/* ============================================================
   DivisorPDF — camada do app sobre o design system Stölben.
   Carrega DEPOIS de stolben-ui.css. Todos os valores derivam dos
   tokens --ds-* para manter a mesma identidade ("Infra Premium").
   As classes/IDs funcionais consumidas pelo app.js são preservadas.
   ============================================================ */

:root {
    /* Aliases do app → tokens do design system */
    --bg: var(--ds-bg);
    --surface: var(--ds-surface);
    --surface-alt: var(--ds-panel);
    --surface-hover: var(--ds-accent-50);

    --border: var(--ds-line);
    --border-strong: var(--ds-line-dash);

    --brand: var(--ds-accent);
    --brand-hover: var(--ds-accent-dark);
    --brand-active: var(--ds-accent-dark);
    --brand-soft: var(--ds-accent-50);
    --brand-soft-border: var(--ds-accent-100);
    --brand-text: var(--ds-accent-dark);

    /* Estados semânticos — derivados dos tokens do DS para adaptarem no escuro. */
    --success: var(--ds-success);
    --success-hover: var(--ds-success);
    --success-soft: var(--ds-success-50);
    --success-border: var(--ds-success-100);
    --danger: var(--ds-danger);
    --danger-hover: var(--ds-danger);
    --danger-soft: var(--ds-danger-50);
    --danger-border: var(--ds-danger-100);
    --warn-text: var(--ds-warn);
    --warn-soft: var(--ds-warn-50);
    --warn-border: var(--ds-warn-100);

    /* Texto */
    --text: var(--ds-t-900);
    --text-2: var(--ds-t-700);
    --text-3: var(--ds-t-500);

    /* Raios (alinhados ao DS) */
    --r-lg: var(--ds-radius-lg);   /* 1.5rem — cards */
    --r-md: var(--ds-radius-md);   /* 1rem — inputs/blocos internos */
    --r-sm: 0.75rem;
    --r-xs: 0.5rem;

    /* Sombras */
    --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-sm: var(--ds-shadow-card);
    --shadow-md: var(--ds-shadow-card);
    --shadow-lg: var(--ds-shadow-block);

    /* Espaçamento (escala de 4px, igual ao DS) */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;

    --transition-fast: 120ms ease;
    --transition-base: 200ms var(--ds-ease);

    --font-body: var(--ds-font-sans);
    --font-display: var(--ds-font-display);
    --ring: 0 0 0 3px var(--ds-accent-100);
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

/* .ds-root (no <body>) já aplica fonte, cor e fundo do DS. */

/* ---------- Shell focado (app de coluna única) ---------- */

.ds-app {
    max-width: 56rem;          /* mais estreito que o site, foco na ferramenta */
}

.main-content {
    /* ds-stack já fornece padding + gap. O hero fica sob a nav fixa
       (área escura), então não há vão claro que prejudique a leitura. */
    gap: var(--space-lg);
}

/* ---------- Nav (pílula) ---------- */

/* Layout e aparência vêm do componente do DS (.ds-nav/.ds-nav-pill = a mesma
   nav-pílula do site stolben.com). Aqui só o acento violet do logo "PDF". */
.ds-nav-brand .logo-accent { color: var(--ds-accent-light); }

/* ---------- Hero (painel escuro do DS, com foto real) ---------- */

.header {
    display: flex;
    flex-direction: column;
    justify-content: center;      /* variação: conteúdo centralizado (portfólio é bottom) */
    min-height: 34rem;
    padding: 6rem var(--space-2xl) var(--space-2xl);
}

/* Foto de fundo escurecida (assinatura do tema) */
.header-media { position: absolute; inset: 0; z-index: 0; background: var(--ds-ink); }
.header-media img { width: 100%; height: 100%; object-fit: cover; opacity: 0.66; }
/* Variação vs portfólio: gradiente para a DIREITA (texto à esquerda),
   mais leve (hero um pouco mais claro), com leve escurecimento no topo p/ a nav. */
.header-grad {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(to right, var(--ds-ink) 18%, rgba(15, 17, 21, 0.58) 54%, rgba(15, 17, 21, 0.25)),
        linear-gradient(to bottom, rgba(15, 17, 21, 0.5), transparent 24%);
}

.header .ds-glow { top: -8rem; left: -4rem; width: 32rem; height: 32rem; }
.header .ds-noise { opacity: 0.06; }

.header-content {
    position: relative;
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
    max-width: 40rem;
}

.logo-text {
    font-size: clamp(2.2rem, 5.5vw, 3.6rem);
    color: var(--ds-on-dark);
    margin-top: var(--space-xs);
}

