/* TripScan variant 1 — editorial side-rail field journal (Lumora + desert-sediment) */

:root {
  --page: #f8f1de;
  --surface: #fffdf8;
  --surface-alt: #efe8d4;
  --text: #4f220f;
  --muted: #7a6348;
  --accent: #9c6638;
  --accent-alt: #b96a4c;
  --ink-soft: #b0ba98;
  --rule: color-mix(in srgb, var(--text) 14%, transparent);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 28px;
  --radius-pill: 999px;
  --section-space: clamp(4rem, 8vw, 7rem);
  --rail-w: clamp(220px, 18vw, 280px);
  --content-max: 1440px;
  --font-display: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "Segoe UI Mono", monospace;
  --shadow-soft: 0 18px 48px color-mix(in srgb, var(--text) 8%, transparent);
  --motion-route: 14s;
}

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

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

body {
  margin: 0;
  min-width: 0;
  overflow-x: hidden;
  line-height: 1.65;
  font-family: var(--font-body);
  background: var(--page);
  color: var(--text);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
  background-image:
    linear-gradient(var(--rule) 1px, transparent 1px),
    linear-gradient(90deg, var(--rule) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 120% 80% at 50% 0%, black, transparent 72%);
}

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;
  line-height: 1.05;
}

h1 {
  font-size: clamp(2.4rem, 5.2vw, 4.6rem);
  margin-bottom: 1.25rem;
}

h2 {
  font-size: clamp(1.85rem, 3.4vw, 3rem);
  margin-bottom: 0.85rem;
}

h3 {
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  margin-bottom: 0.5rem;
}

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

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

/* Side rail navigation */
.side-rail {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  z-index: 40;
  border-right: 1px solid var(--rule);
  background: color-mix(in srgb, var(--surface) 92%, var(--page));
  backdrop-filter: blur(12px);
}

.rail-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  height: 100%;
  padding: clamp(1rem, 2vw, 1.75rem);
  min-width: 0;
}

.side-rail .header-inner {
  width: 100%;
  margin: 0;
  min-height: 0;
  flex-direction: column;
  align-items: stretch;
  gap: 1.25rem;
}

.side-rail .brand {
  display: grid;
  grid-template-columns: min(64px, 100%) 1fr;
  align-items: center;
  gap: 0.65rem;
  font-weight: 800;
  font-size: 1rem;
  white-space: normal;
  flex: 0 0 auto;
}

.side-rail .brand-logo {
  display: block;
  width: min(64px, 100%);
  height: min(64px, 100%);
  max-width: 64px;
  max-height: 64px;
  border-radius: var(--radius-sm);
  object-fit: contain;
  overflow: hidden;
  flex: 0 0 auto;
  border: 1px solid var(--rule);
  background: var(--surface);
}

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

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

.side-rail nav {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.35rem;
  margin: 0;
  min-width: 0;
  flex: 1 1 auto;
}

.side-rail nav a {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  white-space: normal;
  background: transparent;
}

.side-rail nav a:hover {
  color: var(--text);
  border-color: var(--rule);
  background: var(--surface-alt);
}

.side-rail .header-cta {
  margin: 0;
  margin-top: auto;
  width: 100%;
  text-align: center;
  white-space: normal;
}

.main-canvas {
  min-width: 0;
  width: 100%;
}

.editorial-main {
  width: min(var(--content-max), calc(100% - clamp(1.25rem, 3vw, 3rem)));
  margin: 0 auto;
  padding-bottom: 2rem;
}

/* Hero — editorial asymmetric stage */
.hero {
  padding: clamp(2.5rem, 5vw, 4.5rem) 0 var(--section-space);
}

.hero-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: end;
}

.hero .section-inner.hero-grid {
  width: 100%;
  margin: 0;
  display: contents;
}

.hero-copy {
  min-width: 0;
  grid-column: 1;
  align-self: center;
  padding-right: clamp(0, 2vw, 1rem);
}

