:root {
  --page: #1a1b1e;
  --surface: #24262b;
  --surface-alt: #2e3138;
  --text: #eef0f3;
  --muted: #9aa3ad;
  --accent: #c6f135;
  --accent-alt: #8fd400;
  --accent-dim: color-mix(in srgb, var(--accent) 18%, transparent);
  --ink: #101214;
  --radius: 12px;
  --radius-sm: 8px;
  --section-space: clamp(3.5rem, 6vw, 5.5rem);
  --rail-width: clamp(220px, 18vw, 280px);
  --content-max: min(1280px, 100%);
  --hero-max-h-desktop: 55vh;
  --hero-max-h-tablet: 44vh;
  --hero-max-h-mobile: 38vh;
  --font-display: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E");
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  min-width: 0;
  overflow-x: hidden;
  line-height: 1.62;
  font-family: var(--font-body);
  background: var(--page);
  color: var(--text);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.045;
  background-image: var(--grain);
  z-index: 0;
}

body, button, input, select, textarea { font: inherit; }

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

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

h1, h2, h3, p { margin-top: 0; }

h1, h2, h3 {
  font-family: var(--font-display);
  letter-spacing: -0.03em;
  font-weight: 650;
}

h1 {
  font-size: clamp(2.1rem, 4.8vw, 3.75rem);
  line-height: 1.02;
  margin-bottom: 1.25rem;
}

h2 {
  font-size: clamp(1.65rem, 3vw, 2.65rem);
  line-height: 1.08;
  margin-bottom: 0.85rem;
}

h3 {
  font-size: clamp(1.05rem, 1.6vw, 1.28rem);
  line-height: 1.25;
}

p { color: var(--muted); }

.page-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: var(--rail-width) minmax(0, 1fr);
  min-height: 100vh;
  max-width: 2160px;
  margin: 0 auto;
}

.site-rail {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  padding: 1.25rem 1rem 1.25rem 1.35rem;
  border-right: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
  background: color-mix(in srgb, var(--page) 92%, var(--surface));
  backdrop-filter: blur(10px);
  z-index: 40;
}

.site-rail .site-header {
  position: static;
  backdrop-filter: none;
  background: transparent;
}

.site-rail .header-inner {
  width: 100%;
  margin: 0;
  min-height: auto;
  flex-direction: column;
  align-items: stretch;
  gap: 1.35rem;
  padding: 0;
}

.site-rail .brand {
  display: grid;
  grid-template-columns: min(64px, 100%) 1fr;
  align-items: center;
  gap: 0.75rem;
  white-space: normal;
  font-size: 1rem;
  font-weight: 800;
}

.site-rail .brand-logo {
  width: min(64px, 100%);
  height: min(64px, 100%);
  max-width: 64px;
  max-height: 64px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex: 0 0 auto;
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
}

.site-rail .brand-logo svg { width: 100%; height: 100%; }

.site-rail .brand small {
  display: block;
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--muted);
}

.site-rail .site-header nav {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.35rem;
  margin: 0;
  min-width: 0;
}

.site-rail .site-header nav a {
  font-size: 0.78rem;
  color: var(--muted);
  padding: 0.55rem 0.7rem;
  border: 1px solid color-mix(in srgb, var(--text) 12%, transparent);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--surface) 70%, transparent);
  white-space: normal;
}

.site-rail .site-header nav a:hover {
  color: var(--text);
  border-color: var(--accent);
  background: var(--accent-dim);
}

.site-rail .header-cta {
  margin: 0;
  width: 100%;
  text-align: center;
}

.page-main {
  min-width: 0;
  padding: 0 clamp(1rem, 2.5vw, 2rem) 0 clamp(1.25rem, 3vw, 2.5rem);
}

.page-content {
  width: min(var(--content-max), 100%);
  margin: 0 auto;
}

.section-inner {
  width: 100%;
  max-width: none;
  margin: 0 auto;
}

.eyebrow, .section-kicker {
  display: inline-block;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 700;
  margin-bottom: 0.85rem;
  color: var(--accent);
}

.lead {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  max-width: 52ch;
  color: color-mix(in srgb, var(--text) 82%, var(--muted));
}

.button, .header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.78rem 1.15rem;
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.88rem;
  transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

.button-primary, .header-cta {
  background: var(--accent);
  color: var(--ink);
}

