/* "2050": spatial-computing look. Floating smoked-glass panels with iridescent light edges over a slowly drifting
   photo, a soft light that follows the pointer, HUD micro-labels and large tight headlines.
   Deliberately one look (dark glass) in light and dark mode: it reads best over the photos.
   System fonts only and no inline styles (the security policy blocks both); the pointer light is set from JS
   through CSS variables, which the policy allows. */
:root{
  color-scheme:dark;
  --panel:rgba(10,14,24,.62); --panel-strong:rgba(10,14,24,.80); --panel-soft:rgba(255,255,255,.06);
  --ink:#eef3ff; --muted:#9fb0cc; --faint:#6f7f9c; --line:rgba(255,255,255,.10);
  --hover:rgba(140,220,255,.08); --sel:rgba(140,220,255,.12);
  --cyan:#6ef0ff; --violet:#8f8cff; --pink:#ff9ad5;
  --iri:linear-gradient(120deg,var(--cyan),var(--violet) 45%,#c99bff 70%,var(--pink));
  --edge:linear-gradient(140deg,rgba(255,255,255,.40),rgba(110,240,255,.12) 35%,rgba(255,255,255,.04) 60%,rgba(255,154,213,.28));
  --accent:var(--cyan); --accent-ink:#06101c; --hl:rgba(255,230,120,.28);
  --solid:#6ee7a8; --likely:#ffd479; --thin:#ff8a8a; --private:#c9b6ff;
  --shadow:0 30px 80px rgba(0,0,0,.45),0 8px 24px rgba(0,0,0,.30);
  --glow:0 0 0 1px rgba(110,240,255,.45),0 0 30px rgba(110,240,255,.18);
  --radius:26px;
  --ui:ui-sans-serif,system-ui,-apple-system,"SF Pro Display","Segoe UI Variable","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;
  --mx:50%; --my:30%;
  --bar:rgba(10,14,24,.94); --bar-solid:rgba(10,14,24,.97); --page-solid:rgba(10,14,24,.90); --option-bg:#0c111c;
  --render-ink:#dfe7f6; --code-ink:#bff8ff; --code-bg:rgba(110,240,255,.10);
  --photo:saturate(1.15) brightness(.82);
  --veil:linear-gradient(180deg,rgba(3,6,14,.55),rgba(3,6,14,.10) 35%,rgba(3,6,14,.45));
  --c-red:#ff8a8a; --c-orange:#ffb86b; --c-green:#6ee7a8; --c-blue:#7cc4ff; --c-purple:#c9a2ff; --c-gray:#9fb0cc;
  --h-yellow:rgba(255,224,102,.30); --h-green:rgba(110,231,168,.25); --h-blue:rgba(124,196,255,.25); --h-pink:rgba(255,154,213,.28); --h-orange:rgba(255,184,107,.28);
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0; color:var(--ink); font-family:var(--ui); font-size:15px; line-height:1.55; -webkit-font-smoothing:antialiased;
  padding-block:env(safe-area-inset-top,0px) env(safe-area-inset-bottom,0px); background:#05080f; overflow-x:hidden}

/* living background: photo drifts slowly; vignette and a pointer-following light on top */
body::before{content:""; position:fixed; inset:-4%; z-index:-2; background-size:cover; background-position:center;
  transform:scale(1.04); filter:var(--photo)}
body.bg-study::before{background-image:url("/static/bg/study.webp")}
body.bg-planet::before{background-image:url("/static/bg/planet.webp")}
body.bg-plain::before{background:radial-gradient(1200px 800px at 20% 10%,#1b2a55,transparent 60%),radial-gradient(900px 700px at 90% 90%,#3a1f4f,transparent 60%),#070b14}
body::after{content:""; position:fixed; inset:0; z-index:-1; pointer-events:none;
  background:radial-gradient(520px circle at var(--mx) var(--my),rgba(110,240,255,.10),transparent 60%),
             var(--veil)}

button,input,textarea,select{font:inherit; color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--cyan); outline-offset:2px}
[hidden]{display:none!important}
code{font-family:var(--mono); font-size:.84em; background:var(--code-bg); color:var(--code-ink); padding:1px 6px; border-radius:6px}
::selection{background:rgba(143,140,255,.45)}

