/* Touchmark — exam answer-sheet desk with an evidence ledger beside it */
:root{
  --paper:#F5F7FA; --surface:#FFFFFF; --ink:#18213A; --muted:#5A6378; --line:#D8DDE7; --field:#EEF1F7;
  --accent:#2C46C9; --accent-soft:#E3E8FB; --rule:#DCE3F2; --margin:#E7B7B2;
  --good:#1D7349; --good-soft:#E1F2E8; --warn:#9A6208; --warn-soft:#FBEFD9; --bad:#B3261E; --bad-soft:#F9E1DF;
  --display:"Literata", Georgia, "Times New Roman", serif;
  --ui:"IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono:"IBM Plex Mono", ui-monospace, Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark){ :root{
  --paper:#0E1220; --surface:#151A2A; --ink:#E5E8F1; --muted:#98A0B5; --line:#2A3147; --field:#1C2236;
  --accent:#8FA0FF; --accent-soft:#232C52; --rule:#232A40; --margin:#5A3434;
  --good:#5CC48F; --good-soft:#163024; --warn:#E3AA4E; --warn-soft:#33270F; --bad:#F27D74; --bad-soft:#3A1A19; color-scheme:dark }}

*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--paper);color:var(--ink);font-family:var(--ui);font-size:14px;line-height:1.5;
  padding-left:max(16px, env(safe-area-inset-left, 0px));padding-right:max(16px, env(safe-area-inset-right, 0px));padding-block:16px 56px}
[hidden]{display:none !important}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
a{color:var(--accent)}
.wrap{max-width:1280px;margin:0 auto;display:grid;gap:18px}
.mono{font-family:var(--mono);font-size:12px}
.sub{font-size:12.5px;color:var(--muted);margin:0}
.eyebrow{font-size:11px;text-transform:uppercase;letter-spacing:.09em;color:var(--muted);font-weight:600;margin:0}
h1,h2,h3{font-family:var(--display);font-weight:600;margin:0;text-wrap:balance}
h2{font-size:18px} h3{font-size:15px}

/* top bar */
.topbar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.brand{font-family:var(--display);font-size:24px;font-weight:600;text-decoration:none;color:var(--ink)}
.brand em{font-weight:400;color:var(--accent)}
.nav{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.who{color:var(--muted);font-size:13px;margin-right:6px}

/* controls */
.btn{border:1px solid var(--line);background:var(--surface);border-radius:6px;padding:6px 11px;cursor:pointer;font-weight:500;text-decoration:none;display:inline-flex;align-items:center;gap:6px}
.btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--surface)}
.btn.primary:hover:not(:disabled){color:var(--surface);filter:brightness(1.08)}
.btn.danger{color:var(--bad)} .btn.danger:hover:not(:disabled){border-color:var(--bad);color:var(--bad)}
.btn.small{padding:3px 8px;font-size:12.5px}
.field{display:grid;gap:4px}
.field label{font-size:12.5px;font-weight:600}
.field input[type=text],.field input[type=email],.field input[type=password],.field select,.input{border:1px solid var(--line);background:var(--field);border-radius:6px;padding:8px 10px;width:100%}
.check{display:flex;gap:8px;align-items:flex-start;font-size:13px}
.check input{margin-top:3px;accent-color:var(--accent)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:10px}
.pad{padding:16px 18px}
.stack{display:grid;gap:12px}
.msg{padding:9px 12px;border-radius:8px;font-size:13px}
.msg.ok{background:var(--good-soft);color:var(--good)} .msg.err{background:var(--bad-soft);color:var(--bad)} .msg.info{background:var(--accent-soft);color:var(--ink)}
.pill{display:inline-flex;align-items:center;gap:6px;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600;background:var(--field);color:var(--muted);white-space:nowrap}
.pill.good{background:var(--good-soft);color:var(--good)} .pill.warn{background:var(--warn-soft);color:var(--warn)} .pill.bad{background:var(--bad-soft);color:var(--bad)}

/* signed-out */
.welcome{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:28px;align-items:start;padding-top:12px}
@media (max-width:820px){.welcome{grid-template-columns:minmax(0,1fr)}}
.welcome .lede h1{font-size:34px;line-height:1.15;margin-bottom:12px}
.welcome .lede p{max-width:60ch;color:var(--muted);margin:0 0 10px}
.welcome .lede ul{margin:0;padding-left:18px;color:var(--muted);max-width:60ch;display:grid;gap:4px}
.tabs{display:flex;border-bottom:1px solid var(--line);overflow-x:auto}
.tab{border:0;background:none;padding:11px 14px;font-weight:600;color:var(--muted);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap}
.tab[aria-selected="true"]{color:var(--ink);border-bottom-color:var(--accent)}

