/* SATs Summit styles. Light and dark follow the device. */

/* Layout: one column "base camp" app. Sticky header with XP and streak, a trail map that climbs to the summit (SATs week), cards below. */
:root{
  --bg:#edf2f6; --surface:#ffffff; --surface2:#e1e9f1; --ink:#13233a; --muted:#56687d; --line:#cdd8e3;
  --brand:#0d7a70; --brand-ink:#ffffff; --sun:#ffc23d; --sun-ink:#3a2900;
  --good:#18915a; --good-bg:#dcf3e6; --bad:#cf4336; --bad-bg:#fce4e1;
  --c-arith:#0d7a70; --c-reason:#4b53c4; --c-gps:#d9700f; --c-spell:#bf3473; --c-read:#2a8540;
  --snow:#ffffff; --rock:#b9c8d6;
  --display:"Lilita One","Arial Rounded MT Bold","Trebuchet MS",sans-serif;
  --body:"Lexend",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
}
@media (prefers-color-scheme: dark){ html{
  --bg:#0c1520; --surface:#14202e; --surface2:#1c2b3c; --ink:#e6eef6; --muted:#9db0c4; --line:#2a3b4f;
  --brand:#2fb5a7; --brand-ink:#04211d; --sun:#ffcd55; --sun-ink:#2d2000;
  --good:#4fd08c; --good-bg:#12372a; --bad:#ff7d70; --bad-bg:#3d1c19;
  --c-arith:#35bfb1; --c-reason:#8b92ff; --c-gps:#ffa04a; --c-spell:#ff6fae; --c-read:#5fcf73;
  --snow:#dfe8f2; --rock:#2c3e52; color-scheme:dark } }
html.dark{
  --bg:#0c1520; --surface:#14202e; --surface2:#1c2b3c; --ink:#e6eef6; --muted:#9db0c4; --line:#2a3b4f;
  --brand:#2fb5a7; --brand-ink:#04211d; --sun:#ffcd55; --sun-ink:#2d2000;
  --good:#4fd08c; --good-bg:#12372a; --bad:#ff7d70; --bad-bg:#3d1c19;
  --c-arith:#35bfb1; --c-reason:#8b92ff; --c-gps:#ffa04a; --c-spell:#ff6fae; --c-read:#5fcf73;
  --snow:#dfe8f2; --rock:#2c3e52; color-scheme:dark }

*{box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.5;margin:0}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:10;background:var(--surface)}
h1,h2,h3{font-family:var(--display);font-weight:400;letter-spacing:.01em;line-height:1.15;text-wrap:balance;margin:0}
h1{font-size:2rem} h2{font-size:1.5rem} h3{font-size:1.2rem}
p{margin:0}
button{font:inherit;cursor:pointer;color:inherit;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
.topicwrap{display:flex;flex-direction:column;gap:6px}
.topicwrap .subj{flex:1}
.mast{display:inline-block;padding:2px 9px;border-radius:999px;font-size:.78rem;font-weight:700;white-space:nowrap}
.mast.l0{background:var(--surface2);color:var(--muted)}.mast.l1{background:var(--bad-bg);color:var(--bad)}.mast.l2{background:var(--surface2);color:var(--ink);box-shadow:inset 0 0 0 2px var(--sun)}.mast.l3{background:var(--good-bg);color:var(--good)}.mast.l4{background:var(--good);color:#fff}
.focus{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center;padding:12px 0;border-bottom:1px dashed var(--line)}
.focus:last-child{border-bottom:0}
@media (max-width:560px){.focus{grid-template-columns:1fr}}
:focus-visible{outline:3px solid var(--sun);outline-offset:2px}
.wrap{max-width:980px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}

