/* ==========================================================================
   CATEGORIES DIRECTORY PAGE STYLES (MODULAR)
   ========================================================================== */

.categories-landing-main {
    background-color: var(--bg-color);
}

.categories-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
    box-sizing: border-box;
}

/* 1. Hero Header */
.categories-hero-section {
    padding: 70px 20px 50px 20px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    background: radial-gradient(circle at top, #13101c 0%, var(--bg-color) 100%); /* Deep Purple/Violet gradient */
}

.categories-badge {
    display: inline-block;
    background-color: rgba(255, 42, 116, 0.08);
    color: var(--accent-color);
    font-size: 0.75rem;
    font-weight: 800;
    padding: 4px 12px;
    border-radius: 50px;
    border: 1px solid rgba(255, 42, 116, 0.15);
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.categories-main-title {
    font-size: 2.2rem;
    font-weight: 800;
    margin: 0 0 12px 0;
    letter-spacing: -1px;
    color: var(--text-color);
    line-height: 1.2;
}

.categories-sub-title {
    color: var(--text-muted);
    font-size: 1rem;
    max-width: 650px;
    margin: 0 auto;
    line-height: 1.6;
}

/* 2. Alphabet Quick Navigation Bar (Horizontal Scroll on Mobile) */
.alphabet-nav-section {
    background-color: rgba(255, 255, 255, 0.003);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 0;
    position: sticky;
    top: 61px; /* Just below sticky header */
    z-index: 99;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    background-color: rgba(9, 9, 11, 0.85);
}

.alphabet-nav-bar {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    scrollbar-width: none; /* Hide scrollbar on Firefox */
    -webkit-overflow-scrolling: touch;
}

.alphabet-nav-bar::-webkit-scrollbar {
    display: none; /* Hide scrollbar on Chrome/Safari */
}

.alphabet-nav-link {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 800;
    width: 34px;
    height: 34px;
    min-width: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    text-decoration: none;
    transition: all 0.2s ease;
}

.alphabet-nav-link:hover {
    color: #ffffff;
    border-color: var(--accent-color);
    background-color: var(--accent-color);
    box-shadow: 0 4px 10px rgba(255, 42, 116, 0.2);
}

/* 3. Alphabetical Directory Grid */
.directory-grid-section {
    padding: 60px 0 80px 0;
}

.directory-groups-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

/* Tarjeta por cada Letra (A, B, C...) */
.directory-group-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    text-align: left;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    /* Ajustar posición de anclaje para que el menú de salto rápido no tape el título h3 */
    scroll-margin-top: 130px; 
}

.group-letter-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
    margin-bottom: 15px;
}

.group-letter-header h3 {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--accent-color);
    margin: 0;
    line-height: 1;
}

/* Lista de enlaces */
.group-links-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.directory-category-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-decoration: none;
    color: var(--text-color);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 8px 12px;
    border-radius: 8px;
    background-color: rgba(255, 255, 255, 0.01);
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

.directory-category-link:hover {
    border-color: var(--border-color);
    background-color: rgba(255, 42, 116, 0.03);
    color: var(--accent-color);
}

.dir-cat-name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dir-cat-count {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 700;
}

/* --- Adaptación Desktop (min-width: 768px) --- */
@media (min-width: 768px) {
    .categories-hero-section {
        padding: 90px 20px 60px 20px;
    }
    
    .categories-main-title {
        font-size: 3rem;
    }

    .alphabet-nav-bar {
        justify-content: center; /* Centrar las letras en monitor */
        flex-wrap: wrap;
    }

    /* Grid de grupos alfabéticos en 2 columnas */
    .directory-groups-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    /* Enlaces dentro de cada tarjeta distribuidos en 2 columnas */
    .group-links-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px 20px;
    }
}

@media (min-width: 1100px) {
    /* Grid de grupos alfabéticos en 3 columnas para pantallas muy anchas */
    .directory-groups-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}