/* ==========================================================================
   1. VARIÁVEIS DE SISTEMA & TEMAS (CSS MODERNO)
   ========================================================================== */
html[data-theme="dark"] {
    --bg-main: #0f172a;
    --bg-card: #1e293b;
    --bg-input: #334155;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #06b6d4;
    --accent-hover: #0891b2;
    --border-color: #334155;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
    --badge-video: #16a34a;
    --badge-audio: #0284c7;
}

html[data-theme="light"] {
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --bg-input: #f1f5f9;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --accent: #0284c7;
    --accent-hover: #0369a1;
    --border-color: #e2e8f0;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
    --badge-video: #15803d;
    --badge-audio: #0369a1;
}

/* ==========================================================================
   2. RESETS E CONFIGURAÇÕES ANTI-VAZAMENTO
   ========================================================================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.5;
    padding-bottom: 240px; /* Previne que o player cubra elementos do rodapé */
    min-height: 100vh;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ==========================================================================
   3. LAYOUT COMPONENTES: HEADER
   ========================================================================== */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.svg-icon-logo {
    width: 32px;
    height: 32px;
    fill: var(--accent);
}

.header-logo h1 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.025em;
}

.header-controls {
    display: flex;
    gap: 0.5rem;
}

.btn-icon {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.5rem;
    border-radius: 0.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background-color: var(--bg-input);
    border-color: var(--accent);
}

.svg-icon {
    width: 20px;
    height: 20px;
}

/* ==========================================================================
   4. ESTRUTURA DO CONTAINER DE UPLOAD
   ========================================================================== */
.app-container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    width: 100%;
}

.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.drop-zone-area {
    border: 2px dashed var(--border-color);
    border-radius: 0.75rem;
    padding: 3rem 1rem;
    text-align: center;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.drop-zone-area:hover, .drop-zone-area.drag-over {
    border-color: var(--accent);
    background-color: var(--bg-input);
}

.svg-icon-upload {
    width: 48px;
    height: 48px;
    fill: var(--text-muted);
}

.btn-secondary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid var(--border-color);
    font-size: 0.95rem;
    white-space: nowrap;
    background-color: var(--bg-input);
    color: var(--text-main);
    width: 100%;
}

.btn-secondary:hover {
    border-color: var(--accent);
}

.svg-icon-btn {
    width: 18px;
    height: 18px;
}

/* ==========================================================================
   5. GRID DOS RESULTADOS DA ANÁLISE
   ========================================================================== */
.results-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    width: 100%;
}

@media (min-width: 768px) {
    .results-grid {
        grid-template-columns: 4fr 8fr;
    }
}

.d-none {
    display: none !important;
}

.thumbnail-wrapper {
    position: relative;
    width: 100%;
    text-align: center;
    aspect-ratio: 16 / 9;
    background-color: #000000;
    border-radius: 0.5rem;
    margin: 1rem 0;
    overflow: hidden;
}

.img-preview-clickable {
    width: 100%;
    height: 100%;
    object-fit: contain;
    cursor: pointer;
}

.thumb-overlay-actions {
    position: absolute;
    right: 0.5rem;
    bottom: 0.5rem;
}

.btn-action-round {
    background-color: rgba(0, 0, 0, 0.7);
    border: none;
    color: #ffffff;
    padding: 0.5rem;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
}

.btn-action-round:hover {
    background-color: var(--accent);
}

.action-buttons-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1rem;
}

.metadata-scroll-area {
    margin-top: 1rem;
    max-height: 550px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.metadata-group {
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--accent);
    padding-left: 1rem;
    background-color: rgba(255, 255, 255, 0.01);
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
    border-radius: 0 0.5rem 0.5rem 0;
}

.metadata-group.group-video { border-left-color: var(--badge-video); }
.metadata-group.group-audio { border-left-color: var(--badge-audio); }

.track-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    gap: 0.5rem;
}

.track-header h4 {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    word-break: break-all;
}

.track-badge {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: 0.25rem;
    color: #ffffff;
    text-transform: uppercase;
    white-space: nowrap;
}

.metadata-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
    gap: 1rem;
}

.metadata-item:last-child {
    border-bottom: none;
}

.metadata-label {
    color: var(--text-muted);
    white-space: nowrap;
}

.metadata-value {
    font-weight: 500;
    text-align: right;
    word-break: break-word;
}


/* ==========================================================================
   BARRA DE ROLAGEM (SCROLLBAR) PROFISSIONAL PREMIUM - CROSS-BROWSER
   ========================================================================== */

/* 1. Motores Modernos (Chrome, Safari, Edge, Opera e iOS/Android) */
::-webkit-scrollbar {
    width: 10px;               /* Largura da barra vertical */
    height: 10px;              /* Altura da barra horizontal */
}

/* O trilho por onde a barra desliza (Track) */
::-webkit-scrollbar-track {
    background-color: var(--bg-main, #0f172a); /* Herda o fundo escuro/claro do seu app */
    border-radius: 100px;
}

/* O indicador deslizante que o usuário arrasta (Thumb) */
::-webkit-scrollbar-thumb {
    background-color: #334155; /* Cor cinza slate premium fosco */
    border-radius: 100px;      /* Cantos 100% arredondados em formato pílula */
    border: 2px solid var(--bg-main, #0f172a); /* Cria um espaçamento elegante nas bordas */
    transition: background-color 0.2s ease;
}

/* Feedback visual reativo ao passar o mouse por cima (Hover) */
::-webkit-scrollbar-thumb:hover {
    background-color: #06b6d4; /* Muda cirurgicamente para o ciano do player */
}

/* Estado quando o usuário está clicando e arrastando a barra (Active) */
::-webkit-scrollbar-thumb:active {
    background-color: #0891b2; /* Tom de ciano ligeiramente mais escuro para feedback de pressão */
}

/* 2. Suporte Nativo para o Firefox (Padrão Moderno W3C) */
* {
    scrollbar-width: thin;                        /* Deixa a barra fina e elegante */
    scrollbar-color: #334155 var(--bg-main, #0f172a); /* Define (Cor do indicador | Cor do trilho) */
}