/* StitchKit — design tokens (Warm Linen). Fonte única de verdade da paleta,
   tipografia, motion e spacing. Importado antes de main.css. */

:root {
    /* Palette — Warm Linen (light default) */
    --sk-color-bg: #FAF7F2;
    --sk-color-surface: #FFFFFF;
    --sk-color-surface-alt: #F4EFE5;
    --sk-color-border: #E7E2D8;
    --sk-color-border-strong: #D6CFBF;
    --sk-color-ink: #1C1917;
    --sk-color-ink-soft: #44403C;
    --sk-color-muted: #57534E;
    --sk-color-subtle: #A8A29E;

    --sk-color-accent: #C2410C;
    --sk-color-accent-hover: #9A3412;
    --sk-color-accent-active: #7C2D12;
    --sk-color-accent-soft: rgba(194, 65, 12, 0.10);
    --sk-color-accent-contrast: #FFFFFF;

    --sk-color-secondary: #78716C;
    --sk-color-secondary-soft: rgba(120, 113, 108, 0.10);
    --sk-color-ochre: #A16207;

    --sk-color-success: #15803D;
    --sk-color-success-soft: rgba(21, 128, 61, 0.10);
    --sk-color-warn: #B45309;
    --sk-color-warn-soft: rgba(180, 83, 9, 0.10);
    --sk-color-danger: #B91C1C;
    --sk-color-danger-soft: rgba(185, 28, 28, 0.10);

    /* Canvas — where the user's design lives */
    --sk-color-canvas-bg: #F4EFE5;
    --sk-color-canvas-grid: #E7E2D8;

    /* Typography — Fraunces (display) + Inter (body) + JetBrains Mono (mono) */
    --sk-font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
    --sk-font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    --sk-font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
    /* Backwards-compat alias — existing main.css uses --sk-font */
    --sk-font: var(--sk-font-body);

    --sk-text-xs: 11px;
    --sk-text-sm: 12px;
    --sk-text-base: 13px;
    --sk-text-md: 14px;
    --sk-text-lg: 16px;
    --sk-text-xl: 20px;
    --sk-text-2xl: 24px;
    --sk-text-3xl: 32px;
    --sk-text-4xl: 48px;
    --sk-text-5xl: 64px;

    --sk-weight-regular: 400;
    --sk-weight-medium: 500;
    --sk-weight-semibold: 600;
    --sk-weight-bold: 700;

    --sk-leading-tight: 1.15;
    --sk-leading-snug: 1.3;
    --sk-leading-normal: 1.5;
    --sk-leading-relaxed: 1.65;

    /* Spacing scale (4px base) */
    --sk-space-0: 0;
    --sk-space-1: 4px;
    --sk-space-2: 8px;
    --sk-space-3: 12px;
    --sk-space-4: 16px;
    --sk-space-5: 20px;
    --sk-space-6: 24px;
    --sk-space-8: 32px;
    --sk-space-10: 40px;
    --sk-space-12: 48px;
    --sk-space-16: 64px;
    --sk-space-24: 96px;
    /* Backwards-compat alias */
    --sk-gap: var(--sk-space-3);

    /* Radius */
    --sk-radius-xs: 4px;
    --sk-radius-sm: 6px;
    --sk-radius-md: 10px;
    --sk-radius-lg: 14px;
    --sk-radius-xl: 20px;
    --sk-radius-2xl: 28px;
    --sk-radius-full: 9999px;
    /* Backwards-compat */
    --sk-radius: var(--sk-radius-md);

    /* Shadows — low-contrast warm tone so cards lift gently on linen */
    --sk-shadow-xs: 0 1px 1px rgba(28, 25, 23, 0.04);
    --sk-shadow-sm: 0 1px 2px rgba(28, 25, 23, 0.06), 0 1px 1px rgba(28, 25, 23, 0.04);
    --sk-shadow-md: 0 4px 12px rgba(28, 25, 23, 0.07), 0 2px 4px rgba(28, 25, 23, 0.04);
    --sk-shadow-lg: 0 8px 24px rgba(28, 25, 23, 0.10), 0 4px 8px rgba(28, 25, 23, 0.05);
    --sk-shadow-xl: 0 16px 48px rgba(28, 25, 23, 0.14), 0 8px 16px rgba(28, 25, 23, 0.06);
    --sk-focus-ring: 0 0 0 3px var(--sk-color-accent-soft);

    /* Motion — easings */
    --sk-ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
    --sk-ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --sk-ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --sk-ease-in-quart: cubic-bezier(0.5, 0, 0.75, 0);
    --sk-ease-shake: cubic-bezier(0.36, 0.07, 0.19, 0.97);

