/* ---------- CSS Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Heebo', 'Rubik', -apple-system, BlinkMacSystemFont, sans-serif;
    direction: rtl;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
img, svg { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
a { color: inherit; text-decoration: none; }

/* ---------- Design Tokens ---------- */
:root {
    /* Brand */
    --brand-50:  #eef2ff;
    --brand-100: #e0e7ff;
    --brand-200: #c7d2fe;
    --brand-300: #a5b4fc;
    --brand-400: #818cf8;
    --brand-500: #6366f1;
    --brand-600: #4f46e5;
    --brand-700: #4338ca;
    --brand-800: #3730a3;
    --brand-900: #312e81;

    --accent-purple: #8b5cf6;
    --accent-pink: #ec4899;
    --accent-orange: #f59e0b;

    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --info: #3b82f6;
    --info-light: #dbeafe;

    /* Neutrals */
    --slate-50:  #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;

    /* Theme */
    --bg: #fafbff;
    --bg-card: #ffffff;
    --bg-elevated: #ffffff;
    --text: var(--slate-900);
    --text-muted: var(--slate-600);
    --text-subtle: var(--slate-500);
    --border: var(--slate-200);
    --border-strong: var(--slate-300);

    /* Effects */
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.10), 0 8px 10px -6px rgba(15, 23, 42, 0.06);
    --shadow-brand: 0 10px 30px -10px rgba(99, 102, 241, 0.4);

    --radius-sm: 6px;
    --radius: 10px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;

    --gradient-brand: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
    --gradient-brand-soft: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(139, 92, 246, 0.08) 50%, rgba(236, 72, 153, 0.08) 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --gradient-mesh:
        radial-gradient(at 20% 20%, rgba(99, 102, 241, 0.15) 0px, transparent 50%),
        radial-gradient(at 80% 0%, rgba(236, 72, 153, 0.10) 0px, transparent 50%),
        radial-gradient(at 80% 50%, rgba(139, 92, 246, 0.10) 0px, transparent 50%);

    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Heebo', sans-serif;
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.02em;
    color: var(--text);
}
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.6rem); }
h4 { font-size: 1.15rem; }
p { color: var(--text-muted); }
.lead { font-size: 1.15rem; color: var(--text-muted); }
.muted { color: var(--text-subtle); }
strong { color: var(--text); font-weight: 700; }
code {
    font-family: 'JetBrains Mono', 'SF Mono', Menlo, monospace;
    background: var(--slate-100);
    color: var(--brand-700);
    padding: 2px 7px;
    border-radius: 5px;
    font-size: 0.92em;
    direction: ltr;
    display: inline-block;
}

/* ---------- Layout ---------- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.container-narrow {
    max-width: 820px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Top Navigation ---------- */
.topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border);
}
.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
}
.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
    font-size: 1.1rem;
}
.brand-logo {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--gradient-brand);
    display: grid;
    place-items: center;
    color: white;
    font-weight: 900;
    box-shadow: var(--shadow-brand);
}
.brand-name { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name b { font-size: 1.05rem; }
.brand-name span { font-size: 0.75rem; color: var(--text-subtle); font-weight: 500; }
.topbar-actions { display: flex; align-items: center; gap: 12px; }
.progress-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    background: var(--brand-50);
    color: var(--brand-700);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.88rem;
    border: 1px solid var(--brand-100);
}
.progress-pill .dot {
    width: 8px; height: 8px;
    background: var(--brand-500);
    border-radius: 50%;
    animation: pulse 2s ease infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%      { opacity: 0.6; transform: scale(1.2); }
}

/* ---------- Hero ---------- */
.hero {
    position: relative;
    padding: 80px 0 60px;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-mesh);
    z-index: -1;
}
.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--brand-700);
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}
.hero-eyebrow .sparkle {
    color: var(--accent-pink);
}
.hero h1 {
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 20px;
    max-width: 900px;
}
.hero-sub {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 720px;
    margin-bottom: 36px;
}
.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
    margin-top: 40px;
    padding-top: 36px;
    border-top: 1px solid var(--border);
}
.stat-item .stat-num {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
}
.stat-item .stat-label {
    font-size: 0.88rem;
    color: var(--text-subtle);
    margin-top: 4px;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 22px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition);
    border: 1px solid transparent;
    cursor: pointer;
    white-space: nowrap;
}
.btn-primary {
    background: var(--gradient-brand);
    color: white;
    box-shadow: var(--shadow-brand);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 35px -10px rgba(99, 102, 241, 0.55);
}
.btn-secondary {
    background: var(--bg-card);
    color: var(--text);
    border-color: var(--border);
    box-shadow: var(--shadow-sm);
}
.btn-secondary:hover {
    border-color: var(--brand-300);
    color: var(--brand-700);
    transform: translateY(-1px);
}
.btn-ghost {
    background: transparent;
    color: var(--text-muted);
}
.btn-ghost:hover { color: var(--brand-700); background: var(--brand-50); }
.btn-lg { padding: 16px 30px; font-size: 1rem; }
.btn-sm { padding: 8px 14px; font-size: 0.85rem; }

/* ---------- Day Cards Grid ---------- */
.section-title {
    display: flex;
    align-items: end;
    justify-content: space-between;
    margin: 56px 0 28px;
    flex-wrap: wrap;
    gap: 12px;
}
.section-title h2 { margin: 0; }
.section-title .label {
    color: var(--brand-600);
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 6px;
    display: block;
}
.section-title .desc { color: var(--text-muted); margin-top: 6px; max-width: 600px; }

