/* ============ Theme tokens ============ */
:root,[data-theme="light"]{
  --bg:#f3efe7; --bg-2:#e9e3d6; --surface:#fffdf9; --surface-2:#f7f3eb; --ink:#1d1a16; --muted:#7b7266;
  --line:#e2dacb; --accent:#a8741f; --accent-2:#c9963f; --accent-ink:#fff;
  --danger:#b3261e; --ok:#1e7a3c; --shadow:0 18px 50px rgba(60,40,10,.18);
  --stage:radial-gradient(ellipse at 50% 40%,#fbf8f2 0%,#ebe4d6 70%,#ddd3c1 100%);
}
[data-theme="dark"]{
  --bg:#0f0e0c; --bg-2:#171512; --surface:#1a1815; --surface-2:#22201c; --ink:#f1ebe0; --muted:#a2988a;
  --line:#2f2b25; --accent:#d9a654; --accent-2:#f0c372; --accent-ink:#17130d;
  --danger:#ef6b62; --ok:#5fc27f; --shadow:0 18px 60px rgba(0,0,0,.6);
  --stage:radial-gradient(ellipse at 50% 40%,#2a251e 0%,#141210 65%,#0b0a09 100%);
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font-family:'Inter',system-ui,sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;transition:background .3s,color .3s}
button,input,select{font:inherit;color:inherit}
.serif{font-family:'Cormorant Garamond',Georgia,serif}
.muted{color:var(--muted)} .err{color:var(--danger);font-weight:600} .ok{color:var(--ok);font-weight:600}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:var(--accent-ink);
  border:0;border-radius:12px;padding:.8em 1.3em;font-weight:600;cursor:pointer;text-decoration:none;letter-spacing:.01em;transition:transform .15s,box-shadow .2s}
.btn:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(168,116,31,.35)}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn.ghost:hover{box-shadow:none;border-color:var(--accent)}
.btn.sm{padding:.4em .8em;font-size:.82rem;border-radius:9px}
.btn.danger{background:var(--danger);color:#fff}
input,select{width:100%;padding:.75em .9em;border:1px solid var(--line);border-radius:12px;background:var(--surface-2);margin-top:.35em;outline:none;transition:border-color .2s}
input:focus{border-color:var(--accent)}
label{display:block;margin:.9em 0;font-weight:500;font-size:.88rem;color:var(--muted)}
svg.i{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}

/* ============ Auth ============ */
body.auth{min-height:100%;display:grid;place-items:center;padding:24px;background:var(--stage)}
.auth-shell{display:grid;grid-template-columns:1fr 1fr;max-width:920px;width:100%;background:var(--surface);border:1px solid var(--line);border-radius:24px;overflow:hidden;box-shadow:var(--shadow)}
.auth-cover{position:relative;display:grid;place-items:center;padding:40px;background:linear-gradient(160deg,#1b1610,#0c0a08);perspective:1200px}
.auth-cover img{width:78%;max-width:300px;border-radius:4px 10px 10px 4px;transform:rotateY(-18deg) rotateX(4deg);
  box-shadow:-2px 0 0 #6b4a17 inset, 24px 30px 50px rgba(0,0,0,.6);transition:transform .6s;user-select:none;-webkit-user-drag:none;pointer-events:none}
.auth-cover:hover img{transform:rotateY(-6deg) rotateX(2deg)}
.auth-cover::after{content:"";position:absolute;inset:auto 0 0 0;height:40%;background:linear-gradient(transparent,rgba(217,166,84,.08))}
.auth-form{padding:44px 40px;display:flex;flex-direction:column;justify-content:center}
.eyebrow{text-transform:uppercase;letter-spacing:.18em;font-size:.72rem;color:var(--accent);font-weight:700}
.auth-form h1{font-family:'Cormorant Garamond',serif;font-size:2.4rem;line-height:1.05;margin:.25em 0 .1em;font-weight:700}
.auth-form .btn{width:100%;margin-top:.8em}
.fine{font-size:.76rem;color:var(--muted);margin-top:1.6em;line-height:1.6;display:flex;gap:.5em}
.card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:32px;max-width:420px;width:100%;box-shadow:var(--shadow)}
.card .btn{width:100%}
@media (max-width:760px){.auth-shell{grid-template-columns:1fr}.auth-cover{padding:28px}.auth-cover img{width:46%}.auth-form{padding:28px 24px}}

