/* ============================================================
   Model Railway Society Library
   Classic heritage aesthetic — dark green, brass, oxblood
   ============================================================ */

:root {
  /* Default theme: Bottle Green */
  --paper:        #f4ead7;     /* warm cream page */
  --paper-deep:   #ecdfc2;     /* deeper paper for insets */
  --ink:          #1b1d15;     /* near-black ink */
  --ink-soft:     #3a3c31;
  --ink-faded:    #6c6b5d;
  --rule:         #2b2d24;
  --rule-soft:    #c9b98a;     /* brass-tinted hairline */
  --primary:      #1f3a2b;     /* bottle green */
  --primary-ink:  #f5ecd3;
  --primary-deep: #132318;
  --accent:       #a8843d;     /* brass */
  --accent-deep:  #7a5f27;
  --danger:       #7a2a20;     /* oxblood */
  --chip-bg:      #e6d8b4;
  --chip-ink:     #2b2d24;
  --success:      #315c3e;

  --serif-display: 'Playfair Display', 'EB Garamond', Georgia, serif;
  --serif-body:    'Source Serif 4', 'Source Serif Pro', Georgia, serif;
  --mono:          'JetBrains Mono', 'IBM Plex Mono', ui-monospace, monospace;
}

/* Theme: Oxblood */
[data-theme="oxblood"] {
  --paper:        #f2e8d8;
  --paper-deep:   #e9dbc0;
  --ink:          #1d1713;
  --ink-soft:     #3e332c;
  --ink-faded:    #6f6256;
  --rule:         #2c221b;
  --rule-soft:    #d1bb8d;
  --primary:      #5a1a19;
  --primary-ink:  #f5ecd3;
  --primary-deep: #3a0f0e;
  --accent:       #b38a3e;
  --accent-deep:  #8a6522;
  --danger:       #7a2a20;
  --chip-bg:      #e8d7b3;
  --chip-ink:     #2b2019;
  --success:      #4a5a2a;
}

/* Theme: Midnight Blue */
[data-theme="midnight"] {
  --paper:        #eee4cf;
  --paper-deep:   #e4d6b8;
  --ink:          #13171e;
  --ink-soft:     #2d3340;
  --ink-faded:    #666d7a;
  --rule:         #1b2230;
  --rule-soft:    #b8a876;
  --primary:      #1a2a4a;
  --primary-ink:  #f3e9cf;
  --primary-deep: #0d1830;
  --accent:       #b89149;
  --accent-deep:  #8c6c30;
  --danger:       #7a2a20;
  --chip-bg:      #e1d2af;
  --chip-ink:     #232a38;
  --success:      #2d4a58;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

/* ----------------- subtle paper texture via SVG fallback ------------- */
body {
  background-image:
    repeating-linear-gradient(0deg, rgba(0,0,0,0.012) 0 1px, transparent 1px 3px),
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(168,132,61,0.08), transparent 60%);
}

a { color: inherit; }

/* ==================== Header / masthead ==================== */

.masthead {
  background: var(--primary);
  color: var(--primary-ink);
  border-bottom: 3px double var(--accent);
}
.masthead-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.masthead .crest {
  font-family: var(--serif-display);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: 0.02em;
  line-height: 1.15;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 14px;
}
.masthead .crest .monogram {
  width: 38px; height: 38px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  display: grid; place-items: center;
  font-family: var(--serif-display);
  font-weight: 700;
  font-size: 14px;
  color: var(--accent);
  letter-spacing: 0.02em;
}
.masthead .crest .society-line {
  font-size: 10.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0.78;
  font-family: var(--mono);
  font-weight: 400;
  margin-top: 2px;
}

.nav {
  margin-left: auto;
  display: flex;
  gap: 22px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.nav a {
  text-decoration: none;
  padding: 8px 2px;
  border-bottom: 1px solid transparent;
  cursor: pointer;
  opacity: 0.82;
  transition: opacity .15s, border-color .15s;
}
.nav a:hover { opacity: 1; border-bottom-color: var(--accent); }
.nav a.active { opacity: 1; border-bottom-color: var(--accent); }

