/* ineedtostudy.com — "blue book": exam-paper ground, ballpoint ink, red pen and green ink for wrong and right. */

:root{
  --paper:#E7E9F1; --surface:#FCFCFE; --surface-2:#F1F3F9; --sunk:#DDE0EC;
  --ink:#13162A; --ink-2:#4A5069; --ink-3:#7C8299;
  --rule:#D3D7E5; --rule-2:#BCC2D6;
  --accent:#2F3FC0; --accent-2:#5566E0; --accent-soft:#E1E5FA; --on-accent:#FFFFFF;
  --mark:#B8860B; --mark-bright:#E8B10C; --mark-soft:#FAEDC6;
  --good:#0E7A56; --good-soft:#D9EFE6;
  --bad:#C0343E; --bad-soft:#F8DFE1;
  --lift:0 10px 26px -20px rgba(19,22,42,.75);
  --r:10px;
}
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]){
  --paper:#0D0F1C; --surface:#171A2A; --surface-2:#1F2335; --sunk:#111427;
  --ink:#E9EBF5; --ink-2:#A6ACC4; --ink-3:#787F9B;
  --rule:#2B3048; --rule-2:#3B4260;
  --accent:#8B97FF; --accent-2:#A3ADFF; --accent-soft:#232842; --on-accent:#0D0F1C;
  --mark:#F3C64B; --mark-bright:#F3C64B; --mark-soft:#35301B;
  --good:#3FC498; --good-soft:#12362C; --bad:#EF7580; --bad-soft:#3B1F23;
  --lift:0 10px 26px -18px rgba(0,0,0,.9);
}}
:root[data-theme="dark"]{
  --paper:#0D0F1C; --surface:#171A2A; --surface-2:#1F2335; --sunk:#111427;
  --ink:#E9EBF5; --ink-2:#A6ACC4; --ink-3:#787F9B;
  --rule:#2B3048; --rule-2:#3B4260;
  --accent:#8B97FF; --accent-2:#A3ADFF; --accent-soft:#232842; --on-accent:#0D0F1C;
  --mark:#F3C64B; --mark-bright:#F3C64B; --mark-soft:#35301B;
  --good:#3FC498; --good-soft:#12362C; --bad:#EF7580; --bad-soft:#3B1F23;
  --lift:0 10px 26px -18px rgba(0,0,0,.9);
}

*,*::before,*::after{box-sizing:border-box}
html,body{margin:0}
html{padding:env(safe-area-inset-top,0) 0 env(safe-area-inset-bottom,0)}
body{
  background:var(--paper); color:var(--ink);
  font-family:"Public Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:15px; line-height:1.5; -webkit-font-smoothing:antialiased;
}
img{max-width:100%}
[hidden]{display:none !important}
h1,h2,h3,.disp,.brand{font-family:"Familjen Grotesk","Public Sans",sans-serif; letter-spacing:-.015em; text-wrap:balance; margin:0}
p{margin:0}
.mono{font-family:"IBM Plex Mono",ui-monospace,SFMono-Regular,monospace; font-variant-numeric:tabular-nums}
button,input,textarea,select{font:inherit; color:inherit}
button{cursor:pointer; background:none; border:none; padding:0}
a{color:var(--accent)}
fieldset{border:none; padding:0; margin:0; min-width:0}
legend{padding:0}
:focus-visible{outline:2px solid var(--accent); outline-offset:2px; border-radius:4px}
@media (prefers-reduced-motion: reduce){ *{animation-duration:.01ms !important; transition-duration:.01ms !important} }

.skip{position:absolute; left:-9999px; top:0; background:var(--accent); color:var(--on-accent); padding:10px 16px; z-index:100}
.skip:focus{left:8px; top:8px}
.ml-auto{margin-left:auto}
.dim{color:var(--ink-3)}
.warn{color:var(--mark)}
.topgap{margin-top:22px}

/* ---------------- chrome ---------------- */
.topbar{
  position:sticky; top:0; z-index:40;
  display:flex; align-items:center; gap:14px;
  padding:10px 18px; background:var(--surface); border-bottom:1px solid var(--rule);
}
.brand{display:inline-flex; align-items:baseline; font-size:19px; font-weight:700; letter-spacing:-.03em; text-decoration:none}
.brand b{color:var(--ink); font-weight:700} .brand span{color:var(--accent)}
.search{flex:1; max-width:440px; position:relative; display:flex}
.search input{
  width:100%; padding:8px 12px 8px 34px; border-radius:999px;
  background:var(--surface-2); border:1px solid var(--rule); color:var(--ink);
}
.search input::placeholder{color:var(--ink-3)}
.search svg{position:absolute; left:11px; top:50%; translate:0 -50%; color:var(--ink-3)}
.topbar .spacer{flex:1}

