/* ============================================
   SEZ Tech — Design tokens
   ============================================ */
:root {
  --ink: #12172B;
  --ink-soft: #1C2340;
  --paper: #F4F6F5;
  --paper-dim: #E7EBEA;
  --amber: #3AA0FF;      /* primary accent — sampled from logo's mid-blue glow */
  --amber-soft: #8FD6FF; /* hover state — sampled from logo's light cyan highlight */
  --teal: #135BDB;       /* secondary accent — sampled from logo's deep blue */
  --slate: #5B6478;
  --slate-light: #8790A3;
  --line: rgba(18, 23, 43, 0.12);
  --line-on-dark: rgba(244, 246, 245, 0.14);

  --font-display: 'Space Grotesk', -apple-system, 'Segoe UI', Roboto, system-ui, sans-serif;
  --font-body: 'Inter', -apple-system, 'Segoe UI', Roboto, system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Menlo, Consolas, monospace;

  --max-w: 1180px;
}

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

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

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

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.eyebrow::before {
  content: '';
  width: 16px;
  height: 1px;
  background: var(--amber);
  display: inline-block;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.12;
  margin: 0;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.4rem, 5vw, 4.2rem); }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.6rem); }
h3 { font-size: 1.25rem; }

p { color: var(--slate); margin: 0; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 14px 26px;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background: var(--amber);
  color: #0A0D1A;
}
.btn-primary:hover { background: var(--amber-soft); transform: translateY(-1px); }

.btn-ghost {
  border-color: var(--line-on-dark);
  color: var(--paper);
}
.btn-ghost:hover { border-color: var(--amber); color: var(--amber); }

.btn-ghost.on-light {
  border-color: var(--line);
  color: var(--ink);
}
.btn-ghost.on-light:hover { border-color: var(--amber); color: var(--ink); background: var(--paper-dim); }

/* ---------- Nav ---------- */
header.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(18, 23, 43, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-on-dark);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--paper);
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.wordmark span { color: var(--amber); }
.logo-mark {
  width: 34px;
  height: 34px;
  display: block;
}

nav.links {
  display: flex;
  gap: 36px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
nav.links a {
  color: var(--slate-light);
  position: relative;
  padding-bottom: 4px;
  transition: color 0.2s ease;
}
nav.links a:hover, nav.links a.active { color: var(--paper); }
nav.links a.active::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--amber);
}

.nav-select {
  display: none;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--ink-soft);
  color: var(--paper);
  border: 1px solid var(--line-on-dark);
  border-radius: 3px;
  padding: 10px 14px;
  -webkit-appearance: none;
  appearance: none;
}

@media (max-width: 820px) {
  nav.links { display: none; }
  .nav-select { display: block; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
  padding: 120px 0 100px;
}

.hero canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.55;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.hero h1 { color: var(--paper); margin-top: 18px; }
.hero p.lede {
  color: var(--slate-light);
  font-size: 1.12rem;
  max-width: 560px;
  margin-top: 22px;
}

.hero .cta-row {
  display: flex;
  gap: 16px;
  margin-top: 40px;
  flex-wrap: wrap;
}

/* ---------- Sections ---------- */
section { padding: 96px 0; }
section.dim { background: var(--paper-dim); }
section.dark { background: var(--ink); color: var(--paper); }
section.dark p { color: var(--slate-light); }
section.dark h2, section.dark h3 { color: var(--paper); }

.section-head {
  max-width: 620px;
  margin-bottom: 56px;
}
.section-head h2 { margin-top: 14px; }
.section-head p { margin-top: 16px; font-size: 1.02rem; }

/* ---------- Grids ---------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
@media (max-width: 900px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 32px 28px;
  border-radius: 3px;
}
section.dim .card, section.dark .card { background: var(--ink-soft); border-color: var(--line-on-dark); }
section.dim .card { background: var(--paper); }

.card .num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--amber);
  letter-spacing: 0.08em;
}

.card h3 { margin-top: 14px; }
.card p { margin-top: 10px; font-size: 0.95rem; }

.card-icon {
  width: 40px; height: 40px;
  color: var(--amber);
  margin-bottom: 6px;
}

/* ---------- Footer ---------- */
footer {
  background: var(--ink);
  color: var(--slate-light);
  padding: 56px 0 32px;
  border-top: 1px solid var(--line-on-dark);
}
.footer-top {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--line-on-dark);
}
.footer-cols { display: flex; gap: 64px; flex-wrap: wrap; }
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--paper);
  margin-bottom: 14px;
}
.footer-col a, .footer-col p {
  display: block;
  font-size: 0.9rem;
  color: var(--slate-light);
  margin-bottom: 8px;
}
.footer-col a:hover { color: var(--amber); }
.footer-bottom {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--slate-light);
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- Misc page bits ---------- */
.page-hero {
  background: var(--ink);
  color: var(--paper);
  padding: 84px 0 64px;
}
.page-hero h1 { color: var(--paper); margin-top: 16px; font-size: clamp(2rem, 4vw, 3rem); }
.page-hero p { color: var(--slate-light); margin-top: 16px; max-width: 600px; }

.divider {
  height: 1px;
  background: var(--line);
  border: none;
  margin: 0;
}

.note-box {
  border: 1px dashed var(--slate-light);
  background: var(--paper-dim);
  padding: 18px 22px;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--slate);
  margin-top: 24px;
}

table.values-table { width: 100%; border-collapse: collapse; }

form.contact-form {
  display: grid;
  gap: 20px;
  max-width: 560px;
}
form.contact-form label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 8px;
}
form.contact-form input,
form.contact-form textarea {
  width: 100%;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--ink);
}
form.contact-form input:focus,
form.contact-form textarea:focus {
  outline: 2px solid var(--amber);
  outline-offset: 1px;
}
form.contact-form textarea { resize: vertical; min-height: 130px; }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

/* ---------- Animations ---------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-inner > *,
.page-hero .wrap > * {
  animation: fadeUp 0.7s ease both;
}
.hero-inner > *:nth-child(1), .page-hero .wrap > *:nth-child(1) { animation-delay: 0.05s; }
.hero-inner > *:nth-child(2), .page-hero .wrap > *:nth-child(2) { animation-delay: 0.15s; }
.hero-inner > *:nth-child(3), .page-hero .wrap > *:nth-child(3) { animation-delay: 0.25s; }
.hero-inner > *:nth-child(4), .page-hero .wrap > *:nth-child(4) { animation-delay: 0.35s; }

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

.card {
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--amber);
  box-shadow: 0 12px 28px rgba(18, 23, 43, 0.08);
}