.logo-accent { color: var(--ds-accent-light); }

.header-subtitle {
    max-width: 44ch;
    color: var(--ds-on-dark-dim);
    font-size: 1.05rem;
    line-height: 1.65;
}

/* Linha de meta-stats — elemento exclusivo deste hero (não existe no portfólio) */
.header-meta {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xl);
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--ds-line-dark);
}
.header-meta li { display: flex; flex-direction: column; gap: 0.1rem; }
.header-meta strong {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--ds-on-dark);
    letter-spacing: -0.02em;
}
.header-meta span { color: var(--ds-on-dark-dim); font-size: 0.8rem; }

/* ---------- Faixa de pilares / diferenciais ---------- */

.feature-band {
    position: relative;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.55);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    padding: var(--space-2xl) var(--space-xl);
}

.feature-band .ds-noise { opacity: 0.1; }

.feature-band-head {
    position: relative;
    z-index: 2;
    margin-bottom: var(--space-xl);
}

.feature-band-head .ds-kicker { color: var(--brand); display: block; margin-bottom: var(--space-sm); }
.feature-band-head h2 { font-size: clamp(1.6rem, 3.6vw, 2.3rem); color: var(--text); }

.feature-grid {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.feature .ds-icon-box { margin-bottom: var(--space-md); }
.feature:hover .ds-icon-box { transform: scale(1.08); }
.feature h3 {
    font-family: var(--font-display);
    font-size: 1.08rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text);
    margin-bottom: var(--space-xs);
}
.feature p { color: var(--text-3); font-size: 0.92rem; line-height: 1.6; }

/* Stagger dentro da grade de pilares (revelado junto com a faixa) */
.feature-band.is-visible .reveal-child { animation: fade-in-up 620ms var(--ds-ease) both; }
.feature-band.is-visible .reveal-child:nth-child(2) { animation-delay: 100ms; }
.feature-band.is-visible .reveal-child:nth-child(3) { animation-delay: 200ms; }

/* ---------- Cabeçalho de cartão (com kicker) ---------- */

.card-head-text { display: flex; flex-direction: column; gap: 0.1rem; }
.card-head-text .ds-kicker { color: var(--brand); }

/* ---------- Cartões ---------- */

.card {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 400ms ease;
}

/* Fina barra de acento azul no topo do cartão principal */
.card-upload::before {
    content: '';
    position: absolute;
    top: 0;
    left: 1.5rem;
    right: 1.5rem;
    height: 2px;
    border-radius: 0 0 var(--ds-radius-pill) var(--ds-radius-pill);
    background: linear-gradient(90deg, transparent, var(--brand), transparent);
    opacity: 0.7;
}

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

.card-icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--ds-radius-md);
    background: var(--ds-accent-50);
    border: 1px solid var(--ds-accent-100);
    color: var(--brand);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.card-icon-processing { background: var(--ds-accent-50); border-color: var(--ds-accent-100); color: var(--brand); }
.card-icon-success { background: var(--success-soft); border-color: var(--success-border); color: var(--success); }
.card-icon-error { background: var(--danger-soft); border-color: var(--danger-border); color: var(--danger); }

.card-header h2 {
    font-family: var(--font-display);
    font-size: var(--ds-fs-h3);
    font-weight: 600;
    color: var(--text);
    letter-spacing: -0.02em;
}

/* ---------- Drop zone ---------- */

.drop-zone {
    position: relative;
    border: 1.5px dashed var(--border-strong);
    border-radius: var(--r-md);
    padding: var(--space-2xl) var(--space-xl);
    background:
        radial-gradient(120% 90% at 50% -10%, var(--ds-accent-50), transparent 60%),
        var(--surface-alt);
    text-align: center;
    cursor: pointer;
    transition: border-color var(--transition-base), background var(--transition-base), box-shadow var(--transition-base);
    outline: none;
}

.drop-zone:hover,
.drop-zone:focus-visible,
.drop-zone.drag-over {
    border-color: var(--brand);
    background: var(--brand-soft);
}

.drop-zone.drag-over { box-shadow: var(--ring); }

.drop-zone-icon {
    width: 4rem;
    height: 4rem;
    margin: 0 auto var(--space-md);
    border-radius: var(--ds-radius-pill);
    background: var(--ds-accent-50);
    border: 1px solid var(--ds-accent-100);
    color: var(--brand);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-base);
}

.drop-zone:hover .drop-zone-icon,
.drop-zone.drag-over .drop-zone-icon { transform: scale(1.06); }

