@import url('https://fonts.googleapis.com/css2?family=Gaegu:wght@400;700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --ink:#1C2B24;
  --ink-soft:#4A5D53;
  --parchment:#F5F5F7;
  --paper-dark:#E7E7EC;
  --gold:#C89B3C;
  --gold-soft:#DDBE72;
  --brick:#8B3A3A;
  --brick-soft:#B3615E;
  --line: rgba(28,43,36,0.14);
  --shadow: 0 10px 24px rgba(28,43,36,0.14);
  --radius: 14px;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  background: var(--parchment);
  color: var(--ink);
  font-family:'Inter',sans-serif;
  -webkit-tap-highlight-color:transparent;
  overscroll-behavior-y:none;
}

.mono{ font-family:'IBM Plex Mono',monospace; }
.serif{ font-family:'Gaegu',cursive; }

/* texture */
body::before{
  content:'';
  position:fixed; inset:0;
  background-image:
    radial-gradient(rgba(28,43,36,0.05) 1px, transparent 1px);
  background-size: 3px 3px;
  pointer-events:none;
  z-index:0;
}

.app{ position:relative; z-index:1; max-width:520px; margin:0 auto; min-height:100vh; padding-bottom:88px; }

/* ---------- Header ---------- */
.topbar{
  padding:28px 20px 18px;
  display:flex; align-items:flex-end; justify-content:space-between;
}
.topbar h1{
  font-family:'Gaegu',cursive;
  font-weight:700;
  font-size:30px;
  margin:0;
  letter-spacing:-0.01em;
}
.topbar .tagline{
  font-size:12px;
  color:var(--ink-soft);
  margin-top:4px;
}
.stamp-btn{
  width:44px; height:44px;
  border-radius:50%;
  background:var(--ink);
  color:var(--parchment);
  display:flex; align-items:center; justify-content:center;
  font-size:22px;
  border:none;
  cursor:pointer;
  box-shadow:var(--shadow);
}

/* ---------- Stats ledger ---------- */
.ledger{
  margin:0 20px 22px;
  background:var(--ink);
  color:var(--parchment);
  border-radius:var(--radius);
  padding:16px 18px;
  display:flex;
  box-shadow:var(--shadow);
  position:relative;
  overflow:hidden;
}
.ledger::after{
  content:'';
  position:absolute; right:-30px; top:-30px;
  width:100px; height:100px;
  border-radius:50%;
  background: radial-gradient(circle, rgba(200,155,60,0.25), transparent 70%);
}
.ledger .stat{ flex:1; text-align:center; position:relative; z-index:1; }
.ledger .stat + .stat{ border-left:1px solid rgba(241,234,214,0.18); }
.ledger .stat .num{ font-family:'IBM Plex Mono',monospace; font-size:22px; font-weight:500; color:var(--gold-soft); }
.ledger .stat .label{ font-size:11px; color:rgba(241,234,214,0.7); margin-top:2px; }

/* ---------- Tabs ---------- */
.tabs{
  display:flex; gap:6px;
  margin:0 20px 18px;
  overflow-x:auto;
  scrollbar-width:none;
}
.tabs::-webkit-scrollbar{ display:none; }
.tab{
  flex:0 0 auto;
  padding:8px 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--ink-soft);
  font-size:13px;
  font-weight:600;
  cursor:pointer;
  font-family:'Inter',sans-serif;
  white-space:nowrap;
}
.tab.active{
  background:var(--ink);
  color:var(--parchment);
  border-color:var(--ink);
}

/* ---------- Shelf (spine view) ---------- */
.shelf{
  margin:0 20px;
  display:flex;
  gap:6px;
  overflow-x:auto;
  padding:6px 2px 14px;
  min-height:170px;
  align-items:flex-end;
  border-bottom:6px solid var(--paper-dark);
  border-radius: 4px 4px 2px 2px;
}
.shelf::-webkit-scrollbar{ display:none; }
.spine{
  flex:0 0 auto;
  width:38px;
  height:150px;
  border-radius:4px 4px 2px 2px;
  display:flex;
  align-items:flex-start;
  justify-content:center;
  padding-top:12px;
  cursor:pointer;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.08), 2px 0 4px rgba(0,0,0,0.08);
  position:relative;
  transition: transform .15s ease;
}
.spine:active{ transform: translateY(4px); }
.spine .spine-title{
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family:'Gaegu',cursive;
  font-weight:700;
  font-size:12px;
  color:rgba(255,255,255,0.92);
  max-height:120px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.spine.status-reading{ background:var(--brick); }
.spine.status-done{ background:var(--ink); }
.spine.status-want{ background:#7C8A73; }
.spine .progress-notch{
  position:absolute; bottom:0; left:0; right:0;
  height:4px; background:var(--gold);
}

