/* ===========================================================================
   IberMath · sistema visual
   Claro y oscuro, tarjetas suaves, acentos por grado, elementos de juego.
   =========================================================================== */
/* Paleta IberMath: Terra Cotta #ED6A5A · Pale Spring Bud #F4F1BB · Opal #9BC1BC · Alabaster #E6EBE0 · Robin Egg Blue #36C9C6 */
:root{
  --bg:#E6EBE0; --card:#fbfcf9; --ink:#17302f; --muted:#4f6e6c; --line:#cdd8c9; --soft:#f0f4ea;
  --brand:#36C9C6; --brand2:#2bb6b3; --brand-dark:#1f9d9a; --brand-soft:#d8f3f1; --brand-ink:#0f716e; --on-brand:#0b2c2b;
  --accent:#ED6A5A; --accent-ink:#d8483a; --gold:#f2b632; --bud:#F4F1BB; --opal:#9BC1BC;
  --ok:#0f7f55; --ok-soft:#dcf3e6; --bad:#b8372d; --bad-soft:#fbe6e2; --warn:#6b5d05; --warn-soft:#F4F1BB; --info:#0f6a73; --info-soft:#d8f0f0;
  --radius:20px; --shadow:0 12px 30px rgba(23,48,47,.09); --shadow-sm:0 2px 10px rgba(23,48,47,.08);
  --g:#36C9C6; --glass:rgba(230,235,224,.82); --input:#fff; --input-line:#b4c6c0; --fig:#fff;
  --font:"Switzer","Avenir Next","Segoe UI",system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
}
:root[data-theme="dark"]{
  --bg:#0f2524; --card:#173534; --ink:#e6ebe0; --muted:#9BC1BC; --line:#2a4d4b; --soft:#1d4140;
  --brand:#36C9C6; --brand2:#2bb6b3; --brand-dark:#4fd9d6; --brand-soft:#1c4a49; --brand-ink:#6fe3e0; --on-brand:#0b2c2b;
  --accent:#f27d6e; --accent-ink:#ff9a8c; --warn:#F4F1BB; --warn-soft:#3b3a1d; --ok:#5fdca2; --ok-soft:#17402f; --bad:#ff9a8f; --bad-soft:#44221f; --info:#8fe3e6; --info-soft:#17414a;
  --shadow:0 12px 30px rgba(0,0,0,.35); --shadow-sm:0 2px 10px rgba(0,0,0,.3); --glass:rgba(15,37,36,.82); --input:#112b2a; --input-line:#3f6764; --fig:#fff;
}
body[data-grade="1"]{--g:#36C9C6}body[data-grade="2"]{--g:#ED6A5A}body[data-grade="3"]{--g:#9BC1BC}
body[data-grade="4"]{--g:#E9D86A}body[data-grade="5"]{--g:#f59e92}body[data-grade="6"]{--g:#6fd6a6}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;color:var(--ink);font:17px/1.55 var(--font);font-feature-settings:'ss01','tnum' 0;min-height:100vh;
  background:radial-gradient(1100px 520px at 88% -8%,rgba(54,201,198,.22),transparent 60%),radial-gradient(900px 520px at -8% 6%,rgba(237,106,90,.13),transparent 55%),var(--bg);background-attachment:fixed}
body::before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.5;z-index:0;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='260' height='260'><g fill='none' stroke='%2336C9C6' stroke-opacity='.12' stroke-width='2' font-family='Georgia,serif' font-size='34'><text x='20' y='60' fill='%2336C9C6' fill-opacity='.10' stroke='none'>π</text><text x='150' y='110' fill='%23ED6A5A' fill-opacity='.10' stroke='none'>∑</text><text x='60' y='200' fill='%239BC1BC' fill-opacity='.10' stroke='none'>√</text><text x='190' y='235' fill='%23ED6A5A' fill-opacity='.12' stroke='none'>∞</text></g></svg>")}
#app,.top,#toasts{position:relative;z-index:1}
h1{font-size:1.85rem;line-height:1.12;margin:.2rem 0 .6rem;font-weight:700;letter-spacing:-.025em}
h2{font-size:1.35rem;line-height:1.22;margin:0 0 .5rem;font-weight:700;letter-spacing:-.015em}
h3{font-size:1.08rem;margin:1.1rem 0 .35rem;font-weight:700;letter-spacing:-.01em}
p{margin:.4rem 0 .8rem}
.wrap{max-width:920px;margin:0 auto;padding:0 16px}
.wrap.wide{max-width:1080px}
main.wrap{padding-top:20px;padding-bottom:70px}
.grad{background:linear-gradient(90deg,var(--brand-ink),var(--accent-ink));-webkit-background-clip:text;background-clip:text;color:transparent}