.drop-zone-icon svg { width: 2rem; height: 2rem; }

.drop-zone-text {
    color: var(--text);
    font-size: 1rem;
    margin-bottom: var(--space-sm);
}

.drop-zone-text strong {
    display: block;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.drop-zone-text span,
.drop-zone-hint {
    color: var(--text-3);
    font-size: 0.875rem;
}

.file-input-hidden {
    position: absolute;
    width: 0;
    height: 0;
    opacity: 0;
    pointer-events: none;
}

/* ---------- Lista de arquivos ---------- */

.file-list,
.compress-control,
.action-switch-control,
.size-control {
    margin-top: var(--space-xl);
}

.file-list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.file-list-header h3 {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
}

.btn-text {
    background: transparent;
    border: none;
    color: var(--danger);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--r-xs);
    font-family: var(--font-body);
    transition: background var(--transition-fast);
}

.btn-text:hover { background: var(--danger-soft); }

.file-items {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    max-height: 240px;
    overflow-y: auto;
    padding-right: var(--space-xs);
}

.file-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: 0.7rem var(--space-md);
    background: var(--surface-alt);
    border: 1px solid var(--border);
    border-radius: var(--r-sm);
    transition: border-color var(--transition-fast);
}

.file-item:hover { border-color: var(--border-strong); }

.file-item-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--r-xs);
    background: var(--ds-accent-50);
    border: 1px solid var(--ds-accent-100);
    color: var(--brand);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.file-item-info { flex: 1; min-width: 0; }

.file-item-name {
    color: var(--text);
    font-size: 0.9rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-item-size { color: var(--text-3); font-size: 0.8rem; }

.file-item-remove {
    border: none;
    background: transparent;
    color: var(--text-3);
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--r-xs);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.file-item-remove:hover { background: var(--danger-soft); color: var(--danger); }

.file-list-summary {
    display: flex;
    justify-content: space-between;
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--border);
    color: var(--text-2);
    font-size: 0.875rem;
    font-weight: 600;
}

/* ---------- Rótulos ---------- */

.size-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    color: var(--text);
    font-size: 0.95rem;
    font-weight: 600;
}

.size-label svg { color: var(--brand); }

/* ---------- Opções de compressão ---------- */

.compress-options {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.65rem;
}

.compress-opt-card {
    display: block;
    position: relative;
    cursor: pointer;
    padding: var(--space-md);
    padding-right: 2.25rem;
    min-height: 128px;
    background: var(--surface-alt);
    border: 1.5px solid var(--border);
    border-radius: var(--r-md);
    transition: border-color var(--transition-base), background var(--transition-base), box-shadow var(--transition-base);
}

.compress-opt-card:hover {
    border-color: var(--border-strong);
    background: var(--surface-hover);
}

.compress-opt-card.active {
    border-color: var(--brand);
    background: var(--brand-soft);
    box-shadow: var(--ring);
}

/* Indicador de seleção (círculo no canto) */
.compress-opt-card::after {
    content: '';
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 1.1rem;
    height: 1.1rem;
    border-radius: 50%;
    border: 1.5px solid var(--border-strong);
    background: var(--surface);
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.compress-opt-card.active::after {
    border-color: var(--brand);
    background: var(--brand) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center / 0.7rem no-repeat;
}

.compress-radio-hidden {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.compress-opt-content {
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.compress-opt-title { color: var(--text); font-size: 0.9rem; font-weight: 600; }
.compress-opt-desc { color: var(--text-2); font-size: 0.78rem; line-height: 1.35; flex: 1; }
.compress-opt-est { color: var(--brand-text); font-size: 0.78rem; font-weight: 600; }

/* ---------- Switch ---------- */

.action-switch-control {
    padding: var(--space-md) var(--space-lg);
    background: var(--surface-alt);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
}

/* O toggle em si vem do DS (.ds-switch + .ds-switch-track). Aqui só fazemos
   o rótulo ocupar a linha inteira dentro do box. */
.action-switch-control .ds-switch { width: 100%; gap: var(--space-md); }

.switch-label-text { color: var(--text); font-size: 0.9rem; font-weight: 500; }

/* ---------- Controle de tamanho ---------- */

.size-input-group {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.size-slider {
    flex: 1;
    appearance: none;
    -webkit-appearance: none;
    height: 6px;
    border-radius: var(--ds-radius-pill);
    background: var(--border-strong);
    outline: none;
    cursor: pointer;
}

.size-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--brand);
    border: 3px solid #ffffff;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.size-slider::-webkit-slider-thumb:hover { transform: scale(1.1); }