/* LIGHT VERSION: white frosted glass, dark ink, same iridescent edges, tuned for contrast.
   Applies when the device prefers light (theme Auto) or when Light is chosen; Dark overrides both. */
:root[data-theme="light"]{
  color-scheme:light;
  --panel:rgba(255,255,255,.66); --panel-strong:rgba(255,255,255,.86); --panel-soft:rgba(15,23,42,.04);
  --ink:#0f172a; --muted:#475569; --faint:#64748b; --line:rgba(15,23,42,.10);
  --hover:rgba(37,99,235,.06); --sel:rgba(14,165,233,.12);
  --cyan:#0e7490; --violet:#6366f1; --pink:#db2777;
  --iri:linear-gradient(120deg,#67e8f9,#a5b4fc 45%,#d8b4fe 70%,#f9a8d4);
  --edge:linear-gradient(140deg,rgba(255,255,255,.95),rgba(34,211,238,.45) 35%,rgba(255,255,255,.55) 60%,rgba(244,114,182,.45));
  --accent:#0e7490; --accent-ink:#0b1020; --hl:rgba(250,204,21,.38);
  --solid:#15803d; --likely:#b45309; --thin:#dc2626; --private:#7c3aed;
  --shadow:0 24px 60px rgba(15,23,42,.18),0 6px 18px rgba(15,23,42,.10);
  --glow:0 0 0 1px rgba(8,145,178,.45),0 0 26px rgba(34,211,238,.20);
  --bar:rgba(255,255,255,.95); --bar-solid:rgba(255,255,255,.98); --page-solid:rgba(255,255,255,.92); --option-bg:#ffffff;
  --render-ink:#1e293b; --code-ink:#0e7490; --code-bg:rgba(8,145,178,.08);
  --photo:saturate(1.05) brightness(1.02);
  --veil:linear-gradient(180deg,rgba(255,255,255,.10),rgba(255,255,255,0) 35%,rgba(255,255,255,.18));
  --c-red:#c5221f; --c-orange:#c25700; --c-green:#137333; --c-blue:#1a5fd0; --c-purple:#7b2fd6; --c-gray:#5f6368;
  --h-yellow:#fff2a8; --h-green:#d2f2d8; --h-blue:#d6e4fd; --h-pink:#fbd7e6; --h-orange:#fde1c6;
}
:root[data-theme="light"] body{background:#e9eef6}
:root[data-theme="light"] .brand{filter:none}
:root[data-theme="light"] body.bg-plain::before{background:radial-gradient(1100px 760px at 15% 10%,#cfe8ff,transparent 60%),radial-gradient(900px 700px at 90% 90%,#f3dcff,transparent 60%),#eef2f8}
:root[data-theme="light"] .btn.danger.solid{color:#fff; background:linear-gradient(120deg,#e11d48,#f43f5e)}
:root[data-theme="light"] .confirm{background:rgba(225,29,72,.08); border-color:rgba(225,29,72,.35); box-shadow:none}
:root[data-theme="light"] .auth-box .qr{box-shadow:var(--shadow)}

/* the glass surface: translucent fill, blur, and a thin iridescent edge */
.pane,.auth-box,.capture input,header .btn,.toast{
  border:1px solid transparent;
  background:linear-gradient(var(--panel),var(--panel)) padding-box,var(--edge) border-box;
  -webkit-backdrop-filter:blur(16px); backdrop-filter:blur(16px);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08)}

