:root{color-scheme:light;--bg:#f6f8f8;--surface:#fff;--text:#172326;--muted:#5e6b70;--primary:#075d67;--accent:#ff684c;--border:#dfe8e9}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.55}
a{color:var(--primary);text-underline-offset:3px}
a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}
.page{width:min(100% - 32px,1040px);margin:auto}
header{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:22px 0}
.brand{display:inline-flex;align-items:center;gap:12px;color:inherit;text-decoration:none}
.brand img{width:72px;height:48px;border-radius:10px;object-fit:cover;object-position:center 65%;flex-shrink:0}
.brand strong,.brand span{display:block}
.brand strong{font-size:18px;line-height:1.1;color:var(--text)}
.brand span{color:var(--muted);font-size:13px}
nav{display:flex;flex-wrap:wrap;gap:14px;font-size:14px}
main{padding:36px 0 42px}
.hero{display:grid;grid-template-columns:minmax(0,1fr) 260px;align-items:center;gap:48px;padding:44px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.home-hero{grid-template-columns:1fr}
h1{margin:0;font-size:clamp(38px,6vw,68px);line-height:1.08;letter-spacing:-.03em;overflow-wrap:break-word}
.lead{max-width:680px;margin:22px 0 0;color:var(--muted);font-size:19px}
.eyebrow{display:block;margin:0 0 12px;font-size:11px;font-weight:750;letter-spacing:.14em;color:var(--primary)}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.button{display:inline-flex;min-height:44px;align-items:center;justify-content:center;border-radius:10px;padding:10px 18px;border:1px solid var(--primary);background:var(--primary);color:#fff;font-weight:700;text-decoration:none}
.button.secondary{background:transparent;color:var(--primary)}
.products,.detail-section{padding:40px 0}
.section-title{margin:0 0 24px;font-size:clamp(25px,4vw,34px);line-height:1.2;letter-spacing:-.02em}
.app-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.product-card{display:flex;flex-direction:column;align-items:flex-start;padding:30px;border:1px solid var(--border);border-radius:22px;background:var(--surface);color:var(--text);text-decoration:none;transition:transform .18s,border-color .18s,box-shadow .18s}
.product-card:hover{transform:translateY(-3px);border-color:var(--primary);box-shadow:0 12px 30px #075d6710}
.product-icon{width:88px;height:88px;border-radius:20px;object-fit:contain;margin-bottom:24px;background:white}
.product-card h3{font-size:28px;line-height:1.2;margin:0 0 14px;letter-spacing:-.02em}
.product-card p{color:var(--muted);margin:0 0 26px}
.card-link{margin-top:auto;font-weight:750;color:var(--primary)}
.card-link span{margin-left:8px}
.teaching{background:#f0f5f0}
.hero-art{padding:30px;border:1px solid var(--border);border-radius:28px;background:#eaf2ec;text-align:center}
.hero-art img{display:block;width:100%;max-width:180px;height:auto;margin:auto;border-radius:36px}
.hero-art p{margin:18px 0 0;font-size:14px;color:var(--muted)}
.badge{display:inline-block;margin-top:18px;border:1px solid #cadbce;border-radius:100px;padding:6px 12px;font-size:12px;color:#235b45;background:#eaf2ec}
.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.feature{padding:24px;background:var(--surface);border:1px solid var(--border);border-radius:18px}
.feature h3{margin:0 0 10px;font-size:18px}
.feature p{margin:0;color:var(--muted);font-size:15px}
.steps{margin:0;padding-left:24px}
.steps li{padding:0 0 18px 8px}
.steps strong{display:block;margin-bottom:4px}
.steps span{color:var(--muted)}
.example{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:30px;padding:30px;border-radius:22px;background:#174d40;color:#fff}
.example h2{margin:0 0 12px;font-size:26px}
.example p{color:#d7e7de;margin:0}
.example table{width:100%;border-collapse:collapse;text-align:left;font-variant-numeric:tabular-nums}
.example th,.example td{padding:10px;border-bottom:1px solid #ffffff30}
.example caption{text-align:left;font-size:13px;color:#d7e7de;margin-bottom:10px}
.note{font-size:13px;color:var(--muted);margin:14px 0 0}
.faq details{padding:18px 0;border-top:1px solid var(--border)}
.faq summary{cursor:pointer;font-weight:700;min-height:24px}
.faq p{max-width:780px;color:var(--muted)}
.availability{padding:28px;border:1px solid var(--border);border-radius:20px;background:white}
.availability h2{font-size:24px;margin:0 0 10px}
.availability p{margin:0;color:var(--muted)}
footer{border-top:1px solid var(--border);padding:24px 0 32px;font-size:14px}
footer p{margin:0;color:var(--muted)}
footer .links{display:flex;flex-wrap:wrap;gap:14px;margin-top:10px}
@media(max-width:720px){header{flex-direction:column;align-items:flex-start}nav{align-items:flex-start}.hero{grid-template-columns:1fr;gap:26px;padding:32px 0}.hero-art{justify-self:start;width:210px}.app-grid,.feature-grid,.example{grid-template-columns:1fr}.product-card{padding:24px}.detail-section,.products{padding:30px 0}.example{padding:24px}.lead{font-size:17px}}
@media(prefers-reduced-motion:reduce){.product-card{transition:none}.product-card:hover{transform:none}}