/* ==========================================================================
   CYBROXA — Design System
   Blueprint-infrastructure aesthetic: near-black surfaces, restrained blue/
   cyan accent, mono "console" labels for structural annotation, editorial
   asymmetric layout instead of repeating card grids.
   ========================================================================== */

:root {
  /* Surfaces */
  --bg: #0a0e14;
  --bg-alt: #0d1219;
  --surface: #121822;
  --surface-2: #182030;
  --border: #232c3a;
  --border-soft: #1a2129;

  /* Text */
  --text: #edf1f6;
  --text-dim: #9aa5b4;
  --text-faint: #5d6774;

  /* Accent */
  --accent: #4c86ff;
  --accent-bright: #6fa1ff;
  --accent-cyan: #45d6d6;
  --accent-soft: rgba(76, 134, 255, 0.12);
  --accent-line: rgba(76, 134, 255, 0.28);
  --purple: #8b7cf6;

  /* Type */
  --font-display: "Manrope", "Inter", sans-serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", monospace;

  /* Layout */
  --maxw: 1240px;
  --radius: 10px;
  --radius-sm: 6px;
  --nav-h: 76px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--text);
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 32px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-cyan);
}
.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-faint);
  letter-spacing: 0.08em;
}

/* Focus states */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14.5px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #06070a;
}
.btn-primary:hover { background: var(--accent-bright); transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--accent-line); background: var(--accent-soft); }
.btn-sm { padding: 9px 16px; font-size: 13.5px; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 14.5px;
  color: var(--accent-bright);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, gap 0.2s ease;
}
.link-arrow:hover { border-color: var(--accent-line); gap: 9px; }
.link-arrow svg { width: 15px; height: 15px; flex-shrink: 0; }

/* ==========================================================================
   Interactive background canvas
   ========================================================================== */
.infra-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.55;
}

/* ==========================================================================
   Nav
   ========================================================================== */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: rgba(10, 14, 20, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-soft);
}
.site-nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.nav-logo { display: flex; align-items: center; gap: 10px; }
.nav-logo img { height: 26px; width: auto; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
}
.nav-links a {
  font-size: 14.5px;
  color: var(--text-dim);
  font-weight: 500;
  transition: color 0.2s ease;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.nav-actions .btn svg { width: 14px; height: 14px; }
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  color: var(--text);
}
.mobile-menu {
  display: none;
  position: fixed;
  inset: var(--nav-h) 0 0 0;
  background: var(--bg);
  z-index: 99;
  padding: 28px 32px;
  overflow-y: auto;
}
.mobile-menu.open { display: block; }
.mobile-menu a {
  display: block;
  padding: 16px 0;
  font-size: 20px;
  font-family: var(--font-display);
  font-weight: 600;
  border-bottom: 1px solid var(--border-soft);
}
.mobile-menu .mobile-actions { display: flex; flex-direction: column; gap: 12px; margin-top: 24px; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-actions .btn-ghost { display: none; }
  .nav-toggle { display: flex; }
}

/* ==========================================================================
   Blueprint frame — signature structural device used around key panels
   ========================================================================== */
.blueprint {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg-alt) 100%);
}
.blueprint::before, .blueprint::after,
.blueprint .bp-corner-tl, .blueprint .bp-corner-br {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  pointer-events: none;
}
.blueprint::before {
  top: -1px; left: -1px;
  border-top: 2px solid var(--accent-cyan);
  border-left: 2px solid var(--accent-cyan);
}
.blueprint::after {
  bottom: -1px; right: -1px;
  border-bottom: 2px solid var(--accent-cyan);
  border-right: 2px solid var(--accent-cyan);
}
.bp-label {
  position: absolute;
  top: 14px;
  left: 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  text-transform: uppercase;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  padding: 76px 0 90px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.hero h1 {
  font-size: clamp(38px, 4.6vw, 60px);
  line-height: 1.06;
  margin: 18px 0 22px;
}
.hero p.lead {
  font-size: 17.5px;
  color: var(--text-dim);
  max-width: 520px;
  margin: 0 0 32px;
}
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-visual { position: relative; }
.hero-visual .blueprint { padding: 22px; min-height: 380px; }

@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .hero-visual .blueprint { min-height: 260px; }
}

/* ==========================================================================
   Sections
   ========================================================================== */
section { position: relative; z-index: 1; padding: 92px 0; }
section.tight { padding: 64px 0; }
.section-head {
  max-width: 640px;
  margin-bottom: 48px;
}
.section-head h2 {
  font-size: clamp(28px, 3.2vw, 40px);
  margin-top: 14px;
  line-height: 1.12;
}
.section-head p { color: var(--text-dim); font-size: 16.5px; margin-top: 14px; }

/* Trust strip */
.trust-strip {
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
  padding: 26px 0;
}
.trust-strip ul {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 40px;
  justify-content: space-between;
}
.trust-strip li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-dim);
  letter-spacing: 0.03em;
}
.trust-strip li svg { width: 15px; height: 15px; color: var(--accent-cyan); flex-shrink: 0; }

