@font-face{font-family:"Bricolage";src:url("/static/fonts/bricolage.woff2") format("woff2");font-weight:200 800;font-display:swap}
:root{
  --ground:#ecedef; --surface:#fff; --soft:#f4f5f6; --line:#dfe1e5; --line-2:#e9eaed;
  --ink:#15171a; --ink-2:#3a3f46; --muted:#6b7079;
  --base:#17181b; --base-ink:#edeef0; --base-2:#26282d;
  --accent:#73ccdf; --accent-deep:#137f97; --accent-soft:#e2f4f8; --accent-ink:#0d3a45;
  --strength:#1f8a57; --strength-bg:#e3f4ea; --suggest:#b25e14; --suggest-bg:#fbeedf; --heart:#e5245c; --danger:#b23b3b;
  --display:"Bricolage","SF Pro Display",-apple-system,"Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;
  --sans:-apple-system,"SF Pro Text","Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  --r:16px; --shadow:0 1px 2px #0f11140d,0 8px 24px #0f11140a; --shadow-lg:0 2px 6px #0f111414,0 24px 48px #0f11141f;
  --page:1440px; --gut:40px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--ground);color:var(--ink);font:15px/1.5 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--accent-deep);outline-offset:2px;border-radius:6px}
[hidden]{display:none!important}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.grow{flex:1}

/* ---------- app bar (platform chrome) ---------- */
.appbar{position:sticky;top:0;z-index:15;display:flex;align-items:center;gap:14px;height:60px;padding:0 var(--gut);
  background:color-mix(in srgb,var(--base) 94%,transparent);backdrop-filter:saturate(1.4) blur(12px);color:var(--base-ink)}
.logo{display:inline-flex;align-items:center;gap:10px;color:inherit;text-decoration:none}
.mark{width:26px;height:26px}
.mark rect{fill:var(--accent)}
.mark .m2{fill:#ffffff38}
.mark .m3{fill:#fff}
.wordmark{font:700 19px/1 var(--display);letter-spacing:-.02em}
.board-pick{position:relative;margin-left:10px;padding-left:16px;border-left:1px solid #ffffff1f}
.board-pick select{appearance:none;background:#ffffff0f;border:1px solid #ffffff1a;border-radius:999px;color:var(--base-ink);
  padding:6px 32px 6px 14px;font-size:13.5px;font-weight:600;max-width:340px;text-overflow:ellipsis;cursor:pointer}
.board-pick::after{content:"";position:absolute;right:13px;top:50%;width:7px;height:7px;border-right:1.6px solid #cfd2d6;border-bottom:1.6px solid #cfd2d6;transform:translateY(-70%) rotate(45deg);pointer-events:none}
.board-pick select:hover{background:#ffffff1a}
.board-pick select option{color:#111}
.live{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;color:#9ea3aa;font-weight:600}
.live i{width:7px;height:7px;border-radius:50%;background:#666a70}
.live.on i{background:#3ccf82;box-shadow:0 0 0 3px #3ccf8230;animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{50%{box-shadow:0 0 0 6px #3ccf8200}}
.studio{display:inline-flex;align-items:center;gap:9px;padding-left:16px;margin-left:4px;border-left:1px solid #ffffff1f;color:#aeb2b8;white-space:nowrap}
.studio .seal{width:22px;height:22px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:1.5px solid var(--accent);color:var(--accent);font:800 11px/1 var(--display);letter-spacing:0}
.studio-name{font:600 11px/1 var(--sans);letter-spacing:.2em;text-transform:uppercase}
.studio-name b{color:var(--base-ink);font-weight:800;letter-spacing:.22em}
.jhead .logo{display:flex;align-items:center;gap:10px;color:var(--base-ink)}
.jhead .studio{border-left:0;padding-left:0}
.chip{display:inline-flex;align-items:center;gap:8px;background:#ffffff0f;border:1px solid #ffffff1f;color:var(--base-ink);border-radius:999px;padding:3px 13px 3px 3px;font-weight:600;font-size:13.5px}
.chip:hover{background:#ffffff1a}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:999px;padding:9px 18px;font-weight:650;font-size:14px;white-space:nowrap;
  background:var(--ink);color:#fff;transition:transform .12s,background .15s,box-shadow .15s}
.btn:hover{background:#000;box-shadow:0 6px 16px #0f111429}
.btn:active{transform:translateY(1px)}
.btn[disabled]{opacity:.4;cursor:not-allowed;box-shadow:none}
.btn.primary{background:var(--ink);color:#fff}
.btn.primary::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent)}
.btn.lg{padding:14px 26px;font-size:15.5px}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn.ghost:hover{background:var(--soft);box-shadow:none}
.btn.ghost-dark{background:transparent;color:var(--base-ink);border:1px solid #ffffff33}
.btn.ghost-dark:hover{background:#ffffff14;box-shadow:none}
.btn.small{padding:6px 13px;font-size:12.5px}
.btn.danger{background:var(--danger);color:#fff}

