:root {
  --gl-bg: #120818;
  --gl-bg-alt: #1a0f24;
  --gl-surface: #241530;
  --gl-surface-raised: #2e1a3c;
  --gl-ink: #f2ebe3;
  --gl-ink-muted: #a899a8;
  --gl-ink-subtle: #7a6b7e;
  --gl-accent: #ff6b54;
  --gl-accent-alt: #8b4fd4;
  --gl-line: rgba(242, 235, 227, 0.18);
  --gl-glow: rgba(255, 107, 84, 0.35);
  --gl-radius: 6px;
  --gl-radius-lg: 10px;
  --gl-border: 1px;
  --gl-duration: 0.28s;
  --gl-duration-slow: 0.7s;
  --gl-ease: cubic-bezier(0.165, 0.84, 0.44, 1);
  --gl-font-display: "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --gl-font-body: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --gl-font-mono: ui-monospace, "Cascadia Code", "Segoe UI Mono", monospace;
  --shell-max: 1440px;
  --rail-width: 220px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

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

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

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

.site-rail {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  padding: 1.5rem 1.25rem;
  border-right: var(--gl-border) solid var(--gl-line);
  background: linear-gradient(180deg, var(--gl-bg-alt) 0%, var(--gl-bg) 100%);
  z-index: 40;
}

.site-header {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  height: 100%;
}

.header-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  flex: 1;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--gl-font-display);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.82rem;
}

.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-alt) 0%, var(--gl-accent) 100%);
  box-shadow: 0 0 0 1px var(--gl-line), 0 8px 24px var(--gl-glow);
  position: relative;
}

.brand-logo::after {
  content: "";
  position: absolute;
  inset: 12px;
  border: 2px solid rgba(242, 235, 227, 0.85);
  border-radius: 2px;
}

.brand small {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--gl-ink-muted);
  text-transform: none;
  font-weight: 400;
}

.site-header nav {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.site-header nav a {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gl-ink-muted);
  transition: color var(--gl-duration) var(--gl-ease);
}

.site-header nav a:hover {
  color: var(--gl-accent);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1rem;
  border: var(--gl-border) solid var(--gl-line);
  border-radius: 999px;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition: border-color var(--gl-duration) var(--gl-ease), color var(--gl-duration) var(--gl-ease);
}

.header-cta:hover {
  border-color: var(--gl-accent);
  color: var(--gl-accent);
}

.page-canvas {
  position: relative;
  min-width: 0;
}

.frame-border {
  pointer-events: none;
  position: absolute;
  inset: 1rem 1rem 1rem 0.5rem;
  border: var(--gl-border) solid var(--gl-line);
  border-radius: var(--gl-radius-lg);
  z-index: 1;
}

main {
  position: relative;
  z-index: 2;
  padding: 0 1.5rem 3rem 1rem;
}

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

.section {
  padding: 4.5rem 0;
  border-bottom: var(--gl-border) solid var(--gl-line);
}

.section-heading {
  margin-bottom: 2rem;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--gl-font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gl-ink-muted);
  margin-bottom: 0.85rem;
}

.section-kicker::before {
  content: "";
  width: 1.25rem;
  height: 1px;
  background: var(--gl-line);
}

h1,
h2,
h3 {
  font-family: var(--gl-font-display);
  letter-spacing: -0.02em;
  line-height: 1.08;
}

h1 {
  font-size: clamp(1.85rem, 3.8vw, 3.1rem);
  max-width: 16ch;
}

h2 {
  font-size: clamp(1.45rem, 2.6vw, 2.35rem);
  max-width: 22ch;
}

h3 {
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
}

.lead,
.section-heading p,
.section p {
  color: var(--gl-ink-muted);
}

.lead {
  max-width: 52ch;
  margin-top: 1rem;
}

.eyebrow {
  font-family: var(--gl-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gl-accent-alt);
  margin-bottom: 0.75rem;
}

.hero {
  padding: 2.5rem 0 4rem;
  border-bottom: var(--gl-border) solid var(--gl-line);
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.5rem;
  align-items: end;
}

.hero-copy {
  grid-column: 1 / span 7;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.hero-visual {
  grid-column: 8 / span 5;
  align-self: stretch;
  min-height: 280px;
  max-height: 55vh;
  max-width: 100%;
  border-radius: var(--gl-radius-lg);
  border: var(--gl-border) solid var(--gl-line);
  background:
    radial-gradient(circle at 30% 20%, rgba(139, 79, 212, 0.22), transparent 55%),
    radial-gradient(circle at 70% 80%, rgba(255, 107, 84, 0.18), transparent 50%),
    var(--gl-surface);
  overflow: hidden;
  position: relative;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  border: var(--gl-border) solid var(--gl-line);
  transition: border-color var(--gl-duration) var(--gl-ease), background var(--gl-duration) var(--gl-ease);
}

.button-primary {
  background: var(--gl-accent);
  border-color: var(--gl-accent);
  color: #1a0810;
  font-weight: 600;
}

.button-primary:hover {
  background: #ff826e;
  border-color: #ff826e;
}

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

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

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

.asymmetric-grid .card:nth-child(1) {
  grid-column: 1 / span 7;
  grid-row: span 2;
}