/* Asymmetric infrastructure section */
.infra-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 60px;
  align-items: start;
}
.infra-pillars { display: flex; flex-direction: column; gap: 0; }
.pillar {
  padding: 26px 0;
  border-top: 1px solid var(--border-soft);
}
.pillar:last-child { border-bottom: 1px solid var(--border-soft); }
.pillar-num { font-family: var(--font-mono); font-size: 12px; color: var(--accent-cyan); }
.pillar h3 { font-size: 19px; margin: 10px 0 8px; }
.pillar p { color: var(--text-dim); font-size: 15px; margin: 0; }

@media (max-width: 980px) {
  .infra-layout { grid-template-columns: 1fr; gap: 36px; }
}

/* Services */
.services-list { display: flex; flex-direction: column; gap: 1px; background: var(--border-soft); border: 1px solid var(--border-soft); border-radius: var(--radius); overflow: hidden; }
.service-row {
  display: grid;
  grid-template-columns: 220px 1fr auto;
  gap: 28px;
  align-items: center;
  background: var(--bg-alt);
  padding: 30px 32px;
  transition: background 0.2s ease;
}
.service-row:hover { background: var(--surface); }
.service-row .svc-name { display: flex; align-items: center; gap: 14px; }
.service-row .svc-icon { width: 38px; height: 38px; flex-shrink: 0; color: var(--accent); }
.service-row h3 { font-size: 19px; }
.service-row p { color: var(--text-dim); font-size: 14.5px; margin: 6px 0 0; max-width: 480px; }

@media (max-width: 820px) {
  .service-row { grid-template-columns: 1fr; text-align: left; gap: 14px; }
}

/* Architecture diagram */
.arch-diagram {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 420px;
  margin: 0 auto;
}
.arch-node {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--text);
  text-align: center;
  position: relative;
}
.arch-node .arch-sub { display: block; color: var(--text-faint); font-size: 11.5px; margin-top: 3px; }
.arch-connector { height: 34px; width: 1px; background: linear-gradient(var(--accent-line), var(--border)); margin: 0 auto; position: relative; }
.arch-connector::after {
  content: "";
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 6px; height: 6px;
  background: var(--accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--accent-cyan);
}

/* Why grid — varied composition, not identical cards */
.why-layout {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}
.why-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  background: var(--surface);
}
.why-item h3 { font-size: 17px; margin-bottom: 8px; }
.why-item p { color: var(--text-dim); font-size: 14px; margin: 0; }
.why-item.span-3 { grid-column: span 3; }
.why-item.span-2 { grid-column: span 2; }
.why-item.span-4 { grid-column: span 4; }
.why-item.accent { border-color: var(--accent-line); background: linear-gradient(160deg, var(--accent-soft), transparent 70%); }

@media (max-width: 900px) {
  .why-layout { grid-template-columns: 1fr; }
  .why-item.span-3, .why-item.span-2, .why-item.span-4 { grid-column: span 1; }
}

/* About / story */
.story-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.story-layout p { color: var(--text-dim); margin: 0 0 16px; font-size: 16px; }
@media (max-width: 900px) { .story-layout { grid-template-columns: 1fr; gap: 30px; } }

/* Connect / trust & community */
.connect-layout { display: grid; grid-template-columns: 1.3fr 1fr; gap: 20px; }
.connect-list { display: flex; flex-direction: column; gap: 14px; }
.connect-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: border-color 0.2s ease, transform 0.15s ease;
  background: var(--surface);
}
.connect-card:hover { border-color: var(--accent-line); transform: translateX(3px); }
.connect-card .cc-left { display: flex; align-items: center; gap: 14px; }
.connect-card svg { width: 22px; height: 22px; color: var(--accent-cyan); flex-shrink: 0; }
.connect-card .cc-title { font-weight: 600; font-size: 15.5px; }
.connect-card .cc-sub { color: var(--text-faint); font-size: 13px; margin-top: 2px; }
.trustpilot-feature {
  border: 1px solid var(--accent-line);
  border-radius: var(--radius);
  padding: 34px;
  background: linear-gradient(160deg, var(--accent-soft), transparent 75%);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.trustpilot-feature svg.tp-mark { width: 30px; height: 30px; color: var(--accent-cyan); margin-bottom: 18px; }
.trustpilot-feature h3 { font-size: 21px; margin-bottom: 10px; }
.trustpilot-feature p { color: var(--text-dim); font-size: 15px; margin: 0 0 22px; }

@media (max-width: 900px) { .connect-layout { grid-template-columns: 1fr; } }

/* CTA band */
.cta-band {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 60px;
  text-align: center;
  background: radial-gradient(120% 140% at 50% 0%, var(--accent-soft), transparent 60%), var(--surface);
}
.cta-band h2 { font-size: clamp(26px, 3vw, 36px); margin-bottom: 14px; }
.cta-band p { color: var(--text-dim); margin-bottom: 30px; }
.cta-band .hero-ctas { justify-content: center; }

