/* Forest-cream timeline-led layout — Negantropy structural language */

:root {
  --gl-bg: #f1f7f4;
  --gl-bg-alt: #e4efe8;
  --gl-surface: #ffffff;
  --gl-surface-raised: #fafcf9;
  --gl-ink: #12323a;
  --gl-ink-muted: #3d5a62;
  --gl-ink-subtle: #5c7379;
  --gl-accent: #168796;
  --gl-accent-ink: #f5faf8;
  --gl-accent-alt: #2d6b4f;
  --gl-line: rgba(18, 50, 58, 0.14);
  --gl-glow: rgba(22, 135, 150, 0.22);
  --gl-cream: #f5ede0;
  --gl-forest: #1a3d32;
  --gl-font-display: "Segoe UI", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --gl-font-body: "Segoe UI", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --gl-font-mono: ui-monospace, "Cascadia Code", "SF Mono", Consolas, monospace;
  --gl-tracking-display: -0.025em;
  --gl-weight-display: 600;
  --gl-weight-body: 400;
  --gl-radius: 6px;
  --gl-radius-lg: 12px;
  --gl-border: 1px;
  --gl-duration-fast: 150ms;
  --gl-duration: 280ms;
  --gl-duration-slow: 700ms;
  --gl-ease: cubic-bezier(0.165, 0.84, 0.44, 1);
  --rail-width: clamp(220px, 18vw, 280px);
  --content-max: 1280px;
  --section-gap: clamp(3rem, 6vw, 5.5rem);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--gl-font-body);
  font-size: 16px;
  font-weight: var(--gl-weight-body);
  line-height: 1.55;
  color: var(--gl-ink);
  background: var(--gl-bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

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

/* Page shell — side rail + timeline main */

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

.side-rail {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  padding: clamp(1.25rem, 2vw, 2rem);
  border-right: var(--gl-border) solid var(--gl-line);
  background: var(--gl-surface-raised);
  z-index: 40;
  overflow: hidden;
}

.rail-brand-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--gl-ink);
}

.brand-logo {
  flex: none;
  width: 48px;
  height: 48px;
  max-width: 64px;
  max-height: 64px;
  border-radius: var(--gl-radius);
  background:
    linear-gradient(135deg, var(--gl-accent) 0%, var(--gl-accent-alt) 100%);
  position: relative;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.25);
}

.brand-logo::before,
.brand-logo::after {
  content: "";
  position: absolute;
  background: rgba(255, 255, 255, 0.85);
}

.brand-logo::before {
  left: 14px;
  top: 10px;
  width: 3px;
  height: 28px;
}

.brand-logo::after {
  left: 10px;
  top: 14px;
  width: 28px;
  height: 3px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
  line-height: 1.2;
}

.brand-text small {
  font-size: 12px;
  font-weight: 500;
  color: var(--gl-ink-muted);
  letter-spacing: 0.02em;
}

.rail-nav {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1;
}

.rail-nav a {
  display: block;
  padding: 0.55rem 0.65rem;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gl-ink-muted);
  border-radius: var(--gl-radius);
  transition: color var(--gl-duration-fast) var(--gl-ease),
    background var(--gl-duration-fast) var(--gl-ease);
}

.rail-nav a:hover {
  color: var(--gl-accent);
  background: rgba(22, 135, 150, 0.08);
}

.rail-cta,
.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.1rem;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gl-accent-ink);
  background: var(--gl-accent);
  border-radius: 999px;
  transition: background var(--gl-duration) var(--gl-ease),
    transform var(--gl-duration-fast) var(--gl-ease);
  white-space: nowrap;
}

.rail-cta:hover,
.header-cta:hover {
  background: var(--gl-accent-alt);
}

.timeline-main {
  position: relative;
  min-width: 0;
  padding: 0 clamp(1rem, 3vw, 3rem);
}

.timeline-spine {
  position: absolute;
  left: clamp(0.5rem, 1.5vw, 1.25rem);
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(
    to bottom,
    transparent,
    var(--gl-line) 4%,
    var(--gl-line) 96%,
    transparent
  );
  pointer-events: none;
}

