/* ============================================
   VAYUPAKSHA AEROSPACE - DESIGN TOKEN SYSTEM
   Aerospace Tech Theme for Drone Ecommerce
   ============================================ */

/* ============================================
   COLOR TOKENS - Aerospace Palette
   ============================================ */
:root {
  /* Core Grayscale Scale - Original */
  --color-black: #000000;
  --color-charcoal: #0d0d0d;
  --color-gunmetal: #1a1a1a;
  --color-steel: #2d2d2d;
  --color-silver: #808080;
  --color-ash: #b3b3b3;
  --color-mist: #e5e5e5;
  --color-white: #ffffff;

  /* AEROSPACE PRIMARY BLUE SCALE */
  --blue-electric: #00a8ff;
  --blue-deep: #0077cc;
  --blue-navy: #0a1628;
  --blue-hover: #33bfff;

  /* AEROSPACE DARK BASE SCALE */
  --bg-black-aero: #000000;
  --bg-deep-aero: #050a12;
  --bg-elevated-aero: #0d1526;
  --bg-surface-aero: #111d32;

  /* AEROSPACE RED ACCENT */
  --accent-red: #e63946;
  --accent-red-glow: rgba(230, 57, 70, 0.6);
  --accent-red-soft: rgba(230, 57, 70, 0.15);

  /* Background Layers - Updated with Aerospace Palette */
  --bg-primary: #050a12;
  --bg-secondary: #0a1628;
  --bg-tertiary: #111d32;
  --bg-elevated: #0d1526;
  --bg-subtle: #0a1628;

  /* Surface Layers - Updated */
  --surface-card: #111d32;
  --surface-glass: rgba(17, 29, 50, 0.7);
  --surface-overlay: rgba(5, 10, 18, 0.9);
  --surface-hover: #152538;
  --surface-active: #1a2d45;

  /* Border Colors - Updated */
  --border-subtle: rgba(0, 168, 255, 0.1);
  --border-default: rgba(0, 168, 255, 0.2);
  --border-strong: rgba(0, 168, 255, 0.35);
  --border-accent: rgba(0, 168, 255, 0.5);

  /* Text Colors - Updated */
  --text-primary: #ffffff;
  --text-secondary: #c4c4c4;
  --text-muted: #808080;
  --text-subtle: #5c5c5c;
  --text-inverse: #050a12;

  /* Hover States - Updated with Blue Glow */
  --hover-surface: rgba(0, 168, 255, 0.08);
  --hover-lift: rgba(0, 168, 255, 0.12);
  --hover-glow: rgba(0, 168, 255, 0.2);

  /* Focus States - Updated */
  --focus-ring: rgba(0, 168, 255, 0.5);
  --focus-ring-offset: rgba(5, 10, 18, 0.8);
}

/* ============================================
   SHADOW & ELEVATION PRESETS
   ============================================ */
:root {
  /* Shadow Heights */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.5);
  --shadow-2xl: 0 20px 40px rgba(0, 0, 0, 0.6);

  /* Tech Shadows (subtle glow) */
  --shadow-tech-sm: 0 0 10px rgba(128, 128, 128, 0.1);
  --shadow-tech-md: 0 0 20px rgba(128, 128, 128, 0.15);
  --shadow-tech-lg: 0 0 30px rgba(128, 128, 128, 0.2);

  /* Glow Shadows */
  --shadow-blue-glow: 0 0 25px rgba(0, 140, 255, 0.45);
  --shadow-red-glow: 0 0 25px rgba(255, 40, 40, 0.45);

  /* Elevation Levels */
  --elevation-base: var(--shadow-sm);
  --elevation-card: var(--shadow-md);
  --elevation-nav: var(--shadow-lg);
  --elevation-modal: var(--shadow-2xl);
}

/* ============================================
   RADIUS SCALE
   ============================================ */
:root {
  --radius-none: 0;
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;
}

/* ============================================
   SPACING SCALE
   ============================================ */
:root {
  --space-1: 0.25rem; /* 4px */
  --space-2: 0.5rem; /* 8px */
  --space-3: 0.75rem; /* 12px */
  --space-4: 1rem; /* 16px */
  --space-5: 1.25rem; /* 20px */
  --space-6: 1.5rem; /* 24px */
  --space-8: 2rem; /* 32px */
  --space-10: 2.5rem; /* 40px */
  --space-12: 3rem; /* 48px */
  --space-16: 4rem; /* 64px */
  --space-20: 5rem; /* 80px */
  --space-24: 6rem; /* 96px */

