/* Altronite holdco site — single stylesheet, no external requests.
   Design language nods to the product's dark-lux aesthetic: warm near-black,
   one champagne accent, serif display + clean sans. System/fallback fonts only. */

:root {
  --bg: #0e0d0c;
  --ink: #f4efe6;
  --muted: #9c9486;
  --faint: #6b6457;
  --accent: #d9c7a8;
  --accent-ink: #1a1712;
  --line: rgba(244, 239, 230, 0.1);
  --line2: rgba(244, 239, 230, 0.2);
  --surface: rgba(255, 255, 255, 0.05);
  --surface2: rgba(255, 255, 255, 0.085);
  --maxw: 940px;
  --serif: Georgia, "Times New Roman", Times, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color-scheme: dark;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100%;
  font-family: var(--sans);
  color: var(--ink);
  background-color: var(--bg);
  background-image: radial-gradient(120% 80% at 50% -10%, #2a251d 0%, #14110c 55%, #0c0a07 100%);
  background-attachment: fixed;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ---------- layout ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 10px 16px;
  border-radius: 8px;
  font-weight: 700;
  z-index: 100;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
}

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(14, 13, 12, 0.72);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 16px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink);
}
.brand svg {
  display: block;
  width: 30px;
  height: 30px;
  flex: none;
}
.brand .wordmark {
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: 0.02em;
  font-weight: 500;
}
.site-nav {
  display: flex;
  gap: 22px;
  font-size: 14px;
}
.site-nav a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s ease;
}
.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--ink);
}

/* ---------- hero ---------- */
.hero {
  padding: 96px 0 72px;
  border-bottom: 1px solid var(--line);
}
.eyebrow {
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  margin: 0 0 20px;
}
.hero h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(40px, 8vw, 76px);
  line-height: 1.02;
  letter-spacing: -0.015em;
  margin: 0 0 24px;
}
.hero .lede {
  font-size: clamp(17px, 2.4vw, 21px);
  color: var(--muted);
  max-width: 46ch;
  margin: 0;
}

/* ---------- sections ---------- */
section {
  padding: 72px 0;
  border-bottom: 1px solid var(--line);
}
.section-label {
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--faint);
  font-weight: 700;
  margin: 0 0 28px;
}
h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(28px, 4.5vw, 40px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0 0 20px;
}

/* ---------- product cards ---------- */
.products {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.product-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.product-card:hover {
  border-color: var(--line2);
  background: var(--surface2);
}
.product-head {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.product-name {
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 500;
  margin: 0;
}
.product-card p {
  color: var(--muted);
  font-size: 15px;
  margin: 0;
  flex: 1;
}
.badge {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 700;
  padding: 5px 10px;
  border-radius: 100px;
}
.badge-beta {
  background: rgba(217, 199, 168, 0.12);
  color: var(--accent);
  border: 1px solid rgba(217, 199, 168, 0.35);
}
.badge-live {
  background: rgba(120, 200, 140, 0.1);
  color: #93d3a2;
  border: 1px solid rgba(120, 200, 140, 0.3);
}
.product-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  align-self: flex-start;
}
.product-link:hover,
.product-link:focus-visible {
  text-decoration: underline;
}
.product-note {
  color: var(--faint);
  font-size: 14px;
}

/* ---------- footer ---------- */
.site-footer {
  padding: 48px 0;
  color: var(--muted);
  font-size: 14px;
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 40px;
  align-items: center;
  justify-content: space-between;
}
.site-footer a {
  color: var(--muted);
  text-decoration: none;
}
.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--ink);
  text-decoration: underline;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}
.footer-mail {
  color: var(--accent) !important;
}

/* ---------- content / legal pages ---------- */
.doc {
  padding: 64px 0 96px;
}
.doc-inner {
  max-width: 720px;
}
.doc h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(32px, 6vw, 52px);
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 0 0 12px;
}
.doc .updated {
  color: var(--faint);
  font-size: 14px;
  margin: 0 0 32px;
}
.doc h2 {
  font-size: clamp(22px, 3.2vw, 28px);
  margin: 44px 0 14px;
}
.doc h3 {
  font-family: var(--sans);
  font-size: 17px;
  font-weight: 700;
  margin: 28px 0 10px;
  color: var(--ink);
}
.doc p,
.doc li {
  color: #d9d3c7;
  font-size: 16px;
}
.doc a {
  color: var(--accent);
}
.doc ul,
.doc ol {
  padding-left: 22px;
}
.doc li {
  margin: 8px 0;
}
.doc strong {
  color: var(--ink);
}

/* draft callout */
.callout {
  background: rgba(217, 199, 168, 0.07);
  border: 1px solid rgba(217, 199, 168, 0.28);
  border-left: 3px solid var(--accent);
  border-radius: 12px;
  padding: 18px 20px;
  margin: 0 0 36px;
  color: var(--muted);
  font-size: 14px;
}
.callout strong {
  color: var(--accent);
}

/* pending placeholder marks in draft legal text */
.pending {
  color: var(--faint);
  font-style: italic;
  border-bottom: 1px dotted var(--faint);
}

/* legal tables */
.doc table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 15px;
}
.doc th,
.doc td {
  text-align: left;
  padding: 12px 14px;
  border: 1px solid var(--line);
  vertical-align: top;
}
.doc th {
  background: var(--surface);
  color: var(--ink);
  font-weight: 700;
}
.doc td {
  color: #d9d3c7;
}

/* ---------- support page ---------- */
.support-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 32px;
}
.support-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 28px;
}
.support-card h2 {
  font-size: 22px;
  margin: 0 0 10px;
}
.support-card p {
  color: var(--muted);
  font-size: 15px;
  margin: 0 0 8px;
}
.support-card a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}
.support-card a:hover {
  text-decoration: underline;
}

/* ---------- 404 ---------- */
.error-page {
  min-height: 64vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px;
}
.error-page .code {
  font-family: var(--serif);
  font-size: clamp(72px, 18vw, 140px);
  line-height: 1;
  color: var(--accent);
  margin: 0;
}
.error-page h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 28px;
  margin: 16px 0 8px;
}
.error-page p {
  color: var(--muted);
  margin: 0 0 28px;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 100px;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  transition: transform 0.1s ease, opacity 0.15s ease;
}
.btn:active {
  transform: scale(0.97);
}
.btn-accent {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn-accent:hover {
  opacity: 0.9;
}

/* ---------- focus visibility ---------- */
a:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- responsive ---------- */
@media (max-width: 720px) {
  .products,
  .support-grid {
    grid-template-columns: 1fr;
  }
  .hero {
    padding: 64px 0 52px;
  }
  section {
    padding: 52px 0;
  }
  .site-nav {
    gap: 16px;
  }
}

@media (max-width: 420px) {
  .wrap {
    padding: 0 18px;
  }
  .site-nav {
    font-size: 13px;
    gap: 12px;
  }
  .brand .wordmark {
    font-size: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}