/* Leet Drive on the web. Same family as /leet-drive/ (Roboto, slanted LEET wordmark, lime #B8FF3A on near-black from the
   app icon). Every colour is a token with a dark and a light value; data-theme on <html> overrides the system choice. */
:root{
  --onacct:#0f1210;
  color-scheme:dark;
  --bg:#0c0e0d;--bg2:#111412;--panel:#131614;--card:#181c19;--card2:#1e231f;--hi:rgba(220,240,205,.06);--hi2:rgba(220,240,205,.10);
  --line:rgba(220,240,205,.09);--line2:rgba(220,240,205,.17);
  --text:#e9eee5;--dim:#b3bcac;--faint:#7d8778;
  --acc:#b8ff3a;--accfg:#0f1210;--acct:#c8ff6a;--accsoft:rgba(184,255,58,.11);--accline:rgba(184,255,58,.38);
  --warn:#ffc46b;--warnsoft:rgba(255,196,107,.12);--bad:#ff8f86;--badsoft:rgba(255,143,134,.12);
  --paper:#1f2420;--shadow:0 24px 60px rgba(0,0,0,.5);--shadow2:0 8px 24px rgba(0,0,0,.35);
  --glow0:rgba(184,255,58,.16);--glow1:rgba(184,255,58,0);--dot:rgba(220,240,205,.07);
  --r:14px;--side:268px;--pvw:min(440px,38vw);
}
:root[data-theme="light"]{
  --onacct:#ffffff;
  color-scheme:light;
  --bg:#f5f6f2;--bg2:#eceee8;--panel:#fbfbf9;--card:#ffffff;--card2:#f3f4ef;--hi:rgba(25,40,10,.045);--hi2:rgba(25,40,10,.08);
  --line:rgba(25,40,10,.10);--line2:rgba(25,40,10,.18);
  --text:#151912;--dim:#4a5244;--faint:#737b6c;
  --acc:#b8ff3a;--accfg:#0f1210;--acct:#3b6500;--accsoft:rgba(120,190,0,.13);--accline:rgba(80,140,0,.45);
  --warn:#8a5600;--warnsoft:rgba(200,130,0,.12);--bad:#b3261e;--badsoft:rgba(179,38,30,.09);
  --paper:#ffffff;--shadow:0 24px 60px rgba(40,55,20,.16);--shadow2:0 8px 24px rgba(40,55,20,.10);
  --glow0:rgba(150,230,20,.30);--glow1:rgba(150,230,20,0);--dot:rgba(25,40,10,.07);
}
@media (prefers-color-scheme:light){:root:not([data-theme="dark"]){
  --onacct:#ffffff;
  color-scheme:light;
  --bg:#f5f6f2;--bg2:#eceee8;--panel:#fbfbf9;--card:#ffffff;--card2:#f3f4ef;--hi:rgba(25,40,10,.045);--hi2:rgba(25,40,10,.08);
  --line:rgba(25,40,10,.10);--line2:rgba(25,40,10,.18);
  --text:#151912;--dim:#4a5244;--faint:#737b6c;
  --acc:#b8ff3a;--accfg:#0f1210;--acct:#3b6500;--accsoft:rgba(120,190,0,.13);--accline:rgba(80,140,0,.45);
  --warn:#8a5600;--warnsoft:rgba(200,130,0,.12);--bad:#b3261e;--badsoft:rgba(179,38,30,.09);
  --paper:#ffffff;--shadow:0 24px 60px rgba(40,55,20,.16);--shadow2:0 8px 24px rgba(40,55,20,.10);
  --glow0:rgba(150,230,20,.30);--glow1:rgba(150,230,20,0);--dot:rgba(25,40,10,.07);
}}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--text);font:400 15px/1.5 Roboto,"Segoe UI",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
[hidden]{display:none!important}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer}
a{color:var(--acct)}
h1,h2,h3{margin:0;font-weight:600;letter-spacing:-.01em}
.sprite{position:absolute;width:0;height:0;overflow:hidden}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.i{width:20px;height:20px;flex:none;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
:focus-visible{outline:2.5px solid var(--acct);outline-offset:2px;border-radius:10px}
.skip{position:absolute;left:12px;top:-60px;z-index:90;background:var(--acc);color:var(--accfg);padding:10px 16px;border-radius:99px;text-decoration:none;font-weight:600}
.skip:focus{top:12px}
kbd{font:500 11.5px/1 "IBM Plex Mono",ui-monospace,monospace;padding:4px 6px;border-radius:6px;border:1px solid var(--line2);border-bottom-width:2px;color:var(--dim);background:var(--card)}

