:root {
  --bg: #0f0e0c; --panel: #1a1814; --line: #2c281f; --fg: #f2ede3; --muted: #a99e89;
  --accent: #d6a45a; --accent2: #e2c391; --chip: #2a2519;
}
* { box-sizing: border-box; }
body { margin: 0; background: radial-gradient(900px 480px at 78% -10%, #211c14 0%, var(--bg) 60%);
  color: var(--fg); font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased; }
.hero { text-align: center; padding: 54px 20px 26px; max-width: 760px; margin: 0 auto; }
.logo { font-size: 38px; }
.hero h1 { font-size: 42px; margin: 6px 0 4px; letter-spacing: -.03em;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; background-clip: text; color: transparent; }
.sub { color: var(--fg); font-size: 17px; margin: 0 0 14px; }
.lead { color: var(--muted); font-size: 15.5px; line-height: 1.6; }
.src { display: inline-block; margin-top: 14px; color: var(--accent); text-decoration: none; font-weight: 600; }
main { max-width: 880px; margin: 0 auto; padding: 0 18px 60px; display: grid; gap: 20px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 22px; }
.card h2 { margin: 0 0 12px; font-size: 19px; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.chip { background: var(--accent); color: #2a1c08; font-size: 13px; font-weight: 600; padding: 5px 11px; border-radius: 999px; cursor: pointer; }
.chip--empty { background: var(--chip); color: var(--muted); cursor: default; font-weight: 400; }

.filter { width: 100%; font: inherit; font-size: 14px; padding: 10px 12px; border-radius: 10px;
  background: #0e0d0a; color: var(--fg); border: 1px solid var(--line); margin-bottom: 14px; }
.filter:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

.picker { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 8px; max-height: 340px; overflow-y: auto; }
.pick { text-align: left; font: inherit; cursor: pointer; background: #14120e; color: var(--fg);
  border: 1px solid var(--line); border-radius: 10px; padding: 9px 11px; font-size: 13.5px; line-height: 1.3; }
.pick span { display: block; color: var(--muted); font-size: 11.5px; margin-top: 2px; }
.pick:hover { border-color: #463c28; }
.pick.on { background: var(--accent); color: #2a1c08; border-color: transparent; }
.pick.on span { color: #5a4318; }

.recs { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.book { background: #14120e; border: 1px solid var(--line); border-radius: 12px; padding: 14px; }
.book__title { font-weight: 650; font-size: 15px; }
.book__author { color: var(--muted); font-size: 13px; margin: 2px 0 8px; }
.book__genres { display: flex; flex-wrap: wrap; gap: 5px; }
.book__genres span { background: var(--chip); color: var(--accent2); font-size: 11px; padding: 2px 8px; border-radius: 999px; }
.book__why { color: var(--muted); font-size: 12px; margin-top: 10px; line-height: 1.45; border-top: 1px solid var(--line); padding-top: 8px; }
.book__why em { color: var(--accent2); font-style: normal; }
.empty { color: var(--muted); }

.code { margin: 12px 0 0; padding: 14px; background: #0b0a07; border: 1px solid var(--line); border-radius: 10px;
  overflow-x: auto; font-family: ui-monospace, "SF Mono", Consolas, monospace; font-size: 12.5px; line-height: 1.6; color: #d6cdbb; }
.features { color: var(--muted); font-size: 14px; line-height: 1.8; margin: 0; padding-left: 18px; }
.features strong { color: var(--fg); } .features code, .features em { color: var(--accent2); font-style: normal; }
footer { text-align: center; color: var(--muted); font-size: 13px; padding: 26px; }