/* ============================================
   Design System Variables - Isekai NextGen
   Luxury Monochrome & Gold Palette
   ============================================ */

:root {
    /* ===== Monochrome Palette (Luxury) ===== */
    /* Primary Foundation (Blacks & Charcoals) */
    --color-primary-50: #f4f4f4;
    /* Warm Paper White */
    --color-primary-100: #e5e5e5;
    --color-primary-200: #cccccc;
    --color-primary-300: #999999;
    --color-primary-400: #666666;
    --color-primary-500: #444444;
    --color-primary-600: #333333;
    --color-primary-700: #222222;
    --color-primary-800: #1a1a1a;
    --color-primary-900: #121212;
    /* Deepest Charcoal */
    --color-primary-950: #0a0a0a;
    /* Near Black */

    /* Accent Colors (Gold/Bronze/Champagne) */
    /* Elegant Gold */
    --color-accent-50: #fbf9f2;
    --color-accent-100: #f4efdc;
    --color-accent-200: #e9deb9;
    --color-accent-300: #dec68b;
    --color-accent-400: #d4af37;
    /* Metallic Gold */
    --color-accent-500: #b59021;
    --color-accent-600: #8c6b16;
    --color-accent-700: #664d10;
    --color-accent-800: #44330b;
    --color-accent-900: #2a1f06;

    /* Neutral/Structure Colors */
    --color-neutral-50: #ffffff;
    --color-neutral-100: #fafafa;
    --color-neutral-200: #f0f0f0;
    --color-neutral-300: #e0e0e0;
    --color-neutral-400: #bdbdbd;
    --color-neutral-500: #9e9e9e;
    --color-neutral-600: #757575;
    --color-neutral-700: #616161;
    --color-neutral-800: #424242;
    --color-neutral-900: #212121;

    /* Semantic Colors (Muted for Elegance) */
    --color-success: #2e5c3e;
    /* Forest Green */
    --color-warning: #b08d55;
    /* Gold Warning */
    --color-error: #8a3333;
    /* Deep Red */
    --color-info: #444444;
    /* Charcoal Info */

    /* ===== Theme Colors ===== */
    --bg-primary: #fdfdfd;
    /* Pure Paper */
    --bg-secondary: #f7f7f7;
    /* Warm Surface */
    --bg-tertiary: #eeeeee;
    /* Soft Elevation */
    --bg-elevated: #ffffff;
    /* Pure Surface */

    --text-primary: #050505;
    /* Deep Obsidian */
    --text-secondary: #444444;
    --text-tertiary: #888888;

    --border-color: rgba(0, 0, 0, 0.05);
    /* Razor thin borders */
    --border-razor: 0.5px solid rgba(0, 0, 0, 0.08);
    --border-color-strong: #050505;
    --shadow-color: rgba(0, 0, 0, 0.03);

    /* ===== Gradients & Glass ===== */
    --gradient-primary: linear-gradient(to right, #050505, #222222);
    --gradient-gold: linear-gradient(135deg, #d4af37 0%, #b59021 100%);

    --glass-bg: rgba(253, 253, 253, 0.85);
    --glass-border: rgba(0, 0, 0, 0.05);
    --glass-blur: 20px;
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);

    /* ===== Spacing System (Generous Whitespace) ===== */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 3rem;
    --space-2xl: 4.5rem;
    --space-3xl: 6rem;
    --space-4xl: 7rem;
    --space-5xl: 9rem;

    /* ===== Typography (Editorial) ===== */
    --font-family-primary: 'Inter', sans-serif;
    --font-family-heading: 'Playfair Display', serif;

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.35rem;
    --font-size-2xl: 1.75rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3.5rem;
    --font-size-5xl: 5rem;
    --font-size-6xl: 7rem;
    --font-size-7xl: 9rem;

    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    --line-height-tight: 1.1;
    --line-height-normal: 1.6;
    --line-height-relaxed: 1.9;

    /* ===== Edges (Sharp/Minimal) ===== */
    --radius-sm: 0px;
    --radius-md: 0px;
    --radius-lg: 0px;
    --radius-xl: 0px;
    --radius-2xl: 0px;
    --radius-full: 9999px;

    /* ===== Shadows (Minimal/Flat) ===== */
    --shadow-sm: none;
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.08);

    /* ===== Transitions (Slow/Elegant) ===== */
    --transition-base: 350ms cubic-bezier(0.165, 0.84, 0.44, 1);
    --transition-slow: 700ms cubic-bezier(0.165, 0.84, 0.44, 1);

    /* ===== Z-Index Scale ===== */
    --z-dropdown: 100;
    --z-sticky: 500;
    --z-fixed: 1000;
    --z-modal: 2000;

    /* ===== Container ===== */
    --container-max-width: 1440px;
    --container-padding: 5vw;
}

/* ===== Dark Mode (Obsidian Luxury) ===== */
[data-theme="dark"] {
    --bg-primary: #050505;
    /* Deepest Obsidian */
    --bg-secondary: #0d0d0d;
    /* Elevated Carbon */
    --bg-tertiary: #111111;
    --bg-elevated: #151515;

    --text-primary: #f4f4f4;
    /* Paper White */
    --text-secondary: #aaaaaa;
    --text-tertiary: #666666;

    --border-color: rgba(255, 255, 255, 0.05);
    --border-razor: 0.5px solid rgba(255, 255, 255, 0.08);
    --border-color-strong: #f4f4f4;
    --shadow-color: rgba(0, 0, 0, 0.8);

    --glass-bg: rgba(5, 5, 5, 0.85);
    --glass-border: rgba(255, 255, 255, 0.08);

    --gradient-primary: linear-gradient(to right, #f4f4f4, #d4d4d4);
    color-scheme: dark;
}