/* Squishy Math School — landing page */
:root{
  --sky:#cfe6ff; --sky-light:#eaf4ff; --sky-deep:#a9d2ff; --cloud:#ffffff;
  --ink:#2b2350; --ink-soft:#5d5580; --ink-faint:#8d86b3; --line:#dfe6f7;
  --gum:#ff5c9a; --gum-deep:#d63a77; --grape:#8f63ff; --grape-deep:#6a3fd6;
  --mint:#4fe3b0; --mint-deep:#1fb586; --sun:#ffd23f; --sun-deep:#e0a800; --tangerine:#ff9e4a;
  --display:"Fredoka","Arial Rounded MT Bold",system-ui,sans-serif;
  --body:"Nunito","Avenir Next Rounded","Arial Rounded MT Bold",system-ui,sans-serif;
  --r:24px; --shadow:0 10px 0 rgba(43,35,80,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--sky);color:var(--ink);font-family:var(--body);font-size:18px;line-height:1.55;
  background-image:
    radial-gradient(circle at 12% 12%, #ffffffaa 0 110px, transparent 111px),
    radial-gradient(circle at 88% 28%, #ffffff88 0 80px, transparent 81px),
    radial-gradient(circle at 70% 92%, #ffffff77 0 140px, transparent 141px),
    linear-gradient(180deg,#e2f1ff 0%, var(--sky) 40%, var(--sky-deep) 100%);
  background-attachment:fixed;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--grape-deep)}
a:focus-visible,button:focus-visible{outline:4px solid var(--grape);outline-offset:3px}
.wrap{max-width:1080px;margin:0 auto;padding-inline:20px}
h1,h2,h3{font-family:var(--display);font-weight:700;line-height:1.08;margin:0;text-wrap:balance}
h1{font-size:clamp(40px,6vw,66px);letter-spacing:.2px}
h2{font-size:clamp(30px,4vw,42px)}
h3{font-size:23px}
p{margin:0}
.lede{font-size:clamp(19px,2.2vw,23px);color:var(--ink-soft);font-weight:700;max-width:34ch}
.eyebrow{font-family:var(--display);font-weight:600;font-size:15px;letter-spacing:.14em;text-transform:uppercase;color:var(--grape-deep)}
section{padding-block:72px}
.section-head{display:flex;flex-direction:column;gap:10px;max-width:62ch;margin-bottom:34px}
.section-head p{color:var(--ink-soft);font-weight:600}

/* nav */
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:18px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);font-family:var(--display);font-weight:700;font-size:24px}
.blob{width:40px;height:36px;border-radius:50% 50% 45% 55% / 60% 60% 40% 40%;background:linear-gradient(160deg,var(--gum),var(--grape));display:grid;place-items:center;color:#fff;font-size:20px;box-shadow:0 4px 0 rgba(43,35,80,.18);flex:none}
.nav-links{display:flex;gap:8px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.nav-links a.text{color:var(--ink-soft);font-weight:800;text-decoration:none;padding:10px 12px;border-radius:12px}
.nav-links a.text:hover{background:#ffffff88;color:var(--ink)}

/* buttons */
.btn{
  font-family:var(--display);font-weight:700;font-size:20px;letter-spacing:.2px;text-decoration:none;
  padding:14px 26px;border-radius:20px;color:#fff;background:var(--gum);border:0;cursor:pointer;
  box-shadow:0 6px 0 var(--gum-deep);display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:56px;
  transition:transform .08s,box-shadow .08s
}
.btn:active{transform:translateY(4px);box-shadow:0 2px 0 var(--gum-deep)}
.btn.ghost{background:var(--cloud);color:var(--ink);box-shadow:0 6px 0 rgba(43,35,80,.16)}
.btn.ghost:active{box-shadow:0 2px 0 rgba(43,35,80,.16)}
.btn.small{font-size:17px;padding:10px 18px;min-height:46px;border-radius:16px}

/* hero */
.hero{padding-block:36px 72px;display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.hero-copy{display:flex;flex-direction:column;gap:22px}
.hero h1 span{color:var(--gum)}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.cta-note{font-size:15px;color:var(--ink-soft);font-weight:700}
.counters{display:flex;gap:26px;flex-wrap:wrap;margin-top:6px}
.counters[hidden]{display:none}
.counter b{display:block;font-family:var(--display);font-size:32px;line-height:1;color:var(--ink);font-variant-numeric:tabular-nums}
.counter span{font-size:14px;font-weight:800;color:var(--ink-soft);letter-spacing:.06em;text-transform:uppercase}
.device{
  background:var(--ink);border-radius:36px;padding:14px;box-shadow:0 24px 0 rgba(43,35,80,.16), 0 30px 60px rgba(43,35,80,.25);
  transform:rotate(-2deg);max-width:420px;margin:0 auto;width:100%
}
.device img{border-radius:24px}
.hero-fig{position:relative}
.sticker{position:absolute;right:-6px;top:-18px;background:var(--sun);color:var(--ink);font-family:var(--display);font-weight:700;padding:10px 16px;border-radius:999px;box-shadow:0 5px 0 var(--sun-deep);transform:rotate(6deg);font-size:17px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;counter-reset:step}
.step{background:var(--cloud);border-radius:var(--r);padding:26px 24px 24px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px}
.step .n{font-family:var(--display);font-weight:700;font-size:16px;color:#fff;background:var(--grape);width:40px;height:40px;border-radius:14px;display:grid;place-items:center;box-shadow:0 4px 0 var(--grape-deep)}
.step p{color:var(--ink-soft);font-weight:600}
.step code{font-family:ui-monospace,Menlo,monospace;font-size:14px;background:#f2f4ff;padding:2px 8px;border-radius:8px;color:var(--ink)}

