:root{
  --wood:#6b4a2b; --wood-dark:#4e351d; --wood-light:#8a6440;
  --paper:#f6efe2; --ink:#2c2417; --accent:#b5651d; --accent2:#3a6b8a;
  --shelf:#7a5331; --glow:#ffe9b0; --shadow:rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;font-family:"Iowan Old Style",Georgia,"Times New Roman",serif;color:var(--ink)}
body{background:#241910;overflow-x:hidden}
button{font-family:inherit;cursor:pointer}
.hidden{display:none!important}

/* ---------- GATE ---------- */
#gate{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(circle at 50% 30%, #3a2a18, #160f08);z-index:50}
.tag{background:var(--paper);padding:34px 38px;border-radius:10px;max-width:360px;width:90%;
  box-shadow:0 18px 50px var(--shadow);transform:rotate(-1.2deg);position:relative;text-align:center}
.tag h1{margin:.1em 0 .1em;font-size:1.7rem;letter-spacing:.02em}
.tag p{margin:.2em 0 1.2em;font-size:.92rem;color:#6a5a40}
.tag input{width:100%;padding:11px 12px;border:1px solid #c9b78f;border-radius:6px;font-size:1rem;
  background:#fffdf8;margin-bottom:12px}
.tag button{width:100%;padding:11px;border:0;border-radius:6px;background:var(--accent);color:#fff;font-size:1rem}
.tag button:hover{background:#9c531a}
.tag .err{color:#a3331f;font-size:.85rem;min-height:1.1em;margin-top:8px}
.tag .pin{position:absolute;top:-9px;left:50%;width:14px;height:14px;border-radius:50%;
  background:#c0392b;transform:translateX(-50%);box-shadow:0 2px 4px var(--shadow)}

/* ---------- DESK ---------- */
#desk{position:fixed;inset:0;background:
  radial-gradient(ellipse at 50% 0%, rgba(255,233,176,.22), transparent 55%),
  linear-gradient(#3b2a18,#241910);display:flex;flex-direction:column;align-items:center;justify-content:flex-end}
.desk-surface{position:absolute;bottom:0;width:100%;height:62%;
  background:linear-gradient(var(--wood-light),var(--wood) 30%,var(--wood-dark));
  box-shadow:inset 0 12px 30px rgba(0,0,0,.3);border-top:3px solid #3a2614}
.desk-surface::before{content:"";position:absolute;inset:0;opacity:.18;
  background:repeating-linear-gradient(90deg, rgba(0,0,0,.25) 0 2px, transparent 2px 26px)}
.lamp{position:absolute;top:4%;left:50%;transform:translateX(-50%);text-align:center;z-index:2}
.lamp .bulb{width:120px;height:60px;border-radius:0 0 60px 60px;background:#2a2018;margin:0 auto;position:relative}
.lamp .light{position:absolute;top:54px;left:50%;transform:translateX(-50%);
  width:340px;height:330px;background:radial-gradient(ellipse at top, rgba(255,233,176,.5), transparent 70%);pointer-events:none}
.desk-title{position:absolute;top:7%;width:100%;text-align:center;color:#f3e2c0;z-index:3;
  text-shadow:0 2px 8px #000;font-size:1.4rem;letter-spacing:.06em}
.items{position:relative;z-index:3;display:flex;gap:8%;align-items:flex-end;
  width:100%;justify-content:center;padding-bottom:9%}
.item{cursor:pointer;text-align:center;transition:transform .18s ease, filter .18s ease;filter:drop-shadow(0 10px 18px var(--shadow))}
.item:hover{transform:translateY(-12px) scale(1.04)}
.item .label{margin-top:14px;color:#f3e2c0;font-size:1.15rem;text-shadow:0 2px 6px #000}
.item .sub{color:#d8c5a0;font-size:.8rem}
/* stack of books */
.books{width:190px;height:150px;position:relative}
.book{position:absolute;left:0;right:0;height:26px;border-radius:3px;box-shadow:inset 0 0 0 2px rgba(255,255,255,.08),0 3px 5px var(--shadow)}
.book b{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:#fff7e6;font-size:.72rem;opacity:.85;letter-spacing:.03em}
/* folder/binder */
.folder{width:210px;height:150px;position:relative}
.folder .flap{position:absolute;bottom:0;width:100%;height:118px;background:linear-gradient(#caa15f,#b5894a);border-radius:8px;box-shadow:0 4px 8px var(--shadow)}
.folder .tab{position:absolute;top:18px;right:24px;width:80px;height:26px;background:#b5894a;border-radius:8px 8px 0 0}
.folder .paper{position:absolute;bottom:18px;left:12px;right:12px;height:96px;background:#fbf6ea;border-radius:4px;
  box-shadow:0 2px 4px rgba(0,0,0,.2);overflow:hidden}
.folder .paper::before{content:"";position:absolute;left:12px;right:12px;top:14px;height:8px;background:#e7dcc4;
  box-shadow:0 18px 0 #e7dcc4,0 36px 0 #e7dcc4,0 54px 0 #e7dcc4}
.locked .item{pointer-events:none;filter:grayscale(.6) brightness(.7)}
.signout{position:absolute;top:16px;right:18px;z-index:5;background:rgba(0,0,0,.3);color:#f3e2c0;
  border:1px solid rgba(255,255,255,.2);padding:7px 12px;border-radius:6px;font-size:.82rem}

