/* Worm-GPT · vault design system */
:root {
  --bg: #0a0c0f;
  --bg-elevated: #111419;
  --bg-card: #0d1014;
  --text: #e8edf2;
  --muted: #8b96a8;
  --line: rgba(148, 163, 184, 0.14);
  --accent: #5eead4;
  --accent-dim: #0891b2;
  --accent-glow: rgba(94, 234, 212, 0.12);
  --header: 72px;
  --wrap: min(1120px, calc(100% - 2rem));
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Source Sans 3", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --radius: 12px;
  --radius-lg: 18px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--accent); text-decoration: none; transition: color 0.2s var(--ease); }
a:hover { color: #99f6e4; }

.wrap {
  width: var(--wrap);
  margin-inline: auto;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  padding: 0.75rem 1rem;
  background: var(--accent);
  color: var(--bg);
  font-weight: 600;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.vault-noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.vault-vignette {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
  background: radial-gradient(ellipse 80% 60% at 70% 20%, var(--accent-glow), transparent 55%),
    radial-gradient(ellipse 50% 40% at 10% 90%, rgba(8, 145, 178, 0.08), transparent 50%);
}

main, .site-header, .site-footer { position: relative; z-index: 1; }

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  min-height: var(--header);
  border-bottom: 1px solid transparent;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease), backdrop-filter 0.35s;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header);
}
.site-header.scrolled {
  background: rgba(10, 12, 15, 0.88);
  backdrop-filter: blur(12px);
  border-bottom-color: var(--line);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: var(--text);
}
.logo:hover { color: var(--text); }
.logo-accent { color: var(--accent); }

.menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 8px;
  padding: 0.4rem 0.65rem;
  font-size: 1.25rem;
  cursor: pointer;
}

.nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem 1.25rem;
  font-size: 0.92rem;
}
.nav a { color: var(--muted); font-weight: 500; }
.nav a:hover { color: var(--text); }
.nav-cta {
  padding: 0.45rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(94, 234, 212, 0.35);
  color: var(--accent) !important;
  background: rgba(94, 234, 212, 0.06);
}
.nav-cta:hover {
  background: rgba(94, 234, 212, 0.12);
  color: #99f6e4 !important;
}

.lang-switch { display: inline-flex; align-items: center; gap: 0.35rem; font-size: 0.8rem; }
.lang-switch-link { color: var(--muted); }
.lang-switch-link.is-active { color: var(--accent); }
.lang-switch-sep { color: var(--line); opacity: 0.6; }

@media (max-width: 860px) {
  .menu-toggle { display: block; }
  .nav {
    position: fixed;
    top: var(--header);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 1.5rem;
    background: rgba(10, 12, 15, 0.97);
    backdrop-filter: blur(16px);
    transform: translateX(100%);
    transition: transform 0.35s var(--ease);
    gap: 0.75rem;
  }
  .nav.open { transform: translateX(0); }
  .nav a { padding: 0.5rem 0; font-size: 1.05rem; }
}

/* Typography blocks */
.kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-dim);
  margin: 0 0 0.75rem;
}

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.5rem;
}

.section-head { margin-bottom: 2rem; max-width: 52ch; }
.section-head--center { text-align: center; margin-inline: auto; }
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 4vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin: 0 0 0.65rem;
}
.section-deck { margin: 0; color: var(--muted); font-size: 1.02rem; }
.text-link { border-bottom: 1px solid rgba(94, 234, 212, 0.35); }

h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.08;
  margin: 0 0 1rem;
}
h1 em { font-style: normal; color: var(--accent); }

.lead, .deck {
  font-size: 1.125rem;
  color: var(--muted);
  max-width: 48ch;
  margin: 0 0 1.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.35rem;
  border-radius: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: transform 0.2s var(--ease), box-shadow 0.2s, background 0.2s;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-dim), #0e7490);
  color: #041014;
  box-shadow: 0 4px 24px rgba(8, 145, 178, 0.25);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 32px rgba(94, 234, 212, 0.2);
  color: #041014;
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}
.btn-ghost:hover { border-color: rgba(94, 234, 212, 0.35); color: var(--accent); }

/* Hero vault */
.hero-vault {
  padding: calc(var(--header) + 2.5rem) 0 3rem;
  min-height: min(92vh, 820px);
}
.hero-asymmetric {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}
@media (max-width: 900px) {
  .hero-asymmetric { grid-template-columns: 1fr; }
  .hero-mesh-panel { order: -1; min-height: 220px; }
}