.days-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 22px;
    padding-bottom: 80px;
}
.day-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all var(--transition);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 16px;
    text-decoration: none;
    color: inherit;
}
.day-card::before {
    content: '';
    position: absolute;
    top: 0; right: 0; left: 0;
    height: 4px;
    background: var(--gradient-brand);
    opacity: 0;
    transition: opacity var(--transition);
}
.day-card:not(.locked):hover {
    transform: translateY(-4px);
    border-color: var(--brand-200);
    box-shadow: var(--shadow-lg);
}
.day-card:not(.locked):hover::before { opacity: 1; }
.day-card.locked {
    opacity: 0.6;
    cursor: not-allowed;
}
.day-card.locked .lock-overlay {
    position: absolute;
    inset: 0;
    background: rgba(248, 250, 252, 0.7);
    backdrop-filter: blur(2px);
    display: grid;
    place-items: center;
    z-index: 2;
    border-radius: var(--radius-lg);
}
.day-card.completed {
    border-color: var(--success);
    background: linear-gradient(135deg, #ecfdf5 0%, #ffffff 100%);
}
.day-card.completed::before {
    background: var(--gradient-success);
    opacity: 1;
}
.day-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.day-num {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--brand-50);
    color: var(--brand-700);
    padding: 5px 12px;
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
}
.day-card.completed .day-num {
    background: var(--success-light);
    color: var(--success);
}
.day-status-icon {
    width: 28px; height: 28px;
    display: grid;
    place-items: center;
    border-radius: 50%;
}
.day-card h3 {
    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1.3;
}
.day-card .day-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    flex: 1;
}
.day-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 8px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    color: var(--text-subtle);
    font-size: 0.85rem;
}
.day-meta .meta-item {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.day-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--brand-700);
    font-weight: 700;
    font-size: 0.92rem;
    margin-right: auto;
    transition: transform var(--transition);
}
.day-card:hover .day-cta { transform: translateX(-4px); }

/* ---------- Lesson Page Layout ---------- */
.lesson-shell {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 40px;
    padding: 40px 0 80px;
    align-items: start;
}
@media (max-width: 960px) {
    .lesson-shell { grid-template-columns: 1fr; gap: 24px; }
}
.lesson-sidebar {
    position: sticky;
    top: 88px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 22px;
    box-shadow: var(--shadow-sm);
}
.lesson-sidebar h4 {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-subtle);
    font-weight: 700;
    margin-bottom: 14px;
}
.toc-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
    list-style: none;
}
.toc-list a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: 8px;
    color: var(--text-muted);
    font-size: 0.92rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    border-right: 3px solid transparent;
}
.toc-list a:hover { background: var(--brand-50); color: var(--brand-700); }
.toc-list a.active {
    background: var(--brand-50);
    color: var(--brand-700);
    font-weight: 600;
    border-right-color: var(--brand-500);
}
.toc-num {
    width: 22px; height: 22px;
    border-radius: 50%;
    background: var(--slate-100);
    color: var(--text-subtle);
    font-size: 0.75rem;
    display: grid;
    place-items: center;
    font-weight: 700;
    flex-shrink: 0;
}
.toc-list a.active .toc-num {
    background: var(--brand-500);
    color: white;
}

.lesson-main { min-width: 0; }
.lesson-header {
    margin-bottom: 40px;
}
.lesson-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 12px;
    background: var(--brand-50);
    color: var(--brand-700);
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 0.78rem;
    letter-spacing: 0.05em;
    margin-bottom: 14px;
}
.lesson-header h1 {
    background: linear-gradient(135deg, var(--slate-900) 0%, var(--brand-700) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 14px;
}
.lesson-header .lesson-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    max-width: 700px;
}
.lesson-progress {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-top: 24px;
    padding: 14px 18px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.lesson-progress .bar {
    flex: 1;
    height: 8px;
    background: var(--slate-100);
    border-radius: var(--radius-full);
    overflow: hidden;
}
.lesson-progress .bar-fill {
    height: 100%;
    background: var(--gradient-brand);
    transition: width var(--transition-slow);
    border-radius: var(--radius-full);
}
.lesson-progress .progress-text {
    font-size: 0.88rem;
    color: var(--text-muted);
    font-weight: 600;
    white-space: nowrap;
}

/* ---------- Section Block ---------- */
.section {
    margin-bottom: 56px;
    scroll-margin-top: 100px;
}
.section h2 {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 14px;
}
.section h2 .section-num {
    flex-shrink: 0;
    width: 38px; height: 38px;
    background: var(--gradient-brand);
    color: white;
    border-radius: 12px;
    display: grid;
    place-items: center;
    font-size: 1rem;
    font-weight: 800;
    box-shadow: var(--shadow-brand);
}
.section p { font-size: 1.05rem; line-height: 1.85; margin-bottom: 14px; }
.section h3 { margin: 28px 0 12px; }
.section ul, .section ol { margin: 14px 24px; }
.section li { margin-bottom: 8px; color: var(--text-muted); line-height: 1.75; }

/* ---------- Callouts ---------- */
.callout {
    display: flex;
    gap: 16px;
    padding: 20px 24px;
    border-radius: var(--radius-md);
    margin: 24px 0;
    border-right: 4px solid;
    background: var(--bg-card);
    border: 1px solid var(--border);
}
.callout-icon {
    flex-shrink: 0;
    width: 32px; height: 32px;
    border-radius: 8px;
    display: grid;
    place-items: center;
    font-size: 1.1rem;
}
.callout-body { flex: 1; }
.callout-title { font-weight: 700; margin-bottom: 4px; color: var(--text); }
.callout p { margin-bottom: 0; font-size: 0.97rem; }

.callout-tip {
    border-right-color: var(--brand-500);
    background: var(--brand-50);
    border-color: var(--brand-100);
}
.callout-tip .callout-icon { background: var(--brand-100); color: var(--brand-700); }

.callout-warning {
    border-right-color: var(--warning);
    background: var(--warning-light);
    border-color: #fde68a;
}
.callout-warning .callout-icon { background: #fef3c7; color: #92400e; }

.callout-success {
    border-right-color: var(--success);
    background: var(--success-light);
    border-color: #a7f3d0;
}
.callout-success .callout-icon { background: #a7f3d0; color: #065f46; }

.callout-info {
    border-right-color: var(--info);
    background: var(--info-light);
    border-color: #bfdbfe;
}
.callout-info .callout-icon { background: #bfdbfe; color: #1e40af; }

.callout-pro {
    border-right-color: var(--accent-pink);
    background: linear-gradient(135deg, #fdf2f8 0%, #fff 100%);
    border-color: #fbcfe8;
}
.callout-pro .callout-icon { background: #fbcfe8; color: #9d174d; }

