:root{
  --bg:#f2f2f7; --bg2:#f7f7fa; --surface:#fff; --text:#1c1c1e; --text2:#6c6c70; --line:rgba(60,60,67,.16);
  --fill:rgba(120,120,128,.12); --fill2:rgba(120,120,128,.22); --glass:rgba(255,255,255,.72);
  --blue:#007aff; --student:#0a84ff; --reviewer:#2fa84f; --admin:#f08a00; --ai:#a550dc; --red:#e5372d;
  --serif:ui-serif,"New York","Iowan Old Style",Georgia,serif;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#000; --bg2:#1c1c1e; --surface:#1c1c1e; --text:#f5f5f7; --text2:#98989f; --line:rgba(84,84,88,.5);
  --fill:rgba(120,120,128,.24); --fill2:rgba(120,120,128,.36); --glass:rgba(28,28,30,.72);}
}
*{box-sizing:border-box;margin:0}
html{-webkit-text-size-adjust:100%}
body{font:16px/1.5 system-ui,-apple-system,"SF Pro Text",sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;min-height:100vh}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent}
input,textarea{font:inherit;color:inherit}
h1{font:700 34px/1.1 system-ui,-apple-system,sans-serif;letter-spacing:-.022em}

/* controls */
.btn{height:34px;padding:0 14px;border-radius:999px;background:var(--fill);font-weight:500;font-size:14px;white-space:nowrap;transition:background .12s,transform .1s}
.btn:active{transform:scale(.97);background:var(--fill2)}
.btn.primary{background:var(--blue);color:#fff}
.btn.primary:active{background:#0062cc}
.btn.quiet{background:none;color:var(--blue)}
.btn.sm{height:28px;padding:0 11px;font-size:13px}
.btn.big{height:48px;font-size:17px;width:100%}
.btn[disabled]{opacity:.4;pointer-events:none}
.seg{display:inline-flex;background:var(--fill);border-radius:10px;padding:2px;gap:2px;max-width:100%;overflow-x:auto;scrollbar-width:none}
.seg::-webkit-scrollbar{display:none}
.seg button{padding:5px 12px;border-radius:8px;font-size:13px;font-weight:500;color:var(--text2);white-space:nowrap;transition:background .15s,color .15s,transform .1s}
.seg button:active{transform:scale(.97)}
.seg button.on{background:var(--surface);color:var(--text);box-shadow:0 1px 3px rgba(0,0,0,.14)}
.seg button sup{font-size:10px;margin-left:3px;opacity:.7}
.seg.full{display:flex;width:100%}
.seg.full button{flex:1;padding:5px 4px}
.dot{display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--c);flex:none}
.tag{font-size:11px;font-weight:600;padding:1px 7px;border-radius:999px;background:var(--fill);color:var(--text2);letter-spacing:.01em}
.tag.warn{background:color-mix(in srgb,var(--admin) 20%,transparent);color:var(--admin)}

/* bars */
.bar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:12px;padding:10px 16px;background:var(--glass);backdrop-filter:blur(22px) saturate(180%);-webkit-backdrop-filter:blur(22px) saturate(180%);box-shadow:0 .5px 0 var(--line)}
.bar .grow{flex:1;min-width:0}
.bar .name{display:flex;align-items:center;gap:7px;font-size:14px;color:var(--text2)}
.bar.wrapbar{flex-wrap:wrap}
.title{font:600 24px/1.1 var(--serif);letter-spacing:-.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sub{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;max-width:1180px;margin:0 auto;padding:14px 16px 0}
.tools{display:flex;gap:6px;flex-wrap:wrap}