.hero-copy { padding-right: 0.5rem; }
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem 2rem;
  font-size: 0.88rem;
  color: var(--muted);
}
.hero-meta strong {
  display: block;
  font-family: var(--font-display);
  color: var(--text);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  margin-bottom: 0.12rem;
}
.hero-meta span { display: block; font-size: 0.82rem; }

.hero-mesh-panel {
  position: relative;
  min-height: 320px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(145deg, var(--bg-card) 0%, #0a1218 100%);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 92%, 88% 100%, 0 100%);
}
#vault-mesh {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.hero-terminal {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1rem 1.15rem;
  background: linear-gradient(transparent, rgba(10, 12, 15, 0.92));
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
}
.hero-terminal [data-typewriter]::after {
  content: "▋";
  animation: blink 1s step-end infinite;
  color: var(--accent);
  margin-left: 2px;
}
@keyframes blink { 50% { opacity: 0; } }

/* Confidentiality strip */
.conf-strip {
  border-block: 1px solid var(--line);
  background: rgba(17, 20, 25, 0.6);
  padding: 0.85rem 0;
}
.conf-strip .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  font-size: 0.88rem;
  color: var(--muted);
}
.conf-strip strong { color: var(--text); font-weight: 600; }
.conf-pills { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.conf-pill {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--accent-dim);
}

/* Signal cards */
.section-block { padding: 4rem 0; }
.signal-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
}
.signal-card {
  grid-column: span 6;
  padding: 1.5rem 1.65rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--bg-card);
  position: relative;
  overflow: hidden;
}
.signal-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent), var(--accent-dim));
  opacity: 0.7;
}
.signal-card:nth-child(1) { grid-column: span 7; }
.signal-card:nth-child(2) { grid-column: span 5; margin-top: 1.5rem; }
.signal-card:nth-child(3) { grid-column: span 5; margin-top: -0.5rem; }
.signal-card:nth-child(4) { grid-column: span 7; }
.signal-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}
.signal-card p { margin: 0; color: var(--muted); font-size: 0.98rem; }
.signal-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--accent-dim);
  margin-bottom: 0.75rem;
  display: block;
}
@media (max-width: 768px) {
  .signal-card,
  .signal-card:nth-child(n) {
    grid-column: span 12;
    margin-top: 0 !important;
  }
}

/* Tier rail */
.tier-rail {
  padding: 4rem 0;
  background: linear-gradient(180deg, transparent, rgba(8, 145, 178, 0.04), transparent);
}
.tier-rail-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin-top: 2rem;
}
@media (max-width: 768px) {
  .tier-rail-track { grid-template-columns: 1fr 1fr; }
}
.tier-segment {
  display: block;
  padding: 1.25rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  color: inherit;
  transition: border-color 0.25s, transform 0.25s var(--ease);
}
.tier-segment:hover {
  border-color: rgba(94, 234, 212, 0.4);
  transform: translateY(-2px);
  color: inherit;
}
.tier-segment.featured {
  border-color: rgba(94, 234, 212, 0.45);
  background: linear-gradient(160deg, rgba(94, 234, 212, 0.08), var(--bg-elevated));
}
.tier-segment h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin: 0 0 0.35rem;
}
.tier-segment .tier-price {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  color: var(--accent);
  margin: 0;
}
.tier-segment .tier-price span { font-size: 0.75rem; color: var(--muted); }

/* Compare */
.compare-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 700px) { .compare-panel { grid-template-columns: 1fr; } }
.compare-col {
  padding: 1.75rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
}
.compare-col.muted-side {
  background: rgba(17, 20, 25, 0.5);
  opacity: 0.85;
}
.compare-col.accent-side {
  background: linear-gradient(145deg, rgba(94, 234, 212, 0.06), var(--bg-card));
  border-color: rgba(94, 234, 212, 0.2);
}
.compare-col h3 {
  font-family: var(--font-display);
  margin: 0 0 1rem;
  font-size: 1.1rem;
}
.compare-col ul {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--muted);
}
.compare-col li { margin-bottom: 0.45rem; }
.geo-more {
  margin-top: 1.5rem;
  font-size: 0.95rem;
  color: var(--muted);
}

/* FAQ */
.faq-list { display: flex; flex-direction: column; gap: 0.65rem; max-width: 640px; }
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-card);
  overflow: hidden;
}
.faq-item summary {
  padding: 1rem 1.15rem;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 600;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-body {
  padding: 0 1.15rem 1rem;
  color: var(--muted);
  font-size: 0.98rem;
}

/* CTA */
.cta-vault {
  text-align: center;
  padding: 2.5rem 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: radial-gradient(ellipse at center, var(--accent-glow), transparent 70%);
}
.cta-vault h2 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  margin: 0 0 0.75rem;
}
.cta-vault p { color: var(--muted); max-width: 42ch; margin: 0 auto 1.25rem; }