/* ---------- Practice / Try It ---------- */
.practice-box {
    background: linear-gradient(135deg, #1e1b4b 0%, #312e81 50%, #4c1d95 100%);
    color: white;
    padding: 28px;
    border-radius: var(--radius-md);
    margin: 28px 0;
    position: relative;
    overflow: hidden;
}
.practice-box::before {
    content: '';
    position: absolute;
    top: -50px; left: -50px;
    width: 200px; height: 200px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.3) 0%, transparent 70%);
    pointer-events: none;
}
.practice-box h4 {
    color: white;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}
.practice-box .practice-tag {
    display: inline-block;
    background: rgba(255, 255, 255, 0.15);
    color: white;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    margin-bottom: 12px;
    text-transform: uppercase;
}
.practice-box p { color: rgba(255, 255, 255, 0.9); margin-bottom: 12px; }
.practice-box code {
    background: rgba(255, 255, 255, 0.12);
    color: #fbcfe8;
    padding: 4px 9px;
}
.practice-box .practice-prompt {
    background: rgba(0, 0, 0, 0.35);
    padding: 16px 20px;
    border-radius: var(--radius);
    margin-top: 14px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.92rem;
    line-height: 1.7;
    direction: rtl;
}

/* ---------- Comparison Cards ---------- */
.compare-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
    margin: 24px 0;
}
.compare-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 22px;
    transition: all var(--transition);
}
.compare-card:hover { border-color: var(--brand-200); transform: translateY(-2px); }
.compare-card .compare-icon {
    width: 44px; height: 44px;
    border-radius: 12px;
    display: grid;
    place-items: center;
    font-size: 1.4rem;
    margin-bottom: 14px;
}
.compare-card.icon-blue .compare-icon { background: var(--info-light); color: var(--info); }
.compare-card.icon-purple .compare-icon { background: #ede9fe; color: var(--accent-purple); }
.compare-card.icon-pink .compare-icon { background: #fce7f3; color: var(--accent-pink); }
.compare-card.icon-green .compare-icon { background: var(--success-light); color: var(--success); }
.compare-card.icon-orange .compare-icon { background: #ffedd5; color: var(--accent-orange); }
.compare-card h4 { margin-bottom: 8px; }
.compare-card p { font-size: 0.92rem; color: var(--text-muted); margin: 0; }

/* ---------- Steps ---------- */
.steps {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin: 28px 0;
}
.step {
    display: flex;
    gap: 18px;
    padding: 22px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all var(--transition);
}
.step:hover { border-color: var(--brand-200); box-shadow: var(--shadow); }
.step-number {
    flex-shrink: 0;
    width: 40px; height: 40px;
    background: var(--gradient-brand);
    color: white;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-weight: 800;
    font-size: 1.05rem;
    box-shadow: var(--shadow-brand);
}
.step-body h4 { margin-bottom: 6px; }
.step-body p { margin: 0; font-size: 0.96rem; }

/* ---------- Quiz ---------- */
.quiz-section {
    background: linear-gradient(135deg, #faf5ff 0%, #fdf2f8 100%);
    border: 2px solid var(--brand-200);
    border-radius: var(--radius-lg);
    padding: 36px;
    margin: 56px 0 0;
    position: relative;
}
.quiz-header {
    text-align: center;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px dashed var(--brand-200);
}
.quiz-header .quiz-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--gradient-brand);
    color: white;
    padding: 8px 18px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 14px;
    box-shadow: var(--shadow-brand);
}
.quiz-header h2 {
    margin-bottom: 8px;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.quiz-question {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 24px 26px;
    margin-bottom: 18px;
    transition: all var(--transition);
}
.quiz-question.answered { border-color: var(--brand-300); }
.quiz-q-header {
    display: flex;
    align-items: start;
    gap: 12px;
    margin-bottom: 18px;
}
.quiz-q-num {
    flex-shrink: 0;
    background: var(--brand-100);
    color: var(--brand-700);
    width: 30px; height: 30px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-weight: 800;
    font-size: 0.85rem;
}
.quiz-q-text {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1.6;
}
.quiz-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.quiz-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    background: var(--slate-50);
    border: 2px solid transparent;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: right;
    width: 100%;
    font-size: 0.97rem;
    color: var(--text);
}
.quiz-option:hover {
    background: var(--brand-50);
    border-color: var(--brand-200);
}
.quiz-option .opt-letter {
    flex-shrink: 0;
    width: 26px; height: 26px;
    border: 2px solid var(--border-strong);
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-subtle);
    transition: all var(--transition-fast);
}
.quiz-option.selected {
    background: var(--brand-50);
    border-color: var(--brand-500);
}
.quiz-option.selected .opt-letter {
    background: var(--brand-500);
    color: white;
    border-color: var(--brand-500);
}
.quiz-option.correct {
    background: var(--success-light);
    border-color: var(--success);
    color: #064e3b;
}
.quiz-option.correct .opt-letter {
    background: var(--success);
    color: white;
    border-color: var(--success);
}
.quiz-option.incorrect {
    background: var(--danger-light);
    border-color: var(--danger);
    color: #7f1d1d;
}
.quiz-option.incorrect .opt-letter {
    background: var(--danger);
    color: white;
    border-color: var(--danger);
}
.quiz-option:disabled { cursor: not-allowed; }
.quiz-explanation {
    margin-top: 14px;
    padding: 14px 18px;
    background: var(--brand-50);
    border-right: 3px solid var(--brand-500);
    border-radius: 8px;
    font-size: 0.93rem;
    color: var(--text-muted);
    display: none;
}
.quiz-explanation.show { display: block; }
.quiz-explanation b { color: var(--text); }

.quiz-submit {
    margin-top: 26px;
    text-align: center;
}
.quiz-result {
    margin-top: 28px;
    padding: 28px;
    background: white;
    border-radius: var(--radius-md);
    border: 2px solid var(--border);
    text-align: center;
    display: none;
}
.quiz-result.show { display: block; }
.quiz-result.passed { border-color: var(--success); background: linear-gradient(135deg, #ecfdf5 0%, #fff 100%); }
.quiz-result.failed { border-color: var(--warning); background: linear-gradient(135deg, #fffbeb 0%, #fff 100%); }
.quiz-result-icon {
    width: 70px; height: 70px;
    margin: 0 auto 16px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-size: 2rem;
}
.quiz-result.passed .quiz-result-icon { background: var(--success-light); color: var(--success); }
.quiz-result.failed .quiz-result-icon { background: var(--warning-light); color: var(--warning); }
.quiz-result h3 { margin-bottom: 8px; }
.quiz-result .quiz-score {
    font-size: 2.5rem;
    font-weight: 800;
    margin: 12px 0;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.quiz-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-top: 22px;
    flex-wrap: wrap;
}

