/* ============================================
   CUU LONG HUYET KIEM - Design Token System
   Dark Fantasy / Wuxia Theme
   ============================================ */

:root {
    /* === COLORS — Background === */
    --color-bg-primary: #0a0a0f;
    --color-bg-secondary: #111118;
    --color-bg-tertiary: #1a1a2e;
    --color-bg-card: #14141f;
    --color-bg-card-hover: #1c1c2e;
    --color-bg-surface: #0e0e16;
    --color-bg-overlay: rgba(10, 10, 15, 0.85);
    --color-bg-navbar: rgba(10, 10, 15, 0.95);
    --color-bg-input: #12121c;
    /* === COLORS — Gold Palette === */
    --color-gold-primary: #c9b389;
    --color-gold-bright: #ffd700;
    --color-gold-light: #e8d5a8;
    --color-gold-dark: #8a7340;
    --color-gold-muted: #6b5d3e;
    --color-bronze: #cd7f32;
    --color-silver: #c0c0c0;
    /* === COLORS — Text === */
    --color-text-primary: #e8e6e3;
    --color-text-secondary: #9a9a9a;
    --color-text-muted: #6a6a6a;
    --color-text-heading: #ffffff;
    --color-text-gold: #c9b389;
    --color-text-link: #c9b389;
    --color-text-link-hover: #ffd700;
    /* === COLORS — Accent === */
    --color-accent-red: #8b2020;
    --color-accent-red-bright: #cc3333;
    --color-accent-blue: #1e3a5f;
    --color-accent-green: #2d6016;
    --color-accent-green-bright: #4caf50;
    --color-accent-orange: #d4760a;
    /* === COLORS — Status === */
    --color-online: #4caf50;
    --color-offline: #cc3333;
    --color-warning: #ff9800;
    /* === TYPOGRAPHY === */
    --font-heading: 'Arial', 'Helvetica', sans-serif;
    --font-body: 'Noto Sans', 'Segoe UI', -apple-system, sans-serif;
    --font-display: 'Arial', 'Helvetica', serif;
    --font-mono: 'Fira Code', 'Consolas', monospace;
    --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-size-5xl: 3.5rem;
    --font-size-hero: 4.5rem;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --line-height-tight: 1.2;
    --line-height-normal: 1.6;
    --line-height-relaxed: 1.8;
    /* === SPACING === */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;
    /* === BORDERS === */
    --border-gold: 1px solid var(--color-gold-dark);
    --border-gold-bright: 1px solid var(--color-gold-primary);
    --border-subtle: 1px solid rgba(201, 179, 137, 0.15);
    --border-card: 1px solid rgba(201, 179, 137, 0.1);
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    /* === SHADOWS === */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.6);
    --shadow-glow-gold: 0 0 20px rgba(201, 179, 137, 0.25);
    --shadow-glow-gold-strong: 0 0 30px rgba(201, 179, 137, 0.4);
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 15px rgba(201, 179, 137, 0.15);
    /* === TRANSITIONS === */
    --transition-fast: all 0.15s ease;
    --transition-base: all 0.3s ease;
    --transition-slow: all 0.5s ease;
    --transition-smooth: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    /* === LAYOUT === */
    --container-max: 1320px;
    --container-wide: 1600px;
    --navbar-height: 72px;
    --sidebar-width: 260px;
    --section-padding: 5rem 0;
    /* === Z-INDEX === */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-navbar: 1000;
    --z-modal-backdrop: 1400;
    --z-modal: 1500;
    --z-tooltip: 1600;
}