/* ===========================================
   COURSE PAGES - Sleek Mobile App Style
   =========================================== */

/* ===========================================
   ICON REFERENCE (Font Awesome 4.7)
   ===========================================

   СЕКЦИИ:
   - Основа модуля:     fa-list-ol      (нумерованный список)
   - Дополнительно:     fa-star-o       (звёздочка, бонусный контент)

   ОСНОВНЫЕ КАРТОЧКИ (по модулям):
   - Модуль 1 (Уроки):      fa-book
   - Модуль 2 (Уроки A1):   fa-graduation-cap
   - Модуль 3 (Учебные тексты): fa-file-text
   - Модуль 4 (Грамматика): fa-cogs

   ДОПОЛНИТЕЛЬНЫЕ КАРТОЧКИ:
   - Диалоги:           fa-comments
   - Грамматика:        fa-book
   - Слова/Лексика:     fa-language
   - Тесты:             fa-tasks
   - Практический:      fa-users

   НАВИГАЦИЯ:
   - Стрелка вправо:    fa-arrow-right
   - Стрелка назад:     fa-chevron-left
   - Домой:             fa-home

   =========================================== */

/* Google Font - Playfair Display для заголовков */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700&display=swap');

:root {
    /* Module colors */
    --module-1-primary: #22c55e;
    --module-1-light: #dcfce7;
    --module-1-gradient: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);

    --module-2-primary: #3b82f6;
    --module-2-light: #dbeafe;
    --module-2-gradient: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);

    --module-3-primary: #f97316;
    --module-3-light: #ffedd5;
    --module-3-gradient: linear-gradient(135deg, #f97316 0%, #ea580c 100%);

    --module-4-primary: #ec4899;
    --module-4-light: #fce7f3;
    --module-4-gradient: linear-gradient(135deg, #ec4899 0%, #db2777 100%);

    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1.25rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 2.5rem;

    /* Border radius */
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
}

/* ===========================================
   Course Page Container
   =========================================== */
.course-page {
    background: #fafafa;
    min-height: 100vh;
    padding-bottom: var(--space-2xl);
}

.course-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* ===========================================
   Breadcrumb - minimal style
   =========================================== */
.course-breadcrumb {
    padding: var(--space-md) 0;
}

.course-breadcrumb a {
    color: #64748b;
    text-decoration: none;
    font-size: 14px;
    font-family: var(--font-body);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: color 0.2s;
}

.course-breadcrumb a:hover {
    color: #334155;
}

.course-breadcrumb a svg {
    width: 16px;
    height: 16px;
}

/* ===========================================
   Hero Section
   =========================================== */
.course-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    align-items: center;
    padding: 0 var(--space-lg) 0 0;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
}

.module-1 .course-hero { background: var(--module-1-light); }
.module-2 .course-hero { background: var(--module-2-light); }
.module-3 .course-hero { background: var(--module-3-light); }
.module-4 .course-hero { background: var(--module-4-light); }

.course-hero-content {
    order: 2;
    padding: var(--space-lg) 0;
}

.course-hero-illustration {
    order: 1;
    margin: 0;
    align-self: stretch;
    display: flex;
}

.course-hero-illustration .course-illustration {
    flex: 1;
    min-height: 200px;
}

/* Module number badge */
.course-module-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    font-family: var(--font-body);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: var(--space-md);
}

.module-1 .course-module-badge {
    background: var(--module-1-light);
    color: #166534;
}

.module-2 .course-module-badge {
    background: var(--module-2-light);
    color: #1e40af;
}

.module-3 .course-module-badge {
    background: var(--module-3-light);
    color: #9a3412;
}

.module-4 .course-module-badge {
    background: var(--module-4-light);
    color: #9d174d;
}

/* Main title - Display font */
.course-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    font-weight: 600;
    line-height: 1.1;
    color: #0f172a;
    margin: 0 0 var(--space-sm);
    letter-spacing: -0.02em;
}

/* Subtitle */
.course-subtitle {
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 400;
    color: #64748b;
    line-height: 1.6;
    margin: 0;
}

/* Illustration placeholder */
.course-illustration {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-lg) 0 0 0;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.course-illustration img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.course-illustration-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
    font-family: var(--font-display);
    font-weight: 700;
}

.module-1 .course-illustration-placeholder { color: var(--module-1-primary); }
.module-2 .course-illustration-placeholder { color: var(--module-2-primary); }
.module-3 .course-illustration-placeholder { color: var(--module-3-primary); }
.module-4 .course-illustration-placeholder { color: var(--module-4-primary); }