/* sign-in and setup */
body.auth{display:grid; place-items:center; padding-inline:16px}
.auth-box{width:min(440px,100%); border-radius:30px; padding:32px; margin-block:24px}
.auth-box h1{font-size:1.4rem; letter-spacing:-.02em; margin:.5em 0}
.auth-box p{color:var(--muted)}
.auth-box .qr{display:block; margin:14px auto; background:#fff; padding:12px; border-radius:16px; max-width:100%; height:auto; box-shadow:var(--glow)}
.stack{display:grid; gap:14px}
.stack label{display:grid; gap:6px; font-family:var(--mono); font-size:.68rem; letter-spacing:.16em; text-transform:uppercase; color:var(--muted)}
.stack input{padding:12px 16px; border:1px solid var(--line); border-radius:14px; background:var(--panel-soft); color:var(--ink);
  font-family:var(--ui); font-size:1rem; letter-spacing:0; text-transform:none}
.stack input:focus{border-color:rgba(110,240,255,.55); box-shadow:var(--glow); outline:none}
.err{color:var(--thin); margin:0}
.small{font-size:.85rem; color:var(--muted)}

/* layout */
.app{height:100%; display:grid; grid-template-rows:auto 1fr; padding-inline:18px; max-width:1360px; margin:0 auto}
header{display:flex; flex-wrap:wrap; gap:10px 12px; align-items:center; padding-block:18px 16px}
.brand{font-size:1.5rem; font-weight:800; letter-spacing:-.04em;
  background:var(--iri); background-size:200% 100%; -webkit-background-clip:text; background-clip:text; color:transparent;
  filter:drop-shadow(0 2px 14px rgba(110,240,255,.25))}
.auth-box .brand{font-size:1.2rem}
.capture{flex:1 1 340px; display:flex; gap:8px; min-width:0}
.capture input{flex:1; min-width:0; padding:13px 22px; border-radius:999px; font-size:1rem}
.capture input::placeholder{color:var(--faint)}
.capture input:focus{outline:none; box-shadow:var(--shadow),var(--glow)}

.btn{border:1px solid var(--line); background:var(--panel-soft); padding:10px 18px; border-radius:999px; font-size:.9rem; font-weight:600;
  white-space:nowrap; letter-spacing:.01em; transition:transform .15s, box-shadow .2s, background .2s, border-color .2s}
.btn:hover{transform:translateY(-1px); border-color:rgba(110,240,255,.45); box-shadow:var(--glow)}
.btn:active{transform:translateY(0)}
.btn.primary{background:var(--iri); background-size:200% 100%; color:var(--accent-ink); border-color:transparent; font-weight:700;
  box-shadow:0 8px 30px rgba(143,140,255,.35)}
.btn.quiet{background:transparent; border-color:transparent; color:var(--muted); box-shadow:none}
.btn.quiet:hover{background:var(--hover); color:var(--ink); transform:none}
.btn.danger{color:var(--thin)}
.btn:disabled{opacity:.45; cursor:default; transform:none}

.panes{min-height:0; display:grid; grid-template-columns:230px minmax(0,310px) minmax(0,1fr); gap:16px; margin-bottom:18px; perspective:1600px}
.pane{min-height:0; overflow-y:auto; border-radius:var(--radius); scrollbar-width:thin; scrollbar-color:rgba(255,255,255,.18) transparent}
.homes{padding:14px 10px}
.label{font-family:var(--mono); font-size:.66rem; letter-spacing:.2em; text-transform:uppercase; color:var(--faint); font-weight:500}
.homes .label{display:block; margin:6px 12px 10px}
.home{display:flex; justify-content:space-between; align-items:center; width:100%; text-align:left; border:0; background:transparent;
  padding:10px 12px; border-radius:14px; font-weight:600; color:var(--muted); transition:background .2s, color .2s, box-shadow .2s}
.home:hover{background:var(--hover); color:var(--ink)}
.home[aria-current="true"]{background:var(--sel); color:var(--ink); box-shadow:var(--glow)}
.home .n{font-family:var(--mono); font-size:.72rem; color:var(--faint); min-width:22px; text-align:right}
.badge{font-family:var(--mono); font-size:.6rem; letter-spacing:.12em; text-transform:uppercase; margin-left:8px; font-weight:500}
.badge.private{color:var(--private)} .badge.agent{color:var(--cyan)}
.homes .foot{display:grid; gap:2px; margin-top:18px; padding-top:12px; border-top:1px solid var(--line)}
.homes .foot .btn{text-align:left; width:100%}
.hud{margin:14px 12px 4px; font-family:var(--mono); font-size:.62rem; letter-spacing:.14em; text-transform:uppercase; color:var(--faint); line-height:1.9}
.hud i{display:inline-block; width:6px; height:6px; border-radius:50%; background:var(--solid); box-shadow:0 0 10px var(--solid); margin-right:8px; vertical-align:1px}