/* ---------- hero (the current board) ---------- */
.hero{max-width:var(--page);margin:0 auto;padding:40px var(--gut) 26px;display:grid;grid-template-columns:1fr auto;gap:24px 40px;align-items:end}
.eyebrow{display:flex;flex-wrap:wrap;align-items:center;gap:6px 16px;font-size:13px;color:var(--muted);margin-bottom:14px;font-variant-numeric:tabular-nums}
.eyebrow .kind{font-size:11px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-ink);background:var(--accent-soft);padding:4px 10px;border-radius:999px}
.eyebrow #stats{display:inline-flex;gap:16px}
.eyebrow b{color:var(--ink);font-weight:700}
h1{margin:0;font:700 clamp(34px,4.6vw,60px)/1.02 var(--display);letter-spacing:-.03em;text-wrap:balance;max-width:18ch}
.prompt{margin:16px 0 0;color:var(--ink-2);font-size:17.5px;line-height:1.5;max-width:58ch}
.prompt:empty{display:none}

/* ---------- teacher toolbar ---------- */
.tbar{display:none;max-width:calc(var(--page) - 2*var(--gut));margin:0 auto 8px;align-items:center;gap:6px 8px;flex-wrap:wrap;
  background:var(--base);color:var(--base-ink);border-radius:14px;padding:8px 10px 8px 16px;font-size:13px;box-shadow:var(--shadow)}
.teacher .tbar{display:flex}
@media (max-width:1520px){.tbar{margin-left:var(--gut);margin-right:var(--gut)}}
.tbar .tag{font-size:10.5px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-right:8px}
.tsep{width:1px;height:20px;background:#ffffff1f;margin:0 6px}
.tbtn{display:inline-flex;align-items:center;gap:7px;background:transparent;border:0;border-radius:999px;color:#d7d9dc;padding:6px 11px;font-weight:600;font-size:13px}
.tbtn:hover{background:#ffffff14;color:#fff}
.tbtn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.tbtn.accent{background:var(--accent);color:var(--accent-ink)}
.tbtn.accent svg{stroke:none;fill:currentColor}
.tbtn.accent:hover{background:#8ad6e6;color:var(--accent-ink)}
.tbtn.quiet{color:#9ea3aa}
.switch{display:inline-flex;align-items:center;gap:8px;cursor:pointer;user-select:none;padding:6px 8px;color:#d7d9dc;font-weight:600}
.switch input{appearance:none;width:32px;height:19px;border-radius:999px;background:#4a4d53;position:relative;transition:background .15s;cursor:pointer;margin:0}
.switch input::after{content:"";position:absolute;top:3px;left:3px;width:13px;height:13px;border-radius:50%;background:#fff;transition:left .15s}
.switch input:checked{background:var(--accent-deep)}
.switch input:checked::after{left:16px}

