:root{
  --teal:#0f766e; --teal-d:#115e59; --teal-l:#ccfbf1;
  --coral:#f2665a; --amber:#f4a524; --amber-l:#fef3c7;
  --ink:#1f2937; --soft:#4b5563; --mute:#8b96a3;
  --bg:#faf8f4; --card:#ffffff; --line:#e8e3da; --ok:#15803d;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);
  font:15px/1.55 "Segoe UI",Inter,system-ui,-apple-system,sans-serif}
a{color:var(--teal);text-decoration:none} a:hover{text-decoration:underline}
header{background:var(--teal);color:#fff;padding:0 20px;position:sticky;top:0;z-index:9}
header .in{max-width:1120px;margin:0 auto;display:flex;align-items:center;gap:18px;height:56px}
header .brand{font-weight:700;font-size:17px;letter-spacing:.2px}
header nav{display:flex;gap:16px;margin-left:auto;flex-wrap:wrap}
header nav a{color:#d7f2ee;font-size:14px}
header nav a:hover{color:#fff}
.wrap{max-width:1120px;margin:0 auto;padding:24px 20px 60px}
h1{font-size:24px;margin:0 0 4px} h2{font-size:17px;margin:26px 0 12px}
.sub{color:var(--mute);font-size:14px;margin:0 0 18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin-bottom:16px}
.grid{display:grid;gap:16px} .g2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}
table{width:100%;border-collapse:collapse;font-size:14px}
th{text-align:left;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--mute);
  padding:8px 10px;border-bottom:2px solid var(--line)}
td{padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
tr:last-child td{border-bottom:0}
.btn{display:inline-block;background:var(--teal);color:#fff;border:0;border-radius:8px;
  padding:8px 14px;font-size:14px;cursor:pointer;font-family:inherit}
.btn:hover{background:var(--teal-d);text-decoration:none;color:#fff}
.btn.ghost{background:#fff;color:var(--teal);border:1px solid var(--teal)}
.btn.coral{background:var(--coral)} .btn.amber{background:var(--amber);color:#5b4106}
.btn.sm{padding:5px 10px;font-size:12.5px}
input,select,textarea{font:inherit;padding:8px 10px;border:1px solid var(--line);
  border-radius:8px;background:#fff;width:100%}
label{display:block;font-size:12.5px;color:var(--soft);margin:10px 0 4px;font-weight:600}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:end}
.pill{display:inline-block;padding:2px 9px;border-radius:99px;font-size:11.5px;font-weight:600}
.p-sug{background:#eef2f7;color:#55637a} .p-acc{background:var(--teal-l);color:var(--teal-d)}
.p-skip{background:#f3f4f6;color:#9ca3af} .p-done{background:#dcfce7;color:var(--ok)}
.p-new{background:var(--amber-l);color:#92400e}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px}
.kpi .v{font-size:26px;font-weight:700;color:var(--teal)} .kpi .l{font-size:12px;color:var(--mute)}
.bar{height:8px;background:#eee;border-radius:99px;overflow:hidden}
.bar>i{display:block;height:100%;background:var(--teal)}
.flash{background:var(--amber-l);border:1px solid #fcd34d;color:#92400e;
  padding:10px 14px;border-radius:8px;margin-bottom:16px;font-size:14px}
.day{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--coral);font-weight:700}
.muted{color:var(--mute);font-size:13px}
.big{font-size:15px}
.login{max-width:380px;margin:9vh auto}
.login .card{padding:28px}

/* ============ KID SCALE — NN/g: touch targets >= 2cm (~76px) for ages 4-8 */
body.kid{font-size:19px;line-height:1.6}
body.kid .wrap{max-width:900px;padding:28px 22px 80px}
body.kid h1{font-size:34px;margin-bottom:6px}
body.kid h2{font-size:22px;margin:34px 0 14px}
body.kid header .in{height:72px}
body.kid header .brand{font-size:22px}
body.kid header nav a{font-size:17px}
.bigbtn{display:inline-flex;align-items:center;justify-content:center;gap:12px;
  min-height:82px;min-width:82px;padding:0 32px;border-radius:20px;border:0;
  background:var(--coral);color:#fff;font-size:23px;font-weight:700;cursor:pointer;
  box-shadow:0 4px 0 #d1493e;font-family:inherit;text-align:center}
.bigbtn:hover{background:#e2564b;color:#fff;text-decoration:none}
.bigbtn:active{transform:translateY(3px);box-shadow:0 1px 0 #d1493e}
.bigbtn.teal{background:var(--teal);box-shadow:0 4px 0 #0b544e}
.bigbtn.teal:hover{background:var(--teal-d)}
.bigbtn.locked{background:#e9e6e0;color:#9aa1a8;box-shadow:0 4px 0 #d8d4cd;cursor:not-allowed}
.kidcard{background:#fff;border:2px solid var(--line);border-radius:20px;padding:24px;margin-bottom:18px}
.kidcard.now{border-color:var(--coral);background:#fff8f7}
.subj{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:700;
  padding:6px 14px;border-radius:99px;background:var(--teal-l);color:var(--teal-d)}
.subj.read{background:#e0e7ff;color:#3730a3}
.stars{font-size:30px;letter-spacing:4px;line-height:1.2;color:var(--amber)}
.bigbar{height:20px;background:#eee;border-radius:99px;overflow:hidden;margin-top:8px}
.bigbar>i{display:block;height:100%;background:linear-gradient(90deg,var(--teal),#34d399)}
.trophy{font-size:44px;line-height:1}
/* ============ TEACHER: today-first, data storytelling */
.today{background:linear-gradient(135deg,var(--teal),#0d9488);color:#fff;
  border-radius:14px;padding:22px 24px;margin-bottom:20px}
.today .eyebrow{font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:#a7f3d0;font-weight:700}
.today h2{color:#fff;margin:6px 0 8px;font-size:21px}
.today p{margin:0;color:#d7f2ee;font-size:15px}
.today .acts{margin-top:16px;display:flex;gap:10px;flex-wrap:wrap}
.today .acts a,.today .acts button{background:#fff;color:var(--teal-d);border:0;border-radius:8px;
  padding:9px 16px;font-size:14.5px;font-weight:600;cursor:pointer;font-family:inherit;display:inline-block}
.today .acts a:hover{text-decoration:none}
.story{background:var(--amber-l);border-left:4px solid var(--amber);border-radius:0 10px 10px 0;
  padding:14px 18px;margin:0 0 18px;font-size:15px;color:#7c4a03}
.story b{color:#5b3402}

