/* QSec — PQC-Ready Products
   Light-theme, Ubiquiti-inspired. All density/accent driven by CSS vars. */

:root {
  /* Accent (overridable via Tweaks) */
  --accent: #0559C9;
  --accent-600: #0449a8;
  --accent-50: #eaf2fe;
  --accent-100: #d4e4fd;

  /* Neutrals — borrowed from ui.com's restrained palette */
  --ink: #1c1d1f;
  --ink-2: #44464a;
  --ink-3: #6b6e74;
  --ink-4: #9ca0a8;
  --line: #e5e7eb;
  --line-2: #eef0f2;
  --bg: #ffffff;
  --bg-2: #f7f8fa;
  --bg-3: #f1f3f5;

  /* Semantic */
  --ok: #10864c;
  --warn: #b95400;

  /* Density (overridable) */
  --gutter: 24px;
  --card-pad: 28px;
  --card-radius: 14px;
  --section-y: 96px;
  --hero-y: 120px;

  /* Type scale */
  --display: clamp(48px, 6.4vw, 96px);
  --h1: clamp(36px, 4vw, 56px);
  --h2: clamp(28px, 2.6vw, 40px);
  --h3: 22px;
  --body: 15px;
  --small: 13px;
  --micro: 11px;

  /* Container */
  --maxw: 1280px;
}

[data-density="compact"] {
  --gutter: 16px;
  --card-pad: 20px;
  --section-y: 64px;
  --hero-y: 88px;
  --card-radius: 10px;
}
[data-density="spacious"] {
  --gutter: 32px;
  --card-pad: 36px;
  --section-y: 128px;
  --hero-y: 160px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-feature-settings: 'cv11', 'ss01', 'ss03';
  color: var(--ink);
  background: var(--bg);
  font-size: var(--body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Type ---------- */
.eyebrow {
  font-size: var(--micro);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}
.eyebrow.ink { color: var(--ink-3); }
.display {
  font-family: 'Instrument Serif', 'Times New Roman', serif;
  font-weight: 400;
  font-size: var(--display);
  line-height: 0.96;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin: 0;
}
.h1 {
  font-size: var(--h1);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0;
}
.h2 {
  font-size: var(--h2);
  font-weight: 600;
  letter-spacing: -0.018em;
  line-height: 1.1;
  margin: 0;
}
.h3 {
  font-size: var(--h3);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin: 0;
}
.lede {
  font-size: 18px;
  line-height: 1.5;
  color: var(--ink-2);
  max-width: 56ch;
  text-wrap: pretty;
}
.mono {
  font-family: 'JetBrains Mono', ui-monospace, 'SF Mono', monospace;
  font-feature-settings: 'zero', 'ss01';
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn.primary {
  background: var(--accent);
  color: white;
}
.btn.primary:hover { background: var(--accent-600); }
.btn.secondary {
  background: var(--ink);
  color: white;
}
.btn.secondary:hover { background: #000; }
.btn.ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn.ghost:hover { background: var(--bg-2); border-color: #d6d8dc; }
.btn.linklike {
  padding: 0;
  background: none;
  color: var(--accent);
  font-weight: 500;
  border: none;
}
.btn.linklike:hover { text-decoration: underline; }
.btn.sm { padding: 6px 12px; font-size: 12.5px; }

/* ---------- Pill / Badge ---------- */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  color: var(--ink-2);
  font-size: 12px;
  border-radius: 999px;
  font-weight: 500;
}
.pill.accent {
  background: var(--accent-50);
  border-color: var(--accent-100);
  color: var(--accent-600);
}
.pill.dot::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 3px rgba(16,134,76,0.15);
}
.pill.world-first {
  background: #fff8e6;
  border-color: #fcecbe;
  color: #8a5a00;
}

/* ---------- Card ---------- */
.card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--card-radius);
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.card.hoverable:hover {
  border-color: #cfd2d7;
  box-shadow: 0 8px 24px -12px rgba(0,0,0,0.08);
}

/* ---------- Section ---------- */
section { padding-block: var(--section-y); }
section.tight { padding-block: 48px; }
.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.section-head .text { max-width: 640px; }
.section-head .h2 { margin-top: 12px; }

/* ---------- Hairlines ---------- */
hr.hair {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 0;
}

