/* Learner layer — Duolingo-style: friendly, modern, motivating (ages 5-13).
   Chunky rounded shapes, tactile 3D buttons, bold type, warm restrained colour,
   one task on screen, satisfying feedback. Distinct from the calm business side. */

:root{
  --learn-green:#159a56; --learn-green-dk:#0f7b44;
  --learn-blue:#FFB703; --learn-blue-dk:#e69500;
  --learn-amber:#FB8500; --learn-amber-dk:#d97300;
  --learn-red:#ff4b4b;
  --learn-ink:#3c3c3c; --learn-ink-2:#777; --learn-line:#e5e5e5;
  --learn-bg:#fff;
}

.learn{min-height:100vh;background:var(--learn-bg);color:var(--learn-ink);
  font-family:"Inter",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
.learn-top{display:flex;justify-content:space-between;align-items:center;
  padding:14px 20px;max-width:640px;margin:0 auto;border-bottom:2px solid var(--learn-line)}
.brand-l{display:flex;align-items:center;gap:9px;font-weight:800;color:var(--learn-ink);text-decoration:none;font-size:18px}
.mark-l{width:30px;height:30px;border-radius:10px;background:var(--learn-blue);display:grid;place-items:center;color:#fff}
.learn-wrap{max-width:560px;margin:0 auto;padding:24px 20px 80px;text-align:center}

.hello-sub{color:var(--learn-ink-2);font-size:16px;margin:0 0 24px;font-weight:600}

/* the tactile 3D push button — the signature Duolingo feel */
.btn-l{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font:inherit;font-weight:800;font-size:16px;letter-spacing:.02em;text-transform:uppercase;
  border:0;border-radius:16px;padding:15px 28px;cursor:pointer;text-decoration:none;
  transition:transform .06s, filter .1s;user-select:none}
.primary-l{background:#FFB703;color:#1D3557;box-shadow:0 4px 0 #e69500}
.primary-l:active{transform:translateY(4px);box-shadow:0 0 0 #e69500}
.blue-l{background:var(--learn-blue);color:#fff;box-shadow:0 4px 0 var(--learn-blue-dk)}
.blue-l:active{transform:translateY(4px);box-shadow:0 0 0 var(--learn-blue-dk)}
.ghost-l{background:#fff;color:var(--learn-ink-2);border:2px solid var(--learn-line);
  box-shadow:0 4px 0 var(--learn-line);text-transform:none;font-weight:700}
.ghost-l:active{transform:translateY(4px);box-shadow:0 0 0 var(--learn-line)}

/* level list — chunky friendly rows */
.lvl-l{display:flex;align-items:center;gap:14px;background:#fff;border:2px solid var(--learn-line);
  border-bottom-width:4px;border-radius:16px;padding:16px 18px;cursor:pointer;font:inherit;
  text-align:left;width:100%;font-size:16px;font-weight:700;color:var(--learn-ink);transition:transform .06s}
.lvl-l:hover{border-color:var(--learn-blue)}
.lvl-l:active{transform:translateY(2px);border-bottom-width:2px}
.lvl-l b{color:#fff;background:var(--learn-blue);border-radius:10px;padding:6px 10px;font-size:14px;min-width:44px;text-align:center}

/* the practice/flash card — big, focused, one thing */
.next-card{background:#fff;border:2px solid var(--learn-line);border-bottom-width:4px;
  border-radius:20px;padding:32px 24px;box-shadow:none}
.next-eyebrow{font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--learn-blue)}
.next-name{font-size:24px;font-weight:800;color:var(--learn-ink);margin:8px 0 22px}
.q-big{font-size:64px;font-weight:800;color:var(--learn-ink);margin:12px 0 24px;font-variant-numeric:tabular-nums;text-align:center;width:100%}
.ans-l{font-size:32px;text-align:center;max-width:220px;margin:0 auto 20px;padding:16px;
  border:2px solid var(--learn-line);border-radius:16px;font-weight:800;display:block;width:100%}
.ans-l:focus{outline:none;border-color:var(--learn-blue);box-shadow:0 0 0 4px #d7f0ff}
.fb-l{margin-top:16px;font-weight:800;font-size:18px}

/* progress stats — friendly cards */
.learn-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:26px}
@media(max-width:480px){.learn-stats{grid-template-columns:repeat(2,1fr)}}
.ls{background:#fff;border:2px solid var(--learn-line);border-bottom-width:4px;border-radius:16px;padding:16px 8px}
.ls-n{font-size:28px;font-weight:800;color:var(--learn-amber-dk)} .ls-l{font-size:12px;color:var(--learn-ink-2);font-weight:700;margin-top:2px}

/* belts */
.belt-row{display:flex;align-items:center;gap:14px;background:#fff;border:2px solid var(--learn-line);
  border-bottom-width:4px;border-radius:16px;padding:16px 18px;font-weight:700}
.belt-chip{width:30px;height:30px;border-radius:50%;border:2px solid rgba(0,0,0,.1)}

/* flash number reveal — big, punchy */
.flash-num{font-size:100px;font-weight:800;color:var(--learn-ink);font-variant-numeric:tabular-nums;line-height:1}
.flash-ready{font-size:24px;font-weight:800;color:var(--learn-blue)}
.countdown{font-size:80px;font-weight:800;color:var(--learn-amber-dk)}

/* tutor widget stays as-is (works on both layers) */
/* mode grid on home */
.mode-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:20px}
.mode-card{display:flex;flex-direction:column;align-items:flex-start;gap:2px;background:#fff;
  border:2px solid var(--learn-line);border-bottom-width:4px;border-radius:16px;padding:16px;
  text-decoration:none;transition:transform .06s,border-color .1s}
.mode-card:hover{border-color:var(--learn-blue)} .mode-card:active{transform:translateY(2px);border-bottom-width:2px}
.mode-card b{font-size:16px;color:var(--learn-ink);font-weight:800}
.mode-card span{font-size:13px;color:var(--learn-ink-2);font-weight:600}
/* reward flourish */
.reward{font-size:56px;margin-bottom:8px;animation:pop .4s ease}
@keyframes pop{0%{transform:scale(0)}70%{transform:scale(1.2)}100%{transform:scale(1)}}

/* learner accessibility */
.btn-l:focus-visible,.lvl-l:focus-visible,.mode-card:focus-visible,
.ans-l:focus-visible,.next-card select:focus-visible{outline:3px solid var(--learn-blue);outline-offset:3px}
.skip-link-l{position:absolute;left:-999px}.skip-link-l:focus{left:8px;top:8px;background:var(--navy-800);color:#fff;padding:8px 14px;border-radius:8px;z-index:100}