/* ===========================================
   Info Card (What you'll learn)
   =========================================== */
.course-info-card {
    background: white;
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1), 0 4px 12px rgba(0,0,0,0.08);
    margin-bottom: var(--space-xl);
}

.course-info-title {
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #94a3b8;
    margin: 0 0 var(--space-sm);
}

.course-info-text {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: #334155;
    margin: 0;
}

/* ===========================================
   Section Headers
   =========================================== */
.course-section {
    margin-bottom: var(--space-xl);
    background: white;
    padding: var(--space-md);
    border-radius: var(--radius-md) 0 0 0;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.course-section-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.course-section-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.module-1 .course-section-icon {
    background: var(--module-1-light);
    color: var(--module-1-primary);
}

.module-2 .course-section-icon {
    background: var(--module-2-light);
    color: var(--module-2-primary);
}

.module-3 .course-section-icon {
    background: var(--module-3-light);
    color: var(--module-3-primary);
}

.module-4 .course-section-icon {
    background: var(--module-4-light);
    color: var(--module-4-primary);
}

.course-section-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: #0f172a;
    margin: 0;
}

.course-section-hint {
    font-family: var(--font-body);
    font-size: 14px;
    font-style: italic;
    color: #94a3b8;
    margin-left: auto;
    margin-right: var(--space-sm);
    position: relative;
    cursor: help;
}

.course-section-hint::after {
    content: attr(data-tooltip);
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 280px;
    padding: 12px 16px;
    background: #1e293b;
    color: white;
    font-size: 13px;
    font-style: normal;
    line-height: 1.5;
    border-radius: var(--radius-sm);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
    z-index: 100;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.course-section-hint:hover::after {
    opacity: 1;
    visibility: visible;
}

/* ===========================================
   Main Content Card (Core lessons)
   =========================================== */
.course-main-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1), 0 4px 12px rgba(0,0,0,0.08);
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: var(--space-md);
    align-items: center;
    transition: transform 0.2s, box-shadow 0.2s;
    border: 2px solid transparent;
}

.module-1 .course-main-card { border-color: var(--module-1-primary); }
.module-2 .course-main-card { border-color: var(--module-2-primary); }
.module-3 .course-main-card { border-color: var(--module-3-primary); }
.module-4 .course-main-card { border-color: var(--module-4-primary); }

.course-main-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15), 0 8px 24px rgba(0,0,0,0.1);
}

.course-main-card-illustration {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    overflow: hidden;
}

.course-main-card-illustration i {
    opacity: 0.9;
}

.course-main-card-illustration img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.module-1 .course-main-card-illustration {
    background: var(--module-1-light);
    color: var(--module-1-primary);
}

.module-2 .course-main-card-illustration {
    background: var(--module-2-light);
    color: var(--module-2-primary);
}

.module-3 .course-main-card-illustration {
    background: var(--module-3-light);
    color: var(--module-3-primary);
}

.module-4 .course-main-card-illustration {
    background: var(--module-4-light);
    color: var(--module-4-primary);
}

.course-main-card-content h4 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: #0f172a;
    margin: 0 0 4px;
}

.course-main-card-content p {
    font-family: var(--font-body);
    font-size: 14px;
    color: #64748b;
    margin: 0;
}

.course-main-card-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 100px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
    color: white;
}

.course-main-card-btn:hover {
    transform: scale(1.02);
    color: white;
    text-decoration: none;
}

.module-1 .course-main-card-btn {
    background: var(--module-1-gradient);
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.3);
}

.module-2 .course-main-card-btn {
    background: var(--module-2-gradient);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.module-3 .course-main-card-btn {
    background: var(--module-3-gradient);
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
}

.module-4 .course-main-card-btn {
    background: var(--module-4-gradient);
    box-shadow: 0 4px 12px rgba(236, 72, 153, 0.3);
}

/* ===========================================
   Additional Cards Grid
   =========================================== */
.course-extras-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.course-extra-card {
    background: white;
    border-radius: var(--radius-md);
    padding: var(--space-md);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1), 0 4px 12px rgba(0,0,0,0.08);
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    flex-direction: column;
}

.course-extra-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15), 0 8px 24px rgba(0,0,0,0.1);
    text-decoration: none;
}

.course-extra-card-illustration {
    width: 100%;
    aspect-ratio: 16/10;
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    overflow: hidden;
}

.course-extra-card-illustration i {
    opacity: 0.85;
    text-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.course-extra-card-illustration img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.course-extra-card-illustration.dialogs {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: #d97706;
}