/* ---------- Top Nav ---------- */
.topnav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.topnav-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 56px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}
.topnav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  letter-spacing: -0.01em;
  font-size: 16px;
}
.topnav-logo .glyph {
  width: 22px; height: 22px;
  border-radius: 5px;
  background: var(--ink);
  display: grid; place-items: center;
  color: white;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: -0.04em;
}
.topnav-links {
  display: flex;
  gap: 4px;
  flex: 1;
}
.topnav-link {
  padding: 6px 12px;
  font-size: 13.5px;
  color: var(--ink-2);
  border-radius: 8px;
  cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px;
  font-weight: 450;
}
.topnav-link:hover { background: var(--bg-2); color: var(--ink); }
.topnav-link.active { color: var(--ink); }
.topnav-right {
  display: flex; align-items: center; gap: 8px;
}
.topnav-icon-btn {
  width: 32px; height: 32px;
  display: grid; place-items: center;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--bg);
  cursor: pointer;
  color: var(--ink-2);
}
.topnav-icon-btn:hover { background: var(--bg-2); }

/* Mega menu */
.mega {
  position: absolute;
  left: 0; right: 0; top: 100%;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line-2);
  padding: 32px 24px 40px;
  display: none;
}
.mega.open { display: block; }
.mega-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
}
.mega-col-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 16px;
}
.mega-products {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
}
.mega-product {
  display: flex;
  gap: 14px;
  padding: 12px;
  border-radius: 10px;
  cursor: pointer;
  align-items: flex-start;
}
.mega-product:hover { background: var(--bg-2); }
.mega-product-thumb {
  width: 56px; height: 56px;
  flex-shrink: 0;
  border-radius: 8px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  display: grid; place-items: center;
}
.mega-product-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 2px;
}
.mega-product-desc {
  font-size: 12.5px;
  color: var(--ink-3);
  line-height: 1.4;
}
.mega-side ul {
  list-style: none;
  padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 12px;
}
.mega-side a {
  font-size: 13.5px;
  color: var(--ink-2);
  display: inline-flex; align-items: center; gap: 6px;
}
.mega-side a:hover { color: var(--accent); }

/* ---------- Hero ---------- */
.hero {
  padding-block: var(--hero-y);
  position: relative;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.hero-eyebrow-row {
  display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 24px;
}
.hero h1 {
  font-family: 'Instrument Serif', 'Times New Roman', serif;
  font-weight: 400;
  font-size: var(--display);
  line-height: 0.94;
  letter-spacing: -0.025em;
  margin: 0 0 24px;
}
.hero h1 em {
  font-style: italic;
  color: var(--accent);
}
.hero-sub {
  font-size: 18px;
  color: var(--ink-2);
  margin: 0 0 32px;
  max-width: 52ch;
  line-height: 1.5;
}
.hero-actions {
  display: flex; gap: 12px; flex-wrap: wrap; align-items: center;
}
.hero-stats {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
}
.hero-stat-num {
  font-family: 'Instrument Serif', serif;
  font-size: 36px;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--ink);
}
.hero-stat-num sub {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  color: var(--ink-3);
  font-weight: 500;
  vertical-align: baseline;
  margin-left: 4px;
}
.hero-stat-label {
  font-size: 12.5px;
  color: var(--ink-3);
  margin-top: 6px;
}

/* Hero visual side */
.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  background: #fafbfc;
  border-radius: 24px;
  border: 1px solid var(--line);
  overflow: hidden;
}

/* ---------- Product showcase ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
}
.pcard {
  border: 1px solid var(--line);
  border-radius: var(--card-radius);
  background: var(--bg);
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
  position: relative;
}
.pcard:hover {
  border-color: #cfd2d7;
  box-shadow: 0 12px 32px -16px rgba(0,0,0,0.1);
}
.pcard-media {
  aspect-ratio: 16 / 11;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.pcard-body {
  padding: var(--card-pad);
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 12px;
}
.pcard-eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: flex; gap: 6px; align-items: center;
}
.pcard-name {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.012em;
  margin: 0;
}
.pcard-desc {
  font-size: 14px;
  color: var(--ink-3);
  line-height: 1.5;
  margin: 0;
}
.pcard-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.pcard-spec-list {
  display: flex; gap: 12px; flex-wrap: wrap;
  font-size: 12px;
  color: var(--ink-3);
}
.pcard-spec-list span {
  display: inline-flex; gap: 4px; align-items: center;
}
.pcard-spec-list strong {
  color: var(--ink);
  font-weight: 600;
}

