/* ============================================================
   Fault Line — Marketing Site Theme (Tunnel + Amber)
   Single source of truth for every /website/*.html page.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,700;0,800;0,900;1,700;1,800;1,900&family=Lora:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=IBM+Plex+Mono:wght@400;500;600&family=Oswald:wght@500;600;700&display=swap');

:root {
  --tunnel: #0A1628;
  --tunnel-deep: #050B14;
  --tunnel-mid: #14243C;
  --rail: #1D3553;
  --rail-light: #2A4568;
  --steel: #6B7A91;
  --steel-light: #8C95A3;

  --amber: #F4B832;
  --amber-bright: #FFD15C;
  --amber-deep: #D9A01A;
  --amber-glow: rgba(244, 184, 50, 0.22);

  --signal-green: #46C37A;
  --signal-red: #E8463E;

  --tile: #F4F4F0;
  --tile-dim: #CFCFC8;
  --tile-mute: #9098A5;

  --grid: rgba(244, 244, 240, 0.04);

  /* Legacy shims for old inline references */
  --primary: var(--amber);
  --secondary: var(--amber);
  --accent: var(--signal-green);
  --danger: var(--signal-red);
  --bg: var(--tunnel);
  --bg-card: var(--tunnel-deep);
  --bg-elevated: var(--tunnel-mid);
  --text: var(--tile);
  --text-secondary: var(--tile-dim);
  --text-muted: var(--steel-light);
  --border: var(--rail);

  --ff-display: 'Playfair Display', Georgia, serif;
  --ff-body: 'Lora', Georgia, serif;
  --ff-ui: 'Oswald', -apple-system, BlinkMacSystemFont, sans-serif;
  --ff-mono: 'IBM Plex Mono', 'SF Mono', Menlo, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--ff-body);
  background: var(--tunnel);
  color: var(--tile);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 60px 30px;
  background-position: -1px -1px;
  min-height: 100vh;
}

a { color: var(--amber); text-decoration: none; }
a:hover { color: var(--amber-bright); }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--ff-display);
  font-weight: 800;
  color: var(--tile);
  letter-spacing: -0.5px;
  line-height: 1.1;
}
h1 { font-weight: 900; }

em { font-style: italic; color: var(--amber); }

p, li, dd { color: var(--tile-dim); }

/* ===== Hazard stripes ===== */
.hazard {
  height: 14px;
  background: repeating-linear-gradient(-45deg, var(--amber) 0 22px, var(--tunnel) 22px 44px);
}
.hazard-thin {
  height: 4px;
  background: repeating-linear-gradient(-45deg, var(--amber) 0 10px, transparent 10px 20px);
}

/* ===== NAV ===== */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: var(--tunnel-deep);
  border-bottom: 2px solid var(--amber);
  padding: 20px 36px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 32px; flex-wrap: wrap;
  max-width: 1280px; margin: 0 auto;
}
.nav-brand {
  display: inline-flex; align-items: baseline; gap: 10px;
  font-family: var(--ff-display);
  font-weight: 900; font-style: italic;
  font-size: 26px;
  color: var(--tile); letter-spacing: -0.5px;
  line-height: 1; text-decoration: none;
}
.nav-brand .brand-slash { color: var(--amber); margin: 0 2px; }
.nav-brand .brand-line { color: var(--amber); }

/* BETA pill — purple, scoped to nav + h1 contexts */
.beta-badge {
  display: inline-block;
  background: #A855F7;
  color: #fff;
  font-family: var(--ff-ui);
  font-style: normal;
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 100px;
  vertical-align: middle;
  line-height: 1;
}
h1 .beta-badge, h2 .beta-badge { font-size: 12px; padding: 4px 11px; margin-left: 10px; }

.nav-links {
  display: flex; align-items: center; gap: 24px;
  font-family: var(--ff-ui);
  font-weight: 500; font-size: 13px;
  letter-spacing: 2px; text-transform: uppercase;
  flex-wrap: wrap;
}
.nav-links a {
  color: var(--tile-dim); text-decoration: none;
  padding-bottom: 2px; border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}
.nav-links a:hover { color: var(--amber); border-bottom-color: var(--amber); }
.nav-links a[aria-current="page"] { color: var(--amber); border-bottom-color: var(--amber); }

/* Ko-Fi support button — amber filled, action-oriented */
.nav-kofi {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--amber);
  color: var(--tunnel-deep) !important;
  border: 1px solid var(--amber);
  padding: 6px 14px;
  border-radius: 100px;
  font-family: var(--ff-ui);
  font-size: 11px; font-weight: 700;
  letter-spacing: 1.8px; text-transform: uppercase;
  text-decoration: none;
  transition: background 0.15s, box-shadow 0.15s;
}
.nav-kofi:hover {
  background: var(--amber-bright);
  box-shadow: 0 0 0 4px var(--amber-glow);
  border-bottom-color: var(--amber-bright) !important;
  color: var(--tunnel-deep);
}
.nav-kofi::before { content: '☕'; font-size: 13px; }