/* learner visual polish */
.next-card{transition:transform .1s, box-shadow .15s}
.mode-card b{display:flex;align-items:center;gap:6px}
.mode-card::after{content:"→";margin-left:auto;color:var(--learn-line);font-weight:800;align-self:flex-start}
.lvl-l{position:relative;overflow:hidden}
.lvl-l::after{content:"→";margin-left:auto;color:var(--learn-blue);font-weight:800;opacity:0;transition:opacity .1s}
.lvl-l:hover::after{opacity:1}
/* hello header a touch more character */
.hello{letter-spacing:-.02em}

/* ============ RICH STUDENT DASHBOARD (v1 parity, brand theme) ============ */
.lshell{display:grid;grid-template-columns:250px 1fr;min-height:100vh;background:#f4f6f9;font-family:"Inter",system-ui,sans-serif}
.lloading{grid-column:1/-1;text-align:center;padding:40px;color:#8d9cb4;display:flex;flex-direction:column;align-items:center;gap:14px}
.lloading::before{content:"";width:26px;height:26px;border:3px solid #e6eaf0;border-top-color:#FFB703;border-radius:50%;animation:lspin .7s linear infinite}
@keyframes lspin{to{transform:rotate(360deg)}}
.skel{background:linear-gradient(90deg,#eef1f6 25%,#f6f8fb 50%,#eef1f6 75%);background-size:200% 100%;animation:shimmer 1.2s infinite;border-radius:12px}
@keyframes shimmer{to{background-position:-200% 0}}
.skel-card{height:64px;margin-bottom:10px}
@media(max-width:820px){.lshell{grid-template-columns:1fr}}

/* sidebar — navy like v1 */
.lside{background:#1D3557;color:#fff;padding:16px 12px;display:flex;flex-direction:column;gap:4px}
.lbrand{display:flex;align-items:center;gap:10px;padding:6px 8px 14px}
.lmark{width:34px;height:34px;border-radius:9px;background:#FFB703;color:#1D3557;display:grid;place-items:center;flex:none}
.lbrand-t{font-weight:800;color:#FFB703;font-size:15px;line-height:1.1}
.lbrand-s{font-size:10px;color:#8ECAE6;letter-spacing:.03em}
.luser{display:flex;align-items:center;gap:10px;padding:10px 8px;border-top:1px solid rgba(255,255,255,.1);border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:8px}
.lav{width:34px;height:34px;border-radius:50%;background:#FFB703;color:#1D3557;display:grid;place-items:center;font-weight:800;flex:none}
.lu-name{font-weight:700;font-size:13px} .lu-mail{font-size:11px;color:#9fb3cc;max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lnav{display:flex;flex-direction:column;gap:2px;overflow:auto;flex:1}
.lnav-i{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:9px;color:#c9d6e6;
  text-decoration:none;font-size:13px;font-weight:600;cursor:pointer;border:0;background:none;text-align:left;width:100%}
.lnav-i:hover{background:rgba(255,255,255,.08);color:#fff}
.lnav-i.active{background:#FFB703;color:#1D3557}
.lnav-i .ico{width:17px;height:17px;flex:none}
.lout{color:#ff9a9a;margin-top:6px}

/* main */
.lmain{padding:22px 26px;max-width:1000px}
.lrec{background:#eef2fb;border:1px solid #dbe6fb;border-radius:14px;padding:16px 18px;margin-bottom:16px;position:relative}
.lrec-eyebrow{font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#2f74e0}
.lrec-title{font-size:19px;font-weight:800;color:#1D3557;margin:4px 0 2px}
.lrec-sub{font-size:13px;color:#5f7086}
.lrec-go{position:absolute;right:18px;top:50%;transform:translateY(-50%);color:#FB8500;font-weight:800;text-decoration:none}

.lwelcome{background:#fffbeb;border:1px solid #ffe8b0;border-radius:16px;padding:20px 22px;margin-bottom:16px}
.lw-head h1{font-size:22px;font-weight:800;color:#1D3557;margin:0 0 12px}.lw-head span{color:#FB8500}
.lw-goal{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-bottom:8px}
.lstreak{display:flex;align-items:center;gap:6px;background:#fff;border:1px solid #ffe0a0;border-radius:99px;padding:6px 14px;font-weight:700;color:#1D3557}
.lstreak .ico{color:#FB8500;width:18px;height:18px}
.lgoal{flex:1;min-width:200px}
.lgoal-top{display:flex;justify-content:space-between;font-size:12px;color:#5f7086;margin-bottom:4px;font-weight:600}
.lgoal-bar{height:10px;background:#e8edf2;border-radius:99px;overflow:hidden}
.lgoal-bar span{display:block;height:100%;background:linear-gradient(90deg,#8ae7b0,#159a56);border-radius:99px}
.lw-tag{color:#8a6d1f;font-size:13px;margin:8px 0 14px;font-weight:600}
.lquick{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.lq{background:var(--c);color:#fff;border-radius:10px;padding:9px 16px;font-weight:700;font-size:13px;text-decoration:none}
.lbig{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:16px}
@media(max-width:640px){.lbig{grid-template-columns:1fr}}
.lbig-c{background:var(--bg);border-radius:14px;padding:20px;text-align:center;text-decoration:none;border:1px solid rgba(0,0,0,.04)}
.lbig-ic{color:var(--c);margin-bottom:6px}.lbig-ic .ico{width:26px;height:26px}
.lbig-t{font-weight:800;color:var(--c);font-size:15px}.lbig-s{font-size:12px;color:#8d9cb4;margin-top:2px}
.lstats{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
@media(max-width:640px){.lstats{grid-template-columns:repeat(3,1fr)}}
.lstat{background:#fff;border:1px solid #eef0f4;border-radius:12px;padding:14px 8px;text-align:center}
.lstat-n{font-size:22px;font-weight:800;color:#1D3557}.lstat-l{font-size:11px;color:#8d9cb4;font-weight:600}

.lach-h{text-align:center;color:#FB8500;font-weight:800;margin:8px 0 12px}
.lach-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
@media(max-width:640px){.lach-grid{grid-template-columns:repeat(2,1fr)}}
.lach-c{background:#fff;border:1px solid #eef0f4;border-radius:12px;padding:14px;text-align:center;text-decoration:none}
.lach-n{font-size:20px;font-weight:800;color:#1D3557}.lach-l{font-size:12px;color:#8d9cb4;font-weight:600}

