/* ==========================================================================
   Cybrex — static site stylesheet
   Palette: navy #0D1B2A / amber #FFB703 / platinum grey #B0B8C1
   Enterprise B2B tone. Font: Inter
   ========================================================================== */

:root {
  --navy: #0D1B2A;
  --navy-deep: #060E18;
  --card-navy: #14263B;
  --white: #FFFFFF;
  --amber: #FFB703;
  --amber-deep: #CC9200;
  --amber-bg: #1A0F00;
  --red: #FF3B30;
  --grey: #B0B8C1;
  --grey-muted: #7A8490;
  --border: rgba(176, 184, 193, 0.15);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--navy);
  color: var(--grey);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  color: var(--white);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.1rem, 4.5vw, 3.1rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.2rem); }
h3 { font-size: 1.2rem; }
h4 { font-size: 0.95rem; text-transform: uppercase; letter-spacing: 1px; }

p { margin: 0 0 1em; }
a { color: var(--amber); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--white); }
ul { margin: 0; padding: 0; list-style: none; }

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--amber); color: var(--navy-deep);
  padding: 0.75rem 1.25rem; z-index: 200; font-weight: 600;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.section-inner { max-width: var(--container); margin: 0 auto; padding: 5rem 1.5rem; }
.section-inner.narrow { max-width: 760px; }

.section-lead { max-width: 640px; margin: 0 auto 2.5rem; text-align: center; }
.section-lead h2 { margin-bottom: 0.5rem; }
.section-lead p { color: var(--grey-muted); margin: 0; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(6, 14, 24, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: var(--container); margin: 0 auto; padding: 1.1rem 1.5rem;
  display: flex; align-items: center; justify-content: space-between;
}
.logo { font-size: 1.15rem; font-weight: 800; color: var(--white); letter-spacing: -0.3px; }
.logo .logo-mark { color: var(--amber); font-weight: 600; }
.logo .logo-x { color: var(--red); font-weight: 800; }

.main-nav ul { display: flex; align-items: center; gap: 2rem; }
.main-nav a { color: var(--grey); font-size: 0.92rem; font-weight: 500; }
.main-nav a:hover { color: var(--white); }

.nav-cta {
  background: var(--amber); color: var(--navy-deep) !important;
  padding: 0.55rem 1.2rem; border-radius: 6px; font-weight: 600;
}
.nav-cta:hover { background: var(--white); }

.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 0.5rem;
}
.nav-toggle span { width: 24px; height: 2px; background: var(--white); transition: all 0.25s ease; }

/* ---------- Hero ---------- */
.hero {
  padding: 7rem 1.5rem 5rem;
  background:
    radial-gradient(ellipse 60% 50% at 80% 0%, rgba(255, 183, 3, 0.12), transparent),
    var(--navy);
  text-align: center;
}
.hero-inner { max-width: 760px; margin: 0 auto; }
.eyebrow {
  color: var(--amber); text-transform: uppercase; letter-spacing: 2px;
  font-size: 0.8rem; font-weight: 600; margin-bottom: 1rem;
}
.hero-sub { font-size: 1.1rem; max-width: 600px; margin: 0 auto 2rem; }
.hero-actions { display: flex; flex-direction: column; align-items: center; gap: 0.6rem; }
.hero-note { font-size: 0.85rem; color: var(--grey-muted); }

.btn {
  display: inline-block; padding: 0.9rem 2rem; border-radius: 6px;
  font-weight: 700; font-size: 1rem; transition: all 0.2s ease;
  border: none; cursor: pointer;
}
.btn-primary { background: var(--amber); color: var(--navy-deep) !important; }
.btn-primary:hover { background: var(--white); transform: translateY(-1px); }
.btn-ghost { border: 1px solid var(--border); color: var(--white) !important; background: none; }
.btn-ghost:hover { border-color: var(--amber); color: var(--amber) !important; }

/* ---------- Problem ---------- */
.problem { background: var(--navy-deep); }
.problem-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; align-items: start;
}
.problem-grid h3 { color: var(--amber); font-size: 1rem; margin-bottom: 0.75rem; }
.problem-grid p { font-size: 0.95rem; }

/* ---------- Capabilities ---------- */
.capability-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.capability-card {
  background: var(--card-navy); border: 1px solid var(--border);
  border-radius: 10px; padding: 2rem;
}
.capability-tag {
  display: inline-block; font-size: 0.72rem; font-weight: 700;
  letter-spacing: 1.5px; text-transform: uppercase; color: var(--amber);
  margin-bottom: 0.75rem;
}
.capability-card h3 { font-size: 1.05rem; margin-bottom: 0.5rem; }
.capability-card p { font-size: 0.9rem; margin: 0; }

/* ---------- Deployment & Licensing ---------- */
.deployment { background: var(--navy-deep); }
.deployment-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.deployment-card {
  background: var(--card-navy); border: 1px solid var(--border);
  border-radius: 10px; padding: 2.5rem;
}
.deployment-card h3 { color: var(--amber); font-size: 1.05rem; }
.deployment-list { margin: 1.25rem 0 0; }
.deployment-list li {
  padding-left: 1.2rem; position: relative; margin-bottom: 0.6rem; font-size: 0.92rem;
}
.deployment-list li::before {
  content: ''; position: absolute; left: 0; top: 0.55em;
  width: 6px; height: 6px; border-radius: 50%; background: var(--amber);
}