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:7px;
  padding:8px 14px; border-radius:var(--r);
  border:1px solid var(--rule-2); background:var(--surface); color:var(--ink);
  font-weight:600; font-size:14px; text-decoration:none; white-space:nowrap;
  transition:background .12s, border-color .12s, transform .08s;
}
.btn:hover{background:var(--surface-2)}
.btn:active{transform:translateY(1px)}
.btn.primary{background:var(--accent); border-color:var(--accent); color:var(--on-accent)}
.btn.primary:hover{background:var(--accent-2); border-color:var(--accent-2)}
.btn.ghost{border-color:transparent; background:transparent}
.btn.ghost:hover{background:var(--surface-2)}
.btn.danger{color:var(--bad); border-color:var(--rule-2)}
.btn.danger:hover{background:var(--bad-soft); border-color:var(--bad)}
.btn.sm{padding:5px 10px; font-size:13px}
.btn.lg{padding:12px 20px; font-size:15px}
.btn.wide{width:100%}
.btn.dashed{border-style:dashed; color:var(--ink-2)}
.btn[disabled]{opacity:.45; pointer-events:none}
.icon-btn{width:34px; height:34px; display:grid; place-items:center; border-radius:8px; color:var(--ink-2); flex:none}
.icon-btn:hover{background:var(--surface-2); color:var(--ink)}
.inline-form{display:contents}

.avatar{width:20px; height:20px; border-radius:50%; display:grid; place-items:center; font-size:10px;
  font-weight:700; background:var(--accent-soft); color:var(--accent);
  font-family:"IBM Plex Mono",monospace; flex:none}
.avatar.lg{width:32px; height:32px; font-size:13px; cursor:pointer; list-style:none}
.avatar.lg::-webkit-details-marker{display:none}

.menu{position:relative}
.menu-pop{
  position:absolute; right:0; top:calc(100% + 8px); min-width:210px; z-index:45;
  background:var(--surface); border:1px solid var(--rule-2); border-radius:var(--r);
  box-shadow:0 20px 40px -24px rgba(0,0,0,.5); padding:6px; display:grid; gap:2px;
}
.menu-pop a,.menu-pop button{
  display:block; width:100%; text-align:left; padding:8px 10px; border-radius:7px;
  color:var(--ink); text-decoration:none; font-size:14px; font-weight:500;
}
.menu-pop a:hover,.menu-pop button:hover{background:var(--surface-2)}
.menu-who{padding:8px 10px 10px; border-bottom:1px solid var(--rule); margin-bottom:4px}
.menu-who b{display:block; font-size:14px} .menu-who small{color:var(--ink-3); font-size:12px}

.app{display:grid; grid-template-columns:216px minmax(0,1fr); align-items:start}
.rail{
  position:sticky; top:56px; padding:20px 12px; display:flex; flex-direction:column; gap:3px;
  border-right:1px solid var(--rule); min-height:calc(100vh - 56px);
}
.rail .lbl{font-size:11px; letter-spacing:.09em; text-transform:uppercase; color:var(--ink-3); font-weight:600; padding:16px 10px 6px}
.railstat{padding:2px 10px; font-size:13px; color:var(--ink-2); line-height:1.6}
.navlink{
  display:flex; align-items:center; gap:10px; padding:8px 10px; border-radius:8px;
  color:var(--ink-2); font-weight:500; text-decoration:none;
}
.navlink:hover{background:var(--surface-2); color:var(--ink)}
.navlink[aria-current="page"]{background:var(--accent-soft); color:var(--accent); font-weight:600}
.navlink .n{margin-left:auto; font-size:12px; color:var(--ink-3)}

main{padding:26px 28px 80px; min-width:0}
.wrap{max-width:940px; margin:0 auto}
.wrap.narrow{max-width:760px}

