/* ============================================================
   AUTEGRA — Common Styles
   Design tokens, reset, navigation, footer, shared components
   ============================================================ */

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

:root {
  /* Brand */
  --teal: #0C6B5C;
  --teal-hover: #0E7D6B;
  --teal-dim: rgba(12, 107, 92, 0.12);
  --teal-glow: rgba(12, 107, 92, 0.06);
  --copper: #B5762A;
  --copper-hover: #C9873A;
  --copper-dim: rgba(181, 118, 42, 0.10);

  /* Dark Surfaces */
  --graphite: #111518;
  --carbon: #1A1F24;
  --carbon-hover: #1E2329;
  --pewter: #2A3038;
  --pewter-half: rgba(42, 48, 56, 0.5);

  /* Light Surfaces */
  --ivory: #FAFAF7;
  --paper: #FFFFFF;
  --mist: #E2E4E8;

  /* Text */
  --snow: #F5F5F5;
  --charcoal: #1A1D21;
  --slate: #6B7280;
  --slate-dim: rgba(107, 114, 128, 0.5);

  /* Semantic */
  --verified: #1A9D6C;
  --verified-dim: rgba(26, 157, 108, 0.10);
  --danger: #D93025;
  --danger-dim: rgba(217, 48, 37, 0.08);
  --warning: #E6A817;
  --warning-dim: rgba(230, 168, 23, 0.10);
  --info: #2D7DD2;
  --info-dim: rgba(45, 125, 210, 0.10);

  /* Typography */
  --font-heading: 'General Sans', -apple-system, sans-serif;
  --font-body: 'Satoshi', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;

  /* Spacing */
  --nav-height: 64px;
  --container-max: 1120px;
  --container-narrow: 860px;
  --gutter: 48px;
  --section-gap: 120px;

  /* Misc */
  --radius: 2px;
  --border: 1px solid var(--pewter);
  --border-half: 1px solid var(--pewter-half);
  --transition-fast: 0.15s ease;
  --transition-med: 0.25s ease;
  --transition-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--graphite);
  color: var(--snow);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

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

img { display: block; max-width: 100%; }

/* --- FOCUS STATES --- */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

/* --- NOISE TEXTURE OVERLAY --- */
.noise-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

/* --- NAV --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--gutter);
  background: rgba(17, 21, 24, 0.88);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: var(--border);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  transition: opacity var(--transition-fast);
}
.nav-brand:hover { opacity: 0.8; }

.nav-wordmark {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--snow);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--slate);
  transition: color var(--transition-fast);
  position: relative;
}
.nav-link:hover { color: var(--snow); }
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--teal);
  transition: width var(--transition-med);
}
.nav-link:hover::after { width: 100%; }

.nav-wallet {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px;
  background: var(--carbon);
  border: var(--border);
  border-radius: var(--radius);
}

.nav-wallet-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--slate);
}

.nav-wallet-value {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--snow);
  letter-spacing: 0.5px;
}

/* --- SHARED BUTTONS --- */
.btn {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  padding: 10px 20px;
  border-radius: var(--radius);
  border: var(--border);
  background: transparent;
  color: var(--snow);
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}
.btn:hover {
  border-color: var(--teal);
  color: var(--teal);
}

.btn-copper {
  background: var(--copper);
  border-color: var(--copper);
  color: var(--graphite);
  font-weight: 600;
}
.btn-copper:hover {
  background: var(--copper-hover);
  border-color: var(--copper-hover);
  color: var(--graphite);
}

.btn-teal {
  background: var(--teal);
  border-color: var(--teal);
  color: var(--snow);
  font-weight: 600;
}
.btn-teal:hover {
  background: var(--teal-hover);
  border-color: var(--teal-hover);
  color: var(--snow);
}

/* --- MONO LABEL --- */
.mono-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--slate);
}

.mono-label-teal {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--teal);
}

/* --- BADGES --- */
.badge {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius);
  display: inline-block;
}

.badge-clean { color: var(--verified); border: 1px solid var(--verified); }
.badge-alert { color: var(--danger); border: 1px solid var(--danger); background: var(--danger-dim); }
.badge-warning { color: var(--warning); border: 1px solid var(--warning); }
.badge-info { color: var(--info); border: 1px solid var(--info); }

/* --- ENTRANCE ANIMATIONS --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-16px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes barGrow {
  from { height: 0; }
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(12, 107, 92, 0); }
  50% { box-shadow: 0 0 0 6px rgba(12, 107, 92, 0.12); }
}

.anim-fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.anim-fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- FOOTER --- */
.site-footer {
  padding: 48px var(--gutter);
  border-top: var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-brand-text {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--slate);
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--slate);
  letter-spacing: 0.5px;
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
  :root {
    --gutter: 20px;
    --section-gap: 80px;
    --nav-height: 56px;
  }

  .nav-link { display: none; }

  .site-footer {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}