.nav-divider {
  width: 1px; height: 22px;
  background: var(--accent);
  opacity: 0.35;
}

.acct-chip {
  display: flex; align-items: center; gap: 10px;
  border: 1px solid var(--accent);
  padding: 6px 12px;
  border-radius: 2px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  cursor: pointer;
  text-transform: uppercase;
}
.acct-chip .dot {
  width:6px; height:6px; background: var(--accent); border-radius:50%;
}
.acct-chip:hover { background: rgba(168,132,61,0.1); }

/* ==================== Hero search (homepage) ==================== */

.hero {
  background: var(--primary);
  color: var(--primary-ink);
  padding: 72px 28px 90px;
  position: relative;
  overflow: hidden;
}
.hero-inner {
  max-width: 980px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 2;
}
.hero-kicker {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.hero-rule {
  display: flex; align-items: center; justify-content: center;
  gap: 14px;
  margin-bottom: 18px;
  color: var(--accent);
  opacity: 0.7;
}
.hero-rule .line { width: 90px; height: 1px; background: currentColor; }
.hero-rule .diamond { width: 8px; height: 8px; background: currentColor; transform: rotate(45deg); }

.hero h1 {
  font-family: var(--serif-display);
  font-weight: 500;
  font-size: 58px;
  line-height: 1.08;
  margin: 0 0 20px;
  letter-spacing: -0.01em;
}
.hero h1 em {
  font-style: italic;
  color: var(--accent);
  font-weight: 500;
}
.hero-sub {
  font-family: var(--serif-body);
  font-size: 18px;
  max-width: 640px;
  margin: 0 auto 40px;
  opacity: 0.82;
  font-style: italic;
}

.searchbox {
  background: var(--paper);
  color: var(--ink);
  border: 2px solid var(--accent);
  box-shadow: 0 20px 40px rgba(0,0,0,0.28), 0 0 0 6px rgba(168,132,61,0.12);
  display: flex;
  align-items: stretch;
  max-width: 780px;
  margin: 0 auto;
  border-radius: 2px;
}
.searchbox input {
  flex: 1;
  border: 0;
  background: transparent;
  padding: 22px 26px;
  font-family: var(--serif-body);
  font-size: 20px;
  color: var(--ink);
  outline: none;
}
.searchbox input::placeholder {
  color: var(--ink-faded);
  font-style: italic;
}
.searchbox button {
  border: 0;
  background: var(--primary);
  color: var(--primary-ink);
  padding: 0 32px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  cursor: pointer;
  border-left: 2px solid var(--accent);
  transition: background .15s;
}
.searchbox button:hover { background: var(--primary-deep); }

.hero-hints {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.85;
}
.hero-hints span { opacity: 0.6; }
.hero-hints button {
  background: transparent;
  border: 1px solid rgba(168,132,61,0.4);
  color: inherit;
  font: inherit;
  padding: 5px 11px;
  cursor: pointer;
  letter-spacing: inherit;
  text-transform: inherit;
  border-radius: 2px;
}
.hero-hints button:hover {
  background: rgba(168,132,61,0.12);
  border-color: var(--accent);
}

.hero-stats {
  position: absolute;
  bottom: 20px;
  left: 0; right: 0;
  display: flex;
  justify-content: center;
  gap: 56px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.7;
  z-index: 2;
}
.hero-stats b {
  font-family: var(--serif-display);
  font-weight: 500;
  font-size: 18px;
  color: var(--primary-ink);
  margin-right: 6px;
  letter-spacing: 0;
}

/* decorative corner ornaments in hero */
.hero::before, .hero::after {
  content: '';
  position: absolute;
  width: 180px; height: 180px;
  border: 1px solid var(--accent);
  opacity: 0.12;
  top: 20px;
}
.hero::before { left: 20px; border-right: none; border-bottom: none; }
.hero::after  { right: 20px; border-left: none; border-bottom: none; }


