/* site.css — Math Workout marketing site (home + legal + support).
 * Playful-premium brain-gym: pastel-purple, chunky 3D, Fredoka, lots of motion. */

:root{
  --ink:#2c1c52; --ink-soft:#6b5b91; --purple:#6c4ce0; --purple-d:#4a2fb0;
  --gold:#f5c233; --mint:#2fb88a; --pink:#ff6f9c; --sky:#39a0ff; --space:#0c0a2a;
  --card:#fff; --line:#e7ddff; --maxw:1100px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Fredoka',system-ui,sans-serif;color:var(--ink);line-height:1.5;
  background:
    radial-gradient(120% 80% at 85% -5%,#efe7ff 0,rgba(239,231,255,0) 55%),
    radial-gradient(100% 70% at 0% 0%,#fdeef6 0,rgba(253,238,246,0) 50%),
    linear-gradient(180deg,#f7f3ff 0,#fff 55%);
  min-height:100vh;overflow-x:hidden;-webkit-text-size-adjust:100%;
}
a{color:var(--purple-d);text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px;position:relative;z-index:1}
img{max-width:100%}

/* floating background operators */
.ops{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.ops span{position:absolute;font-weight:700;color:#6c4ce0;opacity:.06;font-size:clamp(70px,12vw,170px);animation:bob 9s ease-in-out infinite}
.ops span:nth-child(1){top:9%;left:5%;transform:rotate(-12deg);animation-delay:0s}
.ops span:nth-child(2){top:26%;right:7%;transform:rotate(10deg);animation-delay:1.5s}
.ops span:nth-child(3){top:64%;left:3%;transform:rotate(8deg);animation-delay:3s}
.ops span:nth-child(4){bottom:7%;right:11%;transform:rotate(-8deg);animation-delay:4.5s}
@keyframes bob{0%,100%{transform:translateY(0) rotate(var(--r,0))}50%{transform:translateY(-16px) rotate(var(--r,0))}}

/* header */
header.site{position:sticky;top:0;z-index:30;backdrop-filter:saturate(1.4) blur(10px);
  background:rgba(255,255,255,.72);border-bottom:1px solid rgba(231,221,255,.7)}
/* NB: padding-block, NOT the `padding` shorthand — `.bar` shares its element with
   `.wrap` (`<div class="wrap bar">`); a `padding` shorthand here would reset
   `.wrap`'s horizontal 22px to 0 and flush the logo to the screen edge. */
.bar{display:flex;align-items:center;justify-content:space-between;padding-block:11px;gap:12px;min-height:60px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;line-height:1;letter-spacing:-.02em;color:var(--ink);white-space:nowrap}
.brand span{display:inline-block;line-height:1}
.brand img{width:36px;height:36px;border-radius:10px;box-shadow:0 3px 10px rgba(108,76,224,.25);flex:0 0 auto;display:block}
.nav{display:flex;align-items:center;gap:22px}
.nav a.lnk{font-weight:500;color:var(--ink-soft);font-size:15px}
.nav a.lnk:hover{color:var(--purple-d)}

/* chunky 3D buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-family:inherit;font-weight:700;line-height:1;
  font-size:17px;color:#fff;cursor:pointer;background:linear-gradient(180deg,#8b6bff,#6c4ce0 60%,#5a3ed0);
  border:none;border-radius:16px;padding:14px 26px;box-shadow:0 6px 0 0 #45299e,0 12px 22px rgba(74,47,176,.32);
  transition:transform .08s,box-shadow .08s;text-decoration:none}
.btn:active{transform:translateY(4px);box-shadow:0 2px 0 0 #45299e,0 6px 14px rgba(74,47,176,.3)}
.btn.small{font-size:15px;padding:9px 17px;border-radius:13px;box-shadow:0 4px 0 0 #45299e,0 8px 16px rgba(74,47,176,.28)}
.btn.gold{background:linear-gradient(180deg,#ffe08a,#f5c233 60%,#e8a41e);color:#3a2606;box-shadow:0 6px 0 0 #b8860b,0 12px 22px rgba(184,134,11,.3)}
.btn.gold:active{box-shadow:0 2px 0 0 #b8860b,0 6px 14px rgba(184,134,11,.3)}
.btn.ghost{background:rgba(255,255,255,.16);color:#fff;box-shadow:0 5px 0 0 rgba(0,0,0,.18)}
.btn.ghost:active{box-shadow:0 2px 0 0 rgba(0,0,0,.18)}