/* brand */
.brand{display:flex;align-items:flex-end;gap:8px;text-decoration:none;color:var(--text)}
.brand .rm{width:30px;height:30px;align-self:center;border-radius:8px;box-shadow:0 0 0 1px var(--line)}
.brand .wm{height:18px;width:auto;aspect-ratio:303/84;fill:currentColor;stroke:currentColor;stroke-width:2.2;stroke-linejoin:round}
.brand small{font:600 12px/1 Roboto;letter-spacing:2.6px;text-transform:uppercase;color:var(--dim);padding-bottom:1px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid var(--line2);background:var(--card);border-radius:99px;padding:9px 16px;font-weight:500;font-size:14.5px;transition:background .18s,border-color .18s,transform .12s,box-shadow .18s;white-space:nowrap}
.btn:hover{background:var(--card2);border-color:var(--line2)}
.btn:active{transform:scale(.98)}
.btn.primary{background:var(--acc);color:var(--accfg);border-color:transparent;font-weight:600}
.btn.primary:hover{box-shadow:0 6px 22px var(--glow0);background:var(--acc)}
.btn.ghost{background:transparent}
.btn.ghost:hover{background:var(--hi)}
.btn.big{width:100%;padding:13px 18px;font-size:15.5px}
.btn .g{width:20px;height:20px;background:#fff;border-radius:50%;padding:2px}
.btn[disabled]{opacity:.45;pointer-events:none}
.icon-btn{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;border:1px solid transparent;background:transparent;color:var(--dim);transition:background .18s,color .18s}
.icon-btn:hover{background:var(--hi2);color:var(--text)}
.link{background:none;border:0;padding:0;color:var(--acct);font-weight:500;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.pill{font-size:11.5px;font-weight:600;letter-spacing:.4px;text-transform:uppercase;padding:3px 8px;border-radius:99px;background:var(--accsoft);color:var(--acct)}
.note{font-size:14px;color:var(--warn);background:var(--warnsoft);padding:10px 12px;border-radius:12px;margin:12px 0 0}
.fine{font-size:13px;color:var(--faint);margin:16px 0 0}

/* ============================================================ gate */
.gate{position:relative;min-height:100%;display:flex;flex-direction:column;align-items:center;padding:16px 16px 20px;overflow:hidden}
.gate-bg{position:absolute;inset:0;z-index:0;pointer-events:none;background:radial-gradient(900px 520px at 50% 18%,var(--accsoft),transparent 70%),radial-gradient(circle,var(--dot) 1px,transparent 1.4px) 0 0/22px 22px;mask-image:radial-gradient(1100px 760px at 50% 30%,#000 40%,transparent 85%);-webkit-mask-image:radial-gradient(1100px 760px at 50% 30%,#000 40%,transparent 85%)}
.gate>*{position:relative;z-index:1}
.gate-top{width:min(1120px,100%);display:flex;align-items:center;justify-content:space-between;padding:6px 4px}
.gate-card{width:min(440px,100%);margin:auto;padding:12px 0 24px;text-align:center}
.gate-card h1{font-size:clamp(28px,4.6vw,38px);line-height:1.12;letter-spacing:-.02em}
.gate-card h2{font-size:24px;line-height:1.2}
.lead{color:var(--dim);margin:12px auto 0;max-width:38ch;font-size:15.5px}
.actions{display:grid;gap:10px;margin:26px 0 0}
.facts{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:12px;text-align:left}
.facts li{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:var(--dim);padding:12px 14px;border:1px solid var(--line);border-radius:var(--r);background:color-mix(in srgb,var(--card) 70%,transparent)}
.facts .i{color:var(--acct);margin-top:1px}
.facts b{color:var(--text);font-weight:600}
.gate-foot{display:flex;gap:18px;flex-wrap:wrap;justify-content:center;font-size:13px;color:var(--faint)}
.gate-foot a{color:var(--dim)}
.gate-foot .link{color:var(--dim)}
@media (min-width:900px){
  .step[data-step="start"] .facts{width:min(900px,calc(100vw - 48px));margin-left:50%;transform:translateX(-50%);grid-template-columns:repeat(3,1fr);margin-top:34px}
  .step[data-step="start"] .facts li{flex-direction:column;gap:8px;padding:16px 18px}
  .facts .i{width:22px;height:22px}
}
.step{animation:rise .5s cubic-bezier(.2,.8,.2,1) both}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

