:root{
--bg:#16100c;--bg2:#1e1611;--card:#261b14;--card2:#2f2219;--line:rgba(255,226,190,.09);
--tx:#f3e7d6;--mut:#b09c86;--dim:#7d6b5a;--amb:#e8a64c;--cop:#c8742f;--glow:rgba(232,166,76,.28);
--ok:#9ccf8a;--bad:#e08a6e;--ease:cubic-bezier(.32,.72,0,1);
--serif:'Fraunces',Georgia,serif;--sans:'Inter',system-ui,-apple-system,sans-serif;
--sh:0 2px 4px rgba(0,0,0,.35),0 14px 34px -8px rgba(0,0,0,.6);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%}
body{background:var(--bg);color:var(--tx);font:400 15px/1.5 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::after{content:"";position:fixed;inset:0;pointer-events:none;z-index:1;background:radial-gradient(ellipse at 50% 40%,transparent 55%,rgba(0,0,0,.55))}
.sprite{position:absolute;width:0;height:0}
svg{width:1.25em;height:1.25em;flex:none}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
.ambient{position:fixed;inset:0;z-index:0;pointer-events:none;background:
radial-gradient(60% 45% at 50% -5%,rgba(232,166,76,.2),transparent 70%),
radial-gradient(40% 35% at 90% 100%,rgba(200,116,47,.14),transparent 70%),
radial-gradient(35% 30% at 5% 80%,rgba(200,116,47,.08),transparent 70%);animation:flick 7s ease-in-out infinite alternate}
@keyframes flick{from{opacity:.8}to{opacity:1}}

#bar{position:fixed;top:0;left:0;right:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:calc(10px + env(safe-area-inset-top)) max(16px,env(safe-area-inset-right)) 10px max(16px,env(safe-area-inset-left));background:rgba(22,16,12,.68);backdrop-filter:blur(20px) saturate(1.4);-webkit-backdrop-filter:blur(20px) saturate(1.4);border-bottom:1px solid var(--line)}
#homeBtn{display:flex;align-items:center;gap:8px;padding:6px 8px;border-radius:12px;transition:transform .25s var(--ease)}
#homeBtn:active{transform:scale(.95)}
.brand-mark{color:var(--amb);width:22px;height:22px;filter:drop-shadow(0 0 8px var(--glow))}
.brand-word{font:600 21px var(--serif);letter-spacing:.01em}
.bar-tools{display:flex;gap:8px;align-items:center;min-width:0}
#group,.key{height:36px;border-radius:12px;background:rgba(255,226,190,.06);border:1px solid var(--line);transition:border-color .3s var(--ease),box-shadow .3s var(--ease)}
#group{padding:0 10px;max-width:130px;font-size:13px;color:var(--mut);appearance:none;-webkit-appearance:none;text-overflow:ellipsis}
#group option{background:var(--bg2);color:var(--tx)}
.key{display:flex;align-items:center;gap:6px;padding:0 10px;color:var(--mut)}
.key input{width:84px;background:none;border:0;outline:0;font-size:13px;min-width:0}
.key input::placeholder,.search input::placeholder{color:var(--dim)}
#group:focus,.key:focus-within{border-color:var(--amb);box-shadow:0 0 0 3px var(--glow);outline:0}

#home{position:relative;z-index:2;min-height:100%;padding:calc(64px + env(safe-area-inset-top)) 16px calc(40px + env(safe-area-inset-bottom))}
.flow{max-width:1080px;margin:0 auto}
.greet{font:600 clamp(28px,6vw,46px)/1.12 var(--serif);letter-spacing:-.01em;margin:22px 0 20px;max-width:16em}
.greet em{display:block;font-style:italic;font-weight:500;color:var(--amb);text-shadow:0 0 30px var(--glow)}
.search{display:flex;align-items:center;gap:10px;height:50px;padding:0 16px;border-radius:16px;background:rgba(255,226,190,.06);border:1px solid var(--line);color:var(--mut);box-shadow:inset 0 1px 0 rgba(255,255,255,.03);transition:border-color .3s var(--ease),box-shadow .3s var(--ease),background .3s}
