/* TripScan variant 1 — editorial sediment atlas layout */
:root {
  --page: #f8f1de;
  --surface: #fffdf8;
  --surface-alt: #f0e8d4;
  --text: #4f220f;
  --muted: #7a6348;
  --accent: #9c6638;
  --accent-alt: #b0ba98;
  --ink-strong: #2a1408;
  --rule: color-mix(in srgb, var(--text) 18%, transparent);
  --radius: 2px;
  --radius-soft: 18px;
  --section-space: clamp(4rem, 8vw, 7rem);
  --gutter: clamp(1.25rem, 3vw, 2.5rem);
  --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);
  --max: 1240px;
}

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

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

body {
  margin: 0;
  min-width: 0;
  overflow-x: hidden;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--accent-alt) 14%, transparent), transparent 28%),
    repeating-linear-gradient(
      -12deg,
      transparent,
      transparent 38px,
      color-mix(in srgb, var(--accent) 5%, transparent) 38px,
      color-mix(in srgb, var(--accent) 5%, transparent) 39px
    ),
    var(--page);
}

body.donor-layout-tripc86-top {
  --page: #f8f1de;
  --surface: #fffdf8;
  --text: #4f220f;
  --muted: #7a6348;
  --accent: #9c6638;
  --accent-alt: #b0ba98;
}

img, svg, video, canvas { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, p { margin-top: 0; }

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

/* Masthead */
.site-header.masthead {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--page) 92%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule);
}

.masthead-bar {
  width: min(var(--max), calc(100% - var(--gutter) * 2));
  margin: 0 auto;
  min-height: 76px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
}

.masthead-brand .brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.brand-logo {
  width: 42px;
  height: 42px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--rule);
  background: var(--surface);
}

.brand-logo svg { width: 100%; height: 100%; }
.brand small { display: block; font-family: var(--font-mono); font-size: 0.62rem; font-weight: 500; color: var(--muted); letter-spacing: 0.08em; text-transform: uppercase; }

.masthead-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
}

.masthead-nav a {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  border: 1px solid transparent;
  color: var(--muted);
}

.masthead-nav a:hover {
  color: var(--ink-strong);
  border-color: var(--rule);
  background: var(--surface);
}

.header-cta, .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.82rem 1.35rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.88rem;
  letter-spacing: 0.02em;
  border: 1px solid var(--accent);
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.header-cta {
  background: var(--ink-strong);
  color: var(--page);
  border-color: var(--ink-strong);
  white-space: nowrap;
}

.header-cta:hover { transform: translateY(-1px); background: var(--accent); border-color: var(--accent); }

.masthead-rule {
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-alt), transparent);
}

.page-main { width: 100%; }

/* Hero — editorial stack */
.hero.component-hero {
  padding: clamp(1.5rem, 4vw, 3rem) 0 var(--section-space);
}

.hero-stage {
  width: min(var(--max), calc(100% - var(--gutter) * 2));
  margin: 0 auto 2.5rem;
}

.hero-visual {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: var(--radius-soft);
  border: 1px solid var(--rule);
  box-shadow: var(--shadow-soft);
  background: color-mix(in srgb, var(--surface-alt) 80%, var(--accent-alt));
}

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

.hero-editorial {
  width: min(var(--max), calc(100% - var(--gutter) * 2));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 0.35fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: end;
}

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

.eyebrow, .section-kicker {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6.5vw, 4.8rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
  color: var(--ink-strong);
  margin-bottom: 1.25rem;
  max-width: 14ch;
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4vw, 3.2rem);
  line-height: 1.05;
  letter-spacing: -0.025em;
  color: var(--ink-strong);
  margin-bottom: 0.85rem;
}

h3 {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  line-height: 1.2;
  color: var(--ink-strong);
}

.lead {
  font-size: clamp(1.05rem, 1.8vw, 1.28rem);
  line-height: 1.55;
  color: var(--muted);
  max-width: 52ch;
}

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

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.75rem 0 1.25rem;
}

.button-primary {
  background: var(--accent);
  color: var(--surface);
  border-color: var(--accent);
}

.button-primary:hover { background: var(--ink-strong); border-color: var(--ink-strong); }

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

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

.geo-line {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

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

.band:nth-child(even) {
  background: color-mix(in srgb, var(--surface) 72%, transparent);
}

.section-inner {
  width: min(var(--max), calc(100% - var(--gutter) * 2));
  margin: 0 auto;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 2.75rem;
}

.section-heading > p { font-size: 1.05rem; max-width: 62ch; }

/* Bento services grid */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 1rem;
}

.bento-grid .card:nth-child(1) { grid-column: span 7; }
.bento-grid .card:nth-child(2) { grid-column: span 5; }
.bento-grid .card:nth-child(3) { grid-column: span 4; }
.bento-grid .card:nth-child(4) { grid-column: span 4; }
.bento-grid .card:nth-child(5) { grid-column: span 4; }

/* Compare stack */
.compare-stack {
  display: grid;
  gap: 0;
  border: 1px solid var(--rule);
  border-radius: var(--radius-soft);
  overflow: hidden;
  background: var(--surface);
}

.compare-stack .card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1.25rem;
  align-items: start;
  border-radius: 0;
  border: none;
  border-bottom: 1px solid var(--rule);
  box-shadow: none;
}

