/* Slow Route Field Atlas — variant 1 layout system */
:root {
  --page: #f8f1de;
  --surface: #fffdf8;
  --text: #4f220f;
  --muted: #7a5c42;
  --accent: #9c6638;
  --accent-alt: #b0ba98;
  --ink-soft: #6b5340;
  --rail-w: clamp(220px, 16vw, 300px);
  --canvas-max: 1680px;
  --radius: 18px;
  --radius-sm: 10px;
  --section-space: clamp(4rem, 8vw, 7rem);
  --shadow: 0 18px 48px color-mix(in srgb, var(--text) 8%, transparent);
  --font-display: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::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);
  background-image:
    radial-gradient(circle at 12% 8%, color-mix(in srgb, var(--accent-alt) 28%, transparent), transparent 42%),
    radial-gradient(circle at 88% 92%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 38%),
    repeating-linear-gradient(125deg, transparent 0 48px, color-mix(in srgb, var(--accent-alt) 7%, transparent) 49px 50px);
}

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: 1.08;
}

h1 {
  font-size: clamp(2.2rem, 4.8vw, 4.4rem);
  margin-bottom: 1.25rem;
  max-width: 14ch;
}

h2 {
  font-size: clamp(1.75rem, 3.2vw, 3rem);
  margin-bottom: 0.85rem;
}

h3 {
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
  line-height: 1.25;
}

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

/* Shell: side rail + balanced canvas */
.page-shell {
  display: grid;
  grid-template-columns: var(--rail-w) minmax(0, 1fr);
  min-height: 100vh;
  max-width: 2160px;
  margin: 0 auto;
}

.site-rail {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: clamp(1.25rem, 2vw, 2rem) clamp(1rem, 1.5vw, 1.5rem);
  border-right: 1px solid color-mix(in srgb, var(--text) 12%, transparent);
  background: color-mix(in srgb, var(--surface) 88%, var(--page));
  backdrop-filter: blur(12px);
  z-index: 40;
  min-width: 0;
}

.rail-brand-row,
.rail-nav-row,
.rail-cta-row {
  display: flex;
  min-width: 0;
}

.rail-brand-row { flex: 0 0 auto; }

.rail-nav-row {
  flex: 1 1 auto;
  align-items: flex-start;
  overflow: auto;
}

.rail-cta-row { flex: 0 0 auto; margin-top: auto; }

.brand {
  display: grid;
  grid-template-columns: minmax(0, 64px) minmax(0, 1fr);
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1rem;
  min-width: 0;
}

.brand-logo {
  display: block;
  width: 64px;
  height: 64px;
  max-width: 64px;
  max-height: 64px;
  border-radius: var(--radius-sm);
  object-fit: contain;
  overflow: hidden;
  flex: 0 0 auto;
}

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

.brand small {
  display: block;
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
}

.rail-nav {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  width: 100%;
  min-width: 0;
}

.rail-nav a {
  display: block;
  font-size: 0.82rem;
  color: var(--muted);
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.rail-nav a:hover {
  color: var(--text);
  border-color: color-mix(in srgb, var(--accent) 35%, transparent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
}

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

.rail-cta {
  width: 100%;
  white-space: normal;
  text-align: center;
}

.button-primary,
.header-cta {
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 70%, var(--accent-alt)));
  color: var(--surface);
}

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

.button:hover,
.header-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.page-canvas {
  min-width: 0;
  display: flex;
  justify-content: center;
}

.page-main {
  width: min(100%, calc(var(--canvas-max) - var(--rail-w)));
  padding: 0 clamp(1.25rem, 3vw, 3rem);
}

/* Hero — editorial split with atlas visual */
.hero {
  padding: clamp(2.5rem, 5vw, 5rem) 0 var(--section-space);
}

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

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

.eyebrow,
.section-kicker {
  display: inline-block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 800;
  margin-bottom: 1rem;
  color: var(--accent);
}

.lead {
  font-size: clamp(1.02rem, 1.5vw, 1.22rem);
  max-width: 52ch;
}

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

.geo-line {
  font-size: 0.82rem;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.hero-visual {
  overflow: hidden;
  width: 100%;
  aspect-ratio: 3 / 2;
  border-radius: calc(var(--radius) + 6px);
  border: 2px solid color-mix(in srgb, var(--accent) 30%, transparent);
  background: color-mix(in srgb, var(--surface) 90%, var(--accent-alt));
  box-shadow: var(--shadow);
  min-height: 0 !important;
}

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

/* Sections */
.section {
  padding: var(--section-space) 0;
  border-top: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
}

.section-heading {
  max-width: 68ch;
  margin-bottom: 2rem;
}

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

/* Cards — staggered editorial grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 1rem;
}