/* ---------------- shared bits ---------------- */
.eyebrow{font-size:11px; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-3); font-weight:600}
.pagehead{display:flex; align-items:flex-end; gap:16px; flex-wrap:wrap; margin-bottom:6px}
.pagehead h1{font-size:30px; font-weight:600; margin-top:4px}
.sub{color:var(--ink-2); font-size:14px}
.sub.lead,.lead{font-size:15.5px; color:var(--ink-2); max-width:62ch; margin-top:8px}
.section{font-family:"Familjen Grotesk",sans-serif; font-size:18px; font-weight:600; margin:26px 0 10px}
.searchnote{margin:14px 0 20px}
.backlink{margin-bottom:14px}
.notice{padding:12px 15px; border:1px solid var(--rule); border-left:3px solid var(--accent);
  border-radius:var(--r); background:var(--surface); font-size:14px; color:var(--ink-2); margin:18px 0 0}
.alert{padding:11px 14px; border-radius:var(--r); background:var(--bad-soft); color:var(--bad);
  font-size:14px; font-weight:500; margin-bottom:16px}
.hint{color:var(--ink-3); font-size:12.5px}

.status{
  display:flex; align-items:center; gap:14px; flex-wrap:wrap;
  padding:10px 14px; margin:18px 0 24px; border:1px solid var(--rule); border-radius:var(--r);
  background:var(--surface); font-size:13.5px; color:var(--ink-2);
}
.status b{color:var(--ink); font-weight:600}
.status .dot{color:var(--rule-2)}
.dots{display:flex; gap:5px; margin-left:auto}
.dots i{width:22px; height:22px; border-radius:6px; display:grid; place-items:center; font-style:normal;
  font-family:"IBM Plex Mono",monospace; font-size:10px; background:var(--surface-2);
  color:var(--ink-3); border:1px solid var(--rule)}
.dots i.on{background:var(--accent); color:var(--on-accent); border-color:var(--accent)}
.dots i.today{box-shadow:0 0 0 2px var(--mark-bright)}

.grid{display:grid; gap:14px; grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.card{
  position:relative; display:flex; flex-direction:column; gap:10px;
  padding:16px; border:1px solid var(--rule); border-radius:var(--r); background:var(--surface);
  transition:border-color .14s, box-shadow .14s, transform .1s;
}
.card:hover{border-color:var(--rule-2); box-shadow:var(--lift); transform:translateY(-1px)}
.card h3{font-size:17px; font-weight:600; line-height:1.25}
.card h3 a{color:inherit; text-decoration:none}
.stretch::after{content:""; position:absolute; inset:0}
.card-tags{display:flex; gap:8px; align-items:center; flex-wrap:wrap}
.card-course{font-size:13px; color:var(--ink-3)}
.card .meta{display:flex; align-items:center; gap:8px; font-size:12.5px; color:var(--ink-3); margin-top:auto; padding-top:4px}
.card .meta form,.card .meta .btn{position:relative; z-index:1; margin-left:auto}
.newcard{align-items:center; justify-content:center; border-style:dashed; color:var(--ink-3);
  min-height:150px; text-decoration:none; font-weight:600}
.count{font-family:"IBM Plex Mono",monospace; font-size:11px; font-weight:600; padding:2px 7px;
  border-radius:5px; background:var(--surface-2); border:1px solid var(--rule); color:var(--ink-2)}
.due{color:var(--mark); font-weight:600; font-size:11px}

.meter{display:flex; height:6px; border-radius:3px; overflow:hidden; background:var(--sunk)}
.meter.tall{height:8px}
.meter span{display:block; transition:width .4s ease}
.meter .s0{background:var(--rule-2)} .meter .s1{background:var(--mark-bright)} .meter .s2{background:var(--good)}
.legend{display:flex; gap:14px; flex-wrap:wrap; font-size:12.5px; color:var(--ink-2)}
.legend i{width:8px; height:8px; border-radius:2px; display:inline-block; margin-right:6px}
.legend i.good{background:var(--good)} .legend i.mark{background:var(--mark-bright)}
.legend i.plain{background:var(--rule-2)} .legend i.accent{background:var(--accent)}

.empty{padding:40px 24px; text-align:center; border:1px dashed var(--rule-2);
  border-radius:var(--r); color:var(--ink-3); display:grid; gap:12px; justify-items:center}
.empty h2{font-size:20px; color:var(--ink)}
.empty-actions{display:flex; gap:10px; flex-wrap:wrap; justify-content:center; margin-top:4px}
.errorpage{padding-top:40px; display:grid; gap:12px; justify-items:start}
.errorpage h1{font-size:30px}