.compare-stack .card:last-child { border-bottom: none; }

/* Scenario mosaic */
.scenario-mosaic {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1rem;
}

.scenario-mosaic .card:nth-child(1) { grid-column: span 3; grid-row: span 2; }
.scenario-mosaic .card:nth-child(2) { grid-column: span 3; }
.scenario-mosaic .card:nth-child(3) { grid-column: span 3; }
.scenario-mosaic .card:nth-child(4) { grid-column: span 6; }

/* Cards */
.card {
  min-width: 0;
  padding: 1.5rem 1.4rem;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius-soft);
  box-shadow: var(--shadow-soft);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
}

.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) 35%, transparent);
  background: color-mix(in srgb, var(--accent-alt) 35%, var(--surface));
  border-radius: 12px;
}

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

.card-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.65rem;
}

.card-value {
  display: block;
  margin-top: 1rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--ink-strong);
}

.card small { display: block; margin-top: 0.35rem; color: var(--muted); font-size: 0.82rem; }

/* Process timeline */
.timeline-rail {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  position: relative;
}

.timeline-rail::before {
  content: "";
  position: absolute;
  left: 22px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent-alt));
}

.timeline-rail li {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 1.25rem;
  padding: 1.5rem 0 1.5rem 0.5rem;
  border-bottom: 1px dashed var(--rule);
}

.timeline-rail li:last-child { border-bottom: none; }

.timeline-rail .step-icon {
  margin: 0;
  position: relative;
  z-index: 1;
  border-radius: 50%;
  background: var(--surface);
}

/* Geography strip */
.region-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--rule);
  border-radius: var(--radius-soft);
  overflow: hidden;
}

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

.geo-chip:last-child { border-right: none; }

.geo-chip strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--ink-strong);
  margin-bottom: 0.65rem;
}

.geo-chip span { display: block; font-size: 0.88rem; color: var(--muted); line-height: 1.55; }

/* Guide columns */
.guide-columns {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  counter-reset: chapter;
}

.chapter {
  padding: 1.5rem 0 1.5rem 3.5rem;
  border-top: 1px solid var(--rule);
  position: relative;
}

.chapter::before {
  counter-increment: chapter;
  content: counter(chapter, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1.45rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--accent);
}

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

/* FAQ */
.faq-list { max-width: 820px; }

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

.faq-list summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--ink-strong);
  list-style: none;
}

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

.faq-list p { padding-right: 1rem; margin-bottom: 0; }

/* Contact */
.contact-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.contact-split-reverse { direction: rtl; }
.contact-split-reverse > * { direction: ltr; }

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

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

input, textarea {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--rule);
  background: var(--page);
  padding: 0.85rem 0.95rem;
  border-radius: var(--radius);
}

textarea { min-height: 120px; resize: vertical; }

.form-message { color: var(--accent); margin: 0; font-weight: 600; }

/* Footer */
.site-footer.editorial-footer {
  padding: 3.5rem 0 4rem;
  background: var(--ink-strong);
  color: color-mix(in srgb, var(--page) 88%, white);
  border-top: none;
}

.site-footer.editorial-footer p,
.site-footer.editorial-footer a { color: color-mix(in srgb, var(--page) 72%, white); }

.site-footer.editorial-footer h3 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-alt);
}

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

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

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

/* Icon motion */
.icon-draw path { stroke-dasharray: 34 8; animation: iconDraw 5.8s linear infinite; }
.icon-pulse { transform-box: fill-box; transform-origin: center; animation: iconPulse 3.8s ease-in-out infinite; }
.icon-slide { animation: iconSlide 4.6s ease-in-out infinite; }
.icon-spin { transform-box: fill-box; transform-origin: center; animation: iconSpin 10s linear infinite; }

@keyframes iconDraw { to { stroke-dashoffset: -84; } }
@keyframes iconPulse { 50% { transform: scale(0.88); opacity: 0.72; } }
@keyframes iconSlide { 50% { transform: translateX(3px); } }
@keyframes iconSpin { to { transform: rotate(360deg); } }

/* Responsive */
@media (max-width: 1024px) {
  .masthead-bar { grid-template-columns: 1fr auto; }
  .masthead-nav { display: none; }
  .hero-editorial { grid-template-columns: 1fr; }
  h1 { max-width: none; }
  .bento-grid .card { grid-column: span 12 !important; }
  .scenario-mosaic .card { grid-column: span 6 !important; grid-row: auto !important; }
  .region-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .geo-chip:nth-child(2) { border-right: none; }
  .geo-chip { border-bottom: 1px solid var(--rule); }
  .contact-split, .contact-split-reverse { grid-template-columns: 1fr; direction: ltr; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .masthead-bar { min-height: 64px; }
  .header-cta { padding: 0.65rem 0.95rem; font-size: 0.8rem; }
  .hero-visual { aspect-ratio: 4 / 3; border-radius: var(--radius); }
  .region-strip { grid-template-columns: 1fr; }
  .geo-chip { border-right: none; }
  .compare-stack .card { grid-template-columns: 1fr; }
  .timeline-rail::before { left: 16px; }
  .timeline-rail li { grid-template-columns: 36px minmax(0, 1fr); }
  .band { padding: 3.5rem 0; }
}

@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,
  .icon-draw, .icon-pulse, .icon-slide, .icon-spin,
  .card, .header-cta, .button { animation: none !important; transition: none !important; }
}