/* ============ Reader ============ */
body.reader{display:flex;flex-direction:column;height:100dvh;overflow:hidden;background:var(--stage);
  user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}
.bar{display:flex;align-items:center;gap:12px;padding:10px 16px;background:color-mix(in srgb,var(--surface) 82%,transparent);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);z-index:20}
.brand{display:flex;flex-direction:column;min-width:0;flex:1}
.brand strong{font-family:'Cormorant Garamond',serif;font-size:1.3rem;line-height:1.1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand span{font-size:.74rem;color:var(--muted)}
.tools{display:flex;gap:4px;align-items:center}
.ib{width:40px;height:40px;display:grid;place-items:center;border-radius:12px;border:1px solid transparent;background:transparent;cursor:pointer;color:var(--ink);transition:background .15s,border-color .15s}
.ib:hover{background:var(--surface-2);border-color:var(--line)}
.ib.on{color:var(--accent)}
.sep{width:1px;height:24px;background:var(--line);margin:0 4px}
#stage{flex:1;position:relative;display:grid;place-items:center;overflow:hidden;padding:18px}
#bookWrap{position:relative;width:100%;height:100%;display:grid;place-items:center}
#sizer{margin:0 auto}
.pg{background:#fff;overflow:hidden}
.pg canvas{width:100%;height:100%;display:block;pointer-events:none}
.pg .ph{position:absolute;inset:0;display:grid;place-items:center;background:linear-gradient(110deg,#f6f2ea 30%,#fff 50%,#f6f2ea 70%);background-size:200% 100%;animation:shimmer 1.4s infinite}
@keyframes shimmer{to{background-position:-200% 0}}
.pg.loaded .ph{display:none}
#wm{position:absolute;inset:-50%;pointer-events:none;color:rgba(128,128,128,.07);font:600 14px/70px ui-monospace,monospace;word-spacing:24px;transform:rotate(-28deg);transition:transform 2s;overflow:hidden;z-index:5}
.foot{display:flex;align-items:center;gap:14px;padding:10px 18px calc(10px + env(safe-area-inset-bottom));background:color-mix(in srgb,var(--surface) 82%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-top:1px solid var(--line)}
.foot .count{font-variant-numeric:tabular-nums;font-size:.85rem;color:var(--muted);min-width:92px;text-align:center}
input[type=range]{flex:1;margin:0;padding:0;border:0;background:transparent;accent-color:var(--accent);height:24px}
.nav-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:10;width:48px;height:48px;border-radius:50%;border:1px solid var(--line);
  background:color-mix(in srgb,var(--surface) 85%,transparent);backdrop-filter:blur(8px);display:grid;place-items:center;cursor:pointer;color:var(--ink);box-shadow:var(--shadow);transition:transform .15s}
.nav-arrow:hover{transform:translateY(-50%) scale(1.06)}
.nav-arrow.prev{left:16px}.nav-arrow.next{right:16px}
#toast{position:absolute;top:16px;left:50%;transform:translate(-50%,-20px);opacity:0;background:var(--surface);border:1px solid var(--line);padding:10px 16px;border-radius:12px;box-shadow:var(--shadow);transition:.3s;z-index:30;font-size:.9rem;pointer-events:none}
#toast.show{opacity:1;transform:translate(-50%,0)}

/* Side panels */
.panel-side{position:fixed;top:0;right:0;height:100%;width:min(380px,92vw);background:var(--surface);border-left:1px solid var(--line);box-shadow:var(--shadow);
  transform:translateX(105%);transition:transform .35s cubic-bezier(.2,.8,.2,1);z-index:40;display:flex;flex-direction:column}
.panel-side.open{transform:none}
.panel-side header{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid var(--line)}
.panel-side h3{margin:0;font-family:'Cormorant Garamond',serif;font-size:1.4rem}
.panel-side .body{padding:14px 18px;overflow:auto;flex:1}
.search-box{display:flex;gap:8px;align-items:center;padding:0 12px;border:1px solid var(--line);border-radius:12px;background:var(--surface-2)}
.search-box input{border:0;background:transparent;margin:0;padding:.7em 0}
.result{display:block;width:100%;text-align:left;padding:12px;border-radius:12px;border:1px solid transparent;background:transparent;cursor:pointer;margin-top:6px}
.result:hover{background:var(--surface-2);border-color:var(--line)}
.result b{color:var(--accent);font-size:.78rem;letter-spacing:.06em;text-transform:uppercase}
.result p{margin:.3em 0 0;font-size:.88rem;line-height:1.5;color:var(--muted)}
.result mark{background:color-mix(in srgb,var(--accent) 30%,transparent);color:var(--ink);border-radius:3px;padding:0 2px}
.empty{color:var(--muted);text-align:center;padding:30px 10px;font-size:.9rem}
.scrim{position:fixed;inset:0;background:rgba(0,0,0,.35);opacity:0;pointer-events:none;transition:.3s;z-index:35}
.scrim.open{opacity:1;pointer-events:auto}
.menu{position:absolute;top:56px;right:12px;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:6px;min-width:200px;display:none;z-index:45}
.menu.open{display:block}
.menu a,.menu button{display:flex;align-items:center;gap:10px;width:100%;padding:10px 12px;border-radius:10px;text-decoration:none;color:var(--ink);background:none;border:0;cursor:pointer;font-size:.9rem}
.menu a:hover,.menu button:hover{background:var(--surface-2)}
.menu .who{padding:10px 12px;font-size:.78rem;color:var(--muted);border-bottom:1px solid var(--line);margin-bottom:4px}