/* ---------- BOOKCASE ---------- */
#shelf{position:fixed;inset:0;background:linear-gradient(#3a2a18,#241910);display:flex;flex-direction:column}
.bar{display:flex;align-items:center;gap:14px;padding:12px 18px;background:var(--wood-dark);
  box-shadow:0 3px 10px var(--shadow);z-index:4}
.bar .back{background:var(--accent);color:#fff;border:0;padding:8px 14px;border-radius:6px}
.bar .sec{color:#f3e2c0;font-size:1.15rem;letter-spacing:.04em;margin-right:auto}
.bar input{flex:0 1 320px;padding:9px 12px;border:0;border-radius:6px;background:#fffdf8;font-size:.95rem}
.shelves{flex:1;overflow:auto;padding:18px 22px 60px}
.folderblock{margin-bottom:10px}
.folderhead{display:flex;align-items:center;gap:8px;color:#f3e2c0;cursor:pointer;
  padding:8px 4px;font-size:1.02rem;border-bottom:1px dashed rgba(255,233,176,.25)}
.folderhead .cnt{color:#caa15f;font-size:.82rem}
.folderhead .chev{transition:transform .15s}
.folderblock.collapsed .chev{transform:rotate(-90deg)}
.folderblock.collapsed .plank{display:none}
.plank{position:relative;display:flex;flex-wrap:wrap;gap:4px;align-items:flex-end;min-height:120px;
  padding:14px 12px 0;margin-top:8px;border-radius:4px 4px 0 0;
  background:linear-gradient(180deg, rgba(0,0,0,.12), transparent)}
.plank::after{content:"";position:absolute;left:0;right:0;bottom:0;height:14px;border-radius:3px;
  background:linear-gradient(var(--shelf),#5a3c22);box-shadow:0 6px 12px var(--shadow)}
.spine{position:relative;height:110px;width:34px;border-radius:3px 3px 1px 1px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;color:#fff7e6;
  box-shadow:inset -3px 0 6px rgba(0,0,0,.35),inset 2px 0 3px rgba(255,255,255,.12),0 3px 5px var(--shadow);
  transition:transform .14s ease, margin .14s ease}
.spine span{writing-mode:vertical-rl;transform:rotate(180deg);font-size:.62rem;white-space:nowrap;
  overflow:hidden;max-height:96px;text-shadow:0 1px 2px rgba(0,0,0,.5);padding:4px 0}
.spine:hover{transform:translateY(-14px)}
.results{padding:6px 2px}
.result{background:var(--paper);margin:8px 0;padding:12px 14px;border-radius:6px;cursor:pointer;box-shadow:0 3px 8px var(--shadow)}
.result:hover{background:#fffaf0}
.result .rt{font-weight:bold} .result .rf{color:#8a6f44;font-size:.8rem} .result .rs{color:#5a4a30;font-size:.85rem}
.empty{color:#caa15f;text-align:center;padding:40px}

/* ---------- READER ---------- */
#reader{position:fixed;inset:0;background:rgba(20,14,8,.7);display:flex;justify-content:center;align-items:flex-start;
  z-index:20;overflow:auto;padding:30px 16px}
.sheet{background:var(--paper);max-width:820px;width:100%;margin:auto;border-radius:8px;
  box-shadow:0 24px 70px rgba(0,0,0,.55);padding:34px 42px 60px;position:relative}
.sheet .close{position:absolute;top:14px;right:16px;background:#d9cba8;border:0;width:32px;height:32px;border-radius:50%;font-size:1rem}
.crumb{color:#8a6f44;font-size:.82rem;margin-bottom:4px}
.sheet h1.title{margin:.1em 0 .3em;font-size:1.8rem}
.tags{margin:.2em 0 1.2em}
.tags .tg{display:inline-block;background:#e7dcc4;color:#5a4a30;padding:2px 9px;border-radius:12px;font-size:.74rem;margin:0 5px 5px 0}
.content{line-height:1.62;font-size:1.02rem}
.content h1,.content h2,.content h3{font-family:inherit;line-height:1.25;margin-top:1.3em}
.content h1{font-size:1.5rem;border-bottom:1px solid #ddccab;padding-bottom:.2em}
.content h2{font-size:1.28rem} .content h3{font-size:1.1rem}
.content code{background:#ece2cd;padding:1px 5px;border-radius:4px;font-size:.9em;font-family:"SF Mono",Consolas,monospace}
.content pre{background:#2c2417;color:#f3e9d6;padding:14px 16px;border-radius:8px;overflow:auto;font-size:.86rem}
.content pre code{background:none;color:inherit;padding:0}
.content a{color:var(--accent2);text-decoration:none;border-bottom:1px solid rgba(58,107,138,.4)}
.content a:hover{border-bottom-color:var(--accent2)}
.content a.wl-dead{color:#a08a5e;border-bottom:1px dotted #a08a5e;cursor:help}
.content img{max-width:100%;border-radius:6px;box-shadow:0 4px 10px var(--shadow)}
.content blockquote{border-left:4px solid #caa15f;margin:1em 0;padding:.2em 1em;color:#5a4a30;background:#efe6d2}
.content table{border-collapse:collapse;margin:1em 0;font-size:.92rem}
.content th,.content td{border:1px solid #d3c3a0;padding:6px 10px}
.related{margin-top:2.4em;border-top:1px solid #ddccab;padding-top:14px}
.related h3{margin:.2em 0 .6em;font-size:1rem;color:#5a4a30}
.related a{display:inline-block;background:#e7dcc4;color:#3a6b8a;padding:5px 11px;border-radius:14px;
  font-size:.82rem;margin:0 6px 6px 0;text-decoration:none}
.related a:hover{background:#dcceb0}
.loading{color:#f3e2c0;text-align:center;font-size:1.1rem;padding:40px}
@media(max-width:640px){.sheet{padding:22px 20px 50px}.items{flex-direction:column;gap:24px;padding-bottom:14%}
 .bar input{flex:1}}