/* Vanta website — palette mirrors ThemeManager so the site matches the app.
   Accent is always #7c3aed. Radii stay between 6px and 14px. */

:root,
:root[data-theme="dark"] {
  --window: #0d0a14;
  --surface: #171120;
  --raised: #20172d;
  --sidebar: #110d1a;
  --border: #2c223b;
  --border-strong: #46345e;
  --text: #f5f0fb;
  --muted: #a99ab9;
  --accent: #7c3aed;
  --accent-hover: #8b5cf6;
  --accent-pressed: #6d28d9;
  --accent-soft: #2a1b43;
  --selection: #3a2560;
  --hover: #2a2038;
  --success: #4ade80;
  --warning: #fbbf24;
  --danger: #f87171;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --shadow-soft: 0 8px 24px rgba(0, 0, 0, 0.32);
}

:root[data-theme="light"] {
  --window: #f7f4fc;
  --surface: #ffffff;
  --raised: #fbf8ff;
  --sidebar: #f0eafb;
  --border: #e1d8ee;
  --border-strong: #c8b7e2;
  --text: #21172f;
  --muted: #756686;
  --accent: #7c3aed;
  --accent-hover: #6d28d9;
  --accent-pressed: #5b21b6;
  --accent-soft: #ede4ff;
  --selection: #e9dcff;
  --hover: #f0e8fb;
  --success: #15803d;
  --warning: #b45309;
  --danger: #dc2626;
  --shadow: 0 18px 46px rgba(35, 18, 60, 0.14);
  --shadow-soft: 0 8px 22px rgba(35, 18, 60, 0.10);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--window);
  color: var(--text);
  font-family: Inter, Cantarell, "Noto Sans", "Source Sans 3", "Open Sans",
    "Fira Sans", Ubuntu, "DejaVu Sans", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent-hover); text-decoration: none; }
a:hover { text-decoration: underline; }

code {
  font-family: "DejaVu Sans Mono", "Liberation Mono", ui-monospace, monospace;
  font-size: 0.86em;
  background: var(--accent-soft);
  color: var(--text);
  padding: 0.12em 0.42em;
  border-radius: 6px;
}

.wrap { width: min(1160px, 100% - 2.5rem); margin-inline: auto; }

/* ---------- nav ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--window) 82%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  width: min(1160px, 100% - 2.5rem);
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  min-height: 62px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  color: var(--text);
}
.brand:hover { text-decoration: none; }
.brand img { border-radius: 9px; }

.nav-links { display: flex; gap: 1.35rem; margin-left: 0.75rem; }
.nav-links a {
  position: relative;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.92rem;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -0.4rem;
  height: 2px;
  border-radius: 2px;
  background: var(--accent-hover);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.22s ease;
}
.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-links a:hover::after,
.nav-links a:focus-visible::after { transform: scaleX(1); }

.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 0.6rem; }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.05rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--raised);
  color: var(--text);
  font: inherit;
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.05s ease;
}
.btn:hover {
  background: var(--hover);
  border-color: var(--border-strong);
  text-decoration: none;
}
.btn:active { transform: translateY(1px); }
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 8px 22px color-mix(in srgb, var(--accent) 38%, transparent);
}
.btn.primary:hover { background: var(--accent-pressed); border-color: var(--accent-pressed); }
.btn.lg { padding: 0.72rem 1.4rem; font-size: 1rem; }
.btn.icon { padding: 0.5rem; border-radius: 12px; }
.btn.github { background: var(--surface); }

.i-moon { display: none; }
:root[data-theme="light"] .i-moon { display: inline; }
:root[data-theme="light"] .i-sun { display: none; }
#themeToggle svg { fill: none; stroke: currentColor; }
#themeToggle .i-moon { fill: currentColor; stroke: none; }

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

.hero {
  position: relative;
  overflow: hidden;
  padding: 4.5rem 0 4rem;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -30% 30% 40% -10%;
  background: radial-gradient(closest-side,
      color-mix(in srgb, var(--accent) 34%, transparent), transparent 78%);
  filter: blur(18px);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 3rem;
  align-items: center;
}
.pill {
  display: inline-block;
  padding: 0.32rem 0.8rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-hover);
  border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.hero h1 {
  font-size: clamp(2.2rem, 4.4vw, 3.5rem);
  line-height: 1.06;
  letter-spacing: -0.025em;
  margin: 1.1rem 0 0;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--accent-hover), #c084fc);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lede {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 34rem;
  margin: 1.1rem 0 0.6rem;
}
.promise {
  font-weight: 700;
  color: var(--text);
  margin: 0.4rem 0 0;
}
.cta { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 1.6rem; }
.cta.center { justify-content: center; }

.hero-badges {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.1rem;
  margin: 1.6rem 0 0;
  padding: 0;
  color: var(--muted);
  font-size: 0.88rem;
}
.hero-badges li { position: relative; padding-left: 1rem; }
.hero-badges li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.52em;
  width: 6px; height: 6px;
  border-radius: 2px;
  background: var(--accent);
}

.shot { margin: 0; }
.shot img {
  width: 100%;
  display: block;
  border-radius: 14px;
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow);
}
.shot figcaption {
  margin-top: 0.7rem;
  color: var(--muted);
  font-size: 0.82rem;
  text-align: center;
}