header.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:var(--surface);border-bottom:2px solid var(--line)}
header.top .wrap{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding-block:10px}
.brand{display:flex;align-items:center;gap:8px;font-family:var(--display);font-size:1.35rem;background:none;border:0;padding:0}
.brand svg{width:34px;height:34px}
.chips{display:flex;gap:8px;margin-left:auto;flex-wrap:wrap}
.chip{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;background:var(--surface2);font-weight:600;font-variant-numeric:tabular-nums;font-size:.95rem}
.chip.xp{background:var(--sun);color:var(--sun-ink)}
nav.tabs{display:flex;gap:4px;overflow-x:auto;padding-bottom:8px}
nav.tabs button{border:0;background:none;padding:8px 12px;border-radius:10px;font-weight:600;color:var(--muted);white-space:nowrap}
nav.tabs button[aria-current="page"]{background:var(--brand);color:var(--brand-ink)}

main{padding-block:20px 60px}
.stack{display:flex;flex-direction:column;gap:18px}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr));gap:18px}
.grid3{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,210px),1fr));gap:14px}
.card{background:var(--surface);border:2px solid var(--line);border-radius:18px;padding:18px;min-width:0}
.card h2,.card h3{margin-bottom:10px}
.muted{color:var(--muted)}
.small{font-size:.88rem}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.spacer{flex:1}

.btn{box-shadow:0 4px 0 rgba(0,0,0,.28);display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:14px;padding:12px 18px;font-weight:700;background:var(--brand);color:var(--brand-ink);box-shadow:0 4px 0 color-mix(in srgb,var(--brand) 60%,#000);transition:transform .08s}
.btn:active{transform:translateY(3px);box-shadow:0 1px 0 color-mix(in srgb,var(--brand) 60%,#000)}
.btn.sun{background:var(--sun);color:var(--sun-ink);box-shadow:0 4px 0 color-mix(in srgb,var(--sun) 60%,#000)}
.btn.ghost{background:var(--surface2);color:var(--ink);box-shadow:0 4px 0 var(--line)}
.btn.danger{background:var(--bad);color:#fff;box-shadow:0 4px 0 color-mix(in srgb,var(--bad) 60%,#000)}
.btn.big{font-size:1.1rem;padding:14px 22px}
.btn:disabled{opacity:.5;cursor:default}
.linkbtn{background:none;border:0;padding:0;color:var(--brand);font-weight:600;text-decoration:underline;text-underline-offset:3px}

/* hero */
.hero{display:grid;grid-template-columns:1fr;gap:6px}
.hero .count{font-family:var(--display);font-size:1.1rem;color:var(--brand)}
.trail{width:100%;height:auto;display:block;margin-top:6px}
.lvlbar{height:14px;background:var(--surface2);border-radius:99px;overflow:hidden}
.lvlbar>i{display:block;height:100%;background:var(--sun);border-radius:99px}

/* goals */
.goal{display:grid;grid-template-columns:28px 1fr auto;gap:10px;align-items:center;padding:8px 0;border-bottom:1px dashed var(--line)}
.goal:last-child{border-bottom:0}
.tick{width:26px;height:26px;border-radius:50%;border:2px solid var(--line);display:grid;place-items:center;font-size:.9rem;font-weight:700}
.tick.done{background:var(--good);border-color:var(--good);color:#fff}
.goal .bar{height:8px;background:var(--surface2);border-radius:9px;overflow:hidden;margin-top:4px}
.goal .bar i{display:block;height:100%;border-radius:9px}
.num{font-variant-numeric:tabular-nums;font-weight:600}

/* subject tiles */
.subj{display:flex;flex-direction:column;gap:8px;text-align:left;border:2px solid var(--line);background:var(--surface);border-radius:18px;padding:16px;position:relative;overflow:hidden}
.subj:hover{border-color:var(--c)}
.subj .tag{font-family:var(--display);font-size:1.25rem;color:var(--c)}
.subj .meter{height:8px;background:var(--surface2);border-radius:9px;overflow:hidden}
.subj .meter i{display:block;height:100%;background:var(--c)}
.subj::after{content:"";position:absolute;right:-18px;top:-18px;width:64px;height:64px;border-radius:50%;background:var(--c);opacity:.14}

