/* ============================================================
   THE BOOK CLUB — READ SOMETHING THAT MATTERS
   Design engine: a book unfolding while a community moves through it
   ============================================================ */

:root{
  --ink:        #1d1610;
  --ink-2:      #2a2119;
  --ink-3:      #382c21;
  --parchment:  #f1e6d2;
  --parchment-2:#e6d6b8;
  --paper:      #faf4e7;

  --rust:       #a54d32;
  --forest:     #33493a;
  --ochre:      #c98a2e;
  --plum:       #6d4a5d;
  --dusty-blue: #55788b;
  --charcoal:   #34291f;
  --cream:      #fbf6ec;

  --progress:   #d97a3f;   /* bright reading-progress accent */
  --progress-2: #e8a46b;

  --text:       #221a12;
  --text-dim:   #5b4c3c;
  --text-faint: #8c7c68;
  --line:       rgba(29,22,16,0.16);
  --line-soft:  rgba(29,22,16,0.09);

  --bg:         var(--parchment);
  --surface:    var(--paper);
  --surface-2:  var(--parchment-2);
  --on-ink:     #f1e6d2;

  --serif: "Spectral", "Iowan Old Style", Georgia, serif;
  --sans: "Public Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;

  --container: 1240px;
  --ease: cubic-bezier(.22,.7,.3,1);
  --speed: 190ms;
}

[data-theme="dark"]{
  --bg:        var(--ink);
  --surface:   var(--ink-2);
  --surface-2: var(--ink-3);
  --text:      #efe4cf;
  --text-dim:  #c2b39a;
  --text-faint:#8f8065;
  --line:      rgba(241,230,210,0.16);
  --line-soft: rgba(241,230,210,0.08);
  --on-ink:    #f1e6d2;
  --ochre:     #dba14a;
  --progress:  #e59259;
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0; background:var(--bg); color:var(--text);
  font-family:var(--sans); font-size:16px; line-height:1.55;
  transition:background var(--speed) var(--ease), color var(--speed) var(--ease);
  -webkit-font-smoothing:antialiased;
}
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4,p{ margin:0; }
button{ font-family:inherit; }
::selection{ background:var(--rust); color:var(--cream); }
:focus-visible{ outline:2px solid var(--dusty-blue); outline-offset:3px; }

/* ---------- layout ---------- */
.wrap{ max-width:var(--container); margin:0 auto; padding:0 32px; }
.grid12{ display:grid; grid-template-columns:repeat(12,1fr); gap:22px; }
@media (max-width:980px){ .grid12{ grid-template-columns:repeat(8,1fr); } .wrap{ padding:0 24px; } }
@media (max-width:620px){ .grid12{ grid-template-columns:repeat(4,1fr); gap:14px; } .wrap{ padding:0 18px; } }

.rule{ border:0; border-top:1px solid var(--line); }
.eyebrow{ font-family:var(--sans); font-size:12px; font-weight:600; letter-spacing:.08em; text-transform:uppercase; color:var(--text-dim); }
.serif{ font-family:var(--serif); }
.mono{ font-family:var(--mono); }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:8px; padding:12px 20px;
  border:1px solid var(--ink); background:var(--ink); color:var(--on-ink);
  font-size:13px; font-weight:600; letter-spacing:.03em; cursor:pointer;
  transition:transform var(--speed) var(--ease);
}
.btn:hover{ transform:translateY(-1px); }
[data-theme="dark"] .btn{ background:var(--parchment); color:var(--ink); border-color:var(--parchment); }
.btn.ghost{ background:transparent; color:var(--text); border-color:var(--line); }
.btn.ghost:hover{ border-color:var(--text); }
.btn.small{ padding:8px 14px; font-size:12px; }
.btn[disabled]{ opacity:.5; cursor:default; transform:none; }

.pill{
  display:inline-flex; align-items:center; gap:6px; padding:5px 11px;
  border:1px solid var(--line); font-size:11px; font-weight:600; letter-spacing:.03em;
  color:var(--text-dim); background:var(--surface);
}
.pill.active{ border-color:var(--rust); color:var(--rust); }
.pill button{ background:none;border:0;color:inherit;cursor:pointer;font-size:13px;padding:0; }

input[type="text"],input[type="email"],input[type="search"],textarea,select{
  width:100%; font-family:var(--sans); font-size:15px; padding:12px 14px;
  background:var(--surface); border:1px solid var(--line); color:var(--text);
}
textarea{ resize:vertical; min-height:110px; }
label{ font-size:12px; font-weight:600; letter-spacing:.03em; text-transform:uppercase; color:var(--text-dim); display:block; margin-bottom:6px; }
.field{ margin-bottom:18px; }
.field-error{ color:var(--rust); font-size:12px; margin-top:6px; }

