/* Evolve-inspired blueprint instrument layout — variant 1 */
:root {
  --page: #050608;
  --surface: #101820;
  --surface-elevated: #16202c;
  --text: #f4f7fb;
  --muted: rgba(244, 247, 251, 0.58);
  --accent-a: #8dd8ff;
  --accent-b: #4c97ff;
  --accent-signal: #ff4d6d;
  --rule: rgba(255, 255, 255, 0.14);
  --rule-strong: rgba(255, 255, 255, 0.22);
  --rail-width: clamp(220px, 16vw, 300px);
  --content-max: min(1480px, calc(100% - clamp(1.5rem, 4vw, 4rem)));
  --section-space: clamp(4.5rem, 8vw, 7.5rem);
  --radius: 4px;
  --radius-panel: 12px;
  --font-display: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: ui-monospace, "Cascadia Mono", "SFMono-Regular", Menlo, Consolas, monospace;
}

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

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

body {
  margin: 0;
  min-width: 0;
  overflow-x: hidden;
  line-height: 1.62;
  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%, #000 20%, transparent 75%);
}

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, 4.75rem);
  line-height: 0.98;
  letter-spacing: -0.045em;
  font-weight: 500;
  margin-bottom: 1.35rem;
  max-width: 14ch;
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 3.2vw, 3.1rem);
  line-height: 1.04;
  letter-spacing: -0.035em;
  font-weight: 500;
  margin-bottom: 1rem;
}

h3 {
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
  line-height: 1.22;
  font-weight: 600;
}

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

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

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

.page-content {
  width: 100%;
  max-width: calc(var(--content-max) + var(--rail-width));
  padding-inline: clamp(1rem, 2.5vw, 2.5rem);
}

/* Side rail header */
.site-rail-header {
  position: sticky;
  top: 0;
  align-self: start;
  z-index: 40;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  padding: clamp(1.25rem, 2vw, 2rem);
  border-right: 1px solid var(--rule-strong);
  background: color-mix(in srgb, var(--page) 88%, var(--surface));
  backdrop-filter: blur(10px);
}

.site-rail-header .header-inner {
  width: 100%;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 1.5rem;
  margin: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1rem;
  min-width: 0;
}

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

.brand-logo {
  display: block;
  width: clamp(44px, 4.2vw, 64px);
  height: clamp(44px, 4.2vw, 64px);
  max-width: 64px;
  max-height: 64px;
  border-radius: calc(var(--radius) + 2px);
  overflow: hidden;
  flex: 0 0 auto;
  border: 1px solid var(--rule);
}

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

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

.site-rail-header nav a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0.65rem 0.75rem;
  border-left: 2px solid transparent;
  border-radius: 0 var(--radius) var(--radius) 0;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

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

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.82rem 1.15rem;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

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

.button-primary,
.header-cta {
  background: linear-gradient(135deg, var(--accent-a), var(--accent-b));
  color: #041018;
  border-color: color-mix(in srgb, var(--accent-a) 70%, transparent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent-a) 35%, transparent), 0 12px 32px color-mix(in srgb, var(--accent-b) 22%, transparent);
}

.button-primary:hover,
.header-cta:hover {
  transform: translateY(-1px);
}

.button-secondary {
  border-color: var(--rule-strong);
  color: var(--text);
  background: color-mix(in srgb, var(--surface) 70%, transparent);
}

.eyebrow,
.section-kicker {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-a);
  margin-bottom: 0.85rem;
}

.lead {
  font-size: clamp(1.02rem, 1.45vw, 1.22rem);
  max-width: 52ch;
}

.hero {
  padding: clamp(2.5rem, 5vw, 4.5rem) 0 var(--section-space);
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--rule-strong), transparent);
}

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

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

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

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

.hero-visual {
  position: relative;
  overflow: hidden;
  width: min(100%, 720px);
  aspect-ratio: 3 / 2;
  justify-self: end;
  border-radius: var(--radius-panel);
  border: 1px solid var(--rule-strong);
  background:
    radial-gradient(circle at 20% 15%, color-mix(in srgb, var(--accent-a) 16%, transparent), transparent 42%),
    linear-gradient(155deg, var(--surface), var(--surface-elevated));
  box-shadow:
    inset 0 0 0 1px color-mix(in srgb, var(--accent-a) 12%, transparent),
    0 24px 64px color-mix(in srgb, #000 55%, transparent);
}

