@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --bg: #14161a;
  --surface: #1c1f24;
  --surface-2: #20242b;
  --border: #2c3038;
  --text: #ebe8e3;
  --text-muted: #8f939b;
  --accent: #c98a3e;
  --accent-hover: #dd9c4f;
  --accent-muted: rgba(201, 138, 62, 0.14);
  --verdigris: #5a9367;
  --paper: #f2ead6;
  --paper-ink: #2a2114;
  --radius: 8px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'IBM Plex Sans', -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', monospace;
  --content-width: 860px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.55;
}

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

a { color: var(--accent); }
a:hover { color: var(--accent-hover); }

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

.wrap {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* --- Nav --- */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(20, 22, 26, 0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.site-nav .wrap {
  max-width: 1080px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.9rem;
  padding-bottom: 0.9rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.brand-mark {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  border-radius: 50%;
  box-shadow: 0 0 0 1px rgba(232, 230, 226, 0.14);
}

.nav-links {
  display: flex;
  gap: 1.6rem;
  font-size: 0.88rem;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
}

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

.nav-cta {
  border: 1px solid var(--accent);
  color: var(--accent) !important;
  border-radius: var(--radius);
  padding: 0.4rem 0.85rem;
}

.nav-cta:hover {
  background: var(--accent-muted);
  color: var(--accent-hover) !important;
}

/* --- Site-wide background grid --- */

.site-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: 0.055;
  background-image:
    linear-gradient(rgba(232, 230, 226, 0.7) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232, 230, 226, 0.7) 1px, transparent 1px);
  background-size: 58px 58px;
  animation: site-grid-pan 90s linear infinite;
  pointer-events: none;
}

@keyframes site-grid-pan {
  from { background-position: 0 0; }
  to { background-position: 460px 460px; }
}

@media (prefers-reduced-motion: reduce) {
  .site-grid { animation: none; }
}

/* --- Hero --- */

.hero {
  padding: 4.5rem 0 3.5rem;
  border-bottom: 1px solid var(--border);
  background: radial-gradient(ellipse 900px 500px at 50% -10%, rgba(201, 138, 62, 0.1), transparent 65%);
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent-muted);
  background: var(--accent-muted);
  border-radius: 999px;
  padding: 0.3rem 0.7rem;
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 4.4vw, 3.1rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 1.1rem;
  max-width: 15ch;
}

.hero p.lede {
  font-size: 1.08rem;
  color: var(--text-muted);
  max-width: 46ch;
  margin: 0 0 2rem;
}

.hero-ctas {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius);
  padding: 0.72rem 1.15rem;
  border: 1px solid transparent;
  transition: background 0.12s ease, border-color 0.12s ease, transform 0.12s ease;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--accent);
  color: #1a1408 !important;
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }

.btn-secondary {
  background: transparent;
  color: var(--text) !important;
  border-color: var(--border);
}
.btn-secondary:hover { background: var(--surface); border-color: var(--text-muted); }

/* --- Odometer signature --- */

.odometer {
  display: inline-flex;
  gap: 3px;
  background: #0e0f11;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid #35291a;
  box-shadow: inset 0 2px 6px rgba(0,0,0,0.6), 0 8px 30px rgba(0,0,0,0.35);
}

.odometer-digit {
  width: 34px;
  height: 48px;
  background: linear-gradient(180deg, var(--paper), #e6dcc2);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.15);
  position: relative;
}

.odometer-digit::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.18), transparent 30%, transparent 70%, rgba(0,0,0,0.18));
  pointer-events: none;
}

.odometer-digit span {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1.55rem;
  color: var(--paper-ink);
  transition: transform 0.35s cubic-bezier(0.3, 0.7, 0.4, 1);
  display: inline-block;
}

.odometer-caption {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 0.75rem;
}

@media (prefers-reduced-motion: reduce) {
  .odometer-digit span { transition: none; }
}

/* --- Reveal on scroll --- */

.reveal {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    transition: none;
    opacity: 1;
    transform: none;
  }
}

/* --- Sections --- */

section.block {
  padding: 3.5rem 0;
  border-bottom: 1px solid var(--border);
}

section.block:last-of-type { border-bottom: none; }

.block h2 {
  font-family: var(--font-display);
  font-size: 1.7rem;
  letter-spacing: -0.015em;
  margin: 0 0 0.6rem;
}

.block > .wrap > p.section-lede {
  color: var(--text-muted);
  max-width: 56ch;
  margin: 0 0 2.25rem;
}

/* Before / after */

.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 700px) {
  .compare { grid-template-columns: 1fr; }
}

.compare-col {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.compare-col h3 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 1rem;
  color: var(--text-muted);
}

.scatter-notes {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.scatter-note {
  background: var(--paper);
  color: var(--paper-ink);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 0.5rem 0.7rem;
  border-radius: 3px;
  box-shadow: 0 3px 8px rgba(0,0,0,0.3);
}
.scatter-note:nth-child(1) { transform: rotate(-1.5deg); }
.scatter-note:nth-child(2) { transform: rotate(1deg); margin-left: 1.1rem; }
.scatter-note:nth-child(3) { transform: rotate(-0.5deg); }
.scatter-note:nth-child(4) { transform: rotate(1.5deg); margin-left: 0.6rem; }