/* essays + team */
.wrap{max-width:1040px;margin:0 auto;padding:28px 16px 140px}
.titlerow{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;flex-wrap:wrap}
.titlerow .tools{align-items:center}
.filters{margin-bottom:20px;display:flex;gap:10px;flex-wrap:wrap}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.card{display:flex;flex-direction:column;text-align:left;min-height:176px;padding:20px;border-radius:20px;background:var(--surface);box-shadow:0 1px 2px rgba(0,0,0,.05),0 6px 20px rgba(0,0,0,.04);transition:transform .18s cubic-bezier(.2,.8,.2,1),box-shadow .18s}
.card:hover{box-shadow:0 2px 4px rgba(0,0,0,.06),0 12px 32px rgba(0,0,0,.08)}
.card:active{transform:scale(.985)}
.school{font:600 30px/1.1 var(--serif);letter-spacing:-.022em}
.pr{margin-top:8px;font-size:14px;color:var(--text2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.9em}
.meta{margin-top:auto;padding-top:16px;display:flex;gap:10px;align-items:center;font-size:13px;color:var(--text2);flex-wrap:wrap}
.meta .who{display:flex;align-items:center;gap:6px;color:var(--text);font-weight:500}
.meta .due{margin-left:auto}
.empty{grid-column:1/-1;text-align:center;color:var(--text2);padding:80px 0}
.rows{background:var(--surface);border-radius:18px;overflow:hidden}
.row{display:flex;align-items:center;gap:14px;padding:14px 18px;flex-wrap:wrap}
.row+.row{box-shadow:inset 0 .5px 0 var(--line)}
.avatar{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;font-weight:600;font-size:14px;color:#fff;background:var(--c);flex:none}
.row .nm{font-weight:600;min-width:120px;display:flex;align-items:center;gap:8px}
.chips{display:flex;gap:6px;flex-wrap:wrap;flex:1}
.chip{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 4px 0 10px;border-radius:999px;background:var(--fill);font-size:13px;font-weight:500}
.chip button{width:20px;height:20px;border-radius:50%;color:var(--text2);font-size:15px;line-height:1}
.chip button:active{background:var(--fill2)}
.count{color:var(--text2);font-size:13px}

/* essay */
.work{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:20px;max-width:1180px;margin:0 auto;padding:16px 16px 140px;align-items:start}
.page{background:var(--surface);border-radius:6px;box-shadow:0 1px 2px rgba(0,0,0,.06),0 10px 34px rgba(0,0,0,.06);padding:56px 64px 72px;min-height:620px;max-width:780px;width:100%;margin:0 auto}
.prompt{font:600 22px/1.3 var(--serif);letter-spacing:-.012em;margin-bottom:26px;outline:none}
.prompt:empty::before{content:"Prompt";color:var(--text2);opacity:.6}
.doc{font:19px/1.75 var(--serif);outline:none;white-space:pre-wrap;overflow-wrap:anywhere}
.doc[contenteditable]{caret-color:var(--blue)}
.editing{box-shadow:0 0 0 3px color-mix(in srgb,var(--blue) 30%,transparent);border-radius:6px}
mark{background:color-mix(in srgb,var(--c) 26%,transparent);color:inherit;border-radius:3px;box-shadow:0 2px 0 var(--c);cursor:pointer;transition:background .15s}
mark:hover{background:color-mix(in srgb,var(--c) 40%,transparent)}
.rail{position:sticky;top:76px;max-height:calc(100vh - 150px);overflow:auto;background:var(--surface);border-radius:18px;padding:12px;display:flex;flex-direction:column;gap:10px;box-shadow:0 1px 2px rgba(0,0,0,.05)}
.rail>*{flex:none}
.item{padding:12px;border-radius:14px;background:var(--bg2);display:flex;flex-direction:column;gap:8px;font-size:14px}
.item.flash{animation:flash 1s}
@keyframes flash{from{background:color-mix(in srgb,var(--blue) 22%,var(--bg2))}}
.item .who{display:flex;align-items:center;gap:7px}
.item .who b{font-weight:600}
.item .when{margin-left:auto}
.q{border-left:3px solid var(--c);padding-left:9px;color:var(--text2);font-style:italic;font-size:13px}
.rep{padding-left:12px;border-left:1px solid var(--line);display:flex;flex-direction:column;gap:2px}
.rep b{font-size:12px}
.pin{display:flex;gap:6px;align-items:flex-start;padding:8px 10px;border-radius:10px;background:color-mix(in srgb,var(--admin) 14%,transparent);font-size:13px}
.acts{display:flex;gap:4px;flex-wrap:wrap;margin:0 -6px -4px}
.acts button{padding:4px 8px;border-radius:8px;font-size:13px;font-weight:500;color:var(--blue)}
.acts button:active{background:var(--fill)}
.acts button.dim{color:var(--text2)}
.old{color:var(--text2);text-decoration:line-through;text-decoration-color:var(--red);font-family:var(--serif);font-size:15px}
.new{font-family:var(--serif);font-size:15px}
.new em,.old em{font-style:normal;color:var(--text2);font-family:system-ui;font-size:13px}
textarea,.field{width:100%;border:0;border-radius:12px;background:var(--surface);padding:10px 12px;font-size:15px;resize:vertical;box-shadow:inset 0 0 0 1px var(--line);outline:none}
textarea:focus,.field:focus{box-shadow:inset 0 0 0 2px var(--blue)}
.composer{display:flex;flex-direction:column;gap:8px;padding:12px;border-radius:14px;background:var(--bg2);box-shadow:inset 0 0 0 1.5px color-mix(in srgb,var(--blue) 50%,transparent)}
.composer .btns{display:flex;gap:8px;justify-content:flex-end}
.fact{display:flex;align-items:center;gap:10px;padding:12px;border-radius:14px;background:var(--bg2);font-size:14px}
.fact .t{flex:1}
.fact .btns{display:flex;gap:6px}
.status{position:fixed;left:0;right:0;bottom:0;z-index:20;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 16px calc(10px + env(safe-area-inset-bottom));font-size:13px;color:var(--text2);background:var(--glass);backdrop-filter:blur(22px) saturate(180%);-webkit-backdrop-filter:blur(22px) saturate(180%);box-shadow:0 -.5px 0 var(--line)}
.status .l,.status .r{display:flex;gap:14px;align-items:center}
.wc{font-weight:600;color:var(--text);font-variant-numeric:tabular-nums}
.wc.near{color:var(--admin)} .wc.over{color:var(--red)}
.lockedtag{display:inline-flex;gap:6px;align-items:center;height:34px;padding:0 12px;font-size:14px;font-weight:600;color:var(--text2)}

