:root{
  --ink:#20293b;
  --ink-soft:#3A4049;
  --parchment:#EDE6D6;
  --parchment-dim:#E3DACA;
  --paper:#FBF9F4;
  --wine:#7B2D3E;
  --wine-dim:#F1DFE1;
  --moss:#4B6358;
  --moss-dim:#DEE6E0;
  --mustard:#C89B3C;
  --mustard-dim:#F3E5C4;
  --text:#2A2620;
  --text-dim:#6E655A;
  --line:#D9D0BE;
  --radius:10px;
  --shadow:0 1px 2px rgba(32,36,43,.06), 0 6px 20px rgba(32,36,43,.06);
  --font-display:'Fraunces', serif;
  --font-body:'Public Sans', sans-serif;
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
[hidden]{display:none !important;}
body{
  font-family:var(--font-body);
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{font-family:var(--font-display); margin:0; color:var(--ink);}
p{margin:0;}
button{font-family:inherit; cursor:pointer;}
input,select,textarea{font-family:inherit; font-size:14px;}

/* ============ BUTTONS ============ */
.btn{
  border:none; border-radius:8px; padding:10px 18px; font-weight:600; font-size:14px;
  transition:transform .08s ease, box-shadow .12s ease;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--wine); color:#fff;}
.btn-primary:hover{box-shadow:0 4px 14px rgba(123,45,62,.28);}
.btn-secondary{background:var(--moss); color:#fff;}
.btn-block{width:100%;}
.btn-ghost{
  background:transparent; border:1px solid var(--line); border-radius:8px;
  padding:8px 14px; color:var(--ink); font-weight:600; font-size:13px;
}
.btn-ghost:hover{background:var(--parchment-dim);}
.btn-danger-ghost{
  background:transparent; border:1px solid var(--wine); color:var(--wine);
  border-radius:8px; padding:6px 12px; font-weight:600; font-size:12px;
}

/* ============ AUTH SCREEN ============ */
.auth-screen{
  min-height:100vh; display:flex; align-items:center; justify-content:center;
  background:
    radial-gradient(circle at 15% 20%, rgba(123,45,62,.10), transparent 45%),
    radial-gradient(circle at 85% 80%, rgba(75,99,88,.12), transparent 45%),
    var(--ink);
  padding:24px;
}
.auth-card{
  background:var(--paper); border-radius:16px; padding:44px 40px;
  max-width:420px; width:100%; box-shadow:0 30px 60px rgba(0,0,0,.35);
}
.auth-kicker{
  text-transform:lowercase; letter-spacing:.06em; color:var(--wine);
  font-weight:700; font-size:13px; margin-bottom:10px;
}
.auth-title{font-size:30px; line-height:1.15; font-weight:600; margin-bottom:12px;}
.auth-sub{color:var(--text-dim); font-size:14.5px; line-height:1.5; margin-bottom:26px;}
.auth-tabs{display:flex; gap:6px; margin-bottom:20px; background:var(--parchment); border-radius:8px; padding:4px;}
.auth-tab{
  flex:1; border:none; background:transparent; padding:9px; border-radius:6px;
  font-weight:600; font-size:13.5px; color:var(--text-dim);
}
.auth-tab.is-active{background:#fff; color:var(--ink); box-shadow:var(--shadow);}
.auth-form{display:flex; flex-direction:column; gap:14px;}
.auth-form label{display:flex; flex-direction:column; gap:6px; font-size:13px; font-weight:600; color:var(--text-dim);}
.auth-form input{
  padding:10px 12px; border:1px solid var(--line); border-radius:8px; background:#fff;
}
.auth-form input:focus{outline:2px solid var(--wine); outline-offset:1px;}
.auth-error{color:var(--wine); font-size:13px; min-height:16px;}
.auth-note{color:var(--moss); font-size:13px;}

/* ============ APP SHELL ============ */
.app-shell{display:flex; min-height:100vh;}
.sidebar{
  width:230px; flex-shrink:0; background:var(--ink); color:#fff;
  display:flex; flex-direction:column; padding:24px 16px;
}
.brand{display:flex; align-items:center; gap:10px; padding:0 8px 26px; }
.brand-mark{font-size:22px;}
.brand-name{font-family:var(--font-display); font-size:19px; font-weight:600;}