/* ---------- toolbar + wall ---------- */
.tools{max-width:var(--page);margin:0 auto;padding:14px var(--gut) 0;display:flex;align-items:center;gap:10px}
.seg{display:inline-flex;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:3px}
.seg button{border:0;background:none;border-radius:999px;padding:5px 14px;font-size:13px;color:var(--muted);font-weight:600}
.seg button:hover{color:var(--ink)}
.seg button[aria-pressed="true"]{background:var(--ink);color:#fff}
.seg.dark{background:#2b2d31;border-color:#3a3d42}
.seg.dark button{color:#b6b9be}
.seg.dark button[aria-pressed="true"]{background:#f1f2f3;color:#111}
main{max-width:var(--page);margin:0 auto;padding:18px var(--gut) 90px}
.wall{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:26px}
.card{background:var(--surface);border-radius:var(--r);border:1px solid var(--line-2);box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;padding:0;text-align:left;
  transition:transform .2s cubic-bezier(.2,.7,.2,1),box-shadow .2s;position:relative}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card.fresh{animation:fresh 1.8s ease-out}
@keyframes fresh{0%{box-shadow:0 0 0 4px var(--accent),var(--shadow)}100%{box-shadow:var(--shadow)}}
.card.hidden-w{opacity:.45}
.thumb{position:relative;aspect-ratio:16/10.6;overflow:hidden;background:#e4e6e9;border-bottom:1px solid var(--line-2)}
.thumb::before{content:"";position:absolute;inset:0 0 auto 0;height:24px;z-index:1;background:#f3f4f6;border-bottom:1px solid var(--line-2);
  background-image:radial-gradient(circle,#ff5f57 3.4px,transparent 3.9px),radial-gradient(circle,#febc2e 3.4px,transparent 3.9px),radial-gradient(circle,#28c840 3.4px,transparent 3.9px);
  background-size:14px 24px;background-position:10px 0,24px 0,38px 0;background-repeat:no-repeat}
.thumb iframe{position:absolute;top:24px;left:0;width:1280px;height:800px;border:0;transform-origin:0 0;transform:scale(var(--s,.25));pointer-events:none;background:#fff}
.thumb img{position:absolute;top:24px;left:0;width:100%;height:calc(100% - 24px);object-fit:cover;object-position:top}
.badge{position:absolute;top:34px;left:10px;z-index:2;background:var(--base);color:#fff;font-size:10.5px;font-weight:800;letter-spacing:.1em;padding:4px 9px;border-radius:999px;text-transform:uppercase}
.badge.hid{left:auto;right:10px;background:var(--danger)}
.badge.mine{left:auto;right:10px;background:var(--accent);color:var(--accent-ink)}
.meta{padding:14px 16px 15px;display:grid;grid-template-columns:1fr auto;grid-template-areas:"t t" "by row";gap:8px 12px;align-items:center}
.meta .t{grid-area:t;font:700 17.5px/1.25 var(--display);letter-spacing:-.01em}
.meta .by{grid-area:by;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);min-width:0}
.meta .by span:last-child{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.meta .row{grid-area:row;display:flex;gap:12px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.meta .row span{display:inline-flex;align-items:center;gap:4px}
.meta .row svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2}
.meta .row .liked{color:var(--heart)}
.meta .row .liked svg{fill:currentColor}
.empty{grid-column:1/-1;text-align:center;color:var(--muted);padding:90px 0;font-size:16px}

/* ---------- avatars ---------- */
.av{--h:200;width:36px;height:36px;border-radius:50%;flex:none;display:inline-flex;align-items:center;justify-content:center;
  background:hsl(var(--h) 55% 90%);color:hsl(var(--h) 45% 28%);font-weight:750;font-size:13px;letter-spacing:.02em;user-select:none}
.av.sm{width:30px;height:30px;font-size:11.5px}
.av.xs{width:24px;height:24px;font-size:10px}
.av.anon{background:#e4e5e8;color:#8a8e95}
.av.teacher{background:var(--base);color:var(--accent)}

