/**
 * Painel Revalida — Design System
 * Tokens únicos: cores, tipografia, radius, sombras, espaçamentos.
 * Usado por frontend.css e admin (quando aplicável).
 */

/* ========== Espaçamento (scale 4px) ========== */
:root {
    --ds-space-1: 4px;
    --ds-space-2: 8px;
    --ds-space-3: 12px;
    --ds-space-4: 16px;
    --ds-space-5: 20px;
    --ds-space-6: 24px;
    --ds-space-8: 32px;
    --ds-space-10: 40px;
    --ds-space-12: 48px;
}

/* ========== Tema escuro (padrão) ========== */
:root,
.prevalida-theme-dark {
    --caf-bg: #0b0d10;
    --caf-bg-soft: #12151b;
    --caf-card: rgba(20, 22, 28, 0.88);
    --caf-card-border: rgba(212, 168, 83, 0.12);
    --caf-accent: #d4a853;
    --caf-accent-hover: #e4b96a;
    --caf-accent-soft: rgba(212, 168, 83, 0.14);
    --caf-accent-glow: rgba(212, 168, 83, 0.2);
    --caf-primary: #c4952e;
    --caf-primary-hover: #d4a853;
    --caf-primary-soft: rgba(196, 149, 46, 0.15);
    --caf-text: #f0f1f3;
    --caf-text-muted: #8b8f98;
    --caf-border: rgba(139, 143, 152, 0.18);
    --caf-success: #4ade80;
    --caf-success-soft: rgba(74, 222, 128, 0.12);
    --caf-error: #f87171;
    --caf-error-soft: rgba(248, 113, 113, 0.14);
    --caf-warning: #fbbf24;
    --caf-glass: rgba(255, 255, 255, 0.04);
    --caf-radius: 14px;
    --caf-radius-sm: 10px;
    --caf-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
    --caf-shadow-card: 0 4px 20px rgba(0, 0, 0, 0.2);
    --caf-font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --caf-font-display: 'Manrope', sans-serif;
}

/* ========== Tema claro ========== */
.prevalida-theme-light {
    --caf-bg: #faf8f5;
    --caf-bg-soft: #f0ede8;
    --caf-card: rgba(255, 255, 255, 0.92);
    --caf-card-border: rgba(196, 149, 46, 0.15);
    --caf-accent: #b8860b;
    --caf-accent-hover: #c4952e;
    --caf-accent-soft: rgba(184, 134, 11, 0.12);
    --caf-accent-glow: rgba(184, 134, 11, 0.18);
    --caf-primary: #a67c00;
    --caf-primary-hover: #b8860b;
    --caf-primary-soft: rgba(166, 124, 0, 0.12);
    --caf-text: #1a1a1a;
    --caf-text-muted: #5c5c5c;
    --caf-border: rgba(0, 0, 0, 0.09);
    --caf-success: #15803d;
    --caf-success-soft: rgba(21, 128, 61, 0.12);
    --caf-error: #dc2626;
    --caf-error-soft: rgba(220, 38, 38, 0.12);
    --caf-warning: #b45309;
    --caf-glass: rgba(0, 0, 0, 0.04);
    --caf-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    --caf-shadow-card: 0 2px 16px rgba(0, 0, 0, 0.06);
}

/* ========== Componentes base (classes utilitárias) ========== */
/* Card */
.ds-card {
    background: var(--caf-card);
    border: 1px solid var(--caf-card-border);
    border-radius: var(--caf-radius);
    padding: var(--ds-space-6);
    box-shadow: var(--caf-shadow-card);
}

/* Barra de saldo */
.ds-saldo-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--ds-space-4);
    padding: var(--ds-space-4) var(--ds-space-6);
    background: var(--caf-card);
    border-bottom: 1px solid var(--caf-card-border);
}

/* Badge */
.ds-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--ds-space-1) var(--ds-space-3);
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
}
.ds-badge--success { background: var(--caf-success-soft); color: var(--caf-success); }
.ds-badge--accent { background: var(--caf-accent-soft); color: var(--caf-accent); }
.ds-badge--muted { background: var(--caf-glass); color: var(--caf-text-muted); }

/* Botão */
.ds-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--ds-space-3) var(--ds-space-5);
    border-radius: var(--caf-radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    font-family: var(--caf-font);
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: background 0.2s, color 0.2s, transform 0.15s;
}
.ds-btn--primary {
    background: linear-gradient(135deg, var(--caf-primary) 0%, var(--caf-accent) 100%);
    color: #fff;
}
.ds-btn--primary:hover {
    background: linear-gradient(135deg, var(--caf-primary-hover) 0%, var(--caf-accent-hover) 100%);
    transform: translateY(-1px);
}
.ds-btn--secondary {
    background: var(--caf-glass);
    color: var(--caf-text);
    border: 1px solid var(--caf-border);
}
.ds-btn--secondary:hover { background: var(--caf-border); }
.ds-btn--full { width: 100%; }