.size-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--brand);
    border: 3px solid #ffffff;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
}

.size-number-group {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    min-width: 120px;
    padding: 0.4rem var(--space-sm);
    background: var(--surface);
    border: 1px solid var(--border-strong);
    border-radius: var(--r-sm);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.size-number-group:focus-within { border-color: var(--brand); box-shadow: var(--ring); }

.size-number-input {
    width: 70px;
    border: none;
    background: transparent;
    color: var(--text);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    text-align: right;
    outline: none;
}

.size-unit { color: var(--text-3); font-size: 0.9rem; font-weight: 500; }

.size-hint { margin-top: var(--space-sm); color: var(--text-3); font-size: 0.84rem; }
.size-hint strong { color: var(--text); }

/* ---------- Previsão de tempo ---------- */

.time-estimate {
    margin: var(--space-lg) 0;
    padding: var(--space-md) var(--space-lg);
    background: var(--surface-alt);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
}

.time-estimate-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

.time-estimate-label {
    color: var(--text-3);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.16em;
}

.time-estimate-total {
    font-family: var(--font-display);
    color: var(--text);
    font-size: 1rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

/* ---------- Botões ---------- */
/* Base/variações vêm do DS (.ds-btn, --solid/--ghost, --block). Aqui só:
   sombra mais limpa no botão principal, espaçamento e estado .loading. */

/* O glow padrão do DS (0 0 22px) ficava esfumaçado/"sujo" ao redor.
   Troca por uma sombra nítida e direcional, tintada no acento. */
.ds-btn--solid {
    box-shadow: 0 6px 16px -6px color-mix(in srgb, var(--ds-accent) 60%, transparent);
}
.ds-btn--solid:hover {
    box-shadow: 0 10px 22px -8px color-mix(in srgb, var(--ds-accent) 70%, transparent);
}

#submit-btn { margin-top: var(--space-lg); }
#download-btn { margin-bottom: var(--space-md); color: #fff; }
#new-split-btn,
#retry-btn { margin-top: var(--space-sm); }

/* Botão de ação principal precisa de posição relativa para o spinner. */
.ds-btn.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.85;
}
.ds-btn.loading span { visibility: hidden; }

.ds-btn.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.45);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ---------- Progresso ---------- */

.progress-container { margin-top: var(--space-md); }

.progress-label {
    display: block;
    margin-bottom: var(--space-sm);
    color: var(--text);
    font-size: 0.9rem;
    font-weight: 600;
}

/* A barra (.ds-progress) e o preenchimento animado (.ds-progress-fill, com
   shimmer próprio) vêm do DS. Damos altura um pouco maior e glow no acento. */
.ds-progress { height: 10px; }
.ds-progress-fill {
    box-shadow: 0 0 14px var(--ds-accent-100);
    transition: width 0.4s ease;
}

/* Fase de envio: acento mais claro, para diferenciar do processamento (acento). */
.ds-progress-fill.upload-fill { background: var(--ds-accent-light); }

.progress-info {
    display: flex;
    justify-content: space-between;
    gap: var(--space-md);
    margin-top: var(--space-sm);
    color: var(--text-2);
    font-size: 0.85rem;
}

#progress-percent,
#upload-progress-percent {
    color: var(--text);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.workflow-eta {
    margin-top: var(--space-lg);
    padding: var(--space-md);
    color: var(--text-2);
    background: var(--surface-alt);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    font-size: 0.92rem;
    font-weight: 600;
    text-align: center;
    font-variant-numeric: tabular-nums;
}

/* ---------- Resultado ---------- */

.result-stats {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    margin-bottom: var(--space-xl);
    background: color-mix(in srgb, var(--ds-accent) 15%, #1e2230);
    border-radius: var(--r-md);
    overflow: hidden;
    box-shadow: var(--ds-shadow-block);
}

.stat {
    padding: var(--space-xl) var(--space-lg);
    text-align: center;
    background: color-mix(in srgb, var(--ds-accent) 12%, #252a3a);
}

.stat-value {
    display: block;
    margin-bottom: var(--space-xs);
    font-family: var(--font-display);
    color: var(--ds-accent-light);
    font-size: 2.1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    font-variant-numeric: tabular-nums;
}

.stat-label {
    color: var(--ds-on-dark-dim);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

/* Avisos e erro usam o componente .ds-alert do DS (cores/borda/ícone).
   Aqui só ajustamos a lista de avisos e a notinha de retenção (1h). */
#result-warnings { margin-bottom: var(--space-lg); }