.button-primary:hover, .header-cta:hover {
  transform: translateY(-1px);
  background: color-mix(in srgb, var(--accent) 88%, white);
}

.button-secondary {
  background: transparent;
  color: var(--text);
  border-color: color-mix(in srgb, var(--text) 22%, transparent);
}

.button-secondary:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.hero {
  padding: clamp(2rem, 4vw, 3.25rem) 0 var(--section-space);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  gap: clamp(1.5rem, 3.5vw, 3rem);
  align-items: center;
}

.hero-copy { min-width: 0; }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 1.75rem 0 1rem;
}

.geo-line {
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.hero-visual {
  position: relative;
  overflow: hidden;
  width: 100%;
  max-height: var(--hero-max-h-desktop);
  aspect-ratio: 16 / 10;
  border-radius: var(--radius);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  background: linear-gradient(145deg, var(--surface-alt), var(--surface));
  box-shadow: 0 18px 48px color-mix(in srgb, var(--ink) 45%, transparent);
  clip-path: inset(0 round var(--radius));
}

.hero-defs-cache {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.section {
  padding: var(--section-space) 0;
  border-top: 1px solid color-mix(in srgb, var(--text) 8%, transparent);
}

.section-heading {
  max-width: 58ch;
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
}

.section-heading > p { font-size: 0.98rem; }

.component-process .process-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 0.85rem;
}

.component-process .process-list li {
  grid-column: span 4;
  min-width: 0;
  display: flex;
  gap: 0.85rem;
  padding: 1.15rem;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
  border-left: 3px solid var(--accent);
}

.component-process .process-list li:nth-child(2) { grid-column: 5 / span 4; margin-top: 1.25rem; }
.component-process .process-list li:nth-child(3) { grid-column: 9 / span 4; }
.component-process .process-list li:nth-child(4) { grid-column: 2 / span 4; margin-top: 0.5rem; }
.component-process .process-list li:nth-child(5) { grid-column: 7 / span 5; margin-top: 1rem; }

.component-services .cards-grid,
.component-benefits .cards-grid,
.component-scenarios .cards-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 0.85rem;
}

.component-services .card:nth-child(1) { grid-column: 1 / span 7; }
.component-services .card:nth-child(2) { grid-column: 8 / span 5; margin-top: 1.5rem; }
.component-services .card:nth-child(3) { grid-column: 1 / span 5; margin-top: -0.5rem; }
.component-services .card:nth-child(4) { grid-column: 6 / span 7; }
.component-services .card:nth-child(5) { grid-column: 2 / span 4; margin-top: 0.75rem; }
.component-services .card:nth-child(6) { grid-column: 6 / span 7; margin-top: 1.25rem; }

.component-benefits .card:nth-child(1) { grid-column: 1 / span 6; }
.component-benefits .card:nth-child(2) { grid-column: 7 / span 6; margin-top: 1rem; }
.component-benefits .card:nth-child(3) { grid-column: 1 / span 5; margin-top: 0.5rem; }
.component-benefits .card:nth-child(4) { grid-column: 6 / span 7; }

.component-scenarios .card:nth-child(1) { grid-column: 1 / span 5; }
.component-scenarios .card:nth-child(2) { grid-column: 6 / span 7; margin-top: 1rem; }
.component-scenarios .card:nth-child(3) { grid-column: 2 / span 6; margin-top: 0.75rem; }
.component-scenarios .card:nth-child(4) { grid-column: 8 / span 5; margin-top: -0.25rem; }

.card {
  min-width: 0;
  padding: 1.25rem 1.3rem;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
  box-shadow: 0 12px 32px color-mix(in srgb, var(--ink) 35%, transparent);
}

.card p { margin-bottom: 0; }

.card-icon, .step-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 0.85rem;
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  background: var(--accent-dim);
  border-radius: 10px;
}

.card-icon svg, .step-icon svg { width: 26px; height: 26px; overflow: visible; }

.card-label {
  display: block;
  color: var(--accent);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 0.55rem;
}

.card small {
  display: block;
  color: var(--muted);
  margin-top: 0.45rem;
  font-size: 0.82rem;
}

.component-geography .geo-chips {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 0.75rem;
}

.component-geography .geo-chip {
  padding: 1rem 1.1rem;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
}

