/* Könyvmonitor – Material 3 stílusú felület (a Google Stitch design alapján). */

:root {
  --primary: #004ac6;
  --primary-container: #2563eb;
  --on-primary: #ffffff;

  --background: #f7f9fb;
  --surface: #ffffff;          /* surface-container-lowest – kártyák */
  --surface-low: #f2f4f6;      /* inputok, halvány gombok */
  --surface-c: #eceef0;        /* surface-container */
  --surface-high: #e6e8ea;     /* hover, borítóhely */

  --on-surface: #191c1e;
  --on-variant: #434655;       /* másodlagos szöveg */
  --outline: #c3c6d7;          /* keretek */

  --secondary-container: #d5e3fc;
  --on-secondary-container: #3a485b;

  --error: #ba1a1a;
  --error-container: #ffdad6;
  --on-error-container: #93000a;
  --ok: #146c2e;
  --ok-container: #c6f0cd;

  --r-card: 12px;
  --r-input: 12px;
  --r-chip: 999px;

  --sidebar-w: 256px;
  --topbar-h: 64px;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  background: var(--background);
  color: var(--on-surface);
  -webkit-font-smoothing: antialiased;
  line-height: 1.45;
}

a { color: var(--primary); text-decoration: none; }

.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  font-size: 20px;
  line-height: 1;
  vertical-align: middle;
}

/* ---------- Elrendezés ---------- */

.sidebar {
  position: fixed;
  left: 0; top: 0;
  width: var(--sidebar-w);
  height: 100%;
  background: var(--background);
  border-right: 1px solid var(--outline);
  display: flex;
  flex-direction: column;
  padding: 16px 0;
  z-index: 40;
}
.sidebar .brand { padding: 8px 24px 24px; }
.sidebar .brand h1 {
  margin: 0;
  font-size: 20px; font-weight: 800;
  color: var(--primary);
}
.sidebar .brand p { margin: 2px 0 0; font-size: 12px; color: var(--on-variant); opacity: .8; }

.sidebar nav { flex: 1; padding: 0 8px; }
.nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px; margin: 0 8px 4px;
  border-radius: var(--r-card);
  color: var(--on-variant);
  font-size: 13px; font-weight: 600;
}
.nav-item:hover { background: var(--surface-high); }
.nav-item.active { background: var(--secondary-container); color: var(--on-secondary-container); }

.sidebar .side-foot { padding: 0 16px; margin-top: auto; }
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  width: 100%;
  padding: 12px 16px;
  background: var(--primary); color: var(--on-primary);
  border: none; border-radius: var(--r-card);
  font-size: 13px; font-weight: 700; cursor: pointer;
  font-family: inherit;
}
.btn-primary:hover { opacity: .92; }

.topbar {
  position: fixed; top: 0; right: 0; left: var(--sidebar-w);
  height: var(--topbar-h);
  background: var(--surface);
  border-bottom: 1px solid var(--outline);
  display: flex; align-items: center; gap: 16px;
  padding: 0 24px;
  z-index: 30;
}
.topbar .menu-btn { display: none; }
.search {
  position: relative; flex: 1; max-width: 440px;
}
.search .material-symbols-outlined {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  color: var(--on-variant);
}
.search input {
  width: 100%;
  background: var(--surface-low);
  border: none; border-radius: var(--r-chip);
  padding: 9px 16px 9px 40px;
  font-size: 14px; font-family: inherit;
  outline: none;
}
.search input:focus { box-shadow: 0 0 0 2px var(--primary); }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 8px; }

.app-main {
  margin-left: var(--sidebar-w);
  padding-top: var(--topbar-h);
  min-height: 100vh;
}
.canvas { max-width: 1120px; margin: 0 auto; padding: 24px; }

/* ---------- Oldalfejléc ---------- */

.page-head {
  display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between;
  gap: 16px; margin-bottom: 24px;
}
.page-head h2 { margin: 0; font-size: 30px; font-weight: 700; letter-spacing: -.02em; }
.page-head .sub { margin: 4px 0 0; color: var(--on-variant); font-size: 14px; }
.head-actions { display: flex; gap: 8px; align-items: center; }

.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px;
  background: var(--surface-c); color: var(--on-surface);
  border: 1px solid var(--outline); border-radius: 8px;
  font-size: 12px; font-weight: 600; cursor: pointer; font-family: inherit;
}
.btn:hover { background: var(--surface-high); }
.btn.accent { background: var(--primary); color: var(--on-primary); border-color: var(--primary); }