/* ---------- Bottom Navigation (lesson) ---------- */
.lesson-nav {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    margin-top: 50px;
    padding-top: 28px;
    border-top: 1px solid var(--border);
}
.lesson-nav-btn {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 16px 22px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-decoration: none;
    color: inherit;
    transition: all var(--transition);
    flex: 1;
    max-width: 280px;
}
.lesson-nav-btn:hover {
    border-color: var(--brand-300);
    box-shadow: var(--shadow);
    transform: translateY(-1px);
}
.lesson-nav-btn .nav-direction {
    font-size: 0.78rem;
    color: var(--text-subtle);
    font-weight: 600;
}
.lesson-nav-btn .nav-title {
    font-weight: 700;
    color: var(--text);
}
.lesson-nav-btn.next { text-align: left; }
.lesson-nav-btn.prev { text-align: right; }
.lesson-nav-btn.disabled { opacity: 0.4; pointer-events: none; }

/* ---------- Footer ---------- */
.footer {
    border-top: 1px solid var(--border);
    padding: 32px 0;
    margin-top: 60px;
    text-align: center;
    color: var(--text-subtle);
    font-size: 0.88rem;
}
.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--brand-700);
    font-weight: 700;
    margin-bottom: 8px;
}

/* ---------- Modal (Certificate) ---------- */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(6px);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
    z-index: 100;
    animation: fadeIn 0.3s ease;
}
.modal-backdrop.show { display: flex; }
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
.modal {
    background: white;
    border-radius: var(--radius-lg);
    padding: 36px;
    max-width: 540px;
    width: 100%;
    box-shadow: var(--shadow-xl);
    animation: scaleIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
@keyframes scaleIn {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

/* ---------- Animations ---------- */
.fade-in {
    animation: fadeUp 0.6s ease backwards;
}
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}
.day-card { animation: fadeUp 0.6s ease backwards; }
.day-card:nth-child(1) { animation-delay: 0.05s; }
.day-card:nth-child(2) { animation-delay: 0.1s; }
.day-card:nth-child(3) { animation-delay: 0.15s; }
.day-card:nth-child(4) { animation-delay: 0.2s; }
.day-card:nth-child(5) { animation-delay: 0.25s; }
.day-card:nth-child(6) { animation-delay: 0.3s; }
.day-card:nth-child(7) { animation-delay: 0.35s; }

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
    .container, .container-narrow { padding: 0 18px; }
    .hero { padding: 50px 0 40px; }
    .hero h1 { font-size: 2.2rem; }
    .hero-stats { gap: 24px; }
    .stat-item .stat-num { font-size: 1.6rem; }
    .day-card { padding: 22px; }
    .quiz-section { padding: 22px; }
    .lesson-nav { flex-direction: column; }
    .lesson-nav-btn { max-width: none; }
    .topbar-actions .progress-pill { display: none; }
}

/* ---------- Helpers ---------- */
.text-center { text-align: center; }
.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.gap-2 { gap: 12px; }
.gap-3 { gap: 18px; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }

/* ============================================
   NEW COMPONENTS — Course Depth Components
   ============================================ */

/* ---------- Watermark (anti-share) ---------- */
.user-watermark {
    position: fixed; bottom: 18px; left: 18px;
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid rgba(99, 102, 241, 0.15);
    border-radius: 999px;
    padding: 6px 14px;
    font-size: 0.75rem;
    color: var(--brand-700);
    z-index: 30;
    pointer-events: none;
    backdrop-filter: blur(8px);
    direction: ltr;
    font-family: 'JetBrains Mono', monospace;
}
.diagonal-watermark {
    position: fixed; inset: 0;
    pointer-events: none; z-index: 1;
    background-image: repeating-linear-gradient(
        -45deg,
        transparent 0,
        transparent 200px,
        rgba(99, 102, 241, 0.03) 200px,
        rgba(99, 102, 241, 0.03) 400px
    );
}
.diagonal-watermark::before {
    content: attr(data-text);
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%) rotate(-30deg);
    font-size: 4rem;
    font-weight: 800;
    color: rgba(99, 102, 241, 0.05);
    white-space: nowrap;
    font-family: 'Heebo', sans-serif;
}

/* ---------- License Modal ---------- */
.license-overlay {
    position: fixed; inset: 0;
    background: linear-gradient(135deg, #1e1b4b 0%, #4c1d95 50%, #831843 100%);
    z-index: 9999;
    display: grid; place-items: center;
    padding: 24px;
}
.license-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 40px;
    max-width: 460px;
    width: 100%;
    box-shadow: var(--shadow-xl);
    text-align: center;
}
.license-card h2 {
    margin-bottom: 8px;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.license-card .lead { margin-bottom: 24px; font-size: 0.95rem; }
.license-form { display: flex; flex-direction: column; gap: 14px; text-align: right; }
.license-form label {
    font-size: 0.85rem; font-weight: 700; color: var(--text);
}
.license-form input {
    padding: 13px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem; font-family: inherit;
    direction: rtl;
}
.license-form input:focus { outline: none; border-color: var(--brand-500); }
.license-form input.invalid { border-color: var(--danger); background: var(--danger-light); }
.license-error {
    background: var(--danger-light); color: #7f1d1d;
    padding: 10px 14px; border-radius: 8px;
    font-size: 0.88rem; display: none; text-align: center;
}
.license-error.show { display: block; }
.license-card .btn-primary { width: 100%; justify-content: center; padding: 14px; }
.license-card .help {
    font-size: 0.82rem; color: var(--text-subtle); margin-top: 18px;
    padding-top: 16px; border-top: 1px solid var(--border);
}
.license-card .help a { color: var(--brand-700); font-weight: 600; }