.content-flow {
  position: relative;
  max-width: var(--content-max);
  margin: 0 auto;
}

/* Timeline sections */

.timeline-section {
  position: relative;
  padding: var(--section-gap) 0 var(--section-gap) clamp(2.5rem, 4vw, 3.5rem);
}

.timeline-section:first-child {
  padding-top: clamp(2rem, 4vw, 3rem);
}

.timeline-node {
  position: absolute;
  left: clamp(-0.15rem, 0.5vw, 0.35rem);
  top: calc(var(--section-gap) + 0.35rem);
  width: 2.5rem;
  display: flex;
  justify-content: center;
  z-index: 2;
}

.node-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
  padding: 0 0.35rem;
  font-family: var(--gl-font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--gl-accent);
  background: var(--gl-surface);
  border: var(--gl-border) solid var(--gl-line);
  border-radius: 999px;
  box-shadow: 0 2px 8px rgba(18, 50, 58, 0.06);
}

.node-index::before {
  content: attr(data-idx);
}

.timeline-alt {
  background: linear-gradient(90deg, transparent, rgba(228, 239, 232, 0.45) 30%, transparent);
}

.section-inner {
  width: 100%;
}

/* Hero */

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  gap: clamp(1.5rem, 3vw, 3rem);
  align-items: center;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  min-width: 0;
}

.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--gl-font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gl-ink-muted);
}

.eyebrow::before,
.section-kicker::before {
  content: "";
  width: 1.5rem;
  height: 1px;
  background: var(--gl-accent);
  opacity: 0.6;
}

h1 {
  font-family: var(--gl-font-display);
  font-size: clamp(2rem, 4.8vw, 3.75rem);
  font-weight: var(--gl-weight-display);
  line-height: 1.02;
  letter-spacing: var(--gl-tracking-display);
  color: var(--gl-ink);
  max-width: 16ch;
}

h2 {
  font-family: var(--gl-font-display);
  font-size: clamp(1.5rem, 3.2vw, 2.5rem);
  font-weight: var(--gl-weight-display);
  line-height: 1.08;
  letter-spacing: var(--gl-tracking-display);
  color: var(--gl-ink);
  max-width: 22ch;
}

h3 {
  font-family: var(--gl-font-display);
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  font-weight: 600;
  line-height: 1.25;
  color: var(--gl-ink);
}

.lead,
.section-heading > p,
.hero-copy .lead {
  font-size: clamp(14px, 1.05vw, 17px);
  line-height: 1.6;
  color: var(--gl-ink-muted);
  max-width: 48ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.35rem;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  border-radius: 999px;
  border: var(--gl-border) solid transparent;
  transition: background var(--gl-duration) var(--gl-ease),
    color var(--gl-duration) var(--gl-ease),
    border-color var(--gl-duration) var(--gl-ease);
  white-space: nowrap;
}

.button-primary {
  color: var(--gl-accent-ink);
  background: var(--gl-accent);
}

.button-primary:hover {
  background: var(--gl-accent-alt);
}

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

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

.geo-line {
  font-family: var(--gl-font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gl-ink-subtle);
}

.hero-visual {
  width: 100%;
  height: clamp(220px, 24vw, 400px);
  max-height: 52vh;
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-radius: var(--gl-radius-lg);
  background:
    radial-gradient(ellipse 80% 70% at 50% 55%, rgba(22, 135, 150, 0.12), transparent 70%),
    linear-gradient(160deg, var(--gl-cream) 0%, var(--gl-bg-alt) 100%);
  border: var(--gl-border) solid var(--gl-line);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.8) inset,
    0 16px 40px rgba(18, 50, 58, 0.08);
}

/* Section headings */

.section-heading {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
  max-width: 52ch;
}

.section-heading > p {
  font-size: clamp(14px, 1.05vw, 16px);
}

/* Cards grid */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(0.85rem, 1.5vw, 1.25rem);
}