/* ============ RICH TEACHER DASHBOARD (v1 parity) ============ */
.tshell{display:grid;grid-template-columns:250px 1fr;min-height:100vh;background:#f4f6f9;font-family:"Inter",system-ui,sans-serif}
.tshell .lnav-toggle{display:none}
@media(max-width:820px){
  .tshell{grid-template-columns:1fr}
  .tshell .lside{position:fixed;top:0;left:0;bottom:0;width:260px;z-index:1000;transform:translateX(-100%);transition:transform .25s;overflow-y:auto}
  .tshell.nav-open .lside{transform:translateX(0)}
  .tshell .lnav-toggle{display:flex;position:fixed;top:12px;left:12px;z-index:1001;background:#1D3557;color:#fff;width:44px;height:44px;border:0;border-radius:10px;align-items:center;justify-content:center;font-size:20px;cursor:pointer}
  .tshell.nav-open .lnav-toggle{left:270px;background:#FFB703;color:#1D3557}
  .tshell.nav-open::after{content:"";position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:999}
  .tshell .lmain{padding-top:60px}
}
.tdash-head{text-align:center;margin-bottom:18px}
.tdash-head h1{font-size:24px;font-weight:800;color:#1D3557;margin:0}
.tsub{color:#5f7086;font-size:13px}.tsub b{color:#FB8500;letter-spacing:.05em}
.tstats3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:16px}
@media(max-width:640px){.tstats3{grid-template-columns:1fr}}
.tstat{background:#fff;border:1px solid #eef0f4;border-radius:14px;padding:16px 18px}
.tstat-l{font-size:11px;font-weight:700;color:#8d9cb4;letter-spacing:.04em}
.tstat-n{font-size:30px;font-weight:800;color:#1D3557;margin:2px 0}
.tstat-s{font-size:12px;color:#8d9cb4}
.tcode-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px}
@media(max-width:640px){.tcode-row{grid-template-columns:1fr}}
.tcode{background:#fffbeb;border:1px solid #ffe8b0;border-radius:14px;padding:16px 18px}
.tcode-l{font-size:11px;font-weight:700;color:#8a6d1f;letter-spacing:.04em}
.tcode-v{font-size:28px;font-weight:800;color:#FB8500;letter-spacing:.08em;margin:4px 0 10px}
.ttrack{background:#eefaf2;border:1px solid #b8e6cd;border-radius:14px;padding:16px 18px;font-size:13px;color:#0f7b44}
.ttrack .ico{color:#159a56;width:18px;height:18px;vertical-align:middle}.ttrack span{color:#5f7086}
.tstats6{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;margin-bottom:16px}
@media(max-width:820px){.tstats6{grid-template-columns:repeat(3,1fr)}}
.t6{background:#fff;border:1px solid #eef0f4;border-radius:12px;padding:14px 8px;text-align:center}
.t6-n{font-size:22px;font-weight:800}.t6-l{font-size:11px;color:#8d9cb4;font-weight:600}
.tcard{background:#fff;border:1px solid #eef0f4;border-radius:14px;padding:16px 18px;margin-bottom:16px}
.tcard-h{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;color:#1D3557}
.tclass,.tstudent{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-top:1px solid #f0f2f5}
.tempty{color:#8d9cb4;font-size:13px;text-align:center;padding:16px}
.cap{color:#8d9cb4;font-size:12px}
.lav.sm{width:30px;height:30px;font-size:13px}
.btn.accent2{background:#FB8500;color:#fff;border:0;border-radius:9px;padding:8px 14px;font-weight:700;font-size:13px;cursor:pointer;text-decoration:none}
.btn.accent2.sm{padding:6px 11px;font-size:12px}
.btn.wa{background:#25d366;color:#fff;border:0;border-radius:9px;padding:8px 14px;font-weight:700;font-size:13px;text-decoration:none}
.tform{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:12px;padding:12px;background:#f8f9fb;border-radius:10px}
.tform input,.tform select{padding:8px 10px;border:1px solid #dde4ee;border-radius:8px;font:inherit;font-size:13px}
@media(max-width:640px){.tform{grid-template-columns:1fr}}

/* ============ CONTENT PAGES (professional, brand theme) ============ */
.content-page{max-width:860px}
.cp-head{margin-bottom:20px}
.cp-head h1{font-size:26px;font-weight:800;color:#1D3557;margin:0 0 6px}
.cp-head p{color:#5f7086;font-size:14px;margin:0}
.cp-section{margin-bottom:22px}
.cp-section h2{font-size:16px;font-weight:800;color:#FB8500;margin:0 0 4px}
.cp-note{font-size:13px;color:#8d9cb4;margin:0 0 10px}
.fgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px}
.fcard{background:#fffbeb;border:1px solid #ffe8b0;border-radius:12px;padding:14px;text-align:center}
.fa{font-size:22px;font-weight:800;color:#1D3557}.fb{font-size:14px;color:#FB8500;font-weight:700;margin-top:4px}
.cp-tip{background:#eef2fb;border-left:4px solid #2f74e0;border-radius:0 10px 10px 0;padding:12px 16px;color:#1D3557;font-size:13.5px;margin-top:8px}
.cp-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;margin-bottom:16px}
.cp-c{background:#fff;border:1px solid #eef0f4;border-radius:14px;padding:18px}
.cp-c-ic{font-size:30px;margin-bottom:6px}
.cp-c h3{font-size:15px;font-weight:800;color:#1D3557;margin:0 0 4px}.cp-c p{font-size:13px;color:#5f7086;margin:0;line-height:1.5}
.cp-steps,.cp-lessons{display:flex;flex-direction:column;gap:12px}
.cp-step{display:flex;gap:14px;background:#fff;border:1px solid #eef0f4;border-radius:14px;padding:16px 18px}
.cp-num{width:32px;height:32px;border-radius:50%;background:#FFB703;color:#1D3557;display:grid;place-items:center;font-weight:800;flex:none}
.cp-step h3{font-size:15px;font-weight:800;color:#1D3557;margin:0 0 2px}.cp-step p{font-size:13px;color:#5f7086;margin:0}
.cp-lesson{background:#fff;border:1px solid #eef0f4;border-radius:14px;padding:16px 18px}
.cp-lnum{font-size:11px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:#FB8500}
.cp-lesson h3{font-size:16px;font-weight:800;color:#1D3557;margin:4px 0 2px}.cp-lesson p{font-size:13px;color:#5f7086;margin:0}