/* span helpers */
.span-12 { grid-column: span 12; }
.span-8 { grid-column: span 8; }
.span-6 { grid-column: span 6; }
.span-4 { grid-column: span 4; }
.span-3 { grid-column: span 3; }

/* ---------- Marquee ---------- */
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 24px 0;
  background: var(--bg-2);
}
.marquee-track {
  display: flex;
  gap: 64px;
  animation: scroll 40s linear infinite;
  width: max-content;
  align-items: center;
}
.marquee-item {
  font-size: 14px;
  color: var(--ink-3);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  font-weight: 500;
}
@keyframes scroll {
  to { transform: translateX(-50%); }
}

/* ---------- Tabs ---------- */
.tabs {
  display: inline-flex;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px;
  gap: 2px;
}
.tab {
  padding: 6px 16px;
  font-size: 13px;
  border-radius: 999px;
  cursor: pointer;
  color: var(--ink-3);
  font-weight: 500;
  border: none;
  background: transparent;
}
.tab.active {
  background: var(--bg);
  color: var(--ink);
  box-shadow: 0 1px 2px rgba(0,0,0,0.06);
}

/* ---------- Footer ---------- */
footer.site {
  border-top: 1px solid var(--line);
  background: var(--bg);
  padding: 64px 0 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 48px;
}
.footer-col h4 {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0 0 16px;
}
.footer-col ul {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 10px;
}
.footer-col li a {
  color: var(--ink-2);
  font-size: 13.5px;
}
.footer-col li a:hover { color: var(--accent); }
.footer-meta {
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  font-size: 12.5px;
  color: var(--ink-3);
  flex-wrap: wrap;
  gap: 16px;
}

/* ---------- Live ticker ---------- */
.ticker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--ink-2);
}
.ticker-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--ok);
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ---------- Code block ---------- */
.code-block {
  background: #0b1020;
  color: #e6e9ef;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  line-height: 1.6;
  padding: 24px;
  border-radius: 12px;
  overflow-x: auto;
}
.code-block .kw { color: #a78bfa; }
.code-block .str { color: #86efac; }
.code-block .com { color: #6b7280; }
.code-block .fn { color: #60a5fa; }

/* ---------- Comparison table ---------- */
.compare {
  width: 100%;
  border-collapse: collapse;
}
.compare th, .compare td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.compare thead th {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  font-weight: 600;
}
.compare td .check {
  color: var(--ok);
}
.compare td .cross {
  color: var(--ink-4);
}

/* ---------- Spec sheet ---------- */
.spec-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--card-radius);
  overflow: hidden;
}
.spec-cell {
  background: var(--bg);
  padding: 24px;
}
.spec-cell .label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  margin-bottom: 8px;
  font-weight: 600;
}
.spec-cell .value {
  font-family: 'Instrument Serif', serif;
  font-size: 32px;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--ink);
}
.spec-cell .value sub {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  color: var(--ink-3);
  margin-left: 4px;
  vertical-align: baseline;
}

/* ---------- Mini dashboard ---------- */
.dash {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 24px 64px -32px rgba(0,0,0,0.25);
}
.dash-tb {
  height: 36px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 8px;
}
.dash-tb .dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--line);
}
.dash-tb .dot.r { background: #ff5f57; }
.dash-tb .dot.y { background: #febc2e; }
.dash-tb .dot.g { background: #28c840; }
.dash-tb .url {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px;
  color: var(--ink-3);
  margin-left: 8px;
  background: var(--bg);
  padding: 4px 12px;
  border-radius: 6px;
  border: 1px solid var(--line);
  flex: 1;
  max-width: 300px;
}

/* ---------- Util ---------- */
.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.gap-32 { gap: 32px; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mt-64 { margin-top: 64px; }
.text-ink-3 { color: var(--ink-3); }

/* Responsive */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .span-3 { grid-column: span 6; }
  .span-4 { grid-column: span 12; }
  .span-6 { grid-column: span 12; }
  .span-8 { grid-column: span 12; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .mega-products { grid-template-columns: 1fr 1fr; }
  .mega-inner { grid-template-columns: 1fr; }
  .spec-grid { grid-template-columns: repeat(2, 1fr); }
}