/* menus */
.pos{position:relative}
.menu{position:absolute;right:0;top:calc(100% + 8px);z-index:30;min-width:190px;background:var(--surface);border-radius:14px;box-shadow:0 0 0 .5px var(--line),0 12px 40px rgba(0,0,0,.2);padding:6px;transform-origin:top right;animation:pop .16s cubic-bezier(.2,.8,.2,1)}
@keyframes pop{from{opacity:0;transform:scale(.94)}}
.menu button{display:flex;align-items:center;gap:10px;width:100%;padding:10px 12px;border-radius:9px;font-size:15px;text-align:left}
.menu button:hover,.menu button:active{background:var(--fill)}
#selpill{position:fixed;display:none;z-index:40;gap:2px;padding:4px;border-radius:999px;background:rgba(28,28,30,.94);box-shadow:0 6px 24px rgba(0,0,0,.3);transform:translate(-50%,-100%);animation:pop .14s}
#selpill button{color:#fff;padding:6px 13px;border-radius:999px;font-size:14px;font-weight:500}
#selpill button:active{background:rgba(255,255,255,.2)}

/* sheet */
#scrim{position:fixed;inset:0;background:rgba(0,0,0,.34);z-index:50;display:none;opacity:0}
#sheet{position:fixed;left:50%;bottom:0;z-index:51;width:min(580px,100%);max-height:84vh;display:none;flex-direction:column;background:var(--glass);backdrop-filter:blur(30px) saturate(190%);-webkit-backdrop-filter:blur(30px) saturate(190%);border-radius:22px 22px 0 0;box-shadow:0 -1px 0 rgba(255,255,255,.4) inset,0 -12px 50px rgba(0,0,0,.22);will-change:transform;transform:translate(-50%,100%)}
@media (prefers-color-scheme:dark){#sheet{background:rgba(44,44,46,.82)}}
.grab{padding:8px 20px 6px;cursor:grab;touch-action:none;user-select:none;text-align:center}
.grab:active{cursor:grabbing}
.grab i{display:block;width:38px;height:5px;border-radius:3px;background:var(--fill2);margin:0 auto 8px}
.grab b{font-size:17px;font-weight:600}
.sbody{overflow:auto;padding:6px 16px calc(20px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:10px}
.srow{display:flex;gap:12px;align-items:center;padding:12px 14px;border-radius:14px;background:var(--surface);font-size:15px}
.srow .t{flex:1;display:flex;flex-direction:column;gap:4px}
.srow.tap{width:100%;text-align:left}
.srow.tap:active{background:var(--fill)}
.check{margin-left:auto;color:var(--blue);font-weight:700}
.form{display:flex;flex-direction:column;gap:10px}
.form .two{display:flex;gap:10px}