/* ---------- Warmup Exercise ---------- */
.warmup {
    background: linear-gradient(135deg, #fef3c7 0%, #fffbeb 100%);
    border: 2px solid #fde68a;
    border-radius: var(--radius-md);
    padding: 28px 30px;
    margin: 30px 0 40px;
}
.warmup-header {
    display: flex; align-items: center; gap: 12px; margin-bottom: 14px;
}
.warmup-icon {
    width: 40px; height: 40px;
    background: #f59e0b; color: white;
    border-radius: 50%;
    display: grid; place-items: center;
    font-size: 1.2rem; flex-shrink: 0;
}
.warmup-tag {
    background: white; color: #92400e;
    padding: 3px 11px; border-radius: 999px;
    font-size: 0.72rem; font-weight: 800;
    letter-spacing: 0.06em; text-transform: uppercase;
    margin-bottom: 4px; display: inline-block;
}
.warmup h3 { color: #78350f; margin-bottom: 8px; }
.warmup p { color: #78350f; font-size: 0.97rem; }
.warmup-input {
    width: 100%; min-height: 100px; margin-top: 14px;
    padding: 14px 16px; border: 1.5px solid #fde68a;
    border-radius: 10px; font-size: 0.95rem;
    font-family: inherit; direction: rtl; resize: vertical;
    background: white;
}
.warmup-input:focus { outline: none; border-color: #f59e0b; }

/* ---------- Video Player Component ---------- */
.video-block {
    background: #0f172a;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin: 24px 0;
    box-shadow: var(--shadow-lg);
    position: relative;
}
.video-frame {
    aspect-ratio: 16 / 9;
    background: linear-gradient(135deg, #1e1b4b 0%, #312e81 50%, #4c1d95 100%);
    display: grid; place-items: center;
    position: relative;
    cursor: pointer;
}
.video-frame::before {
    content: '';
    position: absolute; inset: 0;
    background-image:
        radial-gradient(at 20% 30%, rgba(236,72,153,0.2) 0px, transparent 50%),
        radial-gradient(at 80% 70%, rgba(99,102,241,0.3) 0px, transparent 50%);
}
.video-play-btn {
    width: 84px; height: 84px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 50%;
    display: grid; place-items: center;
    box-shadow: 0 20px 50px rgba(0,0,0,0.4);
    z-index: 2;
    transition: transform 250ms;
}
.video-frame:hover .video-play-btn { transform: scale(1.08); }
.video-play-btn::after {
    content: '';
    width: 0; height: 0;
    border-top: 16px solid transparent;
    border-bottom: 16px solid transparent;
    border-right: 24px solid var(--brand-700);
    margin-right: -4px;
}
.video-meta {
    padding: 16px 20px;
    background: white;
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 10px;
    font-size: 0.88rem;
}
.video-title { font-weight: 700; color: var(--text); }
.video-duration {
    background: var(--brand-50); color: var(--brand-700);
    padding: 4px 10px; border-radius: 999px;
    font-weight: 700; font-size: 0.78rem;
}
.video-placeholder-note {
    background: var(--warning-light);
    border-right: 3px solid var(--warning);
    padding: 12px 16px;
    margin: 12px 0 0;
    border-radius: 8px;
    font-size: 0.85rem;
    color: #78350f;
}

/* ---------- Hands-On Exercise ---------- */
.exercise {
    background: linear-gradient(135deg, #ecfdf5 0%, #f0fdf4 100%);
    border: 2px solid #6ee7b7;
    border-radius: var(--radius-md);
    padding: 30px 32px;
    margin: 32px 0;
    position: relative;
    overflow: hidden;
}
.exercise::before {
    content: '';
    position: absolute; top: -40px; right: -40px;
    width: 160px; height: 160px;
    background: radial-gradient(circle, rgba(16,185,129,0.15) 0%, transparent 70%);
}
.exercise-header {
    display: flex; align-items: center; gap: 14px;
    margin-bottom: 18px; position: relative;
}
.exercise-num {
    flex-shrink: 0;
    width: 48px; height: 48px;
    background: var(--gradient-success);
    color: white; border-radius: 12px;
    display: grid; place-items: center;
    font-weight: 900; font-size: 1.2rem;
    box-shadow: 0 10px 25px rgba(16,185,129,0.3);
}
.exercise-tag {
    background: var(--success); color: white;
    padding: 3px 11px; border-radius: 999px;
    font-size: 0.72rem; font-weight: 800;
    letter-spacing: 0.06em; text-transform: uppercase;
}
.exercise h3 { color: #065f46; margin: 4px 0 6px; }
.exercise-time {
    display: inline-flex; align-items: center; gap: 6px;
    color: #065f46; font-size: 0.85rem; font-weight: 600;
    margin-bottom: 12px;
}
.exercise-goal {
    background: white;
    padding: 14px 18px;
    border-radius: 10px;
    border-right: 3px solid var(--success);
    margin: 14px 0;
}
.exercise-goal b { color: #065f46; }
.exercise-prompt-block {
    background: #064e3b;
    color: white;
    padding: 18px 22px;
    border-radius: 10px;
    position: relative;
    margin: 16px 0;
}
.exercise-prompt-block::before {
    content: 'הפרומפט להעתקה';
    position: absolute;
    top: -10px; right: 16px;
    background: var(--success); color: white;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 0.7rem; font-weight: 700;
    letter-spacing: 0.05em;
}
.exercise-prompt-block pre {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.92rem;
    line-height: 1.7;
    direction: rtl;
    white-space: pre-wrap;
    margin-top: 8px;
    color: #d1fae5;
}
.exercise-copy-btn {
    margin-top: 12px;
    padding: 6px 12px;
    background: rgba(255,255,255,0.15);
    color: white;
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 6px;
    font-size: 0.82rem;
    cursor: pointer;
    font-family: inherit;
    transition: all 200ms;
}
.exercise-copy-btn:hover { background: rgba(255,255,255,0.25); }
.exercise-copy-btn.copied { background: var(--success); border-color: var(--success); }
.exercise-expected {
    background: white;
    padding: 14px 18px;
    border-radius: 10px;
    margin-top: 14px;
    font-size: 0.93rem;
    color: var(--text-muted);
}
.exercise-expected b { color: #065f46; }
.exercise-checklist {
    list-style: none;
    margin: 12px 0 0;
    padding: 0;
}
.exercise-checklist li {
    padding: 8px 0 8px 26px;
    position: relative;
    font-size: 0.92rem;
    color: var(--text-muted);
}
.exercise-checklist li::before {
    content: '☐';
    position: absolute;
    right: 0; top: 6px;
    color: var(--success);
    font-size: 1.2rem;
    font-weight: 700;
}

