:root{
  --paper:#FAFAF7; --dot:#C9CBC6; --line:#E4E6E1; --ink:#1F2A44; --ui:#2B2F2D; --muted:#7C817D;
  --pill:rgba(255,255,255,.88); --pill-edge:rgba(30,40,35,.09); --accent:#2F7D6B; --accent-soft:#E3F0EC;
  --sheet:#FFFFFF; --danger:#B3402F; --shadow:0 8px 30px rgba(25,35,30,.10);
  --f:"Instrument Sans", -apple-system, "Segoe UI", system-ui, sans-serif;
  --f-read:"Newsreader", Georgia, "Times New Roman", serif;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --paper:#1B1D1C; --dot:#3B3F3C; --line:#2E322F; --ink:#E6E9F2; --ui:#E8EAE7; --muted:#8E948F;
  --pill:rgba(38,41,39,.88); --pill-edge:rgba(255,255,255,.08); --accent:#6CC3AC; --accent-soft:#22332E;
  --sheet:#232624; --danger:#E0806F; --shadow:0 8px 30px rgba(0,0,0,.45); color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#1B1D1C; --dot:#3B3F3C; --line:#2E322F; --ink:#E6E9F2; --ui:#E8EAE7; --muted:#8E948F;
  --pill:rgba(38,41,39,.88); --pill-edge:rgba(255,255,255,.08); --accent:#6CC3AC; --accent-soft:#22332E;
  --sheet:#232624; --danger:#E0806F; --shadow:0 8px 30px rgba(0,0,0,.45); color-scheme:dark}

html,body{height:100%}
html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;font-synthesis:none}
body{background:var(--paper);color:var(--ui);font-family:var(--f);overflow:hidden;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}
button,input{font-family:var(--f)}
#paper{position:fixed;inset:0;touch-action:none;cursor:crosshair}
canvas{position:absolute;inset:0;width:100%;height:100%}

.bar{position:fixed;display:flex;align-items:center;gap:2px;padding:4px;background:var(--pill);border:1px solid var(--pill-edge);border-radius:14px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow);transition:opacity .25s;z-index:5}
.bar.top-l{top:calc(12px + env(safe-area-inset-top,0px));left:max(16px, env(safe-area-inset-left,0px))}
.bar.top-r{top:calc(12px + env(safe-area-inset-top,0px));right:max(16px, env(safe-area-inset-right,0px))}
body.writing .bar,body.writing .head{opacity:.2}
.btn{appearance:none;border:0;background:none;color:var(--ui);height:38px;min-width:38px;padding:0 10px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;gap:6px;font:500 14px var(--f);cursor:pointer;white-space:nowrap}
.btn svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:none}
.btn:hover{background:var(--accent-soft)}
.btn:focus-visible,.field:focus-visible,.chipbtn:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
.btn[aria-pressed="true"]{background:var(--accent-soft);color:var(--accent)}
.btn.primary{background:var(--accent);color:var(--paper);padding:0 14px;font-weight:600}
.btn.primary:hover{filter:brightness(1.06)}
.btn.danger{color:var(--danger)}
.sep{width:1px;height:22px;background:var(--pill-edge);margin:0 4px}
.swatch{width:16px;height:16px;border-radius:50%;box-shadow:inset 0 0 0 1px var(--pill-edge)}
.lbl{font-size:12px;color:var(--muted);letter-spacing:.03em;padding:0 6px 0 2px}

