:root {
  --bg: #141414;
  --bg-alt: #0a0a0a;
  --surface: #1c1c1c;
  --surface-raised: #242424;
  --ink: #f2f2f2;
  --ink-muted: rgba(242, 242, 242, 0.62);
  --ink-subtle: rgba(242, 242, 242, 0.42);
  --line: rgba(242, 242, 242, 0.14);
  --line-strong: rgba(242, 242, 242, 0.28);
  --accent: #b8ff2e;
  --accent-glow: rgba(184, 255, 46, 0.38);
  --accent-ink: #0a0a0a;
  --glass-bg: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.12);
  --radius: 6px;
  --radius-lg: 12px;
  --radius-pill: 9999px;
  --font-display: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-body: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "Segoe UI Mono", "SF Mono", Consolas, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --rail-width: 280px;
  --content-max: 1280px;
  --page-gutter: clamp(1rem, 2.5vw, 2rem);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.55;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

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

.page-main {
  min-width: 0;
}

main {
  display: block;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(20, 20, 20, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  padding: 0.85rem var(--page-gutter);
  max-width: calc(var(--content-max) + var(--page-gutter) * 2);
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: -0.02em;
  min-width: 0;
}

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(135deg, rgba(184, 255, 46, 0.18), transparent 55%),
    repeating-linear-gradient(0deg, transparent, transparent 7px, rgba(255, 255, 255, 0.04) 7px, rgba(255, 255, 255, 0.04) 8px),
    var(--surface);
  flex-shrink: 0;
}

.brand span small {
  display: block;
  font-size: 0.68rem;
  font-weight: 400;
  color: var(--ink-muted);
  letter-spacing: 0.04em;
  margin-top: 0.1rem;
}

.site-header nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  margin-left: auto;
}

.site-header nav a {
  text-decoration: none;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ink-muted);
  transition: color 0.2s var(--ease);
}

.site-header nav a:hover {
  color: var(--ink);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--glass-border);
  background: var(--bg-alt);
  text-decoration: none;
  font-size: 0.8125rem;
  font-weight: 600;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.header-cta:hover {
  background: var(--ink);
  color: var(--accent-ink);
  border-color: var(--ink);
}

.section,
.hero {
  position: relative;
  padding: clamp(2.5rem, 5vw, 4.5rem) var(--page-gutter);
}

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

.section:nth-child(even) {
  background:
    radial-gradient(ellipse 120% 80% at 100% 0%, rgba(184, 255, 46, 0.04), transparent 50%),
    linear-gradient(180deg, var(--bg-alt), var(--bg));
}

.topo-surface {
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240' viewBox='0 0 240 240'%3E%3Cg fill='none' stroke='%23ffffff' stroke-opacity='0.05' stroke-width='1'%3E%3Cpath d='M0 180 C40 160 80 200 120 170 S200 150 240 165'/%3E%3Cpath d='M0 120 C50 95 90 130 140 105 S210 90 240 110'/%3E%3Cpath d='M0 60 C35 45 85 75 125 55 S195 40 240 58'/%3E%3C/g%3E%3C/svg%3E");
  background-size: 240px 240px;
}

.hero {
  padding-top: clamp(1.5rem, 3vw, 2.5rem);
  padding-bottom: clamp(2rem, 4vw, 3rem);
  background:
    radial-gradient(ellipse 90% 70% at 80% 20%, rgba(184, 255, 46, 0.07), transparent 55%),
    var(--bg);
}

.hero-grid,
.section-inner.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.25rem, 3vw, 2rem);
  align-items: start;
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 42rem;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 0.85rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero-copy h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 3.8vw, 2.75rem);
  font-weight: 650;
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.lead {
  margin: 0 0 1.35rem;
  font-size: clamp(0.95rem, 1.6vw, 1.0625rem);
  color: var(--ink-muted);
  max-width: 38rem;
}

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

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.85rem 1.35rem;
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.button-primary {
  background: var(--bg-alt);
  color: var(--ink);
  border-color: var(--glass-border);
}

.button-primary::after {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
  flex-shrink: 0;
}

.button-primary:hover {
  background: var(--ink);
  color: var(--accent-ink);
  transform: translateY(-1px);
}

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

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

.geo-line {
  font-size: 0.8125rem;
  color: var(--ink-subtle);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero-visual {
  position: relative;
  width: 100%;
  max-height: 38vh;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background:
    linear-gradient(160deg, rgba(184, 255, 46, 0.06), transparent 45%),
    var(--surface);
  overflow: hidden;
  isolation: isolate;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='320' height='200' viewBox='0 0 320 200'%3E%3Cg fill='none' stroke='%23b8ff2e' stroke-opacity='0.12' stroke-width='1.2'%3E%3Cpath d='M0 140 C50 120 90 155 150 125 S250 105 320 130'/%3E%3Cpath d='M0 95 C60 70 110 105 170 82 S260 68 320 88'/%3E%3Cpath d='M0 50 C45 35 95 62 145 42 S235 28 320 46'/%3E%3C/g%3E%3C/svg%3E");
  background-size: cover;
  opacity: 0.85;
  pointer-events: none;
}

.section-heading {
  max-width: 46rem;
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
}

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

.section-heading h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.8vw, 2rem);
  font-weight: 650;
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.section-heading p {
  margin: 0;
  color: var(--ink-muted);
}

.component-services .cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

.card {
  padding: 1.15rem 1.2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.card-icon {
  display: inline-flex;
  width: 2rem;
  height: 2rem;
  margin-bottom: 0.65rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(184, 255, 46, 0.08);
}

