/* ============================================================
   The Reading Room: base styles
   A colorful, lively small library catalog: warm cream pages,
   a shifting violet-to-pink nav, genre-coded chips and cards,
   and a few playful touches (blobs, glow, confetti, counters).
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }

:root {
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --mono: "DM Mono", ui-monospace, Menlo, Consolas, monospace;
  --ease: cubic-bezier(.22,.61,.36,1);
  --bounce: cubic-bezier(.34,1.56,.64,1);

  --paper: #FFFAF3;
  --paper-deep: #FDEEDD;
  --card: #FFFFFF;
  --line: #F1E4EA;
  --line-soft: #F8EEF1;

  --ink: #241C33;
  --ink-2: #5B5270;
  --ink-3: #9691A6;

  --green: #6C3CE9;
  --green-2: #5B2FD1;
  --green-ink: #FFFFFF;

  --brass: #FFB020;
  --brass-2: #FFCB66;
  --brass-text: #9A6412;
  --brass-ink: #3C2408;

  --clay: #FF5D73;
  --clay-2: #E64361;

  --pink: #FF5D8F;
  --teal: #00C2A8;

  --radius-card: 10px;
  --radius-pill: 999px;
  --shadow-card: 0 1px 0 rgba(36,28,51,.04);
  --shadow-lift: 0 22px 44px -18px rgba(108,60,233,.28);
  --pad: clamp(20px, 4vw, 56px);
}

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

body.modal-open { overflow: hidden; }

a { color: inherit; }

button { font-family: var(--sans); }

::selection { background: var(--pink); color: #fff; }

/* subtle color wash so paper doesn't read as flat app-grey */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    radial-gradient(circle at 12% 6%, rgba(255,176,32,.10), transparent 38%),
    radial-gradient(circle at 88% 14%, rgba(255,93,143,.08), transparent 40%),
    radial-gradient(circle at 82% 94%, rgba(108,60,233,.07), transparent 42%);
}

/* ───────────────────────── nav ───────────────────────── */

.ledger-bar {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(30, 20, 68, 0.82);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--green-ink);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
}

.ledger-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 13px var(--pad);
  display: flex;
  align-items: center;
  gap: 28px;
}

.ledger-mark {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -.01em;
  text-decoration: none;
  color: #ffffff;
  display: flex;
  align-items: baseline;
  gap: 9px;
  white-space: nowrap;
}

.ledger-mark .mark-icon {
  display: inline-block;
  transform-origin: 70% 90%;
  transition: transform .4s var(--bounce);
}
.ledger-mark:hover .mark-icon { transform: rotate(-18deg) scale(1.15); }

.ledger-mark small {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 400;
  color: rgba(255,255,255,.75);
  letter-spacing: .04em;
}

.ledger-nav {
  display: flex;
  gap: 4px;
  margin-left: 4px;
}

.ledger-nav a {
  font-size: 13.5px;
  text-decoration: none;
  color: rgba(255,255,255,.72);
  padding: 7px 13px;
  border-radius: var(--radius-pill);
  transition: .18s var(--bounce);
  position: relative;
}

.ledger-nav a:hover { color: #fff; background: rgba(255,255,255,.12); transform: translateY(-1px); }

.ledger-nav a.on {
  color: var(--green);
  background: #fff;
  box-shadow: 0 6px 16px -6px rgba(0,0,0,.35);
}

.ledger-nav .count {
  font-family: var(--mono);
  font-size: 10.5px;
  background: var(--brass);
  color: var(--brass-ink);
  border-radius: 99px;
  padding: 1px 6px;
  margin-left: 7px;
}

.ledger-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

.sound-toggle {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.28);
  background: rgba(255,255,255,.12);
  color: #fff;
  cursor: pointer;
  overflow: hidden;
  transition: .18s var(--bounce);
}
.sound-toggle:hover { border-color: #fff; background: rgba(255,255,255,.24); transform: scale(1.08) rotate(-6deg); }
.sound-toggle svg { width: 16px; height: 16px; flex-shrink: 0; }

