/* ============================================
   Tyler Wince - CITY TRANSIT ATLAS Theme
   Route maps, station labels, kinetic structure.
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=IBM+Plex+Mono:wght@400;500&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  --font-display: 'Bebas Neue', 'Impact', sans-serif;
  --font-sans: 'Space Grotesk', 'Avenir Next', 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', 'SF Mono', monospace;

  --line-red: #b54950;
  --line-blue: #286cb6;
  --line-green: #7cbd68;
  --line-gold: #d69b2d;

  --color-bg: #e8edf3;
  --color-bg-accent: #dde5ef;
  --color-bg-warm: #f3efe8;
  --color-panel: #f6f8fb;
  --color-panel-muted: #ecf2f8;
  --color-surface: #ffffff;
  --color-surface-glow: #f8fbff;
  --color-surface-glass: rgba(255, 255, 255, 0.86);

  --color-ink: #132232;
  --color-ink-soft: #425567;
  --color-muted: #6d8093;
  --color-border: #2d4053;
  --color-border-light: rgba(45, 64, 83, 0.24);

  --color-accent: var(--line-red);
  --color-accent-light: #cc666f;
  --color-accent-wash: rgba(181, 73, 80, 0.12);
  --color-green: var(--line-green);
  --color-green-light: #98d98a;
  --color-green-wash: rgba(124, 189, 104, 0.16);
  --color-gold: var(--line-gold);
  --color-sand: #d9c9ab;

  --color-text-primary: var(--color-ink);
  --color-text-secondary: var(--color-ink-soft);
  --color-text-tertiary: var(--color-muted);
  --color-surface-elevated: var(--color-surface);

  --max-width-text: 720px;
  --max-width-content: 1080px;
  --max-width-wide: 1320px;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;

  --border-radius: 12px;
  --border-radius-lg: 18px;
  --border-radius-xl: 24px;
  --border-radius-full: 999px;

  --shadow-sm: 0 2px 4px rgba(10, 25, 40, 0.08);
  --shadow-md: 0 12px 26px rgba(10, 25, 40, 0.14);
  --shadow-lg: 0 24px 40px rgba(10, 25, 40, 0.16);

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast: 180ms var(--ease-out);
  --transition-base: 320ms var(--ease-out);
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.6;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(116deg, transparent 0%, transparent 49%, rgba(40, 108, 182, 0.1) 49.5%, rgba(40, 108, 182, 0.1) 50.5%, transparent 51%, transparent 100%),
    linear-gradient(72deg, transparent 0%, transparent 35%, rgba(181, 73, 80, 0.1) 35.2%, rgba(181, 73, 80, 0.1) 36%, transparent 36.4%, transparent 100%),
    radial-gradient(circle at 20% 16%, rgba(124, 189, 104, 0.18), transparent 40%),
    radial-gradient(circle at 88% 80%, rgba(181, 73, 80, 0.12), transparent 40%);
  z-index: -2;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255, 255, 255, 0.18) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.18) 1px, transparent 1px);
  background-size: 28px 28px;
  z-index: -1;
}

::selection {
  background: rgba(40, 108, 182, 0.24);
  color: var(--color-ink);
}

a {
  color: var(--line-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--line-red);
}

img {
  max-width: 100%;
  display: block;
  border-radius: 0.85rem;
}

strong {
  color: var(--color-ink);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0 0 0.45em;
  line-height: 1.15;
  letter-spacing: 0.01em;
}

h1 {
  font-family: var(--font-display);
  text-transform: uppercase;
}

h2 {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

h3,
h4,
h5,
h6 {
  font-family: var(--font-sans);
}

p {
  margin: 0 0 1.2em;
  color: var(--color-ink-soft);
}

ul,
ol {
  margin: 0 0 1.2em 1.15em;
  color: var(--color-ink-soft);
}

li {
  margin-bottom: 0.4em;
}

li::marker {
  color: var(--line-red);
}

code {
  font-family: var(--font-mono);
  font-size: 0.86em;
  background: rgba(19, 34, 50, 0.08);
  border: 1px solid rgba(19, 34, 50, 0.12);
  border-radius: 0.5rem;
  padding: 0.1rem 0.35rem;
}

pre {
  position: relative;
  margin: 1.6rem 0;
  padding: 1rem;
  overflow-x: auto;
  border-radius: 1rem;
  background: #0f1a24;
  border: 1px solid #1c2d3d;
  color: #e3f0ff;
}

pre code {
  border: none;
  background: transparent;
  padding: 0;
  color: inherit;
}

blockquote {
  margin: 1.5rem 0;
  padding: 0.95rem 1rem;
  border-radius: 1rem;
  border: 1px dashed var(--line-green);
  background: rgba(124, 189, 104, 0.12);
}

blockquote p:last-child {
  margin-bottom: 0;
}

.mb-3 {
  margin-bottom: var(--space-3);
}

.mb-6 {
  margin-bottom: var(--space-6);
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-muted);
}