/* games */
.games{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.game{background:var(--cloud);border-radius:var(--r);box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column}
.game .shot{background:var(--sky-light);border-bottom:1px solid var(--line);aspect-ratio:820/560;overflow:hidden}
.game .shot img{width:100%;height:100%;object-fit:cover;object-position:top}
.game .shot.placeholder{display:grid;place-items:center;font-size:96px;background:linear-gradient(160deg,#fff4b8,#ffe9c9)}
.game .shot.placeholder.puzzle{background:linear-gradient(160deg,#e4dbff,#c9f0ff)}
.game .body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px}
.game h3{display:flex;align-items:center;gap:10px}
.game h3 .ico{font-size:30px;line-height:1}
.game .does{font-weight:700}
.game .practices{color:var(--ink-soft);font-weight:600;font-size:16px}
.game .why{font-size:16px;color:var(--ink-soft);font-weight:600;border-left:4px solid var(--mint);padding-left:12px}
.tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:4px}
.tag{font-family:var(--display);font-weight:600;font-size:13px;background:#f2f4ff;color:var(--grape-deep);padding:4px 10px;border-radius:999px;letter-spacing:.02em}
.tag.opt{background:#fff3c4;color:#8a6200}

/* standards */
.table-wrap{overflow-x:auto;background:var(--cloud);border-radius:var(--r);box-shadow:var(--shadow);padding:6px}
table{border-collapse:collapse;width:100%;min-width:720px;font-size:16px}
th,td{text-align:left;padding:14px 16px;vertical-align:top;border-bottom:1px solid var(--line)}
th{font-family:var(--display);font-weight:600;font-size:15px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-soft)}
tr:last-child td{border-bottom:0}
td .code{font-family:var(--display);font-weight:600;color:var(--grape-deep);white-space:nowrap}
td .code + .code{margin-left:8px}
.std-note{margin-top:22px;background:var(--cloud);border-radius:var(--r);box-shadow:var(--shadow);padding:24px 26px;display:flex;flex-direction:column;gap:10px;max-width:72ch}
.std-note p{color:var(--ink-soft);font-weight:600}
.std-key{display:grid;grid-template-columns:repeat(2,1fr);gap:8px 24px;margin-top:16px;font-size:15px;color:var(--ink-soft);font-weight:600}
.std-key div b{color:var(--grape-deep);font-family:var(--display);font-weight:600}

/* why / features */
.cols{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{background:var(--cloud);border-radius:var(--r);box-shadow:var(--shadow);padding:26px 26px 24px;display:flex;flex-direction:column;gap:14px}
.card ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:12px}
.card li{display:flex;gap:12px;align-items:flex-start;font-weight:600;color:var(--ink-soft)}
.card li b{color:var(--ink)}
.check{flex:none;width:26px;height:26px;border-radius:9px;background:var(--mint);color:#0f3b2c;display:grid;place-items:center;font-weight:900;font-size:15px;margin-top:2px}
.card.sunny{background:linear-gradient(160deg,#fff8d6,#fff);}

/* faq */
.faq{display:flex;flex-direction:column;gap:12px;max-width:74ch}
details{background:var(--cloud);border-radius:18px;box-shadow:0 6px 0 rgba(43,35,80,.1);padding:4px 22px}
summary{cursor:pointer;font-family:var(--display);font-weight:600;font-size:20px;padding:16px 0;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:14px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:28px;color:var(--grape);line-height:1;flex:none}
details[open] summary::after{content:"–"}
details p{padding:0 0 18px;color:var(--ink-soft);font-weight:600}

/* closing + footer */
.closing{background:var(--ink);color:#fff;border-radius:32px;padding:52px 40px;display:flex;flex-direction:column;gap:18px;align-items:flex-start;box-shadow:0 14px 0 rgba(43,35,80,.25)}
.closing h2{color:#fff}
.closing p{color:#cfc8f0;font-weight:600;max-width:52ch}
footer{padding-block:40px 60px;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;color:var(--ink-soft);font-weight:700;font-size:15px}
footer nav{display:flex;gap:18px;flex-wrap:wrap}
footer a{color:var(--ink-soft)}
.love{font-family:var(--display);font-weight:600;color:var(--gum);font-size:18px}
.love b{color:var(--ink)}

@media (max-width:900px){
  .hero{grid-template-columns:1fr;gap:34px}
  .device{max-width:360px;transform:none}
  .steps,.games,.cols,.std-key{grid-template-columns:1fr}
  section{padding-block:56px}
}
@media (max-width:480px){
  .hero{padding-block:20px 48px}
  .btn{width:100%}
  .closing{padding:36px 24px}
  .std-key{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* brand line */
.brand-of{display:inline-flex;align-items:center;gap:8px;color:var(--ink-soft);font-weight:700;text-decoration:none}
.brand-of img{border-radius:50%;box-shadow:0 2px 0 rgba(43,35,80,.15)}
.brand-of b{color:var(--ink)}