/* Codescan-inspired layout system — slon variant 1 */
:root {
  --page: #0a1218;
  --surface: #142028;
  --surface-raised: #1a2832;
  --text: #f4f8fa;
  --muted: #8fa3ad;
  --accent: #dbfffe;
  --accent-ink: #051014;
  --accent-warm: #ff7a3c;
  --line: rgba(219, 255, 254, 0.22);
  --line-strong: rgba(219, 255, 254, 0.45);
  --radius: 6px;
  --radius-panel: 12px;
  --rail-width: clamp(200px, 16vw, 248px);
  --content-max: min(1280px, 100%);
  --section-space: clamp(3.5rem, 6vw, 5.5rem);
  --font-display: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-mono: ui-monospace, "Cascadia Mono", "Segoe UI Mono", monospace;
}

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

html {
  scroll-behavior: smooth;
  overflow-x: clip;
  max-width: 100%;
}

body {
  margin: 0;
  min-width: 0;
  max-width: 100%;
  overflow-x: clip;
  line-height: 1.6;
  font-family: var(--font-body);
  background: var(--page);
  color: var(--text);
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px;
}

body,
button,
input,
select,
textarea {
  font: inherit;
}

img,
svg,
video,
canvas,
iframe {
  display: block;
  max-width: 100%;
  height: auto;
}

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

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  letter-spacing: -0.03em;
  line-height: 1.05;
}

h1 {
  font-size: clamp(2rem, 4.2vw, 3.6rem);
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(1.55rem, 2.8vw, 2.35rem);
  margin-bottom: 0.85rem;
}

h3 {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
}

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

.page-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  min-width: 0;
  max-width: 100%;
}

.side-rail {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-width: 0;
  max-width: 100%;
  padding: 0.85rem 1rem;
  background: color-mix(in srgb, var(--surface) 92%, var(--page));
  border-bottom: 1px solid var(--line);
}

.rail-brand-row,
.rail-nav-row,
.rail-cta-row {
  display: flex;
  align-items: center;
  min-width: 0;
  max-width: 100%;
}

.rail-brand-row {
  gap: 0.65rem;
}

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

.rail-cta-row {
  flex: 0 0 auto;
}

.brand {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 0.6rem;
  min-width: 0;
  max-width: 100%;
  font-weight: 700;
  font-size: 0.95rem;
}

.brand-logo {
  display: block;
  width: 48px;
  height: 48px;
  max-width: 64px;
  max-height: 64px;
  flex: 0 0 auto;
  border-radius: var(--radius);
  overflow: hidden;
}

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

.brand small {
  display: block;
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.side-rail nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  min-width: 0;
  max-width: 100%;
}

.side-rail nav a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  white-space: nowrap;
  background: color-mix(in srgb, var(--surface-raised) 80%, transparent);
}

.side-rail nav a:hover {
  border-color: var(--line-strong);
  color: var(--accent);
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.72rem 1.1rem;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
  max-width: 100%;
}

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

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

.page-main {
  min-width: 0;
  max-width: 100%;
  overflow-x: clip;
}

.content-canvas {
  width: min(var(--content-max), 100%);
  margin-inline: auto;
  padding-inline: clamp(1rem, 3vw, 2rem);
  min-width: 0;
}

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

.hero {
  padding: clamp(2rem, 5vw, 4rem) 0 var(--section-space);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: center;
  min-width: 0;
}

.hero-copy {
  min-width: 0;
  max-width: 100%;
}

.eyebrow,
.section-kicker {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent-warm);
  margin-bottom: 0.85rem;
}

.lead {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  max-width: 62ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 1.5rem 0 1rem;
  max-width: 100%;
}

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

.hero-visual {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-panel);
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--surface-raised) 88%, var(--accent) 12%), var(--surface));
  overflow: hidden;
  position: relative;
}

.section {
  padding: var(--section-space) 0;
  min-width: 0;
  max-width: 100%;
}

.section-heading {
  max-width: 72ch;
  margin-bottom: 2rem;
}

.section-heading > p {
  font-size: 1rem;
}

.fact-disclaimer {
  font-size: 0.78rem !important;
  padding: 0.65rem 0.8rem;
  border-left: 3px solid var(--accent-warm);
  background: color-mix(in srgb, var(--accent-warm) 8%, transparent);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  min-width: 0;
}

