/* Design Tokens & CSS Variables for MyPortfolio */
:root {
  /* Color Palette - Premium Slate & Obsidian Neutrals */
  --bg-app: #0B0F17;
  --bg-surface: #111827;
  --bg-surface-elevated: #1F2937;
  --bg-surface-glass: rgba(17, 24, 39, 0.85);
  --bg-input: #1E293B;
  --bg-subtle: #162032;

  /* Text Colors */
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --text-inverse: #0F172A;

  /* Accent Color (Default: Royal Indigo) */
  --accent-primary: #6366F1;
  --accent-primary-hover: #4F46E5;
  --accent-primary-rgb: 99, 102, 241;
  --accent-subtle: rgba(99, 102, 241, 0.12);
  --accent-border: rgba(99, 102, 241, 0.3);

  /* Semantic Colors */
  --success: #10B981;
  --success-bg: rgba(16, 185, 129, 0.12);
  --warning: #F59E0B;
  --warning-bg: rgba(245, 158, 11, 0.12);
  --danger: #EF4444;
  --danger-bg: rgba(239, 68, 68, 0.12);
  --info: #0EA5E9;
  --info-bg: rgba(14, 165, 233, 0.12);

  /* Border & Divider */
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(99, 102, 241, 0.6);
  --border-light: rgba(255, 255, 255, 0.15);

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --font-serif: 'Playfair Display', serif;

  /* Radii */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 24px rgba(var(--accent-primary-rgb), 0.35);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 350ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Mobile Device Dimensions */
  --phone-width: 412px;
  --phone-height: 870px;
  --phone-radius: 50px;
  --nav-height: 72px;
  --status-bar-height: 48px;
}

/* Light Mode Overrides for Mobile App View if toggled */
[data-app-theme="light"] {
  --bg-app: #F8FAFC;
  --bg-surface: #FFFFFF;
  --bg-surface-elevated: #F1F5F9;
  --bg-surface-glass: rgba(255, 255, 255, 0.9);
  --bg-input: #F1F5F9;
  --bg-subtle: #E2E8F0;

  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
  --text-inverse: #FFFFFF;

  --border-color: rgba(0, 0, 0, 0.08);
  --border-light: rgba(0, 0, 0, 0.12);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.12);
}