.hero-seed {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.section {
  padding: var(--section-space) 0;
  position: relative;
}

.section + .section {
  border-top: 1px solid color-mix(in srgb, var(--rule) 80%, transparent);
}

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

.section-heading {
  max-width: 760px;
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

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

.fact-disclaimer {
  font-size: 0.78rem !important;
  padding: 0.7rem 0.85rem;
  border-left: 2px solid var(--accent-a);
  background: color-mix(in srgb, var(--accent-b) 10%, transparent);
}

/* Stats band — horizontal instrument row */
.layout-stats-band {
  padding-block: clamp(2rem, 4vw, 3rem);
  background: linear-gradient(180deg, color-mix(in srgb, var(--surface) 80%, var(--page)), transparent);
}

.layout-stats-band .stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.layout-stats-band .stat {
  padding: 1.1rem 1rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-panel);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  position: relative;
}

.layout-stats-band .stat::before {
  content: "";
  position: absolute;
  top: 0;
  left: 1rem;
  right: 1rem;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-a), var(--accent-b));
}

.layout-stats-band .stat strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.65rem;
  color: var(--accent-a);
}

.layout-stats-band .stat span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 0.35rem;
}

/* Bento services */
.layout-bento .cards-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 0.85rem;
}

.layout-bento .card {
  grid-column: span 6;
  min-width: 0;
}

.layout-bento .card:nth-child(1),
.layout-bento .card:nth-child(4) {
  grid-column: span 7;
}

.layout-bento .card:nth-child(2),
.layout-bento .card:nth-child(3) {
  grid-column: span 5;
}

.card {
  padding: clamp(1.15rem, 2vw, 1.65rem);
  border-radius: var(--radius-panel);
  border: 1px solid var(--rule);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

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

.card-icon,
.step-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 0.85rem;
  color: var(--accent-a);
  border: 1px solid color-mix(in srgb, var(--accent-a) 35%, transparent);
  border-radius: calc(var(--radius) + 2px);
  background: color-mix(in srgb, var(--accent-b) 10%, transparent);
}

.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: 0.12em;
  text-transform: uppercase;
  color: var(--accent-a);
  margin-bottom: 0.55rem;
}

.card-value {
  display: block;
  margin-top: 0.85rem;
  color: var(--text);
  font-weight: 600;
}

.card small {
  display: block;
  color: var(--muted);
  margin-top: 0.35rem;
  font-size: 0.88rem;
}

/* Timeline process */
.layout-timeline-rail .process-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  position: relative;
}

.layout-timeline-rail .process-list::before {
  content: "";
  position: absolute;
  left: 0.5rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 1px;
  background: linear-gradient(180deg, var(--accent-a), transparent 85%);
  opacity: 0.5;
}

.layout-timeline-rail .process-list li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 0.85rem;
  padding: 1.1rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-panel);
  background: color-mix(in srgb, var(--surface) 90%, transparent);
}

.layout-timeline-rail .step-icon { margin-bottom: 0; }

/* Geography columns */
.layout-geo-columns .geo-chips {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.geo-chip {
  padding: 1.15rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-panel);
  background: linear-gradient(160deg, color-mix(in srgb, var(--surface-elevated) 90%, transparent), color-mix(in srgb, var(--surface) 80%, transparent));
}

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

.geo-chip span {
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 0.45rem;
}

/* Mosaic benefits */
.layout-mosaic .cards-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.85rem;
}

.layout-mosaic .card:first-child {
  grid-column: span 2;
  grid-row: span 2;
}

/* Scenario deck */
.layout-scenario-deck .cards-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.layout-scenario-deck .card:nth-child(odd) {
  transform: translateY(0.75rem);
}

/* Guide magazine */
.layout-guide-magazine .guide-body {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem 1.25rem;
}