/* ---------- viewer ---------- */
.overlay{position:fixed;inset:0;background:#0c0d0fd9;display:none;z-index:20;padding:26px 64px;backdrop-filter:blur(6px)}
.overlay.on{display:flex;align-items:center;justify-content:center;animation:fade .18s ease-out}
@keyframes fade{from{opacity:0}}
.viewer{background:var(--surface);border-radius:18px;width:min(1520px,100%);height:min(940px,100%);display:grid;grid-template-columns:1fr 390px;overflow:hidden;box-shadow:0 40px 100px #000a;animation:rise .22s cubic-bezier(.2,.7,.2,1)}
@keyframes rise{from{transform:translateY(10px) scale(.99);opacity:.6}}
.stage{background:#1d1f23;display:flex;flex-direction:column;min-width:0}
.stage-bar{display:flex;align-items:center;gap:10px;padding:10px 14px;color:#cfd2d6;font-size:13px}
.stage-bar a{color:#cfd2d6;text-decoration:none;border-bottom:1px solid #ffffff40}
.stage-bar .sp{flex:1}
.frame-wrap{flex:1;display:flex;justify-content:center;align-items:stretch;padding:0 14px 14px;min-height:0}
.frame-wrap iframe{border:0;background:#fff;border-radius:10px;width:100%;height:100%;transition:width .3s cubic-bezier(.2,.7,.2,1)}
.frame-wrap.phone iframe{width:390px;border-radius:30px;box-shadow:0 0 0 10px #0b0c0e,0 0 0 11px #3a3d42}
.frame-wrap .imgbox{overflow:auto;background:#fff;border-radius:10px;width:100%}
.frame-wrap .imgbox img{width:100%;display:block}
.close{position:absolute;top:16px;right:20px;background:#ffffff14;border:0;color:#fff;width:38px;height:38px;border-radius:50%;font-size:22px;line-height:1}
.close:hover{background:#ffffff29}
.nav{position:absolute;top:50%;transform:translateY(-50%);background:#ffffff14;border:0;color:#fff;width:42px;height:42px;border-radius:50%;font-size:22px;line-height:1}
.nav:hover{background:#ffffff29}
.nav.prev{left:12px}.nav.next{right:12px}
.side{display:flex;flex-direction:column;min-height:0;background:#fff}
.side-head{padding:20px 20px 12px;border-bottom:1px solid var(--line-2)}
.post-author{display:flex;gap:10px;align-items:center}
.post-author .n{font-weight:700;font-size:14.5px;line-height:1.2}
.post-author .d{font-size:12.5px;color:var(--muted)}
.side-head .t{font:700 23px/1.15 var(--display);letter-spacing:-.02em;margin:14px 0 8px}
.acts{display:flex;gap:2px;align-items:center;margin:0 -8px}
.acts .sp{flex:1}
.react{display:inline-flex;align-items:center;gap:6px;border:0;background:none;border-radius:999px;padding:7px 10px;font-weight:700;font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums}
.react svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linejoin:round}
.react:not(.static):hover{background:#fde8ee;color:var(--heart)}
.react[aria-pressed="true"]{color:var(--heart)}
.react[aria-pressed="true"] svg{fill:currentColor}
.react.pop svg{animation:pop .35s ease-out}
@keyframes pop{40%{transform:scale(1.35)}}
.mini{border:1px solid var(--line);background:#fff;border-radius:999px;padding:4px 11px;font-size:12px;font-weight:600;color:var(--muted)}
.mini:hover{color:var(--ink);border-color:#c9ccd1}
.mini.danger{color:var(--danger);border-color:#ecc9c9}
.tacts{display:none;gap:6px}
.teacher .tacts{display:inline-flex}
.comments{flex:1;overflow:auto;padding:8px 20px 12px}
.cm{display:flex;gap:10px;padding:11px 0}
.cm .body{flex:1;min-width:0}
.cm .line{display:flex;align-items:baseline;gap:6px;flex-wrap:wrap}
.cm .who{font-weight:700;font-size:14px}
.cm .when{font-size:12px;color:var(--muted)}
.tagpill{font-size:10px;font-weight:800;letter-spacing:.07em;text-transform:uppercase;padding:2px 7px;border-radius:999px;background:var(--strength-bg);color:var(--strength)}
.tagpill.suggestion{background:var(--suggest-bg);color:var(--suggest)}
.cm .txt{font-size:14.5px;line-height:1.5;margin-top:2px;white-space:pre-wrap;word-break:break-word}
.cm .ctl{display:flex;gap:16px;margin-top:5px;font-size:12.5px;color:var(--muted);align-items:center}
.cm .ctl button{background:none;border:0;padding:0;color:inherit;font-weight:650;display:inline-flex;align-items:center;gap:4px}
.cm .ctl button:hover{color:var(--ink)}
.cm .ctl .hl svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2}
.cm .ctl .hl[aria-pressed="true"]{color:var(--heart)}
.cm .ctl .hl[aria-pressed="true"] svg{fill:currentColor}
.cm .ctl .del{color:#b98a8a}
.replies{margin-left:40px;border-left:2px solid var(--line-2);padding-left:12px}
.replies .cm{padding:7px 0}
.nocm{color:var(--muted);font-size:14px;padding:36px 0;text-align:center;line-height:1.6}
.compose{border-top:1px solid var(--line-2);padding:10px 14px 14px;display:flex;flex-direction:column;gap:8px;background:#fff}
.compose.guest{align-items:center;padding:18px}
.kinds{display:flex;gap:6px}
.kinds button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:3px 12px;font-size:12.5px;font-weight:700;color:var(--muted)}
.kinds button[data-k="strength"][aria-pressed="true"]{background:var(--strength-bg);border-color:transparent;color:var(--strength)}
.kinds button[data-k="suggestion"][aria-pressed="true"]{background:var(--suggest-bg);border-color:transparent;color:var(--suggest)}
.replying{display:flex;align-items:center;justify-content:space-between;background:var(--soft);border-radius:8px;padding:4px 6px 4px 10px;font-size:12.5px;color:var(--muted)}
.replying button{background:none;border:0;font-size:18px;line-height:1;color:var(--muted)}
.compose-row{display:flex;gap:8px;align-items:flex-end}
.compose-row textarea{flex:1;border:1px solid var(--line);background:var(--soft);border-radius:20px;padding:8px 15px;resize:none;min-height:38px;max-height:140px;line-height:1.4;font-size:14.5px}
.compose-row textarea:focus{background:#fff;outline:none;border-color:var(--accent-deep);box-shadow:0 0 0 3px var(--accent-soft)}
.send{width:38px;height:38px;border-radius:50%;border:0;background:var(--ink);color:#fff;display:inline-flex;align-items:center;justify-content:center;flex:none}
.send:hover{background:#000}
.send svg{width:17px;height:17px;fill:currentColor}