/* Magnifier */
#zoomView{position:fixed;inset:0;z-index:50;background:var(--bg);display:none;flex-direction:column}
#zoomView.open{display:flex}
#zoomView .bar{justify-content:space-between}
#zoomScroll{flex:1;overflow:auto;padding:20px;cursor:grab}
#zoomScroll.drag{cursor:grabbing}
#zoomCanvas{display:block;margin:0 auto;box-shadow:var(--shadow);background:#fff;pointer-events:none}
.zl{font-variant-numeric:tabular-nums;min-width:56px;text-align:center;font-size:.9rem}

/* Intro (opening the book) */
#intro{position:fixed;inset:0;z-index:60;display:grid;place-items:center;background:radial-gradient(ellipse at center,#2b241a 0%,#0b0907 75%);transition:opacity .8s}
#intro.gone{opacity:0;pointer-events:none}
.intro-inner{display:flex;flex-direction:column;align-items:center;gap:28px;padding:20px;text-align:center;color:#f3e9d7}
.book3d{position:relative;width:min(300px,62vw);aspect-ratio:1398/1985;perspective:1800px}
.book3d .inside{position:absolute;inset:0;background:linear-gradient(90deg,#efe7d8,#fffaf0 8%,#fff);border-radius:3px 8px 8px 3px;box-shadow:0 30px 70px rgba(0,0,0,.6)}
.book3d .inside::before{content:"";position:absolute;inset:6% 10%;background:repeating-linear-gradient(#0000 0 14px,rgba(0,0,0,.06) 14px 15px)}
.book3d .cover{position:absolute;inset:0;transform-origin:left center;transform-style:preserve-3d;transition:transform 1.6s cubic-bezier(.6,.05,.25,1);
  animation:float 4s ease-in-out infinite}
.book3d .cover img,.book3d .cover .back{position:absolute;inset:0;width:100%;height:100%;border-radius:3px 8px 8px 3px;backface-visibility:hidden;-webkit-backface-visibility:hidden}
.book3d .cover img{box-shadow:inset 6px 0 10px rgba(0,0,0,.4),0 30px 70px rgba(0,0,0,.6);pointer-events:none;-webkit-user-drag:none}
.book3d .cover .back{background:linear-gradient(90deg,#e9dfcb,#f7f0e2);transform:rotateY(180deg)}
.book3d.opening .cover{transform:rotateY(-165deg);animation:none}
@keyframes float{50%{transform:translateY(-8px) rotateY(-4deg)}}
.intro-title{font-family:'Cormorant Garamond',serif;font-size:2rem;margin:0;letter-spacing:.02em}
.intro-sub{margin:-18px 0 0;color:#c7b89d;font-size:.9rem;letter-spacing:.14em;text-transform:uppercase}

/* Shield */
#shield{position:fixed;inset:0;background:#000;color:#fff;display:none;place-items:center;text-align:center;font-size:1.1rem;z-index:99;line-height:1.8}
#shield svg{width:44px;height:44px;stroke:#d9a654}
body.shielded #shield,body.devtools #shield{display:grid}
body.shielded #stage,body.devtools #stage,body.shielded #zoomView,body.devtools #zoomView{visibility:hidden}
@media print{body{display:none!important}}

@media (max-width:640px){
  .bar{padding:8px 10px;gap:6px}.brand span{display:none}.ib{width:36px;height:36px}.hide-sm{display:none!important}
  .nav-arrow{display:none}#stage{padding:8px}
}

/* ============ Admin ============ */
body.admin{padding:20px;max-width:1180px;margin:0 auto}
.admin-head{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;margin-bottom:8px}
.admin-head h1{font-family:'Cormorant Garamond',serif;font-size:2rem;margin:0}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:20px;margin:16px 0}
.panel h2{margin:0 0 6px;font-size:1.05rem}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:0 14px;align-items:end}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:16px}
.stat span{font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.stat b{display:block;font-size:1.8rem;margin-top:4px;font-family:'Cormorant Garamond',serif}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:.86rem}
th{font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:600}
th,td{padding:10px 8px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle;white-space:nowrap}
td form{display:inline}
.tag{font-size:.72rem;padding:3px 9px;border-radius:99px;background:var(--line);font-weight:600}
.tag.on{background:rgba(30,122,60,.15);color:var(--ok)} .tag.off{background:rgba(179,38,30,.15);color:var(--danger)}
.actions{display:flex;flex-wrap:wrap;gap:4px}
.flash{border-color:var(--accent)}
.menu .show-sm{display:none}
@media (max-width:640px){.menu .show-sm{display:flex}}