.hero-visual {
  grid-column: 2;
  grid-row: 1 / span 2;
  overflow: hidden;
  width: 100%;
  min-height: clamp(280px, 36vw, 520px);
  aspect-ratio: 3 / 2;
  border-radius: var(--radius-lg);
  border: 1px solid var(--rule);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  justify-self: stretch;
}

.hero-visual svg {
  width: 100%;
  height: 100%;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

.eyebrow,
.section-kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--accent);
}

.lead {
  font-size: clamp(1.05rem, 1.6vw, 1.28rem);
  max-width: 42rem;
  color: var(--text);
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin: 1.75rem 0 1rem;
}

.geo-line {
  font-size: 0.82rem;
  color: var(--muted);
  font-family: var(--font-mono);
}

.button,
.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.78rem 1.35rem;
  border: 1px solid var(--accent);
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.88rem;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

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

.button-primary:hover,
.header-cta:hover {
  background: var(--text);
  border-color: var(--text);
}

.button-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--rule);
}

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

/* Sections */
.section {
  padding: var(--section-space) 0;
  border-top: 1px solid var(--rule);
}

.section-inner {
  width: 100%;
  margin: 0 auto;
}

.section-heading {
  max-width: 52rem;
  margin-bottom: 2.25rem;
}

.section-heading > p {
  font-size: 1.05rem;
}

.fact-disclaimer {
  font-size: 0.78rem !important;
  padding: 0.65rem 0.85rem;
  border-left: 3px solid var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, var(--surface));
}

/* Process — vertical timeline */
.lane-process .process-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1rem;
  counter-reset: step;
}

.lane-process .process-list li {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1.35rem;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  position: relative;
}

.lane-process .process-list li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-weight: 700;
}

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

.cards-grid .card {
  grid-column: span 4;
  min-width: 0;
  padding: 1.45rem;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--rule);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.cards-grid .card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
}

.card p { margin-bottom: 0; }

.card-icon,
.step-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 1rem;
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  background: color-mix(in srgb, var(--accent) 7%, var(--surface));
  border-radius: var(--radius-sm);
}

.card-icon svg,
.step-icon svg {
  width: 28px;
  height: 28px;
  overflow: visible;
}

.card-label {
  display: block;
  color: var(--accent);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 0.65rem;
  font-family: var(--font-mono);
}

.card-value {
  display: block;
  margin-top: 1rem;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 700;
}

.card small {
  display: block;
  color: var(--muted);
  margin-top: 0.4rem;
}

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

.lane-benefits .cards-grid .card {
  grid-column: span 3;
}

.lane-scenarios .cards-grid .card:nth-child(5) {
  grid-column: span 4;
}

/* Geography band */
.lane-geography {
  background: linear-gradient(135deg, color-mix(in srgb, var(--ink-soft) 35%, var(--page)), var(--page));
}

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

.geo-chip {
  padding: 1.25rem 1.35rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.geo-chip strong,
.geo-chip span { display: block; }

.geo-chip strong {
  color: var(--text);
  margin-bottom: 0.45rem;
}

.geo-chip span {
  color: var(--muted);
  font-size: 0.92rem;
}

/* Guide — accordion chapters */
.lane-guide .section-inner {
  max-width: 920px;
}

.guide-body {
  min-width: 0;
  display: grid;
  gap: 1rem;
}

.chapter {
  min-width: 0;
  padding: 1.35rem 1.5rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  background: var(--surface);
}

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

.chapter ul {
  padding-left: 1.2rem;
  margin-bottom: 0;
}

/* FAQ */
.faq-list {
  max-width: 900px;
  display: grid;
  gap: 0;
}

.faq-list details {
  border-bottom: 1px solid var(--rule);
  padding: 1rem 0;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 800;
  color: var(--text);
  list-style: none;
}