/* quiz */
.quizhead{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.dots{display:flex;gap:5px;flex-wrap:wrap}
.dots i{width:12px;height:12px;border-radius:50%;background:var(--surface2);border:2px solid var(--line)}
.dots i.ok{background:var(--good);border-color:var(--good)}
.dots i.no{background:var(--bad);border-color:var(--bad)}
.dots i.cur{border-color:var(--ink)}
.dots i.ans{background:var(--muted);border-color:var(--muted)}
.qcard{background:var(--surface);border:2px solid var(--line);border-radius:22px;padding:22px;display:flex;flex-direction:column;gap:16px}
.qtopic{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;font-weight:700;color:var(--c,var(--brand))}
.qtext{font-size:1.35rem;line-height:1.5}
.qtext.arith{font-family:var(--mono);font-size:1.7rem;font-weight:600}
.answerrow{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.answerrow input,.answerrow textarea{font:inherit;font-size:1.3rem;padding:12px 14px;border-radius:14px;border:2px solid var(--line);background:var(--bg);color:var(--ink);min-width:0;width:min(100%,320px)}
.answerrow textarea{width:100%;min-height:110px;font-size:1.05rem}
.answerrow input:focus,.answerrow textarea:focus{border-color:var(--brand);outline:none}
.unit{font-size:1.2rem;font-weight:600}
.opts{display:grid;gap:10px}
.opt{text-align:left;border:2px solid var(--line);background:var(--bg);padding:12px 14px;border-radius:14px;font-size:1.05rem;display:flex;gap:12px;align-items:flex-start}
.opt .k{flex:0 0 28px;height:28px;border-radius:8px;background:var(--surface2);display:grid;place-items:center;font-weight:700;font-size:.9rem}
.opt[aria-pressed="true"]{background:var(--surface2);border-color:var(--brand);background:color-mix(in srgb,var(--brand) 12%,var(--bg))}
.opt[aria-pressed="true"] .k{background:var(--brand);color:var(--brand-ink)}
.opt.right{border-color:var(--good);background:var(--good-bg)}
.opt.wrong{border-color:var(--bad);background:var(--bad-bg)}
.feedback{border-radius:16px;padding:16px;display:flex;flex-direction:column;gap:10px}
.feedback.good{background:var(--good-bg)}
.feedback.bad{background:var(--bad-bg)}
.feedback .verdict{font-family:var(--display);font-size:1.4rem}
.feedback.good .verdict{color:var(--good)}
.feedback.bad .verdict{color:var(--bad)}
.steps{display:flex;flex-direction:column;gap:6px;background:var(--surface);border-radius:12px;padding:12px 14px;overflow-x:auto}
.steps ol{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:6px}
.ai{background:var(--surface);border-radius:12px;padding:12px 14px;white-space:pre-wrap}
pre.col{font-family:var(--mono);font-size:1.05rem;line-height:1.35;margin:4px 0;background:var(--bg);padding:8px 12px;border-radius:10px;display:inline-block}
.fr{display:inline-flex;flex-direction:column;align-items:center;vertical-align:middle;line-height:1.05;margin:0 .15em;font-size:.9em}
.fr span:first-child{border-bottom:2px solid currentColor;padding:0 .15em}
.fig{max-width:100%;height:auto;display:block}
.passage{background:var(--surface);border:2px solid var(--line);border-radius:18px;padding:18px;max-height:70vh;overflow:auto}
.passage p{margin:0 0 .8em;max-width:65ch}
.passage .poem{white-space:pre-line;font-style:italic}
.passage h3{color:var(--c-read)}
.readgrid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px;align-items:start}
@media (max-width:760px){.readgrid{grid-template-columns:1fr}.passage{max-height:none}}
.timer{font-family:var(--display);font-size:1.2rem;font-variant-numeric:tabular-nums;padding:4px 12px;border-radius:999px;background:var(--surface2)}
.timer.low{background:var(--bad);color:#fff}
.navgrid{display:flex;flex-wrap:wrap;gap:6px}
.navgrid button{width:36px;height:36px;border-radius:10px;border:2px solid var(--line);background:var(--bg);font-weight:600;font-variant-numeric:tabular-nums}
.navgrid button.ans{background:var(--surface2)}
.navgrid button.cur{border-color:var(--brand)}