/* ---------- Case Study ---------- */
.case-study {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin: 32px 0;
    box-shadow: var(--shadow);
}
.case-study-header {
    background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
    color: white;
    padding: 24px 28px;
}
.case-study-tag {
    display: inline-block;
    background: rgba(255,255,255,0.15);
    color: white;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    margin-bottom: 10px;
}
.case-study-header h3 { color: white; font-size: 1.4rem; margin: 0; }
.case-study-meta {
    display: flex; gap: 18px; margin-top: 12px;
    font-size: 0.85rem; opacity: 0.85;
    flex-wrap: wrap;
}
.case-study-body { padding: 28px; }
.case-study-body h4 {
    margin: 20px 0 8px;
    color: var(--brand-700);
}
.case-study-body h4:first-child { margin-top: 0; }
.case-study-body p { font-size: 0.97rem; }
.case-study-timeline {
    margin: 20px 0;
    padding-right: 24px;
    position: relative;
}
.case-study-timeline::before {
    content: '';
    position: absolute;
    right: 8px; top: 4px; bottom: 4px;
    width: 2px;
    background: var(--brand-200);
}
.case-study-timeline .step {
    position: relative;
    padding: 4px 0 16px;
}
.case-study-timeline .step::before {
    content: '';
    position: absolute;
    right: -22px; top: 8px;
    width: 12px; height: 12px;
    border-radius: 50%;
    background: var(--brand-500);
    box-shadow: 0 0 0 4px white;
}
.case-study-timeline .step b {
    display: block;
    color: var(--text);
    font-size: 0.95rem;
    margin-bottom: 4px;
}
.case-study-timeline .step span {
    color: var(--text-muted);
    font-size: 0.9rem;
}
.case-study-result {
    background: var(--success-light);
    border-radius: 10px;
    padding: 16px 20px;
    margin-top: 18px;
    border-right: 3px solid var(--success);
}
.case-study-result b { color: #065f46; }

/* ---------- Workbook Card ---------- */
.workbook-card {
    background: linear-gradient(135deg, #faf5ff 0%, #fdf2f8 100%);
    border: 2px solid #e9d5ff;
    border-radius: var(--radius-md);
    padding: 24px 28px;
    margin: 28px 0;
    display: flex;
    gap: 20px;
    align-items: center;
    flex-wrap: wrap;
}
.workbook-icon {
    flex-shrink: 0;
    width: 60px; height: 60px;
    background: var(--gradient-brand);
    color: white;
    border-radius: 14px;
    display: grid; place-items: center;
    font-size: 1.6rem;
    box-shadow: var(--shadow-brand);
}
.workbook-body { flex: 1; min-width: 220px; }
.workbook-tag {
    display: inline-block;
    background: white;
    color: var(--accent-purple);
    padding: 3px 11px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    margin-bottom: 6px;
}
.workbook-body h4 { margin-bottom: 4px; }
.workbook-body p { margin: 0; font-size: 0.92rem; }
.workbook-actions {
    flex-shrink: 0;
    display: flex; gap: 8px;
    flex-wrap: wrap;
}

/* ---------- Bonus Challenge ---------- */
.bonus {
    background: linear-gradient(135deg, #1e1b4b 0%, #4c1d95 50%, #831843 100%);
    color: white;
    border-radius: var(--radius-md);
    padding: 30px 32px;
    margin: 32px 0;
    position: relative;
    overflow: hidden;
}
.bonus::before {
    content: '';
    position: absolute;
    top: -60px; right: -60px;
    width: 200px; height: 200px;
    background: radial-gradient(circle, rgba(236,72,153,0.3) 0%, transparent 70%);
}
.bonus-header {
    display: flex; align-items: center; gap: 14px;
    position: relative; margin-bottom: 14px;
}
.bonus-icon {
    flex-shrink: 0;
    width: 48px; height: 48px;
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 12px;
    display: grid; place-items: center;
    font-size: 1.4rem;
}
.bonus-tag {
    background: rgba(236,72,153,0.3);
    color: #fbcfe8;
    padding: 3px 11px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}
.bonus h3 { color: white; margin: 4px 0; }
.bonus p { color: rgba(255,255,255,0.92); }
.bonus-task {
    background: rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 10px;
    padding: 16px 20px;
    margin: 14px 0;
}
.bonus-task pre {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.92rem;
    line-height: 1.7;
    direction: rtl;
    color: #fbcfe8;
    white-space: pre-wrap;
}

/* ---------- Reflection ---------- */
.reflection {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-right: 4px solid var(--brand-500);
    border-radius: var(--radius);
    padding: 24px 28px;
    margin: 32px 0;
}
.reflection-header {
    display: flex; align-items: center; gap: 12px; margin-bottom: 14px;
}
.reflection-icon {
    width: 36px; height: 36px;
    background: var(--brand-50);
    color: var(--brand-700);
    border-radius: 10px;
    display: grid; place-items: center;
    font-size: 1.1rem;
}
.reflection-tag {
    background: var(--brand-50);
    color: var(--brand-700);
    padding: 3px 11px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.06em;
}
.reflection-questions {
    margin: 14px 0;
    list-style: none;
    padding: 0;
}
.reflection-questions li {
    padding: 14px 0;
    border-bottom: 1px dashed var(--border);
    counter-increment: ref-counter;
    position: relative;
    padding-right: 36px;
}
.reflection-questions li:last-child { border-bottom: none; }
.reflection-questions li::before {
    content: counter(ref-counter);
    position: absolute;
    right: 0; top: 14px;
    width: 26px; height: 26px;
    background: var(--brand-100);
    color: var(--brand-700);
    border-radius: 50%;
    display: grid; place-items: center;
    font-size: 0.78rem; font-weight: 800;
}
.reflection-questions {
    counter-reset: ref-counter;
}
.reflection-questions li b {
    display: block;
    color: var(--text);
    margin-bottom: 6px;
    font-size: 0.97rem;
}
.reflection-questions li textarea {
    width: 100%; min-height: 70px;
    padding: 12px 14px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-size: 0.92rem;
    font-family: inherit;
    direction: rtl;
    resize: vertical;
    background: var(--bg);
}
.reflection-questions li textarea:focus {
    outline: none; border-color: var(--brand-300);
}
.reflection-share {
    background: var(--brand-50);
    border-radius: 10px;
    padding: 14px 18px;
    margin-top: 16px;
    font-size: 0.92rem;
}
.reflection-share b { color: var(--brand-700); }