.ledger-status-pill {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .03em;
  color: #fff;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
}
.ledger-status-pill .pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.7);
  animation: pulseEmerald 2s ease-out infinite;
}
@keyframes pulseEmerald {
  0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.7); }
  70% { box-shadow: 0 0 0 7px rgba(52, 211, 153, 0); }
  100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

/* Apple-style Frosted Glass Audio Feedback Pop-up */
.sound-feedback-badge {
  position: fixed;
  top: 66px;
  right: 28px;
  z-index: 1000;
  font-family: var(--sans);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .01em;
  padding: 8px 18px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--ink);
  border: 1px solid rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-radius: var(--radius-pill);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12), 0 2px 6px rgba(0, 0, 0, 0.04);
  pointer-events: none;
  opacity: 0;
  transform: translateY(-8px) scale(0.95);
  transition: opacity 0.25s ease, transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  align-items: center;
  gap: 7px;
}
.sound-feedback-badge.show {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Accessibility screen-reader only utility */
.sr-only, .visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* ───────────────────────── layout ───────────────────────── */

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 var(--pad); position: relative; z-index: 1; }

.hero {
  position: relative;
  padding: clamp(48px, 6.5vw, 84px) var(--pad) clamp(32px, 4.5vw, 48px);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  isolation: isolate;
}

/* drifting color blobs, purely decorative */
.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(46px);
  opacity: .35;
  z-index: -2;
  pointer-events: none;
  animation: blobDrift 15s ease-in-out infinite alternate;
}
.hero-blob.b1 { width: 260px; height: 260px; top: -80px; left: -40px; background: var(--brass); animation-duration: 17s; }
.hero-blob.b2 { width: 220px; height: 220px; top: -40px; right: 60px; background: var(--pink); animation-duration: 13s; animation-delay: -4s; }
.hero-blob.b3 { width: 190px; height: 190px; bottom: -90px; right: -30px; background: var(--green); animation-duration: 19s; animation-delay: -8s; }

@keyframes blobDrift {
  0% { transform: translate(0,0) scale(1); }
  50% { transform: translate(24px,-18px) scale(1.12); }
  100% { transform: translate(-16px,14px) scale(.96); }
}

/* cursor-follow glow, position set via --mx/--my JS custom properties */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(320px circle at var(--mx, 50%) var(--my, 0%), rgba(255,176,32,.16), transparent 70%);
  transition: background-position .1s linear;
}

/* Ambient floating books & geometry drifting in hero background */
.hero-floating-elements {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

.float-elem {
  position: absolute;
  color: var(--ink);
  opacity: 0.13;
  will-change: transform;
}

.float-elem.fe-book1 {
  top: 15%;
  left: 8%;
  width: 42px;
  height: 42px;
  animation: floatDrift1 24s ease-in-out infinite alternate;
}

.float-elem.fe-book2 {
  top: 55%;
  right: 12%;
  width: 36px;
  height: 36px;
  animation: floatDrift2 28s ease-in-out infinite alternate;
}

.float-elem.fe-circle1 {
  bottom: 20%;
  left: 28%;
  width: 50px;
  height: 50px;
  animation: floatDrift3 22s ease-in-out infinite alternate;
}

.float-elem.fe-geom1 {
  top: 20%;
  right: 32%;
  width: 28px;
  height: 28px;
  animation: floatDrift2 20s ease-in-out infinite alternate-reverse;
}

.float-elem.fe-sparkle {
  top: 70%;
  left: 48%;
  width: 24px;
  height: 24px;
  animation: floatDrift1 18s ease-in-out infinite alternate-reverse;
}

@keyframes floatDrift1 {
  0% { transform: translate(0, 0) rotate(0deg) scale(1); }
  50% { transform: translate(25px, -20px) rotate(14deg) scale(1.08); }
  100% { transform: translate(-18px, 15px) rotate(-10deg) scale(0.96); }
}