/* cabecera */
.top{background:var(--glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.hbar{display:flex;align-items:center;justify-content:space-between;min-height:58px;gap:10px}
.brand{display:flex;align-items:center;gap:10px;background:none;border:0;font:inherit;font-weight:700;color:var(--ink);cursor:pointer;padding:6px 0}
.logomark{width:38px;height:38px;flex:none;filter:drop-shadow(0 4px 10px rgba(54,201,198,.35))}
.wm{font-size:1.28rem;font-weight:700;letter-spacing:-.03em;color:var(--ink);line-height:1}
.wm i{font-style:normal;color:var(--accent-ink)}
.hright{display:flex;align-items:center;gap:8px}
.xpchip{white-space:nowrap;font-size:.85rem;font-weight:700;background:var(--brand-soft);color:var(--brand-ink);border-radius:99px;padding:5px 11px;border:0;cursor:pointer;font-family:inherit}
.iconbtn{width:38px;height:38px;border-radius:12px;border:1px solid var(--line);background:var(--card);cursor:pointer;font-size:1.05rem;display:grid;place-items:center;color:var(--ink)}
.iconbtn:hover{border-color:var(--brand)}
.link{background:none;border:0;font:inherit;font-size:.95rem;color:var(--brand-ink);cursor:pointer;padding:8px 4px;font-weight:700}
.link:hover{text-decoration:underline}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-bottom:18px;box-shadow:var(--shadow)}
#app.enter .card{animation:rise .35s ease both}
.muted{color:var(--muted)}
.small{font-size:.9rem}
label{display:block;font-weight:700;margin:.9rem 0 .3rem}
input[type=text],input[type=number],input[type=search],select{width:100%;font:inherit;padding:12px 14px;border:2px solid var(--input-line);border-radius:14px;background:var(--input);color:var(--ink);transition:border-color .15s,box-shadow .15s}
input:focus,select:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(54,201,198,.28);outline:none}
button:focus-visible,a:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
/* botones */
.btn{font:inherit;font-weight:700;border:2px solid var(--brand);color:var(--brand-ink);background:var(--card);padding:11px 20px;border-radius:14px;cursor:pointer;min-height:46px;transition:transform .12s,box-shadow .15s,background .15s}
.btn:hover{background:var(--brand-soft);transform:translateY(-1px)}
.btn:active{transform:translateY(1px) scale(.99)}
.btn.primary{border-color:transparent;color:var(--on-brand);background:linear-gradient(135deg,var(--brand),var(--brand2));box-shadow:0 6px 16px rgba(54,201,198,.4)}
.btn.primary:hover{box-shadow:0 10px 22px rgba(54,201,198,.5);background:linear-gradient(135deg,#4fd9d6,var(--brand))}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn.small{padding:7px 13px;min-height:38px;font-size:.95rem}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:14px}
.row.end{justify-content:space-between}
/* progreso */
.progress{height:10px;background:var(--line);border-radius:99px;overflow:hidden;margin:8px 0 16px}
.progress>i{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--accent));border-radius:99px;transition:width .35s}
/* opciones */
.opts{display:grid;gap:10px;margin-top:12px}
.opt{display:flex;gap:12px;align-items:flex-start;text-align:left;width:100%;font:inherit;background:var(--card);border:2px solid var(--line);border-radius:16px;padding:14px 16px;cursor:pointer;color:var(--ink);transition:transform .12s,border-color .15s,box-shadow .15s,background .15s}