/* ==================== Sections below hero (browse) ==================== */

.section {
  max-width: 1240px;
  margin: 0 auto;
  padding: 64px 28px;
}
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 10px;
  margin-bottom: 28px;
}
.section-head h2 {
  font-family: var(--serif-display);
  font-weight: 500;
  font-size: 28px;
  margin: 0;
  letter-spacing: -0.005em;
}
.section-head .eyebrow {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-faded);
  display: block;
  margin-bottom: 6px;
}
.section-head .view-all {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-deep);
  text-decoration: none;
  cursor: pointer;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
}

/* Grid of bookplate covers */
.shelf {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 28px 22px;
}
@media (max-width: 1100px){ .shelf { grid-template-columns: repeat(4,1fr);} }

/* Categories row */
.categories {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.cat-tile {
  padding: 26px 22px;
  border-right: 1px solid var(--rule);
  cursor: pointer;
  background: transparent;
  text-align: left;
  font: inherit;
  color: inherit;
  transition: background .15s;
}
.cat-tile:last-child { border-right: none; }
.cat-tile:hover { background: var(--paper-deep); }
.cat-tile .num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--ink-faded);
  display: block;
  margin-bottom: 10px;
}
.cat-tile .name {
  font-family: var(--serif-display);
  font-size: 22px;
  font-weight: 500;
  margin-bottom: 4px;
  display: block;
}
.cat-tile .count {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--accent-deep);
  text-transform: uppercase;
}

/* ==================== Bookplate cover ==================== */

.bookplate {
  aspect-ratio: 2 / 3;
  background: var(--cover-bg, #2b3d2f);
  color: var(--cover-fg, #e9dfbe);
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  position: relative;
  border-radius: 2px;
  box-shadow:
    0 1px 0 rgba(0,0,0,0.2),
    0 10px 22px rgba(0,0,0,0.22),
    inset 0 0 0 1px rgba(255,255,255,0.08);
  transition: transform .18s ease, box-shadow .18s ease;
  overflow: hidden;
  font-family: var(--serif-display);
}
.bookplate::before {
  content: '';
  position: absolute;
  inset: 8px;
  border: 1px solid currentColor;
  opacity: 0.35;
  pointer-events: none;
}
.bookplate::after {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--cover-spine, rgba(0,0,0,0.25));
}
.bookplate:hover {
  transform: translateY(-3px);
  box-shadow:
    0 1px 0 rgba(0,0,0,0.2),
    0 18px 30px rgba(0,0,0,0.28),
    inset 0 0 0 1px rgba(255,255,255,0.12);
}
.bookplate .bp-region {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  opacity: 0.72;
  margin-bottom: 10px;
}
.bookplate .bp-title {
  font-size: 17px;
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.005em;
  margin-top: 6px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-wrap: balance;
}
.bookplate .bp-author {
  font-family: var(--serif-body);
  font-style: italic;
  font-size: 12px;
  opacity: 0.82;
  margin-top: 8px;
  line-height: 1.2;
}
.bookplate .bp-foot {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.7;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid currentColor;
  padding-top: 8px;
}
.bookplate .bp-availability {
  position: absolute;
  top: 14px; right: 14px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #9fd3a1;
  box-shadow: 0 0 0 2px var(--cover-bg);
}
.bookplate.on-loan .bp-availability { background: #d58a8a; }

.book-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.book-row .bp-meta {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faded);
  display: flex;
  justify-content: space-between;
}
.book-row .bp-title-under {
  font-family: var(--serif-display);
  font-size: 14px;
  color: var(--ink);
  line-height: 1.2;
  margin-top: 4px;
}
.book-row .bp-author-under {
  font-family: var(--serif-body);
  font-style: italic;
  font-size: 12px;
  color: var(--ink-faded);
  line-height: 1.2;
}