/* signed-in layout */
.app{display:grid;grid-template-columns:260px minmax(0,1fr);gap:18px;align-items:start}
@media (max-width:980px){.app{grid-template-columns:minmax(0,1fr)}}
.side{display:grid;gap:10px;position:sticky;top:max(12px, env(safe-area-inset-top, 0px))}
@media (max-width:980px){.side{position:static}}
.plist{list-style:none;margin:0;padding:0;display:grid}
.plist button{all:unset;box-sizing:border-box;cursor:pointer;display:grid;gap:2px;width:100%;padding:9px 12px;border-top:1px solid var(--line)}
.plist li:first-child button{border-top:0}
.plist button:hover{background:var(--field)}
.plist button[aria-current="true"]{background:var(--accent-soft)}
.plist button:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
.plist .pt{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.plist .pm{display:flex;gap:6px;align-items:center;color:var(--muted);font-size:12px}
.empty{padding:36px 24px;text-align:center;color:var(--muted)}
.empty h2{color:var(--ink);margin-bottom:6px}

.work{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:18px;align-items:start}
@media (max-width:1180px){.work{grid-template-columns:minmax(0,1fr)}}
.desk{display:flex;flex-direction:column;min-width:0}
.desk-bar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;padding:10px 14px;border-bottom:1px solid var(--line)}
.desk-head{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;padding:12px 14px;border-bottom:1px solid var(--line);align-items:end}
@media (max-width:520px){.desk-head{grid-template-columns:minmax(0,1fr)}}
.title-input{font-family:var(--display);font-size:20px;font-weight:600;border:0;background:transparent;padding:4px 0;width:100%;border-bottom:1px dashed transparent}
.title-input:hover,.title-input:focus{border-bottom-color:var(--line);outline:none}
.save{color:var(--muted);font-size:12.5px;font-variant-numeric:tabular-nums}
.save.err{color:var(--bad)}
.sheet{position:relative}
.editor{display:block;width:100%;min-height:520px;resize:vertical;border:0;outline:0;background-color:var(--surface);
  font-family:var(--display);font-size:18px;line-height:30px;padding:30px 28px 30px 72px;color:var(--ink);
  background-image:linear-gradient(to right, transparent 54px, var(--margin) 54px, var(--margin) 55px, transparent 55px),
    repeating-linear-gradient(to bottom, transparent 0, transparent 29px, var(--rule) 29px, var(--rule) 30px);
  background-attachment:local;background-position:0 2px;border-radius:0 0 10px 10px}
.editor[readonly]{color:var(--muted)}
@media (max-width:520px){.editor{padding-left:22px;background-image:repeating-linear-gradient(to bottom, transparent 0, transparent 29px, var(--rule) 29px, var(--rule) 30px)}}
.toast{position:absolute;right:14px;top:14px;background:var(--ink);color:var(--surface);padding:7px 12px;border-radius:6px;font-size:13px;font-weight:500}
.desk:fullscreen{overflow:auto;border-radius:0}
.desk:fullscreen .editor{min-height:calc(100vh - 120px)}
.readonly-text{font-family:var(--display);font-size:17px;line-height:1.7;white-space:pre-wrap;overflow-wrap:anywhere;padding:22px 26px}

.evidence{display:grid;gap:16px;min-width:0}
.score{padding:18px 18px 16px;display:grid;gap:12px}
.score-head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;flex-wrap:wrap}
.big{font-family:var(--display);font-size:52px;line-height:1;font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.big small{font-size:22px;font-weight:400;color:var(--muted)}
.tier{font-family:var(--mono);font-size:13px;font-weight:500;padding:5px 10px;border-radius:6px;border:1.5px solid currentColor}
.tier.t95,.tier.t85{color:var(--good)} .tier.t75,.tier.t65,.tier.t60{color:var(--warn)} .tier.t0{color:var(--muted)}
.scale{position:relative;height:30px;margin-top:4px}
.scale .track{position:absolute;left:0;right:0;top:8px;height:8px;border-radius:4px;background:linear-gradient(to right,var(--field) 0 65%,var(--warn-soft) 65% 85%,var(--good-soft) 85% 100%)}
.scale .tick{position:absolute;top:4px;width:1px;height:16px;background:var(--line)}
.scale .tick b{position:absolute;top:17px;left:50%;transform:translateX(-50%);font-size:10px;font-weight:500;color:var(--muted);font-family:var(--mono)}
.scale .cap{position:absolute;top:2px;width:2px;height:20px;background:var(--ink);opacity:.35}
.scale .mark{position:absolute;top:3px;width:18px;height:18px;margin-left:-9px;border-radius:50%;background:var(--accent);border:3px solid var(--surface);box-shadow:0 0 0 1px var(--accent);transition:left .3s}
@media (prefers-reduced-motion:reduce){.scale .mark{transition:none}}
.score dl{display:grid;grid-template-columns:1fr auto;gap:4px 12px;margin:0;font-size:13px}
.score dt{color:var(--muted)} .score dd{margin:0;text-align:right;font-variant-numeric:tabular-nums;font-weight:500}
.caveat{font-size:12px;color:var(--muted);margin:0;border-top:1px dashed var(--line);padding-top:10px}