/* results */
.score{font-family:var(--display);font-size:3rem;line-height:1;color:var(--brand)}
.review{display:flex;flex-direction:column;gap:10px}
.review details{border:2px solid var(--line);border-radius:14px;padding:10px 14px;background:var(--surface)}
.review summary{cursor:pointer;display:block;list-style:none}
.review summary>*{margin-right:8px}
.review summary::-webkit-details-marker{display:none}
.pill{display:inline-block;padding:2px 10px;border-radius:999px;font-size:.8rem;font-weight:700}
.pill.ok{background:var(--good-bg);color:var(--good)}
.pill.no{background:var(--bad-bg);color:var(--bad)}
.pill.mid{background:var(--surface2);background:color-mix(in srgb,var(--sun) 30%,var(--surface));color:var(--ink)}

table{border-collapse:collapse;width:100%}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
th{font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
td.n{text-align:right;font-variant-numeric:tabular-nums}
.tablewrap{overflow-x:auto}
.meterrow{display:grid;grid-template-columns:minmax(120px,1.2fr) 2fr 56px auto;gap:10px;align-items:center;padding:6px 0}
@media (max-width:560px){.meterrow{grid-template-columns:1fr 56px auto}.meterrow .m{grid-column:1/-1;order:3}}
.meterrow .m{height:10px;background:var(--surface2);border-radius:9px;overflow:hidden}
.meterrow .m i{display:block;height:100%;border-radius:9px}

.badges{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,180px),1fr));gap:12px}
.badge{border:2px solid var(--line);border-radius:16px;padding:14px;display:flex;flex-direction:column;gap:6px;align-items:flex-start;background:var(--surface)}
.badge .medal{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;font-family:var(--display);font-size:1.2rem;background:var(--surface2);color:var(--muted)}
.badge.got .medal{background:var(--sun);color:var(--sun-ink)}
.badge:not(.got){opacity:.7}

label.f{display:flex;flex-direction:column;gap:4px;font-weight:600;font-size:.92rem}
label.f input,label.f select{font:inherit;font-weight:400;padding:9px 12px;border-radius:12px;border:2px solid var(--line);background:var(--bg);color:var(--ink);width:100%}
.formgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,170px),1fr));gap:12px;align-items:end}

.toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 18px;border-radius:999px;font-weight:700;z-index:20;box-shadow:0 6px 20px rgba(0,0,0,.25)}
#confetti{position:fixed;inset:0;pointer-events:none;z-index:30}
.sync{font-size:.78rem;color:var(--muted)}
.notice{background:var(--surface2);background:color-mix(in srgb,var(--sun) 22%,var(--surface));border-radius:14px;padding:12px 14px}
@media (prefers-reduced-motion: reduce){*{transition:none!important;animation:none!important}}