.card {
  min-width: 0;
  max-width: 100%;
  padding: 1.25rem;
  border-radius: var(--radius-panel);
  border: 1px solid var(--line);
  background: var(--surface);
}

.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);
  border: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--accent) 6%, transparent);
  border-radius: var(--radius);
}

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

.card-label {
  display: block;
  color: var(--accent-warm);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.55rem;
}

.card small {
  display: block;
  color: var(--muted);
  margin-top: 0.45rem;
  font-size: 0.82rem;
}

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

.stat {
  min-width: 0;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-top: 2px solid var(--accent);
  border-radius: var(--radius-panel);
  background: var(--surface);
}

.stat strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: var(--accent);
}

.stat span {
  font-weight: 700;
  display: block;
  margin-top: 0.25rem;
}

.stat p {
  font-size: 0.82rem;
  margin: 0.45rem 0 0;
}

.process-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.process-list li {
  min-width: 0;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.85rem;
  padding: 1.1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
}

.step-icon {
  margin-bottom: 0;
}

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

.geo-chip {
  min-width: 0;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  background: var(--surface);
}

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

.geo-chip span {
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 0.35rem;
}

.dual-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  min-width: 0;
  max-width: 100%;
}

.dual-band .section {
  padding-top: calc(var(--section-space) * 0.65);
  padding-bottom: calc(var(--section-space) * 0.65);
}

.guide-body {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

.chapter {
  min-width: 0;
  max-width: 100%;
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  background: var(--surface);
}

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

.faq-list {
  max-width: 100%;
}

.faq-list details {
  border-bottom: 1px solid var(--line);
  padding: 0.85rem 0;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 700;
}

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

.contact-grid,
.calculator-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
  align-items: start;
  min-width: 0;
}

.contact-form,
.calculator-form {
  display: grid;
  gap: 0.85rem;
  background: var(--surface);
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  min-width: 0;
}

.contact-form label,
.calculator-form label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.82rem;
  min-width: 0;
}

input,
select,
textarea {
  width: 100%;
  min-width: 0;
  max-width: 100%;
  border: 1px solid var(--line-strong);
  background: var(--page);
  color: var(--text);
  padding: 0.75rem;
  border-radius: var(--radius);
}

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

output {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent);
  font-weight: 700;
}

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

.site-footer {
  padding: 3rem 0 4rem;
  border-top: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 70%, var(--page));
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: 1.5rem;
  min-width: 0;
}

.footer-brand {
  font-size: 1.25rem;
}

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

.component-geography {
  background: color-mix(in srgb, var(--surface-raised) 90%, var(--accent-warm) 10%) !important;
}

.component-calculator .section-inner {
  background: color-mix(in srgb, var(--surface) 94%, var(--accent) 6%);
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
}

@media (min-width: 768px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .contact-grid,
  .calculator-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

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

  .dual-band {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 1rem;
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-shell {
    grid-template-columns: var(--rail-width) minmax(0, 1fr);
    align-items: start;
    max-width: min(2160px, 100%);
    margin-inline: auto;
  }

  .side-rail {
    position: sticky;
    top: 0;
    height: 100vh;
    max-height: 100vh;
    padding: 1.25rem 1rem;
    border-bottom: none;
    border-right: 1px solid var(--line);
    overflow-y: auto;
    overflow-x: hidden;
    overscroll-behavior: contain;
  }

  .rail-brand-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .rail-nav-row {
    flex: 1 1 auto;
    align-items: flex-start;
    overflow: hidden;
  }

  .side-rail nav {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }

  .side-rail nav a {
    width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .rail-cta-row {
    width: 100%;
  }

  .header-cta {
    width: 100%;
  }

  .brand-logo {
    width: 56px;
    height: 56px;
  }

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

@media (min-width: 1440px) {
  :root {
    --content-max: min(1360px, calc(100% - 2rem));
  }

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

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

  #benefits .cards-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .geo-chips {
    grid-template-columns: minmax(0, 1fr);
  }

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

@media (max-width: 560px) {
  .cards-grid,
  .process-list,
  .stats-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-actions .button,
  .header-cta {
    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;
  }

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