/**
 * HİSSİYAD Design System v1 — Design Tokens
 * Single source of truth for colors, typography, spacing, shadows, motion.
 * Light mode primary. Dark mode ready (disabled by default).
 */

:root {
    /* ── Brand Colors ── */
    --hissiyad-terra: #A04C3C;
    --hissiyad-copper: #B48052;
    --hissiyad-gold: #D4A574;
    --hissiyad-cream: #FBF8F3;
    --hissiyad-dark: #1A1512;
    --hissiyad-paper: #F5F1E8;

    /* ── Primary Palette ── */
    --color-primary: var(--hissiyad-copper);
    --color-primary-hover: var(--hissiyad-terra);
    --color-primary-light: #F5EDE4;
    --color-primary-subtle: rgba(180, 128, 82, 0.08);

    /* ── Neutral Scale ── */
    --color-bg: var(--hissiyad-cream);
    --color-surface: #FFFFFF;
    --color-surface-raised: #FFFFFF;
    --color-border: #E8E2D8;
    --color-border-light: #F0EBE3;
    --color-text: var(--hissiyad-dark);
    --color-text-secondary: #6B6560;
    --color-text-tertiary: #9B958E;
    --color-text-inverse: #FFFFFF;

    /* ── Semantic Colors ── */
    --color-success: #2E7D32;
    --color-success-light: #E8F5E9;
    --color-warning: #F57F17;
    --color-warning-light: #FFF8E1;
    --color-error: #C62828;
    --color-error-light: #FFEBEE;
    --color-info: #1565C0;
    --color-info-light: #E3F2FD;

    /* ── Typography Scale ── */
    --font-serif: 'Cormorant Garamond', 'Georgia', serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Consolas', monospace;

    /* Mobile-first sizes (rem) */
    --text-xs: 0.75rem;    /* 12px */
    --text-sm: 0.8125rem;  /* 13px */
    --text-base: 0.875rem; /* 14px */
    --text-md: 1rem;       /* 16px */
    --text-lg: 1.125rem;   /* 18px */
    --text-xl: 1.375rem;   /* 22px */
    --text-2xl: 1.75rem;   /* 28px */
    --text-3xl: 2.25rem;   /* 36px */

    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.75;

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

    /* ── Spacing Scale ── */
    --space-1: 0.25rem;   /* 4px */
    --space-2: 0.5rem;    /* 8px */
    --space-3: 0.75rem;   /* 12px */
    --space-4: 1rem;      /* 16px */
    --space-5: 1.25rem;   /* 20px */
    --space-6: 1.5rem;    /* 24px */
    --space-8: 2rem;      /* 32px */
    --space-10: 2.5rem;   /* 40px */
    --space-12: 3rem;     /* 48px */
    --space-16: 4rem;     /* 64px */

    /* ── Border Radius ── */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* ── Shadows ── */
    --shadow-xs: 0 1px 2px rgba(26, 21, 18, 0.04);
    --shadow-sm: 0 2px 4px rgba(26, 21, 18, 0.06);
    --shadow-md: 0 4px 12px rgba(26, 21, 18, 0.08);
    --shadow-lg: 0 8px 24px rgba(26, 21, 18, 0.10);
    --shadow-xl: 0 16px 48px rgba(26, 21, 18, 0.12);

    /* ── Z-index Scale ── */
    --z-base: 0;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-overlay: 300;
    --z-modal: 400;
    --z-toast: 500;
    --z-tooltip: 600;

    /* ── Motion ── */
    --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --duration-fast: 150ms;
    --duration-normal: 250ms;
    --duration-slow: 400ms;

    /* ── Layout ── */
    --nav-height: 60px;
    --max-content: 680px;
    --max-page: 1200px;
    --sidebar-width: 280px;

    /* ── Alpha Variants (for shadows, overlays, borders) ── */
    --color-primary-alpha-03: rgba(180, 128, 82, 0.03);
    --color-primary-alpha-05: rgba(180, 128, 82, 0.05);
    --color-primary-alpha-06: rgba(180, 128, 82, 0.06);
    --color-primary-alpha-07: rgba(180, 128, 82, 0.07);
    --color-primary-alpha-08: rgba(180, 128, 82, 0.08);
    --color-primary-alpha-10: rgba(180, 128, 82, 0.1);
    --color-primary-alpha-12: rgba(180, 128, 82, 0.12);
    --color-primary-alpha-15: rgba(180, 128, 82, 0.15);
    --color-primary-alpha-20: rgba(180, 128, 82, 0.2);
    --color-primary-alpha-30: rgba(180, 128, 82, 0.3);
    --color-primary-alpha-35: rgba(180, 128, 82, 0.35);
    --color-primary-alpha-40: rgba(180, 128, 82, 0.4);
    --color-primary-alpha-60: rgba(180, 128, 82, 0.6);
    --color-terra-alpha-08: rgba(160, 76, 60, 0.08);
    --color-terra-alpha-10: rgba(160, 76, 60, 0.1);
    --color-terra-alpha-12: rgba(160, 76, 60, 0.12);
    --color-terra-alpha-20: rgba(160, 76, 60, 0.2);
    --color-terra-alpha-40: rgba(160, 76, 60, 0.4);
    --color-dark-alpha-04: rgba(26, 21, 18, 0.04);
    --color-dark-alpha-05: rgba(26, 21, 18, 0.05);
    --color-dark-alpha-07: rgba(26, 21, 18, 0.07);
    --color-dark-alpha-10: rgba(26, 21, 18, 0.1);
    --color-dark-alpha-14: rgba(26, 21, 18, 0.14);
    --color-dark-alpha-50: rgba(26, 21, 18, 0.5);
    --color-dark-alpha-80: rgba(26, 21, 18, 0.8);
    --color-dark-alpha-95: rgba(26, 21, 18, 0.95);
}

/* Desktop overrides */
@media (min-width: 768px) {
    :root {
        --text-base: 0.9375rem; /* 15px */
        --text-md: 1.0625rem;   /* 17px */
        --text-lg: 1.25rem;     /* 20px */
        --text-xl: 1.5rem;      /* 24px */
        --text-2xl: 2rem;       /* 32px */
        --text-3xl: 2.75rem;    /* 44px */
        --nav-height: 64px;
    }
}