/* ---------- Lesson Time Bar (top of day) ---------- */
.lesson-time-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 12px;
    margin: 24px 0 8px;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.time-block {
    text-align: center;
    padding: 6px;
}
.time-block .num {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--brand-700);
}
.time-block .label {
    font-size: 0.78rem;
    color: var(--text-subtle);
    margin-top: 2px;
}
.time-block.total {
    background: var(--gradient-soft);
    border-radius: 8px;
}
.time-block.total .num { color: var(--brand-700); font-size: 1.5rem; }

/* ---------- Anti-share helpers ---------- */
body.anti-share {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}
body.anti-share .exercise-prompt-block,
body.anti-share .bonus-task,
body.anti-share .practice-prompt {
    -webkit-user-select: text;
    user-select: text;
}

/* ============================================
   Welcome Splash (one-time language picker)
   ============================================ */
.welcome-splash {
    position: fixed; inset: 0;
    z-index: 10000;
    background: linear-gradient(135deg, #1e1b4b 0%, #312e81 30%, #4c1d95 60%, #831843 100%);
    display: grid; place-items: center;
    padding: 24px;
    animation: welcomeFadeIn 400ms ease;
    overflow: auto;
}
.welcome-splash.closing {
    animation: welcomeFadeOut 300ms ease forwards;
}
@keyframes welcomeFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes welcomeFadeOut {
    to { opacity: 0; transform: scale(0.95); }
}
.welcome-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 24px;
    padding: 50px 40px;
    max-width: 600px;
    width: 100%;
    text-align: center;
    backdrop-filter: blur(30px);
    box-shadow: 0 30px 80px rgba(0,0,0,0.5);
    animation: welcomeSlideUp 600ms cubic-bezier(0.16, 1, 0.3, 1) backwards 100ms;
}
@keyframes welcomeSlideUp {
    from { transform: translateY(40px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}
.welcome-logo {
    width: 80px; height: 80px;
    margin: 0 auto 28px;
    border-radius: 20px;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
    display: grid; place-items: center;
    color: white;
    font-weight: 900;
    font-size: 2.5rem;
    box-shadow: 0 20px 50px rgba(99,102,241,0.5);
}
.welcome-title {
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    font-weight: 800;
    color: white;
    line-height: 1.2;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}
.welcome-title .welcome-en,
.welcome-title .welcome-he {
    background: linear-gradient(135deg, white 0%, #fbcfe8 100%);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
}
.welcome-title .welcome-divider {
    color: rgba(255,255,255,0.3);
    font-weight: 300;
}
.welcome-sub {
    color: rgba(255,255,255,0.8);
    font-size: 1.05rem;
    margin-bottom: 36px;
    line-height: 1.7;
}
.welcome-sub .he, .welcome-sub .en {
    display: block;
}
.welcome-sub .en + .he {
    margin-top: 4px;
    font-size: 0.95rem;
    opacity: 0.7;
}
.welcome-langs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 14px;
    margin-bottom: 28px;
}
.welcome-lang-btn {
    position: relative;
    background: rgba(255,255,255,0.07);
    border: 1.5px solid rgba(255,255,255,0.15);
    border-radius: 14px;
    padding: 22px 18px;
    color: white;
    cursor: pointer;
    font-family: 'Heebo', sans-serif;
    transition: all 250ms cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}
.welcome-lang-btn:hover {
    background: rgba(255,255,255,0.12);
    border-color: rgba(251,191,36,0.5);
    transform: translateY(-3px);
    box-shadow: 0 14px 35px rgba(0,0,0,0.3);
}
.welcome-lang-btn.suggested {
    border-color: rgba(251,191,36,0.6);
    background: linear-gradient(135deg, rgba(251,191,36,0.1), rgba(236,72,153,0.1));
}
.suggested-tag {
    position: absolute;
    top: -10px; left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    color: #78350f;
    padding: 3px 12px;
    border-radius: 999px;
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    white-space: nowrap;
}
.welcome-flag {
    font-size: 2.4rem;
    line-height: 1;
}
.welcome-native {
    font-size: 1.1rem;
    font-weight: 700;
}
.welcome-name-en {
    font-size: 0.78rem;
    color: rgba(255,255,255,0.55);
    font-weight: 500;
    letter-spacing: 0.04em;
}
.welcome-footer {
    color: rgba(255,255,255,0.45);
    font-size: 0.82rem;
}
.welcome-footer .en, .welcome-footer .he {
    display: inline-block;
    margin: 0 4px;
}

/* ============================================
   Gender Splash (Hebrew only — pick grammatical form)
   ============================================ */
.gender-splash .welcome-card { max-width: 580px; }
.gender-emoji {
    font-size: 3rem;
    margin-bottom: 18px;
    line-height: 1;
    filter: drop-shadow(0 8px 20px rgba(236,72,153,0.3));
}
.gender-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin: 24px 0 18px;
}
@media (max-width: 600px) {
    .gender-options { grid-template-columns: 1fr; }
}
.gender-btn {
    background: rgba(255,255,255,0.07);
    border: 1.5px solid rgba(255,255,255,0.15);
    border-radius: 14px;
    padding: 22px 14px;
    color: white;
    cursor: pointer;
    font-family: 'Heebo', sans-serif;
    transition: all 250ms cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    text-align: center;
}
.gender-btn:hover {
    background: rgba(251,191,36,0.1);
    border-color: rgba(251,191,36,0.5);
    transform: translateY(-3px);
    box-shadow: 0 14px 30px rgba(0,0,0,0.3);
}
.gender-label {
    font-size: 1.05rem;
    font-weight: 700;
    color: white;
}
.gender-example {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.65);
    line-height: 1.6;
    direction: rtl;
}
.gender-skip {
    background: transparent;
    border: none;
    color: rgba(255,255,255,0.55);
    font-family: 'Heebo', sans-serif;
    font-size: 0.88rem;
    cursor: pointer;
    margin: 8px auto 14px;
    padding: 8px 16px;
    border-radius: 8px;
    transition: color 200ms;
}
.gender-skip:hover {
    color: rgba(255,255,255,0.9);
    background: rgba(255,255,255,0.05);
}