/* ---------- Industries ---------- */
.industries { text-align: center; }
.industry-grid {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem; margin-top: 2rem;
}
.industry-pill {
  padding: 0.6rem 1.2rem; border-radius: 999px; border: 1px solid var(--border);
  background: var(--card-navy); font-size: 0.88rem; color: var(--grey);
}
.adopters-note {
  margin-top: 2.5rem; font-size: 0.9rem; color: var(--grey-muted); max-width: 620px; margin-left: auto; margin-right: auto;
}

/* ---------- Demo request ---------- */
.demo-request { background: var(--navy-deep); }
.demo-form {
  max-width: 520px; margin: 2rem auto 0;
  display: flex; flex-direction: column; gap: 1.25rem; text-align: left;
}
.form-row { display: flex; flex-direction: column; gap: 0.4rem; }
.form-row label { font-size: 0.85rem; font-weight: 600; color: var(--white); }
.form-row input, .form-row textarea {
  font-family: var(--font); font-size: 0.95rem; color: var(--white);
  background: var(--card-navy); border: 1px solid var(--border);
  border-radius: 6px; padding: 0.75rem 1rem; resize: vertical;
  transition: border-color 0.2s ease;
}
.form-row input:focus, .form-row textarea:focus { outline: none; border-color: var(--amber); }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.demo-form .btn { align-self: center; }

.form-alert {
  margin-top: 1.5rem; padding: 0.9rem 1.2rem; border-radius: 6px;
  font-size: 0.9rem; text-align: left; max-width: 520px; margin-left: auto; margin-right: auto;
}
.form-alert-success { background: rgba(255, 183, 3, 0.12); border: 1px solid rgba(255, 183, 3, 0.35); color: var(--amber); }
.form-alert-error { background: rgba(255, 87, 87, 0.1); border: 1px solid rgba(255, 87, 87, 0.35); color: #FF6B6B; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); }
.footer-inner {
  max-width: var(--container); margin: 0 auto; padding: 3rem 1.5rem;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1.5rem;
}
.footer-brand p { font-size: 0.82rem; color: var(--grey-muted); margin: 0.5rem 0 0; }
.footer-nav { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer-nav a { font-size: 0.85rem; color: var(--grey); }
.footer-nav a:hover { color: var(--white); }
.footer-disclaimer {
  max-width: var(--container); margin: 0 auto; padding: 0 1.5rem 2rem;
  font-size: 0.78rem; color: var(--grey-muted);
}

/* ---------- Legal pages ---------- */
.legal-hero { padding: 8rem 1.5rem 3rem; background: var(--navy-deep); border-bottom: 1px solid var(--border); }
.legal-hero .section-inner { padding: 0; }
.legal-updated { color: var(--grey-muted); font-size: 0.85rem; margin: 0; }

.legal-layout {
  max-width: var(--container); margin: 0 auto; padding: 4rem 1.5rem;
  display: grid; grid-template-columns: 220px 1fr; gap: 3rem; align-items: start;
}
.legal-toc { position: sticky; top: 6rem; font-size: 0.82rem; }
.legal-toc a { display: block; padding: 0.4rem 0; color: var(--grey-muted); border-left: 2px solid transparent; padding-left: 0.75rem; }
.legal-toc a:hover { color: var(--white); border-left-color: var(--amber); }

.legal-content { max-width: 760px; }
.legal-content h2 { font-size: 1.3rem; margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }
.legal-content h2:first-of-type { margin-top: 0; padding-top: 0; border-top: none; }
.legal-content h3 { font-size: 1rem; margin-top: 1.25rem; }
.legal-content p, .legal-content li { font-size: 0.93rem; }
.legal-content ul { margin: 1em 0; }
.legal-content ul li { padding-left: 1.2rem; position: relative; margin-bottom: 0.5rem; }
.legal-content ul li::before {
  content: ''; position: absolute; left: 0; top: 0.6em;
  width: 5px; height: 5px; border-radius: 50%; background: var(--amber);
}
.legal-content a { text-decoration: underline; }
.legal-content strong { color: var(--white); }

.legal-disclaimer {
  margin-top: 3rem; padding: 1.5rem; border: 1px solid var(--border); border-radius: 8px;
  background: var(--card-navy); font-size: 0.85rem; color: var(--grey-muted);
}
.legal-disclaimer p:last-child { margin-bottom: 0; }
.placeholder-flag { color: var(--amber); font-weight: 600; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .problem-grid, .deployment-grid { grid-template-columns: 1fr; }
  .capability-grid { grid-template-columns: 1fr 1fr; }
  .legal-layout { grid-template-columns: 1fr; }
  .legal-toc { position: static; display: flex; flex-wrap: wrap; gap: 0 1rem; }
}
@media (max-width: 720px) {
  .main-nav {
    position: fixed; top: 64px; left: 0; right: 0;
    background: var(--navy-deep); border-bottom: 1px solid var(--border);
    transform: translateY(-150%); opacity: 0; transition: all 0.25s ease; pointer-events: none;
  }
  .main-nav.open { transform: translateY(0); opacity: 1; pointer-events: all; }
  .main-nav ul { flex-direction: column; align-items: flex-start; padding: 1.5rem; gap: 1.25rem; }
  .nav-toggle { display: flex; }
  .capability-grid { grid-template-columns: 1fr; }
}