.search:focus-within{border-color:var(--amb);box-shadow:0 0 0 4px var(--glow);background:rgba(255,226,190,.09)}
.search input{flex:1;min-width:0;background:none;border:0;outline:0;font-size:16px;color:var(--tx)}
.chips{display:flex;gap:8px;overflow-x:auto;padding:16px 0 6px;scrollbar-width:none;scroll-snap-type:x proximity;-webkit-mask-image:linear-gradient(90deg,#000 92%,transparent);mask-image:linear-gradient(90deg,#000 92%,transparent)}
.chips::-webkit-scrollbar{display:none}
.chip{flex:none;padding:8px 14px;border-radius:99px;font-size:13px;font-weight:500;color:var(--mut);background:rgba(255,226,190,.05);border:1px solid var(--line);scroll-snap-align:start;white-space:nowrap;transition:all .3s var(--ease)}
.chip:active{transform:scale(.95)}
.chip.on,.chip[aria-selected=true]{color:#20140a;background:linear-gradient(135deg,var(--amb),var(--cop));border-color:transparent;box-shadow:0 6px 20px -6px var(--glow)}
.count{margin:10px 2px 18px;font-size:13px;color:var(--dim);letter-spacing:.02em}

#grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
@media(min-width:640px){#grid{grid-template-columns:repeat(3,1fr);gap:22px}#home{padding-left:28px;padding-right:28px}}
@media(min-width:960px){#grid{grid-template-columns:repeat(4,1fr)}}
.book{display:flex;flex-direction:column;background:linear-gradient(180deg,var(--card2),var(--card));border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--sh);cursor:pointer;outline:0;transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .3s;animation:rise .6s var(--ease) both}
@keyframes rise{from{opacity:0;transform:translateY(14px)}}
.book:hover{transform:translateY(-4px);border-color:rgba(232,166,76,.35);box-shadow:var(--sh),0 0 40px -10px var(--glow)}
.book:active{transform:scale(.97)}
.book:focus-visible{box-shadow:0 0 0 3px var(--amb)}
.cover{position:relative;aspect-ratio:3/4;background:var(--bg2);overflow:hidden}
.cover img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s var(--ease)}
.book:hover .cover img{transform:scale(1.04)}
.cover::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(180deg,transparent 60%,rgba(22,16,12,.55))}
.spine{position:absolute;left:0;top:0;bottom:0;width:8px;z-index:2;background:linear-gradient(90deg,rgba(0,0,0,.45),rgba(255,255,255,.07) 60%,transparent)}
.nocover{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:20px;text-align:center;font:600 16px/1.25 var(--serif);color:var(--amb);background:radial-gradient(circle at 30% 20%,#3a281a,var(--bg2))}
.nocover svg{width:34px;height:34px;opacity:.8}
.badge{position:absolute;left:14px;top:10px;z-index:3;max-width:60%;padding:3px 9px;border-radius:99px;font-size:10px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;background:rgba(22,16,12,.65);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);color:var(--tx)}
.pill{position:absolute;right:10px;top:10px;z-index:3;padding:3px 10px;border-radius:99px;font-size:10px;font-weight:700;letter-spacing:.05em;text-transform:uppercase}
.pill.cont{background:linear-gradient(135deg,var(--amb),var(--cop));color:#20140a;box-shadow:0 4px 14px -2px var(--glow)}
.pill.new{background:rgba(22,16,12,.6);color:var(--mut);border:1px solid var(--line);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.bbody{display:flex;flex-direction:column;gap:3px;padding:12px 14px 14px;flex:1}
.btitle{font:600 16px/1.22 var(--serif);color:var(--tx)}
.bauthor{font-size:12px;color:var(--amb);opacity:.85}