@keyframes floatDrift2 {
  0% { transform: translate(0, 0) rotate(0deg) scale(1); }
  50% { transform: translate(-28px, 24px) rotate(-16deg) scale(1.1); }
  100% { transform: translate(20px, -16px) rotate(12deg) scale(0.95); }
}

@keyframes floatDrift3 {
  0% { transform: translate(0, 0) rotate(0deg) scale(0.95); }
  50% { transform: translate(18px, 22px) rotate(180deg) scale(1.06); }
  100% { transform: translate(-22px, -18px) rotate(360deg) scale(1); }
}

@media (prefers-reduced-motion: reduce) {
  .float-elem {
    animation: none !important;
    opacity: 0.07;
  }
}

.hero h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.22;
  letter-spacing: -.02em;
  margin: 0 0 16px;
  padding-bottom: 6px;
  max-width: 800px;
  background: linear-gradient(100deg, var(--ink) 25%, var(--green) 65%, var(--pink) 95%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: heroShine 8s ease-in-out infinite;
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.hero h1.fade-out {
  opacity: 0;
  transform: translateY(-6px);
}

@keyframes heroShine {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero p {
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--ink-2);
  margin: 0;
}

.hero-quote-rotator {
  font-family: var(--sans);
  font-size: clamp(15px, 2vw, 17px);
  line-height: 1.65;
  color: var(--ink-2);
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
  transition: opacity 0.3s ease, transform 0.3s ease;
  min-height: 52px;
}
.hero-quote-rotator.fade-out {
  opacity: 0;
  transform: translateY(-4px);
}

@media (max-width: 760px) {
  .hero { padding: 40px 16px 28px; }
}

/* ───────────────────────── controls row ───────────────────────── */

.controls {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 24px 0 16px;
  border-bottom: 1px solid var(--line);
}

.controls-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  flex-wrap: wrap;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: 20px;
  padding: 10px 16px;
  box-shadow: 0 8px 30px -10px rgba(28, 22, 50, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
}

.search-field {
  position: relative;
  flex: 1 1 320px;
  min-width: 240px;
}

.search-field input {
  width: 100%;
  height: 42px;
  padding: 0 38px 0 40px;
  border: 1.5px solid rgba(0, 0, 0, 0.08);
  background: rgba(255, 255, 255, 0.88);
  border-radius: var(--radius-pill);
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  outline: none;
  transition: all .2s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.02);
}
.search-field input:focus {
  background: #ffffff;
  border-color: var(--green);
  box-shadow: 0 0 0 4px rgba(108, 60, 233, 0.16);
  transform: translateY(-1px);
}
.search-field input::placeholder { color: var(--ink-3); }

.search-field svg {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--ink-3);
  pointer-events: none;
}

.search-clear-btn {
  position: absolute;
  right: 11px;
  top: 50%;
  transform: translateY(-50%);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: none;
  background: rgba(0, 0, 0, 0.06);
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all .15s ease;
}
.search-clear-btn:hover {
  background: rgba(0, 0, 0, 0.12);
  color: var(--ink);
}

.sort-control {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.sort-control label {
  font-family: var(--sans);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-2);
  letter-spacing: .01em;
  white-space: nowrap;
}

.custom-dropdown {
  position: relative;
  display: inline-block;
}

.sort-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  height: 42px;
  padding: 0 16px;
  min-width: 175px;
  border: 1.5px solid rgba(0, 0, 0, 0.08);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(14px) saturate(180%);
  -webkit-backdrop-filter: blur(14px) saturate(180%);
  border-radius: var(--radius-pill);
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
  outline: none;
  transition: all .2s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.02);
  user-select: none;
}

.sort-trigger:hover {
  background: #ffffff;
  border-color: var(--green);
  box-shadow: 0 4px 12px rgba(108, 60, 233, 0.12);
  transform: translateY(-1px);
}

.custom-dropdown.open .sort-trigger,
.sort-trigger:focus-visible {
  background: #ffffff;
  border-color: var(--green);
  box-shadow: 0 0 0 4px rgba(108, 60, 233, 0.16);
  transform: translateY(-1px);
}