/* ==================== Search results page ==================== */

.results-layout {
  max-width: 1240px;
  margin: 0 auto;
  padding: 36px 28px 80px;
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 44px;
}

.results-head {
  max-width: 1240px;
  margin: 0 auto;
  padding: 36px 28px 0;
  display: flex;
  align-items: flex-end;
  gap: 16px;
  justify-content: space-between;
}
.results-head .searchbox {
  flex: 1;
  box-shadow: none;
  border-width: 1px;
  margin: 0;
  max-width: none;
}
.results-head .searchbox input { padding: 14px 20px; font-size: 16px; }
.results-head .searchbox button { padding: 0 22px; }

.results-summary {
  margin-top: 20px;
  padding: 0 28px;
  max-width: 1240px;
  margin-left: auto; margin-right: auto;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faded);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.results-summary b {
  font-family: var(--serif-display);
  font-weight: 500;
  font-size: 22px;
  color: var(--ink);
  letter-spacing: 0;
  margin-right: 6px;
}

.results-summary .sort {
  display: flex; gap: 10px; align-items: center;
}
.results-summary .sort select {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: transparent;
  border: 1px solid var(--rule-soft);
  padding: 5px 8px;
  color: var(--ink);
  cursor: pointer;
  border-radius: 2px;
}

/* Facets */
.facets h3 {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-faded);
  margin: 0 0 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--rule-soft);
}
.facets .group { margin-bottom: 28px; }
.facets label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 14px;
  padding: 3px 0;
  cursor: pointer;
}
.facets label input { accent-color: var(--primary); }
.facets label .lbl { flex: 1; }
.facets label .n {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-faded);
  letter-spacing: 0.08em;
}
.facets label:hover .lbl { color: var(--primary); }

.facets .chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 18px;
}
.chip {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--chip-bg);
  color: var(--chip-ink);
  padding: 5px 10px;
  border-radius: 2px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--rule-soft);
}
.chip button {
  background: transparent;
  border: 0;
  color: inherit;
  font: inherit;
  padding: 0;
  cursor: pointer;
  opacity: 0.6;
}
.chip button:hover { opacity: 1; color: var(--danger); }

.facets .clear-all {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  background: transparent;
  border: 0;
  color: var(--danger);
  cursor: pointer;
  padding: 0;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--danger);
}

.results-list {
  display: flex;
  flex-direction: column;
}
.result-row {
  display: grid;
  grid-template-columns: 90px 1fr auto;
  gap: 22px;
  padding: 22px 0;
  border-bottom: 1px solid var(--rule-soft);
  align-items: start;
  cursor: pointer;
}
.result-row:first-child { padding-top: 8px; }
.result-row:hover .r-title { color: var(--primary); }
.result-row .mini-plate {
  aspect-ratio: 2/3;
}
.result-row .r-body { min-width: 0; }
.result-row .r-meta {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faded);
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.result-row .r-title {
  font-family: var(--serif-display);
  font-size: 22px;
  font-weight: 500;
  margin: 6px 0 4px;
  letter-spacing: -0.005em;
  line-height: 1.2;
  text-wrap: balance;
  transition: color .12s;
}
.result-row .r-author {
  font-family: var(--serif-body);
  font-style: italic;
  color: var(--ink-soft);
  margin-bottom: 10px;
}
.result-row .r-blurb {
  color: var(--ink-soft);
  font-size: 14.5px;
  line-height: 1.5;
  max-width: 60ch;
}
.result-row .r-tags {
  margin-top: 10px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.r-tags .tag {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--rule-soft);
  padding: 3px 8px;
  color: var(--ink-soft);
  border-radius: 2px;
}
.result-row .r-right {
  text-align: right;
  min-width: 140px;
}
.result-row .r-avail {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.r-avail.on-shelf  { color: var(--success); }
.r-avail.on-loan   { color: var(--danger); }
.r-avail .dot {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
  background: currentColor;
}
.result-row .r-call {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faded);
  letter-spacing: 0.06em;
}