.spine-nav{display:flex; flex-direction:column; gap:8px; flex:1;}
.spine{
  text-align:left; border:none; border-radius:6px; padding:14px 14px;
  font-family:var(--font-display); font-weight:600; font-size:14.5px;
  color:#fff; opacity:.72; border-left:4px solid transparent;
  background:rgba(255,255,255,.03);
  transition:opacity .12s ease, background .12s ease;
}
.spine:hover{opacity:.92; background:rgba(255,255,255,.07);}
.spine.is-active{opacity:1; background:rgba(255,255,255,.1);}
.spine[data-color="wine"].is-active{border-left-color:var(--wine);}
.spine[data-color="moss"].is-active{border-left-color:var(--moss);}
.spine[data-color="mustard"].is-active{border-left-color:var(--mustard);}
.spine[data-color="ink"].is-active{border-left-color:#8992A3;}

.sidebar-footer{
  display:flex; align-items:center; justify-content:space-between; gap:8px;
  padding-top:16px; border-top:1px solid rgba(255,255,255,.12);
}
.user-email{font-size:12px; color:rgba(255,255,255,.6); overflow:hidden; text-overflow:ellipsis; white-space:nowrap;}
.sidebar-footer .btn-ghost{border-color:rgba(255,255,255,.25); color:#fff; font-size:12px; padding:6px 10px;}

.content{flex:1; padding:36px 44px; max-width:1180px;}
.view-header{margin-bottom:24px; position:relative;}
.view-header h2{font-size:26px; margin-bottom:4px;}
.view-sub{color:var(--text-dim); font-size:14px;}
.view-header .btn-primary{position:absolute; right:0; top:0;}
.cal-nav{display:flex; align-items:center; gap:12px; margin-top:12px;}
.cal-nav span{font-weight:600; font-family:var(--font-display); font-size:16px;}

/* ============ STAT ROW ============ */
.stat-row{display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-bottom:24px;}
.stat-card{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  padding:18px 20px;
}
.stat-num{font-family:var(--font-display); font-size:30px; font-weight:600; color:var(--ink); display:block;}
.stat-label{font-size:12.5px; color:var(--text-dim);}

/* ============ CARDS / GRID ============ */
.dash-grid{display:grid; grid-template-columns:1.3fr 1fr; gap:18px; margin-bottom:18px;}
.card{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  padding:20px 22px; margin-bottom:18px;
}
.card h3{font-size:16px; margin-bottom:14px;}
.empty-hint{color:var(--text-dim); font-size:13.5px;}

.currently-reading{display:flex; gap:14px; align-items:center;}
.cr-cover{width:56px; height:82px; border-radius:4px; object-fit:cover; background:var(--parchment-dim); flex-shrink:0;}
.cr-title{font-weight:600; font-size:15px;}
.cr-author{color:var(--text-dim); font-size:13px;}
.cr-progress{margin-top:6px; font-size:12px; color:var(--moss); font-weight:600;}

.recent-books{display:flex; flex-direction:column; gap:10px;}
.recent-row{display:flex; justify-content:space-between; font-size:13.5px; border-bottom:1px solid var(--line); padding-bottom:8px;}
.recent-row:last-child{border-bottom:none; padding-bottom:0;}
.recent-row .rr-title{font-weight:600;}
.recent-row .rr-meta{color:var(--text-dim);}