.toast{
  position:fixed; left:50%; bottom:calc(24px + env(safe-area-inset-bottom,0px)); translate:-50% 0;
  background:var(--ink); color:var(--paper); padding:10px 16px; border-radius:999px;
  font-size:13.5px; font-weight:500; z-index:95; box-shadow:0 12px 30px -16px rgba(0,0,0,.7);
  animation:rise .22s ease-out;
}
@keyframes rise{from{opacity:0; translate:-50% 8px}to{opacity:1; translate:-50% 0}}

/* ---------------- set page ---------------- */
.sethead{display:flex; gap:20px; flex-wrap:wrap; align-items:flex-start; margin-bottom:20px}
.sethead .t{flex:1; min-width:260px}
.sethead h1{font-size:32px; font-weight:600; margin:4px 0 6px}
.sethead-actions{display:flex; gap:8px; flex-wrap:wrap; align-items:center}
.vis-chip{font-size:11px; font-weight:600; padding:2px 8px; border-radius:999px;
  font-family:"IBM Plex Mono",monospace; border:1px solid var(--rule-2); color:var(--ink-2)}
.vis-chip.vis-public{background:var(--good-soft); color:var(--good); border-color:transparent}
.vis-chip.vis-link{background:var(--accent-soft); color:var(--accent); border-color:transparent}

.masterybar{display:flex; gap:20px; align-items:center; flex-wrap:wrap; padding:14px 16px;
  border:1px solid var(--rule); border-radius:var(--r); background:var(--surface)}
.masterybar .meter{flex:1; min-width:200px}

.modes{display:grid; grid-template-columns:repeat(auto-fit,minmax(150px,1fr)); gap:12px; margin:22px 0 4px}
.mode{
  display:flex; flex-direction:column; gap:4px; align-items:flex-start; text-decoration:none; color:var(--ink);
  padding:15px 16px; border-radius:var(--r); border:1px solid var(--rule-2); background:var(--surface);
  transition:transform .1s, box-shadow .14s, border-color .14s;
}
.mode:hover{transform:translateY(-2px); box-shadow:var(--lift); border-color:var(--accent)}
.mode.disabled{opacity:.5; pointer-events:none}
.mode strong{font-family:"Familjen Grotesk",sans-serif; font-size:17px; font-weight:600}
.mode small{color:var(--ink-3); font-size:12.5px; line-height:1.4}
.mode .k{color:var(--accent); margin-bottom:6px; display:block}

.terms{border:1px solid var(--rule); border-radius:var(--r); background:var(--surface); overflow:hidden}
.term{display:grid; grid-template-columns:minmax(120px,.42fr) 1fr auto; gap:16px; align-items:start;
  padding:14px 16px; border-bottom:1px solid var(--rule)}
.term:last-child{border-bottom:none}
.term .t{font-weight:600}
.term .d{color:var(--ink-2); font-size:14px}
.term .r{display:flex; align-items:center; gap:4px}
.pill{font-size:11px; font-weight:600; padding:2px 8px; border-radius:999px; white-space:nowrap;
  font-family:"IBM Plex Mono",monospace}
.pill.s0{background:var(--surface-2); color:var(--ink-3); border:1px solid var(--rule)}
.pill.s1{background:var(--mark-soft); color:var(--mark)}
.pill.s2{background:var(--good-soft); color:var(--good)}
.star{color:var(--ink-3)} .star.on{color:var(--mark-bright)}

/* ---------------- study modes ---------------- */
.studybar{display:flex; align-items:center; gap:12px; margin-bottom:18px; flex-wrap:wrap}
.studybar h2{font-size:20px; font-weight:600; flex:1; min-width:140px; text-align:right}
.progressline{height:4px; background:var(--sunk); border-radius:2px; overflow:hidden; margin-bottom:22px}
.progressline span{display:block; height:100%; background:var(--accent); transition:width .3s}