/* ================= CLASSROOM */
.cr{display:grid;grid-template-columns:1fr 420px;gap:18px;align-items:start}
@media(max-width:980px){.cr{grid-template-columns:1fr}}
.cr-main{background:#0f172a;border-radius:14px;overflow:hidden}
.cr-vids{position:relative;background:#0f172a;aspect-ratio:16/10}
.cr-vids video{width:100%;height:100%;object-fit:cover;background:#111827}
.vid{position:absolute;inset:0}
.vid.small{inset:auto 14px 14px auto;width:172px;height:118px;border-radius:10px;
  overflow:hidden;border:2px solid rgba(255,255,255,.35);box-shadow:0 4px 14px rgba(0,0,0,.4)}
.vid .tag{position:absolute;left:12px;bottom:10px;background:rgba(0,0,0,.55);color:#fff;
  font-size:12px;padding:3px 9px;border-radius:99px}
.vid.small .tag{left:8px;bottom:6px;font-size:11px}
.cr-bar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;padding:14px 16px;background:#111827}
.cbtn{background:#1f2937;color:#e5e7eb;border:0;border-radius:9px;padding:10px 16px;
  font:inherit;font-size:14px;cursor:pointer}
.cbtn:hover{background:#374151;color:#fff;text-decoration:none}
.cbtn#joinBtn{background:var(--teal)}
.cbtn.rec{background:#7f1d1d} .cbtn.rec.on{background:var(--coral);animation:pulse 1.4s infinite}
.cbtn.danger{background:#4b1d1d} .cbtn.ghost{background:transparent;border:1px solid #374151}
.cbtn.sm{padding:6px 11px;font-size:13px}
@keyframes pulse{50%{opacity:.62}}
.cstat{margin-left:auto;color:#9ca3af;font-size:13px}
.cr-side{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;
  position:sticky;top:74px;max-height:calc(100vh - 96px);display:flex;flex-direction:column}
.side-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:10px}
.pager{display:flex;gap:8px;align-items:center;margin:10px 0}
.pager .cbtn{background:#eef2f7;color:var(--ink)} .pager .cbtn:hover{background:#e2e8f0}
.paper{flex:1;overflow:auto;border:1px solid var(--line);border-radius:10px;background:var(--bg)}
.paper img{width:100%;display:block}

/* full-screen stage: video fills the screen, controls float over it */
.cr-main:fullscreen{display:flex;flex-direction:column;background:#000}
.cr-main:fullscreen .cr-vids{flex:1;aspect-ratio:auto}
.cr-main:fullscreen .cr-vids video{object-fit:contain}
.cr-main:fullscreen .vid.small{width:210px;height:144px;inset:auto 20px 84px auto}
.cr-main:fullscreen .cr-bar{background:rgba(17,24,39,.86);backdrop-filter:blur(6px);
  position:absolute;left:0;right:0;bottom:0}
.cr-main:-webkit-full-screen{display:flex;flex-direction:column;background:#000}
body.kid .cbtn{font-size:16px;padding:13px 20px;min-height:50px}
body.kid .cr{grid-template-columns:1fr}
.recnote{color:#9ca3af;font-size:12px}

/* device pickers */
.devbar{display:none;background:#0b1220;border-top:1px solid #1f2937;padding:14px 16px}
.devbar.open{display:block}
.devrow{display:flex;align-items:center;gap:10px;margin-bottom:9px}
.devrow label{color:#cbd5e1;font-size:13px;width:118px;margin:0;font-weight:600}
.devrow select{flex:1;background:#111827;color:#e5e7eb;border:1px solid #374151;
  border-radius:8px;padding:8px 10px;font-size:13.5px;max-width:420px}
.meter{width:120px;height:11px;background:#1f2937;border-radius:99px;overflow:hidden}
.meter>i{display:block;height:100%;width:0;background:#94a3b8;transition:width .1s}
.devhint{color:#94a3b8;font-size:12.5px;margin:8px 0 0}
.cbtn.warn{background:var(--coral);color:#fff}
body.kid .devrow label{font-size:15px;width:140px}
body.kid .devrow select{font-size:15px;padding:11px}