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

.faq-list p {
  padding-right: 1.5rem;
  margin-top: 0.65rem;
}

/* Contact */
.lane-contact {
  background: color-mix(in srgb, var(--surface-alt) 60%, var(--page));
  border-radius: var(--radius-lg);
  margin-bottom: 1rem;
}

.lane-contact .section-inner.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
  padding: clamp(1.5rem, 3vw, 2.5rem);
}

.contact-form,
.calculator-form {
  display: grid;
  gap: 1rem;
  background: var(--surface);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--rule);
}

.contact-form label,
.calculator-form label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.82rem;
}

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

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

output {
  font-size: 1.2rem;
  color: var(--accent);
  font-weight: 800;
}

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

.tripscan-disclaimer {
  font-size: 0.82rem;
}

/* Footer */
.site-footer {
  padding: 3.5rem 0 2rem;
  background: var(--surface);
  border-top: 1px solid var(--rule);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 0.8fr;
  gap: 2rem;
}

.footer-brand {
  font-size: 1.45rem;
  font-family: var(--font-display);
}

.site-footer a {
  display: block;
  color: var(--muted);
  margin: 0.35rem 0;
}

.footer-coverage {
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

/* Icon motion — delta-safe, slow loops */
.icon-draw path {
  stroke-dasharray: 34 8;
  animation: iconDraw var(--motion-route) linear infinite;
}

.icon-pulse {
  transform-box: fill-box;
  transform-origin: center;
  animation: iconPulse 12s ease-in-out infinite;
}

.icon-slide {
  animation: iconSlide 12s ease-in-out infinite;
}

.icon-spin {
  transform-box: fill-box;
  transform-origin: center;
  animation: iconSpin var(--motion-route) linear infinite;
}

@keyframes iconDraw {
  to { stroke-dashoffset: -84; }
}

@keyframes iconPulse {
  50% { transform: scale(0.92); opacity: 0.78; }
}

@keyframes iconSlide {
  50% { transform: translateX(3px); }
}

@keyframes iconSpin {
  to { transform: rotate(360deg); }
}

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

  .side-rail {
    position: relative;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--rule);
  }

  .rail-inner {
    height: auto;
    padding: 1rem clamp(1rem, 3vw, 1.5rem);
  }

  .side-rail .header-inner {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }

  .side-rail .brand {
    grid-template-columns: 48px 1fr;
    flex: 1 1 auto;
  }

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

  .side-rail nav {
    flex-direction: row;
    flex-wrap: wrap;
    flex: 1 1 100%;
    order: 3;
  }

  .side-rail .header-cta {
    margin-top: 0;
    margin-left: auto;
    width: auto;
    flex: 0 0 auto;
  }

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

  .hero-visual {
    grid-column: 1;
    grid-row: auto;
    min-height: 320px;
  }

  .lane-process .process-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cards-grid .card,
  .lane-services .cards-grid .card:nth-child(5),
  .lane-benefits .cards-grid .card,
  .lane-scenarios .cards-grid .card:nth-child(5) {
    grid-column: span 6;
  }

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

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

/* Mobile */
@media (max-width: 640px) {
  .editorial-main {
    width: min(100% - 1.5rem, var(--content-max));
  }

  .side-rail nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .button {
    width: 100%;
  }

  .lane-process .process-list,
  .cards-grid,
  .geo-chips,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .cards-grid .card,
  .lane-services .cards-grid .card:nth-child(5),
  .lane-benefits .cards-grid .card,
  .lane-scenarios .cards-grid .card:nth-child(5) {
    grid-column: span 12;
  }

  h1 {
    font-size: clamp(2rem, 11vw, 2.75rem);
  }

  h2 {
    font-size: clamp(1.65rem, 8vw, 2.25rem);
  }
}

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

  .card-icon,
  .step-icon,
  .card-icon svg,
  .step-icon svg,
  .card-icon path,
  .step-icon path,
  .cards-grid .card {
    animation: none !important;
    transition: none !important;
  }

  .button,
  .header-cta {
    transition: none;
  }
}