.flipwrap{perspective:1600px; margin-bottom:16px}
.flip{position:relative; width:100%; min-height:min(46vh,330px); cursor:pointer;
  transform-style:preserve-3d; transition:transform .5s cubic-bezier(.2,.7,.3,1); border:none; padding:0; display:block}
.flip.on{transform:rotateX(180deg)}
.face{
  position:absolute; inset:0; backface-visibility:hidden; -webkit-backface-visibility:hidden;
  display:flex; flex-direction:column; justify-content:center; align-items:center; gap:14px;
  padding:34px 28px; border:1px solid var(--rule-2); border-radius:14px; background:var(--surface);
  box-shadow:var(--lift); text-align:center;
}
.face.back{transform:rotateX(180deg); background:var(--surface-2)}
.face .side{position:absolute; top:14px; left:18px; font-size:11px; letter-spacing:.1em;
  text-transform:uppercase; color:var(--ink-3); font-weight:600}
.face .fav{position:absolute; top:10px; right:12px}
.face p{font-family:"Familjen Grotesk",sans-serif; font-size:clamp(20px,3.4vw,30px); font-weight:500;
  line-height:1.25; max-width:34ch}
.face.back p{font-family:"Public Sans",sans-serif; font-size:clamp(16px,2.2vw,20px); font-weight:400;
  font-style:italic; line-height:1.45; max-width:48ch}
.face .facehint{position:absolute; bottom:14px; font-size:12px; color:var(--ink-3)}
.deckbar{display:flex; align-items:center; justify-content:center; gap:10px}
.deckbar .pos{min-width:76px; text-align:center; font-size:13px; color:var(--ink-2)}
.sortrow{display:flex; gap:12px; margin-top:16px}
.sortrow .btn{flex:1; padding:12px}
.sortrow .btn.no{border-color:var(--bad); color:var(--bad)} .sortrow .btn.no:hover{background:var(--bad-soft)}
.sortrow .btn.yes{border-color:var(--good); color:var(--good)} .sortrow .btn.yes:hover{background:var(--good-soft)}

.qcard{border:1px solid var(--rule); border-radius:14px; background:var(--surface); padding:26px 24px}
.qcard .prompt{font-family:"Familjen Grotesk",sans-serif; font-size:clamp(19px,2.6vw,25px);
  font-weight:500; line-height:1.3; margin:8px 0 22px}
.choices{display:grid; gap:10px}
.choices.two{grid-template-columns:1fr 1fr}
.choice{display:flex; gap:12px; align-items:flex-start; text-align:left; padding:13px 15px;
  border:1px solid var(--rule-2); border-radius:var(--r); background:var(--surface); transition:.12s; width:100%}
.choice:hover:not([disabled]){border-color:var(--accent); background:var(--accent-soft)}
.choice .k{font-family:"IBM Plex Mono",monospace; font-size:12px; color:var(--ink-3); padding-top:2px; min-width:14px}
.choice.picked{border-color:var(--accent); background:var(--accent-soft)}
.choice.right{border-color:var(--good); background:var(--good-soft); color:var(--good)}
.choice.wrong{border-color:var(--bad); background:var(--bad-soft); color:var(--bad)}
.choice[disabled]{cursor:default}
.typed{display:flex; gap:10px; flex-wrap:wrap}
.typed input{flex:1; min-width:190px; padding:13px 15px; border-radius:var(--r);
  border:1px solid var(--rule-2); background:var(--surface-2)}
.verdict{margin-top:18px; padding:14px 16px; border-radius:var(--r); font-size:14px;
  display:flex; gap:12px; align-items:center; flex-wrap:wrap}
.verdict.right{background:var(--good-soft); color:var(--good)}
.verdict.wrong{background:var(--bad-soft); color:var(--bad)}
.verdict .btn{margin-left:auto}

.matchhead{display:flex; align-items:baseline; gap:16px; margin-bottom:14px; flex-wrap:wrap}
.clock{font-size:26px; font-weight:600}
.matchgrid{display:grid; grid-template-columns:repeat(4,1fr); gap:10px}
.tile{min-height:104px; padding:12px; border:1px solid var(--rule-2); border-radius:var(--r);
  background:var(--surface); font-size:13px; line-height:1.35; text-align:left; display:flex;
  align-items:center; transition:.14s}
.tile:hover:not(.gone){border-color:var(--accent)}
.tile.sel{border-color:var(--accent); background:var(--accent-soft); color:var(--accent)}
.tile.miss{border-color:var(--bad); background:var(--bad-soft); color:var(--bad)}
.tile.gone{opacity:0; pointer-events:none}
.tile.term{font-family:"Familjen Grotesk",sans-serif; font-size:15px; font-weight:600}