    /* Motion — durations */
    --sk-duration-instant: 80ms;
    --sk-duration-fast: 180ms;
    --sk-duration-medium: 280ms;
    --sk-duration-slow: 500ms;
    --sk-duration-hero: 700ms;

    /* Z-index scale */
    --sk-z-base: 0;
    --sk-z-elevated: 10;
    --sk-z-toolbar: 20;
    --sk-z-dropdown: 40;
    --sk-z-modal: 100;
    --sk-z-toast: 200;

    /* Layout constants */
    --sk-topbar-height: 48px;
    --sk-statusbar-height: 24px;
    --sk-sidebar-rail: 48px;
    --sk-sidebar-default: 260px;
    --sk-panel-default: 320px;
}

/* Dark mode — triggered by data-theme on <html> or <body> */
[data-theme='dark'] {
    --sk-color-bg: #1C1917;
    --sk-color-surface: #292524;
    --sk-color-surface-alt: #3F3A36;
    --sk-color-border: #3F3A36;
    --sk-color-border-strong: #57534E;
    --sk-color-ink: #FAFAF9;
    --sk-color-ink-soft: #E7E5E4;
    --sk-color-muted: #A8A29E;
    --sk-color-subtle: #78716C;

    --sk-color-accent: #F97316;
    --sk-color-accent-hover: #FB923C;
    --sk-color-accent-active: #EA580C;
    --sk-color-accent-soft: rgba(249, 115, 22, 0.16);
    --sk-color-accent-contrast: #1C1917;

    --sk-color-secondary: #A8A29E;
    --sk-color-secondary-soft: rgba(168, 162, 158, 0.12);
    --sk-color-ochre: #EAB308;

    --sk-color-success: #22C55E;
    --sk-color-success-soft: rgba(34, 197, 94, 0.14);
    --sk-color-warn: #F59E0B;
    --sk-color-warn-soft: rgba(245, 158, 11, 0.14);
    --sk-color-danger: #EF4444;
    --sk-color-danger-soft: rgba(239, 68, 68, 0.14);

    --sk-color-canvas-bg: #1A1917;
    --sk-color-canvas-grid: #3F3A36;

    --sk-shadow-xs: 0 1px 1px rgba(0, 0, 0, 0.25);
    --sk-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3), 0 1px 1px rgba(0, 0, 0, 0.2);
    --sk-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.35), 0 2px 4px rgba(0, 0, 0, 0.2);
    --sk-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4), 0 4px 8px rgba(0, 0, 0, 0.25);
    --sk-shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.5), 0 8px 16px rgba(0, 0, 0, 0.3);
}

/* Auto-dark via system preference when user hasn't chosen explicitly */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme='light']) {
        --sk-color-bg: #1C1917;
        --sk-color-surface: #292524;
        --sk-color-surface-alt: #3F3A36;
        --sk-color-border: #3F3A36;
        --sk-color-border-strong: #57534E;
        --sk-color-ink: #FAFAF9;
        --sk-color-ink-soft: #E7E5E4;
        --sk-color-muted: #A8A29E;
        --sk-color-subtle: #78716C;

        --sk-color-accent: #F97316;
        --sk-color-accent-hover: #FB923C;
        --sk-color-accent-active: #EA580C;
        --sk-color-accent-soft: rgba(249, 115, 22, 0.16);
        --sk-color-accent-contrast: #1C1917;

        --sk-color-secondary: #A8A29E;
        --sk-color-secondary-soft: rgba(168, 162, 158, 0.12);
        --sk-color-ochre: #EAB308;

        --sk-color-success: #22C55E;
        --sk-color-success-soft: rgba(34, 197, 94, 0.14);
        --sk-color-warn: #F59E0B;
        --sk-color-warn-soft: rgba(245, 158, 11, 0.14);
        --sk-color-danger: #EF4444;
        --sk-color-danger-soft: rgba(239, 68, 68, 0.14);

        --sk-color-canvas-bg: #1A1917;
        --sk-color-canvas-grid: #3F3A36;
    }
}

/* Reduced motion — colapsa durações para algo quase-instantâneo.
   Animações funcionais (ex. stitch playback) devem opt-out deste override
   usando a propriedade custom directa em vez do token partilhado. */
@media (prefers-reduced-motion: reduce) {
    :root {
        --sk-duration-instant: 1ms;
        --sk-duration-fast: 1ms;
        --sk-duration-medium: 1ms;
        --sk-duration-slow: 1ms;
        --sk-duration-hero: 1ms;
    }

    *,
    *::before,
    *::after {
        animation-duration: 1ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 1ms !important;
        scroll-behavior: auto !important;
    }
}