/* catalogo.css - Índice Alfabético de Artistas (Doze Teclas)
   Reaproveita a identidade visual padrão do projeto:
   Fundo #121416/#181a1d, cards #1a1d20, destaque dourado #ffd700/#f59e0b */

/* ─── CABEÇALHO DA PÁGINA ─── */
.catalogo-hero {
    text-align: center;
    padding: 50px 20px 20px 20px;
    max-width: 800px;
    margin: 0 auto;
    margin-top: 50px;
}

.catalogo-tagline {
    color: #ffd700;
    font-size: 0.8rem;
    font-weight: bold;
    letter-spacing: 2px;
    margin-bottom: 8px;
    text-transform: uppercase;
}

.catalogo-hero h1 {
    font-size: 2.4rem;
    font-weight: 800;
    color: #ffffff;
    margin: 0 0 10px 0;
    letter-spacing: -0.5px;
}

.catalogo-subtitle {
    color: #8b949e;
    font-size: 0.95rem;
    margin: 0;
}

/* ─── BARRA DE ÍNDICE RÁPIDO A-Z ─── */
.az-index-bar {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 6px;
    padding: 12px 16px;
    background: #181a1d;
    border-bottom: 1px solid #2d3238;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    margin: 30px 0 0 0;
}

.az-index-bar::-webkit-scrollbar {
    height: 4px;
}

.az-index-bar::-webkit-scrollbar-thumb {
    background: #ffd700;
    border-radius: 2px;
}

.az-index-bar a {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    background: #1a1d20;
    color: #ffd700;
    font-weight: bold;
    font-size: 0.85rem;
    text-decoration: none;
    border: 1px solid #2d3238;
    transition: all 0.15s ease-in-out;
}

.az-index-bar a:hover {
    background: #ffd700;
    color: #121416;
    border-color: #ffd700;
}

.az-index-bar a.disabled {
    color: #4b5157;
    background: #1a1d20;
    border-color: #23262a;
    cursor: default;
    pointer-events: none;
    opacity: 0.5;
}

/* ─── CONTAINER PRINCIPAL / SEÇÕES ALFABÉTICAS ─── */
.catalogo-lista-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px 20px 60px 20px;
}

.catalogo-letter-section {
    margin-bottom: 30px;
    scroll-margin-top: 70px; /* compensa a barra sticky ao usar âncoras */
}

.catalogo-letter-heading {
    font-size: 1.4rem;
    font-weight: 800;
    color: #ffd700;
    /* border-bottom: 2px solid #f59e0b; */
    padding-bottom: 6px;
    margin: 0 0 15px 0;
    letter-spacing: 1px;
}

.catalogo-artist-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.catalogo-artist-link {
    display: block;
    background: #1a1d20;
    border: 1px solid #2d3238;
    border-radius: 8px;
    padding: 14px 16px;
    color: #ffffff;
    text-decoration: none;
    font-size: 0.95rem;
    transition: all 0.2s ease-in-out;
    word-break: break-word;
}

.catalogo-artist-link:hover {
    background: #24292e;
    border-color: #ffd700;
    color: #ffd700;
    transform: translateY(-2px);
}

/* ─── ESTADOS: LOADING / ERRO / VAZIO ─── */
.loading-placeholder, .no-songs-box, .error-msg {
    text-align: center;
    padding: 40px;
    color: #8b949e;
    background-color: #1a1d20;
    border-radius: 8px;
    border: 1px dashed #2d3238;
}

/* ─── RESPONSIVIDADE MOBILE-FIRST ─── */
@media (max-width: 480px) {
    .catalogo-hero h1 {
        font-size: 1.8rem;
    }

    .catalogo-artist-grid {
        grid-template-columns: 1fr; /* uma coluna no celular */
    }

    .az-index-bar a {
        width: 28px;
        height: 28px;
        font-size: 0.8rem;
    }
}

/* ─── DESKTOP: Centraliza a barra de índice A-Z (mobile permanece com scroll horizontal) ─── */
@media (min-width: 768px) {
    .az-index-bar {
        justify-content: center;
        flex-wrap: wrap;
        overflow-x: visible;
    }
}

/* ==========================================================
   ☀️ Botão de Alternância de Tema (reaproveitado do style.css)
   ========================================================== */
.theme-toggle-btn {
    background: none;
    border: none;
    color: #777;
    font-size: 24px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    padding: 0 4px;
    margin-left: 12px;
    cursor: pointer;
    transition: color 0.2s ease, transform 0.15s ease;
}

.theme-toggle-btn:hover {
    color: #ffd700;
}

.theme-toggle-btn:active {
    transform: scale(0.9);
}

.theme-toggle-btn .bi-toggle-on {
    color: #ffd700;
}

/* ==========================================================
   ☀️ MODO CLARO (Light Theme) - Catálogo de Artistas A-Z
   ========================================================== */
body.light-theme .catalogo-tagline {
    color: #b8860b;
}

body.light-theme .catalogo-hero h1 {
    color: #121416;
}

body.light-theme .catalogo-subtitle {
    color: #4b5563;
}

body.light-theme .az-index-bar {
    background: #f8f9fa;
    border-bottom: 1px solid #dfe1e5;
}

body.light-theme .az-index-bar a {
    background: #ffffff;
    color: #b8860b;
    border: 1px solid #dfe1e5;
}

body.light-theme .az-index-bar a:hover {
    background: #ffd700;
    color: #121416;
    border-color: #ffd700;
}

body.light-theme .az-index-bar a.disabled {
    color: #b0b5bb;
    background: #f0f1f3;
    border-color: #e2e4e7;
}

body.light-theme .catalogo-letter-heading {
    color: #b8860b;
}

body.light-theme .catalogo-artist-link {
    background: #ffffff;
    border-color: #dfe1e5;
    color: #121416;
}

body.light-theme .catalogo-artist-link:hover {
    background: #f8f9fa;
    border-color: #ffd700;
    color: #b8860b;
}

body.light-theme .loading-placeholder,
body.light-theme .no-songs-box,
body.light-theme .error-msg {
    background-color: #f8f9fa;
    color: #4b5563;
    border-color: #dfe1e5;
}