.head{position:fixed;left:max(28px, calc(env(safe-area-inset-left,0px) + 28px));right:max(28px, calc(env(safe-area-inset-right,0px) + 28px));top:calc(66px + env(safe-area-inset-top,0px));display:flex;align-items:flex-end;gap:12px;z-index:3;transition:opacity .25s}
.title-in{flex:1;min-width:0;border:0;border-bottom:1px solid var(--dot);background:transparent;color:var(--ui);font:500 22px var(--f-read);padding:4px 0 6px;outline:none;-webkit-user-select:text;user-select:text}
.title-in::placeholder{color:var(--muted);font-weight:500}
.title-in:focus{border-bottom-color:var(--accent)}
.chipbtn{appearance:none;border:0;cursor:pointer;font:600 12px var(--f);letter-spacing:.02em;padding:6px 12px;border-radius:999px;background:var(--accent-soft);color:var(--accent);display:inline-flex;align-items:center;gap:6px;white-space:nowrap;margin-bottom:6px}
.chipbtn.empty{background:transparent;color:var(--muted);box-shadow:inset 0 0 0 1px var(--dot)}
.date{font:500 12px var(--f);color:var(--muted);letter-spacing:.06em;white-space:nowrap;margin-bottom:10px;font-variant-numeric:tabular-nums}
.status{position:fixed;bottom:calc(16px + env(safe-area-inset-bottom,0px));left:max(28px, calc(env(safe-area-inset-left,0px) + 28px));font:500 12px var(--f);color:var(--muted);letter-spacing:.04em;pointer-events:none;z-index:2}
.page{position:fixed;bottom:calc(16px + env(safe-area-inset-bottom,0px));right:max(28px, calc(env(safe-area-inset-right,0px) + 28px));font:500 12px var(--f);color:var(--muted);letter-spacing:.06em;pointer-events:none;z-index:2;font-variant-numeric:tabular-nums}
.hint{position:fixed;left:50%;top:46%;transform:translate(-50%,-50%);text-align:center;color:var(--muted);pointer-events:none;transition:opacity .4s;z-index:1;width:min(80vw,360px)}
.hint p{font:italic 400 22px/1.35 var(--f-read);margin:0 0 6px;color:var(--ui);opacity:.55}
.hint small{font-size:13px}

.pop{position:fixed;z-index:12;width:min(280px,calc(100vw - 32px));background:var(--sheet);border-radius:14px;box-shadow:var(--shadow),0 0 0 1px var(--pill-edge);padding:6px;display:flex;flex-direction:column;gap:2px}
.pop .opt{display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;border:0;background:none;color:var(--ui);font:500 14px var(--f);padding:10px 10px;border-radius:10px;cursor:pointer;text-align:left}
.pop .opt:hover,.pop .opt.sel{background:var(--accent-soft)}
.pop .opt.sel{color:var(--accent)}
.pop .opt small{color:var(--muted);font-weight:500}
.pop .new{display:flex;gap:6px;padding:6px 4px 2px;border-top:1px solid var(--line);margin-top:4px}
.field{flex:1;min-width:0;border:1px solid var(--line);background:var(--paper);color:var(--ui);border-radius:10px;padding:9px 11px;font:500 14px var(--f);outline:none;-webkit-user-select:text;user-select:text}

.scrim{position:fixed;inset:0;background:rgba(15,20,18,.2);opacity:0;pointer-events:none;transition:opacity .25s;z-index:8}
.scrim.on{opacity:1;pointer-events:auto}
.sheet{position:fixed;left:0;right:0;bottom:0;max-height:84%;background:var(--sheet);border-radius:22px 22px 0 0;box-shadow:var(--shadow);transform:translateY(105%);transition:transform .32s cubic-bezier(.2,.8,.2,1);z-index:9;display:flex;flex-direction:column;-webkit-user-select:text;user-select:text}
.sheet.on{transform:none}
.sheet-inner{overflow:auto;padding-block:10px calc(24px + env(safe-area-inset-bottom,0px));padding-left:max(16px, env(safe-area-inset-left,0px));padding-right:max(16px, env(safe-area-inset-right,0px))}
.wrap{max-width:640px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.grab{width:38px;height:4px;border-radius:2px;background:var(--dot);margin:8px auto 4px}
.sample-flag{font-size:12px;color:var(--muted);background:var(--paper);border:1px dashed var(--dot);border-radius:10px;padding:8px 12px;line-height:1.5}
.meta-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.tag{font:500 12px var(--f);padding:5px 10px;border-radius:999px;color:var(--muted);box-shadow:inset 0 0 0 1px var(--line)}
.sheet .title-in{font-size:30px;font-weight:500}
.note-body{font:400 19px/1.6 var(--f-read);color:var(--ui);max-width:62ch}
.note-body p{margin:0 0 .8em;white-space:pre-line}
.ink-thumb{border-radius:12px;background:var(--paper);box-shadow:inset 0 0 0 1px var(--line);max-width:100%;height:auto;display:block}
.actions{display:flex;flex-wrap:wrap;gap:8px}
.actions .btn{box-shadow:inset 0 0 0 1px var(--line)}
.actions .btn.primary{box-shadow:none}

