/* ══════════════════════════════════════════════════════════
   Design Token System — AI Skin Engine API Contract
   All ~80 CSS custom properties that AI can control.
   ══════════════════════════════════════════════════════════ */

/* ── Color System (14 tokens) ── */
:root {
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-primary-light: #dbeafe;
    --color-secondary: #7c3aed;
    --color-accent: #f59e0b;
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8fafc;
    --color-text-primary: #0f172a;
    --color-text-secondary: #64748b;
    --color-border: #e2e8f0;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-info: #3b82f6;
    /* ── Semantic Text-on-* Colors (4 tokens) ── */
    --color-on-success: #ffffff;
    --color-on-warning: #ffffff;
    --color-on-error: #ffffff;
    --color-on-info: #ffffff;
    /* ── Spacing Scale (8 tokens) ── */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    /* ── Typography (14 tokens) ── */
    --font-family-base: 'Inter', system-ui, -apple-system, sans-serif;
    --font-family-heading: 'Inter', system-ui, -apple-system, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 700;
    --line-height-tight: 1.25;
    --line-height-base: 1.5;
    --line-height-relaxed: 1.75;
    /* ── Border Radius (6 tokens) ── */
    --radius-none: 0;
    --radius-sm: 0.25rem;
    --radius-base: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    /* ── Shadows (4 tokens) ── */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-base: 0 1px 3px 0 rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    /* ── Transitions & Animation (4 tokens) ── */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    --animation-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    /* ── Borders (2 tokens) ── */
    --border-width: 1px;
    --border-style: solid;
    /* ── Header & Footer (6 tokens) ── */
    --header-bg: var(--color-bg-primary);
    --header-text: var(--color-text-primary);
    --header-height: 4rem;
    --footer-bg: var(--color-primary);
    --footer-text: var(--color-bg-primary);
    /* ── Footer tokens (used by AI skin Rule #6) ── */
    --color-bg-footer: #232323;
    --color-footer-text: #cfcfcf;
    --color-footer-heading: #ffffff;
    --color-footer-link: #cfcfcf;
    --color-footer-link-hover: var(--color-primary);
    /* ── Layout (6 tokens) ── */
    --container-max-width: 1280px;
    --sidebar-width: 280px;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal: 400;
    --z-toast: 500;
    /* ── Dropdown nav panel — always light bg + dark text regardless of theme ── */
    --color-dropdown-bg: #ffffff;
    --color-dropdown-text: #1a1a1a;
    /* ── RGB variants for opacity compositing ── */
    --color-primary-rgb: 37, 99, 235;
    --color-secondary-rgb: 124, 58, 237;
    --color-accent-rgb: 245, 158, 11;
    --color-success-rgb: 10, 185, 129;
    --color-warning-rgb: 245, 158, 11;
    --color-error-rgb: 239, 68, 68;
    /* ── Zone bands (Phase B) — bounded areas that MAY use dark/saturated brand colors.
       Unlike --color-bg* (page surfaces, must stay light), these are self-contained strips
       with their own text token, so a dark value cannot leak into body content.
       Defaults reproduce the current light look exactly (zero visual change). ── */
    --zone-trust-bg: var(--color-bg-primary);          /* trust-badge bar above footer */
    --zone-trust-text: var(--color-text-primary);
    --zone-section-title-color: var(--color-text-primary);  /* "Flash Sales" / "Best Sellers" headings */
    --zone-section-title-accent: var(--color-primary);      /* decorative accent under section titles */
    --zone-band-bg: transparent;                       /* optional full-width promo band (.shop-section.zone-band) */
    --zone-band-text: var(--color-text-primary);
}

/* ── Zone consumption — unlayered, so these beat @layer legacy without !important.
   Defaults above chain back to the existing colors: no skin → no visual change. ── */
.footer_above_container-outer { background-color: var(--zone-trust-bg); }
.footer_above_container .footer_above_text { color: var(--zone-trust-text); }
.halo-block-header .title { color: var(--zone-section-title-color); }