/* ---------- header ---------- */
.site-header{ position:sticky; top:0; z-index:60; background:var(--bg); border-bottom:1px solid var(--line); }
.header-bar{ display:flex; align-items:center; justify-content:space-between; padding:24px 0; transition:padding var(--speed) var(--ease); }
.site-header.compact .header-bar{ padding:13px 0; }
.brand{ display:flex; flex-direction:column; gap:2px; }
.brand-name{ font-family:var(--serif); font-size:20px; font-weight:600; }
.brand-sub{ font-size:10px; letter-spacing:.12em; text-transform:uppercase; color:var(--text-dim); }
.site-header.compact .brand-sub{ display:none; }

.main-nav{ display:flex; align-items:center; gap:26px; }
.main-nav a{ font-size:13px; font-weight:600; letter-spacing:.02em; position:relative; }
.main-nav a::after{ content:""; position:absolute; left:0; bottom:-6px; height:1px; width:0; background:var(--rust); transition:width var(--speed) var(--ease); }
.main-nav a:hover::after, .main-nav a.active::after{ width:100%; }
.main-nav a.active{ font-weight:700; }
.header-controls{ display:flex; align-items:center; gap:12px; }
.icon-btn{ background:none; border:1px solid var(--line); cursor:pointer; color:var(--text); padding:9px 12px; font-size:12px; display:flex; align-items:center; gap:6px; }
.icon-btn:hover{ border-color:var(--text); }
.icon-btn.on{ border-color:var(--rust); color:var(--rust); }
.menu-toggle{ display:none; }
@media (max-width:980px){ .main-nav{ display:none; } .menu-toggle{ display:flex; } .header-controls .label-text{ display:none; } }

.mobile-nav{ position:fixed; inset:0; z-index:100; background:var(--ink); color:var(--on-ink); transform:translateX(100%); transition:transform 260ms var(--ease); overflow-y:auto; }
.mobile-nav.open{ transform:translateX(0); }
.mobile-nav-inner{ padding:26px 24px 60px; max-width:520px; }
.mobile-nav-top{ display:flex; justify-content:space-between; align-items:center; margin-bottom:34px; }
.mobile-nav a{ display:block; font-family:var(--serif); font-size:25px; padding:12px 0; border-bottom:1px solid rgba(241,230,210,.12); }
.mobile-nav .mobile-sub a{ font-family:var(--sans); font-size:14px; padding:11px 0; }
.mobile-nav .close-btn{ background:none; border:1px solid rgba(241,230,210,.3); color:var(--on-ink); padding:9px 13px; cursor:pointer; }
body.nav-locked{ overflow:hidden; }

/* ---------- hero: open spread ---------- */
.hero{ padding:64px 0 0; }
.hero-kicker{ font-size:12px; letter-spacing:.12em; text-transform:uppercase; color:var(--rust); font-weight:700; margin-bottom:16px; }
.hero-title{ font-family:var(--serif); font-size:clamp(38px,6vw,80px); line-height:.98; font-weight:600; }
.hero-lede{ font-family:var(--serif); font-style:italic; font-size:19px; color:var(--text-dim); max-width:520px; margin-top:22px; }
.hero-cta{ display:flex; gap:12px; margin-top:28px; flex-wrap:wrap; }

.spread{ margin-top:54px; border-top:1px solid var(--line); display:grid; grid-template-columns:1fr 1fr; }
.spread > div{ padding:32px; }
.spread .left{ border-right:1px solid var(--line); }
@media (max-width:800px){ .spread{ grid-template-columns:1fr; } .spread .left{ border-right:0; border-bottom:1px solid var(--line); } }
.spread-label{ font-size:11px; letter-spacing:.08em; text-transform:uppercase; color:var(--text-faint); margin-bottom:10px; }
.spread-book-title{ font-family:var(--serif); font-size:clamp(26px,3.4vw,40px); line-height:1.08; }
.spread-author{ font-size:14px; color:var(--text-dim); margin-top:8px; }
.spread-cycle{ font-family:var(--mono); font-size:13px; color:var(--text-dim); letter-spacing:.02em; }
.spread-pct{ font-family:var(--serif); font-size:64px; line-height:1; margin-top:6px; }
.spread-chapterlines{ display:flex; gap:3px; margin-top:20px; flex-wrap:wrap; }
.chline{ width:10px; height:20px; background:var(--line); }
.chline.done{ background:var(--progress); }