/* Footer */
footer.site-footer {
  border-top: 1px solid var(--border-soft);
  padding: 64px 0 32px;
  position: relative;
  z-index: 1;
  background: var(--bg-alt);
}
.footer-top { display: grid; grid-template-columns: 1.4fr repeat(5, 1fr); gap: 32px; margin-bottom: 48px; }
.footer-brand img { height: 24px; margin-bottom: 14px; }
.footer-brand p { color: var(--text-faint); font-size: 13.5px; max-width: 220px; }
.footer-col h4 { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-faint); margin-bottom: 16px; font-weight: 500; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { color: var(--text-dim); font-size: 14px; transition: color 0.2s ease; }
.footer-col a:hover { color: var(--text); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--border-soft);
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { color: var(--text-faint); font-size: 13px; margin: 0; }

@media (max-width: 900px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer-top { grid-template-columns: 1fr; }
}

/* Utility page hero (services / about / legal) */
.page-hero { padding: 56px 0 60px; border-bottom: 1px solid var(--border-soft); }
.page-hero .eyebrow { margin-bottom: 16px; }
.page-hero h1 { font-size: clamp(32px, 4vw, 48px); line-height: 1.1; }
.page-hero p.lead { color: var(--text-dim); font-size: 17px; max-width: 620px; margin-top: 16px; }
.breadcrumb { font-family: var(--font-mono); font-size: 12px; color: var(--text-faint); margin-bottom: 20px; }
.breadcrumb a { color: var(--text-dim); }
.breadcrumb a:hover { color: var(--accent-bright); }

/* Use-case / benefit list */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.check-list { display: flex; flex-direction: column; gap: 16px; margin-top: 20px; }
.check-list li { display: flex; gap: 12px; align-items: flex-start; color: var(--text-dim); font-size: 15.5px; list-style: none; }
.check-list svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 2px; color: var(--accent-cyan); }
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; gap: 32px; } }

/* FAQ */
.faq-item { border-bottom: 1px solid var(--border-soft); padding: 22px 0; }
.faq-item summary { cursor: pointer; font-weight: 600; font-size: 16px; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .faq-icon { width: 18px; height: 18px; flex-shrink: 0; color: var(--accent-cyan); transition: transform 0.2s ease; }
.faq-item[open] summary .faq-icon { transform: rotate(45deg); }
.faq-item p { color: var(--text-dim); margin: 14px 0 0; font-size: 15px; }

/* Forms */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-field { display: flex; flex-direction: column; gap: 8px; }
.form-field.full { grid-column: span 2; }
.form-field label { font-size: 13.5px; font-weight: 600; color: var(--text-dim); }
.form-field input, .form-field select, .form-field textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14.5px;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { border-color: var(--accent-line); }
.form-field .field-error { color: #ff7a7a; font-size: 12.5px; display: none; }
.form-field.invalid input, .form-field.invalid textarea, .form-field.invalid select { border-color: #ff7a7a; }
.form-field.invalid .field-error { display: block; }
.form-note { font-size: 12.5px; color: var(--text-faint); margin-top: 6px; }
.form-status { margin-top: 18px; font-size: 14.5px; padding: 14px 16px; border-radius: var(--radius-sm); display: none; }
.form-status.show { display: block; }
.form-status.success { background: rgba(69, 214, 214, 0.1); border: 1px solid var(--accent-line); color: var(--accent-cyan); }
.form-status.error { background: rgba(255, 122, 122, 0.08); border: 1px solid rgba(255, 122, 122, 0.3); color: #ff9a9a; }
@media (max-width: 700px) { .form-grid { grid-template-columns: 1fr; } .form-field.full { grid-column: span 1; } }

/* Legal pages */
.legal-body h2 { font-size: 21px; margin: 40px 0 12px; }
.legal-body h2:first-child { margin-top: 0; }
.legal-body p, .legal-body li { color: var(--text-dim); font-size: 15.5px; line-height: 1.75; }
.legal-body ul { list-style: disc; padding-left: 22px; margin: 12px 0; }
.legal-body ul li { margin-bottom: 6px; }
.legal-meta { font-family: var(--font-mono); font-size: 12.5px; color: var(--text-faint); margin-bottom: 8px; }

/* 404 */
.error-page { min-height: 70vh; display: flex; align-items: center; justify-content: center; text-align: center; padding: 60px 0; }
.error-page .code { font-family: var(--font-mono); color: var(--accent-cyan); font-size: 14px; letter-spacing: 0.1em; margin-bottom: 18px; }
.error-page h1 { font-size: clamp(30px, 4vw, 44px); margin-bottom: 16px; }
.error-page p { color: var(--text-dim); max-width: 440px; margin: 0 auto 30px; }

/* Skip link */
.skip-link {
  position: absolute;
  top: -50px;
  left: 12px;
  background: var(--accent);
  color: #06070a;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  z-index: 200;
  transition: top 0.2s ease;
}
.skip-link:focus { top: 12px; }

@media (max-width: 700px) {
  .wrap { padding: 0 20px; }
  section { padding: 64px 0; }
  .cta-band { padding: 40px 24px; }
  .footer-top { gap: 28px; }
}