:root {
  --page: #0c0c0c;
  --page-alt: #000000;
  --surface: #161616;
  --surface-raised: #1e1e1e;
  --text: #ffedc3;
  --muted: rgba(255, 237, 195, 0.55);
  --muted-soft: rgba(255, 237, 195, 0.38);
  --accent: #ff3b30;
  --accent-alt: #34d4d0;
  --line: rgba(255, 237, 195, 0.14);
  --glow: rgba(255, 59, 48, 0.22);
  --radius: 4px;
  --radius-lg: 12px;
  --section-space: clamp(4rem, 8vw, 7rem);
  --rail-width: clamp(220px, 18vw, 280px);
  --content-max: min(1280px, calc(100% - 2rem));
  --font-display: Georgia, "Times New Roman", Times, serif;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "Segoe UI Mono", monospace;
  --ease: cubic-bezier(0.2, 0, 0, 1);
  --duration: 280ms;
}

*, *::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, 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 {
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 4.8vw, 4.6rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  font-weight: 400;
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 3.2vw, 3rem);
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin-bottom: 0.85rem;
  font-weight: 400;
}

h3 {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 1.6vw, 1.35rem);
  line-height: 1.2;
  font-weight: 400;
}

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

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

.site-rail {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 1.5rem;
  padding: 1.5rem 1.25rem;
  border-right: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 59, 48, 0.06), transparent 38%),
    var(--page);
  z-index: 40;
}

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

.rail-brand-row { align-items: center; }

.rail-nav-row {
  flex-direction: column;
  justify-content: center;
  gap: 0.35rem;
}

.rail-cta-row { align-items: end; }

.brand {
  display: grid;
  grid-template-columns: min(64px, 100%) minmax(0, 1fr);
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 0.95rem;
  min-width: 0;
}

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

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

.brand small {
  display: block;
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--muted-soft);
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

.site-rail nav a {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-soft);
  padding: 0.55rem 0.65rem;
  border-left: 2px solid transparent;
  transition: color var(--duration) var(--ease), border-color var(--duration) var(--ease), background var(--duration) var(--ease);
}

.site-rail nav a:hover {
  color: var(--text);
  border-left-color: var(--accent);
  background: rgba(255, 237, 195, 0.04);
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.78rem 1.15rem;
  border: 1px solid var(--accent);
  border-radius: 999px;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  transition: transform var(--duration) var(--ease), background var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

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

.header-cta:hover,
.button-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 28px var(--glow);
}

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

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

.page-canvas {
  min-width: 0;
  background:
    radial-gradient(circle at 82% 8%, rgba(52, 212, 208, 0.08), transparent 34%),
    radial-gradient(circle at 12% 92%, rgba(255, 59, 48, 0.07), transparent 28%),
    var(--page);
}

.page-main {
  width: min(var(--content-max), calc(100% - clamp(1.5rem, 4vw, 3rem)));
  margin: 0 auto;
}

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

.hero-stage {
  padding: clamp(2rem, 5vw, 4.5rem) 0 var(--section-space);
}

.hero {
  padding: 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 1.08fr);
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
}

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

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

.lead {
  font-size: clamp(1rem, 1.5vw, 1.22rem);
  max-width: 46ch;
  color: rgba(255, 237, 195, 0.78);
}

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

.geo-line {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted-soft);
}

.hero-visual {
  overflow: hidden;
  width: 100%;
  min-height: clamp(280px, 36vw, 520px);
  aspect-ratio: 3 / 2;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.45);
}

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

.content-flow {
  display: grid;
  gap: 0;
}

.section {
  padding: var(--section-space) 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 2.25rem;
}

.section-heading > p { font-size: 1.02rem; }

.component-process .section-inner,
.component-geography .section-inner {
  display: grid;
  grid-template-columns: minmax(240px, 0.34fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 3vw, 3rem);
  align-items: start;
}

.component-process .section-heading,
.component-geography .section-heading {
  margin-bottom: 0;
  position: sticky;
  top: 1.5rem;
}

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

.component-services .card:nth-child(1) { grid-column: span 6; }
.component-services .card:nth-child(2) { grid-column: span 6; }
.component-services .card:nth-child(3) { grid-column: span 7; }
.component-services .card:nth-child(4) { grid-column: span 5; }

.component-benefits .card { grid-column: span 6; }
.component-scenarios .card:nth-child(1) { grid-column: span 5; }
.component-scenarios .card:nth-child(2) { grid-column: span 4; }
.component-scenarios .card:nth-child(3) { grid-column: span 3; }