/* ============ LIBRARY TABLE ============ */
.filter-row{display:flex; gap:10px; margin-bottom:18px;}
.filter-row input,.filter-row select{
  padding:9px 12px; border:1px solid var(--line); border-radius:8px; background:#fff;
}
.filter-row input{flex:1;}
table.books-table{width:100%; border-collapse:collapse; background:#fff; border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow);}
table.books-table th{
  text-align:left; font-size:11.5px; text-transform:uppercase; letter-spacing:.03em;
  color:var(--text-dim); background:var(--parchment); padding:10px 14px; font-weight:700;
}
table.books-table td{padding:11px 14px; border-top:1px solid var(--line); font-size:13.5px; vertical-align:middle;}
table.books-table tr:hover td{background:var(--paper);}
.book-title-cell{font-weight:600;}
.book-author-cell{color:var(--text-dim); font-size:12.5px;}
.pill{
  display:inline-block; padding:3px 10px; border-radius:999px; font-size:11.5px; font-weight:700;
}
.pill-reading{background:var(--mustard-dim); color:#8A6A1F;}
.pill-finished{background:var(--moss-dim); color:var(--moss);}
.pill-not-started{background:var(--parchment-dim); color:var(--text-dim);}
.pill-abandoned{background:var(--wine-dim); color:var(--wine);}
.pill-rereading{background:#E4E1F5; color:#4B3F8A;}
.row-actions button{background:none; border:none; cursor:pointer; font-size:14px; margin-right:6px;}

/* ============ MODAL / FORM ============ */
.modal-overlay{
  position:fixed; inset:0; background:rgba(32,36,43,.55); display:flex;
  align-items:center; justify-content:center; z-index:50; padding:24px;
}
.modal{
  background:#fff; border-radius:14px; width:100%; max-width:640px; max-height:88vh;
  overflow-y:auto; padding:26px 28px;
}
.modal-header{display:flex; justify-content:space-between; align-items:center; margin-bottom:18px;}
.book-form{display:grid; grid-template-columns:1fr 1fr; gap:14px;}
.book-form .full{grid-column:1/-1;}
.book-form label{display:flex; flex-direction:column; gap:5px; font-size:12.5px; font-weight:700; color:var(--text-dim);}
.book-form input,.book-form select,.book-form textarea{
  padding:9px 11px; border:1px solid var(--line); border-radius:7px; background:var(--paper);
}
.book-form textarea{resize:vertical; min-height:60px;}
.book-form .form-actions{grid-column:1/-1; display:flex; gap:10px; justify-content:flex-end; margin-top:6px;}

/* ============ READING HABIT ============ */
.goals-form{display:flex; flex-direction:column; gap:12px;}
.goals-form label{display:flex; flex-direction:column; gap:5px; font-size:13px; font-weight:600; color:var(--text-dim);}
.goals-form input{padding:9px 11px; border:1px solid var(--line); border-radius:7px;}
.streak-card{text-align:center;}
.streak-display{margin:10px 0 18px;}
.streak-display span#streak-count{
  font-family:var(--font-display); font-size:52px; font-weight:700; color:var(--wine); display:block;
}
.streak-label{font-size:12.5px; color:var(--text-dim);}

.month-bars{display:grid; grid-template-columns:repeat(12,1fr); gap:8px; align-items:end; height:150px;}
.month-bar-col{display:flex; flex-direction:column; align-items:center; justify-content:flex-end; height:100%;}
.month-bar{width:60%; background:var(--moss); border-radius:4px 4px 0 0; min-height:2px;}
.month-bar-label{font-size:10.5px; color:var(--text-dim); margin-top:6px;}
.month-bar-pct{font-size:10px; color:var(--ink); font-weight:700;}

/* ============ CALENDAR ============ */
.cal-summary{display:flex; gap:22px; margin-bottom:16px; font-size:13px; color:var(--text-dim);}
.cal-summary b{color:var(--ink);}
.calendar-grid{display:grid; grid-template-columns:repeat(7,1fr); gap:8px;}
.cal-dow{font-size:11px; text-transform:uppercase; color:var(--text-dim); font-weight:700; text-align:center; padding-bottom:4px;}
.cal-cell{
  min-height:76px; background:#fff; border:1px solid var(--line); border-radius:8px;
  padding:6px 8px; font-size:11px; position:relative;
}
.cal-cell.is-empty{background:transparent; border:none;}
.cal-cell.has-book{background:var(--mustard-dim); border-color:var(--mustard);}
.cal-daynum{font-weight:700; color:var(--text-dim); font-size:11px;}
.cal-booktitle{font-size:10.5px; margin-top:4px; color:var(--ink); line-height:1.25; display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden;}