.result-warnings-list {
    margin: 0.2rem 0 0;
    padding-left: var(--space-lg);
    font-size: 0.9rem;
    line-height: 1.5;
}
.result-warnings-list li + li { margin-top: var(--space-xs); }

.ds-alert--danger { margin-bottom: var(--space-xl); }

/* Notinha de retenção: texto auxiliar do DS (.ds-help) com ícone alinhado. */
.result-note {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
}
.result-note svg { flex-shrink: 0; }

/* Toasts: providos pelo design system (window.dsToast + .ds-toast). */

/* ---------- Rodapé ---------- */

/* Rodapé claro e enxuto (mesmo padrão da página do portfólio) */
.footer {
    margin-top: var(--space-md);
    padding: var(--space-xl) var(--space-sm);
    border-top: 1px solid var(--border);
}

.footer-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

/* Seletor de tema (claro/auto/escuro) no rodapé — só os botões.
   O .ds-segment.ds-mode usa tokens do DS, então adapta no claro e no escuro. */

.footer-brand {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text);
    letter-spacing: -0.02em;
}

.footer-brand .logo-accent { color: var(--ds-accent-light); }
.footer-copy { color: var(--text-3); font-size: 0.85rem; margin-top: 0.15rem; }

.footer-points {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer-points li {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-3);
    font-size: 0.8rem;
}

.footer-dot { width: 0.4rem; height: 0.4rem; border-radius: 50%; background: var(--brand); flex-shrink: 0; }

.footer a { color: var(--brand-text); text-decoration: none; }
.footer a:hover { text-decoration: underline; }

/* ---------- Animações ---------- */

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes fade-in-up { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

/* ============================================================
   ENVIO DE ARQUIVO — único bloco escuro (suave) do formulário.
   As demais áreas (opções, switch, tamanho, lista) ficam CLARAS
   para não pesar; o tema entra como contraste pontual aqui, com
   um dark suave (--ds-ink-soft), não o preto do hero.
   ============================================================ */
.drop-zone {
    background:
        radial-gradient(120% 90% at 50% -10%, color-mix(in srgb, var(--ds-accent) 18%, transparent), transparent 62%),
        var(--ds-ink-soft);
    border-color: rgba(255, 255, 255, 0.16);
}
.drop-zone:hover,
.drop-zone:focus-visible,
.drop-zone.drag-over {
    border-color: var(--ds-accent-light);
    background:
        radial-gradient(120% 90% at 50% -10%, color-mix(in srgb, var(--ds-accent) 30%, transparent), transparent 62%),
        var(--ds-ink-soft);
}
.drop-zone-icon {
    background: color-mix(in srgb, var(--ds-accent) 20%, transparent);
    border-color: color-mix(in srgb, var(--ds-accent) 40%, transparent);
    color: var(--ds-accent-light);
}
.drop-zone-text { color: var(--ds-on-dark); }
.drop-zone-text span,
.drop-zone-hint { color: var(--ds-on-dark-dim); }

/* ============================================================
   MODO ESCURO — quase tudo adapta sozinho (style.css deriva dos
   tokens --ds-*, que o DS reescreve em .ds-dark). Aqui só os poucos
   pontos com cor clara fixa específica do app.
   ============================================================ */
/* A faixa de pilares era um vidro branco translúcido; no escuro vira um
   painel escuro sutilmente elevado. */
.ds-dark .feature-band { background: rgba(255, 255, 255, 0.035); }

/* ---------- Responsivo ---------- */

@media (max-width: 720px) {
    .main-content { padding-top: 4.75rem; }
    .card { padding: var(--space-lg); }
    .header { min-height: 28rem; padding: 5rem var(--space-xl) var(--space-xl); }
    .header-meta { gap: var(--space-lg); width: 100%; }
    .feature-band { padding: var(--space-xl) var(--space-lg); }
    .feature-grid { grid-template-columns: 1fr; gap: var(--space-lg); }
    .footer-inner { flex-direction: column; align-items: flex-start; gap: var(--space-md); }
    .compress-options { grid-template-columns: 1fr 1fr; }
    .compress-opt-card { min-height: auto; }

    .size-input-group {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-md);
    }

    .size-number-group { align-self: flex-start; }
    .result-stats { grid-template-columns: 1fr; }

    .progress-info,
    .time-estimate-header,
    .file-list-header {
        align-items: flex-start;
        flex-direction: column;
        gap: var(--space-xs);
    }
}

@media (max-width: 440px) {
    .compress-options { grid-template-columns: 1fr; }
    .ds-nav-links { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .feature-band.is-visible .reveal-child { animation: none; }
    .ds-progress-fill::after { animation: none; }
}