.opt:hover{border-color:var(--brand2);transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.opt .mark{flex:none;width:24px;height:24px;border-radius:50%;border:2px solid var(--input-line);margin-top:2px;display:grid;place-items:center;font-size:.8rem;color:#fff}
.opt.multi .mark{border-radius:7px}
.opt.on{border-color:var(--brand);background:var(--brand-soft)}
.opt.on .mark{background:var(--brand);border-color:var(--brand);color:var(--on-brand);font-weight:800}
.opt b{display:block}
.opt span.d{display:block;color:var(--muted);font-size:.93rem}
.opt.right{border-color:var(--ok);background:var(--ok-soft);animation:pop .4s}
.opt.wrong{border-color:#e0a39d;background:var(--bad-soft);opacity:.72}
.opt[disabled]{cursor:default;transform:none}
/* bienvenida */
.hero{position:relative;overflow:hidden;border:0;color:#0b2c2b;background:linear-gradient(125deg,#36C9C6 0%,#8fdcd3 52%,#F4F1BB 105%);padding:30px 26px}
.hero h1{color:#0b2c2b;font-size:2.15rem}
.hero p{color:#12403f;font-size:1.05rem}
.herologo{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.herologo .logomark{background:#fff;border-radius:16px;padding:3px;box-sizing:content-box}
.hero .wm{color:#0b2c2b}.hero .wm i{color:#c7382a}
.hero .mascot{position:absolute;right:10px;bottom:-6px;opacity:.97}
.hero .txt{max-width:62%}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 4px}
.chip{display:inline-flex;gap:6px;align-items:center;background:rgba(255,255,255,.55);border:1px solid rgba(11,44,43,.15);color:#0b2c2b;border-radius:99px;padding:5px 12px;font-size:.88rem;font-weight:600}
.chip-btn{font:inherit;font-size:.92rem;background:var(--card);border:2px solid var(--line);border-radius:99px;padding:5px 12px;cursor:pointer;margin:0 6px 6px 0;color:var(--ink)}
.chip-btn.on{border-color:var(--brand);background:var(--brand-soft);font-weight:700}
@media(max-width:560px){.hero .txt{max-width:100%}.hero .mascot{position:static;display:block;margin:6px auto -10px}}
/* estadísticas y juego */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin:12px 0 6px}
.stat{display:flex;gap:12px;align-items:center;background:var(--soft);border:1px solid var(--line);border-radius:18px;padding:12px 14px;text-align:left;font:inherit;color:var(--ink);cursor:default}
button.stat{cursor:pointer}button.stat:hover{border-color:var(--brand)}
.stat .ic{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;font-size:1.5rem;background:var(--brand-soft);flex:none}
.stat b{display:block;font-size:1.15rem;line-height:1.1}
.stat span{color:var(--muted);font-size:.84rem}
.xpbar{height:8px;border-radius:99px;background:var(--line);overflow:hidden;margin-top:5px}
.xpbar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--brand),var(--accent))}
.cont{display:flex;gap:14px;align-items:center;justify-content:space-between;flex-wrap:wrap;background:linear-gradient(135deg,var(--brand-soft),var(--bud));border:1px solid var(--line);border-radius:18px;padding:14px 16px;margin:14px 0}
.cont b{display:block}
.searchrow{margin:14px 0 4px}
/* temas */
.topics{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(340px,1fr))}
.topic{display:flex;gap:14px;align-items:center;border:1px solid var(--line);border-radius:18px;padding:14px;background:var(--card);transition:transform .15s,box-shadow .15s,border-color .15s;position:relative;overflow:hidden}
.topic::before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:var(--g)}
.topic:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--g)}
.topic.soon{opacity:.55}
.ticon{flex:none;width:52px;height:52px;border-radius:16px;display:grid;place-items:center;font-size:1.65rem;background:color-mix(in srgb,var(--g) 16%,transparent)}