.list-head{padding:14px; display:grid; gap:12px; position:sticky; top:0; z-index:1; border-bottom:1px solid var(--line);
  background:var(--bar)}
.list-head input{width:100%; padding:10px 16px; border:1px solid var(--line); border-radius:999px; background:var(--panel-soft)}
.list-head input::placeholder{color:var(--faint)}
.list-head input:focus{outline:none; border-color:rgba(110,240,255,.5); box-shadow:var(--glow)}
.row{display:flex; justify-content:space-between; align-items:center; gap:8px; flex-wrap:wrap}
#items{padding:8px; display:grid; grid-template-columns:minmax(0,1fr); gap:6px}
.item{display:block; width:100%; min-width:0; text-align:left; border:1px solid transparent; background:var(--panel-soft); padding:12px 14px; border-radius:16px;
  transition:transform .18s, background .2s, box-shadow .2s, border-color .2s}
.item:hover{transform:translateY(-2px); background:var(--hover); border-color:var(--line)}
.item[aria-current="true"]{background:var(--sel); box-shadow:var(--glow)}
.item b{display:-webkit-box; -webkit-box-orient:vertical; -webkit-line-clamp:2; line-clamp:2; overflow:hidden;
  font-weight:650; letter-spacing:-.01em; overflow-wrap:anywhere}
.item span{display:block; font-size:.84rem; color:var(--muted); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; margin-top:3px}
.item time{font-family:var(--mono); font-size:.64rem; letter-spacing:.1em; text-transform:uppercase; color:var(--faint)}
.empty{padding:18px; color:var(--muted); font-size:.9rem}

.page{display:flex; flex-direction:column}
.page-bar{display:flex; flex-wrap:wrap; gap:8px; align-items:center; padding:12px 16px; border-bottom:1px solid var(--line);
  position:sticky; top:0; z-index:3; background:var(--bar)}
.page-bar .path{font-family:var(--mono); font-size:.66rem; letter-spacing:.12em; text-transform:uppercase; color:var(--faint); margin-right:auto; overflow-wrap:anywhere}
.seg{display:inline-flex; border:1px solid var(--line); border-radius:999px; overflow:hidden; background:var(--panel-soft); padding:2px}
.seg button{border:0; background:transparent; padding:6px 14px; font-size:.84rem; color:var(--muted); font-weight:600; border-radius:999px}
.seg button[aria-pressed="true"]{background:var(--iri); color:var(--accent-ink)}
select.file{padding:8px 14px; border:1px solid var(--line); border-radius:999px; background:var(--panel-soft); font-size:.84rem; color:var(--ink)}
select.file option{background:var(--option-bg); color:var(--ink)}
.doc{padding:30px clamp(18px,4vw,60px) 48px; max-width:82ch; width:100%}
.doc input.title{width:100%; border:0; background:transparent; font-size:clamp(1.9rem,3.2vw,2.6rem); font-weight:800; letter-spacing:-.04em; padding:0; margin-bottom:16px; color:var(--ink)}
.doc input.title:focus{outline:none}
.note-title{font-size:clamp(1.9rem,3.2vw,2.6rem); font-weight:800; letter-spacing:-.04em; line-height:1.12; margin:0 0 18px; overflow-wrap:anywhere}
.saved{font-family:var(--mono); font-size:.64rem; letter-spacing:.14em; text-transform:uppercase; color:var(--faint)}
.hint{font-size:.8rem; color:var(--faint); margin-top:12px}