/* ============ SHELVES ============ */
.shelf-tabs{display:flex; gap:8px; margin-bottom:20px;}
.shelf-tab{
  border:1px solid var(--line); background:#fff; padding:8px 16px; border-radius:999px;
  font-weight:600; font-size:13px; color:var(--text-dim);
}
.shelf-tab.is-active{background:var(--ink); color:#fff; border-color:var(--ink);}

.shelf-case{
  background:var(--wine); border-radius:12px; padding:6px 14px 0; margin-bottom:26px;
  box-shadow:var(--shadow);
}
.shelf-case-header{
  display:flex; justify-content:space-between; align-items:baseline;
  color:#fff; font-family:var(--font-display); font-size:16px; font-weight:600;
  padding:12px 6px;
}
.shelf-count{font-family:var(--font-body); font-size:12.5px; font-weight:600; color:rgba(255,255,255,.75);}

.spine-row-wrap{background:var(--paper); padding:14px 10px 0;}
.spine-row{display:flex; align-items:flex-end; gap:3px; overflow-x:auto;}
.book-spine{
  flex-shrink:0; border-radius:3px 3px 0 0; color:#fff; font-family:var(--font-display);
  font-size:11px; font-weight:600; writing-mode:vertical-rl; text-orientation:mixed;
  display:flex; align-items:flex-end; justify-content:center; padding-bottom:8px;
  overflow:hidden; white-space:nowrap; cursor:pointer;
  box-shadow:inset -4px 0 8px rgba(0,0,0,.18), 2px 0 3px rgba(0,0,0,.08);
  transition:transform .12s ease;
}
.book-spine:hover{transform:translateY(-4px);}
.book-spine span{max-height:100%; text-overflow:ellipsis; overflow:hidden;}
.shelf-plank{
  height:14px; margin-bottom:18px; border-radius:0 0 4px 4px;
  background:linear-gradient(180deg, #8a5a3a 0%, #6b4326 60%, #55341e 100%);
  box-shadow:0 4px 6px rgba(0,0,0,.28);
}

.shelf-group{margin-bottom:26px;}
.shelf-group h4{font-family:var(--font-display); font-size:16px; margin-bottom:10px; color:var(--ink);}
.shelf-books{display:flex; gap:12px; flex-wrap:wrap;}
.shelf-book{
  width:120px; background:#fff; border:1px solid var(--line); border-radius:8px; padding:8px;
  font-size:12px;
}
.shelf-cover{width:100%; height:150px; object-fit:cover; border-radius:4px; background:var(--parchment-dim); margin-bottom:6px;}
.shelf-book-title{font-weight:700; line-height:1.25; margin-bottom:2px;}
.shelf-book-author{color:var(--text-dim); font-size:11px;}

/* ============ SCORECARD ============ */
.criteria-list{display:flex; flex-direction:column; gap:10px; margin-bottom:12px;}
.criterion-row{display:grid; grid-template-columns:1fr 90px 2fr auto; gap:10px; align-items:center;}
.criterion-row input[type=text]{padding:8px 10px; border:1px solid var(--line); border-radius:6px;}
.criterion-row input[type=number]{padding:8px 10px; border:1px solid var(--line); border-radius:6px; width:100%;}
.weight-total{margin-top:10px; font-size:13px; color:var(--text-dim);}
.weight-hint{font-size:11.5px;}
#scorecard-book-select{padding:9px 12px; border:1px solid var(--line); border-radius:8px; margin-bottom:14px; width:100%; max-width:340px;}
.score-row{display:flex; align-items:center; justify-content:space-between; padding:8px 0; border-bottom:1px solid var(--line);}
.score-row:last-of-type{border-bottom:none;}
.score-row input{width:70px; padding:6px 8px; border:1px solid var(--line); border-radius:6px;}
.weighted-total{margin-top:14px; font-family:var(--font-display); font-size:20px; font-weight:700; color:var(--wine);}

@media (max-width: 900px){
  .app-shell{flex-direction:column;}
  .sidebar{width:100%; flex-direction:row; overflow-x:auto; padding:14px;}
  .spine-nav{flex-direction:row;}
  .dash-grid{grid-template-columns:1fr;}
  .stat-row{grid-template-columns:repeat(2,1fr);}
  .content{padding:20px;}
  .book-form{grid-template-columns:1fr;}
}