/* ============ HOMEWORK + ARCADE ============ */
.hw-item{display:flex;justify-content:space-between;align-items:center;background:#fff;border:1px solid #eef0f4;border-radius:14px;padding:16px 18px;margin-bottom:10px}
.hw-item.done{opacity:.7;background:#f6faf7}
.hw-badge{background:#eefaf2;color:#0f7b44;font-weight:800;border-radius:99px;padding:6px 14px}
.arcade-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px;margin-bottom:20px}
.arcade-c{background:#fff;border:2px solid var(--c);border-bottom-width:5px;border-radius:16px;padding:20px;text-align:left;cursor:pointer;transition:transform .06s}
.arcade-c:active{transform:translateY(3px);border-bottom-width:2px}
.arcade-t{font-size:18px;font-weight:800;color:var(--c)}.arcade-d{font-size:13px;color:#5f7086;margin:4px 0 10px}
.arcade-play{font-weight:800;color:var(--c)}
.game-box{background:#fff;border:2px solid #eef0f4;border-radius:20px;padding:28px 24px;text-align:center;max-width:440px;margin:0 auto}
.game-hud{display:flex;justify-content:space-between;font-weight:700;color:#1D3557;margin-bottom:16px}
.game-q{font-size:52px;font-weight:800;color:#1D3557;margin:12px 0 20px}

/* ============ PARENT (rich) + WEEK PLAN + WORKSHEETS ============ */
.pkid{background:#fff;border:1px solid #eef0f4;border-radius:16px;padding:18px 20px;margin-bottom:14px}
.pkid-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.pkid-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:10px}
@media(max-width:520px){.pkid-stats{grid-template-columns:repeat(2,1fr)}}
.pkid-stats div{text-align:center;background:#f8f9fb;border-radius:10px;padding:10px}
.pkid-stats b{display:block;font-size:22px;color:#1D3557;font-weight:800}.pkid-stats span{font-size:11px;color:#8d9cb4}
.pkid-nudge{background:#fffbeb;border-left:3px solid #FFB703;border-radius:0 8px 8px 0;padding:10px 14px;font-size:13.5px;color:#8a6d1f}
.week-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}
.week-day{background:#fff;border:1px solid #eef0f4;border-bottom:4px solid #FFB703;border-radius:14px;padding:16px;text-decoration:none;transition:transform .06s}
.week-day:active{transform:translateY(2px)}
.week-d{font-size:12px;font-weight:800;color:#FB8500;text-transform:uppercase;letter-spacing:.04em}
.week-m{font-size:16px;font-weight:800;color:#1D3557;margin:4px 0 2px}.week-n{font-size:12px;color:#8d9cb4}
.ws-controls{display:flex;gap:10px;align-items:center;margin-bottom:16px;flex-wrap:wrap}
.ws-controls select{padding:10px;border:1px solid #dde4ee;border-radius:10px;font:inherit}
.ws{background:#fff;border:1px solid #eef0f4;border-radius:14px;padding:24px}
.ws-head{display:flex;justify-content:space-between;align-items:baseline;border-bottom:2px solid #1D3557;padding-bottom:10px;margin-bottom:16px;flex-wrap:wrap;gap:8px}
.ws-head h2{margin:0;color:#1D3557;font-size:18px}.ws-head span{color:#8d9cb4;font-size:13px}
.ws-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:600px){.ws-grid{grid-template-columns:repeat(2,1fr)}}
.ws-q{font-size:15px;color:#1D3557;font-weight:600}.ws-n{color:#8d9cb4;margin-right:4px}
@media print{.lside,.ws-controls,.cp-head p{display:none!important}.lshell{grid-template-columns:1fr}.ws{border:0}}
.av-pick{width:48px;height:48px;font-size:26px;background:#fff;border:2px solid var(--learn-line,#e5e5e5);border-radius:12px;cursor:pointer}
.av-pick:hover{border-color:#FFB703}
.lmark-logo,.mark-l-logo{display:inline-flex;flex:none}
.lmark-logo svg,.mark-l-logo svg{border-radius:8px}