.blurb{margin-top:4px;font-size:12.5px;line-height:1.45;color:var(--mut);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta{margin-top:auto;padding-top:8px;display:flex;justify-content:space-between;font-size:11px;color:var(--dim)}
.book.done .btitle::after{content:"";display:inline-block;width:6px;height:6px;margin-left:7px;border-radius:50%;background:var(--ok);vertical-align:middle}
.skel{border-radius:18px;background:var(--card);border:1px solid var(--line);padding-bottom:14px;overflow:hidden}
.skel .cover{aspect-ratio:3/4}
.skel .cover,.skel .ln{background:linear-gradient(100deg,var(--card) 30%,rgba(232,166,76,.1) 50%,var(--card) 70%);background-size:250% 100%;animation:shim 1.6s linear infinite}
.skel .ln{height:10px;margin:12px 14px 0;border-radius:6px}
.skel .ln.short{width:50%}
@keyframes shim{to{background-position:-150% 0}}
.empty{grid-column:1/-1;text-align:center;padding:60px 20px;color:var(--mut);line-height:1.8}
.empty svg{width:40px;height:40px;color:var(--amb);margin-bottom:10px}
.empty b{color:var(--tx);font:600 20px var(--serif)}

#usage{display:flex;align-items:center;justify-content:center;gap:8px;margin:44px 0 0;font-size:12px;color:var(--dim)}
.pulse{width:7px;height:7px;border-radius:50%;background:var(--amb);box-shadow:0 0 10px var(--amb);animation:pul 2s ease-in-out infinite}
@keyframes pul{50%{opacity:.35;transform:scale(.7)}}

#reader{position:fixed;inset:0;z-index:30;background:radial-gradient(80% 50% at 50% 0,#2b1d12,var(--bg) 70%);display:flex;flex-direction:column;animation:fadein .45s var(--ease)}
#reader[hidden]{display:none}
@keyframes fadein{from{opacity:0;transform:scale(1.02)}}
#rbar{display:flex;align-items:center;gap:10px;padding:calc(8px + env(safe-area-inset-top)) 14px 8px;background:rgba(22,16,12,.6);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);z-index:3}
#back{display:flex;align-items:center;gap:2px;padding:8px 12px 8px 6px;border-radius:12px;color:var(--amb);font-weight:500;font-size:14px;transition:transform .25s var(--ease),background .25s}
#back:active{transform:scale(.94);background:rgba(232,166,76,.1)}
#rtitle{flex:1;min-width:0;text-align:center;font:600 15px var(--serif);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#rprog{min-width:56px;text-align:right;font-size:12px;font-variant-numeric:tabular-nums;color:var(--mut)}
#rtrack{height:3px;background:rgba(255,226,190,.08);z-index:3}
#rtrackfill{display:block;height:100%;width:0;border-radius:0 3px 3px 0;background:linear-gradient(90deg,var(--cop),var(--amb));box-shadow:0 0 12px var(--amb);background-size:200% 100%;animation:shim 3s linear infinite;transition:width .5s var(--ease)}
#pages{flex:1;overflow-y:auto;scroll-snap-type:y mandatory;overscroll-behavior:contain;scroll-behavior:smooth;outline:0;scrollbar-width:none}
#pages::-webkit-scrollbar{display:none}
.page{min-height:100%;height:100%;scroll-snap-align:start;scroll-snap-stop:always;display:flex;flex-direction:column;justify-content:center;gap:14px;max-width:640px;margin:0 auto;padding:28px 64px 90px 24px}
.page>*{animation:rise .6s var(--ease) both}
.page .eyebrow,.page .kind,.page .tag{align-self:flex-start;padding:4px 12px;border-radius:99px;font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--amb);background:rgba(232,166,76,.1);border:1px solid rgba(232,166,76,.25)}
.page h2,.page h3,.page .ptitle{margin:0;font:600 clamp(28px,6vw,40px)/1.12 var(--serif);letter-spacing:-.01em}