.cards-grid .card {
  grid-column: span 4;
  min-width: 0;
}

.cards-grid .card:nth-child(3n+1) { grid-column: span 5; }
.cards-grid .card:nth-child(3n+2) { grid-column: span 4; margin-top: 1.5rem; }
.cards-grid .card:nth-child(3n) { grid-column: span 3; margin-top: 0.75rem; }

.card {
  padding: 1.35rem 1.4rem;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid color-mix(in srgb, var(--text) 12%, transparent);
  border-left: 4px solid var(--accent);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--text) 4%, transparent);
  transition: transform 0.3s ease;
}

.card:hover { transform: translateY(-4px); }

.card p { margin-bottom: 0; }

.card-icon,
.step-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 0.85rem;
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border-radius: 12px;
}

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

.card-label {
  display: block;
  color: var(--accent);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 0.55rem;
}

.card-value {
  display: block;
  margin-top: 0.85rem;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 700;
}

.card small {
  display: block;
  color: var(--muted);
  margin-top: 0.35rem;
}

/* Process — horizontal timeline */
.process-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.process-list li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 0.85rem;
  padding: 1.2rem;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
  min-width: 0;
}

.step-icon { margin-bottom: 0; }

/* Geography chips */
.geo-chips {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.geo-chip {
  padding: 1.2rem 1.25rem;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid color-mix(in srgb, var(--accent-alt) 45%, transparent);
}

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

.geo-chip span {
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

/* Guide — chapter stack */
.guide-body {
  display: grid;
  gap: 1.25rem;
}

.chapter {
  padding: 1.35rem 1.4rem;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
}

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

/* FAQ */
.faq-list { max-width: 900px; }

.faq-list details {
  border-bottom: 1px solid color-mix(in srgb, var(--text) 14%, transparent);
  padding: 1rem 0;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 800;
  color: var(--text);
}

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

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

.contact-form {
  display: grid;
  gap: 0.9rem;
  background: var(--surface);
  padding: 1.4rem;
  border-radius: var(--radius);
  border: 1px solid color-mix(in srgb, var(--text) 12%, transparent);
  box-shadow: var(--shadow);
}

.contact-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 color-mix(in srgb, var(--text) 18%, transparent);
  background: var(--page);
  color: var(--text);
  padding: 0.8rem 0.85rem;
  border-radius: var(--radius-sm);
}

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

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

/* Footer */
.site-footer {
  padding: 3.5rem 0 4rem;
  background: color-mix(in srgb, var(--surface) 75%, var(--page));
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 2rem;
}

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

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

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

/* Icon motion — 10s+ loops */
.icon-draw path { stroke-dasharray: 34 8; animation: iconDraw 12s 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 14s linear infinite; }

@keyframes iconDraw { to { stroke-dashoffset: -84; } }
@keyframes iconPulse { 50% { transform: scale(0.9); opacity: 0.75; } }
@keyframes iconSlide { 50% { transform: translateX(3px); } }
@keyframes iconSpin { to { transform: rotate(360deg); } }

/* Wide desktop balance */
@media (min-width: 1440px) {
  .page-main {
    padding-left: clamp(2rem, 4vw, 4rem);
    padding-right: clamp(2rem, 4vw, 4rem);
  }

  .hero-atlas .hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(480px, 1.15fr);
  }
}

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

  .site-rail {
    position: relative;
    height: auto;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    border-right: none;
    border-bottom: 1px solid color-mix(in srgb, var(--text) 12%, transparent);
  }

  .rail-brand-row { flex: 1 1 auto; }

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

  .rail-nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.35rem;
  }

  .rail-cta-row {
    flex: 0 0 auto;
    margin-top: 0;
    order: 2;
  }

  .rail-cta { width: auto; }

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

  .cards-grid .card,
  .cards-grid .card:nth-child(3n+1),
  .cards-grid .card:nth-child(3n+2),
  .cards-grid .card:nth-child(3n) {
    grid-column: span 6;
    margin-top: 0;
  }

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

@media (max-width: 640px) {
  .page-main { padding: 0 1rem; }

  .site-rail { padding: 0.85rem 1rem; }

  .brand {
    grid-template-columns: minmax(0, 48px) minmax(0, 1fr);
  }

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

  .rail-nav a { font-size: 0.74rem; padding: 0.45rem 0.6rem; }

  .hero { padding-top: 1.5rem; }

  .hero-visual { min-height: 240px !important; }

  .cards-grid .card,
  .cards-grid .card:nth-child(3n+1),
  .cards-grid .card:nth-child(3n+2),
  .cards-grid .card:nth-child(3n) {
    grid-column: span 12;
  }

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

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

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

  h1 { max-width: none; }
}

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

  .icon-draw path,
  .icon-pulse,
  .icon-slide,
  .icon-spin,
  .card-icon svg,
  .step-icon svg {
    animation: none !important;
  }

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