/* hero art */
.hero{width:200px;height:160px;margin:4px auto 10px}
.hero-art{width:100%;height:100%;overflow:visible}
.hg0{stop-color:var(--glow0)}.hg1{stop-color:var(--glow1)}
.orbit{transform-origin:100px 86px;animation:spin 16s linear infinite}
.orbit-ring{fill:none;stroke:var(--line2);stroke-width:1;stroke-dasharray:2 6}
.orbit-dot{fill:var(--acc)}.orbit-dot.o2{opacity:.5}
@keyframes spin{to{transform:rotate(360deg)}}
.f-back{fill:var(--card2);stroke:var(--accline);stroke-width:1.4}
.f-flap{fill:var(--card);stroke:var(--acct);stroke-width:2.2;transform-origin:100px 120px;transition:transform .7s cubic-bezier(.3,1.4,.4,1)}
.keyhole{fill:var(--acct);transform-origin:100px 94px;animation:pulse 2.6s ease-in-out infinite}
@keyframes pulse{50%{opacity:.55;transform:scale(.92)}}
.folder{animation:float 6s ease-in-out infinite}
@keyframes float{50%{transform:translateY(-4px)}}
body.unlocking .f-flap{transform:perspective(300px) rotateX(-38deg)}
body.unlocking .keyhole{animation:turn .7s cubic-bezier(.3,1.4,.4,1) forwards}
@keyframes turn{to{transform:rotate(90deg) scale(1.15)}}
body.busy .keyhole{animation:pulse 1s ease-in-out infinite}
body.shake .gate-card .pin{animation:shake .42s}
@keyframes shake{20%{transform:translateX(-9px)}40%{transform:translateX(8px)}60%{transform:translateX(-5px)}80%{transform:translateX(3px)}}

.spinner{width:34px;height:34px;margin:6px auto 18px;border-radius:50%;border:3px solid var(--line2);border-top-color:var(--acc);animation:spin .9s linear infinite}