.factors{padding:14px 0 6px}
.factors header{padding:0 18px 8px;display:flex;justify-content:space-between;align-items:baseline;gap:8px;flex-wrap:wrap}
.flist{list-style:none;margin:0;padding:0}
.frow{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2px 10px;padding:9px 18px;border-top:1px solid var(--line)}
.frow .fl{font-weight:600;font-size:13.5px;display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.frow .basis{font-size:10.5px;font-weight:500;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);border:1px solid var(--line);border-radius:4px;padding:0 5px}
.frow .fv{grid-column:1;color:var(--muted);font-size:12.5px;font-variant-numeric:tabular-nums}
.frow .fn{grid-column:1 / -1;color:var(--muted);font-size:12px;margin-top:2px}
.verdict{grid-row:1 / span 2;grid-column:2;align-self:center;font-size:11.5px;font-weight:600;padding:3px 8px;border-radius:999px;white-space:nowrap}
.v-for{background:var(--good-soft);color:var(--good)} .v-against{background:var(--bad-soft);color:var(--bad)}
.v-neutral{background:var(--field);color:var(--muted)} .v-na{background:transparent;color:var(--muted);border:1px dashed var(--line)}

.files{list-style:none;margin:0;padding:0;display:grid;gap:4px;font-size:12px}
.files li{display:flex;justify-content:space-between;gap:10px;min-width:0;align-items:center}
.files li span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}

/* certificate */
.cert{border:1px solid var(--line);border-radius:10px;padding:20px;display:grid;grid-template-columns:auto minmax(0,1fr);gap:22px;align-items:center;background:var(--paper)}
@media (max-width:640px){.cert{grid-template-columns:minmax(0,1fr);justify-items:center}}
.cert canvas{width:200px;height:200px;max-width:100%}
.cert .kicker{font-family:var(--display);font-weight:400;font-style:italic;font-size:15px;color:var(--muted);margin:0}
.cert .ctier{font-family:var(--display);font-size:32px;font-weight:600;margin:2px 0 10px;line-height:1.1}
.cert dl{display:grid;grid-template-columns:max-content minmax(0,1fr);gap:5px 14px;margin:0;font-size:13px;justify-self:stretch}
.cert dt{color:var(--muted)} .cert dd{margin:0;min-width:0;overflow-wrap:anywhere}
.cert .actions{grid-column:1 / -1;display:flex;gap:8px;flex-wrap:wrap;justify-self:stretch}
.sigok{color:var(--good);font-weight:600} .signo{color:var(--bad);font-weight:600}

/* modal-ish panel */
.overlay{position:fixed;inset:0;background:rgb(0 0 0 / .45);display:grid;place-items:center;padding:16px;z-index:10}
.dialog{max-width:460px;width:100%}