.sort-current {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  white-space: nowrap;
}

.sort-chevron {
  width: 14px;
  height: 14px;
  color: var(--ink-3);
  transition: transform 0.22s cubic-bezier(0.16, 1, 0.3, 1), color 0.15s ease;
  flex-shrink: 0;
}

.sort-trigger:hover .sort-chevron,
.custom-dropdown.open .sort-chevron {
  color: var(--green);
}

.custom-dropdown.open .sort-chevron {
  transform: rotate(180deg);
}

.sort-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 195px;
  width: max-content;
  max-width: 280px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 16px;
  box-shadow: 0 16px 38px -6px rgba(28, 22, 50, 0.18), 0 4px 12px rgba(0, 0, 0, 0.04);
  padding: 6px;
  margin: 0;
  list-style: none;
  z-index: 150;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px) scale(0.96);
  transform-origin: top right;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.18s;
}

.custom-dropdown.open .sort-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.sort-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 12px;
  border-radius: 10px;
  font-family: var(--sans);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
  user-select: none;
  transition: background 0.12s ease, color 0.12s ease;
}

.sort-option:hover {
  background: rgba(108, 60, 233, 0.08);
  color: var(--green);
}

.sort-option.selected {
  background: rgba(108, 60, 233, 0.1);
  color: var(--green);
  font-weight: 600;
}

.check-icon {
  width: 14px;
  height: 14px;
  color: var(--green);
  opacity: 0;
  transform: scale(0.65);
  transition: opacity 0.15s ease, transform 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  flex-shrink: 0;
}

.sort-option.selected .check-icon {
  opacity: 1;
  transform: scale(1);
}

/* Fallback native select styling */
.sort-select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  height: 42px;
  padding: 0 38px 0 16px;
  border: 1.5px solid rgba(0, 0, 0, 0.08);
  background: rgba(255, 255, 255, 0.88);
  border-radius: var(--radius-pill);
  font-family: var(--sans);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
}

@media (max-width: 640px) {
  .controls-row {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding: 12px 14px;
  }
  .search-field {
    width: 100%;
    min-width: unset;
  }
  .sort-control {
    width: 100%;
    justify-content: space-between;
  }
  .custom-dropdown {
    flex: 1;
  }
  .sort-trigger {
    width: 100%;
  }
  .sort-menu {
    left: 0;
    right: 0;
    width: 100%;
    max-width: 100%;
    transform-origin: top center;
  }
}

.chips {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
}

.chip {
  --chip-color: var(--green);
  font-family: var(--sans);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--chip-color);
  background: color-mix(in srgb, var(--chip-color) 10%, white);
  border: 1.5px solid color-mix(in srgb, var(--chip-color) 30%, white);
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: .18s var(--bounce);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.chip .chip-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--chip-color); flex: none; }
.chip:hover { transform: translateY(-2px) scale(1.03); box-shadow: 0 8px 16px -8px color-mix(in srgb, var(--chip-color) 60%, transparent); }
.chip.on {
  background: var(--chip-color);
  border-color: var(--chip-color);
  color: #fff;
  box-shadow: 0 8px 18px -6px color-mix(in srgb, var(--chip-color) 65%, transparent);
}
.chip.on .chip-dot { background: #fff; }

/* ───────────────────────── catalog grid ───────────────────────── */

.shelf-meta {
  padding: 16px 0 4px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
}
.shelf-meta .stat-num { color: var(--green); font-weight: 700; }

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 22px 20px;
  padding: 26px 0 80px;
}

.book-card {
  --accent: var(--green);
  background: var(--card);
  border: 1.5px solid var(--line);
  border-radius: var(--radius-card);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform .32s var(--bounce), box-shadow .32s var(--ease), border-color .2s var(--ease);
  opacity: 0;
  transform: translateY(18px) scale(.94) rotate(-1deg);
  animation: cardIn .55s var(--bounce) forwards;
}

@keyframes cardIn { to { opacity: 1; transform: translateY(0) scale(1) rotate(0); } }