.card {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: clamp(1rem, 2vw, 1.35rem);
  background: var(--gl-surface);
  border: var(--gl-border) solid var(--gl-line);
  border-radius: var(--gl-radius-lg);
  box-shadow: 0 4px 16px rgba(18, 50, 58, 0.04);
  transition: border-color var(--gl-duration) var(--gl-ease),
    box-shadow var(--gl-duration) var(--gl-ease);
}

.card:hover {
  border-color: rgba(22, 135, 150, 0.35);
  box-shadow: 0 8px 24px rgba(18, 50, 58, 0.08);
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--gl-radius);
  background: rgba(22, 135, 150, 0.1);
  position: relative;
}

.card-icon::after {
  content: "";
  width: 14px;
  height: 14px;
  border: 2px solid var(--gl-accent);
  border-radius: 2px;
}

.card-icon[data-icon="monitor"]::after {
  border-radius: 2px;
  box-shadow: 0 3px 0 -1px var(--gl-accent);
}

.card-icon[data-icon="scaffold"]::after {
  width: 12px;
  height: 12px;
  border: none;
  background:
    linear-gradient(var(--gl-accent) 0 0) 50% 0 / 2px 100% no-repeat,
    linear-gradient(var(--gl-accent) 0 0) 0 50% / 100% 2px no-repeat;
}

.card-icon[data-icon="ruler"]::after {
  width: 16px;
  height: 8px;
  border-width: 1px;
}

.card-icon[data-icon="delivery"]::after {
  width: 14px;
  height: 10px;
  border-radius: 2px 2px 0 0;
  border-bottom: none;
}

.card-icon[data-icon="crane"]::after,
.card-icon[data-icon="tools"]::after,
.card-icon[data-icon="shield"]::after,
.card-icon[data-icon="layers"]::after {
  border-radius: 50%;
  border-width: 2px;
}

.card-label {
  font-family: var(--gl-font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gl-accent);
}

.card p {
  font-size: clamp(14px, 1vw, 15px);
  color: var(--gl-ink-muted);
  line-height: 1.55;
}

.card small {
  font-size: 12px;
  color: var(--gl-ink-subtle);
  letter-spacing: 0.04em;
}

/* Guide chapters */

.guide-body {
  display: grid;
  gap: clamp(1rem, 2vw, 1.5rem);
}

.chapter {
  padding: clamp(1rem, 2vw, 1.5rem);
  background: var(--gl-surface);
  border: var(--gl-border) solid var(--gl-line);
  border-left: 3px solid var(--gl-accent);
  border-radius: var(--gl-radius-lg);
}

.chapter p {
  margin: 0.65rem 0;
  font-size: clamp(14px, 1vw, 15px);
  color: var(--gl-ink-muted);
}

.chapter ul {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-top: 0.75rem;
}

.chapter li {
  position: relative;
  padding-left: 1.1rem;
  font-size: clamp(14px, 1vw, 15px);
  color: var(--gl-ink-muted);
}

.chapter li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gl-accent);
}

/* Process timeline */

.process-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(0.75rem, 1.5vw, 1rem);
  counter-reset: step;
}

.process-list li {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 1rem;
  background: var(--gl-surface);
  border: var(--gl-border) solid var(--gl-line);
  border-radius: var(--gl-radius-lg);
  position: relative;
}

.process-list li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--gl-font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--gl-accent);
  letter-spacing: 0.08em;
}

.step-icon {
  display: inline-flex;
  width: 2rem;
  height: 2rem;
  border-radius: var(--gl-radius);
  background: rgba(22, 135, 150, 0.1);
  position: relative;
}

.step-icon::after {
  content: "";
  position: absolute;
  inset: 6px;
  border: 2px solid var(--gl-accent);
  border-radius: 2px;
}

.process-list li p {
  font-size: clamp(14px, 1vw, 15px);
  color: var(--gl-ink-muted);
}

/* FAQ accordion */

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

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

.faq-list summary {
  padding: 1rem 1.15rem;
  font-size: 15px;
  font-weight: 600;
  color: var(--gl-ink);
  cursor: pointer;
  list-style: none;
}