.page p,.page .body{margin:0;font-size:clamp(16px,2.4vw,18.5px);line-height:1.65;color:#e4d4bf}
.page .example,.page blockquote{margin:4px 0 0;padding:14px 16px;border-left:3px solid var(--amb);border-radius:4px 14px 14px 4px;background:rgba(232,166,76,.07);color:var(--mut);font-size:15px;font-style:italic}
.page.k-hook h2,.page.k-hook .ptitle{font-size:clamp(32px,7vw,48px);color:var(--amb);text-shadow:0 0 40px var(--glow)}
.page.k-numbers h2,.page.k-stat h2{color:var(--amb)}
.page.k-myth .eyebrow,.page.k-myth .kind{color:var(--bad);border-color:rgba(224,138,110,.3);background:rgba(224,138,110,.1)}
.page.k-quiz .eyebrow,.page.k-quiz .kind{color:var(--ok);border-color:rgba(156,207,138,.3);background:rgba(156,207,138,.1)}
.opts{display:flex;flex-direction:column;gap:10px;margin-top:6px}
.opt{display:flex;align-items:center;gap:12px;width:100%;padding:14px 16px;text-align:left;border-radius:16px;background:var(--card);border:1px solid var(--line);box-shadow:var(--sh);font-size:15px;line-height:1.35;transition:transform .3s var(--ease),border-color .3s,background .3s,box-shadow .4s}
.opt:hover{border-color:rgba(232,166,76,.4)}
.opt:active{transform:scale(.975)}
.opt .l,.opt .letter,.opt b{flex:none;width:28px;height:28px;display:grid;place-items:center;border-radius:50%;background:rgba(255,226,190,.08);font-size:12px;font-weight:600;color:var(--mut)}
.opt.ok{border-color:var(--ok);background:rgba(156,207,138,.12);box-shadow:0 0 0 1px var(--ok),0 0 34px -4px rgba(156,207,138,.4);animation:pop .5s var(--ease)}
.opt.bad{border-color:rgba(224,138,110,.6);background:rgba(224,138,110,.1);animation:nudge .4s var(--ease)}
.opt.ok svg,.opt.bad svg{width:20px;height:20px;margin-left:auto}
.opt.ok svg{color:var(--ok)}.opt.bad svg{color:var(--bad)}
.opt[disabled]{cursor:default}
@keyframes pop{40%{transform:scale(1.025)}}
@keyframes nudge{30%{transform:translateX(-4px)}60%{transform:translateX(3px)}}
.exp{max-height:0;opacity:0;overflow:hidden;margin:0;padding:0 16px;border-radius:14px;background:rgba(232,166,76,.08);border:1px solid transparent;color:#e4d4bf;font-size:14.5px;transition:all .45s var(--ease)}
.exp.show{max-height:300px;opacity:1;padding:14px 16px;margin-top:4px;border-color:rgba(232,166,76,.25)}
.page button.more,.page .gen,.page .outro button{align-self:flex-start;display:inline-flex;align-items:center;gap:8px;padding:14px 22px;border-radius:99px;font-weight:600;color:#20140a;background:linear-gradient(135deg,var(--amb),var(--cop));box-shadow:0 10px 30px -8px var(--glow);transition:transform .3s var(--ease)}
.page button.more:active,.page .gen:active,.page .outro button:active{transform:scale(.95)}
.page button:disabled{opacity:.6}

#dots{position:absolute;right:16px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:7px;z-index:4;max-height:60vh;overflow:hidden}
#dots i{width:6px;height:6px;border-radius:99px;background:rgba(255,226,190,.2);transition:all .4s var(--ease)}
#dots i.on{height:20px;background:var(--amb);box-shadow:0 0 10px var(--amb)}
#nav{position:absolute;right:calc(14px + env(safe-area-inset-right));bottom:calc(18px + env(safe-area-inset-bottom));display:flex;gap:10px;z-index:4}
#nav button{width:46px;height:46px;display:grid;place-items:center;border-radius:50%;color:var(--amb);background:rgba(38,27,20,.7);border:1px solid var(--line);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:var(--sh);transition:transform .3s var(--ease),opacity .3s}
#nav button:active{transform:scale(.88)}