/* formula tables (times tables, tips) */
.ft-list{display:grid;gap:6px}
.ft-row{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid #eef0f4;border-radius:10px;padding:10px 14px}
.ft-a{font-weight:800;color:var(--c);min-width:48px;font-size:15px}
.ft-b{color:#1D3557;font-size:14px}
/* AI lesson answers */
.lesson-answer{margin-top:12px}
.lesson-answer .tmsg{background:#eef2fb;border-radius:10px;padding:12px 14px;font-size:13.5px;color:#1D3557;line-height:1.6}
.lesson-clickable{transition:border-color .12s}
.lesson-clickable:hover{border-color:#FFB703}
/* finger demo */
.finger-demo{background:#fff;border:1px solid #eef0f4;border-radius:14px;padding:20px;margin-bottom:20px;max-width:420px}
.va-num{font-size:56px;font-weight:800;color:#FB8500;margin-bottom:12px}
/* formula drill cards */
.drill-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-bottom:16px}
@media(max-width:640px){.drill-grid{grid-template-columns:1fr}}
.drill-card{background:#fff;border:2px solid var(--c);border-left-width:5px;border-radius:14px;padding:18px;text-align:left;cursor:pointer;transition:transform .06s}
.drill-card:hover{transform:translateY(-1px)}
.drill-card.is-mastered{background:#f6faf7}
.drill-card.is-locked{opacity:.5;cursor:not-allowed}
.drill-name{font-weight:800;color:var(--c);font-size:16px;display:flex;align-items:center;gap:8px}
.drill-desc{font-size:13px;color:#5f7086;margin:4px 0 10px}
.drill-tags{display:flex;gap:6px;flex-wrap:wrap}
.drill-tag{background:color-mix(in srgb, var(--c) 12%, white);color:var(--c);border-radius:6px;padding:2px 8px;font-size:12px;font-weight:700}
.va-controls{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-bottom:16px;background:#fff;border:1px solid #eef0f4;border-radius:12px;padding:14px 16px}
.va-controls label{font-weight:700;color:#1D3557;font-size:14px}
.va-controls select,.va-set input{padding:8px 10px;border:1px solid #dde4ee;border-radius:8px;font:inherit}
.va-set{display:flex;gap:8px;align-items:center;margin-left:auto}
.va-board{background:#fff;border:1px solid #eef0f4;border-radius:14px;padding:24px;display:flex;justify-content:center;min-height:280px;align-items:center}
.va-board svg{max-width:520px;width:100%;height:auto}
.va-board #abacus{width:100%;text-align:center}
/* speed drills categories */
.speed-cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.speed-cat{background:#fff;border:1px solid #eef0f4;border-top:4px solid var(--c);border-radius:14px;padding:18px}
.speed-cat h2{font-size:16px;margin:0 0 4px}
.speed-items{display:grid;gap:8px;margin-top:12px}
.speed-item{background:color-mix(in srgb,var(--c) 8%,white);border:1px solid color-mix(in srgb,var(--c) 25%,white);border-radius:10px;padding:10px 12px;text-align:left;cursor:pointer;font:inherit;font-weight:600;color:#1D3557;font-size:13px;display:flex;justify-content:space-between;align-items:center}
.speed-item:hover{border-color:var(--c)}
.speed-t{color:var(--c);font-weight:800;font-size:12px}
/* rewards */
.rewards-balance{background:#1D3557;border-radius:16px;padding:28px;text-align:center;margin-bottom:16px;color:#fff}
.rb-medal{font-size:40px}.rb-pts{font-size:44px;font-weight:800;color:#FFB703}.rb-label{color:#8ECAE6;font-weight:700}
.grade-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
@media(max-width:560px){.grade-grid{grid-template-columns:repeat(2,1fr)}}
.grade{border:1px solid color-mix(in srgb,var(--c) 30%,white);background:color-mix(in srgb,var(--c) 6%,white);border-radius:12px;padding:14px;text-align:center}
.grade-g{font-size:24px;font-weight:800;color:var(--c)}.grade-r{font-weight:700;color:#1D3557;font-size:13px}.grade-d{font-size:12px;color:#8d9cb4}
.earn-list{display:grid;gap:10px;margin-top:12px}
.earn-row{display:flex;align-items:center;gap:12px;background:#fffbeb;border-radius:10px;padding:12px 14px}
.earn-ic{width:34px;height:34px;border-radius:8px;display:grid;place-items:center;font-size:16px;flex:none}
.earn-pts{margin-left:auto;font-weight:800;white-space:nowrap}
/* speed grades */
.sg-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;margin-bottom:16px}
.sg-topic{background:#fff;border:2px solid #eef0f4;border-bottom-width:4px;border-radius:14px;padding:16px;text-align:left;cursor:pointer;transition:transform .06s}
.sg-topic:hover{border-color:#FFB703} .sg-topic:active{transform:translateY(2px)}
.sg-name{font-weight:800;color:#1D3557;font-size:15px}.sg-meta{font-size:12px;color:#8d9cb4;margin:4px 0 8px}
.sg-hud{display:flex;justify-content:space-between;width:100%;max-width:320px;font-weight:700;color:#1D3557;margin-bottom:12px}
.sg-clock{color:#FB8500;font-variant-numeric:tabular-nums}
.sg-result{text-align:center;background:color-mix(in srgb,var(--c) 10%,white);border:2px solid var(--c);border-radius:16px;padding:20px 32px}
.sg-grade{font-size:56px;font-weight:800;color:var(--c);line-height:1}.sg-glabel{font-weight:700;color:var(--c)}
/* flash controls + fixed label spacing (no overlap) */
.flash-q-label{font-size:14px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:#FB8500;margin-bottom:16px;text-align:center}
.flash-ctrl{display:flex;gap:12px;align-items:center;justify-content:center;margin-top:20px;flex-wrap:wrap}
.fc-btn{background:#fff;border:2px solid var(--learn-line,#e5e5e5);border-radius:10px;padding:8px 16px;font:inherit;font-weight:700;color:#1D3557;cursor:pointer}
.fc-btn:hover{border-color:#FFB703}
.fc-speed{font-size:13px;font-weight:700;color:var(--learn-ink-2,#777);display:flex;align-items:center;gap:6px}
.fc-speed select{padding:6px 10px;border:1px solid #dde4ee;border-radius:8px;font:inherit;font-weight:700}
/* bonus GK round */
.gk-opts{display:grid;gap:10px;margin:8px 0}
.gk-opt{background:#fff;border:2px solid var(--learn-line,#e5e5e5);border-bottom-width:4px;border-radius:12px;padding:14px;font:inherit;font-weight:700;color:#1D3557;cursor:pointer;font-size:15px}
.gk-opt:hover:not(:disabled){border-color:#FFB703}
.gk-opt:disabled{cursor:default}
.gk-opt.gk-right{background:#eefaf2;border-color:#159a56;color:#0f7b44}
.gk-opt.gk-wrong{background:#fef2f2;border-color:#e2474b;color:#b3402f}
.prog-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.q-timer{font-weight:800;color:#FB8500;font-variant-numeric:tabular-nums;font-size:14px}
.practice-card input:disabled{background:#f4f6f9;color:#8d9cb4}
/* grade thresholds legend */
.grade-legend{background:#fff;border:1px solid #eef0f4;border-radius:12px;padding:10px 14px;margin-bottom:14px;font-size:12px;font-weight:600;color:#8d9cb4;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.grade-chip{background:color-mix(in srgb,var(--c) 12%,white);color:var(--c);border-radius:8px;padding:3px 9px;font-weight:700;font-size:12px}
.grade-chip b{font-weight:800}
.type-target{font-size:56px;font-weight:800;color:#1D3557;margin:16px 0}
/* on-screen keypad (video style) */
.keypad{max-width:280px;margin:14px auto 0}
.kp-row{display:flex;gap:8px;margin-bottom:8px;justify-content:center}
.kp-key{flex:1;height:52px;border:0;border-radius:12px;font-size:20px;font-weight:800;cursor:pointer;box-shadow:0 3px 0 rgba(0,0,0,.12)}
.kp-key:active{transform:translateY(2px);box-shadow:0 1px 0 rgba(0,0,0,.12)}
.kp-num{background:linear-gradient(160deg,#ffd98a,#FFB703);color:#1D3557}
.kp-act{background:#1D3557;color:#fff}
.kp-next{background:#159a56;color:#fff;flex:1}
/* detailed results table (video style) */
.result-table{width:100%;border-collapse:collapse;margin-top:16px;font-size:13px;background:#fff;border-radius:12px;overflow:hidden}
.result-table th{background:#f4f6f9;color:#5f7086;padding:8px;text-align:left;font-size:12px}
.result-table td{padding:8px;border-top:1px solid #eef0f4;color:#1D3557}
.result-table .tr-wrong{color:#e2474b;font-weight:700}
/* the practice question — big and bold (was tiny) */
.expr{font-size:52px;font-weight:800;color:#1D3557;text-align:center;margin:8px 0 18px;letter-spacing:1px;line-height:1.1}
@media(max-width:520px){.expr{font-size:42px}}
/* PracticeField / BattleField mode picker */
.mode-pick{background:#fff;border:2px solid var(--c);border-bottom-width:5px;border-radius:14px;padding:18px;text-align:left;cursor:pointer;transition:transform .06s;display:flex;flex-direction:column;gap:4px}
.mode-pick:active{transform:translateY(3px);border-bottom-width:2px}
.mode-pick b{font-size:17px;color:var(--c)}
.mode-pick span{font-size:13px;color:#5f7086}
/* runner card: buttons full-width, input centered — tidy centered layout */
.next-card > .btn-l[style*="width:100%"], .next-card .btn-l{align-self:stretch}
.next-card .ans-l{align-self:center}
/* classwork syllabus tree */
.cw-level{background:#fff;border:1px solid #eef0f4;border-radius:12px;margin-bottom:10px;overflow:hidden}
.cw-level-head{width:100%;text-align:left;background:#eef2fb;border:0;padding:14px 16px;font-weight:800;color:#1D3557;font-size:15px;cursor:pointer;display:flex;align-items:center;gap:8px}
.cw-chev{margin-left:auto;color:#8d9cb4}
.cw-topics{padding:8px 12px}
.cw-topic{padding:10px 8px;border-top:1px solid #f0f2f5}
.cw-topic.locked{opacity:.55}
.cw-topic-name{font-weight:700;color:#1D3557;font-size:14px;margin-bottom:6px}
.cw-tick{color:#159a56}
.cw-lock{font-size:12px;color:#8d9cb4}
.cw-fields{display:flex;gap:8px;flex-wrap:wrap}
.cw-field{border:0;border-radius:8px;padding:8px 14px;font-weight:700;font-size:13px;cursor:pointer;color:#fff}
.cw-field.practice{background:#159a56}.cw-field.battle{background:#e2474b}
.cw-field b{background:#fff;border-radius:6px;padding:1px 6px;margin-left:4px}
/* grouped sidebar sections */
.lnav-group{font-size:10px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#8ECAE6;padding:12px 10px 4px;margin-top:4px}
.lnav-group:first-child{margin-top:0}
.cw-level-head.lvl-locked{opacity:.7;background:#f4f6f9}
.lvl-set{padding:5px 8px;border:1px solid #dde4ee;border-radius:6px;font:inherit;font-size:12px;transition:border-color .2s}
/* practice mode toggle (Practice / Speed Challenge) */
.mode-toggle{display:inline-flex;background:#eef0f4;border-radius:12px;padding:4px;gap:4px;margin-bottom:14px}
.mt-btn{border:0;background:none;border-radius:9px;padding:9px 18px;font:inherit;font-weight:700;font-size:14px;color:#5f7086;cursor:pointer;transition:all .12s}
.mt-btn.on{background:#fff;color:#1D3557;box-shadow:0 1px 3px rgba(0,0,0,.1)}
.mt-btn.on[data-m="battle"]{color:#e2474b}
.pt-btn{border:0;background:none;border-radius:9px;padding:9px 16px;font:inherit;font-weight:700;font-size:14px;color:#5f7086;cursor:pointer;transition:all .12s}
.pt-btn.on{background:#fff;color:#1D3557;box-shadow:0 1px 3px rgba(0,0,0,.1)}
/* My Course — the curriculum ladder */
.course-overall{background:#1D3557;border-radius:16px;padding:18px 20px;margin-bottom:18px;color:#fff}
.co-top{display:flex;justify-content:space-between;font-weight:700;margin-bottom:10px}
.co-top b{color:#FFB703}.co-top span{color:#8ECAE6}
.co-bar{height:12px;background:rgba(255,255,255,.15);border-radius:99px;overflow:hidden}
.co-bar span{display:block;height:100%;background:linear-gradient(90deg,#8ae7b0,#159a56);border-radius:99px;transition:width .5s}
.course-ladder{display:flex;flex-direction:column;gap:10px}
.course-level{background:#fff;border:1px solid #eef0f4;border-radius:14px;overflow:hidden}
.course-level.done{border-color:#b8e6cd}.course-level.current{border-color:#FFB703;border-width:2px}
.course-level.locked{opacity:.65}
.cl-head{width:100%;text-align:left;background:none;border:0;padding:16px 18px;display:flex;align-items:center;gap:12px;cursor:pointer;font-weight:800;color:#1D3557;font-size:15px}
.cl-icon{font-size:18px}.cl-name{flex:0 1 auto}
.cl-chev{margin-left:8px;color:#8d9cb4}
.lv-badge{margin-left:auto;font-size:12px;font-weight:700;border-radius:99px;padding:4px 12px}
.lv-badge.done{background:#eefaf2;color:#159a56}.lv-badge.cur{background:#fff3d6;color:#e69500}.lv-badge.lock{background:#f4f6f9;color:#8d9cb4}
.cl-topics{padding:6px 16px 14px;border-top:1px solid #f4f6f9}
.cl-locked-msg{color:#8d9cb4;font-size:13px;padding:10px 0;text-align:center}
.cl-topic{display:flex;align-items:center;gap:10px;padding:10px 6px;border-top:1px solid #f7f8fb}
.cl-topic.locked{opacity:.5}
.ct-icon{font-size:15px}.ct-name{font-size:14px;color:#1D3557;font-weight:600}
.ct-check{margin-left:auto;color:#159a56;font-weight:700;font-size:13px}
.ct-lock{margin-left:auto;color:#8d9cb4}
.teacher-note{background:#fffbeb;border:1px solid #ffe8b0;border-left:4px solid #FFB703;border-radius:0 12px 12px 0;padding:12px 16px;margin-bottom:16px;font-size:14px;color:#8a6d1f}
.teacher-note b{color:#1D3557}
.cert-list{display:grid;gap:16px}
.cert-item{display:flex;gap:16px;align-items:center;background:#fff;border:1px solid #eef0f4;border-radius:14px;padding:16px;flex-wrap:wrap}
.cert-thumb{width:200px;flex:none}.cert-thumb svg{width:100%;height:auto;border:1px solid #eef0f4;border-radius:8px}
.cert-info{flex:1;min-width:180px}
.plevel{display:flex;align-items:center;gap:10px;padding:6px 0}
.plevel-name{flex:0 0 200px;font-size:13px;color:#1D3557;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.plevel-bar{flex:1;height:8px;background:#eef0f4;border-radius:99px;overflow:hidden}
.plevel-bar span{display:block;height:100%;border-radius:99px}
.plevel-pct{flex:0 0 32px;text-align:right;font-size:12px;color:#8d9cb4;font-weight:700}
@media(max-width:520px){.plevel-name{flex-basis:120px}}
.belt-current{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid #eef0f4;border-radius:14px;padding:16px;margin-bottom:16px}
.belt-chip.lg{width:44px;height:44px;border-radius:10px;flex:none}
.plevel .prog,.tcard .prog{height:10px;background:#eef0f4;border-radius:99px;overflow:hidden}
.tcard .prog span{display:block;height:100%;background:linear-gradient(90deg,#8ae7b0,#159a56);border-radius:99px}