/* rendered notes */
.render{font-size:1.02rem; line-height:1.75; overflow-wrap:anywhere; color:var(--render-ink)}
.render table{border-collapse:collapse; display:block; overflow-x:auto; max-width:100%; font-size:.92rem; margin:.8em 0}
.render th,.render td{border:1px solid var(--line); padding:7px 11px; text-align:left}
.render th{background:var(--panel-soft)}
.render img{max-width:100%; height:auto; border-radius:14px}
.wl{color:var(--cyan); border:0; border-bottom:1px solid rgba(110,240,255,.5); background:none; padding:0; font:inherit; cursor:pointer}
.wl:hover{text-shadow:0 0 12px rgba(110,240,255,.6)}
.wl.missing{color:var(--pink); border-bottom-style:dashed}
.tag{font-family:var(--mono); font-size:.72em; letter-spacing:.06em; color:var(--cyan); background:rgba(110,240,255,.10); padding:2px 9px; border-radius:999px}
.conf{font-family:var(--mono); font-size:.64em; letter-spacing:.12em; text-transform:uppercase; font-weight:600; padding:2px 8px; border-radius:6px; border:1px solid currentColor; vertical-align:2px}
.conf.solid{color:var(--solid)} .conf.likely{color:var(--likely)} .conf.thin{color:var(--thin)}
mark{background:var(--hl); color:inherit; padding:0 3px; border-radius:4px}
.pill{display:inline-flex; gap:6px; align-items:center; font-family:var(--mono); font-size:.64rem; letter-spacing:.14em; text-transform:uppercase;
  border-radius:999px; padding:5px 12px; margin-bottom:16px; border:1px solid currentColor}
.pill.private{color:var(--private)} .pill.agent{color:var(--cyan)}
.backlinks{margin-top:40px; border-top:1px solid var(--line); padding-top:16px; font-size:.92rem}
.backlinks ul{margin:10px 0 0; padding:0; list-style:none; display:grid; gap:8px}
.confirm{display:flex; flex-wrap:wrap; gap:10px; align-items:center; justify-content:space-between; padding:14px 18px; margin-bottom:18px;
  border-radius:18px; background:rgba(255,90,110,.12); border:1px solid rgba(255,138,138,.45); box-shadow:0 0 30px rgba(255,90,110,.15); font-weight:600}
.btn.danger.solid{background:linear-gradient(120deg,#ff6b81,#ff9a8b); color:#1a0508; border-color:transparent}
.page-bar .btn.danger{background:transparent}
.page-bar .btn.danger:hover{background:rgba(255,90,110,.12); border-color:var(--thin); box-shadow:0 0 24px rgba(255,90,110,.25)}

/* security */
.sec{display:grid; gap:22px}
.sec table{width:100%; border-collapse:collapse; font-size:.86rem; margin-top:8px}
.sec td{padding:7px 6px; border-top:1px solid var(--line); font-variant-numeric:tabular-nums; color:var(--muted)}
.sec td.bad{color:var(--thin)}
.toast{position:fixed; left:50%; transform:translateX(-50%); bottom:calc(22px + env(safe-area-inset-bottom,0px)); color:var(--ink);
  padding:11px 20px; border-radius:999px; font-size:.9rem; font-weight:600; z-index:9; max-width:calc(100% - 32px)}
.back{display:none}