.score{display:flex; align-items:center; gap:22px; flex-wrap:wrap; padding:22px 24px;
  border:1px solid var(--rule); border-radius:14px; background:var(--surface); margin-bottom:22px}
.score .big{font-family:"Familjen Grotesk",sans-serif; font-size:44px; font-weight:600;
  line-height:1; font-variant-numeric:tabular-nums}
.score .big small{font-size:22px; color:var(--ink-3)}
.score .grow{flex:1; min-width:180px}
.score .acts{display:flex; gap:10px; flex-wrap:wrap}

.review{display:grid; gap:12px}
.rev{border:1px solid var(--rule); border-left:3px solid var(--rule-2); border-radius:var(--r);
  background:var(--surface); padding:14px 16px}
.rev.right{border-left-color:var(--good)} .rev.wrong{border-left-color:var(--bad)}
.rev .q{font-weight:600; margin-bottom:6px}
.rev .a{font-size:13.5px; color:var(--ink-2)}
.rev .a b{color:var(--ink)}
.stage{min-height:300px}

/* ---------------- editor ---------------- */
.field{display:flex; flex-direction:column; gap:6px; margin-bottom:14px}
.field label,.field legend{font-size:12px; letter-spacing:.06em; text-transform:uppercase;
  color:var(--ink-3); font-weight:600; margin-bottom:6px}
.field input:not([type="radio"]):not([type="checkbox"]),
.field textarea,.field select{padding:11px 13px; border-radius:var(--r);
  border:1px solid var(--rule-2); background:var(--surface); width:100%}
.field input[type="radio"]{width:auto; flex:none; margin:2px 0 0; accent-color:var(--accent)}
.field textarea{min-height:120px; resize:vertical; font-size:14px}
.rowshead{display:flex; align-items:baseline; gap:12px; margin:24px 0 8px; flex-wrap:wrap}
.rowshead .section{margin:0}
.rows{display:grid; gap:10px; margin:6px 0 14px}
.row{display:grid; grid-template-columns:28px minmax(0,.4fr) minmax(0,1fr) 32px; gap:10px;
  align-items:start; padding:12px; border:1px solid var(--rule); border-radius:var(--r); background:var(--surface)}
.row .num{font-size:12px; color:var(--ink-3); padding-top:11px}
.row input,.row textarea{width:100%; padding:9px 11px; border-radius:8px; border:1px solid transparent;
  background:var(--surface-2); resize:vertical; font-family:inherit}
.row input:focus,.row textarea:focus{border-color:var(--accent)}
.row textarea{min-height:40px; font-size:14px; overflow:hidden}
.formactions{display:flex; gap:10px; margin-top:22px; flex-wrap:wrap}
.vis{display:grid; gap:8px}
.vis label{display:flex; gap:10px; align-items:flex-start; padding:11px 13px; border:1px solid var(--rule);
  border-radius:var(--r); background:var(--surface); cursor:pointer; font-size:14px;
  text-transform:none; letter-spacing:0; color:var(--ink); font-weight:500; margin:0}
.vis label > span{flex:1; min-width:0}
.vis label:has(input:checked){border-color:var(--accent); background:var(--accent-soft)}
.vis small{display:block; color:var(--ink-3); font-weight:400}

/* ---------------- modal ---------------- */
.modal-root{position:fixed; inset:0; z-index:90; display:grid; place-items:center; padding:20px;
  background:rgba(13,15,28,.5); backdrop-filter:blur(2px)}
.modal-root[hidden]{display:none !important}
.sheet{width:min(460px,100%); background:var(--surface); border:1px solid var(--rule-2);
  border-radius:14px; padding:22px; box-shadow:0 30px 60px -30px rgba(0,0,0,.6);
  max-height:85vh; overflow-y:auto}
.sheet h3{font-size:20px; font-weight:600; margin-bottom:4px}
.linkbox{display:flex; gap:8px; margin:16px 0 18px}
.linkbox input{flex:1; padding:10px 12px; border-radius:var(--r); border:1px solid var(--rule-2);
  background:var(--surface-2); font-family:"IBM Plex Mono",monospace; font-size:13px; min-width:0}
.sheet textarea{width:100%; min-height:170px; padding:12px; border-radius:10px;
  border:1px solid var(--rule-2); background:var(--surface-2);
  font-family:"IBM Plex Mono",monospace; font-size:13px; resize:vertical}
.sheetactions{display:flex; gap:10px; margin-top:14px}