/* sign in */
.sign{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:24px;max-width:380px;margin:0 auto}
.logo{font:600 56px/1 var(--serif);letter-spacing:-.03em;margin-bottom:18px}
.sign .field{height:50px;font-size:17px;text-align:center}
#code{font-size:26px;letter-spacing:.35em;text-indent:.35em}
#demo{position:fixed;right:12px;bottom:56px;z-index:45;display:flex;align-items:center;gap:8px;padding:5px 6px 5px 12px;border-radius:999px;background:var(--glass);backdrop-filter:blur(22px) saturate(180%);-webkit-backdrop-filter:blur(22px) saturate(180%);box-shadow:0 0 0 .5px var(--line),0 6px 24px rgba(0,0,0,.12);font-size:12px;font-weight:600;color:var(--text2)}
#demo .seg{background:transparent;padding:0}
#demo .seg button{display:flex;align-items:center;gap:6px;padding:5px 10px}
#toast{position:fixed;left:50%;bottom:90px;z-index:60;transform:translate(-50%,12px);opacity:0;pointer-events:none;padding:10px 18px;border-radius:999px;background:rgba(28,28,30,.92);color:#fff;font-size:14px;font-weight:500;transition:opacity .2s,transform .3s cubic-bezier(.2,.8,.2,1)}
#toast.on{opacity:1;transform:translate(-50%,0)}

@media (max-width:900px){
  .work{grid-template-columns:1fr}
  .rail{position:static;max-height:none}
  .page{padding:32px 24px 48px;min-height:400px}
  .doc{font-size:18px}
  h1{font-size:30px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}
  #toast{transform:translate(-50%,0)}
}
@media (prefers-reduced-transparency:reduce){
  .bar,.status,#sheet,#demo{backdrop-filter:none;-webkit-backdrop-filter:none;background:var(--surface)}
}

/* live app additions */
.set{max-width:560px;display:flex;flex-direction:column;gap:12px}
.set .field{text-align:left;height:46px}
.set .state{display:flex;align-items:center;gap:10px;padding:14px 16px;border-radius:14px;background:var(--surface);font-size:15px}
.set .state .t{flex:1}
.sign .field.left{text-align:left}
.sign .err{color:var(--red);font-size:14px;min-height:20px;text-align:center}
.loading{min-height:100vh;display:grid;place-items:center;color:var(--text2)}

/* YMwrite brand */
:root{--brand:#c8372d}
.brand{display:inline-flex;align-items:baseline;line-height:1;white-space:nowrap}
.brand .ym{height:.7em;width:auto;fill:var(--brand);margin-right:.06em;overflow:visible}
.brand .w{font-family:var(--serif);font-weight:500;letter-spacing:-.01em;position:relative}
.sign .brand{font-size:58px;margin-bottom:22px}
.bar .brand{font-size:21px;margin-right:6px}
#splash{position:fixed;inset:0;z-index:100;background:#1f2023;display:grid;place-items:center;opacity:0;visibility:hidden}
#splash.run{opacity:1;visibility:visible}
#splash.out{opacity:0;transition:opacity .32s ease}
#splash .brand{font-size:clamp(52px,12vw,104px);color:#fff;will-change:transform}
#splash .ym{opacity:0;transition:opacity .3s ease;will-change:transform}
#splash .w i{font-style:normal;opacity:0}
#splash .w i.on{opacity:1}
#splash .caret{position:absolute;left:0;bottom:-.02em;width:.055em;height:.78em;background:#fff;opacity:0}
#splash .caret.on{opacity:1;animation:blink .8s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.role{font-size:13px;color:var(--text2)}
@media (max-width:600px){
  .bar:not(.wrapbar){flex-wrap:wrap;row-gap:8px}
  .bar:not(.wrapbar) .grow{order:3;flex-basis:100%}
  .bar:not(.wrapbar) .brand{margin-right:auto}
}