.card-icon[data-icon="sailboat"]::before { content: "SP"; }
.card-icon[data-icon="camera"]::before { content: "LG"; }
.card-icon[data-icon="aurora"]::before { content: "SN"; }
.card-icon[data-icon="compass"]::before { content: "CM"; }
.card-icon[data-icon="backpack"]::before { content: "PR"; }
.card-icon[data-icon="mountain"]::before { content: "TR"; }
.card-icon[data-icon="tent"]::before { content: "ZN"; }
.card-icon[data-icon="train"]::before { content: "RL"; }
.card-icon[data-icon="binoculars"]::before { content: "CT"; }
.card-icon[data-icon="lighthouse"]::before { content: "NV"; }

.card-label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-subtle);
}

.card h3 {
  margin: 0 0 0.55rem;
  font-size: 1.05rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.card p {
  margin: 0 0 0.65rem;
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.card small {
  display: block;
  font-size: 0.78rem;
  color: var(--ink-subtle);
}

.component-benefits .cards-grid,
.component-scenarios .cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

.guide-body {
  display: grid;
  gap: 1rem;
}

.chapter {
  padding: 1.15rem 1.2rem;
  border-left: 2px solid var(--accent);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.chapter h3 {
  margin: 0 0 0.65rem;
  font-size: 1rem;
  font-weight: 650;
  letter-spacing: -0.015em;
}

.chapter p {
  margin: 0 0 0.65rem;
  color: var(--ink-muted);
}

.chapter ul {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--ink-muted);
}

.chapter li + li {
  margin-top: 0.35rem;
}

.geo-chips {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.geo-chip {
  padding: 1rem 1.1rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--surface);
}

.geo-chip strong {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.95rem;
}

.geo-chip span {
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.faq-list {
  display: grid;
  gap: 0.55rem;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  overflow: hidden;
}

.faq-list summary {
  padding: 0.95rem 1.1rem;
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list details[open] summary {
  border-bottom: 1px solid var(--line);
}

.faq-list details p {
  margin: 0;
  padding: 0.95rem 1.1rem 1.1rem;
  color: var(--ink-muted);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: start;
}

.tripscan-disclaimer {
  margin-top: 0.85rem;
  font-size: 0.8125rem;
  color: var(--ink-subtle);
}

.contact-form {
  display: grid;
  gap: 0.85rem;
  padding: 1.15rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--surface-raised);
}

.contact-form label {
  display: grid;
  gap: 0.35rem;
}

.contact-form label span {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--ink-muted);
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  background: var(--bg-alt);
  color: var(--ink);
  font: inherit;
}

.contact-form textarea {
  min-height: 5.5rem;
  resize: vertical;
}

.form-message {
  margin: 0;
  font-size: 0.875rem;
  color: var(--accent);
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg-alt);
  padding: clamp(2rem, 4vw, 3rem) var(--page-gutter);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.footer-grid h3 {
  margin: 0 0 0.5rem;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-subtle);
}

.footer-brand {
  display: block;
  margin-bottom: 0.45rem;
  font-size: 1.05rem;
}

.footer-grid a {
  display: block;
  margin-bottom: 0.35rem;
  text-decoration: none;
  color: var(--ink-muted);
  font-size: 0.875rem;
}

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

.footer-coverage {
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  color: var(--ink-subtle);
}

@media (min-width: 720px) {
  .hero-visual {
    max-height: 44vh;
  }

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

  .component-services .cards-grid .card:nth-child(1) {
    grid-column: span 7;
  }

  .component-services .cards-grid .card:nth-child(2) {
    grid-column: span 5;
  }

  .component-services .cards-grid .card:nth-child(3) {
    grid-column: span 5;
  }

  .component-services .cards-grid .card:nth-child(4) {
    grid-column: span 7;
  }

  .component-services .cards-grid .card:nth-child(5) {
    grid-column: span 6;
  }

  .component-services .cards-grid .card:nth-child(6) {
    grid-column: span 6;
  }

  .component-benefits .cards-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .component-scenarios .cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .geo-chips {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .page-shell {
    grid-template-columns: var(--rail-width) minmax(0, 1fr);
    align-items: start;
  }

  .site-header {
    position: sticky;
    top: 0;
    height: 100vh;
    border-bottom: none;
    border-right: 1px solid var(--line);
    background: var(--bg-alt);
  }

  .header-inner {
    flex-direction: column;
    align-items: stretch;
    height: 100%;
    padding: 1.5rem 1.25rem;
    max-width: none;
  }

  .brand {
    flex-direction: row;
    align-items: center;
  }

  .brand-logo {
    width: 48px;
    height: 48px;
    max-width: 64px;
    max-height: 64px;
  }

  .site-header nav {
    flex-direction: column;
    align-items: stretch;
    margin-left: 0;
    margin-top: 1.5rem;
    gap: 0.15rem;
  }

  .site-header nav a {
    padding: 0.55rem 0.65rem;
    border-radius: var(--radius);
  }

  .site-header nav a:hover {
    background: var(--surface);
  }

  .header-cta {
    margin-top: auto;
    width: 100%;
  }

  .hero-grid,
  .section-inner.hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(1.5rem, 3vw, 2.5rem);
    align-items: center;
  }

  .hero-visual {
    max-height: 55vh;
    max-width: 100%;
  }

  .component-scenarios .cards-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .guide-body {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .guide-body .chapter:nth-child(9) {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1440px) {
  :root {
    --content-max: 1360px;
    --rail-width: 300px;
  }

  .section,
  .hero {
    padding-left: clamp(1.5rem, 2vw, 2.5rem);
    padding-right: clamp(1.5rem, 2vw, 2.5rem);
  }
}

@media (min-width: 2160px) {
  :root {
    --content-max: 1560px;
  }

  body {
    font-size: 1rem;
  }
}

@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;
  }
}