.card {
  min-width: 0;
  padding: 1.35rem 1.4rem;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--line);
  transition: transform var(--duration) var(--ease), border-color var(--duration) var(--ease);
}

.card:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 237, 195, 0.28);
}

.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-alt);
  border: 1px solid rgba(52, 212, 208, 0.35);
  background: rgba(52, 212, 208, 0.08);
  border-radius: var(--radius);
}

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

.card-label {
  display: block;
  font-family: var(--font-mono);
  color: var(--accent-alt);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: 0.55rem;
}

.card small {
  display: block;
  color: var(--muted-soft);
  margin-top: 0.55rem;
  font-size: 0.82rem;
}

.process-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.85rem;
}

.process-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  padding: 1.15rem 1.2rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  counter-increment: step;
}

.process-list li::before {
  content: counter(step, decimal-leading-zero);
  grid-column: 2;
  grid-row: 1;
  justify-self: end;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--muted-soft);
  letter-spacing: 0.08em;
}

.component-process .process-list { counter-reset: step; }

.step-icon { margin-bottom: 0; align-self: start; }

.geo-chips {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.geo-chip {
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 237, 195, 0.03);
}

.geo-chip:nth-child(5) {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(180px, 0.35fr) minmax(0, 1fr);
  gap: 1rem;
}

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

.geo-chip span {
  color: var(--muted);
  font-size: 0.88rem;
}

.component-guide .section-inner {
  display: grid;
  grid-template-columns: minmax(220px, 0.28fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 3vw, 3rem);
  align-items: start;
}

.component-guide .section-heading {
  position: sticky;
  top: 1.5rem;
  margin-bottom: 0;
}

.guide-body {
  display: grid;
  gap: 1.25rem;
}

.chapter {
  padding: 1.2rem 0 1.2rem 1rem;
  border-left: 2px solid rgba(255, 59, 48, 0.45);
}

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

.faq-list { max-width: none; }

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

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

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

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

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: clamp(1.5rem, 3vw, 3rem);
  align-items: start;
}

.contact-form {
  display: grid;
  gap: 0.85rem;
  background: var(--surface);
  padding: 1.35rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
}

.contact-form label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted-soft);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

input, select, textarea {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--line);
  background: var(--page-alt);
  color: var(--text);
  padding: 0.8rem 0.85rem;
  border-radius: var(--radius);
}

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

.form-message {
  color: var(--accent-alt);
  margin: 0;
  font-size: 0.88rem;
}

.site-footer {
  padding: 3.5rem 0 4rem;
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.35));
  border-top: 1px solid var(--line);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.9fr 0.9fr;
  gap: 2rem;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
}

.site-footer a {
  display: block;
  color: var(--muted);
  margin: 0.35rem 0;
  font-size: 0.88rem;
}

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

.footer-coverage {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-soft);
}

@media (min-width: 1800px) {
  .page-main {
    width: min(1440px, calc(100% - 4rem));
  }

  .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;
    grid-template-rows: auto auto auto;
    border-right: none;
    border-bottom: 1px solid var(--line);
    padding: 1rem clamp(1rem, 3vw, 1.5rem);
  }

  .rail-brand-row {
    justify-content: space-between;
  }

  .rail-nav-row {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .site-rail nav a {
    border-left: none;
    border-bottom: 2px solid transparent;
    padding: 0.45rem 0.55rem;
  }

  .site-rail nav a:hover {
    border-bottom-color: var(--accent);
    border-left-color: transparent;
  }

  .rail-cta-row { justify-content: flex-end; }

  .header-cta { width: auto; }

  .component-process .section-inner,
  .component-geography .section-inner,
  .component-guide .section-inner {
    grid-template-columns: 1fr;
  }

  .component-process .section-heading,
  .component-guide .section-heading {
    position: static;
  }

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

  .component-services .card,
  .component-benefits .card,
  .component-scenarios .card {
    grid-column: span 1 !important;
  }

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

  .geo-chips { grid-template-columns: 1fr; }

  .geo-chip:nth-child(5) { grid-template-columns: 1fr; }
}

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

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

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

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

  .section { padding: 3.5rem 0; }

  h1 { font-size: clamp(2rem, 11vw, 2.8rem); }
}

@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,
  .header-cta:hover,
  .button-primary:hover {
    transform: none;
    box-shadow: none;
  }

  .card-icon svg path,
  .step-icon svg path,
  .brand-logo svg *,
  .hero-visual svg * {
    animation: none !important;
  }
}