/* ---------- app shell ---------- */
[hidden]{display:none!important}
*{-webkit-text-size-adjust:100%}
html,body{min-height:100%}
.loading{display:flex;flex-direction:column;align-items:center;gap:14px;padding:60px 0;color:var(--muted)}
.spinner{width:36px;height:36px;border-radius:50%;border:4px solid var(--line);border-top-color:var(--brand);animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.review summary{cursor:pointer;display:block;list-style:none}
.review summary::-webkit-details-marker{display:none}
.review summary>*{margin-right:8px}
.btn{box-shadow:0 4px 0 rgba(0,0,0,.28)}
.opt[aria-pressed="true"]{background:var(--surface2)}
.notice{background:var(--surface2)}
.pill.mid{background:var(--surface2)}
button{-webkit-tap-highlight-color:transparent;touch-action:manipulation}
input,textarea,select{font-size:16px}
.topicwrap{display:flex;flex-direction:column;gap:6px}
.topicwrap .subj{flex:1}
.mast{display:inline-block;padding:2px 9px;border-radius:999px;font-size:.78rem;font-weight:700;white-space:nowrap}
.mast.l0{background:var(--surface2);color:var(--muted)}.mast.l1{background:var(--bad-bg);color:var(--bad)}.mast.l2{background:var(--surface2);color:var(--ink);box-shadow:inset 0 0 0 2px var(--sun)}.mast.l3{background:var(--good-bg);color:var(--good)}.mast.l4{background:var(--good);color:#fff}
.focus{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center;padding:12px 0;border-bottom:1px dashed var(--line)}
.focus:last-child{border-bottom:0}
@media (max-width:560px){.focus{grid-template-columns:1fr}}

/* ---------- sign in ---------- */
.gate{min-height:70vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;text-align:center;padding-block:30px}
.gate h1{font-size:2.6rem}
.gate .logo{width:110px;height:110px}
.profiles{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.profile{display:flex;flex-direction:column;align-items:center;gap:8px;border:3px solid var(--line);background:var(--surface);border-radius:22px;padding:16px 22px;min-width:130px}
.profile:hover,.profile[aria-pressed="true"]{border-color:var(--brand)}
.avatar{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;background:var(--surface2)}
.avatar svg{width:44px;height:44px}
.avatar.big{width:96px;height:96px}.avatar.big svg{width:68px;height:68px}
.avatar.small{width:34px;height:34px}.avatar.small svg{width:24px;height:24px}
.pinpad{display:grid;grid-template-columns:repeat(3,72px);gap:10px;justify-content:center}
.pinpad button{height:64px;border-radius:18px;border:2px solid var(--line);background:var(--surface);font-size:1.5rem;font-weight:700;box-shadow:0 4px 0 var(--line)}
.pinpad button:active{transform:translateY(3px);box-shadow:0 1px 0 var(--line)}
.pindots{display:flex;gap:12px;justify-content:center;min-height:22px}
.pindots i{width:18px;height:18px;border-radius:50%;border:2px solid var(--line);background:var(--surface)}
.pindots i.on{background:var(--brand);border-color:var(--brand)}
.err{color:var(--bad);font-weight:600;min-height:1.4em}
.avatarpick{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
.avatarpick button{border:3px solid var(--line);border-radius:50%;background:var(--surface);padding:4px}
.avatarpick button[aria-pressed="true"]{border-color:var(--brand)}

