:root {
    /* Colors - Dark Mode (default) */
    --color-primary: #c8a97e;
    --color-primary-dark: #876f46;
    --color-primary-light: #e0cba8;
    --color-accent: #d4a574;

    --color-bg: #0f0f0f;
    --color-bg-card: rgba(255, 255, 255, 0.08);
    --color-bg-card-hover: rgba(255, 255, 255, 0.12);
    --color-bg-modal: rgba(15, 15, 15, 0.97);
    --color-bg-nav: rgba(15, 15, 15, 0.92);
    --color-bg-glass: rgba(255, 255, 255, 0.06);
    --color-bg-glass-strong: rgba(255, 255, 255, 0.20);

    --color-text: #ffffff;
    --color-text-secondary: rgba(255, 255, 255, 0.75);
    --color-text-muted: rgba(255, 255, 255, 0.4);

    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-light: rgba(255, 255, 255, 0.12);

    --color-success: #4caf50;
    --color-warning: #ff9800;
    --color-danger: #f44336;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;

    --text-xs: clamp(0.625rem, 0.6rem + 0.15vw, 0.75rem);
    --text-sm: clamp(0.75rem, 0.7rem + 0.2vw, 0.875rem);
    --text-base: clamp(0.875rem, 0.8rem + 0.25vw, 1rem);
    --text-lg: clamp(1rem, 0.9rem + 0.35vw, 1.125rem);
    --text-xl: clamp(1.125rem, 1rem + 0.5vw, 1.25rem);
    --text-2xl: clamp(1.25rem, 1.1rem + 0.6vw, 1.5rem);
    --text-3xl: clamp(1.5rem, 1.3rem + 0.8vw, 2rem);

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 50%;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.35);
    --shadow-glow: 0 0 20px rgba(200, 169, 126, 0.15);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;

    /* Layout */
    --nav-height: 54px;
    --max-width: 480px;
    --safe-bottom: env(safe-area-inset-bottom, 0px);

    /* Backdrop blur */
    --blur-sm: blur(10px);
    --blur-md: blur(20px);
    --blur-lg: blur(40px);
}

/* ============================================
   Light Mode
   ============================================ */
body.theme-light {
    --color-bg: #fcfcfc;
    --color-bg-card: rgba(0, 0, 0, 0.03);
    --color-bg-card-hover: rgba(0, 0, 0, 0.06);
    --color-bg-modal: rgba(255, 255, 255, 0.98);
    --color-bg-nav: rgba(255, 255, 255, 0.95);
    --color-bg-glass: rgba(0, 0, 0, 0.03);
    --color-bg-glass-strong: rgba(255, 255, 255, 0.20);

    --color-text: #1a1a1a;
    --color-text-secondary: rgba(0, 0, 0, 0.75);
    --color-text-muted: rgba(0, 0, 0, 0.35);

    --color-border: rgba(0, 0, 0, 0.08);
    --color-border-light: rgba(0, 0, 0, 0.06);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
}