.tbody{flex:1;min-width:0}
.tbody b{display:block;line-height:1.25}
.tbody .cur{color:var(--muted);font-size:.84rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-top:2px}
.stars{letter-spacing:2px;font-size:1rem;color:var(--line);white-space:nowrap}
.stars .on{color:var(--gold);text-shadow:0 1px 4px rgba(255,183,3,.5)}
.tcta{flex:none}
.pill{display:inline-block;font-size:.76rem;font-weight:700;padding:2px 9px;border-radius:99px;background:var(--brand-soft);color:var(--brand-ink)}
.pill.gray{background:var(--soft);color:var(--muted);border:1px solid var(--line)}
.bhead{display:flex;align-items:center;justify-content:space-between;margin:22px 0 10px}
.bhead h3{margin:0}
.bcount{font-size:.82rem;color:var(--muted);font-weight:700}
/* pestañas */
.tabs{display:flex;gap:8px;overflow-x:auto;padding:4px 2px 8px;margin-bottom:8px}
.tab{flex:none;font:inherit;font-size:.95rem;font-weight:700;background:var(--card);border:2px solid var(--line);border-radius:14px;padding:8px 14px;cursor:pointer;color:var(--ink);min-height:44px;transition:all .15s}
.tab small{display:block;font-size:.72rem;color:var(--brand-ink);font-weight:700;line-height:1}
.tab:hover{border-color:var(--g)}
.tab.on{border-color:var(--g);background:var(--g);color:#0b2c2b;box-shadow:0 6px 14px color-mix(in srgb,var(--g) 45%,transparent)}
.tab.on small{color:#0b2c2b}
.tab .cnt{display:block;font-size:.72rem;opacity:.85;font-weight:700}
/* pasos */
.stepper{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}
.stepper span{font-size:.85rem;font-weight:700;padding:4px 12px;border-radius:99px;background:var(--soft);color:var(--muted);border:1px solid var(--line)}
.stepper span.on{background:var(--brand);color:var(--on-brand);border-color:var(--brand)}
.stepper span.done{background:var(--ok-soft);color:var(--ok);border-color:transparent}
/* avisos */
.callout{border-radius:16px;padding:13px 16px;margin:12px 0;border:1px solid transparent;animation:rise .3s ease both}
.callout.ok{background:var(--ok-soft);border-color:color-mix(in srgb,var(--ok) 35%,transparent);color:var(--ok)}
.callout.bad{background:var(--bad-soft);border-color:color-mix(in srgb,var(--bad) 35%,transparent);color:var(--bad)}
.callout.hint{background:var(--warn-soft);border-color:color-mix(in srgb,var(--warn) 35%,transparent);color:var(--warn)}
.callout.info{background:var(--info-soft);border-color:color-mix(in srgb,var(--info) 35%,transparent);color:var(--info)}
.callout.gdc{background:#e4f0ee;border-color:#b3d3ce;color:#1c514d}
:root[data-theme="dark"] .callout.gdc{background:#1f4442;border-color:#3b726e;color:#bfeeea}
.callout ol{margin:.3rem 0 0;padding-left:1.2rem}
/* pasos resueltos */
.step{display:flex;gap:12px;margin:10px 0;padding:13px;border:1px solid var(--line);border-radius:16px;background:var(--soft)}
.step .n{flex:none;width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2));color:var(--on-brand);display:grid;place-items:center;font-weight:800;font-size:.9rem}
.step b.t{display:block;font-weight:700}
.problem{background:var(--brand-soft);border-radius:16px;padding:13px 16px;margin:8px 0}
.tbl{border-collapse:collapse;width:100%;margin:10px 0;text-align:center;border-radius:12px;overflow:hidden}
.tbl th,.tbl td{border:1px solid var(--line);padding:7px 9px}
.tbl th{background:var(--soft);text-align:left;font-size:.9rem}
.eqbig{font-size:1.4rem;font-weight:700;color:var(--brand-ink)}