/* pin */
.who{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--dim);padding:6px 8px 6px 12px;border:1px solid var(--line);border-radius:99px;margin-bottom:16px;max-width:100%}
.who .i{width:17px;height:17px;color:var(--acct)}
.who span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.who .link{margin-left:4px;font-size:13px;padding:2px 6px}
.pin{position:relative;margin:24px auto 0;width:max-content;max-width:100%}
.pin-input{position:absolute;inset:0;width:100%;height:58px;opacity:0;border:0;caret-color:transparent;z-index:2;font-size:16px;letter-spacing:40px}
.pin-boxes{display:flex;gap:10px;justify-content:center}
.pin-boxes i{width:46px;height:58px;border-radius:14px;border:1.5px solid var(--line2);background:var(--card);display:grid;place-items:center;transition:border-color .15s,background .15s,transform .15s}
.pin-boxes i::after{content:"";width:12px;height:12px;border-radius:50%;background:var(--text);transform:scale(0);transition:transform .18s cubic-bezier(.3,1.6,.5,1)}
.pin-boxes i.on::after{transform:scale(1)}
.pin-boxes i.cur{border-color:var(--acct);box-shadow:0 0 0 4px var(--accsoft)}
.pin:focus-within .pin-boxes i.cur{border-color:var(--acct)}
body.busy .pin-boxes i{border-color:var(--accline)}
body.busy .pin-boxes i::after{background:var(--acct)}
.pin-bar{height:3px;border-radius:3px;background:var(--line);margin:16px auto 0;width:60%;overflow:hidden;opacity:0;transition:opacity .2s}
.pin-bar span{display:block;height:100%;width:35%;border-radius:3px;background:var(--acc);animation:slide 1.1s ease-in-out infinite}
body.busy .pin-bar{opacity:1}
@keyframes slide{from{transform:translateX(-100%)}to{transform:translateX(290%)}}
.pin-msg{min-height:22px;margin:10px 0 0;font-size:14px;color:var(--dim)}
.pin-msg.bad{color:var(--bad)}
.pad{display:grid;grid-template-columns:repeat(3,64px);gap:10px;justify-content:center;margin:16px auto 0}
.pad button{height:52px;border-radius:16px;border:1px solid var(--line);background:color-mix(in srgb,var(--card) 80%,transparent);font-size:20px;font-weight:500;display:grid;place-items:center;transition:background .15s,transform .1s}
.pad button:hover{background:var(--card2)}
.pad button:active{transform:scale(.94);background:var(--accsoft)}
@media (hover:hover) and (pointer:fine) and (min-width:700px){.pad{display:none}}

.problem-ico{width:56px;height:56px;margin:0 auto 16px;border-radius:18px;display:grid;place-items:center;background:var(--warnsoft);color:var(--warn)}
.problem-ico .i{width:28px;height:28px}

/* ============================================================ app */
.app{display:grid;grid-template-columns:var(--side) minmax(0,1fr);height:100vh;height:100dvh;animation:appin .55s cubic-bezier(.2,.8,.2,1) both}
.app.with-pv{grid-template-columns:var(--side) minmax(0,1fr) var(--pvw)}
@keyframes appin{from{opacity:0;transform:scale(.985)}to{opacity:1;transform:none}}

.side{display:flex;flex-direction:column;min-height:0;background:var(--panel);border-right:1px solid var(--line)}
.side-top{display:flex;align-items:center;justify-content:space-between;padding:16px 14px 10px 18px}
.side-close{display:none}
.nav{flex:1;overflow:auto;padding:6px 10px 16px}
.nav-item,.tree-row{width:100%;display:flex;align-items:center;gap:11px;padding:8px 10px;border-radius:10px;border:0;background:transparent;text-align:left;color:var(--dim);font-size:14.5px;font-weight:500;transition:background .15s,color .15s}
.nav-item:hover,.tree-row:hover{background:var(--hi);color:var(--text)}
.nav-item.on,.tree-row.on{background:var(--accsoft);color:var(--text)}
.nav-item.on .i,.tree-row.on .i{color:var(--acct)}
.nav-item span,.tree-row span{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.nav-item em,.tree-row em{font-style:normal;font-size:12.5px;color:var(--faint);font-variant-numeric:tabular-nums}
.nav-item em.warn{color:var(--warn)}
.nav-h{font-size:11.5px;font-weight:600;letter-spacing:1.2px;text-transform:uppercase;color:var(--faint);margin:18px 10px 6px}
.tree-row{padding-left:calc(6px + var(--d,0) * 16px)}
.tree-row .tw{width:18px;height:18px;display:grid;place-items:center;color:var(--faint);border-radius:5px;flex:none}
.tree-row .tw .i{width:14px;height:14px;transition:transform .18s}
.tree-row.open .tw .i{transform:rotate(90deg)}
.tree-row .tw.none{visibility:hidden}
.tree-row>.i{width:18px;height:18px}
.side-foot{border-top:1px solid var(--line);padding:12px 14px 14px}
.acct{display:flex;gap:10px;align-items:center;min-width:0}
.acct .i{color:var(--acct)}
.acct div{min-width:0;display:flex;flex-direction:column}
.acct b{font-size:13.5px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.acct span{font-size:12.5px;color:var(--faint)}
.side-links{display:flex;gap:12px;align-items:center;margin-top:10px;font-size:13px}
.side-links .link{color:var(--dim)}