/* ---------- game layer ---------- */
.xpbar{position:relative;height:22px;background:var(--surface2);border-radius:99px;overflow:hidden;border:2px solid var(--line)}
.xpbar>i{display:block;height:100%;background:linear-gradient(90deg,var(--sun),#ff9f1c);border-radius:99px;transition:width .6s cubic-bezier(.2,.8,.2,1)}
.xpbar>span{position:absolute;inset:0;display:grid;place-items:center;font-size:.8rem;font-weight:700;color:var(--ink)}
.quest{display:grid;grid-template-columns:44px 1fr auto;gap:12px;align-items:center;padding:10px 0;border-bottom:1px dashed var(--line)}
.quest:last-child{border-bottom:0}
.quest .ico{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:var(--surface2);font-size:1.3rem}
.quest.done .ico{background:var(--good-bg)}
.quest .bar{height:8px;background:var(--surface2);border-radius:9px;overflow:hidden;margin-top:4px}
.quest .bar i{display:block;height:100%;border-radius:9px;background:var(--brand)}
.quest .xp{font-weight:700;color:var(--sun-ink);background:var(--sun);padding:2px 10px;border-radius:999px;font-size:.85rem;white-space:nowrap}
.quest.done .xp{background:var(--good);color:#fff}
.track{display:flex;gap:10px;overflow-x:auto;padding:10px 2px 14px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.tier{flex:0 0 118px;scroll-snap-align:start;border:2px solid var(--line);border-radius:16px;padding:10px;background:var(--surface);display:flex;flex-direction:column;gap:6px;align-items:center;text-align:center;position:relative}
.tier.got{border-color:var(--good);background:var(--good-bg)}
.tier.next{border-color:var(--sun);box-shadow:0 0 0 3px color-mix(in srgb,var(--sun) 35%,transparent)}
.tier .n{font-family:var(--display);font-size:1.1rem}
.tier .ico{font-size:1.6rem}
.tier .need{font-size:.75rem;color:var(--muted);font-variant-numeric:tabular-nums}
.tier.got::after{content:"✓";position:absolute;top:6px;right:8px;font-weight:700;color:var(--good)}
.coin{display:inline-flex;align-items:center;gap:4px;font-weight:700}
.coin::before{content:"";width:14px;height:14px;border-radius:50%;background:var(--sun);box-shadow:inset 0 0 0 3px #e0a400;display:inline-block}
.reward{position:fixed;inset:0;display:grid;place-items:center;background:rgba(0,0,0,.55);z-index:40;padding:20px}
.reward .box{background:var(--surface);border-radius:26px;padding:28px;max-width:420px;width:100%;text-align:center;display:flex;flex-direction:column;gap:12px;align-items:center;animation:pop .4s cubic-bezier(.2,1.4,.3,1)}
@keyframes pop{from{transform:scale(.6);opacity:0}to{transform:scale(1);opacity:1}}
.chest{width:120px;height:120px}
.reward h2{font-size:2rem}
.scorebig{font-family:var(--display);font-size:3.6rem;line-height:1}
.scorerow{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center;padding:12px 0;border-bottom:1px dashed var(--line)}
.scorerow:last-child{border-bottom:0}
.sparkline{width:120px;height:36px}
.target{font-size:.8rem;color:var(--muted)}
.hud{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:center}
@media (max-width:560px){.hud{grid-template-columns:1fr}}
.wk{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}
.wk div{aspect-ratio:1;border-radius:10px;background:var(--surface2);display:grid;place-items:center;font-size:.8rem;font-weight:700;color:var(--muted)}
.wk div.on{background:var(--good);color:#fff}
.wk div.today{box-shadow:inset 0 0 0 2px var(--brand)}
.paperrow{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center;padding:10px 0;border-bottom:1px dashed var(--line)}
.paperrow:last-child{border-bottom:0}
.textframe{width:100%;height:70vh;border:2px solid var(--line);border-radius:14px;background:var(--surface)}
.qimg{max-width:100%;height:auto;border-radius:10px;border:1px solid var(--line);background:#fff}
.grownupbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;background:var(--surface2);border-radius:14px;padding:10px 14px}
.subtle{font-size:.8rem;color:var(--muted)}
kbd{font-family:var(--mono);background:var(--surface2);padding:1px 6px;border-radius:6px}
@media (max-width:560px){header.top .wrap:first-child{padding-block:8px}.brand{font-size:1.15rem}.brand svg{width:28px;height:28px}.chips{margin-left:0;width:100%;gap:6px}.chip{padding:3px 8px;font-size:.85rem}#whoami .avatar.small{width:26px;height:26px}#whoami .avatar.small span{font-size:.9rem}}

/* working-out pad (finger or pencil) under a question */
.pad{border:2px dashed var(--line);border-radius:14px;overflow:hidden;background:#fff}
.pad canvas{display:block;width:100%;height:260px;touch-action:none;cursor:crosshair;-webkit-user-select:none;user-select:none}
.padbar{padding:6px 8px;background:var(--surface);border-bottom:1px solid var(--line)}
.padbar .btn{font-size:.85rem;padding:5px 10px}
.padbar .btn[aria-pressed="true"],#padBtn[aria-pressed="true"]{box-shadow:inset 0 0 0 2px var(--brand)}