.component-geography .geo-chip:nth-child(1) { grid-column: 1 / span 5; }
.component-geography .geo-chip:nth-child(2) { grid-column: 6 / span 7; margin-top: 0.85rem; }
.component-geography .geo-chip:nth-child(3) { grid-column: 2 / span 6; margin-top: 0.35rem; }
.component-geography .geo-chip:nth-child(4) { grid-column: 8 / span 5; }

.geo-chip strong, .geo-chip span { display: block; }
.geo-chip span { color: var(--muted); font-size: 0.86rem; margin-top: 0.35rem; }

.component-guide .section-inner { max-width: 68ch; }

.guide-body { min-width: 0; }

.chapter {
  min-width: 0;
  padding: 1.15rem 0;
  border-bottom: 1px solid color-mix(in srgb, var(--text) 8%, transparent);
}

.chapter li { color: var(--muted); margin: 0.45rem 0; }

.faq-list { max-width: 58ch; }

.faq-list details {
  border-bottom: 1px solid color-mix(in srgb, var(--text) 12%, transparent);
  padding: 0.95rem 0;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--text);
}

.faq-list p { padding-right: 1.5rem; }

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 1fr);
  gap: clamp(1.5rem, 3vw, 2.75rem);
  align-items: start;
}

.contact-form {
  display: grid;
  gap: 0.9rem;
  background: var(--surface);
  padding: 1.35rem;
  border-radius: var(--radius);
  border: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
}

.contact-form label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.8rem;
}

input, select, textarea {
  width: 100%;
  min-width: 0;
  border: 1px solid color-mix(in srgb, var(--text) 18%, transparent);
  background: var(--page);
  color: var(--text);
  padding: 0.78rem 0.85rem;
  border-radius: var(--radius-sm);
}

textarea { min-height: 110px; resize: vertical; }

.form-message { color: var(--accent); margin: 0; }

.site-footer {
  padding: 3rem 0 3.5rem;
  background: color-mix(in srgb, var(--surface) 80%, var(--page));
  border-top: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 1.75rem;
}

.footer-brand { font-size: 1.35rem; }

.site-footer a {
  display: block;
  color: var(--muted);
  margin: 0.3rem 0;
}

.site-footer a:hover { color: var(--accent); }

.tripscan-disclaimer {
  font-size: 0.78rem;
  margin-top: 1rem;
  padding-left: 0.75rem;
  border-left: 2px solid var(--accent);
}

@media (max-width: 1100px) {
  .page-shell {
    grid-template-columns: 1fr;
  }

  .site-rail {
    position: relative;
    height: auto;
    border-right: none;
    border-bottom: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
    padding: 0.85rem 1rem;
  }

  .site-rail .header-inner {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
  }

  .site-rail .brand {
    grid-template-columns: 48px 1fr;
    flex: 1 1 auto;
    min-width: 0;
  }

  .site-rail .brand-logo {
    width: 48px;
    height: 48px;
    max-width: 48px;
    max-height: 48px;
  }

  .site-rail .site-header nav {
    flex-direction: row;
    flex-wrap: wrap;
    order: 3;
    width: 100%;
  }

  .site-rail .header-cta {
    width: auto;
    margin-left: auto;
  }

  .page-main { padding: 0 1rem; }

  .hero-grid { grid-template-columns: 1fr; }

  .hero-visual {
    max-height: var(--hero-max-h-tablet);
    max-width: min(100%, 720px);
    justify-self: center;
  }

  .component-process .process-list li,
  .component-process .process-list li:nth-child(n) {
    grid-column: span 6;
    margin-top: 0;
  }

  .component-services .card:nth-child(n),
  .component-benefits .card:nth-child(n),
  .component-scenarios .card:nth-child(n),
  .component-geography .geo-chip:nth-child(n) {
    grid-column: span 6;
    margin-top: 0;
  }

  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .site-rail .site-header nav { display: none; }

  h1 { font-size: clamp(1.85rem, 9vw, 2.6rem); }

  .hero-visual { max-height: var(--hero-max-h-mobile); min-height: 200px; }

  .component-process .process-list,
  .component-services .cards-grid,
  .component-benefits .cards-grid,
  .component-scenarios .cards-grid,
  .component-geography .geo-chips,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .component-process .process-list li,
  .component-services .card:nth-child(n),
  .component-benefits .card:nth-child(n),
  .component-scenarios .card:nth-child(n),
  .component-geography .geo-chip:nth-child(n) {
    grid-column: 1 / -1;
  }

  .section { padding: 3.5rem 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .card:hover { transform: none; }
}