.empty {
  padding: 60px 0;
  text-align: center;
  color: var(--ink-faded);
  font-family: var(--serif-body);
  font-style: italic;
}

/* ==================== Book detail page ==================== */

.detail {
  max-width: 1100px;
  margin: 0 auto;
  padding: 44px 28px 80px;
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 56px;
}
.detail .big-plate {
  width: 100%;
  aspect-ratio: 2/3;
  box-shadow:
    0 1px 0 rgba(0,0,0,0.2),
    0 22px 42px rgba(0,0,0,0.22),
    inset 0 0 0 1px rgba(255,255,255,0.08);
}
.detail .side-meta {
  margin-top: 22px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.05em;
}
.detail .side-meta dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 14px;
  margin: 0;
  border-top: 1px solid var(--rule-soft);
  padding-top: 14px;
}
.detail .side-meta dt { color: var(--ink-faded); text-transform: uppercase; letter-spacing: 0.16em; font-size: 10px; padding-top:2px; }
.detail .side-meta dd { margin: 0; color: var(--ink); }

.crumb {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faded);
  margin-bottom: 22px;
}
.crumb a { cursor: pointer; }
.crumb a:hover { color: var(--primary); }

.detail-kicker {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-deep);
  margin-bottom: 8px;
}
.detail h1 {
  font-family: var(--serif-display);
  font-size: 46px;
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 0 0 8px;
  text-wrap: balance;
}
.detail .by {
  font-family: var(--serif-body);
  font-style: italic;
  font-size: 19px;
  color: var(--ink-soft);
  margin-bottom: 22px;
}

.availability-card {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 22px;
  border: 1px solid var(--rule);
  background: var(--paper-deep);
  padding: 22px 26px;
  margin: 24px 0 28px;
  border-radius: 2px;
}
.availability-card .avail-title {
  font-family: var(--serif-display);
  font-size: 22px;
  font-weight: 500;
  margin: 0 0 4px;
}
.availability-card .avail-sub {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faded);
}

.btn {
  display: inline-block;
  border: 0;
  padding: 14px 26px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  cursor: pointer;
  border-radius: 2px;
  transition: background .15s, transform .08s;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--primary);
  color: var(--primary-ink);
  border: 1px solid var(--primary);
}
.btn-primary:hover { background: var(--primary-deep); }
.btn-primary:disabled {
  background: var(--ink-faded); border-color: var(--ink-faded); cursor: not-allowed; opacity: 0.7;
}
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--rule);
}
.btn-ghost:hover { background: var(--paper-deep); }
.btn-accent {
  background: var(--accent);
  color: var(--primary-deep);
  border: 1px solid var(--accent);
}
.btn-accent:hover { background: var(--accent-deep); color: var(--paper); }
.btn-danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
}
.btn-danger:hover { background: var(--danger); color: var(--paper); }

.btn-row { display: flex; gap: 10px; flex-wrap: wrap; }

.detail h3 {
  font-family: var(--serif-display);
  font-size: 20px;
  font-weight: 500;
  margin: 32px 0 10px;
  border-bottom: 1px solid var(--rule-soft);
  padding-bottom: 6px;
}
.detail p.blurb {
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-soft);
  max-width: 62ch;
}

/* reviews */
.review {
  border-top: 1px solid var(--rule-soft);
  padding: 18px 0;
}
.review .rv-head {
  display: flex;
  gap: 14px;
  align-items: baseline;
  justify-content: space-between;
}
.review .rv-who {
  font-family: var(--serif-display);
  font-size: 16px;
  font-weight: 500;
}
.review .rv-date {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--ink-faded);
  text-transform: uppercase;
}
.review .stars {
  font-family: var(--mono);
  color: var(--accent);
  letter-spacing: 0.2em;
  margin: 4px 0 8px;
}
.review .rv-body {
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.55;
  max-width: 62ch;
}