/* ---------- dialogs ---------- */
.modal{position:fixed;inset:0;background:#0c0d0fb3;display:none;z-index:30;align-items:center;justify-content:center;padding:18px;backdrop-filter:blur(4px)}
.modal.on{display:flex;animation:fade .15s ease-out}
.box{background:var(--surface);border-radius:20px;width:min(480px,100%);padding:26px 26px 20px;box-shadow:0 40px 100px #0006;max-height:100%;overflow:auto;animation:rise .2s cubic-bezier(.2,.7,.2,1)}
.box.wide{width:min(1040px,100%)}
.box h2{margin:0 0 6px;font:700 24px/1.15 var(--display);letter-spacing:-.02em}
.box p.sub{margin:0 0 16px;color:var(--muted);font-size:13.5px}
.fine{font-size:12.5px;color:var(--muted);margin:12px 0 0;text-align:right}
.field{display:flex;flex-direction:column;gap:5px;margin-bottom:13px}
.field label{font-size:12.5px;font-weight:700;color:var(--ink-2)}
input[type=text],input[type=password],select,textarea.plain{width:100%;border:1px solid var(--line);border-radius:10px;background:#fff;padding:10px 12px}
input[type=text]:focus,input[type=password]:focus,select:focus,textarea.plain:focus{outline:none;border-color:var(--accent-deep);box-shadow:0 0 0 3px var(--accent-soft)}
textarea.plain{min-height:90px;resize:vertical}
.drop{display:block;border:1.5px dashed #c9ccd1;border-radius:14px;padding:22px;text-align:center;color:var(--muted);font-size:13.5px;cursor:pointer;background:var(--soft);transition:border-color .15s,background .15s}
.drop.over,.drop:hover{border-color:var(--accent-deep);background:var(--accent-soft);color:var(--ink)}
.drop b{color:var(--ink)}
.box .foot{display:flex;justify-content:flex-end;gap:8px;margin-top:8px}
.err{color:var(--danger);font-size:13px;min-height:1em}
.tabs{display:flex;gap:4px;margin:-6px 0 18px;border-bottom:1px solid var(--line)}
.tabs button{border:0;background:none;padding:9px 12px;font-weight:700;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-1px}
.tabs button[aria-selected="true"]{color:var(--ink);border-bottom-color:var(--ink)}
.brand{font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:#a3a7ad;font-weight:700}
.brand.dark{color:var(--muted)}