/* ---------- HERO CAROUSEL ---------- */
.carousel{position:relative;margin:26px 0 8px;border-radius:30px;overflow:hidden;
  box-shadow:0 26px 60px rgba(74,47,176,.22)}
.track{display:flex;transition:transform .6s cubic-bezier(.7,0,.2,1);will-change:transform}
.slide{min-width:100%;padding:54px 46px;display:grid;grid-template-columns:1.05fr .95fr;gap:30px;align-items:center;
  min-height:430px;position:relative;overflow:hidden}
.slide .copy{position:relative;z-index:2}
.slide .pill{display:inline-flex;align-items:center;gap:7px;font-weight:600;font-size:13px;padding:6px 13px;border-radius:30px;margin-bottom:14px}
.slide h2{font-size:clamp(30px,4.6vw,50px);line-height:1.02;letter-spacing:-.03em;font-weight:700}
.slide p{font-size:clamp(15px,1.7vw,18px);margin:14px 0 22px;max-width:34ch;opacity:.92}
.slide .art{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;min-height:260px}
.slide .cta-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}

/* per-slide palettes */
.slide.s-brand{background:linear-gradient(160deg,#fff,#efe7ff)}
.slide.s-brand .pill{background:#efe7ff;color:var(--purple-d)}
.slide.s-galaxy{background:radial-gradient(120% 120% at 80% 10%,#2a1d6e,#0c0a2a 70%);color:#eaf0ff}
.slide.s-galaxy .pill{background:rgba(124,108,255,.25);color:#cfe0ff}
.slide.s-galaxy p{color:#c9d2ff}
.slide.s-world{background:linear-gradient(160deg,#143a6b,#2a7fd6);color:#fff}
.slide.s-world .pill{background:rgba(255,255,255,.18);color:#fff}
.slide.s-brain{background:linear-gradient(160deg,#0d5e4a,#2fb88a);color:#fff}
.slide.s-brain .pill{background:rgba(255,255,255,.18);color:#fff}
.slide.s-pro{background:linear-gradient(160deg,#5b3d00,#f5c233 130%);background:linear-gradient(160deg,#3a2606,#a9781a);color:#fff}
.slide.s-pro .pill{background:rgba(245,194,51,.3);color:#ffe9a0}

/* carousel chrome */
.dots{position:absolute;bottom:16px;left:0;right:0;display:flex;gap:9px;justify-content:center;z-index:5}
.dots button{width:9px;height:9px;border-radius:50%;border:none;background:rgba(255,255,255,.5);cursor:pointer;padding:0;transition:width .25s,background .25s}
.dots button.on{width:26px;border-radius:6px;background:#fff}
.slide.s-brand ~ .dots button,.dots.lighton button{background:rgba(108,76,224,.3)}
.arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:5;width:42px;height:42px;border-radius:50%;border:none;
  background:rgba(255,255,255,.85);box-shadow:0 6px 16px rgba(0,0,0,.18);cursor:pointer;display:flex;align-items:center;justify-content:center}
.arrow.prev{left:14px}.arrow.next{right:14px}
.arrow svg{width:20px;height:20px}

/* decorations hovering IN FRONT of the banner (overflow the frame) */
.carousel-wrap{position:relative}
.fx{position:absolute;inset:0;z-index:6;pointer-events:none;overflow:visible}
.fx-group{position:absolute;inset:0;opacity:0;transition:opacity .45s;overflow:visible}
.fx-group.on{opacity:1}
.fx-ship,.fx-plane,.fx-coin{position:absolute}
.fx-ship svg,.fx-plane svg,.fx-coin svg{display:block;width:100%;height:auto}
/* trajectories are CSS-var driven so JS can randomise them per pass (--y0/--ym/--y1
   = vertical offsets, --rot = tilt, --dur = speed). Loop boundaries are off-screen
   for ship/plane, so a fresh path swaps in seamlessly each loop. */
.fx-ship{top:var(--top,18%);left:0;width:clamp(58px,8vw,90px);filter:drop-shadow(0 6px 14px rgba(0,0,0,.45));animation:shipBy var(--dur,4.4s) linear infinite}
@keyframes shipBy{0%{transform:translateX(-150px) translateY(var(--y0,0px)) rotate(var(--rot,5deg))}50%{transform:translateX(46vw) translateY(var(--ym,-10px)) rotate(var(--rot,5deg))}100%{transform:translateX(104vw) translateY(var(--y1,0px)) rotate(var(--rot,5deg))}}
.fx-plane{top:var(--top,6%);left:0;width:clamp(42px,6vw,58px);filter:drop-shadow(0 6px 12px rgba(0,0,0,.25));animation:planeBy var(--dur,6.5s) ease-in-out infinite}
@keyframes planeBy{0%{transform:translate(-80px,var(--y0,18px)) rotate(var(--rot,10deg))}50%{transform:translate(48vw,var(--ym,-26px)) rotate(calc(var(--rot,10deg) * -0.6))}100%{transform:translate(106vw,var(--y1,12px)) rotate(var(--rot,10deg))}}
.fx-coin{top:-26px;right:var(--right,7%);width:clamp(46px,7vw,70px);filter:drop-shadow(0 10px 18px rgba(184,134,11,.45));animation:coinFloat var(--dur,3.8s) ease-in-out infinite}
@keyframes coinFloat{0%,100%{transform:translateY(0) rotate(var(--r0,-8deg))}50%{transform:translateY(var(--ym,-14px)) rotate(var(--r1,8deg))}}
/* NB: these decorative hero FX intentionally run even under prefers-reduced-motion
   (brand effect the owner wants); the suppression that hid them was removed. */