/* Footer */
.site-footer {
  margin-top: 3rem;
  padding: 2.5rem 0 2rem;
  border-top: 1px solid var(--line);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2rem;
}
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-grid p { margin: 0.35rem 0; font-size: 0.92rem; color: var(--muted); }
.footer-note { font-size: 0.85rem; color: var(--muted); margin-top: 2rem; padding-top: 1rem; border-top: 1px solid var(--line); }

/* Pricing */
.page-hero {
  padding: calc(var(--header) + 2rem) 0 2rem;
  text-align: center;
}
.page-hero .lead { margin-inline: auto; text-align: center; }

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  padding-bottom: 2rem;
}
@media (max-width: 960px) { .pricing-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .pricing-grid { grid-template-columns: 1fr; } }

.price-card {
  position: relative;
  padding: 1.5rem 1.35rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
}
.price-card.featured {
  border-color: rgba(94, 234, 212, 0.45);
  box-shadow: 0 0 0 1px rgba(94, 234, 212, 0.08);
}
.price-card.is-selected { outline: 2px solid var(--accent); outline-offset: 2px; }
.price-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  background: rgba(94, 234, 212, 0.15);
  color: var(--accent);
}
.price-card h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin: 0 0 0.5rem;
}
.price-amount {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  color: var(--accent);
  margin: 0 0 1rem;
}
.price-amount span { font-size: 0.85rem; color: var(--muted); }
.price-card ul {
  flex: 1;
  margin: 0 0 1.25rem;
  padding-left: 1.1rem;
  font-size: 0.92rem;
  color: var(--muted);
}
.price-card .btn { width: 100%; }

.pricing-reviews { padding: 2rem 0 3rem; }
.pricing-reviews-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 640px) { .pricing-reviews-grid { grid-template-columns: 1fr; } }
.pricing-review {
  margin: 0;
  padding: 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  font-size: 0.95rem;
  color: var(--muted);
}
.pricing-review footer { margin-top: 0.75rem; font-size: 0.85rem; color: var(--text); }
.pricing-review-stars { color: var(--accent); letter-spacing: 0.05em; }

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(4, 6, 8, 0.75);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}
.modal-backdrop.open { opacity: 1; visibility: visible; }
.modal {
  width: min(420px, 100%);
  padding: 1.75rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
}
.modal h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin: 0 0 0.75rem;
}
.modal p { color: var(--muted); font-size: 0.95rem; margin: 0 0 1.25rem; }
.modal-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.modal-note {
  margin: 1rem 0 0 !important;
  font-family: var(--font-mono);
  font-size: 0.72rem !important;
  color: var(--accent-dim) !important;
}

/* Geo / guide pages */
.page-geo main.wrap { padding-top: calc(var(--header) + 2rem); padding-bottom: 3rem; max-width: 720px; }
.geo-hero { margin-bottom: 2.5rem; }
.geo-hero h1 { font-size: clamp(1.75rem, 4vw, 2.35rem); }
.geo-article h2 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin: 2rem 0 0.75rem;
  letter-spacing: -0.02em;
}
.geo-article p, .geo-article li { color: var(--muted); }
.geo-article ul, .geo-article ol { padding-left: 1.25rem; }

.geo-table-wrap {
  overflow-x: auto;
  margin: 1.5rem 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.geo-vs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
.geo-vs-table th, .geo-vs-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.geo-vs-table thead th {
  font-family: var(--font-display);
  background: var(--bg-elevated);
  color: var(--text);
}
.geo-vs-table tbody th { color: var(--text); font-weight: 600; width: 22%; }
.geo-vs-table td { color: var(--muted); width: 39%; }
.geo-vs-table .col-worm {
  color: var(--text);
  background: rgba(94, 234, 212, 0.04);
}
.geo-vs-table-note {
  font-size: 0.85rem;
  color: var(--muted);
  font-style: italic;
}
.geo-cta-bar {
  margin-top: 2.5rem;
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: var(--bg-card);
}
.geo-cta-bar p { margin: 0; color: var(--muted); }

/* Scroll reveals */
.reveal .reveal-child {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
  transition-delay: calc(var(--i, 0) * 0.07s);
}
.js .reveal.visible .reveal-child {
  opacity: 1;
  transform: none;
}
.reveal-fade {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.js .reveal-fade.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal .reveal-child,
  .reveal-fade {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .btn-primary:hover { transform: none; }
  .tier-segment:hover { transform: none; }
  .hero-terminal [data-typewriter]::after { animation: none; }
}