#nav button:disabled{opacity:.3}
@media(min-width:900px){.page{padding-right:24px}#dots{right:calc(50% - 360px)}#nav{right:calc(50% - 360px)}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}
/* ---------- accounts ---------- */
#login{position:fixed;inset:0;z-index:60;display:grid;place-items:center;padding:20px;background:radial-gradient(90% 60% at 50% 0,#2b1d12,var(--bg) 70%)}
#login[hidden]{display:none}
.login-card{width:min(400px,100%);background:linear-gradient(180deg,var(--card2),var(--card));border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:0 30px 80px -20px rgba(0,0,0,.7)}
.login-card h1,.login-card h2{font-family:Fraunces,Georgia,serif;font-size:30px;margin:6px 0}
.login-mark{width:40px;height:40px;color:var(--amb);filter:drop-shadow(0 0 12px var(--glow))}
.login-card label{display:block;font-size:13px;color:var(--mut);margin:14px 0 0}
.login-card input{width:100%;height:46px;margin-top:6px;padding:0 14px;border-radius:14px;background:rgba(255,226,190,.06);border:1px solid var(--line);color:var(--tx)}
.login-card input:focus{border-color:var(--amb);box-shadow:0 0 0 3px var(--glow);outline:0}
.login-card>button{width:100%;margin-top:18px;padding:14px;border-radius:99px;font-weight:700;color:#20140a;background:linear-gradient(135deg,var(--amb),var(--cop));box-shadow:0 10px 30px -8px var(--glow)}
.login-card>button:active{transform:scale(.97)}
.err{color:var(--bad);font-size:13px;min-height:20px;margin:10px 0 0}
#pwmodal{position:fixed;inset:0;z-index:70;display:grid;place-items:center;padding:20px;background:rgba(10,6,4,.7);backdrop-filter:blur(8px)}
#pwmodal[hidden]{display:none}
.mebtn{display:flex;align-items:center;gap:6px;height:36px;padding:0 12px;border-radius:12px;background:rgba(255,226,190,.06);border:1px solid var(--line);color:var(--mut);font-size:13px;font-weight:600}
.mebtn svg{width:16px;height:16px}
#admin{position:fixed;inset:0;z-index:30;overflow-y:auto;background:radial-gradient(90% 50% at 50% 0,#2b1d12,var(--bg) 70%);padding:calc(64px + env(safe-area-inset-top)) 16px 60px}
#admin[hidden]{display:none}
#abar{display:flex;align-items:center;gap:12px;max-width:640px;margin:0 auto 18px}
#abar button{display:flex;align-items:center;gap:6px;color:var(--amb);font-weight:600}
#abar button svg{width:18px;height:18px}
.admin-wrap{max-width:640px;margin:0 auto;display:grid;gap:14px}
.admin-wrap h2{font-family:Fraunces,Georgia,serif;font-size:22px}
.userow{display:flex;align-items:center;gap:10px;flex-wrap:wrap;background:linear-gradient(180deg,var(--card2),var(--card));border:1px solid var(--line);border-radius:16px;padding:12px 14px}
.userow b{font-size:15px}
.umeta{font-size:12.5px;color:var(--mut)}
.uact{margin-left:auto;display:flex;gap:8px}
.uact button{font-size:12.5px;font-weight:600;padding:8px 12px;border-radius:99px;border:1px solid var(--line);color:var(--tx)}
.uact .del{color:var(--bad)}
.newuser{display:grid;gap:10px;background:linear-gradient(180deg,var(--card2),var(--card));border:1px solid var(--line);border-radius:16px;padding:16px}
.newuser label{font-size:13px;color:var(--mut);display:grid;gap:6px}
.newuser input{height:44px;padding:0 12px;border-radius:12px;background:rgba(255,226,190,.06);border:1px solid var(--line);color:var(--tx)}
.newuser input:focus{border-color:var(--amb);outline:0}
.newuser button{padding:13px;border-radius:99px;font-weight:700;color:#20140a;background:linear-gradient(135deg,var(--amb),var(--cop))}