.asymmetric-grid .card:nth-child(2) {
  grid-column: 8 / span 5;
}

.asymmetric-grid .card:nth-child(3) {
  grid-column: 8 / span 5;
}

.asymmetric-grid .card:nth-child(4) {
  grid-column: 1 / span 5;
}

.asymmetric-grid .card:nth-child(5) {
  grid-column: 6 / span 7;
}

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

.component-benefits .cards-grid .card:nth-child(1) {
  grid-column: 1 / span 6;
}

.component-benefits .cards-grid .card:nth-child(2) {
  grid-column: 7 / span 6;
}

.component-benefits .cards-grid .card:nth-child(3) {
  grid-column: 2 / span 5;
}

.component-benefits .cards-grid .card:nth-child(4) {
  grid-column: 7 / span 6;
}

.card {
  background: var(--gl-surface);
  border: var(--gl-border) solid var(--gl-line);
  border-radius: var(--gl-radius-lg);
  padding: 1.25rem 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  transition: border-color var(--gl-duration) var(--gl-ease), transform var(--gl-duration) var(--gl-ease);
}

.card:hover {
  border-color: rgba(255, 107, 84, 0.45);
  transform: translateY(-2px);
}

.card-icon {
  width: 2rem;
  height: 2rem;
  border-radius: var(--gl-radius);
  background: var(--gl-surface-raised);
  border: var(--gl-border) solid var(--gl-line);
  position: relative;
}

.card-icon::before {
  content: "";
  position: absolute;
  inset: 7px;
  border-radius: 2px;
  background: linear-gradient(135deg, var(--gl-accent-alt), var(--gl-accent));
  opacity: 0.85;
}

.card-label {
  font-family: var(--gl-font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gl-accent);
}

.card small {
  font-family: var(--gl-font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gl-ink-subtle);
  margin-top: auto;
}

.guide-body {
  display: grid;
  gap: 2rem;
}

.chapter {
  padding: 1.5rem;
  background: var(--gl-surface);
  border: var(--gl-border) solid var(--gl-line);
  border-radius: var(--gl-radius-lg);
}

.chapter h3 {
  margin-bottom: 0.75rem;
  color: var(--gl-ink);
}

.chapter p {
  margin-bottom: 1rem;
}

.chapter ul {
  padding-left: 1.2rem;
  display: grid;
  gap: 0.45rem;
}

.chapter li {
  color: var(--gl-ink-muted);
}

.calculator-grid,
.contact-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 2rem;
  align-items: start;
}

.calculator-grid > div:first-child,
.contact-grid > div:first-child {
  grid-column: 1 / span 5;
}

.calculator-form,
.contact-form {
  grid-column: 6 / span 7;
  display: grid;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--gl-surface);
  border: var(--gl-border) solid var(--gl-line);
  border-radius: var(--gl-radius-lg);
}

label {
  display: grid;
  gap: 0.4rem;
}

label span {
  font-family: var(--gl-font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gl-ink-muted);
}

input,
select,
textarea,
output {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border-radius: var(--gl-radius);
  border: var(--gl-border) solid var(--gl-line);
  background: var(--gl-bg-alt);
  color: var(--gl-ink);
  font: inherit;
}

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

.fact-disclaimer {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: var(--gl-ink-subtle);
}

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

.geo-chip {
  padding: 1.25rem;
  background: var(--gl-surface);
  border: var(--gl-border) solid var(--gl-line);
  border-radius: var(--gl-radius-lg);
  display: grid;
  gap: 0.5rem;
}

.geo-chip strong {
  font-family: var(--gl-font-display);
  font-size: 1rem;
}

.geo-chip span {
  color: var(--gl-ink-muted);
  font-size: 0.92rem;
}

.form-message {
  color: var(--gl-accent-alt);
  font-size: 0.9rem;
}

.site-footer {
  padding: 3rem 0 1rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.footer-brand {
  font-family: var(--gl-font-display);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.site-footer h3 {
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gl-ink-muted);
  margin-bottom: 0.75rem;
}

.site-footer a {
  display: block;
  padding: 0.2rem 0;
  color: var(--gl-ink-muted);
  font-size: 0.9rem;
}

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

.site-footer p {
  color: var(--gl-ink-muted);
  font-size: 0.9rem;
}

@media (max-width: 1200px) {
  .page-shell {
    grid-template-columns: 180px minmax(0, 1fr);
  }

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

@media (max-width: 960px) {
  .page-shell {
    grid-template-columns: 1fr;
  }

  .site-rail {
    position: relative;
    height: auto;
    border-right: none;
    border-bottom: var(--gl-border) solid var(--gl-line);
  }

  .header-inner {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }

  .site-header nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .frame-border {
    display: none;
  }

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

  .hero-copy,
  .hero-visual {
    grid-column: 1;
  }

  .hero-visual {
    min-height: 220px;
    max-height: 38vh;
  }

  .asymmetric-grid,
  .cards-grid,
  .component-benefits .cards-grid {
    grid-template-columns: 1fr;
  }

  .asymmetric-grid .card,
  .cards-grid .card,
  .component-benefits .cards-grid .card {
    grid-column: 1 !important;
    grid-row: auto !important;
  }

  .calculator-grid > div:first-child,
  .contact-grid > div:first-child,
  .calculator-form,
  .contact-form {
    grid-column: 1;
  }

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

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

@media (max-width: 640px) {
  main {
    padding: 0 1rem 2rem;
  }

  .section {
    padding: 3rem 0;
  }
}

@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;
  }
}