.mock-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--verdigris);
  border-radius: 5px;
  padding: 0.65rem 0.85rem;
  margin-bottom: 0.6rem;
  font-size: 0.85rem;
  transition: transform 0.12s ease, border-left-color 0.12s ease;
}

.mock-row:last-child { margin-bottom: 0; }

.mock-row:hover {
  transform: translateY(-1px);
  border-left-color: var(--accent);
}

.mock-row .mname { font-weight: 600; display: block; }
.mock-row .mmeta { color: var(--text-muted); font-family: var(--font-mono); font-size: 0.78rem; }

.mock-badge {
  font-size: 0.66rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: rgba(90, 147, 103, 0.16);
  color: var(--verdigris);
}

/* Feature rows */

.feature-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 1.5rem;
  padding: 1.75rem 0;
  border-top: 1px solid var(--border);
}

.feature-row:first-of-type { border-top: none; padding-top: 0; }

@media (max-width: 700px) {
  .feature-row { grid-template-columns: 1fr; gap: 0.5rem; }
}

.feature-row h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin: 0;
  color: var(--accent);
}

.feature-row p {
  margin: 0;
  color: var(--text-muted);
  max-width: 52ch;
}

/* Stats strip */

.stats-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  margin-top: 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.stats-strip .stat {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.stats-strip .stat strong {
  color: var(--text);
  font-weight: 600;
}

/* Download */

.download-grid {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.download-card {
  flex: 1 1 220px;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: border-color 0.12s ease, background 0.12s ease;
}

.download-card:hover { border-color: var(--accent); background: var(--surface); }

.download-card.recommended { border-color: var(--accent); background: var(--accent-muted); }

.download-card .os { font-weight: 600; display: block; }
.download-card .fmt { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-muted); margin-bottom: 0.15rem; }

.download-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  text-decoration: none;
  color: #1a1408 !important;
  background: var(--accent);
  border-radius: var(--radius);
  padding: 0.6rem 0.9rem;
  transition: background 0.12s ease;
}

.download-btn:hover { background: var(--accent-hover); }

.download-alt {
  font-size: 0.78rem;
  color: var(--text-muted) !important;
  text-decoration: underline;
  text-decoration-color: var(--border);
}

.download-alt:hover { color: var(--text) !important; }

.fineprint {
  margin-top: 1.5rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Footer */

footer {
  padding: 2.5rem 0 3.5rem;
}

footer .wrap {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

footer a { color: var(--text-muted); text-decoration: underline; text-decoration-color: var(--border); }
footer a:hover { color: var(--text); }

/* Help / privacy page */

.help-toggle {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.help-toggle a {
  text-decoration: none;
  font-size: 0.85rem;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  color: var(--text-muted) !important;
}

.help-toggle a.active {
  border-color: var(--accent);
  color: var(--accent) !important;
  background: var(--accent-muted);
}

details.topic {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 0.9rem 1.1rem;
  margin-bottom: 0.6rem;
}

details.topic summary {
  cursor: pointer;
  font-weight: 500;
  list-style: none;
}
details.topic summary::-webkit-details-marker { display: none; }
details.topic summary::before { content: "+ "; color: var(--accent); font-family: var(--font-mono); }
details.topic[open] summary::before { content: "- "; }

details.topic p { color: var(--text-muted); margin: 0.75rem 0 0; }
details.topic ol { color: var(--text-muted); padding-left: 1.2rem; }

.legal-section { margin-bottom: 1.75rem; }
.legal-section h3 { font-size: 0.95rem; margin: 0 0 0.5rem; }
.legal-section p { color: var(--text-muted); margin: 0 0 0.5rem; }

h1.page-title {
  font-family: var(--font-display);
  font-size: 2rem;
  letter-spacing: -0.015em;
  margin: 3rem 0 0.5rem;
}

p.page-lede {
  color: var(--text-muted);
  margin: 0 0 2rem;
}

/* --- Text legibility over the background grid --- */

.hero p.lede,
.section-lede,
.feature-row p,
.legal-section p,
.fineprint,
p.page-lede {
  display: inline-block;
  background: rgba(20, 22, 26, 0.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  padding: 0.15rem 0.5rem;
  margin-left: -0.5rem;
  border-radius: 5px;
}

/* --- Mobile --- */

@media (max-width: 640px) {
  .wrap {
    padding: 0 1.1rem;
  }

  .site-nav .wrap {
    flex-wrap: wrap;
    justify-content: center;
    row-gap: 0.55rem;
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
  }

  .nav-links {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem 1.1rem;
    font-size: 0.82rem;
  }

  .nav-cta {
    padding: 0.35rem 0.75rem;
  }

  .hero {
    padding: 2.75rem 0 2.25rem;
  }

  .hero p.lede {
    font-size: 1rem;
  }

  .hero-ctas {
    margin-bottom: 2rem;
  }

  .btn {
    flex: 1 1 auto;
    justify-content: center;
  }

  .odometer {
    padding: 8px 9px;
    gap: 2px;
  }

  .odometer-digit {
    width: 26px;
    height: 38px;
  }

  .odometer-digit span {
    font-size: 1.25rem;
  }

  section.block {
    padding: 2.5rem 0;
  }

  .compare-col {
    padding: 1.1rem;
  }

  .feature-row {
    padding: 1.25rem 0;
  }

  h1.page-title {
    margin-top: 2rem;
    font-size: 1.6rem;
  }
}