.main{display:flex;flex-direction:column;min-width:0;min-height:0}
.bar{display:flex;align-items:center;gap:12px;padding:12px 20px;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 85%,transparent);backdrop-filter:blur(12px)}
.menu-btn{display:none}
.search{flex:1;max-width:620px;display:flex;align-items:center;gap:10px;height:42px;padding:0 10px 0 14px;border-radius:99px;background:var(--card);border:1px solid var(--line);transition:border-color .15s,box-shadow .15s}
.search:focus-within{border-color:var(--accline);box-shadow:0 0 0 4px var(--accsoft)}
.search .i{color:var(--faint)}
.search input{flex:1;min-width:0;border:0;background:transparent;outline:0;font-size:14.5px}
.search input::placeholder{color:var(--faint)}
.search input::-webkit-search-cancel-button{display:none}
.bar-tools{display:flex;align-items:center;gap:8px;margin-left:auto}
.sort select{height:40px;border-radius:12px;border:1px solid var(--line);background:var(--card);padding:0 30px 0 12px;font-size:14px;color:var(--dim);appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,currentColor 50%),linear-gradient(135deg,currentColor 50%,transparent 50%);background-position:calc(100% - 16px) 18px,calc(100% - 11px) 18px;background-size:5px 5px;background-repeat:no-repeat}
.seg{display:flex;border:1px solid var(--line);border-radius:12px;padding:3px;background:var(--card)}
.seg button{width:34px;height:32px;display:grid;place-items:center;border:0;border-radius:9px;background:transparent;color:var(--faint)}
.seg button.on{background:var(--hi2);color:var(--text)}
.btn.lock{padding:9px 14px}
.btn.lock:hover{border-color:var(--accline)}

.content{flex:1;overflow:auto;padding:20px 24px 40px;scroll-padding:80px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:2px;font-size:13.5px;color:var(--faint);min-height:22px}
.crumbs button{border:0;background:none;color:var(--faint);padding:2px 6px;border-radius:7px}
.crumbs button:hover{background:var(--hi);color:var(--text)}
.crumbs .i{width:14px;height:14px}
.head-row{display:flex;align-items:baseline;gap:12px;margin:4px 0 16px}
.head-row h1{font-size:26px;letter-spacing:-.02em}
.count{color:var(--faint);font-size:14px}