select.btn { padding-right: 28px; }

/* ---------- Kategória-facet ---------- */

.facet { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 20px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--surface); border: 1px solid var(--outline);
  color: var(--on-surface); border-radius: var(--r-chip);
  padding: 5px 12px; font-size: 13px; font-weight: 500;
}
.chip:hover { border-color: var(--primary); }
.chip.active { background: var(--primary); color: var(--on-primary); border-color: var(--primary); }
.chip b { font-weight: 700; opacity: .6; font-size: 12px; }
.chip.active b { opacity: .85; }
.facet-more { width: 100%; margin-top: 4px; }
.facet-more > summary { cursor: pointer; color: var(--primary); font-size: 13px; padding: 4px; list-style: none; }
.facet-more[open] > summary { margin-bottom: 8px; }
.facet-more .more-wrap { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------- Kártyarács ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--outline);
  border-radius: var(--r-card);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: border-color .15s, box-shadow .15s;
}
.card:hover { border-color: var(--primary); box-shadow: 0 1px 4px rgba(0,0,0,.06); }
.card .cover {
  position: relative;
  aspect-ratio: 3 / 4;
  background: var(--surface-c);
  overflow: hidden;
  display: block;
}
.card .cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.card:hover .cover img { transform: scale(1.05); }
.card .no-cover { display: flex; align-items: center; justify-content: center; height: 100%; color: var(--on-variant); font-size: 13px; }
.badge {
  position: absolute; top: 8px; left: 8px;
  background: var(--primary); color: #fff;
  font-size: 11px; font-weight: 700; letter-spacing: .04em;
  padding: 2px 8px; border-radius: var(--r-chip);
}
.card-body { padding: 14px; display: flex; flex-direction: column; flex: 1; }
.card-body h3 { margin: 0 0 4px; font-size: 16px; font-weight: 700; line-height: 1.3; }
.card-body h3 a { color: var(--on-surface); }
.card-body .author { margin: 0 0 8px; color: var(--on-variant); font-size: 13px; }
.card-body .price { margin: 0 0 8px; font-weight: 700; font-size: 14px; }
.editions {
  font-weight: 600; font-size: 11px;
  background: var(--surface-c); color: var(--on-variant);
  padding: 1px 7px; border-radius: var(--r-chip); margin-left: 4px;
  vertical-align: middle;
}
.cat-tags { display: flex; flex-wrap: wrap; gap: 4px; margin: 0 0 10px; }
.tag {
  display: inline-block;
  background: var(--secondary-container); color: var(--on-secondary-container);
  border-radius: var(--r-chip); padding: 1px 9px;
  font-size: 12px; font-weight: 600;
}
.tag:hover { filter: brightness(.97); }
.card-foot { margin-top: auto; }
.btn-detail {
  display: block; width: 100%; text-align: center;
  padding: 8px; border-radius: 8px;
  background: var(--surface-low); color: var(--primary);
  font-size: 12px; font-weight: 700; border: none; cursor: pointer;
  font-family: inherit;
}
.btn-detail:hover { background: var(--primary); color: var(--on-primary); }
.meta-row { display: flex; align-items: center; gap: 8px; font-size: 12px; margin: 0 0 8px; flex-wrap: wrap; }
.source-tag { background: var(--surface-c); color: var(--on-variant); padding: 1px 8px; border-radius: var(--r-chip); font-size: 12px; }
.muted { color: var(--on-variant); }
.empty { color: var(--on-variant); padding: 48px; text-align: center; }

/* ---------- Futások ---------- */
.runs { margin-top: 28px; background: var(--surface); border: 1px solid var(--outline); border-radius: var(--r-card); padding: 10px 16px; }
.runs summary { cursor: pointer; font-weight: 700; font-size: 14px; }
.runs ul { list-style: none; padding: 0; margin: 10px 0 4px; }
.runs li { padding: 8px 0; border-top: 1px solid var(--outline); font-size: 13px; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.run-status { font-size: 11px; padding: 1px 8px; border-radius: var(--r-chip); text-transform: uppercase; font-weight: 700; }
.run-ok { background: var(--ok-container); color: var(--ok); }
.run-error { background: var(--error-container); color: var(--on-error-container); }
.run-running { background: var(--secondary-container); color: var(--on-secondary-container); }

/* ---------- Részletek oldal ---------- */
.back { display: inline-flex; align-items: center; gap: 4px; margin-bottom: 16px; font-weight: 600; }
.detail {
  display: grid; grid-template-columns: 280px 1fr; gap: 32px;
  background: var(--surface); border: 1px solid var(--outline);
  border-radius: var(--r-card); padding: 28px;
}
.detail-cover img { width: 100%; border-radius: var(--r-card); }
.detail-cover .no-cover { aspect-ratio: 3/4; background: var(--surface-c); border-radius: var(--r-card); display: flex; align-items: center; justify-content: center; color: var(--on-variant); }
.detail-info h1 { margin: 0 0 8px; font-size: 28px; font-weight: 700; letter-spacing: -.01em; }
.detail-info .author { color: var(--on-variant); font-size: 16px; margin: 0 0 12px; }
.detail-info .price { font-weight: 700; font-size: 18px; margin: 0 0 12px; }
.detail .lead { font-size: 16px; }
.detail .description { white-space: pre-wrap; margin: 16px 0; color: var(--on-surface); }

/* ---------- Reszponzív ---------- */
@media (max-width: 1023px) {
  .sidebar { display: none; }
  .topbar { left: 0; }
  .topbar .menu-btn { display: inline-flex; }
  .topbar .brand-sm { font-weight: 800; color: var(--primary); font-size: 18px; }
  .app-main { margin-left: 0; }
}
@media (max-width: 640px) {
  .detail { grid-template-columns: 1fr; }
  .page-head h2 { font-size: 24px; }
}