/* ==================== Auth (login/signup) ==================== */

.auth-page {
  max-width: 960px;
  margin: 0 auto;
  padding: 60px 28px 100px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.auth-side h1 {
  font-family: var(--serif-display);
  font-size: 44px;
  font-weight: 500;
  line-height: 1.05;
  margin: 20px 0 14px;
  letter-spacing: -0.01em;
}
.auth-side .lede {
  color: var(--ink-soft);
  font-size: 17px;
  font-style: italic;
  line-height: 1.55;
  max-width: 38ch;
}
.auth-side .members-note {
  margin-top: 30px;
  padding: 18px;
  border: 1px solid var(--rule-soft);
  background: var(--paper-deep);
  border-radius: 2px;
  font-size: 14px;
}
.auth-side .members-note .lbl {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-faded);
  display: block;
  margin-bottom: 6px;
}

.auth-card {
  background: var(--paper-deep);
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 38px 36px;
  box-shadow: 0 14px 30px rgba(0,0,0,0.08);
  position: relative;
}
.auth-card::before {
  content: '';
  position: absolute;
  inset: 6px;
  border: 1px solid var(--rule-soft);
  pointer-events: none;
  border-radius: 2px;
}
.auth-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--rule-soft);
  margin-bottom: 26px;
  position: relative;
}
.auth-tabs button {
  flex: 1;
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  padding: 10px 0 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  cursor: pointer;
  color: var(--ink-faded);
}
.auth-tabs button.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}
.form-field {
  margin-bottom: 18px;
  position: relative;
}
.form-field label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-faded);
  display: block;
  margin-bottom: 6px;
}
.form-field input {
  width: 100%;
  border: 1px solid var(--rule-soft);
  background: var(--paper);
  padding: 12px 14px;
  font-family: var(--serif-body);
  font-size: 16px;
  color: var(--ink);
  border-radius: 2px;
  outline: none;
  transition: border-color .12s, box-shadow .12s;
}
.form-field input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(168,132,61,0.18);
}
.form-field .hint {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-faded);
  letter-spacing: 0.08em;
  margin-top: 4px;
}
.form-row {
  display: flex;
  gap: 16px;
}
.form-row .form-field { flex: 1; }

.form-check {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--ink-soft);
  margin-bottom: 22px;
}
.form-check input { accent-color: var(--primary); }

.form-foot {
  margin-top: 18px;
  text-align: center;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--ink-faded);
  text-transform: uppercase;
}
.form-foot a { color: var(--accent-deep); cursor: pointer; border-bottom: 1px solid var(--accent); padding-bottom: 1px; }

.field-error {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--danger);
  margin-top: 4px;
  letter-spacing: 0.04em;
}

/* ==================== Account page ==================== */

.acct-page { max-width: 1240px; margin: 0 auto; padding: 40px 28px 80px; }
.acct-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 3px double var(--accent);
  padding-bottom: 14px;
  margin-bottom: 28px;
}
.acct-head h1 {
  font-family: var(--serif-display);
  font-size: 40px;
  font-weight: 500;
  margin: 0;
  letter-spacing: -0.01em;
}
.acct-head .meta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faded);
}
.acct-tabs {
  display: flex;
  gap: 24px;
  border-bottom: 1px solid var(--rule-soft);
  margin-bottom: 24px;
}
.acct-tabs button {
  background: transparent; border: 0;
  padding: 10px 0 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-faded);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.acct-tabs button.active { color: var(--primary); border-bottom-color: var(--primary); }
.acct-tabs .badge {
  display: inline-block;
  margin-left: 6px;
  background: var(--accent);
  color: var(--primary-deep);
  padding: 1px 6px;
  border-radius: 10px;
  font-size: 10px;
  letter-spacing: 0.08em;
}