/* ===== MOBILE NAV (was: sidebar hidden with no replacement — students stuck) ===== */
.lnav-toggle{display:none}
@media(max-width:820px){
  .lshell{grid-template-columns:1fr}
  .lside{display:flex!important;position:fixed;top:0;left:0;bottom:0;width:260px;max-width:80vw;z-index:1500;
    transform:translateX(-100%);transition:transform .25s;box-shadow:2px 0 20px rgba(0,0,0,.3);
    overflow-y:auto;pointer-events:none}
  .lshell.nav-open .lside{transform:translateX(0);pointer-events:auto}
  .lnav-toggle{display:flex!important;position:fixed;top:10px;left:10px;z-index:2000;background:#1D3557;color:#fff;
    border:0;border-radius:10px;width:48px;height:48px;align-items:center;justify-content:center;font-size:24px;cursor:pointer;box-shadow:0 2px 10px rgba(0,0,0,.25)}
  .lshell.nav-open .lnav-toggle{left:270px;background:#FFB703;color:#1D3557}
  .lmain,.content-page{padding-top:60px}
  .lshell.nav-open::after{content:"";position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:999}
}
@media print{ .lside,.lnav-toggle,.no-print,.learn-top{display:none!important} .lshell{grid-template-columns:1fr} }
/* flash: stable layout (number area fixed height, controls pinned below) */
.flash-card{padding:24px;display:flex;flex-direction:column;align-items:center;min-height:360px}
.flash-stage{height:200px;display:flex;align-items:center;justify-content:center;width:100%}
.flash-card .flash-num{font-size:88px}
.flash-card .flash-ctrl{margin-top:auto;padding-top:16px;border-top:1px solid #eef0f4;width:100%}
.va-showval{font-size:13px;color:#5f7086;display:flex;align-items:center;gap:6px}
.cl-section{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:1px;color:#8d9cb4;margin:12px 0 4px;padding-left:4px}
.trial-banner{background:#fff3d6;border:1px solid #ffe0a0;border-radius:10px;padding:10px 14px;margin-bottom:14px;font-size:13.5px;color:#8a5a00}
.trial-banner a{color:#c47d1a;font-weight:700}
.banner-cta{background:#FFB703;color:#1D3557!important;padding:3px 12px;border-radius:8px;font-weight:800;text-decoration:none;margin-left:6px}
.ct-partial{margin-left:auto;color:#FB8500;font-weight:700;font-size:12px}