/* folder strips + nested subfolders: same look and geometry as the Android app (DocSortBar.kt / DocFolderUi.kt):
   strips with 2px gaps, big folder glyph (no chip) in the theme accent or the folder's own colour, rounded L lines
   in the plain left gutter. Line x / strip left come from app.js (glyphAt). */
.folders{--tree:color-mix(in srgb,var(--faint) 58%,var(--bg));--strip:color-mix(in srgb,var(--text) 7%,var(--bg));display:flex;flex-direction:column;margin-bottom:22px;max-width:780px}
.folders:empty{display:none}
.frow{position:relative;padding-bottom:2px}
.frow .vl{position:absolute;left:var(--x);top:0;bottom:0;width:2px;transform:translateX(-1px);background:var(--tree)}
.frow .elbow{position:absolute;left:var(--x);top:0;height:calc(50% - 1px + 1px);width:var(--w);transform:translateX(-1px);border-left:2px solid var(--tree);border-bottom:2px solid var(--tree);border-bottom-left-radius:10px}
.frow.d1,.frow.d2,.frow.d3{animation:rowin .3s cubic-bezier(.2,.8,.2,1) both}
@keyframes rowin{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
.ftile{margin-left:var(--left,0);display:flex;align-items:center;min-height:54px;padding:4px 16px 4px 11px;background:var(--strip);cursor:pointer;transition:background .15s;border-radius:4px}
.frow.d2 .ftile{min-height:50px}.frow.d3 .ftile{min-height:48px}
.frow:not(.d1):not(.d2):not(.d3) .ftile{border-radius:4px}
.folders>.frow.d0:first-child .ftile{border-top-left-radius:18px;border-top-right-radius:18px}
.folders>.frow.d0:last-child .ftile{border-bottom-left-radius:18px;border-bottom-right-radius:18px}
.frow.d1 .ftile,.frow.d2 .ftile,.frow.d3 .ftile{border-radius:0}
.folders>.frow:last-child .ftile{border-bottom-right-radius:18px}
.ftile:hover{background:color-mix(in srgb,var(--strip) 80%,var(--text) 6%)}
.ftile:focus-visible{outline-offset:-2px}
.ftile .fi{position:relative;width:48px;height:48px;display:grid;place-items:center;flex:none;border:0;padding:0;background:transparent;color:var(--acct)}
.ftile.tinted .fi{color:var(--fc)}
.ftile .fi .solid{width:44px;height:44px;fill:currentColor;stroke:none}
.ftile .fi.has{cursor:pointer;border-radius:12px;transition:transform .15s}
.ftile .fi.has:active{transform:scale(.9)}
.ftile .fi em{position:absolute;left:50%;top:50%;transform:translate(calc(-50% + 1.4px),calc(-50% + 3.9px));font:700 12px/1 Roboto,sans-serif;font-style:normal;color:var(--onacct);pointer-events:none}
.ftile.tinted .fi em{color:var(--fon)}
.ftile .fname{flex:1;min-width:0;display:flex;flex-direction:column;margin-left:14px}
.ftile b{font-weight:600;font-size:16px;line-height:1.3;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ftile .go{width:22px;height:22px;color:var(--dim);flex:none}
.ftile span{font-size:12.5px;color:var(--dim)}
.tree-row .solid{fill:currentColor;stroke:none;width:18px;height:18px;color:var(--faint)}
.tree-row.on .solid{color:var(--acct)}
.card.tinted .tx{background:var(--fc)}
.card.tinted .tt,.card.tinted .sub,.card.tinted .meta2{color:var(--fon)}
.card.tinted .sub{opacity:.85}

/* paper cards */
.papers.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(196px,1fr));gap:16px}
.card{position:relative;display:flex;flex-direction:column;border-radius:var(--r);border:1px solid var(--line);background:var(--card);overflow:hidden;text-align:left;padding:0;transition:border-color .18s,transform .18s,box-shadow .18s;animation:cardin .4s cubic-bezier(.2,.8,.2,1) both;animation-delay:calc(var(--n,0) * 28ms)}
@keyframes cardin{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.card:hover{border-color:var(--line2);transform:translateY(-2px);box-shadow:var(--shadow2)}
.card.sel{border-color:var(--accline);box-shadow:0 0 0 3px var(--accsoft)}
.card .th{position:relative;aspect-ratio:4/3;background:var(--card2);display:grid;place-items:center;overflow:hidden}
.card .th::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,transparent 30%,var(--hi2) 50%,transparent 70%) -100% 0/200% 100%;animation:shimmer 1.4s infinite}
.card .th.ok::before,.card .th.none::before{display:none}
@keyframes shimmer{to{background-position:100% 0}}
.card .th.ok .ph{display:none}
.card .th img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:left top;opacity:0;transform:scale(1.03);transition:opacity .35s,transform .5s}
.card .th.ok img{opacity:1;transform:none}
.card .th .ph{color:var(--faint)}
.card .th .ph .i{width:34px;height:34px;stroke-width:1.3}
.card .pg{position:absolute;right:8px;bottom:8px;font-size:11.5px;font-weight:600;padding:2px 7px;border-radius:99px;background:color-mix(in srgb,var(--bg) 78%,transparent);color:var(--dim);backdrop-filter:blur(6px)}
.card .tx{padding:11px 13px 13px;display:flex;flex-direction:column;gap:3px;min-width:0}
.card .tt{font-weight:600;font-size:14.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.card .sub{font-size:12.5px;color:var(--faint);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chip{display:inline-flex;align-items:center;gap:5px;font-size:11.5px;font-weight:600;padding:2px 8px;border-radius:99px;margin-top:5px;width:max-content;max-width:100%}
.chip.exp{background:var(--badsoft);color:var(--bad)}
.chip.soon{background:var(--warnsoft);color:var(--warn)}
.chip.ok{background:var(--hi);color:var(--dim)}
.chip .i{width:13px;height:13px}