  /* Semantic Spacing */
  --space-section: var(--space-16);
  --space-card: var(--space-6);
  --space-grid-gap: var(--space-6);
}

/* ============================================
   TYPOGRAPHY SCALE
   ============================================ */
:root {
  /* Font Families */
  --font-display: "Orbitron", sans-serif;
  --font-body: "Exo 2", sans-serif;

  /* Font Sizes */
  --text-xs: 0.75rem; /* 12px */
  --text-sm: 0.875rem; /* 14px */
  --text-base: 1rem; /* 16px */
  --text-lg: 1.125rem; /* 18px */
  --text-xl: 1.25rem; /* 20px */
  --text-2xl: 1.5rem; /* 24px */
  --text-3xl: 1.875rem; /* 30px */
  --text-4xl: 2.25rem; /* 36px */
  --text-5xl: 3rem; /* 48px */
  --text-6xl: 3.75rem; /* 60px */
  --text-hero: 4rem; /* 64px */

  /* Font Weights */
  --font-light: 300;
  --font-regular: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;

  /* Line Heights */
  --leading-tight: 1.2;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
}

/* ============================================
   TRANSITION PRESETS
   ============================================ */
:root {
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  --transition-smooth: 400ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Animation Durations */
  --duration-instant: 0ms;
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;
  --duration-slower: 600ms;
}

/* ============================================
   Z-INDEX SCALE
   ============================================ */
:root {
  --z-base: 0;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;
}

/* ============================================
   GLASS SURFACE STYLE
   ============================================ */
.glass {
  background: var(--surface-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
}

.glass-light {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ============================================
   CARD SURFACE STYLE
   ============================================ */
.card {
  background: var(--surface-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  transition: transform var(--transition-smooth),
    box-shadow var(--transition-smooth), border-color var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-strong);
}

/* ============================================
   BUTTON SURFACE STYLE - AEROSPACE PALETTE
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-weight: var(--font-semibold);
  font-size: var(--text-base);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  gap: var(--space-2);
}

.btn-primary {
  background: var(--blue-electric);
  color: #ffffff;
  border-color: var(--blue-electric);
}

.btn-primary:hover {
  background: var(--blue-hover);
  border-color: var(--blue-hover);
  box-shadow: var(--shadow-blue-glow);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--blue-electric);
  border-color: var(--blue-electric);
}

.btn-secondary:hover {
  background: rgba(0, 168, 255, 0.1);
  border-color: var(--blue-hover);
  color: var(--blue-hover);
  box-shadow: 0 0 15px rgba(0, 168, 255, 0.2);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}

.btn-ghost:hover {
  background: var(--hover-surface);
  color: var(--blue-electric);
}

/* CTA Button - Red Accent */
.btn-cta {
  background: var(--accent-red);
  color: #ffffff;
  border-color: var(--accent-red);
}

.btn-cta:hover {
  background: #ff4d5a;
  border-color: #ff4d5a;
  box-shadow: var(--shadow-red-glow);
  transform: translateY(-2px);
}

/* ============================================
   TECH BORDER STYLE
   ============================================ */
.tech-border {
  position: relative;
  border: 1px solid var(--border-default);
}

.tech-border::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  bottom: -1px;
  border: 1px solid transparent;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--border-accent), transparent 50%)
    border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* ============================================
   DARK TECH THEME OVERRIDES
   ============================================ */
[data-theme="dark"] {
  --bg-primary: var(--color-charcoal);
}

/* ============================================
   RESPONSIVE ADJUSTMENTS
   ============================================ */
@media (max-width: 768px) {
  :root {
    --text-hero: 2.5rem;
    --text-5xl: 2.25rem;
    --text-4xl: 1.875rem;
    --space-section: var(--space-12);
  }
}

@media (max-width: 480px) {
  :root {
    --text-hero: 2rem;
    --text-5xl: 1.75rem;
    --text-4xl: 1.5rem;
    --space-section: var(--space-8);
  }
}