/* sidebar: sticky + independently scrollable so it never stretches the page */
@media(min-width:821px){
  .lside{position:sticky;top:0;height:100vh;overflow-y:auto}
  .lside::-webkit-scrollbar{width:6px}
  .lside::-webkit-scrollbar-thumb{background:rgba(255,255,255,.2);border-radius:3px}
  /* collapse toggle */
  .lshell.collapsed{grid-template-columns:64px 1fr}
  .lshell.collapsed .lnav-i span,.lshell.collapsed .lnav-group,.lshell.collapsed .lbrand-text{display:none}
  .lshell.collapsed .lnav-i{justify-content:center}
}
.lcollapse{background:none;border:0;color:#8ea3c4;cursor:pointer;font-size:18px;padding:6px;align-self:flex-end}
@media(max-width:820px){.lcollapse{display:none}}
.lcollapse:hover{color:#fff}
.lesson-demo{margin-top:10px}
.demo-card{background:#f4f6f9;border:1px solid #e6eaf0;border-radius:14px;padding:16px;text-align:center}
.demo-say{color:#1D3557;font-weight:600;font-size:14px;margin:8px 0;line-height:1.5}
.fb-emoji{display:flex;justify-content:space-between;gap:6px;margin:12px 0}
.fb-e{flex:1;background:#f4f6f9;border:2px solid transparent;border-radius:12px;padding:10px 4px;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:2px}
.fb-e.sel{border-color:#FFB703;background:#fff8e6}
.guide-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}
.guide-card{background:#fff;border:1px solid #e6eaf0;border-radius:14px;padding:16px}
.guide-ic{font-size:30px;margin-bottom:6px}
.guide-card h3{margin:0 0 6px;font-size:15px;color:#1D3557}
.guide-card p{margin:0;font-size:13.5px;color:#5f7086;line-height:1.55}
/* Worksheet branding header (all sheets) */
.ws-brand{display:flex;flex-direction:column;align-items:center;padding-bottom:10px;margin-bottom:10px;border-bottom:2px solid #1D3557}
.ws-brand-name{font-size:22px;font-weight:800;color:#1D3557;letter-spacing:-.3px}
.ws-brand-tag{font-size:12px;color:#8d9cb4;font-style:italic}
.ws-instr{font-size:13px;color:#5f7086;margin:6px 0 12px}
/* Change into Beads grid: abacus per number */
.ws-bead-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px}
.ws-bead-cell{border:1px solid #e6eaf0;border-radius:10px;padding:10px;text-align:center}
.ws-bead-cell .ws-n{font-weight:800;color:#1D3557;display:block;margin-bottom:4px;text-align:left}
.ws-answer{margin-top:8px;font-weight:700;color:#5f7086}
@media print{ .ws-brand{border-color:#000} .ws-bead-cell{border-color:#999;break-inside:avoid} }
/* Holistic guide hero (methodology) */
.guide-hero{background:linear-gradient(135deg,#1D3557,#274472);color:#fff;border-radius:18px;padding:24px 22px;margin-bottom:20px}
.guide-hero h1{margin:0 0 10px;font-size:26px;color:#fff}
.guide-what{font-size:15px;line-height:1.6;color:#e8eef7;margin:0 0 10px}
.guide-why{font-size:14px;line-height:1.6;color:#b9c7dc;margin:0 0 18px}
.guide-journey{display:flex;align-items:stretch;gap:8px;flex-wrap:wrap;margin:16px 0}
.gj-step{flex:1;min-width:150px;background:rgba(255,255,255,.08);border-radius:12px;padding:14px;text-align:center}
.gj-num{width:24px;height:24px;border-radius:50%;background:#FFB703;color:#1D3557;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 6px;font-size:13px}
.gj-ic{font-size:30px}
.gj-step h4{margin:6px 0 4px;font-size:15px;color:#FFB703}
.gj-step p{margin:0;font-size:12.5px;line-height:1.5;color:#d7e0ee}
.gj-arrow{display:flex;align-items:center;color:#FFB703;font-size:22px;font-weight:800}
.guide-principles{background:rgba(255,255,255,.06);border-radius:12px;padding:14px 16px;margin-top:14px}
.guide-principles b{color:#FFB703}
.guide-principles ul{margin:8px 0 0;padding-left:18px;line-height:1.7;font-size:13.5px;color:#e0e7f2}
.guide-section-h{font-size:16px;font-weight:800;color:#1D3557;margin:20px 0 10px}
@media(max-width:600px){.gj-arrow{display:none}.guide-journey{flex-direction:column}}