.book-card:hover {
  transform: translateY(-7px) scale(1.025) rotate(-.6deg);
  box-shadow: 0 26px 40px -18px color-mix(in srgb, var(--accent) 45%, transparent);
  border-color: color-mix(in srgb, var(--accent) 35%, white);
}

.book-card:active { transform: translateY(-3px) scale(1.005); }

.book-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.mini-cover-wrap {
  padding: 22px 22px 14px;
  perspective: 900px;
  background: var(--paper-deep);
  border-bottom: 1px solid var(--line);
}

.mini-cover {
  width: 100%;
  aspect-ratio: 3/4;
  border-radius: 4px;
  position: relative;
  transform-style: preserve-3d;
  transform: rotateY(-14deg) rotateX(3deg);
  transition: transform .5s var(--bounce);
  box-shadow:
    -10px 6px 18px -10px rgba(36,28,51,.35),
    -3px 0 0 rgba(0,0,0,.15) inset;
}

.book-card:hover .mini-cover { transform: rotateY(-26deg) rotateX(5deg) translateY(-3px); }

.mini-cover .face {
  position: absolute;
  inset: 0;
  border-radius: 2px;
  display: flex;
  align-items: flex-end;
  padding: 12px;
  z-index: 2;
}

.mini-cover .cover-art-svg {
  position: absolute;
  inset: 10%;
  width: 80%;
  height: 80%;
  color: rgba(255,255,255,.62);
  z-index: 0;
  pointer-events: none;
}

.mini-cover .spine-edge {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 10px;
  background: linear-gradient(90deg, rgba(0,0,0,.35), transparent);
  transform: translateX(-9px) rotateY(90deg);
  transform-origin: right;
}

.mini-cover .pages-edge {
  position: absolute;
  right: -7px; top: 4px; bottom: 4px;
  width: 7px;
  background: repeating-linear-gradient(#FBF6E8, #FBF6E8 1px, #E7DEC4 1px, #E7DEC4 2px);
  transform: rotateY(90deg);
  transform-origin: left;
  border-radius: 0 1px 1px 0;
}

.mini-cover .title {
  font-family: var(--serif);
  color: #fff;
  font-size: 13.5px;
  line-height: 1.2;
  font-weight: 600;
  text-shadow: 0 1px 3px rgba(0,0,0,.4);
}

.mini-cover .emblem {
  position: absolute;
  top: 14px; left: 12px;
  width: 24px; height: 24px;
  opacity: .85;
  color: rgba(255,255,255,.8);
  z-index: 2;
}

.book-info { padding: 15px 16px 17px; display: flex; flex-direction: column; gap: 3px; flex: 1; }

.book-info .genre-tag {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: .03em;
  margin-bottom: 4px;
}

.book-info h3 {
  font-family: var(--serif);
  font-size: 16.5px;
  font-weight: 600;
  margin: 0;
  line-height: 1.25;
  letter-spacing: -.01em;
}

.book-info .author {
  font-size: 12.5px;
  color: var(--ink-2);
  margin-bottom: 8px;
}

.book-info .avail {
  margin-top: auto;
  font-family: var(--mono);
  font-size: 11px;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--ink-2);
}

.avail .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--teal); flex: none; }
.avail.out .dot { background: var(--clay); }
.avail.out { color: var(--clay); }

.empty-state {
  padding: 70px 20px;
  text-align: center;
  color: var(--ink-2);
  font-size: 14.5px;
  grid-column: 1 / -1;
}
.empty-state strong { display: block; font-family: var(--serif); font-size: 20px; color: var(--ink); margin-bottom: 6px; font-weight: 600; }