/* ---------- QR ---------- */
.qr-box{background:var(--surface);border-radius:26px;padding:44px;display:grid;grid-template-columns:1fr auto;gap:48px;align-items:center;width:min(1060px,100%);box-shadow:0 40px 100px #0008;animation:rise .2s ease-out}
.qr-left h2{font:700 40px/1.05 var(--display);letter-spacing:-.03em;margin:8px 0 18px}
.qr-left ol{margin:0 0 24px;padding-left:22px;font-size:17px;line-height:1.7;color:var(--ink-2)}
.code-label{font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-weight:800}
.code{font:700 52px/1 var(--display);letter-spacing:.14em;margin:6px 0 10px;font-variant-numeric:tabular-nums}
.url{font-size:13px;color:var(--muted);margin-bottom:22px;word-break:break-all}
.qr-img{background:#fff;padding:20px;border-radius:18px;border:1px solid var(--line-2);box-shadow:var(--shadow)}
.qr-img svg{display:block;width:min(46vh,420px);height:auto}

/* ---------- roster ---------- */
.roster-head{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:6px}
.roster-head h2{margin:0}
.roster-head select{width:auto;padding:7px 10px}
.roster-head .sp{flex:1}
.table-wrap{overflow:auto;max-height:60vh;border:1px solid var(--line);border-radius:12px}
table.roster{border-collapse:collapse;width:100%;font-size:13.5px;min-width:780px}
table.roster th,table.roster td{padding:9px 12px;border-bottom:1px solid var(--line-2);text-align:left;white-space:nowrap}
table.roster tbody tr:hover{background:var(--soft)}
table.roster th{position:sticky;top:0;background:var(--soft);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
table.roster .n{text-align:right;font-variant-numeric:tabular-nums}
table.roster .zero{color:#c24a2c;font-weight:700}
table.roster td button{margin-left:4px}

/* ---------- menu, toast, misc ---------- */
.menu{position:fixed;z-index:25;background:#fff;border-radius:14px;box-shadow:var(--shadow-lg);min-width:230px;padding:6px;font-size:14px;border:1px solid var(--line-2)}
.menu-head{padding:9px 10px 11px;border-bottom:1px solid var(--line-2);margin-bottom:4px;color:var(--muted);font-size:13px}
.menu-head b{color:var(--ink);display:block;font-size:14.5px}
.menu button{display:block;width:100%;text-align:left;border:0;background:none;padding:9px 10px;border-radius:8px}
.menu button:hover{background:var(--soft)}
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,8px);background:var(--base);color:#fff;padding:10px 18px;border-radius:999px;font-size:13.5px;font-weight:600;opacity:0;transition:opacity .2s,transform .2s;z-index:40;pointer-events:none;box-shadow:var(--shadow-lg)}
.toast.on{opacity:1;transform:translate(-50%,0)}
.lock{position:fixed;right:16px;bottom:14px;background:none;border:0;color:#a3a7ad;font-size:12px;font-weight:600}
.lock:hover{color:var(--ink)}

@media (max-width:900px){
  :root{--gut:16px}
  .appbar{gap:10px}
  .board-pick{margin-left:0;padding-left:10px}
  .board-pick select{max-width:44vw}
  .live span{display:none}
  .hero{grid-template-columns:1fr;padding-top:30px}
  .hero-side .btn{width:100%}
  .tbar{margin-left:var(--gut);margin-right:var(--gut)}
  .wall{grid-template-columns:1fr}
  .overlay{padding:0}
  .viewer{grid-template-columns:1fr;grid-template-rows:48% 52%;height:100%;border-radius:0}
  .frame-wrap.phone iframe{width:100%;border-radius:10px;box-shadow:none}
  .nav{display:none}
  .close{top:8px;right:10px;z-index:2}
  .qr-box{grid-template-columns:1fr;padding:24px}
}
@media (max-width:560px){ .appbar .wordmark{display:none} }
@media (max-width:900px){ .appbar .studio{display:none} }
@media (max-width:420px){ .jhead .studio-name{display:none} }
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}