@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800;900&display=swap');
:root{--bg:#f5f1fc;--surface:#fff;--text:#24183d;--muted:#6d6480;--primary:#6b3de4;--primary-dark:#4921a7;--accent:#ff8c42;--border:#dfd6ef;--shadow:0 20px 55px rgba(60,34,109,.13)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Nunito,system-ui,sans-serif;color:var(--text);background:radial-gradient(circle at 7% 0%,rgba(255,140,66,.14),transparent 27%),radial-gradient(circle at 95% 8%,rgba(107,61,228,.16),transparent 31%),var(--bg)}
a{color:inherit}.site-header{position:sticky;top:0;z-index:10;display:flex;justify-content:space-between;align-items:center;width:min(1240px,calc(100% - 24px));margin:12px auto;padding:12px 16px;border:1px solid rgba(255,255,255,.8);border-radius:17px;background:rgba(255,255,255,.88);box-shadow:0 10px 30px rgba(43,25,77,.08);backdrop-filter:blur(12px)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:900;font-size:1.16rem}.brand__mark{display:grid;place-items:center;width:36px;height:36px;border-radius:11px;color:#fff;background:linear-gradient(145deg,var(--primary),#9365ef)}.progress-link{text-decoration:none;color:var(--muted);font-size:.9rem;font-weight:800}
main{width:min(1240px,calc(100% - 24px));margin:0 auto}.hero,.collection,.closing{background:rgba(255,255,255,.96);border-radius:30px;box-shadow:var(--shadow)}.hero{display:grid;grid-template-columns:1.3fr .7fr;align-items:center;gap:28px;min-height:520px;padding:clamp(30px,6vw,72px)}.eyebrow{margin:0 0 7px;color:var(--primary);font-size:.78rem;font-weight:900;text-transform:uppercase;letter-spacing:.14em}h1{max-width:780px;margin:0;font-size:clamp(3rem,7vw,5.8rem);line-height:.95;letter-spacing:-.045em}.hero__lead{max-width:700px;margin:24px 0;color:var(--muted);font-size:1.18rem;line-height:1.7}.button{display:inline-flex;justify-content:center;align-items:center;min-height:52px;padding:0 22px;border-radius:14px;text-decoration:none;font-weight:900}.button--primary{color:#fff;background:linear-gradient(135deg,var(--primary),#9060ec);box-shadow:0 13px 27px rgba(107,61,228,.25)}
.hero__visual{position:relative;min-height:360px}.orb{position:absolute;inset:55px 35px 30px 60px;display:grid;place-items:center;border-radius:50%;color:#fff;font-size:8rem;font-weight:900;background:radial-gradient(circle at 35% 25%,rgba(255,255,255,.28),transparent 24%),linear-gradient(145deg,var(--primary),#8e5eea)}.float-card{position:absolute;z-index:2;display:grid;place-items:center;width:78px;height:96px;border-radius:17px;background:#fff;border:1px solid var(--border);box-shadow:0 17px 34px rgba(50,28,92,.16);font-size:1.8rem;font-weight:900}.float-card:nth-child(1){top:0;left:5px;transform:rotate(-8deg)}.float-card:nth-child(2){top:8px;right:5px;transform:rotate(7deg)}.float-card:nth-child(3){bottom:0;right:15px;transform:rotate(-4deg);color:#fff;background:var(--accent)}
.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin:22px 0}.principles article{display:grid;grid-template-columns:auto 1fr;gap:4px 12px;align-items:center;padding:19px;border:1px solid var(--border);border-radius:20px;background:#fff;box-shadow:0 12px 28px rgba(60,34,109,.07)}.principles span{grid-row:1/3;display:grid;place-items:center;width:40px;height:40px;border-radius:50%;color:#fff;font-weight:900;background:var(--primary)}.principles p{margin:0;color:var(--muted);font-size:.92rem}
.collection{padding:clamp(25px,5vw,52px)}.section-heading{display:flex;justify-content:space-between;gap:20px;align-items:flex-end;margin-bottom:28px}.section-heading h2,.closing h2{margin:0;font-size:clamp(2rem,4vw,3rem)}.filters{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px}.filter{border:0;padding:10px 13px;border-radius:999px;cursor:pointer;color:var(--primary-dark);font:inherit;font-weight:900;background:#eee7fb}.filter.is-active{color:#fff;background:var(--primary)}
.experiments-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.experiment-card{display:flex;flex-direction:column;overflow:hidden;border:1px solid var(--border);border-radius:24px;background:#fff;box-shadow:0 12px 27px rgba(57,32,101,.08);transition:transform .18s ease,box-shadow .18s ease}.experiment-card:hover{transform:translateY(-4px);box-shadow:0 20px 38px rgba(57,32,101,.13)}.experiment-card__visual{display:grid;place-items:center;min-height:155px;font-size:4.4rem;background:linear-gradient(135deg,#5a32c4,#8257df)}.experiment-card[data-accent="orange"] .experiment-card__visual{background:linear-gradient(135deg,#eb7f31,#ffad67)}.experiment-card[data-accent="blue"] .experiment-card__visual{background:linear-gradient(135deg,#245bbf,#4b8ff0)}.experiment-card[data-accent="pink"] .experiment-card__visual{background:linear-gradient(135deg,#b12f86,#e65ab3)}.experiment-card__body{display:flex;flex:1;flex-direction:column;padding:22px}.room-label{display:inline-block;width:max-content;padding:5px 9px;border-radius:999px;color:var(--primary-dark);font-size:.72rem;font-weight:900;text-transform:uppercase;background:#eee7fb}.experiment-card h3{margin:14px 0 7px;font-size:1.45rem}.experiment-card p{margin:0;color:var(--muted);line-height:1.58}.reflection-question{margin:16px 0;padding:12px;border-left:4px solid var(--accent);border-radius:9px;background:#fff3e9;color:#5a391f;font-size:.9rem;font-weight:800}.card-action{margin-top:auto;display:flex;justify-content:space-between;align-items:center;padding-top:4px;text-decoration:none;color:var(--primary);font-weight:900}.completed-badge{font-size:.75rem;color:#197452}
.closing{display:flex;align-items:center;gap:20px;margin-top:22px;padding:35px}.closing__icon{display:grid;place-items:center;flex:0 0 72px;width:72px;height:72px;border-radius:20px;font-size:38px;background:#eee7fb}.closing p:last-child{margin:10px 0 0;color:var(--muted)}footer{text-align:center;padding:30px 10px;color:var(--muted);font-size:.9rem}
@media(max-width:950px){.experiments-grid{grid-template-columns:repeat(2,1fr)}.hero{grid-template-columns:1fr}.hero__visual{min-height:310px}.orb{inset:45px 20% 20px}.principles{grid-template-columns:1fr}.section-heading{align-items:flex-start;flex-direction:column}.filters{justify-content:flex-start}}
@media(max-width:620px){.site-header,main{width:calc(100% - 14px)}.progress-link{font-size:0}.progress-link span{font-size:.9rem}.hero,.collection,.closing{border-radius:22px}.hero{min-height:auto}.hero__visual{min-height:260px}.orb{inset:42px 15% 18px;font-size:6rem}.float-card{width:58px;height:76px}.experiments-grid{grid-template-columns:1fr}.closing{align-items:flex-start}.closing__icon{flex-basis:52px;width:52px;height:52px;font-size:28px}}

.collection-controls{
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:11px;
}
@media(max-width:950px){
  .collection-controls{align-items:flex-start;width:100%}
}