/**
 * === GLOSSARY.CSS ===
 * /assets/css/glossary.css
 * НАЗНАЧЕНИЕ: Стили для страницы глоссария (словаря терминов)
 * СВЯЗИ: course-page.css (terms-table), glossary.js
 * РАЗМЕР: ~200 строк
 */

/* ============================================
   GLOSSARY PAGE LAYOUT
   ============================================ */

.glossary-page {
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
}

.glossary-page__header {
    margin-bottom: var(--spacing-lg);
}

.glossary-page__title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 var(--spacing-xs) 0;
}

.glossary-page__subtitle {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin: 0;
}

/* ============================================
   SEARCH & FILTERS
   ============================================ */

.glossary-toolbar {
    display: flex;
    gap: 10px;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    align-items: center;
}

.glossary-search {
    flex: 1;
    min-width: 200px;
    position: relative;
}

.glossary-search__input {
    width: 100%;
    padding: 10px 10px 10px 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color, #e5e5e5);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: var(--font-body);
    transition: border-color 0.2s ease;
    box-sizing: border-box;
}

.glossary-search__input:focus {
    outline: none;
    border-color: var(--color-gold);
}

.glossary-search__input::placeholder {
    color: var(--text-muted);
}

.glossary-search__icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--text-muted);
    pointer-events: none;
}

.glossary-filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color, #e5e5e5);
    border-radius: 10px;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-body);
    white-space: nowrap;
}

.glossary-filter-btn:hover {
    border-color: var(--color-gold);
    color: var(--text-primary);
}

.glossary-filter-btn.active {
    background: rgba(255, 215, 0, 0.1);
    border-color: var(--color-gold);
    color: var(--color-gold);
}

/* ============================================
   STATS ROW
   ============================================ */

.glossary-stats {
    display: flex;
    gap: 10px;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.glossary-stat {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--bg-card);
    border-radius: 100px;
    font-size: 0.82rem;
    color: var(--text-muted);
    border: 1px solid var(--border-color, #e5e5e5);
    flex: 0 0 auto;
    white-space: nowrap;
}

.glossary-stat__num {
    font-weight: 700;
    color: var(--text-primary);
}

/* ============================================
   GLOSSARY TABLE — наследует terms-table
   ============================================ */

.glossary-table-wrap {
    overflow-x: auto;
}

.glossary-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color, #e5e5e5);
}

.glossary-table thead th {
    padding: 10px;
    background: var(--bg-secondary, rgba(255,255,255,0.04));
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    text-align: left;
    border-bottom: 1px solid var(--border-color, #e5e5e5);
    cursor: pointer;
    user-select: none;
    transition: color 0.2s ease;
    white-space: nowrap;
}

.glossary-table thead th:hover {
    color: var(--color-gold);
}

.glossary-table thead th .sort-arrow {
    display: inline-block;
    margin-left: 4px;
    font-size: 0.7rem;
    opacity: 0.4;
}

.glossary-table thead th.sorted .sort-arrow {
    opacity: 1;
    color: var(--color-gold);
}

.glossary-table tbody td {
    padding: 10px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color, rgba(229,229,229,0.5));
    vertical-align: top;
}

.glossary-table tbody tr:last-child td {
    border-bottom: none;
}

.glossary-table tbody tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.glossary-table td strong {
    color: var(--text-primary);
    font-weight: 600;
}

.glossary-table .lang-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 100px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.lang-badge.lang-sanskrit {
    background: rgba(168, 85, 247, 0.12);
    color: #a855f7;
}

.lang-badge.lang-tibetan {
    background: rgba(59, 130, 246, 0.12);
    color: #3b82f6;
}

.lang-badge.lang-pali {
    background: rgba(16, 185, 129, 0.12);
    color: #10b981;
}

/* Курс/урок бейдж в описании */
.glossary-source {
    display: inline-block;
    font-size: 0.75rem;
    color: var(--text-muted);
    background: var(--bg-secondary, rgba(255,255,255,0.04));
    padding: 2px 6px;
    border-radius: 4px;
    margin-top: 4px;
}

/* ============================================
   EMPTY STATE
   ============================================ */

.glossary-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.glossary-empty__icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    opacity: 0.4;
}

.glossary-empty h3 {
    color: var(--text-primary);
    margin: 0 0 var(--spacing-xs) 0;
}

.glossary-empty p {
    margin: 0;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    .glossary-page {
        padding: var(--spacing-md) var(--spacing-sm);
    }

    .glossary-page__title {
        font-size: 1.5rem;
    }

    .glossary-toolbar {
        flex-direction: column;
    }

    .glossary-search {
        min-width: 100%;
    }

    /* Card-based layout for mobile instead of table */
    .glossary-table {
        font-size: 0.82rem;
    }

    .glossary-table thead {
        display: none;
    }

    .glossary-table tbody tr {
        display: flex;
        flex-direction: column;
        padding: 10px;
        margin-bottom: 8px;
        border: 1px solid var(--border-color);
        border-radius: 10px;
        background: var(--bg-card);
    }

    .glossary-table tbody tr:hover td {
        background: transparent;
    }

    .glossary-table tbody td {
        display: block;
        padding: 2px 0;
        border-bottom: none;
    }

    .glossary-table tbody td:first-child {
        font-size: 1rem;
        font-weight: 600;
        color: var(--text-primary);
        margin-bottom: 4px;
    }

    .glossary-table tbody td:last-child {
        font-size: 0.8rem;
        color: var(--text-muted);
    }
}

@media (max-width: 480px) {
    .glossary-stats {
        gap: 6px;
    }

    .glossary-stat {
        padding: 4px 8px;
        font-size: 0.75rem;
    }

    .glossary-filter-btn {
        padding: 8px 12px;
        font-size: 0.8rem;
    }
}