/* Quill editor */
.ql-snow .ql-editor.render{padding:0; font-size:1.02rem}
.ql-snow .ql-editor h1{font-size:1.8em; letter-spacing:-.03em} .ql-snow .ql-editor h2{font-size:1.4em; letter-spacing:-.02em} .ql-snow .ql-editor h3{font-size:1.15em}
.editor .ql-toolbar.ql-snow{border:1px solid var(--line); border-radius:18px 18px 0 0; background:var(--panel-strong); padding:8px 10px;
  position:sticky; top:60px; z-index:2; background:var(--bar-solid)}
.editor .ql-container.ql-snow{border:1px solid var(--line); border-top:0; border-radius:0 0 18px 18px; background:rgba(255,255,255,.03); font-family:var(--ui); font-size:1.02rem}
.editor .ql-container.ql-snow:focus-within{border-color:rgba(110,240,255,.4); box-shadow:var(--glow)}
.editor .ql-editor{min-height:52vh; padding:20px 22px; line-height:1.75; color:var(--ink); caret-color:var(--cyan)}
.editor .ql-editor.ql-blank::before{color:var(--faint); font-style:normal; left:22px}
.ql-snow .ql-stroke{stroke:var(--muted)} .ql-snow .ql-fill{fill:var(--muted)}
.ql-snow .ql-picker{color:var(--muted)}
.ql-snow .ql-picker-options{background:var(--bar-solid); border-color:var(--line)!important; border-radius:14px; box-shadow:var(--shadow)}
.ql-snow.ql-toolbar button{border-radius:9px}
.ql-snow.ql-toolbar button:hover{background:var(--hover)}
.ql-snow.ql-toolbar button:hover .ql-stroke,.ql-snow.ql-toolbar button.ql-active .ql-stroke,
.ql-snow .ql-picker-label:hover .ql-stroke,.ql-snow .ql-picker-label.ql-active .ql-stroke{stroke:var(--cyan)}
.ql-snow.ql-toolbar button:hover .ql-fill,.ql-snow.ql-toolbar button.ql-active .ql-fill{fill:var(--cyan)}
.ql-snow.ql-toolbar button.ql-active,.ql-snow .ql-picker-label.ql-active,.ql-snow .ql-picker-item.ql-selected,
.ql-snow .ql-picker-label:hover,.ql-snow .ql-picker-item:hover{color:var(--cyan)}
.ql-snow .ql-tooltip{background:var(--panel-strong); color:var(--ink); border-color:var(--line); border-radius:14px; box-shadow:var(--shadow); z-index:5}
.ql-snow .ql-tooltip input[type=text]{background:var(--panel-soft); color:var(--ink); border-color:var(--line); border-radius:9px}
.ql-snow .ql-editor pre.ql-syntax,.ql-snow .ql-editor .ql-code-block-container{background:var(--code-bg); color:var(--code-ink); border-radius:12px; border:1px solid var(--line)}
.ql-snow .ql-editor blockquote{border-left:3px solid; border-image:var(--iri) 1; color:var(--muted)}
.ql-snow .ql-editor a{color:var(--cyan)}
#readBody li[data-list="checked"] > .ql-ui,#readBody li[data-list="unchecked"] > .ql-ui{cursor:pointer}

/* text colors and highlights, tuned for dark glass (classes: the security policy blocks inline styles) */
.ql-color-red{color:var(--c-red)} .ql-color-orange{color:var(--c-orange)} .ql-color-green{color:var(--c-green)}
.ql-color-blue{color:var(--c-blue)} .ql-color-purple{color:var(--c-purple)} .ql-color-gray{color:var(--c-gray)}
.ql-bg-yellow{background-color:var(--h-yellow)} .ql-bg-green{background-color:var(--h-green)} .ql-bg-blue{background-color:var(--h-blue)}
.ql-bg-pink{background-color:var(--h-pink)} .ql-bg-orange{background-color:var(--h-orange)}

.pane{min-width:0}
/* narrower windows: slimmer sidebar and list so the note keeps room */
@media (max-width:1150px) and (min-width:861px){ .panes{grid-template-columns:190px minmax(0,260px) minmax(0,1fr); gap:12px} }

/* phones: one pane at a time */
@media (max-width:860px){
  .panes{grid-template-columns:1fr}
  .panes[data-view="homes"] .list,.panes[data-view="homes"] .page,
  .panes[data-view="list"] .homes,.panes[data-view="list"] .page,
  .panes[data-view="page"] .homes,.panes[data-view="page"] .list{display:none}
  .back{display:inline-block}
  .doc{padding-inline:20px}
  .editor .ql-toolbar.ql-snow{top:56px}
  .editor .ql-editor{min-height:46vh}
  header .btn{padding:9px 14px}
  .pane,.capture input,header .btn{-webkit-backdrop-filter:blur(10px); backdrop-filter:blur(10px)}
  .page.pane{-webkit-backdrop-filter:none; backdrop-filter:none; background:linear-gradient(var(--page-solid),var(--page-solid)) padding-box,var(--edge) border-box}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none!important; transition:none!important}
}