.empty-shelf{
  width:100%;
  text-align:center;
  color:var(--ink-soft);
  font-size:13px;
  padding:40px 0;
}

/* ---------- List (card-catalog rows) ---------- */
.catalog{ margin:22px 20px 0; }
.catalog-heading{
  font-size:12px;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--ink-soft);
  margin-bottom:10px;
  font-weight:600;
}
.card-row{
  display:flex;
  gap:12px;
  padding:12px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:10px;
  margin-bottom:10px;
  cursor:pointer;
}
.card-row .cover{
  width:46px; height:64px;
  border-radius:3px;
  background:var(--paper-dark);
  flex:0 0 auto;
  object-fit:cover;
  box-shadow:0 2px 6px rgba(0,0,0,0.15);
}
.card-row .info{ flex:1; min-width:0; }
.card-row .title{
  font-family:'Gaegu',cursive;
  font-weight:700;
  font-size:15px;
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}
.card-row .author{ font-size:12px; color:var(--ink-soft); margin-top:2px; }
.card-row .progress-bar{
  margin-top:8px;
  height:5px;
  background:var(--paper-dark);
  border-radius:99px;
  overflow:hidden;
}
.card-row .progress-fill{ height:100%; background:var(--brick); }
.card-row .progress-text{ font-size:11px; color:var(--ink-soft); margin-top:4px; font-family:'IBM Plex Mono',monospace; }

/* ---------- FAB ---------- */
.fab{
  position:fixed;
  bottom:24px; left:50%; transform:translateX(-50%);
  width:100%; max-width:520px;
  display:flex; justify-content:center;
  pointer-events:none;
  z-index:20;
}
.fab button{
  pointer-events:auto;
  background:var(--brick);
  color:#fff;
  border:none;
  padding:14px 28px;
  border-radius:999px;
  font-family:'Inter',sans-serif;
  font-weight:600;
  font-size:14px;
  box-shadow:0 8px 20px rgba(139,58,58,0.4);
  cursor:pointer;
  display:flex; align-items:center; gap:8px;
}

/* ---------- Modal / sheet ---------- */
.sheet-backdrop{
  position:fixed; inset:0;
  background:rgba(28,43,36,0.45);
  z-index:30;
  display:none;
}
.sheet-backdrop.open{ display:block; }
.sheet{
  position:fixed; left:0; right:0; bottom:0;
  max-width:520px; margin:0 auto;
  background:var(--parchment);
  border-radius:20px 20px 0 0;
  max-height:92vh;
  overflow-y:auto;
  z-index:31;
  transform:translateY(100%);
  transition:transform .28s cubic-bezier(.32,.72,0,1);
  padding:20px 20px 32px;
}
.sheet.open{ transform:translateY(0); }
.sheet-handle{
  width:36px; height:4px; background:var(--line);
  border-radius:99px; margin:0 auto 16px;
}
.sheet h2{
  font-family:'Gaegu',cursive;
  font-size:20px;
  margin:0 0 16px;
}

.field{ margin-bottom:14px; }
.field label{ font-size:12px; color:var(--ink-soft); font-weight:600; display:block; margin-bottom:6px; }
.field input, .field select, .field textarea{
  width:100%;
  padding:12px 14px;
  border-radius:10px;
  border:1px solid var(--line);
  background:#fff;
  font-family:'Inter',sans-serif;
  font-size:14px;
  color:var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus{
  outline:2px solid var(--gold);
  outline-offset:1px;
}

.search-row{ display:flex; gap:8px; }
.search-row input{ flex:1; }
.search-row button{
  background:var(--ink); color:var(--parchment);
  border:none; border-radius:10px; padding:0 16px;
  font-weight:600; font-size:13px; cursor:pointer;
}