/* hero art pieces */
.tile{width:min(240px,58vw);aspect-ratio:1;border-radius:26%;background:linear-gradient(160deg,#fff,#efe7ff);
  box-shadow:0 28px 56px rgba(74,47,176,.28),inset 0 2px 0 rgba(255,255,255,.9);display:flex;align-items:center;justify-content:center;
  transform:rotate(-6deg);animation:floaty 5s ease-in-out infinite}
.tile img{width:78%;height:78%;object-fit:contain;filter:drop-shadow(0 10px 18px rgba(74,47,176,.25))}
@keyframes floaty{0%,100%{transform:rotate(-6deg) translateY(0)}50%{transform:rotate(-4deg) translateY(-12px)}}
.chip{position:absolute;background:#fff;border:1px solid var(--line);border-radius:15px;padding:9px 13px;font-weight:600;font-size:13.5px;
  box-shadow:0 14px 30px rgba(74,47,176,.16);display:flex;align-items:center;gap:7px;color:var(--ink);animation:floaty 6s ease-in-out infinite}
.chip i{width:9px;height:9px;border-radius:50%;display:inline-block}
.chip.a{top:4%;left:-2%;color:#1f8a64}.chip.a i{background:var(--mint)}
.chip.b{bottom:8%;right:-4%;color:#b14cff;animation-delay:1.5s}.chip.b i{background:#b14cff}
.chip.c{bottom:40%;left:-8%;color:#c47a00;animation-delay:.7s}.chip.c i{background:var(--gold)}

/* galaxy slide art */
.scene{width:min(340px,80vw);height:240px;position:relative}
.stars i{position:absolute;width:3px;height:3px;border-radius:50%;background:#fff;opacity:.85;animation:tw 2.4s ease-in-out infinite}
.planet{position:absolute;right:8%;top:8%;width:90px;height:90px;border-radius:50%;
  background:radial-gradient(circle at 35% 30%,#ff9bd0,#b14cff 70%,#5a2fb0);box-shadow:0 0 36px rgba(177,76,255,.5)}
.planet::after{content:"";position:absolute;left:-20%;top:42%;width:140%;height:18%;border-radius:50%;
  border:5px solid rgba(255,255,255,.35);transform:rotate(-18deg)}
.rocket{position:absolute;left:16%;bottom:16%;animation:floaty 3.2s ease-in-out infinite}
@keyframes tw{0%,100%{opacity:.2;transform:scale(.7)}50%{opacity:1;transform:scale(1.2)}}

/* world slide globe */
.globe{width:200px;height:200px;border-radius:50%;position:relative;
  background:radial-gradient(circle at 34% 30%,#7ec6ff,#2a7fd6 70%,#143a6b);
  box-shadow:0 18px 44px rgba(20,58,107,.5),inset -10px -14px 30px rgba(0,0,0,.25);overflow:hidden}
.globe::before,.globe::after{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid rgba(255,255,255,.28)}
.globe::before{transform:scaleX(.45)}.globe::after{transform:scaleY(.45)}
.orbit{position:absolute;inset:-22px;border-radius:50%;border:2px dashed rgba(255,255,255,.35);animation:spin 14s linear infinite}
.orbit i{position:absolute;top:-7px;left:50%;width:13px;height:13px;border-radius:50%;background:var(--gold);box-shadow:0 0 12px var(--gold)}
@keyframes spin{to{transform:rotate(360deg)}}

/* brain gauge */
.gauge{width:230px;height:150px;position:relative}
.gauge svg{width:100%;height:100%}
.needle{transform-origin:115px 120px;animation:sweep 3s ease-in-out infinite alternate}
@keyframes sweep{0%{transform:rotate(-46deg)}100%{transform:rotate(46deg)}}

/* pro medal */
.medal{width:180px;height:180px;position:relative;animation:floaty 4.5s ease-in-out infinite}
.medal .disc{position:absolute;inset:18px;border-radius:50%;background:radial-gradient(circle at 38% 32%,#ffe9a0,#f5c233 55%,#b8860b);
  box-shadow:0 14px 34px rgba(184,134,11,.5),inset 0 3px 6px rgba(255,255,255,.6);display:flex;align-items:center;justify-content:center}
.medal .shine{position:absolute;inset:0;border-radius:50%;background:conic-gradient(from 0deg,transparent,rgba(255,255,255,.5),transparent 30%);animation:spin 6s linear infinite;mix-blend-mode:overlay}