.formula{font-size:1.15rem;background:var(--soft);border-left:5px solid var(--accent);padding:9px 15px;margin:9px 0;border-radius:8px}
/* gráfica interactiva */
.graph-wrap{display:grid;gap:14px}
@media(min-width:640px){.graph-wrap{grid-template-columns:320px 1fr;align-items:start}}
.graph-wrap svg{width:100%;max-width:340px;background:var(--fig);border:1px solid var(--line);border-radius:14px;display:block;margin:0 auto}
.gr{stroke:#e8ebf4;stroke-width:1}.ax{stroke:#7b849b;stroke-width:1.6}
.ln{stroke:var(--brand);stroke-width:3.2;stroke-linecap:round}
.pt{fill:#e5484d;stroke:#fff;stroke-width:1.5}
.tri{stroke:#e08a00;stroke-width:2;stroke-dasharray:4 3}
svg text{font-size:10px;fill:#566079;font-family:system-ui,sans-serif}
svg text.lab{fill:#b02a2f;font-weight:700}
svg text.lab2{fill:#a86400;font-weight:700}
.sliders label{font-weight:700;margin:.7rem 0 .1rem;display:flex;justify-content:space-between}
.sliders input[type=range]{width:100%;accent-color:var(--brand);height:30px}
.sliders .chk{font-weight:400;justify-content:flex-start;gap:8px;align-items:center}
.rate{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:16px;padding-top:12px;border-top:1px dashed var(--line);font-size:.95rem}
.rate.done{color:var(--ok)}
/* práctica */
.qtext{font-size:1.14rem;margin:.6rem 0 1rem}
.ansrow{display:flex;gap:10px;flex-wrap:wrap}
.ansrow input{flex:1;min-width:140px;font-size:1.2rem;font-weight:700}
.lv{display:flex;gap:6px;align-items:center;font-size:.85rem;color:var(--muted);font-weight:700}
.lv i{width:11px;height:11px;border-radius:50%;background:var(--line);display:inline-block}
.lv i.on{background:linear-gradient(135deg,var(--gold),var(--accent))}
.dots{display:flex;gap:6px;flex-wrap:wrap;margin:10px 0 14px}
.dot{flex:1;min-width:16px;height:10px;border-radius:99px;background:var(--line);transition:background .25s,transform .25s}
.dot.cur{background:var(--brand);transform:scaleY(1.35)}
.dot.good{background:#2fbf7f}.dot.ok{background:var(--gold)}.dot.miss{background:#ef6a5e}
.flame{display:inline-flex;gap:4px;align-items:center;background:var(--warn-soft);color:var(--warn);font-weight:800;font-size:.85rem;padding:3px 10px;border-radius:99px;animation:pop .4s}
.card.fx-pop{animation:popcard .5s}
.card.fx-shake{animation:shake .4s}
.bars{display:grid;gap:8px;margin:12px 0}
.bar2{display:flex;justify-content:space-between;gap:10px;padding:9px 13px;border-radius:14px;background:var(--soft);border:1px solid var(--line)}
.bar2.good{background:var(--ok-soft);border-color:#a8dcc0}
.bar2.review{background:var(--warn-soft);border-color:#efd88a}
.big{font-size:2.6rem;font-weight:700;color:var(--brand-ink);line-height:1;letter-spacing:-.03em}
/* resultados */
.reward{text-align:center;padding:8px 0 4px}
.reward .mascot{display:block;margin:0 auto -4px}
.bigstars{font-size:2.6rem;letter-spacing:6px;margin:4px 0;color:var(--line)}
.bigstars .on{color:var(--gold);text-shadow:0 3px 12px rgba(255,183,3,.55);display:inline-block;animation:starin .55s both}
.bigstars span:nth-child(2){animation-delay:.18s}.bigstars span:nth-child(3){animation-delay:.36s}
.xpgain{display:inline-block;font-weight:700;font-size:1.25rem;color:#3a1410;background:linear-gradient(135deg,#f7d56a,var(--accent));border-radius:99px;padding:6px 18px;box-shadow:0 8px 20px rgba(255,122,89,.35)}
.lvup{margin:14px auto;max-width:420px;padding:12px 16px;border-radius:16px;background:var(--brand-soft);font-weight:700;color:var(--brand-ink)}
.newbadges{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin:10px 0}
/* insignias */