/* ---------- progress bar / rhythm ---------- */
.progress-track{ height:6px; background:var(--line); position:relative; overflow:hidden; }
.progress-fill{ position:absolute; left:0; top:0; bottom:0; background:var(--progress); transition:width 500ms var(--ease); }
.progress-label{ display:flex; justify-content:space-between; font-size:12px; color:var(--text-dim); margin-top:8px; }
.progress-num{ font-family:var(--mono); font-weight:600; }

.rhythm{ display:flex; align-items:flex-end; gap:10px; height:90px; padding-top:10px; }
.rhythm-col{ flex:1; display:flex; flex-direction:column; align-items:center; gap:6px; }
.rhythm-bar{ width:100%; background:var(--ochre); }
.rhythm-label{ font-size:10px; color:var(--text-faint); font-family:var(--mono); }

/* ---------- section scaffolding ---------- */
.section{ padding:64px 0; border-bottom:1px solid var(--line); }
.section.tight{ padding:40px 0; }
.section-head{ display:flex; justify-content:space-between; align-items:flex-end; margin-bottom:30px; gap:20px; flex-wrap:wrap; }
.section-title{ font-family:var(--serif); font-size:32px; }
.section-note{ font-size:13px; color:var(--text-dim); max-width:420px; }

/* ---------- index rows (margin-note style) ---------- */
.index-row{ display:grid; grid-template-columns:70px 1fr auto; gap:18px; padding:22px 0; border-bottom:1px solid var(--line); border-left:2px solid transparent; padding-left:14px; margin-left:-16px; transition:border-color var(--speed), background var(--speed); }
.index-row:hover{ border-left-color:var(--rust); background:var(--surface); }
.index-num{ font-family:var(--mono); font-size:12px; color:var(--text-faint); }
.index-title{ font-family:var(--serif); font-size:21px; line-height:1.25; }
.index-meta{ font-size:12px; color:var(--text-dim); margin-top:7px; display:flex; gap:12px; flex-wrap:wrap; }
.index-summary{ font-size:14px; color:var(--text-dim); margin-top:9px; max-width:620px; }
.index-tags{ display:flex; gap:6px; flex-wrap:wrap; margin-top:9px; }
.index-status{ font-size:11px; text-align:right; color:var(--text-faint); white-space:nowrap; }
@media (max-width:640px){ .index-row{ grid-template-columns:1fr; } .index-status{ text-align:left; } }

/* ---------- chapter map ---------- */
.chapter-map-desktop{ display:none; }
.chapter-map-mobile{ display:block; }
@media (min-width:760px){ .chapter-map-desktop{ display:block; } .chapter-map-mobile{ display:none; } }

.cmap-track{ position:relative; padding:30px 0 10px; overflow-x:auto; }
.cmap-line{ position:relative; display:flex; align-items:center; min-width:max-content; gap:0; padding-bottom:10px; }
.cmap-line::before{ content:""; position:absolute; left:10px; right:10px; top:14px; height:1px; background:var(--line); }
.cmap-node{ width:60px; display:flex; flex-direction:column; align-items:center; cursor:pointer; background:none; border:0; padding:0; flex-shrink:0; }
.cmap-dot{ width:16px; height:16px; border-radius:50%; border:2px solid var(--text-faint); background:var(--bg); position:relative; z-index:2; transition:transform var(--speed); }
.cmap-node[data-state="finished"] .cmap-dot{ background:var(--progress); border-color:var(--progress); }
.cmap-node[data-state="reading"] .cmap-dot{ background:linear-gradient(90deg, var(--progress) 50%, var(--bg) 50%); border-color:var(--progress); }
.cmap-node[data-state="current"] .cmap-dot{ border-color:var(--rust); box-shadow:0 0 0 3px rgba(165,77,50,.15); }
.cmap-node.selected .cmap-dot{ transform:scale(1.3); }
.cmap-num{ font-family:var(--mono); font-size:10px; color:var(--text-faint); margin-top:8px; }
.cmap-here{ font-size:9px; color:var(--rust); font-weight:700; margin-top:2px; text-transform:uppercase; }