.desk-head.three{grid-template-columns:minmax(0,1fr) auto auto}
@media (max-width:720px){.desk-head.three{grid-template-columns:minmax(0,1fr)}}
.test-strip{padding:10px 14px;border-bottom:1px solid var(--line);display:grid;gap:10px;background:var(--paper)}
.test-fields{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:10px;align-items:end}
@media (max-width:640px){.test-fields{grid-template-columns:minmax(0,1fr)}}
.test-stamp{grid-column:1 / -1;justify-self:stretch;border:2px dashed var(--bad);color:var(--bad);border-radius:8px;padding:8px 12px;font-family:var(--mono);font-size:12.5px;font-weight:500;letter-spacing:.04em}
.lab{display:grid;grid-template-columns:320px minmax(0,1fr);gap:18px;align-items:start}
@media (max-width:980px){.lab{grid-template-columns:minmax(0,1fr)}}
.lever{display:grid;grid-template-columns:minmax(0,1fr) 64px;gap:2px 10px;align-items:center;font-size:12.5px}
.lever input[type=range]{grid-column:1 / -1;width:100%;accent-color:var(--accent)}
.lever output{text-align:right;font-family:var(--mono);font-size:12px}
.table-wrap{overflow-x:auto}
table.results{border-collapse:collapse;width:100%;font-size:13px;font-variant-numeric:tabular-nums}
table.results th,table.results td{text-align:left;padding:7px 10px;border-top:1px solid var(--line);white-space:nowrap}
table.results th{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);border-top:0}
table.results tr.wrong td{background:var(--bad-soft)}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px}
.kpi{padding:14px 16px}
.kpi .n{font-family:var(--display);font-size:30px;font-weight:600;font-variant-numeric:tabular-nums}
table.results td.cs{max-width:220px;overflow:hidden;text-overflow:ellipsis;color:var(--muted)}
dl.kv{display:grid;grid-template-columns:max-content minmax(0,1fr);gap:5px 14px;margin:0;font-size:13.5px}
dl.kv dt{color:var(--muted)} dl.kv dd{margin:0;overflow-wrap:anywhere}
/* Evidence thermometer: grey, then orange towards green as the evidence grows. */
.thermo{margin-top:8px}
.thermo-track{position:relative;height:14px;border-radius:7px;overflow:hidden;
  background:linear-gradient(to right,#B9B3A8 0%,#CFC8BB 24%,#E8892B 26%,#EDB236 50%,#9CC352 74%,#2E9E5B 100%)}
.thermo-rest{position:absolute;top:0;bottom:0;right:0;background:var(--field);transition:left .3s}
.thermo-div{position:absolute;top:0;bottom:0;width:2px;margin-left:-1px;background:var(--surface);opacity:.9}
.thermo-cap{position:absolute;top:-2px;bottom:-2px;width:3px;margin-left:-1.5px;background:var(--ink);opacity:.55}
.thermo-labels{display:grid;grid-template-columns:repeat(4,1fr);margin-top:5px;font-size:11px;color:var(--muted);text-align:center;line-height:1.2}
@media (prefers-reduced-motion:reduce){.thermo-rest{transition:none}}
.big.words{font-size:30px;letter-spacing:-.01em;line-height:1.1}
.cert .thermo{margin:0 0 12px}
.witness-mark{display:inline-block;margin-left:8px;padding:2px 8px;border:1.5px solid var(--good);border-radius:999px;color:var(--good);font-family:var(--mono);font-size:11px;letter-spacing:.06em;vertical-align:middle}
/* Projects in the sidebar */
.plist .proj{display:flex;align-items:center;gap:6px;padding:8px 12px 4px;border-top:1px solid var(--line);font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.plist .proj .pn{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600;color:var(--ink)}
.plist li.part button{padding-left:24px}
.plist .proj .btn{text-transform:none;letter-spacing:0}
.side-actions{display:flex;gap:6px}
.side-actions .btn{flex:1}
.test-fields.three{grid-template-columns:minmax(0,2fr) minmax(0,1fr) minmax(0,1.2fr)}
@media (max-width:720px){.test-fields.three{grid-template-columns:minmax(0,1fr)}}
.plist .proj button{width:auto;display:inline-block;padding:3px 8px;border:1px solid var(--line);border-radius:6px;font-size:12px;color:var(--ink);background:var(--surface);cursor:pointer}
.plist .proj button:hover{border-color:var(--accent)}
.plist .proj .pn{text-transform:none;letter-spacing:0;font-size:13px}

/* Display settings (Settings → Writing area). Font and spacing only; line height and ruled lines are unchanged. */
.disp-sans .editor,.disp-sans .readonly-text{font-family:var(--ui)}
.disp-wide .editor,.disp-wide .readonly-text{letter-spacing:.12em;word-spacing:.16em}
/* Text display button and panel in the bar under the writing area (works in Focus mode too). */
.disp-wrap{position:relative;display:inline-flex}
#btnDisplay{font-family:var(--display);font-weight:600;min-width:34px;justify-content:center}
.disp-panel{position:absolute;right:0;top:calc(100% + 6px);z-index:30;display:grid;gap:8px;padding:12px 14px;width:max-content;max-width:min(300px,calc(100vw - 32px));box-shadow:0 8px 24px rgba(0,0,0,.14)}
.disp-panel[hidden]{display:none}
@media (max-width:600px){.disp-panel{right:auto;left:0}}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}