/* AvenAI — site-wide styles. Cursor.com-style: near-black canvas, one
   indigo accent, quiet borders, generous whitespace, system font stack. */
:root {
  --bg: #09090b;
  --bg-elev: #101013;
  --card: #141417;
  --border: #232328;
  --border-strong: #3f3f46;
  --fg: #fafafa;
  --muted: #a1a1aa;
  --muted-fg: #d4d4d8;
  --accent: #6366f1;
  --accent-soft: rgba(99, 102, 241, 0.14);
  --success: #22c55e;
  --radius: 14px;
  --maxw: 1080px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(9, 9, 11, 0.82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.3px;
}
.brand img { width: 28px; height: 28px; border-radius: 7px; }
.brand:hover { text-decoration: none; }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a {
  color: var(--muted);
  font-size: 14.5px;
  font-weight: 500;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--fg); text-decoration: none; }
.nav-links a.active { color: var(--fg); }
.nav-cta {
  background: var(--fg);
  color: var(--bg) !important;
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 13.5px !important;
}
.nav-cta:hover { opacity: 0.85; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 110px 0 70px; text-align: center; overflow: hidden; }
.hero::before {
  content: "";
  position: absolute;
  top: -260px;
  left: 50%;
  transform: translateX(-50%);
  width: 720px;
  height: 720px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-soft) 0%, transparent 65%);
  pointer-events: none;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted-fg);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 14px;
  margin-bottom: 26px;
}
.hero-badge .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
}
.hero h1 {
  font-size: clamp(38px, 7vw, 64px);
  font-weight: 800;
  letter-spacing: -2px;
  line-height: 1.06;
  max-width: 760px;
  margin: 0 auto;
}
.hero h1 .accent { color: var(--accent); }
.hero .sub {
  color: var(--muted);
  font-size: clamp(16px, 2.2vw, 19px);
  max-width: 620px;
  margin: 22px auto 0;
}
.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 38px;
  flex-wrap: wrap;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  padding: 13px 26px;
  transition: transform 0.15s, opacity 0.15s, background 0.15s;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--fg); color: var(--bg); }
.btn-primary:hover { opacity: 0.88; }
.btn-ghost { border-color: var(--border-strong); color: var(--fg); background: transparent; }
.btn-ghost:hover { background: var(--card); }

/* Play badge */
.play-badge { display: inline-flex; }
.play-badge img { height: 56px; display: block; }
.play-badge:hover { transform: translateY(-1px); }

/* ---------- Screenshot showcase ---------- */
.section { padding: 72px 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 52px; }
.section-head h2 { font-size: clamp(26px, 4vw, 36px); font-weight: 750; letter-spacing: -1px; }
.section-head p { color: var(--muted); margin-top: 12px; font-size: 16.5px; }

.shot-frame {
  background: linear-gradient(180deg, var(--bg-elev), var(--bg));
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 14px;
  max-width: 340px;
  margin: 0 auto;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.55);
}
.shot-frame img { width: 100%; border-radius: 18px; display: block; }

.shots-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 34px 26px;
  justify-items: center;
}
.shot { text-align: center; }
.shot .frame {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 8px;
  transition: transform 0.2s, border-color 0.2s;
}
.shot:hover .frame { transform: translateY(-4px); border-color: var(--border-strong); }
.shot img { width: 100%; border-radius: 16px; display: block; }
.shot figcaption { margin-top: 14px; color: var(--muted-fg); font-size: 14px; font-weight: 600; }
.shot .caption-sub { display: block; color: var(--muted); font-weight: 400; font-size: 13px; margin-top: 2px; }

/* Feature hero shot (chat) */
.feature-split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.feature-split.reverse { grid-template-columns: 0.9fr 1.1fr; }
.feature-copy h3 { font-size: 26px; font-weight: 750; letter-spacing: -0.6px; }
.feature-copy p { color: var(--muted); margin-top: 12px; font-size: 16px; }
.feature-copy ul { margin-top: 18px; list-style: none; }
.feature-copy li {
  color: var(--muted-fg);
  font-size: 15px;
  padding: 7px 0 7px 26px;
  position: relative;
}
.feature-copy li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* ---------- Feature cards ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 18px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 24px;
  transition: border-color 0.2s, transform 0.2s;
}
.card:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.card .icon {
  width: 42px; height: 42px;
  border-radius: 11px;
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
}
.card h3 { font-size: 16.5px; font-weight: 700; letter-spacing: -0.2px; }
.card p { color: var(--muted); font-size: 14px; margin-top: 8px; line-height: 1.55; }

/* ---------- CTA band ---------- */
.cta-band {
  border: 1px solid var(--border);
  border-radius: 24px;
  background:
    radial-gradient(600px 220px at 50% 0%, var(--accent-soft), transparent 70%),
    var(--bg-elev);
  text-align: center;
  padding: 64px 28px;
}
.cta-band h2 { font-size: clamp(24px, 4vw, 34px); font-weight: 780; letter-spacing: -0.8px; }
.cta-band p { color: var(--muted); margin: 12px auto 30px; max-width: 520px; }

/* ---------- Legal / prose pages ---------- */
.legal { padding: 64px 0 80px; }
.legal .container { max-width: 800px; }
.legal h1 { font-size: clamp(30px, 5vw, 40px); font-weight: 800; letter-spacing: -1px; }
.legal .updated { color: var(--muted); font-size: 14px; margin-top: 10px; }
.legal h2 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.3px;
  margin: 42px 0 12px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.legal h2:first-of-type { border-top: 0; padding-top: 0; margin-top: 36px; }
.legal p, .legal li { color: var(--muted-fg); font-size: 15.5px; }
.legal p { margin: 10px 0; }
.legal ul { margin: 10px 0 10px 22px; }
.legal li { margin: 6px 0; }
.legal strong { color: var(--fg); }
.legal .contact-card {
  margin-top: 40px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
}

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border); padding: 40px 0 48px; margin-top: 40px; }
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.footer .brand { font-size: 15px; }
.footer nav { display: flex; gap: 22px; flex-wrap: wrap; }
.footer nav a { color: var(--muted); font-size: 13.5px; }
.footer nav a:hover { color: var(--fg); text-decoration: none; }
.footer .fineprint { width: 100%; color: var(--muted); font-size: 12.5px; margin-top: 6px; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .feature-split, .feature-split.reverse { grid-template-columns: 1fr; gap: 30px; }
  .feature-split .shot-frame { order: -1; max-width: 300px; }
  .nav-links a:not(.nav-cta) { display: none; }
  .hero { padding: 80px 0 50px; }
  .shots-grid { gap: 26px 16px; }
}