.site-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
}

.site-rail {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 1rem;
  border-right: 2px solid var(--color-border-light);
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: 0.75rem;
  align-content: start;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.7), rgba(236, 242, 248, 0.8));
  backdrop-filter: blur(8px);
}

.site-stage {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.site-main {
  flex: 1;
  min-width: 0;
}

.site-header {
  border: 2px solid var(--color-border);
  border-radius: 1rem;
  background: var(--color-surface-glass);
  padding: 0.8rem;
  display: grid;
  gap: 0.8rem;
}

.route-brand {
  display: grid;
  gap: 0.35rem;
}

.site-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 2rem;
  line-height: 0.9;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.site-title a {
  color: var(--color-ink);
}

.site-title a:hover {
  color: var(--line-red);
}

.route-caption {
  margin: 0;
  font-size: 0.82rem;
  color: var(--color-muted);
}

.route-toggle {
  display: none;
  border: 1px solid var(--color-border-light);
  border-radius: 999px;
  background: var(--color-surface);
  padding: 0.45rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.11em;
  cursor: pointer;
  justify-content: space-between;
  align-items: center;
}

.route-toggle-bars {
  width: 0.95rem;
  height: 0.62rem;
  position: relative;
  display: inline-block;
}

.route-toggle-bars::before,
.route-toggle-bars::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--color-ink);
}

.route-toggle-bars::before {
  top: 0;
}

.route-toggle-bars::after {
  bottom: 0;
}

.nav-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-muted);
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
  position: relative;
}

.site-nav ul::before {
  content: '';
  position: absolute;
  left: 0.7rem;
  top: 0.6rem;
  bottom: 0.6rem;
  width: 3px;
  border-radius: 999px;
  background: linear-gradient(var(--line-blue), var(--line-red), var(--line-green));
}

.route-stop-item {
  margin: 0;
}

.route-stop-item a {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.6rem;
  align-items: center;
  border: 1px solid transparent;
  border-radius: 0.75rem;
  padding: 0.48rem 0.55rem;
  color: var(--color-ink-soft);
  text-decoration: none;
  position: relative;
}

.route-stop-item a:hover {
  border-color: var(--color-border-light);
  background: rgba(255, 255, 255, 0.72);
  color: var(--color-ink);
}

.route-stop-dot {
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 999px;
  background: var(--line-blue);
  border: 2px solid #fff;
  z-index: 1;
}

.route-stop-item:nth-child(2) .route-stop-dot {
  background: var(--line-red);
}

.route-stop-item:nth-child(3) .route-stop-dot {
  background: var(--line-green);
}

.route-stop-item:nth-child(4) .route-stop-dot {
  background: var(--line-gold);
}

.route-stop-name {
  font-weight: 600;
}

.route-stop-index {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  color: var(--color-muted);
}

.route-stop-item a.active {
  background: #101820;
  border-color: #101820;
  color: #f4fbff;
}

.route-stop-item a.active .route-stop-index {
  color: #a5d8ff;
}

.ai-design-banner {
  border: 1px solid var(--color-border-light);
  border-radius: 0.9rem;
  background: linear-gradient(120deg, rgba(40, 108, 182, 0.14), rgba(124, 189, 104, 0.14));
  padding: 0.7rem;
  display: grid;
  gap: 0.45rem;
  font-size: 0.75rem;
  color: var(--color-ink-soft);
}

.ai-design-banner span {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.62rem;
}

.ai-design-banner a {
  font-weight: 600;
}

.site-footer {
  padding: 1rem;
}

.footer-terminal {
  border: 2px solid var(--color-border);
  border-radius: 1rem;
  background: var(--color-panel);
  padding: 0.9rem;
  display: grid;
  gap: 0.75rem;
}

.footer-heading {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
  flex-wrap: wrap;
}

.footer-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-muted);
}

.footer-tagline {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.2rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-ink);
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.footer-links li {
  margin: 0;
}

.footer-links a {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: 1px solid var(--color-border-light);
  border-radius: 999px;
  padding: 0.35rem 0.6rem;
  background: var(--color-surface);
}