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

.faq-list summary::after {
  content: "+";
  float: right;
  font-family: var(--gl-font-mono);
  font-size: 14px;
  color: var(--gl-accent);
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  padding: 0 1.15rem 1rem;
  font-size: clamp(14px, 1vw, 15px);
  color: var(--gl-ink-muted);
}

/* Geography */

.geo-chips {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(0.75rem, 1.5vw, 1rem);
}

.geo-chip {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1.1rem;
  background: var(--gl-surface);
  border: var(--gl-border) solid var(--gl-line);
  border-radius: var(--gl-radius-lg);
}

.geo-chip strong {
  font-size: 15px;
  font-weight: 600;
  color: var(--gl-ink);
}

.geo-chip span {
  font-size: clamp(14px, 1vw, 15px);
  color: var(--gl-ink-muted);
}

/* Contact */

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

.contact-grid > div:first-child p {
  margin-top: 0.75rem;
  font-size: clamp(14px, 1vw, 15px);
  color: var(--gl-ink-muted);
}

/* Footer */

.site-footer {
  padding-bottom: clamp(2rem, 4vw, 3rem);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: clamp(1rem, 2vw, 2rem);
  padding: clamp(1.25rem, 2vw, 1.75rem);
  background: var(--gl-forest);
  color: var(--gl-cream);
  border-radius: var(--gl-radius-lg);
}

.footer-brand {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.footer-coverage {
  margin-top: 0.5rem;
  font-size: 14px;
  color: rgba(245, 237, 224, 0.92);
}

.footer-grid h3 {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(245, 237, 224, 0.85);
  margin-bottom: 0.65rem;
}

.footer-grid a,
.footer-grid p {
  display: block;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 237, 224, 0.78);
  transition: color var(--gl-duration-fast) var(--gl-ease);
}

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

/* Tablet */

@media (max-width: 1024px) {
  .page-shell {
    grid-template-columns: 1fr;
  }

  .side-rail {
    position: relative;
    height: auto;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    border-right: none;
    border-bottom: var(--gl-border) solid var(--gl-line);
    padding: 0.85rem 1rem;
    gap: 0.75rem 1rem;
  }

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

  .brand-logo {
    width: 40px;
    height: 40px;
  }

  .rail-nav {
    flex: 1 1 100%;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.25rem;
  }

  .rail-nav a {
    padding: 0.45rem 0.55rem;
    font-size: 12px;
  }

  .rail-cta {
    flex: none;
    padding: 0.55rem 0.9rem;
    font-size: 12px;
  }

  .timeline-spine {
    left: 0.35rem;
  }

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

  .hero-visual {
    max-height: 44vh;
  }

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

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

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

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

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

/* Mobile */

@media (max-width: 640px) {
  .timeline-main {
    padding: 0 0.85rem;
  }

  .timeline-section {
    padding-left: 2rem;
  }

  .timeline-node {
    left: -0.25rem;
  }

  .node-index {
    min-width: 1.65rem;
    height: 1.65rem;
    font-size: 11px;
  }

  h1 {
    max-width: none;
  }

  h2 {
    max-width: none;
  }

  .hero-visual {
    max-height: 38vh;
    height: clamp(220px, 52vw, 320px);
  }

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

  .process-list {
    grid-template-columns: 1fr;
  }

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

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

  .button {
    width: 100%;
    justify-content: center;
  }
}

/* Wide desktop balance */

@media (min-width: 1440px) {
  .content-flow {
    max-width: min(var(--content-max), calc(100% - 2rem));
  }

  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }

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

@media (min-width: 2160px) {
  .page-shell {
    padding: 0 2rem;
  }

  .content-flow {
    max-width: 1400px;
  }
}

/* Reduced motion */

@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;
  }
}

body .fact-disclaimer,footer .footer-coverage{font-size:max(14px,.875rem)!important;line-height:1.5!important;color:inherit!important;opacity:1!important}.contact-form,.contact-form fieldset,.contact-form input,.contact-form textarea,.contact-form select{min-width:0;max-width:100%;box-sizing:border-box}.contact-form button{max-width:100%;white-space:normal;overflow-wrap:anywhere}
.contact-grid>*{min-width:0}.contact-form{width:100%}