.cmap-vert{ position:relative; padding-left:28px; }
.cmap-vert::before{ content:""; position:absolute; left:6px; top:6px; bottom:6px; width:1px; background:var(--line); }
.cmap-vitem{ position:relative; padding-bottom:20px; width:100%; text-align:left; background:none; border:0; cursor:pointer; display:block; }
.cmap-vitem::before{ content:""; position:absolute; left:-28px; top:4px; width:11px; height:11px; border-radius:50%; border:2px solid var(--text-faint); background:var(--bg); }
.cmap-vitem[data-state="finished"]::before{ background:var(--progress); border-color:var(--progress); }
.cmap-vitem[data-state="reading"]::before{ background:linear-gradient(90deg, var(--progress) 50%, var(--bg) 50%); border-color:var(--progress); }
.cmap-vitem[data-state="current"]::before{ border-color:var(--rust); box-shadow:0 0 0 3px rgba(165,77,50,.15); }
.cmap-vhead{ display:flex; justify-content:space-between; align-items:baseline; }
.cmap-vtitle{ font-family:var(--serif); font-size:17px; }
.cmap-vmeta{ font-size:11.5px; color:var(--text-faint); margin-top:3px; }

.legend{ display:flex; gap:18px; flex-wrap:wrap; font-size:11.5px; color:var(--text-dim); margin-top:14px; }
.legend span{ display:inline-flex; align-items:center; gap:6px; }
.legend i{ width:10px; height:10px; border-radius:50%; display:inline-block; border:2px solid var(--text-faint); }
.legend i.f{ background:var(--progress); border-color:var(--progress); }
.legend i.r{ background:linear-gradient(90deg,var(--progress) 50%, transparent 50%); border-color:var(--progress); }

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

/* ---------- chapter detail panel ---------- */
.chapter-panel{ border:1px solid var(--line); padding:26px; margin-top:26px; }
.chapter-actions{ display:flex; gap:10px; flex-wrap:wrap; margin-top:18px; }

/* ---------- margin note / discussion ---------- */
.note{ border-left:3px solid var(--ochre); padding-left:18px; margin:18px 0; }
.note p{ font-family:var(--serif); font-style:italic; font-size:16px; color:var(--text-dim); }

.response{ padding:20px 0; border-top:1px solid var(--line); }
.response-head{ display:flex; justify-content:space-between; align-items:baseline; gap:10px; flex-wrap:wrap; }
.response-member{ font-family:var(--serif); font-size:16px; font-weight:600; }
.response-meta{ font-size:11.5px; color:var(--text-faint); }
.response-text{ margin-top:10px; font-size:15px; color:var(--text); line-height:1.6; }
.response-reactions{ display:flex; gap:8px; flex-wrap:wrap; margin-top:12px; }
.reaction-btn{ font-size:11px; border:1px solid var(--line); background:var(--surface); padding:6px 10px; cursor:pointer; color:var(--text-dim); }
.reaction-btn.on{ border-color:var(--rust); color:var(--rust); }

/* ---------- book identity / spine ---------- */
.spine{ display:flex; gap:2px; writing-mode:vertical-rl; text-orientation:mixed; font-family:var(--serif); font-size:22px; letter-spacing:.02em; padding:20px 0; }

/* ---------- badges ---------- */
.badge{ display:inline-flex; align-items:center; gap:6px; padding:5px 10px; border:1px solid var(--ochre); color:var(--ochre); font-size:10.5px; font-weight:700; letter-spacing:.03em; text-transform:uppercase; }

/* ---------- calendar / agenda ---------- */
.agenda-row{ display:grid; grid-template-columns:90px 1fr auto; gap:18px; padding:20px 0; border-bottom:1px solid var(--line); align-items:center; }
@media (max-width:640px){ .agenda-row{ grid-template-columns:1fr; gap:6px; } }
.agenda-date{ font-family:var(--mono); font-size:13px; color:var(--text-dim); }

/* ---------- member cards (typographic, no photos) ---------- */
.member-row{ display:grid; grid-template-columns:56px 1fr auto; gap:18px; padding:20px 0; border-bottom:1px solid var(--line); align-items:center; }
.initials{ width:52px; height:52px; border:1px solid var(--line); display:flex; align-items:center; justify-content:center; font-family:var(--serif); font-size:18px; }