.drawer{position:fixed;top:0;bottom:0;left:0;width:min(380px,92vw);background:var(--sheet);box-shadow:var(--shadow);transform:translateX(-105%);transition:transform .3s cubic-bezier(.2,.8,.2,1);z-index:9;display:flex;flex-direction:column;padding-top:env(safe-area-inset-top,0px)}
.drawer.on{transform:none}
.drawer header{display:flex;align-items:center;justify-content:space-between;padding:14px 10px 6px max(20px, calc(env(safe-area-inset-left,0px) + 20px))}
.drawer h2{font:500 22px var(--f-read);margin:0}
.dtools{padding:4px 14px 8px max(14px, calc(env(safe-area-inset-left,0px) + 14px));display:flex;flex-direction:column;gap:10px}
.cats{display:flex;gap:6px;overflow-x:auto;padding-bottom:2px;scrollbar-width:none}
.cats::-webkit-scrollbar{display:none}
.cats .chipbtn{margin:0;background:transparent;color:var(--muted);box-shadow:inset 0 0 0 1px var(--line)}
.cats .chipbtn[aria-pressed="true"]{background:var(--accent-soft);color:var(--accent);box-shadow:none}
.lib{overflow:auto;flex:1;padding:0 10px calc(20px + env(safe-area-inset-bottom,0px)) max(10px, env(safe-area-inset-left,0px))}
.cat{font:600 11px var(--f);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);padding:16px 10px 6px;display:flex;justify-content:space-between;align-items:center}
.cat button{border:0;background:none;color:var(--muted);font:500 11px var(--f);letter-spacing:.04em;text-transform:none;cursor:pointer;padding:2px 4px;border-radius:6px}
.cat button:hover{color:var(--accent)}
.row{display:flex;align-items:center;gap:2px;border-radius:10px}
.row:hover{background:var(--accent-soft)}
.item{flex:1;min-width:0;text-align:left;border:0;background:none;color:var(--ui);padding:10px;cursor:pointer;font-family:var(--f)}
.item b{display:block;font:500 16px var(--f-read);margin-bottom:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.item span{font-size:12px;color:var(--muted)}
.row .more{opacity:.55}
.row:hover .more{opacity:1}
.ex{font:600 9px var(--f);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);border:1px solid var(--line);border-radius:4px;padding:1px 4px;margin-left:6px;vertical-align:2px}
.empty-lib{padding:32px 16px;text-align:center;color:var(--muted);font-size:14px;line-height:1.5}

.confirm{display:flex;flex-direction:column;gap:10px;padding:10px}
.confirm p{margin:0;font:500 14px/1.45 var(--f)}
.confirm .actions{justify-content:flex-end}

.toast{position:fixed;left:50%;bottom:calc(28px + env(safe-area-inset-bottom,0px));transform:translate(-50%,20px);background:var(--ui);color:var(--paper);font:500 14px var(--f);padding:10px 16px;border-radius:12px;opacity:0;transition:.25s;z-index:20;pointer-events:none;max-width:calc(100vw - 32px)}
.toast.on{opacity:1;transform:translate(-50%,0)}

.btn:disabled{opacity:.6;cursor:progress}
.auth{position:fixed;inset:0;z-index:30;background:var(--paper);display:grid;place-items:center;padding-block:24px;padding-left:max(16px, env(safe-area-inset-left,0px));padding-right:max(16px, env(safe-area-inset-right,0px))}
.auth-card{width:min(400px,100%);display:flex;flex-direction:column;gap:14px}
.auth h1{font:500 40px var(--f-read);margin:0;letter-spacing:-.01em}
.auth p{margin:0;color:var(--muted);font-size:15px;line-height:1.5}
.auth form{display:flex;flex-direction:column;gap:10px;margin-top:8px}
.auth .field{padding:13px 14px;font-size:16px}
.auth .btn{height:46px}
.auth-msg{min-height:1.5em}
.auth .skip{color:var(--muted);font-weight:500}
.acct{font-size:12px;color:var(--muted);max-width:180px;overflow:hidden;text-overflow:ellipsis}
@media (max-width:560px){ .hide-sm{display:none} .date{display:none} .head{top:calc(62px + env(safe-area-inset-top,0px))} }
@media (prefers-reduced-motion:reduce){*{transition:none!important}}