.badges{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));margin-top:14px}
.badge{border:1px solid var(--line);border-radius:18px;padding:16px;background:var(--soft);text-align:center}
.badge .bi{font-size:2.2rem;display:block;margin-bottom:4px}
.badge.locked{opacity:.55}.badge.locked .bi{filter:grayscale(1)}
.badge b{display:block}
.badge span{color:var(--muted);font-size:.86rem}
.badge.new{border-color:var(--gold);box-shadow:0 0 0 3px rgba(255,183,3,.25)}
#toasts{position:fixed;top:70px;left:0;right:0;display:grid;gap:8px;justify-items:center;pointer-events:none;z-index:50}
.toast{background:var(--ink);color:var(--bg);padding:10px 18px;border-radius:99px;font-weight:600;box-shadow:var(--shadow);animation:drop .4s both,fade .4s 3.2s forwards}
/* perfil */
.prof{display:grid;gap:8px;margin:10px 0}
.prof div{display:flex;gap:10px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:6px}
.prof b{min-width:190px}
textarea.sum,.code{width:100%;font:13px/1.45 ui-monospace,Menlo,monospace;border:2px solid var(--input-line);border-radius:14px;padding:10px;background:var(--input);color:var(--ink)}
textarea.sum{min-height:170px}
.code{margin:10px 0;word-break:break-all}
.check{display:flex;gap:8px;align-items:center;margin:10px 0}
details{margin:10px 0}
summary{cursor:pointer;font-weight:600;color:var(--brand-ink)}
/* figuras */
.figwrap,.figrow{margin:8px 0 14px}
.figrow{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.fig{width:100%;max-width:420px;background:var(--fig);border:1px solid var(--line);border-radius:14px;display:block;margin:6px auto}
.fig.sq{max-width:320px}
.figrow .fig{max-width:190px;margin:0}
.fig text{font-size:11px;fill:#566079;font-family:system-ui,sans-serif}
.fig text.lab{fill:#b02a2f;font-weight:700}
.bar{fill:#36C9C6}
.tripoly{fill:#d8f3f1;stroke:var(--brand);stroke-width:2.4}
/* mascota */
.mascot{display:inline-block;filter:drop-shadow(0 8px 14px rgba(15,70,68,.3));animation:float 3.4s ease-in-out infinite}
/* animaciones */
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@keyframes pop{0%{transform:scale(.9);opacity:.4}60%{transform:scale(1.04)}100%{transform:scale(1);opacity:1}}
@keyframes popcard{0%{box-shadow:0 0 0 0 rgba(47,191,127,.55)}100%{box-shadow:0 0 0 22px rgba(47,191,127,0)}}
@keyframes shake{0%,100%{transform:none}20%{transform:translateX(-7px)}40%{transform:translateX(7px)}60%{transform:translateX(-4px)}80%{transform:translateX(4px)}}
@keyframes starin{from{transform:scale(0) rotate(-40deg);opacity:0}to{transform:scale(1) rotate(0);opacity:1}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
@keyframes drop{from{opacity:0;transform:translateY(-14px)}to{opacity:1;transform:none}}
@keyframes fade{to{opacity:0;transform:translateY(-8px)}}
canvas.confetti{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:60}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition:none!important;scroll-behavior:auto!important}}
@media(max-width:560px){.stats{grid-template-columns:1fr 1fr}.stats .stat:first-child,.stats .stat:last-child:nth-child(even){grid-column:1/-1}.stat{padding:10px;gap:9px}.stat .ic{width:36px;height:36px;font-size:1.2rem;border-radius:11px}.stat b{font-size:1rem}.xpchip{font-size:.8rem;padding:5px 9px}body{font-size:16px}h1{font-size:1.5rem}.hero h1{font-size:1.75rem}.card{padding:17px;border-radius:18px}.topics{grid-template-columns:1fr}.hright .link{display:none}}
@media print{body{background:#fff}body::before{display:none}.top,#toasts{display:none}.card{box-shadow:none}}