.search-results{ margin-top:10px; display:flex; flex-direction:column; gap:8px; max-height:280px; overflow-y:auto; }
.search-result-item{
  display:flex; gap:10px; align-items:center;
  padding:8px; border-radius:8px; background:#fff; border:1px solid var(--line);
  cursor:pointer;
}
.search-result-item img{ width:36px; height:52px; object-fit:cover; border-radius:2px; }
.search-result-item .sri-title{ font-size:13px; font-weight:600; }
.search-result-item .sri-author{ font-size:11px; color:var(--ink-soft); }

.status-picker{ display:flex; gap:8px; }
.status-chip{
  flex:1; text-align:center;
  padding:10px 6px;
  border-radius:10px;
  border:1px solid var(--line);
  background:#fff;
  font-size:13px; font-weight:600;
  cursor:pointer; color:var(--ink-soft);
}
.status-chip.active{ background:var(--brick); color:#fff; border-color:var(--brick); }

.sheet-actions{ display:flex; gap:10px; margin-top:18px; }
.btn-primary{
  flex:1; background:var(--ink); color:var(--parchment);
  border:none; border-radius:10px; padding:14px; font-weight:700; font-size:14px; cursor:pointer;
}
.btn-secondary{
  background:transparent; color:var(--brick);
  border:1px solid var(--brick); border-radius:10px; padding:14px 18px; font-weight:600; font-size:14px; cursor:pointer;
}

/* ---------- Detail (library card) ---------- */
.lib-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  padding:16px;
  position:relative;
  margin-bottom:16px;
}
.lib-card::before{
  content:'';
  position:absolute; top:0; left:16px; right:16px; height:1px;
  background:repeating-linear-gradient(90deg, var(--line) 0 6px, transparent 6px 12px);
}
.lib-cover-row{ display:flex; gap:14px; }
.lib-cover-row img{ width:80px; height:112px; object-fit:cover; border-radius:4px; box-shadow:0 4px 10px rgba(0,0,0,0.15); }
.lib-cover-row .lib-meta{ flex:1; min-width:0; }
.lib-cover-row .lib-title{ font-family:'Gaegu',cursive; font-weight:700; font-size:18px; line-height:1.25; }
.lib-cover-row .lib-author{ font-size:13px; color:var(--ink-soft); margin-top:4px; }
.lib-cover-row .lib-pages{ font-size:12px; color:var(--ink-soft); margin-top:6px; font-family:'IBM Plex Mono',monospace; }

.stamp{
  position:absolute; top:14px; right:14px;
  border:2px solid var(--brick);
  color:var(--brick);
  border-radius:6px;
  padding:3px 8px;
  font-size:10px;
  font-weight:700;
  transform:rotate(6deg);
  letter-spacing:0.04em;
}

.progress-block{ margin-top:16px; }
.progress-slider{ width:100%; margin-top:8px; accent-color:var(--brick); }

.review-block{ margin-top:18px; }
.star-picker{ display:flex; gap:4px; margin-top:6px; }
.star-picker .star{
  font-size:26px;
  cursor:pointer;
  color:var(--paper-dark);
  transition: color .1s ease;
  line-height:1;
}
.star-picker .star.filled{ color:var(--gold); }
.review-textarea{
  width:100%;
  margin-top:10px;
  min-height:90px;
  padding:12px 14px;
  border-radius:10px;
  border:1px solid var(--line);
  background:#fff;
  font-family:'Inter',sans-serif;
  font-size:13px;
  color:var(--ink);
  resize:vertical;
}
.review-textarea:focus{ outline:2px solid var(--gold); outline-offset:1px; }
.review-saved-hint{ font-size:11px; color:var(--ink-soft); margin-top:6px; height:14px; }

.icon-btn{
  background:none; border:none; color:var(--ink-soft);
  font-size:13px; cursor:pointer; text-decoration:underline;
  padding:0;
}

/* toast */
.toast{
  position:fixed; bottom:100px; left:50%; transform:translateX(-50%);
  background:var(--ink); color:var(--parchment);
  padding:10px 18px; border-radius:99px; font-size:13px;
  z-index:50; opacity:0; pointer-events:none;
  transition:opacity .25s ease;
}
.toast.show{ opacity:1; }

@media (prefers-reduced-motion: reduce){
  .sheet, .spine{ transition:none; }
}