/* ============================================
   Midnight Lace — Design System
   ============================================ */

/* --- Google Fonts imported in HTML --- */

:root {
  /* ---- Colors ---- */
  --color-bg-primary: #0a0a0a;
  --color-bg-secondary: #111111;
  --color-bg-tertiary: #1a1a1a;
  --color-bg-card: #141414;
  --color-bg-elevated: #1e1e1e;
  --color-bg-glass: rgba(20, 20, 20, 0.7);

  --color-surface-dark: #0d0610;
  --color-surface-purple: #1a0a1a;

  --color-accent-gold: #c4956a;
  --color-accent-gold-light: #d4af87;
  --color-accent-gold-hover: #dab892;
  --color-accent-rose: #e8c4c4;
  --color-accent-wine: #6b1d3a;
  --color-accent-wine-light: #8a2b4e;
  --color-accent-blush: #f5e6e0;

  --color-text-primary: #f5f0ec;
  --color-text-secondary: #a09890;
  --color-text-muted: #6b6560;
  --color-text-accent: var(--color-accent-gold);

  --color-border: rgba(196, 149, 106, 0.15);
  --color-border-hover: rgba(196, 149, 106, 0.35);
  --color-border-active: rgba(196, 149, 106, 0.6);

  --color-success: #4ade80;
  --color-error: #f87171;
  --color-warning: #fbbf24;

  /* ---- Typography ---- */
  --font-display: 'Playfair Display', 'Georgia', serif;
  --font-body: 'Inter', 'Helvetica Neue', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --text-7xl: 4.5rem;

  --leading-tight: 1.15;
  --leading-snug: 1.3;
  --leading-normal: 1.6;
  --leading-relaxed: 1.8;

  --tracking-tight: -0.02em;
  --tracking-normal: 0;
  --tracking-wide: 0.05em;
  --tracking-widest: 0.15em;

  /* ---- Spacing ---- */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* ---- Sizing ---- */
  --max-width: 1280px;
  --max-width-narrow: 960px;
  --nav-height: 72px;
  --sidebar-width: 420px;

  /* ---- Shadows ---- */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.6);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.7);
  --shadow-glow: 0 0 30px rgba(196, 149, 106, 0.15);
  --shadow-glow-strong: 0 0 60px rgba(196, 149, 106, 0.25);

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

  /* ---- Transitions ---- */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;
  --duration-slower: 800ms;

  /* ---- Z-index ---- */
  --z-base: 1;
  --z-dropdown: 10;
  --z-sticky: 50;
  --z-overlay: 100;
  --z-modal: 200;
  --z-toast: 300;
  --z-tooltip: 400;
}

/* ============================================
   CSS Reset
   ============================================ */

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

img, video, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration-normal) var(--ease-out);
}

a:hover {
  color: var(--color-accent-gold);
}

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: transparent;
  border: 1px solid var(--color-border);
  outline: none;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--color-accent-gold);
  box-shadow: 0 0 0 2px rgba(196, 149, 106, 0.15);
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
}

::selection {
  background: rgba(196, 149, 106, 0.3);
  color: var(--color-text-primary);
}

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--color-accent-gold);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent-gold-hover);
}

/* ============================================
   Utility Classes
   ============================================ */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container--narrow {
  max-width: var(--max-width-narrow);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.text-accent { color: var(--color-accent-gold); }
.text-muted { color: var(--color-text-muted); }
.text-secondary { color: var(--color-text-secondary); }

.font-display { font-family: var(--font-display); }
.font-body { font-family: var(--font-body); }

.text-center { text-align: center; }
.text-uppercase {
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.btn:hover::before {
  opacity: 1;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-accent-gold), var(--color-accent-gold-light));
  color: var(--color-bg-primary);
  font-weight: 600;
}

.btn--primary:hover {
  color: var(--color-bg-primary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.btn--outline {
  border: 1px solid var(--color-accent-gold);
  color: var(--color-accent-gold);
  background: transparent;
}

.btn--outline:hover {
  background: rgba(196, 149, 106, 0.1);
  color: var(--color-accent-gold-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.btn--ghost {
  color: var(--color-text-secondary);
  padding: var(--space-2) var(--space-4);
}

.btn--ghost:hover {
  color: var(--color-accent-gold);
}

.btn--lg {
  padding: var(--space-4) var(--space-12);
  font-size: var(--text-base);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

/* ---- Badge ---- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  border-radius: var(--radius-full);
  background: rgba(196, 149, 106, 0.15);
  color: var(--color-accent-gold);
}

.badge--success {
  background: rgba(74, 222, 128, 0.15);
  color: var(--color-success);
}

.badge--error {
  background: rgba(248, 113, 113, 0.15);
  color: var(--color-error);
}

/* ---- Section ---- */
.section {
  padding: var(--space-24) 0;
}

.section__label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-accent-gold);
  margin-bottom: var(--space-4);
}

.section__title {
  font-size: var(--text-4xl);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}

.section__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 560px;
}

/* ---- Divider ---- */
.divider {
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent-gold), transparent);
  margin: var(--space-6) 0;
}

.divider--center {
  margin-left: auto;
  margin-right: auto;
}

/* ---- Glass Card ---- */
.glass {
  background: var(--color-bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
}

/* ---- Skeleton Loading ---- */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-bg-tertiary) 25%,
    var(--color-bg-elevated) 50%,
    var(--color-bg-tertiary) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  :root {
    --nav-height: 60px;
    --text-5xl: 2.25rem;
    --text-6xl: 2.75rem;
    --text-7xl: 3.25rem;
  }

  .container {
    padding: 0 var(--space-4);
  }

  .section {
    padding: var(--space-16) 0;
  }

  .section__title {
    font-size: var(--text-3xl);
  }
}