.course-extra-card-illustration.grammar {
    background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
    color: #4f46e5;
}

.course-extra-card-illustration.words {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    color: #059669;
}

.course-extra-card-illustration.tests {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: #dc2626;
}

.course-extra-card-illustration.praktisch {
    background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%);
    color: #0284c7;
}

.course-extra-card-illustration.blog {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: #b45309;
}

.course-extra-card-illustration.journal {
    background: linear-gradient(135deg, #f3e8ff 0%, #e9d5ff 100%);
    color: #7c3aed;
}

.course-extra-card-illustration.cards {
    background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
    color: #16a34a;
}

.course-extra-card-illustration.lingo {
    background: linear-gradient(135deg, #f3e8ff 0%, #e9d5ff 100%);
    color: #9333ea;
}

.course-extra-card-illustration.easy-texts {
    background: linear-gradient(135deg, #fef9c3 0%, #fef08a 100%);
    color: #ca8a04;
}

.course-extra-card h5 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: #0f172a;
    margin: 0 0 4px;
}

.course-extra-card p {
    font-family: var(--font-body);
    font-size: 13px;
    color: #64748b;
    margin: 0;
    line-height: 1.5;
}

/* ===========================================
   Next Module CTA
   =========================================== */
.course-module-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-xl) 0;
    border-top: 1px solid #e2e8f0;
    margin-top: var(--space-xl);
    gap: var(--space-md);
}

.course-prev-btn,
.course-next-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 24px;
    border-radius: 100px;
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    color: white;
    transition: transform 0.2s, box-shadow 0.2s;
}

.course-prev-btn:hover,
.course-next-btn:hover {
    transform: scale(1.02);
    color: white;
    text-decoration: none;
}

.course-prev-btn {
    background: #64748b;
    box-shadow: 0 4px 12px rgba(100, 116, 139, 0.3);
}

.course-prev-btn.to-module-1 {
    background: var(--module-1-gradient);
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.3);
}

.course-prev-btn.to-module-2 {
    background: var(--module-2-gradient);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.course-prev-btn.to-module-3 {
    background: var(--module-3-gradient);
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
}

.course-next-btn.to-module-2 {
    background: var(--module-2-gradient);
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3);
}

.course-next-btn.to-module-3 {
    background: var(--module-3-gradient);
    box-shadow: 0 4px 16px rgba(249, 115, 22, 0.3);
}

.course-next-btn.to-module-4 {
    background: var(--module-4-gradient);
    box-shadow: 0 4px 16px rgba(236, 72, 153, 0.3);
}

/* ===========================================
   Suggestion Card (Module 4)
   =========================================== */
.course-suggestion-card {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
    text-align: center;
}

.course-suggestion-card .suggestion-icon {
    width: 56px;
    height: 56px;
    background: #fbbf24;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-sm);
    font-size: 24px;
    color: white;
}

.course-suggestion-card h4 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: #92400e;
    margin: 0 0 var(--space-xs);
}

.course-suggestion-card p {
    font-family: var(--font-body);
    font-size: 15px;
    color: #a16207;
    margin: 0 0 var(--space-md);
}

.suggestion-form {
    max-width: 500px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.suggestion-form textarea,
.suggestion-form input[type="email"] {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #fcd34d;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 15px;
    background: white;
    resize: vertical;
    transition: border-color 0.2s;
}

.suggestion-form textarea:focus,
.suggestion-form input[type="email"]:focus {
    outline: none;
    border-color: #f59e0b;
}

.suggestion-form textarea::placeholder,
.suggestion-form input[type="email"]::placeholder {
    color: #9ca3af;
}

.suggestion-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    border: none;
    border-radius: 100px;
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.suggestion-btn:hover {
    transform: scale(1.02);
}

.suggestion-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.suggestion-success {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px;
    background: #d1fae5;
    border-radius: var(--radius-md);
    color: #065f46;
    font-weight: 600;
    font-size: 15px;
}

.suggestion-success i {
    font-size: 20px;
    color: #10b981;
}

/* ===========================================
   Completion Card (Module 4)
   =========================================== */
.course-completion-card {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    color: white;
    margin-top: var(--space-xl);
}

.course-completion-card h4 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    margin: 0 0 var(--space-sm);
    color: white;
}

.course-completion-card p {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    margin: 0 0 var(--space-sm);
    color: rgba(255,255,255,0.95);
}

.course-completion-card p:last-of-type {
    margin-bottom: var(--space-md);
}

.course-completion-card .completion-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: white;
    color: #16a34a;
    border-radius: 100px;
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
}