/* ---------------- auth + landing ---------------- */
.bare-main{padding:0}
.authpage{min-height:100vh; display:grid; grid-template-rows:auto 1fr; gap:26px;
  padding:26px 20px 60px; justify-items:center; align-content:start}
.authcard{width:min(400px,100%); background:var(--surface); border:1px solid var(--rule);
  border-radius:14px; padding:26px; box-shadow:var(--lift); margin-top:4vh}
.authcard h1{font-size:26px; font-weight:600}
.authcard .sub{margin:6px 0 20px}
.authalt{margin-top:16px; font-size:14px; color:var(--ink-2); text-align:center}

.landing{max-width:1060px; margin:0 auto; padding:18px 20px 40px}
.landing-top{display:flex; align-items:center; gap:14px; margin-bottom:40px}
.landing-nav{display:flex; align-items:center; gap:10px; margin-left:auto}
.landing-nav a:not(.btn){color:var(--ink-2); text-decoration:none; font-weight:500; font-size:14px}
.hero{display:grid; grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr); gap:44px; align-items:center}
.hero h1{font-size:clamp(34px,5.2vw,54px); font-weight:600; line-height:1.03; margin:10px 0 0}
.hero .lead{margin-top:16px}
.hero-actions{display:flex; gap:12px; flex-wrap:wrap; margin-top:26px}
.fineprint{margin-top:14px; font-size:13px; color:var(--ink-3)}
.hero-demo{display:grid; gap:14px}
.demo-card{border:1px solid var(--rule-2); border-radius:14px; background:var(--surface);
  padding:30px 26px 26px; position:relative; box-shadow:var(--lift)}
.demo-card .side{font-size:11px; letter-spacing:.1em; text-transform:uppercase;
  color:var(--ink-3); font-weight:600; position:absolute; top:12px; left:20px}
.demo-card p{font-family:"Familjen Grotesk",sans-serif; font-size:23px; font-weight:500; margin-top:10px}
.demo-card.back{background:var(--surface-2); rotate:-1.2deg}
.demo-card.back p{font-family:"Public Sans",sans-serif; font-size:15.5px; font-style:italic;
  font-weight:400; color:var(--ink-2); line-height:1.5}
.demo-card.front{rotate:.8deg}

.ways{display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); gap:16px; margin:64px 0 0}
.way{padding:18px 0 0; border-top:2px solid var(--rule-2)}
.way h3{font-size:17px; font-weight:600; margin:8px 0 6px}
.way p{font-size:14px; color:var(--ink-2); line-height:1.5}
.waynum{font-size:12px; color:var(--accent); font-weight:600}
.featured{margin-top:64px}
.landing-foot{display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap;
  margin-top:64px; padding-top:20px; border-top:1px solid var(--rule);
  font-size:13px; color:var(--ink-3)}
.landing-foot a{color:var(--ink-2)}

/* ---------------- narrow ---------------- */
@media (max-width:860px){
  .app{grid-template-columns:minmax(0,1fr)}
  .rail{position:fixed; left:0; right:0; bottom:0; top:auto; min-height:0; flex-direction:row;
    justify-content:space-around; border-right:none; border-top:1px solid var(--rule);
    background:var(--surface); z-index:50; gap:0;
    padding:6px 8px calc(6px + env(safe-area-inset-bottom,0px))}
  .railgroup{display:none}
  .navlink{flex-direction:column; gap:3px; font-size:11px; padding:6px 4px; align-items:center; text-align:center}
  .navlink .n{display:none}
  main{padding:20px 16px 96px}
  .search{display:none}
  .topbar{padding:10px 14px}
  .brand{font-size:17px}
  .btn .clabel{display:none}
  .topbar .btn.primary{padding:8px 11px}
  .term{grid-template-columns:1fr; gap:6px}
  .term .r{order:-1}
  .matchgrid{grid-template-columns:repeat(2,1fr)}
  .row{grid-template-columns:24px minmax(0,1fr) 32px}
  .row textarea{grid-column:2 / 3}
  .hero{grid-template-columns:minmax(0,1fr); gap:32px}
  .landing{padding:16px 16px 40px}
  .score .big{font-size:36px}
}