table.ledger {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
}
.ledger thead th {
  text-align: left;
  padding: 10px 12px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-faded);
  border-bottom: 1px solid var(--rule);
  background: transparent;
}
.ledger td {
  padding: 14px 12px;
  border-bottom: 1px solid var(--rule-soft);
  vertical-align: top;
}
.ledger tr:hover td { background: var(--paper-deep); }
.ledger .tt {
  font-family: var(--serif-display);
  font-weight: 500;
  font-size: 16px;
  cursor: pointer;
}
.ledger .tt:hover { color: var(--primary); }
.ledger .auth {
  font-family: var(--serif-body);
  font-style: italic;
  font-size: 13px;
  color: var(--ink-faded);
  display: block;
}
.ledger .cl {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faded);
  letter-spacing: 0.04em;
}
.ledger .due {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}
.ledger .due.overdue { color: var(--danger); font-weight: 600; }
.ledger .due.soon { color: #8a6b20; }
.ledger .actions { text-align: right; white-space: nowrap; }
.ledger .actions button {
  margin-left: 8px;
  padding: 8px 14px;
  font-size: 10px;
  letter-spacing: 0.18em;
}

/* ==================== Confirmation page ==================== */

.confirm {
  max-width: 720px;
  margin: 0 auto;
  padding: 80px 28px 100px;
  text-align: center;
}
.confirm .stamp {
  margin: 0 auto 26px;
  width: 180px; height: 180px;
  border: 3px double var(--accent);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--serif-display);
  font-style: italic;
  font-weight: 500;
  font-size: 22px;
  color: var(--accent-deep);
  transform: rotate(-6deg);
  position: relative;
}
.confirm .stamp::before {
  content: '';
  position: absolute;
  inset: 10px;
  border: 1px solid var(--accent);
  border-radius: 50%;
  opacity: 0.5;
}
.confirm .stamp .smallc {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.3em;
  color: var(--ink-faded);
  text-transform: uppercase;
  font-style: normal;
}
.confirm h1 {
  font-family: var(--serif-display);
  font-size: 40px;
  font-weight: 500;
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}
.confirm .lede {
  font-family: var(--serif-body);
  font-style: italic;
  font-size: 18px;
  color: var(--ink-soft);
  max-width: 48ch;
  margin: 0 auto 26px;
}
.confirm .slip {
  text-align: left;
  border: 1px solid var(--rule);
  background: var(--paper-deep);
  padding: 22px 24px;
  margin: 0 auto 26px;
  max-width: 520px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}
.confirm .slip dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 18px;
  margin: 0;
}
.confirm .slip dt {
  color: var(--ink-faded); text-transform: uppercase; letter-spacing: 0.18em; font-size: 10px;
}
.confirm .slip dd { margin: 0; }
.confirm .slip-title {
  font-family: var(--serif-display);
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--ink);
  margin-bottom: 8px;
  text-transform: none;
}
.confirm .slip-title em {
  font-style: italic;
  color: var(--ink-faded);
  font-size: 14px;
  display: block;
  margin-top: 2px;
}

/* ==================== Librarian dashboard ==================== */

.lib-shell {
  max-width: 1400px;
  margin: 0 auto;
  padding: 30px 28px 80px;
}
.lib-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  border-bottom: 3px double var(--accent);
  padding-bottom: 14px;
  margin-bottom: 24px;
}
.lib-head h1 {
  font-family: var(--serif-display);
  font-size: 36px;
  font-weight: 500;
  margin: 0;
}
.lib-head .role {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--accent-deep);
  border: 1px solid var(--accent);
  padding: 5px 10px;
  border-radius: 2px;
}
.lib-kpis {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}
.kpi {
  border: 1px solid var(--rule-soft);
  background: var(--paper-deep);
  padding: 18px 20px;
  border-radius: 2px;
}
.kpi .k-lbl {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-faded);
  margin-bottom: 8px;
}
.kpi .k-num {
  font-family: var(--serif-display);
  font-size: 38px;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1;
}
.kpi .k-sub {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-faded);
  letter-spacing: 0.1em;
  margin-top: 6px;
}