.course-completion-card .completion-btn:hover {
    transform: scale(1.03);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    text-decoration: none;
    color: #16a34a;
}

/* Lingocat card variant */
.course-completion-card.lingocat-card {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
}

.course-completion-card.lingocat-card .completion-btn {
    color: #7c3aed;
}

.course-completion-card.lingocat-card .completion-btn:hover {
    color: #7c3aed;
}

.lingocat-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: var(--space-sm);
    border: 3px solid rgba(255,255,255,0.3);
}

/* ===========================================
   Responsive
   =========================================== */
@media (max-width: 768px) {
    /* Reduce base spacing on mobile */
    .course-container {
        padding: 0 var(--space-xs);
    }

    .course-page {
        padding-bottom: var(--space-md);
    }

    .course-breadcrumb {
        padding: var(--space-xs) 0;
    }

    /* Hero */
    .course-hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding: var(--space-xs) 0 var(--space-sm);
        gap: var(--space-xs);
        background: none !important;
        border-radius: 0;
        margin-bottom: var(--space-xs);
    }

    .course-hero-content {
        order: 1;
        padding: 0;
    }

    .course-hero-illustration {
        order: 2;
        width: 100vw;
        max-width: none;
        margin-left: calc(-1 * var(--space-sm));
        margin-right: calc(-1 * var(--space-sm));
        align-self: auto;
    }

    .course-illustration {
        aspect-ratio: 21 / 9;
        border-radius: 0;
        width: 100%;
        height: auto;
    }

    .course-module-badge {
        padding: 4px 10px;
        font-size: 10px;
        margin-bottom: 4px;
    }

    .course-title {
        font-size: 1.5rem;
        margin-bottom: 4px;
    }

    .course-subtitle {
        font-size: 13px;
    }

    /* Info card */
    .course-info-card {
        padding: var(--space-xs);
        margin-bottom: var(--space-sm);
        border-radius: var(--radius-sm);
    }

    .course-info-title {
        font-size: 11px;
        margin-bottom: var(--space-xs);
    }

    .course-info-text {
        font-size: 14px;
        line-height: 1.6;
    }

    /* Sections */
    .course-section {
        margin-bottom: var(--space-sm);
        padding: var(--space-xs);
    }

    .course-section-header {
        flex-wrap: wrap;
        gap: 4px;
        margin-bottom: var(--space-xs);
    }

    .course-section-icon {
        width: 32px;
        height: 32px;
        font-size: 14px;
        border-radius: 8px;
    }

    .course-section-title {
        font-size: 1.15rem;
    }

    .course-section-hint {
        width: 100%;
        margin-left: 0;
        margin-top: 0;
        font-size: 12px;
    }

    /* Main card */
    .course-main-card {
        grid-template-columns: 1fr;
        text-align: center;
        padding: var(--space-sm);
        gap: var(--space-sm);
        border-radius: var(--radius-md);
    }

    .course-main-card-illustration {
        width: 56px;
        height: 56px;
        margin: 0 auto;
        font-size: 24px;
        border-radius: var(--radius-sm);
    }

    .course-main-card-content h4 {
        font-size: 1rem;
    }

    .course-main-card-content p {
        font-size: 13px;
    }

    .course-main-card-btn {
        padding: 10px 20px;
        font-size: 13px;
    }

    /* Extra cards grid */
    .course-extras-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-xs);
    }

    .course-extra-card {
        padding: var(--space-xs);
        border-radius: var(--radius-sm);
    }

    .course-extra-card-illustration {
        aspect-ratio: 3/2;
        font-size: 24px;
        margin-bottom: var(--space-xs);
        border-radius: 8px;
    }

    .course-extra-card h5 {
        font-size: 0.9rem;
    }

    .course-extra-card p {
        font-size: 11px;
        line-height: 1.4;
    }

    /* Module navigation */
    .course-module-nav {
        flex-direction: column;
        padding: var(--space-md) 0;
        margin-top: var(--space-md);
    }

    .course-prev-btn,
    .course-next-btn {
        padding: 12px 20px;
        font-size: 14px;
        gap: 8px;
        width: 100%;
        justify-content: center;
    }

    /* Completion card */
    .course-completion-card {
        padding: var(--space-md);
        margin-top: var(--space-md);
        border-radius: var(--radius-md);
    }

    .course-completion-card h4 {
        font-size: 1.25rem;
    }

    .course-completion-card p {
        font-size: 14px;
    }

    .lingocat-avatar {
        width: 64px;
        height: 64px;
    }
}