.papers.list{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--card)}
.papers.list .card{flex-direction:row;align-items:center;border:0;border-radius:0;border-bottom:1px solid var(--line);gap:14px;padding:8px 14px;animation-delay:calc(var(--n,0) * 14ms)}
.papers.list .card:last-child{border-bottom:0}
.papers.list .card:hover{transform:none;box-shadow:none;background:var(--hi)}
.papers.list .card.sel{box-shadow:inset 3px 0 0 var(--acc);background:var(--accsoft)}
.papers.list .th{width:52px;height:40px;aspect-ratio:auto;border-radius:8px;flex:none}
.papers.list .th .ph .i{width:20px;height:20px}
.papers.list .pg{display:none}
.papers.list .tx{flex:1;flex-direction:row;align-items:center;gap:16px;padding:0}
.papers.list .tt{flex:1.4;min-width:0}
.papers.list .sub{flex:1;min-width:0}
.papers.list .chip{margin:0;flex:none}
.papers.list .meta2{font-size:12.5px;color:var(--faint);width:70px;text-align:right;flex:none}
.papers.grid .meta2{display:none}

.empty{max-width:420px;margin:60px auto;text-align:center;color:var(--dim)}
.empty .ei{width:64px;height:64px;margin:0 auto 14px;border-radius:20px;display:grid;place-items:center;background:var(--hi);color:var(--faint)}
.empty .ei .i{width:30px;height:30px}
.empty h2{font-size:19px;color:var(--text);margin-bottom:6px}

/* preview */
.pv{display:flex;flex-direction:column;min-height:0;border-left:1px solid var(--line);background:var(--panel);animation:pvin .35s cubic-bezier(.2,.8,.2,1) both;overflow:auto}
@keyframes pvin{from{opacity:0;transform:translateX(24px)}to{opacity:1;transform:none}}
.pv-head{display:flex;align-items:center;gap:8px;padding:12px 10px 10px 18px;position:sticky;top:0;background:var(--panel);z-index:2}
.pv-back{display:none}
.pv-title{flex:1;min-width:0}
.pv-title h2{font-size:17px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pv-title span{font-size:13px;color:var(--faint)}
.pv-stage{position:relative;margin:4px 16px 0;border-radius:var(--r);background:var(--card2);border:1px solid var(--line);min-height:260px;display:grid;place-items:center;overflow:hidden}
.pv-stage img{max-width:100%;max-height:62vh;display:block;animation:fade .3s ease both}
.pv-stage iframe{width:100%;height:62vh;border:0;background:#fff;display:block}
.pv-stage .msg{padding:30px 20px;text-align:center;color:var(--dim);font-size:14px}
.pv-stage .spinner{margin:0}
@keyframes fade{from{opacity:0}to{opacity:1}}
.pv-pages{display:flex;gap:8px;padding:10px 16px 0;overflow-x:auto}
.pv-pages:empty{display:none}
.pv-pages button{flex:none;height:30px;min-width:30px;padding:0 9px;border-radius:9px;border:1px solid var(--line);background:var(--card);font-size:13px;color:var(--dim);font-weight:500}
.pv-pages button.on{border-color:var(--accline);background:var(--accsoft);color:var(--text)}
.pv-actions{display:flex;gap:8px;padding:14px 16px 4px;flex-wrap:wrap}
.pv-actions .btn{flex:1}
.pv-meta{margin:10px 16px 24px;display:grid;grid-template-columns:auto 1fr;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.pv-meta dt,.pv-meta dd{margin:0;padding:10px 14px;border-bottom:1px solid var(--line);font-size:14px}
.pv-meta dt{color:var(--faint);white-space:nowrap}
.pv-meta dd{min-width:0;overflow-wrap:anywhere;display:flex;align-items:center;gap:6px;justify-content:space-between}
.pv-meta dt:nth-last-child(2),.pv-meta dd:last-child{border-bottom:0}
.pv-meta .num{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:13.5px;letter-spacing:.3px}
.pv-meta .mini{display:flex;gap:2px}
.pv-meta .mini button{width:30px;height:30px;border-radius:8px;border:0;background:transparent;color:var(--faint);display:grid;place-items:center}
.pv-meta .mini button:hover{background:var(--hi2);color:var(--text)}
.pv-meta .mini .i{width:17px;height:17px}