/* Input */
.ds-input {
    width: 100%;
    padding: var(--ds-space-3) var(--ds-space-4);
    border-radius: var(--caf-radius-sm);
    border: 1px solid var(--caf-border);
    background: var(--caf-bg-soft);
    color: var(--caf-text);
    font-size: 0.95rem;
    font-family: var(--caf-font);
    transition: border-color 0.2s, box-shadow 0.2s;
}
.ds-input:focus {
    outline: none;
    border-color: var(--caf-accent);
    box-shadow: 0 0 0 3px var(--caf-accent-glow);
}
.ds-input.is-valid { border-color: var(--caf-success); }
.ds-input.is-invalid { border-color: var(--caf-error); }

/* Alert */
.ds-alert {
    padding: var(--ds-space-3) var(--ds-space-4);
    border-radius: var(--caf-radius-sm);
    font-size: 0.9rem;
    margin-bottom: var(--ds-space-4);
}
.ds-alert--danger {
    background: var(--caf-error-soft);
    color: var(--caf-error);
    border: 1px solid rgba(248, 113, 113, 0.3);
}
.ds-alert--success {
    background: var(--caf-success-soft);
    color: var(--caf-success);
    border: 1px solid rgba(74, 222, 128, 0.3);
}
.ds-alert--info {
    background: var(--caf-accent-soft);
    color: var(--caf-accent);
    border: 1px solid var(--caf-accent-glow);
}

/* Tabs */
.ds-tabs {
    display: flex;
    gap: var(--ds-space-2);
    margin-bottom: var(--ds-space-6);
    border-bottom: 1px solid var(--caf-border);
}
.ds-tab {
    padding: var(--ds-space-3) var(--ds-space-5);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--caf-text-muted);
    background: none;
    border: none;
    border-radius: var(--caf-radius-sm);
    cursor: pointer;
    transition: color 0.2s, background 0.2s;
}
.ds-tab:hover { color: var(--caf-text); }
.ds-tab.active {
    color: var(--caf-primary);
    background: var(--caf-primary-soft);
}

/* Tabela */
.ds-table {
    width: 100%;
    border-collapse: collapse;
}
.ds-table th,
.ds-table td {
    padding: var(--ds-space-3) var(--ds-space-4);
    text-align: left;
    border-bottom: 1px solid var(--caf-border);
}
.ds-table th {
    color: var(--caf-text-muted);
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.ds-table tbody tr:hover { background: var(--caf-glass); }

/* Modal overlay */
.ds-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(11, 13, 16, 0.88);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: var(--ds-space-6);
}
.ds-modal {
    background: var(--caf-card);
    border: 1px solid var(--caf-card-border);
    border-radius: 18px;
    max-width: 420px;
    width: 100%;
    padding: var(--ds-space-6);
    box-shadow: var(--caf-shadow);
}

/* Skeleton (loading) */
.ds-skeleton {
    background: linear-gradient(90deg, var(--caf-glass) 25%, var(--caf-border) 50%, var(--caf-glass) 75%);
    background-size: 200% 100%;
    animation: ds-skeleton 1.2s ease-in-out infinite;
    border-radius: var(--caf-radius-sm);
}
@keyframes ds-skeleton {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Estado vazio */
.ds-empty {
    text-align: center;
    padding: var(--ds-space-12) var(--ds-space-6);
    color: var(--caf-text-muted);
    background: var(--caf-glass);
    border: 1px dashed var(--caf-border);
    border-radius: var(--caf-radius);
    margin: 0;
}
.ds-empty__icon { font-size: 2.75rem; margin-bottom: var(--ds-space-4); opacity: 0.6; display: block; }
.ds-empty__title { font-size: 1.1rem; font-weight: 600; color: var(--caf-text); margin-bottom: var(--ds-space-2); font-family: var(--caf-font-display); }
.ds-empty__desc { font-size: 0.95rem; margin-bottom: var(--ds-space-2); line-height: 1.5; }
.ds-empty__action { margin-top: var(--ds-space-5); }

/* Estados de UI (loading, sucesso, erro) — uso opcional */
.ds-state-loading {
    position: relative;
    pointer-events: none;
    opacity: 0.85;
}
.ds-state-loading::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0.05);
    border-radius: inherit;
    animation: ds-pulse 1.2s ease-in-out infinite;
}
@keyframes ds-pulse {
    0%, 100% { opacity: 0; }
    50% { opacity: 1; }
}

/* Progress (linha no topo do card) */
.ds-progress-line {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--caf-border);
    overflow: hidden;
    border-radius: var(--caf-radius) var(--caf-radius) 0 0;
}
.ds-progress-line::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 40%;
    background: var(--caf-accent);
    animation: ds-progress 1.2s ease-in-out infinite;
}
@keyframes ds-progress {
    0% { left: -40%; }
    100% { left: 100%; }
}