/* ---------------- email verification ---------------- */
.verifybar{
  display:flex; align-items:center; gap:12px; flex-wrap:wrap;
  max-width:940px; margin:0 auto 20px; padding:11px 15px;
  border:1px solid var(--rule); border-left:3px solid var(--mark-bright);
  border-radius:var(--r); background:var(--surface); font-size:14px; color:var(--ink-2);
}
.verifybar svg{color:var(--mark); flex:none}
.verifybar b{color:var(--ink); font-weight:600}
.verifybar form{margin-left:auto}
.field label .labellink{
  float:right; text-transform:none; letter-spacing:0; font-weight:500; font-size:12.5px;
}
.vis label.locked{opacity:.55}
.vis label.locked small{color:var(--mark)}

/* ---------------- crossword (playable) ---------------- */
/*
 * A crossword reads as a crossword only when the unused squares are inked and
 * the whole thing is one rectangular block. Open squares are white in both
 * themes — a puzzle you print and a puzzle you solve on screen should be the
 * same object — so the grid carries its own colours rather than the page's.
 */
.xw-wrap { max-width: 1120px; }
.xw-tools { display: flex; gap: 6px; margin-left: auto; flex-wrap: wrap; }
.xw-current {
  min-height: 22px; margin: 14px 0 10px; font-size: 14.5px; color: var(--ink-2);
  font-weight: 500;
}
.xw-layout { display: grid; grid-template-columns: auto minmax(260px, 1fr); gap: 28px; align-items: start; }
.xw-gridwrap { min-width: 0; }

.xw-grid {
  display: grid;
  grid-template-columns: repeat(var(--xw-cols), var(--xw-size, 34px));
  grid-auto-rows: var(--xw-size, 34px);
  border: 2px solid #111; background: #111; width: max-content; max-width: 100%;
}
.xw-cell { position: relative; background: #fff; box-shadow: 0 0 0 0.5px #111; }
.xw-cell.xw-block { background: #111; box-shadow: none; }
.xw-n {
  position: absolute; top: 1px; left: 2px; z-index: 1;
  font-size: 9px; line-height: 1; font-weight: 700; color: #555; pointer-events: none;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
}
.xw-cell input {
  width: 100%; height: 100%; border: none; background: transparent; text-align: center;
  font-family: "Familjen Grotesk", "Public Sans", sans-serif;
  font-size: calc(var(--xw-size, 34px) * 0.55); font-weight: 600; color: #111;
  text-transform: uppercase; padding: 4px 0 0; caret-color: transparent;
}
.xw-cell input:focus { outline: none; }
.xw-cell.is-entry { background: #D8E0FF; }
.xw-cell.is-active { background: #FFD666; }
.xw-cell.is-wrong input { color: #C0343E; text-decoration: line-through; }
.xw-grid.is-solved { border-color: var(--good); box-shadow: 0 0 0 3px var(--good-soft); }

.xw-progress { margin-top: 10px; font-size: 13px; color: var(--ink-3); }

.xw-clues { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 20px; }
.xw-cluecol h3 {
  font-size: 12px; text-transform: uppercase; letter-spacing: .09em;
  color: var(--ink-3); margin: 0 0 8px;
}
.xw-cluecol ol { margin: 0; padding: 0; list-style: none; }
.xw-cluecol li {
  display: flex; gap: 8px; padding: 5px 8px; border-radius: 7px; font-size: 13.5px;
  color: var(--ink-2); cursor: pointer; line-height: 1.45;
}
.xw-cluecol li b { font-variant-numeric: tabular-nums; min-width: 17px; color: var(--ink); }
.xw-cluecol li:hover { background: var(--surface-2); }
.xw-cluecol li.is-active { background: var(--accent-soft); color: var(--ink); }
.xw-cluecol li.is-done { color: var(--ink-3); text-decoration: line-through; text-decoration-thickness: 1px; }
.xw-cluecol li.is-revealed b { color: var(--mark); }
.xw-len { color: var(--ink-3); font-style: normal; }
.xw-note {
  margin-top: 20px; padding-top: 10px; border-top: 1px solid var(--rule);
  font-size: 13px; color: var(--ink-3);
}

@media (max-width: 900px) {
  .xw-layout { grid-template-columns: 1fr; gap: 20px; }
  .xw-grid { --xw-size: min(30px, calc((100vw - 56px) / var(--xw-cols))); }
  .xw-tools { width: 100%; margin-left: 0; }
}