.scrim{display:none}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:80;background:var(--text);color:var(--bg);padding:11px 18px;border-radius:99px;font-size:14px;font-weight:500;box-shadow:var(--shadow);animation:rise .3s both;max-width:calc(100% - 32px)}

/* dialogs */
.dlg{border:1px solid var(--line2);border-radius:20px;background:var(--panel);color:var(--text);padding:24px;width:min(460px,calc(100% - 32px));box-shadow:var(--shadow)}
.dlg::backdrop{background:rgba(0,0,0,.45);backdrop-filter:blur(3px)}
.dlg h2{font-size:20px;margin-bottom:14px}
.dlg p{color:var(--dim);font-size:14px;margin:0 0 12px}
.dlg form{display:flex;justify-content:flex-end;margin-top:18px}
.keys{display:grid;grid-template-columns:auto 1fr;gap:10px 18px;margin:0;align-items:center}
.keys dt{white-space:nowrap}
.keys dd{margin:0;color:var(--dim);font-size:14px}
.hashes{margin:0;display:grid;grid-template-columns:auto 1fr;gap:6px 12px;font-size:12px}
.hashes dt{color:var(--dim);font-weight:500}
.hashes dd{margin:0;font-family:"IBM Plex Mono",ui-monospace,monospace;color:var(--faint);overflow-wrap:anywhere}

/* ============================================================ narrow */
@media (max-width:1180px){:root{--pvw:min(400px,42vw)}.bar .sort{display:none}}
@media (max-width:980px){
  .app,.app.with-pv{grid-template-columns:minmax(0,1fr)}
  .side{position:fixed;inset:0 auto 0 0;width:min(300px,86vw);z-index:60;transform:translateX(-102%);transition:transform .3s cubic-bezier(.2,.8,.2,1);box-shadow:var(--shadow)}
  .app.drawer .side{transform:none}
  .app.drawer .scrim{display:block;position:fixed;inset:0;z-index:55;background:rgba(0,0,0,.42)}
  .side-close,.menu-btn{display:grid}
  .pv{position:fixed;inset:0;z-index:70;border:0}
  .pv-back{display:grid}.pv-close{display:none}
  .pv-stage img{max-height:none}
  .pv-stage iframe{height:72vh}
}
@media (max-width:640px){
  .bar{padding:10px 12px;gap:6px}
  .bar .seg,.bar .theme-btn{display:none}
  .btn.lock span{display:none}
  .btn.lock{width:42px;height:42px;padding:0}
  .search kbd{display:none}
  .content{padding:14px 16px 32px}
  .head-row h1{font-size:22px}
  .papers.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .card .tx{padding:9px 10px 11px}
  .card .tt{font-size:13.5px}
  .papers.list .sub,.papers.list .meta2{display:none}
  .pin-boxes{gap:7px}
  .pin-boxes i{width:42px;height:54px}
  .gate-card h1{font-size:28px}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}