.lib-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 36px;
}

.panel {
  border: 1px solid var(--rule-soft);
  background: var(--paper-deep);
  border-radius: 2px;
}
.panel h3 {
  font-family: var(--serif-display);
  font-size: 22px;
  font-weight: 500;
  margin: 0;
  padding: 16px 20px;
  border-bottom: 1px solid var(--rule-soft);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.panel h3 .eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--ink-faded);
  text-transform: uppercase;
  font-weight: 400;
}

.scan-row {
  padding: 16px 20px;
  display: flex;
  gap: 10px;
  border-bottom: 1px solid var(--rule-soft);
}
.scan-row input {
  flex: 1;
  border: 1px solid var(--rule-soft);
  background: var(--paper);
  padding: 12px 14px;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--ink);
  border-radius: 2px;
  letter-spacing: 0.05em;
}
.scan-row input:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.scan-row .modes {
  display: flex;
  border: 1px solid var(--rule-soft);
  border-radius: 2px;
  overflow: hidden;
}
.scan-row .modes button {
  background: transparent;
  border: 0;
  padding: 10px 14px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-faded);
  cursor: pointer;
}
.scan-row .modes button.active {
  background: var(--primary); color: var(--primary-ink);
}

.lib-table {
  padding: 0;
}
.lib-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.lib-table th {
  text-align: left;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-faded);
  padding: 10px 20px;
  border-bottom: 1px solid var(--rule);
}
.lib-table td { padding: 12px 20px; border-bottom: 1px solid var(--rule-soft); vertical-align: top; }
.lib-table .tt { font-family: var(--serif-display); font-size: 15px; font-weight: 500; }
.lib-table .sub { font-family: var(--mono); font-size: 10.5px; color: var(--ink-faded); letter-spacing: 0.05em; margin-top: 2px;}
.lib-table .pill {
  display: inline-block;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 10px;
  border: 1px solid currentColor;
}
.pill.out { color: var(--danger); }
.pill.in  { color: var(--success); }
.pill.res { color: var(--accent-deep); }
.pill.over { color: var(--danger); background: rgba(122,42,32,0.08);}

/* ==================== Footer ==================== */

.foot {
  background: var(--primary-deep);
  color: var(--primary-ink);
  border-top: 3px double var(--accent);
  padding: 40px 28px;
}
.foot-inner {
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 44px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.78;
}
.foot-inner .col { display: flex; flex-direction: column; gap: 8px; }
.foot-inner h4 {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  color: var(--accent);
  margin: 0 0 8px;
  font-weight: 400;
}
.foot-inner .motto {
  font-family: var(--serif-body);
  font-style: italic;
  font-size: 12px;
  letter-spacing: 0;
  text-transform: none;
  opacity: 0.7;
  max-width: 30ch;
  margin-top: 8px;
}

/* ==================== Tweaks panel ==================== */

.tweaks {
  position: fixed;
  right: 20px;
  bottom: 20px;
  background: var(--paper);
  border: 1px solid var(--rule);
  box-shadow: 0 20px 40px rgba(0,0,0,0.18);
  padding: 16px 18px;
  border-radius: 3px;
  z-index: 100;
  min-width: 240px;
  font-family: var(--serif-body);
}
.tweaks h4 {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-faded);
  margin: 0 0 14px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.tweaks h4::before { content: '—'; letter-spacing: 0; opacity: 0.4; }
.tweaks .swatches { display: flex; gap: 10px; }
.tweaks .sw {
  cursor: pointer;
  border: 1px solid var(--rule-soft);
  padding: 8px 10px;
  border-radius: 2px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  background: var(--paper-deep);
  flex: 1;
  color: var(--ink-soft);
}
.tweaks .sw.active {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  color: var(--ink);
}
.tweaks .sw .chip {
  width: 14px; height: 14px; border-radius: 50%;
  border: 1px solid rgba(0,0,0,0.2);
  background: currentColor;
  padding: 0;
}

/* ==================== Small utilities ==================== */

.sr-only { position: absolute; left:-9999px; }

.spacer-xl { height: 40px; }
.spacer-lg { height: 28px; }
.spacer-md { height: 18px; }