/* fade-up on scroll */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s,transform .6s}
.reveal.in{opacity:1;transform:none}

/* sections */
section{padding:50px 0}
.h2{font-size:clamp(26px,4vw,38px);font-weight:700;letter-spacing:-.02em;text-align:center}
.sub{text-align:center;color:var(--ink-soft);max-width:48ch;margin:10px auto 0;font-size:16px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:34px}
.feat{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:0 10px 28px rgba(74,47,176,.07);transition:transform .15s,box-shadow .15s}
.feat:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(74,47,176,.15)}
.ic{width:50px;height:50px;border-radius:14px;display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.feat h3{font-size:19px;font-weight:600;margin-bottom:6px}
.feat p{color:var(--ink-soft);font-size:14.5px}
.themes{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:30px}
.sw{width:46px;height:46px;border-radius:14px;border:3px solid #fff;box-shadow:0 6px 16px rgba(74,47,176,.18)}

/* QR / get-it card */
.getit{background:linear-gradient(160deg,#2c1c52,#4a2fb0);color:#fff;border-radius:28px;padding:40px 30px;
  box-shadow:0 24px 60px rgba(44,28,82,.4);margin-top:10px;display:grid;grid-template-columns:auto 1fr;gap:34px;align-items:center}
.getit .qr{background:#fff;border-radius:20px;padding:14px;width:200px;height:200px;flex:0 0 auto}
.getit .qr img{width:100%;height:100%;display:block}
.getit h2{font-size:clamp(24px,3.4vw,32px);font-weight:700}
.getit p{color:#d8ccff;margin:10px 0 18px;max-width:44ch}
.store{display:inline-flex;align-items:center;gap:10px;background:#000;color:#fff;border-radius:14px;padding:11px 20px;text-decoration:none;font-weight:600}
.store small{display:block;font-size:10px;opacity:.8;font-weight:400;line-height:1}
.store b{font-size:17px;line-height:1.1;color:#fff}

/* footer */
footer.site{padding:40px 0;margin-top:20px;border-top:1px solid var(--line);color:var(--ink-soft);font-size:14px}
.foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:18px}
.foot .cols{display:flex;gap:40px;flex-wrap:wrap}
.foot h4{font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--ink);margin-bottom:10px}
.foot a{display:block;color:var(--ink-soft);margin:5px 0;font-size:14px}
.foot a:hover{color:var(--purple-d)}

/* legal/doc + support pages */
.doc{max-width:760px;margin:30px auto;background:#fff;border:1px solid var(--line);border-radius:22px;padding:38px 34px;box-shadow:0 12px 34px rgba(74,47,176,.08)}
.doc h1{font-size:34px;font-weight:700;letter-spacing:-.02em;margin-bottom:6px}
.doc .upd{color:var(--ink-soft);font-size:14px;margin-bottom:22px}
.doc h2{font-size:21px;font-weight:600;margin:26px 0 8px}
.doc p,.doc li{color:#43386a;font-size:15.5px;margin:8px 0}
.doc ul{padding-left:22px}
.doc .note{background:#fff7e6;border:1px solid #ffe2a6;border-radius:12px;padding:12px 14px;color:#7a5a10;font-size:14px;margin:16px 0}
.support-card{max-width:560px;margin:30px auto;background:#fff;border:1px solid var(--line);border-radius:24px;padding:32px 28px;box-shadow:0 14px 38px rgba(74,47,176,.1)}
.support-card h1{font-size:30px;font-weight:700;text-align:center}
.support-card .sub{margin-bottom:22px}
.field{margin:14px 0}
.field label{display:block;font-weight:600;font-size:14px;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;font-family:inherit;font-size:16px;color:var(--ink);
  background:#faf8ff;border:2px solid var(--line);border-radius:13px;padding:12px 14px}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--purple)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.support-msg{min-height:20px;text-align:center;font-weight:600;font-size:14px;margin-top:10px}
.support-msg.ok{color:var(--mint)}.support-msg.err{color:#e5484d}
.support-card .btn{width:100%;margin-top:8px}

/* responsive */
@media(max-width:820px){
  .slide{grid-template-columns:1fr;text-align:center;padding:40px 26px 56px;min-height:0;gap:16px}
  .slide .art{order:-1;min-height:200px}
  .slide .cta-row{justify-content:center}
  .slide p{margin-left:auto;margin-right:auto}
  .arrow{display:none}
  .grid{grid-template-columns:1fr}
  .getit{grid-template-columns:1fr;text-align:center;justify-items:center;gap:22px}
  .getit p{margin-left:auto;margin-right:auto}
  .nav a.lnk{display:none}
  .brand{font-size:17px}
}
@media(max-width:380px){ .brand span{font-size:16px} }