/* ============================================
   THE AI VAULT: ESCAPE THE FUTURE
   Design Tokens & Theme Variables
   ============================================ */

:root {
    /* ---- Base Palette (Dark Tech Aesthetic) ---- */
    --color-bg-primary: #0a0e1a;
    --color-bg-secondary: #111827;
    --color-bg-panel: rgba(17, 24, 39, 0.85);
    --color-bg-card: rgba(30, 41, 59, 0.6);
    --color-bg-overlay: rgba(0, 0, 0, 0.7);
    --color-bg-input: rgba(15, 23, 42, 0.8);

    --color-text-primary: #e5e7eb;
    --color-text-secondary: #9ca3af;
    --color-text-muted: #6b7280;
    --color-text-accent: #60a5fa;

    --color-accent-primary: #3b82f6;
    --color-accent-secondary: #8b5cf6;
    --color-success: #10b981;
    --color-error: #ef4444;
    --color-warning: #f59e0b;

    --color-border: rgba(75, 85, 99, 0.4);
    --color-border-focus: rgba(59, 130, 246, 0.6);

    /* ---- Room-Specific Accent (overridden per room) ---- */
    --room-accent: var(--color-accent-primary);
    --room-accent-rgb: 59, 130, 246;
    --room-accent-glow: rgba(var(--room-accent-rgb), 0.3);
    --room-accent-soft: rgba(var(--room-accent-rgb), 0.1);
    --room-bg-gradient: linear-gradient(135deg, #0a0e1a 0%, #1e1b4b 100%);

    /* ---- Typography ---- */
    --font-primary: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
    --font-display: 'Orbitron', 'Inter', sans-serif;

    --font-size-xs: clamp(0.65rem, 1.5vw, 0.75rem);
    --font-size-sm: clamp(0.75rem, 1.8vw, 0.875rem);
    --font-size-base: clamp(0.875rem, 2vw, 1rem);
    --font-size-lg: clamp(1rem, 2.5vw, 1.125rem);
    --font-size-xl: clamp(1.125rem, 3vw, 1.25rem);
    --font-size-2xl: clamp(1.25rem, 3.5vw, 1.5rem);
    --font-size-3xl: clamp(1.5rem, 4vw, 1.875rem);
    --font-size-4xl: clamp(1.875rem, 5vw, 2.25rem);
    --font-size-5xl: clamp(2.25rem, 6vw, 3rem);

    --line-height-tight: 1.2;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.7;

    /* ---- Spacing ---- */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* ---- Border Radius ---- */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* ---- Shadows ---- */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(var(--room-accent-rgb), 0.3);
    --shadow-glow-strong: 0 0 40px rgba(var(--room-accent-rgb), 0.5);

    /* ---- Transitions ---- */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
    --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

    /* ---- Z-index Layers ---- */
    --z-base: 1;
    --z-room: 10;
    --z-puzzle: 20;
    --z-hud: 50;
    --z-dropdown: 60;
    --z-modal: 100;
    --z-overlay: 200;
    --z-toast: 300;
    --z-character: 150;

    /* ---- Layout ---- */
    --max-width: 1200px;
    --header-height: 60px;
    --sidebar-width: 280px;
}

/* ============================================
   Room Theme Overrides
   ============================================ */

.room-space {
    --room-accent: #06b6d4;
    --room-accent-rgb: 6, 182, 212;
    --room-bg-gradient: linear-gradient(135deg, #0a0e1a 0%, #0c1a2e 50%, #1a0a2e 100%);
}

.room-food {
    --room-accent: #f59e0b;
    --room-accent-rgb: 245, 158, 11;
    --room-bg-gradient: linear-gradient(135deg, #1a150a 0%, #1e1b0b 50%, #1a1005 100%);
}

.room-ethics {
    --room-accent: #8b5cf6;
    --room-accent-rgb: 139, 92, 246;
    --room-bg-gradient: linear-gradient(135deg, #1a0a2e 0%, #150e24 50%, #0e0a1a 100%);
}

.room-green {
    --room-accent: #10b981;
    --room-accent-rgb: 16, 185, 129;
    --room-bg-gradient: linear-gradient(135deg, #0a1a0e 0%, #0a1e1b 50%, #051a12 100%);
}

.room-cyber {
    --room-accent: #ef4444;
    --room-accent-rgb: 239, 68, 68;
    --room-bg-gradient: linear-gradient(135deg, #1a0a0a 0%, #1e0b0b 50%, #1a0505 100%);
}