/* ---------- reading-list progress ---------- */
.list-row{ display:flex; align-items:center; justify-content:space-between; padding:14px 0; border-bottom:1px solid var(--line-soft); gap:12px; }
.status-select{ width:auto; padding:6px 8px; font-size:11.5px; }

/* ---------- vote bars ---------- */
.vote-row{ margin-bottom:16px; }
.vote-label{ display:flex; justify-content:space-between; font-size:13.5px; margin-bottom:6px; }
.vote-track{ height:10px; background:var(--line); position:relative; }
.vote-fill{ position:absolute; left:0;top:0;bottom:0; background:var(--plum); }

/* ---------- timer ---------- */
.timer-display{ font-family:var(--mono); font-size:56px; text-align:center; margin:20px 0; }
.timer-opts{ display:flex; gap:8px; justify-content:center; flex-wrap:wrap; }

/* ---------- toasts / modals ---------- */
.toast-stack{ position:fixed; bottom:22px; left:50%; transform:translateX(-50%); z-index:200; display:flex; flex-direction:column; gap:8px; align-items:center; }
.toast{ background:var(--ink); color:var(--on-ink); padding:12px 20px; font-size:13px; font-weight:600; animation:toastin 180ms var(--ease); }
[data-theme="dark"] .toast{ background:var(--parchment); color:var(--ink); }
@keyframes toastin{ from{opacity:0; transform:translateY(8px);} to{opacity:1; transform:translateY(0);} }

.modal-overlay{ position:fixed; inset:0; background:rgba(29,22,16,.55); z-index:150; display:none; align-items:center; justify-content:center; padding:20px; }
.modal-overlay.open{ display:flex; }
.modal-box{ background:var(--bg); max-width:560px; width:100%; max-height:86vh; overflow-y:auto; padding:30px; position:relative; border:1px solid var(--line); }
.modal-close{ position:absolute; top:16px; right:16px; background:none; border:1px solid var(--line); cursor:pointer; padding:8px 11px; font-size:12px; }

.cmdk-box{ max-width:600px; padding:0; }
.cmdk-input{ padding:20px 22px; border:0; border-bottom:1px solid var(--line); font-size:18px; font-family:var(--serif); }
.cmdk-input:focus{ outline:none; }
.cmdk-list{ max-height:380px; overflow-y:auto; }
.cmdk-item{ padding:13px 22px; border-bottom:1px solid var(--line-soft); cursor:pointer; display:flex; justify-content:space-between; font-size:14px; }
.cmdk-item.sel,.cmdk-item:hover{ background:var(--surface-2); }
.cmdk-item small{ color:var(--text-faint); text-transform:uppercase; font-size:10px; }

.empty-state{ text-align:center; padding:60px 20px; }
.empty-state h3{ font-family:var(--serif); font-size:22px; margin-bottom:10px; }
.empty-state p{ color:var(--text-dim); margin-bottom:20px; }

/* ---------- footer ---------- */
.site-footer{ background:var(--ink); color:var(--on-ink); padding:56px 0 26px; }
[data-theme="dark"] .site-footer{ background:var(--ink-2); }
.footer-top{ display:grid; grid-template-columns:1.4fr repeat(4,1fr); gap:30px; padding-bottom:38px; border-bottom:1px solid rgba(241,230,210,.14); }
@media (max-width:900px){ .footer-top{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:560px){ .footer-top{ grid-template-columns:1fr; } }
.footer-top h5{ font-size:11px; text-transform:uppercase; letter-spacing:.05em; color:rgba(241,230,210,.55); margin-bottom:14px; }
.footer-top a{ display:block; font-size:13.5px; padding:6px 0; color:rgba(241,230,210,.85); }
.footer-brand-title{ font-family:var(--serif); font-size:22px; }
.footer-brand-sub{ font-size:11px; letter-spacing:.08em; text-transform:uppercase; color:rgba(241,230,210,.5); margin-top:6px; }
.footer-bottom{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; font-size:12px; color:rgba(241,230,210,.5); padding-top:18px; }

.skip-link{ position:absolute; left:-999px; top:0; background:var(--ink); color:var(--on-ink); padding:12px 18px; z-index:300; }
.skip-link:focus{ left:12px; top:12px; }

@media print{
  .site-header,.mobile-nav,.toast-stack,.modal-overlay,.site-footer,.icon-btn,.chapter-actions,.reaction-btn,.cmdk-box{ display:none !important; }
  body{ background:#fff; color:#000; }
}