:root{--ink:#111827;--muted:#667085;--bg:#f7f8f4;--panel:#fff;--soft:#eef1ff;--line:#dfe3ea;--blue:#3157d5;--cyan:#1597ff;--radius:22px;--shadow:0 18px 50px rgba(28,39,64,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.55}a{color:inherit}.site-header{min-height:72px;max-width:1160px;margin:auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{font-weight:880;letter-spacing:-.04em;text-decoration:none}.brand>span{color:var(--blue)}.brand>span:first-child{margin-right:5px}.site-header nav{display:flex;gap:18px}.site-header nav a{color:var(--muted);font-size:.82rem;text-decoration:none}.site-header nav a:hover{color:var(--blue)}main{width:min(1080px,calc(100% - 40px));margin:auto;padding:32px 0 86px}.breadcrumbs{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:.72rem}.breadcrumbs a:hover{color:var(--blue)}.page-hero{padding:64px 0 40px;max-width:820px}.eyebrow{color:var(--blue);font-size:.7rem;font-weight:850;letter-spacing:.15em;text-transform:uppercase}.page-hero h1{font-size:clamp(2.6rem,7vw,5.5rem);line-height:1;letter-spacing:-.065em;margin:12px 0 20px}.page-hero h1 span{color:var(--blue)}.page-hero>p:not(.eyebrow){color:var(--muted);max-width:720px}.page-hero label{display:block;font-size:.74rem;font-weight:800;margin:28px 0 8px}.page-hero input{width:min(600px,100%);border:1px solid #b9c2d1;border-radius:999px;background:#fff;padding:14px 19px;font:inherit}.page-hero input:focus{outline:3px solid rgba(21,151,255,.32);border-color:var(--cyan)}#activity-result{font-size:.72rem;color:var(--blue)}.category-links{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:38px}.category-links a{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 12px;text-decoration:none;font-size:.72rem;font-weight:750}.category-links a:hover{border-color:var(--blue);color:var(--blue)}.activity-group{scroll-margin-top:20px;margin-top:48px}.group-heading{display:flex;align-items:end;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:13px}.group-heading h2{font-size:clamp(1.55rem,4vw,2.4rem);letter-spacing:-.045em;margin:0}.group-heading span{color:var(--muted);font-size:.7rem}.activity-list{display:grid;grid-template-columns:1fr 1fr;gap:9px}.activity-card a{height:100%;display:grid;grid-template-columns:45px 1fr auto;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:15px;text-decoration:none;box-shadow:0 5px 18px rgba(28,39,64,.03)}.activity-card a:hover{border-color:var(--blue);transform:translateY(-1px)}.activity-icon{display:grid;place-items:center;width:43px;height:43px;border-radius:13px;background:var(--soft);color:var(--blue);font-size:1.25rem}.activity-card strong{display:block;font-size:.9rem}.activity-card small{display:block;color:var(--muted);font-size:.68rem;margin-top:3px}.activity-card b{color:var(--blue)}.empty-state{text-align:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:38px}.empty-state a{color:var(--blue);font-weight:800}footer{max-width:1080px;margin:auto;border-top:1px solid var(--line);padding:28px 0 40px;color:var(--muted);font-size:.76rem;display:flex;justify-content:space-between}footer a{font-weight:800;text-decoration:none;color:var(--ink)}:focus-visible{outline:3px solid var(--cyan);outline-offset:4px}@media(max-width:700px){.site-header nav a:last-child{display:none}main{width:min(100% - 28px,1080px)}.page-hero{padding-top:46px}.activity-list{grid-template-columns:1fr}.activity-card small{font-size:.65rem}footer{width:calc(100% - 28px);display:grid;gap:6px}}