/* Footer gender control */
.footer-gender-trigger {
    background: transparent;
    border: none;
    font-family: inherit;
    font-size: inherit;
    color: var(--brand-700);
    cursor: pointer;
    padding: 0;
    font-weight: 600;
    transition: color var(--transition-fast);
}
.footer-gender-trigger:hover {
    color: var(--brand-500);
    text-decoration: underline;
}

/* ============================================
   Footer Language Link (subtle, ongoing)
   ============================================ */
.footer-lang-link {
    position: fixed;
    bottom: 14px;
    z-index: 90;
    background: rgba(255,255,255,0.92);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    padding: 7px 14px;
    font-family: 'Heebo', sans-serif;
    font-size: 0.82rem;
    color: var(--text-muted);
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: opacity var(--transition);
    opacity: 0.7;
}
.footer-lang-link:hover { opacity: 1; }
body.dir-rtl .footer-lang-link { left: 14px; right: auto; }
body.dir-ltr .footer-lang-link { right: 14px; left: auto; }
.footer-lang-icon {
    font-size: 0.95rem;
    opacity: 0.6;
}
.footer-lang-current {
    font-weight: 700;
    color: var(--text);
}
.footer-lang-divider {
    color: var(--slate-300);
}
.footer-lang-switch {
    background: transparent;
    border: none;
    font-family: inherit;
    font-size: inherit;
    color: var(--brand-700);
    cursor: pointer;
    padding: 0;
    font-weight: 600;
    transition: color var(--transition-fast);
}
.footer-lang-switch:hover { color: var(--brand-500); text-decoration: underline; }

/* ============================================
   Coming Soon Modal (gracious untranslated UX)
   ============================================ */
.coming-soon-modal {
    position: fixed; inset: 0;
    z-index: 9999;
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(8px);
    display: grid; place-items: center;
    padding: 24px;
    animation: welcomeFadeIn 300ms ease;
}
.coming-soon-card {
    background: white;
    border-radius: 20px;
    padding: 48px 42px;
    max-width: 500px;
    width: 100%;
    text-align: center;
    box-shadow: 0 30px 80px rgba(0,0,0,0.4);
    animation: welcomeSlideUp 400ms cubic-bezier(0.16, 1, 0.3, 1) backwards 100ms;
}
.coming-soon-icon {
    font-size: 3.5rem;
    margin-bottom: 16px;
    line-height: 1;
}
.coming-soon-card h2 {
    color: var(--text);
    margin-bottom: 14px;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 1.5rem;
    line-height: 1.3;
}
.coming-soon-card p {
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 28px;
}
.coming-soon-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}
.coming-soon-actions .btn {
    flex: 1;
    min-width: 160px;
    justify-content: center;
}

/* ============================================
   LTR Direction Overrides
   When language is English (LTR), some RTL-specific styles need flipping.
   ============================================ */
body.dir-ltr {
    text-align: left;
}
body.dir-ltr .toc-list a {
    border-right: 3px solid transparent;
    border-left: 0;
}
body.dir-ltr .toc-list a.active {
    border-right-color: transparent;
    border-left: 3px solid var(--brand-500);
}
body.dir-ltr .callout {
    border-right: 0;
    border-left: 4px solid;
}
body.dir-ltr .callout-tip { border-left-color: var(--brand-500); }
body.dir-ltr .callout-warning { border-left-color: var(--warning); }
body.dir-ltr .callout-success { border-left-color: var(--success); }
body.dir-ltr .callout-info { border-left-color: var(--info); }
body.dir-ltr .callout-pro { border-left-color: var(--accent-pink); }
body.dir-ltr .reflection {
    border-right: 1px solid var(--border);
    border-left: 4px solid var(--brand-500);
}
body.dir-ltr .case-study-result {
    border-right: 0;
    border-left: 3px solid var(--success);
}
body.dir-ltr .exercise-prompt-block::before,
body.dir-ltr .exercise-prompt-block {
    direction: ltr;
}
body.dir-ltr .exercise-prompt-block pre,
body.dir-ltr .bonus-task pre,
body.dir-ltr .practice-prompt {
    direction: ltr;
    text-align: left;
}
body.dir-ltr .day-cta { transform: none; }
body.dir-ltr .day-card:hover .day-cta { transform: translateX(4px); }
body.dir-ltr .case-study-timeline { padding-right: 0; padding-left: 24px; }
body.dir-ltr .case-study-timeline::before { right: auto; left: 8px; }
body.dir-ltr .case-study-timeline .step::before { right: auto; left: -22px; }
body.dir-ltr .timeline { padding-right: 0; padding-left: 30px; }
body.dir-ltr .timeline::before { right: auto; left: 12px; }
body.dir-ltr .timeline-week::before { right: auto; left: -23px; }
body.dir-ltr .reflection-questions li { padding-right: 0; padding-left: 36px; }
body.dir-ltr .reflection-questions li::before { right: auto; left: 0; }
body.dir-ltr .exercise-checklist li { padding-right: 0; padding-left: 26px; }
body.dir-ltr .exercise-checklist li::before { right: auto; left: 0; }
body.dir-ltr .tier li { padding-right: 0; padding-left: 24px; }
body.dir-ltr .tier li::before { right: auto; left: 0; }
body.dir-ltr .user-watermark {
    bottom: 18px; right: auto; left: 18px;
}

/* ---------- Print ---------- */
@media print {
    .topbar, .lesson-sidebar, .lesson-nav, .footer { display: none; }
    .lesson-shell { grid-template-columns: 1fr; padding: 0; }
    .license-overlay, .user-watermark, .diagonal-watermark,
    .welcome-splash, .footer-lang-link, .coming-soon-modal { display: none !important; }
}