/* ============================================================================
   TasadorTM — Design tokens
   Variables de color, tipografía, espaciado, radios, sombras y transiciones.
   Tema claro por defecto; oscuro automático (prefers-color-scheme) con
   override explícito mediante [data-theme="dark"|"light"].
   ============================================================================ */

:root {
    color-scheme: light;

    /* Paleta de marca (navy) */
    --brand-50: #eef4fb;
    --brand-100: #d9e7f5;
    --brand-200: #b3cdeb;
    --brand-300: #85aedb;
    --brand-400: #4f83c2;
    --brand-500: #2f62a3;
    --brand-600: #214d87;
    --brand-700: #1b3a5b;
    --brand-800: #142c46;
    --brand-900: #0d1e32;

    /* Acento interactivo (azul) */
    --accent-300: #93c5fd;
    --accent-400: #60a5fa;
    --accent-500: #3b82f6;
    --accent-600: #2563eb;
    --accent-700: #1d4ed8;

    /* Neutros */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    /* Semánticos */
    --green-50: #dcfce7;
    --green-200: #bbf7d0;
    --green-600: #16a34a;
    --green-700: #15803d;
    --amber-50: #fef3c7;
    --amber-200: #fde68a;
    --amber-600: #d97706;
    --amber-700: #b45309;
    --red-50: #fee2e2;
    --red-200: #fecaca;
    --red-600: #dc2626;
    --red-700: #b91c1c;
    --violet-50: #ede9fe;
    --violet-700: #6d28d9;

    /* Superficies y texto */
    --color-bg: var(--gray-50);
    --color-surface: #ffffff;
    --color-surface-2: var(--gray-100);
    --color-border: var(--gray-200);
    --color-border-strong: var(--gray-300);
    --color-text: var(--gray-800);
    --color-text-muted: var(--gray-600);
    --color-text-subtle: var(--gray-500);
    --color-heading: var(--gray-900);

    /* Marca / interacción */
    --color-header-bg: var(--brand-700);
    --color-header-text: #ffffff;
    --color-header-muted: #cbd5e1;
    --color-primary: var(--accent-600);
    --color-primary-hover: var(--accent-700);
    --color-primary-contrast: #ffffff;
    --color-focus: var(--accent-500);

    /* Estados */
    --color-success-bg: var(--green-50);
    --color-success-text: var(--green-700);
    --color-success-border: var(--green-200);
    --color-warning-bg: var(--amber-50);
    --color-warning-text: var(--amber-700);
    --color-warning-border: var(--amber-200);
    --color-danger-bg: var(--red-50);
    --color-danger-text: var(--red-700);
    --color-danger-border: var(--red-200);
    --color-info-bg: #dbeafe;
    --color-info-text: var(--accent-700);
    --color-info-border: var(--accent-300);
    --color-neutral-bg: var(--gray-200);
    --color-neutral-text: var(--gray-700);
    --color-duplicate-bg: var(--violet-50);
    --color-duplicate-text: var(--violet-700);

    /* Tipografía */
    --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --leading-tight: 1.2;
    --leading-normal: 1.55;

    /* Espaciado (base 4px) */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;

    /* Radios */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-pill: 999px;

    /* Sombras */
    --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.06);
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08), 0 2px 4px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.14);

    /* Layout y transiciones */
    --container-max: 1180px;
    --header-height: 4rem;
    --transition-fast: 120ms ease;
    --transition: 200ms ease;
}

/* Oscuro automático (salvo override explícito a claro) */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        color-scheme: dark;

        --color-bg: #0b1220;
        --color-surface: #111a2b;
        --color-surface-2: #172033;
        --color-border: #24304a;
        --color-border-strong: #33415c;
        --color-text: #e2e8f0;
        --color-text-muted: #a8b3c5;
        --color-text-subtle: #8593a8;
        --color-heading: #f1f5f9;

        --color-header-bg: #0d1728;
        --color-header-text: #f1f5f9;
        --color-header-muted: #94a3b8;
        --color-primary: var(--accent-500);
        --color-primary-hover: var(--accent-400);
        --color-primary-contrast: #06121f;

        --color-success-bg: rgba(22, 163, 74, 0.18);
        --color-success-text: #6ee7a8;
        --color-success-border: rgba(22, 163, 74, 0.4);
        --color-warning-bg: rgba(217, 119, 6, 0.18);
        --color-warning-text: #fcd34d;
        --color-warning-border: rgba(217, 119, 6, 0.4);
        --color-danger-bg: rgba(220, 38, 38, 0.18);
        --color-danger-text: #fca5a5;
        --color-danger-border: rgba(220, 38, 38, 0.4);
        --color-info-bg: rgba(37, 99, 235, 0.2);
        --color-info-text: #93c5fd;
        --color-info-border: rgba(59, 130, 246, 0.4);
        --color-neutral-bg: #24304a;
        --color-neutral-text: #cbd5e1;
        --color-duplicate-bg: rgba(109, 40, 217, 0.22);
        --color-duplicate-text: #c4b5fd;

        --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.4);
        --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.5);
        --shadow-md: 0 6px 18px rgba(0, 0, 0, 0.5);
        --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.55);
    }
}

/* Override explícito a oscuro (para un futuro toggle) */
:root[data-theme="dark"] {
    color-scheme: dark;

    --color-bg: #0b1220;
    --color-surface: #111a2b;
    --color-surface-2: #172033;
    --color-border: #24304a;
    --color-border-strong: #33415c;
    --color-text: #e2e8f0;
    --color-text-muted: #a8b3c5;
    --color-text-subtle: #8593a8;
    --color-heading: #f1f5f9;

    --color-header-bg: #0d1728;
    --color-header-text: #f1f5f9;
    --color-header-muted: #94a3b8;
    --color-primary: var(--accent-500);
    --color-primary-hover: var(--accent-400);
    --color-primary-contrast: #06121f;

    --color-success-bg: rgba(22, 163, 74, 0.18);
    --color-success-text: #6ee7a8;
    --color-success-border: rgba(22, 163, 74, 0.4);
    --color-warning-bg: rgba(217, 119, 6, 0.18);
    --color-warning-text: #fcd34d;
    --color-warning-border: rgba(217, 119, 6, 0.4);
    --color-danger-bg: rgba(220, 38, 38, 0.18);
    --color-danger-text: #fca5a5;
    --color-danger-border: rgba(220, 38, 38, 0.4);
    --color-info-bg: rgba(37, 99, 235, 0.2);
    --color-info-text: #93c5fd;
    --color-info-border: rgba(59, 130, 246, 0.4);
    --color-neutral-bg: #24304a;
    --color-neutral-text: #cbd5e1;
    --color-duplicate-bg: rgba(109, 40, 217, 0.22);
    --color-duplicate-text: #c4b5fd;

    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 6px 18px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.55);
}