/* ───────────────────────── shelf page (loans) ───────────────────────── */

.loan-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 26px 0 90px;
}

.loan-card {
  --accent: var(--green);
  display: grid;
  grid-template-columns: 76px 1fr auto;
  gap: 18px;
  align-items: center;
  background: var(--card);
  border: 1.5px solid var(--line);
  border-radius: var(--radius-card);
  padding: 16px 18px;
  transition: opacity .3s var(--ease), transform .3s var(--bounce), box-shadow .3s var(--ease);
  opacity: 0;
  transform: translateY(10px);
  animation: cardIn .5s var(--bounce) forwards;
}
.loan-card:hover { box-shadow: 0 18px 32px -20px color-mix(in srgb, var(--accent) 45%, transparent); }

.loan-card.leaving { opacity: 0; transform: translateX(10px) scale(.98); animation: none; }

.loan-cover {
  width: 76px;
  height: 100px;
  border-radius: 4px;
  flex: none;
  position: relative;
  display: flex;
  align-items: flex-end;
  padding: 6px;
  box-shadow: 0 6px 14px -8px rgba(36,28,51,.5);
  overflow: hidden;
}
.loan-cover span { position: relative; z-index: 2; font-family: var(--serif); color: #fff; font-size: 10.5px; font-weight: 600; line-height: 1.15; text-shadow: 0 1px 2px rgba(0,0,0,.4); }
.loan-cover .cover-art-svg { position: absolute; inset: 6%; width: 88%; height: 88%; color: rgba(255,255,255,.55); z-index: 0; pointer-events: none; }

.loan-body h3 { font-family: var(--serif); font-size: 17px; margin: 0 0 2px; font-weight: 600; }
.loan-body .author { font-size: 12.5px; color: var(--ink-2); margin-bottom: 8px; }

.loan-tags { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

.due-tag {
  font-family: var(--mono);
  font-size: 11px;
  padding: 3px 9px;
  border-radius: var(--radius-pill);
  background: var(--paper-deep);
  color: var(--ink-2);
  border: 1px solid var(--line);
}
.due-tag.soon { background: #FFF1D6; color: #9A6412; border-color: #FFDFA0; }
.due-tag.over { background: #FFE3E7; color: var(--clay-2); border-color: #FFC3CC; }

.borrower-tag {
  font-size: 11.5px;
  color: var(--ink-3);
  font-family: var(--mono);
}

.loan-actions { display: flex; flex-direction: column; gap: 8px; align-items: flex-end; }

@media (max-width: 640px) {
  .loan-card { grid-template-columns: 60px 1fr; }
  .loan-actions { grid-column: 1 / -1; flex-direction: row; justify-content: flex-end; }
}

/* ───────────────────────── buttons ───────────────────────── */

.btn {
  font-family: var(--sans);
  font-size: 13.5px;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: var(--radius-card);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .16s var(--bounce), box-shadow .2s var(--ease), background .2s var(--ease);
  white-space: nowrap;
}
.btn:active { transform: scale(.96); }

.btn-primary {
  background: linear-gradient(120deg, var(--green), #8A3FE0);
  background-size: 160% 160%;
  color: var(--green-ink);
  box-shadow: 0 10px 22px -10px rgba(108,60,233,.55);
}
.btn-primary:hover { background-position: 100% 0; box-shadow: 0 14px 26px -10px rgba(108,60,233,.65); transform: translateY(-1px); }
.btn-primary:disabled { background: var(--ink-3); cursor: not-allowed; opacity: .6; box-shadow: none; }

.btn-outline { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-outline:hover { border-color: var(--green); color: var(--green); }

.btn-clay { background: linear-gradient(120deg, var(--clay), var(--pink)); color: #fff; box-shadow: 0 10px 20px -10px rgba(255,93,115,.55); }
.btn-clay:hover { transform: translateY(-1px); box-shadow: 0 14px 24px -10px rgba(255,93,115,.6); }

.btn-ghost { background: transparent; color: var(--ink-2); border: none; text-decoration: underline; text-underline-offset: 3px; padding: 6px 2px; }

.btn-sm { padding: 7px 13px; font-size: 12.5px; }

/* ───────────────────────── toast ───────────────────────── */

#toast-region {
  position: fixed;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  pointer-events: none;
}