/* ===== Guided kid dashboard ===== */
.kid-greet h1{margin:0;font-size:28px}.kid-greet h1 span{color:#FFB703}
.kid-greet p{margin:4px 0 0;color:#cfe0f5;font-size:14px}.kb-v{font-size:20px;font-weight:800;color:#FFB703}.kb-l{font-size:11px;color:#cfe0f5}
.kid-continue:hover{transform:translateY(-2px)}
.kid-tiles-wide{grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}

.kid-tile:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(29,53,87,.1)}
.kt-d{font-size:12px;color:#5f7086;margin-top:4px;line-height:1.4}
@media(max-width:640px){}
/* Playful kid-friendly hub tiles */
/* Vibrant hub tiles */
.hub-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:16px}
.hub-tile{--tc:#FB8500;position:relative;overflow:hidden;display:flex;flex-direction:column;align-items:center;text-align:center;
  background:#fff;border:1px solid #eef1f6;border-radius:20px;padding:22px 14px 18px;text-decoration:none;
  transition:transform .18s cubic-bezier(.34,1.56,.64,1),box-shadow .18s;box-shadow:0 2px 8px rgba(29,53,87,.05)}
.hub-tile::before{content:"";position:absolute;top:0;left:0;right:0;height:6px;background:var(--tc)}
.hub-tile .hub-ic{width:64px;height:64px;display:flex;align-items:center;justify-content:center;font-size:34px;border-radius:18px;margin-bottom:10px;
  background:color-mix(in srgb,var(--tc) 14%,#fff);transition:transform .2s}
.hub-tile:hover{transform:translateY(-5px);box-shadow:0 14px 30px color-mix(in srgb,var(--tc) 26%,transparent)}
.hub-tile:hover .hub-ic,.hub-tile:active .hub-ic{transform:scale(1.12) rotate(-5deg)}
.hub-tile h3{margin:0 0 4px;font-size:16px;font-weight:800;color:var(--tc)}
.hub-tile p{margin:0;font-size:12.5px;color:#5f7086;line-height:1.45}
/* Vibrant kid dashboard polish */
.kid-hero{background:linear-gradient(135deg,#1D3557 0%,#2f74e0 100%);border-radius:22px;padding:22px 24px;color:#fff;margin-bottom:18px;box-shadow:0 10px 30px rgba(47,116,224,.25)}
.kid-greet h1{font-size:28px;margin:0}
.kid-greet h1 span{color:#FFB703}
.kid-greet p{color:#d7e3f5;margin:4px 0 0}
.kid-badges{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.kb{background:rgba(255,255,255,.14);border-radius:14px;padding:10px 16px;text-align:center;min-width:80px}
.kb-ic{font-size:22px}
.kb-v{font-size:22px;font-weight:800;color:#FFB703}
.kb-l{font-size:11px;color:#cdd9ec;text-transform:uppercase;letter-spacing:.5px}
.kid-continue{display:flex;align-items:center;justify-content:space-between;background:linear-gradient(135deg,#FFB703,#FB8500);color:#1D3557;border-radius:20px;padding:20px 24px;text-decoration:none;margin-bottom:20px;box-shadow:0 8px 24px rgba(251,133,0,.3);transition:transform .15s}
.kid-continue:hover{transform:translateY(-3px) scale(1.01)}
.kc-eyebrow{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:1px;opacity:.7}
.kc-title{font-size:22px;font-weight:800;margin:2px 0}
.kc-sub{font-size:13px;opacity:.8}
.kc-play{width:52px;height:52px;border-radius:50%;background:#1D3557;color:#FFB703;display:flex;align-items:center;justify-content:center;font-size:24px}
.kid-section{font-size:15px;font-weight:800;color:#1D3557;margin:18px 0 10px}
.kid-tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:12px}
.kid-tile{--t:#FB8500;display:flex;flex-direction:column;align-items:center;gap:6px;background:#fff;border:1px solid #eef0f4;border-top:4px solid var(--t);border-radius:16px;padding:16px 8px;text-decoration:none;transition:transform .15s,box-shadow .15s}
.kid-tile:hover{transform:translateY(-3px);box-shadow:0 8px 22px color-mix(in srgb,var(--t) 20%,transparent)}
.kt-ic{font-size:34px}
.kt-l{font-size:13px;font-weight:700;color:#1D3557;text-align:center}
.class-howto-d{margin:8px 0 12px}
.class-howto-d summary{cursor:pointer;font-weight:700;color:#2f74e0;font-size:13px;list-style:none;padding:6px 0}
.class-howto-d summary::-webkit-details-marker{display:none}
.class-howto{background:#eef2fb;border-radius:10px;padding:12px 14px;font-size:13px;color:#334;line-height:1.5;margin-top:6px}
.class-howto a{color:#2f74e0;font-weight:700}
.lesson-text{background:#f4f6f9;border-radius:12px;padding:14px 16px;margin-top:10px;font-size:14px;line-height:1.6;color:#1D3557}
.lesson-text b{color:#FB8500}
.abacus-faq{display:flex;flex-direction:column;gap:8px}
.faq-item{background:#fff;border:1px solid #e6eaf0;border-radius:12px;padding:12px 14px}
.faq-item summary{cursor:pointer;font-weight:700;color:#1D3557;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:"▸ ";color:#FB8500}
.faq-item[open] summary::before{content:"▾ "}
.faq-item p{margin:8px 0 0;font-size:13.5px;color:#5f7086;line-height:1.6}