/* Active Development — non-interactive status indicator (NOT a button) */
.active-dev-status {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--ff-mono);
  font-size: 10px; font-weight: 500;
  color: var(--signal-green);
  letter-spacing: 1.5px; text-transform: uppercase;
  cursor: default;
}
.nav-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--signal-green);
  box-shadow: 0 0 6px var(--signal-green);
  display: inline-block;
  animation: nav-pulse 2s ease-in-out infinite;
}
@keyframes nav-pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 6px var(--signal-green); }
  50% { opacity: 0.55; box-shadow: 0 0 12px var(--signal-green); }
}
/* Legacy compat — old markup still references .nav-active */
.nav-active { display: none; }

/* ===== Hero ===== */
.hero {
  padding: 24px 36px 80px;
  max-width: 1280px; margin: 0 auto;
}
.hero-serial {
  font-family: var(--ff-mono);
  font-size: 12px; color: var(--steel-light);
  letter-spacing: 2.5px; text-transform: uppercase;
  margin-bottom: 28px;
  display: inline-flex; align-items: center; gap: 14px;
}
.hero-serial::before {
  content: ''; width: 36px; height: 2px; background: var(--amber);
}
.hero h1 {
  font-size: clamp(52px, 9vw, 120px);
  letter-spacing: -2.5px;
  line-height: 0.95;
  margin-bottom: 28px;
  max-width: 1100px;
}
.hero-sub, .hero p.hero-sub {
  font-family: var(--ff-body);
  font-style: italic;
  font-size: 22px;
  color: var(--tile-dim);
  max-width: 680px;
  margin-bottom: 48px;
  line-height: 1.55;
}
.hero-sub strong { color: var(--tile); font-style: normal; font-weight: 600; }
.hero-cta {
  display: flex; gap: 16px; flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
  font-family: var(--ff-ui);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  padding: 16px 32px;
  border: 2px solid;
  cursor: pointer;
  display: inline-flex; align-items: center; gap: 10px;
  text-decoration: none;
  transition: all 0.15s;
  border-radius: 0;
}
.btn-primary {
  background: var(--amber);
  color: var(--tunnel-deep);
  border-color: var(--amber);
}
.btn-primary:hover {
  background: var(--amber-bright);
  border-color: var(--amber-bright);
  box-shadow: 0 0 0 6px var(--amber-glow);
  color: var(--tunnel-deep);
  text-decoration: none;
}
.btn-outline {
  background: transparent;
  color: var(--tile);
  border-color: var(--rail-light);
}
.btn-outline:hover {
  border-color: var(--tile);
  color: var(--tile);
  text-decoration: none;
}

/* ===== Sections ===== */
.section {
  padding: 100px 36px;
  max-width: 1280px; margin: 0 auto;
}
.section-label {
  font-family: var(--ff-mono);
  font-size: 12px; color: var(--amber);
  letter-spacing: 3px; text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 14px;
  margin-bottom: 18px;
}
.section-label::before {
  content: ''; width: 44px; height: 2px; background: var(--amber);
}
.section-title {
  font-size: clamp(38px, 5.5vw, 68px);
  letter-spacing: -1.5px;
  line-height: 1.02;
  margin-bottom: 26px;
  max-width: 960px;
}
.section-lead {
  font-family: var(--ff-body); font-style: italic;
  font-size: 19px; color: var(--tile-dim);
  max-width: 720px; margin-bottom: 56px; line-height: 1.6;
}

/* ===== Container / Cards ===== */
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

.card {
  background: var(--tunnel-deep);
  border: 1px solid var(--rail);
  padding: 28px;
  transition: border-color 0.2s, background 0.2s;
}
.card:hover {
  border-color: var(--amber);
}

/* ===== Forms ===== */
input, select, textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--tunnel-mid);
  border: 1px solid var(--rail);
  color: var(--tile);
  font-family: var(--ff-body);
  font-size: 16px;
  border-radius: 0;
}
input::placeholder, textarea::placeholder {
  color: var(--steel); font-style: italic;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--amber);
  outline: none;
  box-shadow: 0 0 0 3px var(--amber-glow);
}

label {
  display: block;
  font-family: var(--ff-ui);
  font-size: 11px; font-weight: 600;
  color: var(--amber);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 2px;
}

/* ===== Footer ===== */
footer {
  background: var(--tunnel-deep);
  padding: 48px 36px 32px;
  border-top: 1px solid var(--rail);
  margin-top: 80px;
  text-align: center;
  font-family: var(--ff-mono);
  font-size: 12px;
  color: var(--steel-light);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}
footer a {
  color: var(--tile-dim);
  font-family: var(--ff-ui);
  margin: 0 10px;
  letter-spacing: 2px;
  text-decoration: none;
}
footer a:hover { color: var(--amber); }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .nav { padding: 16px 20px; }
  .nav-links { gap: 16px; font-size: 12px; }
  .hero { padding: 60px 24px; }
  .section { padding: 60px 24px; }
}
@media (max-width: 600px) {
  .nav-links a:not(.nav-kofi) { display: none; }
}