/* libella.girishdevstack.com — Libella Abyss palette (see ../README.md) */
:root {
  --bg: #0a0e1a;
  --bg-2: #0d1222;
  --card: #111830;
  --line: #1c2540;
  --line-2: #2a365a;
  --text: #dce3f5;
  --text-2: #a9b4d3;
  --muted: #7b87aa;
  --accent: #4d7cff;
  --accent-hi: #7a9dff;
  --ai: #ffb38a;
  --ok: #3dd68c;
  --err: #ff6b6b;
  --radius: 14px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 "Onest", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: var(--accent-hi); text-decoration: none; }
a:hover { text-decoration: underline; }
kbd {
  font: 600 0.78em "JetBrains Mono", monospace;
  padding: 1px 6px;
  border: 1px solid var(--line-2);
  border-bottom-width: 2px;
  border-radius: 5px;
  background: var(--card);
  color: var(--text-2);
  white-space: nowrap;
}
code { font: 0.9em "JetBrains Mono", monospace; }

.top {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px max(16px, calc((100% - 1160px) / 2));
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 21px; letter-spacing: -0.03em; color: var(--text); }
.brand:hover { text-decoration: none; }
.top nav { display: flex; align-items: center; gap: 22px; font-size: 14.5px; }
.top nav a:not(.btn) { color: var(--text-2); }
.top nav a:not(.btn):hover { color: var(--text); text-decoration: none; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 46px;
  padding: 0 22px;
  border-radius: 11px;
  font-weight: 650;
  border: 1px solid var(--line-2);
  color: var(--text);
  background: var(--card);
  transition: transform 0.12s, background 0.15s, border-color 0.15s;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; box-shadow: 0 10px 30px rgba(77, 124, 255, 0.35); }
.btn.primary:hover { background: var(--accent-hi); }
.btn.ghost { background: transparent; }
.btn.small { height: 34px; padding: 0 14px; font-size: 14px; border-radius: 9px; }

main > section { padding: 0 max(16px, calc((100% - 1160px) / 2)); }

.hero {
  text-align: center;
  padding-top: 72px !important;
  background: radial-gradient(900px 480px at 50% -80px, rgba(77, 124, 255, 0.22), transparent 70%),
    radial-gradient(600px 300px at 85% 40%, rgba(255, 179, 138, 0.08), transparent 70%);
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  padding: 5px 12px;
  border: 1px solid var(--line-2);
  border-radius: 99px;
  font-size: 13.5px;
  color: var(--text-2);
  background: var(--bg-2);
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }
.ai-eyebrow .dot { background: var(--ai); box-shadow: 0 0 10px var(--ai); }
h1 {
  margin: 0;
  font-size: clamp(38px, 7vw, 76px);
  line-height: 1.02;
  letter-spacing: -0.045em;
  font-weight: 800;
  background: linear-gradient(180deg, #fff 30%, #a9b4d3);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead { max-width: 640px; margin: 22px auto 0; font-size: clamp(17px, 2.2vw, 20px); color: var(--text-2); }
.lead b { color: var(--ai); font-weight: 650; }
.cta { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; margin-top: 30px; }
.note { color: var(--muted); font-size: 14px; margin: 14px 0 0; }
.shot { margin: 54px auto 0; max-width: 1160px; }
.shot img {
  width: 100%;
  height: auto;
  border-radius: 16px;
  border: 1px solid var(--line-2);
  box-shadow: 0 40px 120px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.03), 0 -20px 80px rgba(77, 124, 255, 0.15);
  display: block;
}

h2 { font-size: clamp(28px, 4.2vw, 44px); line-height: 1.1; letter-spacing: -0.035em; margin: 0 0 12px; }
.sub { color: var(--text-2); max-width: 640px; margin: 0 0 34px; }

.features { padding-top: 110px !important; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.grid article {
  background: linear-gradient(180deg, var(--card), var(--bg-2));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}
.grid h3 { margin: 0 0 8px; font-size: 18px; letter-spacing: -0.01em; }
.grid p { margin: 0; color: var(--text-2); font-size: 15px; }

.ai {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
  padding-top: 120px !important;
}
.ai ul { padding-left: 20px; color: var(--text-2); }
.ai li { margin: 10px 0; }
.ai li b { color: var(--text); }
.fine { color: var(--muted); font-size: 14px; }
.ai-card {
  border: 1px solid color-mix(in srgb, var(--ai) 35%, var(--line));
  background: linear-gradient(160deg, rgba(255, 179, 138, 0.08), transparent 60%), var(--bg-2);
  border-radius: 18px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
}
.msg.user { align-self: flex-end; max-width: 85%; background: rgba(77, 124, 255, 0.16); border: 1px solid rgba(77, 124, 255, 0.4); padding: 10px 14px; border-radius: 14px 14px 4px 14px; font-size: 15px; }
.msg.bot { display: flex; flex-direction: column; gap: 10px; }
.tool { border: 1px solid var(--line-2); border-radius: 10px; padding: 9px 12px; font-size: 14px; color: var(--text-2); background: var(--card); }
.tool.done::before { content: "✓ "; color: var(--ok); }
.tool.pending { border-color: var(--ai); box-shadow: 0 0 0 3px rgba(255, 179, 138, 0.12); }
.tool.pending span { float: right; color: var(--ai); font-size: 12.5px; }
.tool pre { margin: 10px 0 8px; font: 12.5px/1.6 "JetBrains Mono", monospace; white-space: pre-wrap; }
.tool .del { color: var(--err); }
.tool .add { color: var(--ok); }
.tool .actions { display: flex; justify-content: flex-end; gap: 8px; }
.tool .b { padding: 4px 12px; border-radius: 7px; border: 1px solid var(--line-2); font-size: 13px; }
.tool .b.ok { background: var(--ai); border-color: var(--ai); color: #2a1408; font-weight: 650; }

.download { padding-top: 120px !important; text-align: center; }
.download .sub { margin-left: auto; margin-right: auto; }
.dl-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; text-align: left; }
.dl {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 20px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--line-2);
  background: var(--card);
  color: var(--text);
  transition: border-color 0.15s, transform 0.12s;
}
.dl:hover { text-decoration: none; border-color: var(--accent); transform: translateY(-2px); }
.dl b { font-size: 18px; }
.dl span { color: var(--text-2); font-size: 14px; }
.dl.mine { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(77, 124, 255, 0.18); }
.dl.soon { opacity: 0.55; pointer-events: none; }
.mac-help { max-width: 640px; margin: 22px auto 0; text-align: left; color: var(--text-2); }
.mac-help summary { cursor: pointer; color: var(--text); }

.faq { padding-top: 110px !important; padding-bottom: 40px !important; max-width: 820px; margin: 0 auto; }
.faq details { border-bottom: 1px solid var(--line); padding: 16px 0; }
.faq summary { cursor: pointer; font-weight: 650; font-size: 17px; }
.faq p { color: var(--text-2); margin: 10px 0 0; }

footer { border-top: 1px solid var(--line); margin-top: 60px; padding: 34px 16px 50px; text-align: center; color: var(--muted); font-size: 14px; }
footer .brand { justify-content: center; font-size: 17px; margin-bottom: 8px; }

@media (max-width: 860px) {
  .ai { grid-template-columns: 1fr; gap: 28px; }
  .top nav a:not(.btn) { display: none; }
  .hero { padding-top: 48px !important; }
}