.toast {
  font-family: var(--sans);
  font-size: 13.5px;
  font-weight: 600;
  background: var(--ink);
  color: #fff;
  padding: 11px 18px;
  border-radius: var(--radius-pill);
  box-shadow: 0 14px 34px -8px rgba(36,28,51,.5);
  display: flex;
  align-items: center;
  gap: 9px;
  animation: toastIn .45s var(--bounce) forwards;
}
.toast.leave { animation: toastOut .3s var(--ease) forwards; }
.toast .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--teal); flex: none; }

@keyframes toastIn { from { opacity: 0; transform: translateY(14px) scale(.9); } to { opacity: 1; transform: translateY(0) scale(1); } }
@keyframes toastOut { to { opacity: 0; transform: translateY(6px) scale(.95); } }

/* ───────────────────────── confetti ───────────────────────── */

.confetti-piece {
  position: fixed;
  z-index: 300;
  border-radius: 2px;
  pointer-events: none;
  will-change: transform, opacity;
}

/* ───────────────────────── footer ───────────────────────── */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 26px var(--pad) 40px;
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: var(--ink-3);
  position: relative;
  z-index: 1;
}
.site-footer button.link {
  background: none; border: none; padding: 0; color: var(--ink-3);
  text-decoration: underline; text-underline-offset: 3px; cursor: pointer; font-size: 12.5px; font-family: var(--sans);
}
.site-footer button.link:hover { color: var(--green); }

/* ───────────────────────── controls enhancement (sort & clear) ───────────────────────── */

.search-field { position: relative; }
.search-clear-btn {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  background: none; border: none; font-size: 18px; line-height: 1;
  color: var(--ink-muted, #777); cursor: pointer; padding: 4px 6px;
  border-radius: 4px; transition: color .2s var(--ease);
}
.search-clear-btn:hover { color: var(--ink); }

.controls-row {
  display: flex; gap: 14px; align-items: center; justify-content: space-between; flex-wrap: wrap; margin-bottom: 12px;
}
.sort-control {
  display: flex; align-items: center; gap: 8px; font-size: 0.9rem; color: var(--ink-2);
}
.sort-select {
  background: var(--card); border: 1.5px solid var(--line); border-radius: var(--radius-pill);
  padding: 6px 14px; font-size: 0.85rem; font-family: var(--sans); color: var(--ink);
  cursor: pointer; outline: none; transition: border-color .2s;
}
.sort-select:focus { border-color: var(--green); }

.chip-count {
  display: inline-block; font-size: 0.72rem; padding: 1px 6px; border-radius: 10px;
  background: rgba(0,0,0,0.08); margin-left: 4px; font-weight: 600; vertical-align: middle;
}
.chip.on .chip-count { background: rgba(255,255,255,0.25); color: #fff; }

/* ───────────────────────── shelf tabs & reading history ───────────────────────── */

.shelf-tabs {
  display: flex; gap: 8px; border-bottom: 2px solid var(--line); margin-bottom: 22px;
}
.shelf-tab-btn {
  background: none; border: none; padding: 10px 18px; font-family: var(--sans); font-size: 0.95rem;
  font-weight: 600; color: var(--ink-muted, #777); cursor: pointer; position: relative;
  transition: color .2s;
}
.shelf-tab-btn:hover { color: var(--ink); }
.shelf-tab-btn.active { color: var(--green); }
.shelf-tab-btn.active::after {
  content: ""; position: absolute; bottom: -2px; left: 0; right: 0; height: 3px; background: var(--green);
  border-radius: 3px 3px 0 0;
}
.tab-badge {
  display: inline-block; font-size: 0.75rem; padding: 2px 7px; border-radius: 10px;
  background: rgba(0,0,0,0.07); margin-left: 6px; font-weight: 700;
}
.shelf-tab-btn.active .tab-badge { background: color-mix(in srgb, var(--green) 15%, transparent); color: var(--green); }

.star-rating { display: inline-flex; gap: 4px; align-items: center; cursor: pointer; }
.star-rating .star {
  font-size: 1.2rem; color: #ccc; transition: color .15s, transform .15s;
}
.star-rating .star.filled { color: #f59e0b; }
.star-rating .star:hover { transform: scale(1.2); }