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

.section { padding: 4rem 0; }
.section.alt {
  background: var(--sidebar);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section-head { max-width: 46rem; margin-bottom: 2.2rem; }
.section-head h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.15rem);
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
}
.section-head p { color: var(--muted); margin: 0; }

/* ---------- cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.1rem;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.4rem 1.45rem;
  transition: border-color 0.15s ease, transform 0.15s ease, background 0.15s ease;
}
.card:hover {
  border-color: var(--border-strong);
  background: var(--raised);
  transform: translateY(-2px);
}
.card h3 {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 0.55rem;
  font-size: 1.06rem;
}
.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }
.glyph {
  display: inline-grid;
  place-items: center;
  width: 30px; height: 30px;
  flex: 0 0 30px;
  border-radius: 9px;
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-size: 0.85rem;
}

/* ---------- comparison table ---------- */

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}
table.compare {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
  font-size: 0.92rem;
}
table.compare th,
table.compare td {
  padding: 0.85rem 1rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--border);
}
table.compare small { color: var(--muted); font-weight: 500; }
table.compare thead th {
  position: sticky;
  top: 0;
  background: var(--raised);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  border-bottom: 1px solid var(--border-strong);
}
table.compare thead th.vanta,
table.compare td.vanta { color: var(--accent-hover); }
table.compare thead th.vanta { color: var(--text); }
table.compare tbody th {
  font-weight: 600;
  color: var(--text);
}
table.compare tbody tr:hover td,
table.compare tbody tr:hover th { background: var(--hover); }
table.compare tr:last-child td,
table.compare tr:last-child th { border-bottom: none; }

table.compare th.vanta,
table.compare td.vanta {
  background: var(--accent-soft);
  border-left: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  border-right: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
}
table.compare thead th.vanta {
  background: color-mix(in srgb, var(--accent) 26%, var(--raised));
  border-top: 2px solid var(--accent);
}
.yes { color: var(--success); font-weight: 700; }
.no { color: var(--muted); }
.note { color: var(--warning); font-weight: 600; }

.footnote {
  margin-top: 1.3rem;
  color: var(--muted);
  font-size: 0.86rem;
  max-width: 62rem;
}

/* ---------- callout ---------- */

.callout {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: space-between;
  background: linear-gradient(120deg, var(--accent-soft), var(--surface));
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  border-radius: 14px;
  padding: 1.8rem 2rem;
}
.callout h2 { margin: 0 0 0.4rem; font-size: 1.4rem; }
.callout p { margin: 0; color: var(--muted); max-width: 46rem; }

/* ---------- download ---------- */

.download { text-align: center; }
.download h2 { font-size: clamp(1.6rem, 2.6vw, 2.1rem); margin: 0 0 0.6rem; }
.download > p { color: var(--muted); max-width: 46rem; margin: 0 auto; }
.packages {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
  margin: 1.8rem 0 0;
  padding: 0;
}
.packages li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.5rem 0.9rem;
  font-size: 0.86rem;
  color: var(--muted);
}
.packages b { color: var(--accent-hover); font-family: "DejaVu Sans Mono", monospace; }

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

.footer {
  border-top: 1px solid var(--border);
  background: var(--sidebar);
  padding: 2.5rem 0 2rem;
  margin-top: 1rem;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.footer-brand { display: flex; align-items: center; gap: 0.75rem; }
.footer-brand img { border-radius: 8px; }
.footer-brand strong { display: block; }
.footer-brand span { color: var(--muted); font-size: 0.86rem; }
.footer-links { display: flex; gap: 1.3rem; flex-wrap: wrap; }
.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.9rem;
}
.footer-links a:hover { color: var(--text); text-decoration: none; }
.footer-note {
  margin-top: 1.6rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.82rem;
}

/* ---------- motion ---------- */

/* The page blurs a little while it eases to a section, so the jump reads as
   movement instead of a teleport. The first declaration is the fallback; the
   second, the directional SVG filter, wins only where url() filters work. */
main { transition: filter 0.28s ease; }
.nav-animating main { filter: blur(2px); }
.nav-animating main { filter: url(#nav-motion-blur); }
/* A filter makes main a containing block, which would unsettle the table's
   sticky header mid-scroll. Pin it back to normal for the moment it lasts. */
.nav-animating table.compare thead th { position: static; }

/* Reveal on scroll. The hidden state is gated on a class the script adds, so
   the content is never hidden without JavaScript or under reduced motion. */
.motion-ready .reveal {
  opacity: 0;
  transform: translateY(14px);
}
.motion-ready .reveal.revealed {
  opacity: 1;
  transform: none;
  transition: opacity 0.55s ease, transform 0.6s cubic-bezier(0.22, 0.72, 0.2, 1);
  transition-delay: var(--reveal-delay, 0ms);
}

.card:hover .glyph { background: color-mix(in srgb, var(--accent) 26%, var(--accent-soft)); }

/* ---------- responsive ---------- */

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2rem; }
  .nav-links { display: none; }
}
@media (max-width: 560px) {
  .hero { padding: 3rem 0 2.5rem; }
  .section { padding: 3rem 0; }
  .callout { padding: 1.4rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
  /* The script already skips both, but keep the stylesheet honest on its own. */
  .motion-ready .reveal { opacity: 1; transform: none; }
  .nav-animating main { filter: none; }
}