.footer-links a:hover {
  border-color: var(--line-red);
  color: var(--line-red);
}

.footer-text {
  margin: 0;
  font-size: 0.75rem;
  color: var(--color-muted);
}

.content-wrapper,
.content-wrapper-narrow {
  width: 100%;
  margin: 0 auto;
  padding: var(--space-12) var(--space-8);
}

.content-wrapper {
  max-width: var(--max-width-content);
}

.content-wrapper-narrow {
  max-width: var(--max-width-text);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.11em;
}

.link-arrow::after {
  content: '\2192';
  transition: transform var(--transition-fast);
}

.link-arrow:hover::after {
  transform: translateX(4px);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--line-blue);
  color: #fff;
  padding: 0.6rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
}

.button:hover {
  color: #fff;
  background: #20599a;
}

.button-secondary {
  background: transparent;
  border-color: var(--color-border-light);
  color: var(--color-ink-soft);
}

.divider {
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, var(--line-blue), transparent);
  margin: var(--space-10) 0;
}

.post {
  padding: clamp(0.75rem, 2.4vw, 1.4rem);
}

.post-header {
  border: 2px solid var(--color-border);
  border-radius: 1.2rem;
  background: var(--color-panel);
  margin-bottom: 0.85rem;
}

.post-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 4rem);
  line-height: 0.92;
  text-transform: uppercase;
}

.post-description {
  margin-top: 0.7rem;
  font-size: 1.05rem;
  color: var(--color-ink-soft);
  max-width: 52ch;
}

.post-meta {
  margin-top: 0.95rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-muted);
}

.post-content {
  border: 2px solid var(--color-border);
  border-radius: 1.2rem;
  background: var(--color-surface);
  font-size: 1.03rem;
  line-height: 1.85;
}

.post-content h2 {
  margin-top: 2.1rem;
}

.post-content h3 {
  margin-top: 1.4rem;
}

.post-content img {
  margin: 1.4rem 0;
}

.post-footer {
  margin-top: 0.8rem;
}

.post-footer-text {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.11em;
  color: var(--color-muted);
}

.book-ticket-track {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
}

.book-ticket-notch {
  margin-top: 0.15rem;
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 999px;
  background: var(--line-blue);
  flex-shrink: 0;
}

.book-route-label {
  display: inline-block;
  margin-bottom: 0.22rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-muted);
}

.code-copy-button {
  position: absolute;
  top: 0.55rem;
  right: 0.55rem;
  border-radius: 0.55rem;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(15, 26, 36, 0.75);
  color: #d8ecff;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.28rem 0.45rem;
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--transition-fast), border-color var(--transition-fast);
}

pre:hover .code-copy-button {
  opacity: 1;
}

.code-copy-button:hover {
  border-color: rgba(124, 189, 104, 0.7);
}

.animate-in {
  animation: stationIn 560ms var(--ease-out) both;
}

.delay-1,
.animate-in-delay-1 {
  animation-delay: 100ms;
}

.delay-2 {
  animation-delay: 180ms;
}

.delay-3 {
  animation-delay: 260ms;
}

.reveal-ready[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 420ms var(--ease-out), transform 420ms var(--ease-out);
}

.reveal-ready[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes stationIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.keyboard-nav *:focus {
  outline: 2px solid var(--line-red);
  outline-offset: 2px;
}

@media (max-width: 1020px) {
  .site-shell {
    grid-template-columns: 1fr;
  }

  .site-rail {
    position: sticky;
    height: auto;
    border-right: none;
    border-bottom: 2px solid var(--color-border-light);
    z-index: 30;
  }

  .site-header {
    gap: 0.55rem;
  }

  .route-toggle {
    display: inline-flex;
  }

  body.js-ready .site-nav {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transform: translateY(-8px);
    transition: max-height var(--transition-base), opacity var(--transition-fast), transform var(--transition-fast);
  }

  body.js-ready.nav-open .site-nav {
    max-height: 420px;
    opacity: 1;
    transform: translateY(0);
  }

  .site-nav ul::before {
    left: 0.55rem;
  }

  .content-wrapper,
  .content-wrapper-narrow {
    padding: var(--space-8) var(--space-6);
  }
}

@media (max-width: 700px) {
  html {
    font-size: 15px;
  }

  .site-rail,
  .site-footer {
    padding: 0.75rem;
  }

  .content-wrapper,
  .content-wrapper-narrow {
    padding: var(--space-6) var(--space-4);
  }

  .route-caption {
    display: none;
  }

  .footer-heading {
    flex-direction: column;
    align-items: flex-start;
  }
}