/* ───────────────────────── librarian desk / admin ───────────────────────── */

.admin-grid-stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 16px; margin-bottom: 32px;
}
.stat-card {
  background: var(--card); border: 1.5px solid var(--line); border-radius: var(--radius-card);
  padding: 20px 22px; display: flex; flex-direction: column; gap: 6px;
  box-shadow: 0 4px 12px -4px rgba(0,0,0,0.05);
}
.stat-card .sc-label { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-muted, #777); font-weight: 600; }
.stat-card .sc-val { font-family: var(--serif); font-size: 2rem; font-weight: 700; color: var(--ink); line-height: 1; }
.stat-card.alert { border-color: #fca5a5; background: #fef2f2; }
.stat-card.alert .sc-val { color: #b91c1c; }

.admin-section { margin-bottom: 44px; }
.admin-header-row {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; margin-bottom: 16px;
}
.admin-header-row h2 { font-family: var(--serif); font-size: 1.4rem; margin: 0; font-weight: 600; }

.table-wrap {
  overflow-x: auto; background: var(--card); border: 1.5px solid var(--line);
  border-radius: var(--radius-card); box-shadow: 0 4px 14px -6px rgba(0,0,0,0.06);
}
.admin-table {
  width: 100%; border-collapse: collapse; text-align: left; font-size: 0.88rem;
}
.admin-table th {
  background: rgba(0,0,0,0.025); border-bottom: 1.5px solid var(--line); padding: 12px 16px;
  font-weight: 600; color: var(--ink-2); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em;
}
.admin-table td {
  padding: 13px 16px; border-bottom: 1px solid var(--line); vertical-align: middle;
}
.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: rgba(0,0,0,0.015); }

.status-pill {
  display: inline-flex; align-items: center; gap: 6px; padding: 3px 9px; border-radius: var(--radius-pill);
  font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em;
}
.status-pill.active { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.status-pill.soon { background: #fffbeb; color: #92400e; border: 1px solid #fde68a; }
.status-pill.overdue { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }

.stock-stepper { display: inline-flex; align-items: center; gap: 6px; }
.stock-btn {
  width: 26px; height: 26px; border-radius: 4px; border: 1px solid var(--line); background: var(--card);
  cursor: pointer; display: flex; align-items: center; justify-content: center; font-weight: 700;
  transition: all .15s;
}
.stock-btn:hover { background: var(--line); }

/* Modal drawer for Intake */
.intake-modal-backdrop {
  position: fixed; inset: 0; background: rgba(15, 12, 28, 0.72);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  z-index: 1050; display: flex; align-items: center; justify-content: center; padding: 20px;
}
.intake-modal-backdrop[hidden] { display: none !important; }
.intake-card {
  background: var(--card, #fff); border-radius: 12px; width: 100%; max-width: 580px; max-height: 90vh;
  overflow-y: auto; padding: 28px; box-shadow: 0 20px 40px -10px rgba(0,0,0,0.3); border: 1px solid var(--line);
}
.intake-card h2 { font-family: var(--serif); font-size: 1.45rem; margin-top: 0; margin-bottom: 6px; }
.intake-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 18px; }
.intake-full { grid-column: 1 / -1; }
.intake-field label { display: block; font-size: 0.8rem; font-weight: 600; text-transform: uppercase; color: var(--ink-2); margin-bottom: 5px; }
.intake-field input, .intake-field select, .intake-field textarea {
  width: 100%; padding: 8px 12px; border: 1.5px solid var(--line); border-radius: 6px;
  font-family: var(--sans); font-size: 0.9rem; background: #fff; color: var(--ink); box-sizing: border-box;
}
.intake-field input:focus, .intake-field select:focus, .intake-field textarea:focus {
  border-color: var(--green); outline: none;
}
.intake-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 24px; }

/* ───────────────────────── misc ───────────────────────── */

.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}