.layout-guide-magazine .chapter {
  padding: 1.15rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-panel);
  background: color-mix(in srgb, var(--surface) 86%, transparent);
}

.layout-guide-magazine .chapter:nth-child(1),
.layout-guide-magazine .chapter:nth-child(6) {
  grid-column: span 2;
}

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

/* Calculator + contact splits */
.calculator-grid,
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.95fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

.calculator-form,
.contact-form {
  display: grid;
  gap: 0.85rem;
  padding: 1.25rem;
  border-radius: var(--radius-panel);
  border: 1px solid var(--rule-strong);
  background: color-mix(in srgb, var(--surface-elevated) 92%, transparent);
}

.calculator-form label,
.contact-form label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

input, select, textarea {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--rule-strong);
  background: color-mix(in srgb, var(--page) 88%, transparent);
  color: var(--text);
  padding: 0.78rem 0.85rem;
  border-radius: var(--radius);
}

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

output {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--accent-a);
}

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

/* FAQ panel */
.layout-faq-panel .faq-list {
  display: grid;
  gap: 0.5rem;
}

.faq-list details {
  border: 1px solid var(--rule);
  border-radius: var(--radius-panel);
  padding: 0.85rem 1rem;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
}

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

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

.faq-list p {
  padding-right: 0.5rem;
  margin-bottom: 0;
}

/* Footer */
.site-footer {
  padding: clamp(2.5rem, 5vw, 4rem) 0;
  margin-top: var(--section-space);
  border-top: 1px solid var(--rule-strong);
  background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--surface) 70%, var(--page)));
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 1fr;
  gap: 1.5rem;
}

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

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

/* Icon motion — min 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: 0.72; } }
@keyframes iconSlide { 50% { transform: translateX(3px); } }
@keyframes iconSpin { to { transform: rotate(360deg); } }

/* Wide desktop balance */
@media (min-width: 1440px) {
  .page-content {
    padding-inline: clamp(2rem, 3vw, 3.5rem);
  }

  .blueprint-hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(380px, 0.88fr);
  }
}

@media (min-width: 2160px) {
  :root {
    --content-max: 1680px;
  }

  .layout-bento .cards-grid {
    gap: 1.1rem;
  }
}

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

  .site-rail-header {
    position: sticky;
    top: 0;
    min-height: auto;
    border-right: none;
    border-bottom: 1px solid var(--rule-strong);
  }

  .site-rail-header .header-inner {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem 1rem;
  }

  .site-rail-header nav {
    flex-direction: row;
    flex-wrap: wrap;
    order: 3;
    width: 100%;
  }

  .site-rail-header nav a {
    border-left: none;
    border: 1px solid var(--rule);
    border-radius: var(--radius);
    padding: 0.45rem 0.65rem;
  }

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

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

  .hero-visual {
    justify-self: stretch;
    width: 100%;
  }

  .layout-bento .cards-grid,
  .layout-bento .card,
  .layout-mosaic .cards-grid,
  .layout-mosaic .card:first-child {
    grid-column: auto;
    grid-row: auto;
  }

  .layout-bento .cards-grid,
  .layout-mosaic .cards-grid,
  .layout-geo-columns .geo-chips,
  .layout-timeline-rail .process-list,
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .layout-guide-magazine .guide-body,
  .layout-guide-magazine .chapter:nth-child(1),
  .layout-guide-magazine .chapter:nth-child(6) {
    grid-column: auto;
    grid-template-columns: 1fr;
  }
}

/* Mobile */
@media (max-width: 640px) {
  .page-content { padding-inline: 0.85rem; }

  h1 { max-width: none; font-size: clamp(2rem, 12vw, 2.85rem); }

  .site-rail-header nav { display: none; }

  .layout-stats-band .stats-grid,
  .layout-bento .cards-grid,
  .layout-mosaic .cards-grid,
  .layout-scenario-deck .cards-grid,
  .layout-geo-columns .geo-chips,
  .layout-timeline-rail .process-list,
  .layout-guide-magazine .guide-body,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .layout-scenario-deck .card:nth-child(odd) {
    transform: none;
  }

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

@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 { transform: none; }
}