/* Chromasyn — single stylesheet, no build step, no external assets. */

:root {
  --bg:        #0a0c0f;
  --bg-alt:    #0f1318;
  --surface:   #12171d;
  --border:    #1e252e;
  --border-lit:#2b3540;
  --text:      #e7ebf0;
  --text-dim:  #8d97a5;
  --accent:    #2dd4bf;
  --accent-2:  #a78bfa;

  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
               "Liberation Mono", monospace;

  --wrap: 68rem;
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: #5eead4; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 4.25rem;
}

.wordmark {
  display: inline-block;
  text-decoration: none;
  color: var(--text);
}

.wordmark-text {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: lowercase;
}

.wordmark-rule {
  display: block;
  height: 2px;
  margin-top: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.site-nav {
  display: flex;
  gap: 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
}

.site-nav a {
  color: var(--text-dim);
  text-decoration: none;
}

.site-nav a:hover { color: var(--text); }

@media (max-width: 34rem) {
  .site-nav { display: none; }
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  padding-block: clamp(5rem, 14vw, 9rem);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

/* faint chroma wash, purely decorative */
.hero::before {
  content: "";
  position: absolute;
  inset: -40% -10% auto -10%;
  height: 70%;
  background:
    radial-gradient(50% 60% at 20% 40%, rgba(45, 212, 191, 0.13), transparent 70%),
    radial-gradient(45% 55% at 75% 30%, rgba(167, 139, 250, 0.11), transparent 70%);
  pointer-events: none;
}

.hero .wrap { position: relative; }

.eyeline {
  margin: 0 0 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.4rem, 6.5vw, 4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 600;
}

.lede {
  max-width: 44ch;
  margin: 1.75rem 0 0;
  font-size: 1.1rem;
  color: var(--text-dim);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin: 2.5rem 0 0;
}

.button {
  display: inline-block;
  padding: 0.7rem 1.5rem;
  border: 1px solid var(--accent);
  border-radius: 3px;
  background: var(--accent);
  color: #04211d;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: background 120ms ease, border-color 120ms ease, color 120ms ease;
}

.button:hover { background: #5eead4; border-color: #5eead4; color: #04211d; }

.button-ghost {
  background: transparent;
  border-color: var(--border-lit);
  color: var(--text-dim);
}

.button-ghost:hover {
  background: transparent;
  border-color: var(--text-dim);
  color: var(--text);
}

/* ---------- sections ---------- */

.section {
  padding-block: clamp(4rem, 10vw, 6.5rem);
  border-bottom: 1px solid var(--border);
}

.section-alt { background: var(--bg-alt); }

.section-title {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  margin: 0 0 2.5rem;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.section-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.1em;
}

/* ---------- services ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}

.card {
  background: var(--surface);
  padding: 1.75rem;
  transition: background 140ms ease;
}

.card:hover { background: #161c24; }

.card h3 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-dim);
}

/* ---------- approach ---------- */

.prose {
  max-width: 60ch;
}

.prose p {
  margin: 0 0 1.25rem;
  color: var(--text-dim);
}

.prose p:last-child { margin-bottom: 0; }

/* ---------- document pages (privacy) ---------- */

.doc-title {
  margin: 0;
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.doc-date {
  margin: 0.6rem 0 2.75rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.doc .prose h2 {
  margin: 2.75rem 0 1rem;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--text);
}

.doc .prose h2:first-of-type { margin-top: 2rem; }

/* ---------- contact ---------- */

.contact-lede {
  margin: 0;
  color: var(--text-dim);
}

.contact-email {
  margin: 1rem 0 0;
  font-family: var(--font-mono);
  font-size: clamp(1.15rem, 3.5vw, 1.6rem);
  letter-spacing: -0.01em;
}

.contact-email a { text-decoration: none; border-bottom: 1px solid var(--border-lit); }
.contact-email a:hover { border-bottom-color: var(--accent); }

.contact-note {
  margin: 1.5rem 0 0;
  font-size: 0.9rem;
  color: var(--text-dim);
}

/* ---------- footer ---------- */

.site-footer {
  padding-block: 2.5rem 3rem;
  font-size: 0.82rem;
  color: var(--text-dim);
}

.site-footer p { margin: 0; }

/* Legal identifiers. Presented as a labelled list rather than a paragraph:
   a verifier scanning for a CUI or trade register number should find it
   without reading prose. */
.legal {
  margin: 0;
  border-top: 1px solid var(--border);
  padding-top: 1.75rem;
}

.legal-row {
  display: grid;
  grid-template-columns: 11rem 1fr;
  gap: 0.5rem 1rem;
  padding-block: 0.3rem;
}

.legal dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding-top: 0.15rem;
}

.legal dd {
  margin: 0;
  color: var(--text);
}

@media (max-width: 34rem) {
  .legal-row { grid-template-columns: 1fr; gap: 0; }
  .legal dd { margin-bottom: 0.5rem; }
}

/* Temporary — marks facts still to be supplied. Remove with the placeholders. */
.todo {
  color: #fbbf24;
  font-family: var(--font-mono);
  font-size: 0.82em;
}

.footer-meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.footer-meta a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  color: var(--text-dim);
}

.footer-meta a:hover { color: var(--text); }

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}