:root {
  --paper: #faf6ef;
  --surface: #ffffff;
  --ink: #221c17;
  --muted: #6b6158;
  --line: rgba(34, 28, 23, 0.12);
  --brand: #7a2e1f;
  --chip: #efe7da;
  --radius: 14px;
  --shadow: 0 8px 24px rgba(34, 28, 23, 0.08);
  --serif: "Libre Baskerville", Georgia, "Times New Roman", serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #17130f;
    --surface: #211b16;
    --ink: #f0e9df;
    --muted: #b3a798;
    --line: rgba(240, 233, 223, 0.12);
    --brand: #e0876f;
    --chip: #2c241d;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  }
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased; }
body.drawer-open { overflow: hidden; }
h1, h2, h3 { font-family: var(--serif); font-weight: 700; line-height: 1.2; margin: 0; }
p { margin: 0; }
button, input, select { font: inherit; color: inherit; }
.wrap { width: min(1180px, 100% - 40px); margin-inline: auto; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--brand); color: #fff; padding: 8px 14px; border-radius: 8px; }
.skip:focus { left: 12px; }
:focus-visible { outline: 3px solid var(--brand); outline-offset: 2px; border-radius: 6px; }

/* Masthead */
.masthead { position: sticky; top: 0; z-index: 30; background: color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.masthead-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; height: 64px; }
.logo { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-family: var(--serif); font-weight: 700; font-size: 1.2rem; }
.logo svg { width: 28px; height: 28px; color: var(--brand); }
.list-toggle { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--line); background: var(--surface); border-radius: 999px; padding: 8px 14px; cursor: pointer; font-weight: 500; }
.list-toggle:hover { border-color: var(--brand); }
.badge { min-width: 22px; height: 22px; padding: 0 6px; border-radius: 999px; background: var(--brand); color: var(--paper); font-size: 0.8rem; font-weight: 600; display: inline-grid; place-items: center; }

/* Intro */
.intro { padding: clamp(48px, 8vw, 96px) 0 clamp(28px, 4vw, 44px); }
.kicker { text-transform: uppercase; letter-spacing: 0.16em; font-size: 0.75rem; font-weight: 600; color: var(--brand); margin-bottom: 14px; }
.intro h1 { font-size: clamp(2.2rem, 5.5vw, 3.8rem); max-width: 820px; }
.intro h1 em { color: var(--brand); font-style: italic; font-weight: 400; }
.lead { margin-top: 18px; max-width: 640px; color: var(--muted); font-size: 1.12rem; }

/* Controls */
.controls { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.search { flex: 1 1 320px; display: flex; align-items: center; gap: 10px; background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 0 16px; }
.search:focus-within { border-color: var(--brand); }
.search svg { width: 18px; height: 18px; fill: none; stroke: var(--muted); stroke-width: 2; stroke-linecap: round; flex: none; }
.search input { flex: 1; border: 0; background: transparent; padding: 12px 0; outline: none; min-width: 0; }
.sort { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: 0.92rem; }
.sort select { background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 10px 14px; cursor: pointer; }
.genres { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 8px; }
.chip { border: 1px solid transparent; background: var(--chip); border-radius: 999px; padding: 7px 14px; cursor: pointer; font-size: 0.9rem; font-weight: 500; }
.chip:hover { border-color: var(--line); }
.chip[aria-pressed="true"] { background: var(--brand); color: var(--paper); }
.result-count { color: var(--muted); font-size: 0.9rem; margin: 12px 0 18px; }

/* Grid */
.grid { list-style: none; margin: 0 0 72px; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px; }
.book { display: grid; grid-template-columns: 104px 1fr; gap: 18px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.cover {
  --cover: #7a2e1f;
  aspect-ratio: 2 / 3; border-radius: 4px 8px 8px 4px; padding: 12px 10px;
  background: linear-gradient(90deg, rgba(0,0,0,0.25) 0 6px, transparent 6px), linear-gradient(160deg, color-mix(in srgb, var(--cover) 80%, #fff), var(--cover));
  color: #fff; display: flex; flex-direction: column; justify-content: space-between;
  box-shadow: 0 6px 14px rgba(0,0,0,0.18);
}
.cover-title { font-family: var(--serif); font-size: 0.78rem; font-weight: 700; line-height: 1.25; padding-left: 4px; }
.cover-author { font-size: 0.62rem; opacity: 0.85; padding-left: 4px; }
.book-body { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.meta { display: flex; gap: 10px; align-items: center; font-size: 0.78rem; }
.genre { color: var(--brand); font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; }
.year { color: var(--muted); }
.title { font-size: 1.12rem; }
.author { color: var(--muted); font-size: 0.92rem; }
.about { color: var(--ink); font-size: 0.93rem; opacity: 0.9; flex: 1; }
.save { align-self: flex-start; margin-top: 6px; border: 1px solid var(--brand); color: var(--brand); background: transparent; border-radius: 999px; padding: 7px 14px; cursor: pointer; font-size: 0.88rem; font-weight: 600; }
.save:hover { background: color-mix(in srgb, var(--brand) 10%, transparent); }
.save.is-saved { background: var(--brand); color: var(--paper); }
.empty { color: var(--muted); padding: 24px 0 72px; }
@media (max-width: 420px) {
  .grid { grid-template-columns: 1fr; }
  .book { grid-template-columns: 84px 1fr; gap: 14px; padding: 14px; }
}

/* Reading list drawer */
.scrim { position: fixed; inset: 0; background: rgba(0,0,0,0.35); z-index: 40; }
.drawer { position: fixed; top: 0; right: 0; bottom: 0; width: min(380px, 100%); background: var(--surface); z-index: 50; padding: 22px; overflow-y: auto; box-shadow: -10px 0 30px rgba(0,0,0,0.15); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; }
.drawer h2 { font-size: 1.3rem; }
.close { border: 0; background: var(--chip); width: 36px; height: 36px; border-radius: 50%; font-size: 1.4rem; line-height: 1; cursor: pointer; }
.drawer-note { color: var(--muted); font-size: 0.85rem; margin: 6px 0 16px; }
.saved { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.saved-item { display: flex; align-items: center; justify-content: space-between; gap: 12px; border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; }
.saved-item strong { display: block; font-family: var(--serif); font-size: 0.95rem; }
.saved-item span { color: var(--muted); font-size: 0.85rem; }
.remove { border: 0; background: transparent; color: var(--brand); cursor: pointer; font-size: 0.85rem; font-weight: 600; }
.drawer .empty { padding: 8px 0; }

/* Footer */
.footer { border-top: 1px solid var(--line); padding: 28px 0 36px; color: var(--muted); font-size: 0.9rem; }