:root{
  --bg:#fafaf9; --surface:#ffffff; --text:#1c1c1e; --muted:#6b6b70;
  --line:#e7e5e4; --accent:#2f5bd3; --accent-soft:#eef2fd;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#111113; --surface:#1a1a1d; --text:#f2f2f3; --muted:#9b9ba2;
    --line:#2a2a2e; --accent:#7c9cf5; --accent-soft:#1d2440;
  }
}
body.app-oneprompt{--accent:#d9541e;--accent-soft:#fdeee6}
body.app-sumaly{--accent:#1f7a5c;--accent-soft:#e3f4ed}
body.app-sizesword{--accent:#6b44d6;--accent-soft:#efe9fd}
@media (prefers-color-scheme: dark){
  body.app-oneprompt{--accent:#f08a5d;--accent-soft:#3a2117}
  body.app-sumaly{--accent:#5fcfa5;--accent-soft:#16332a}
  body.app-sizesword{--accent:#a68bf5;--accent-soft:#2a2145}
}

*{box-sizing:border-box;margin:0;padding:0}
body{
  font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:var(--bg); color:var(--text); line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent)}
.wrap{max-width:960px;margin:0 auto;padding:0 24px}

header{border-bottom:1px solid var(--line)}
header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px;flex-wrap:wrap}
.logo{font-weight:700;font-size:1.15rem;letter-spacing:-.01em;color:var(--text);text-decoration:none}
.logo span{color:var(--accent)}
.right{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
nav a{color:var(--muted);text-decoration:none;font-size:.95rem;margin-left:20px;white-space:nowrap}
nav a:first-child{margin-left:0}
nav a:hover{color:var(--text)}
select#lang{
  font:inherit;font-size:.88rem;color:var(--text);background:var(--surface);
  border:1px solid var(--line);border-radius:8px;padding:5px 8px;cursor:pointer;
}

.hero{padding-top:88px;padding-bottom:64px}
.hero h1{font-size:clamp(2rem,5vw,3.1rem);line-height:1.15;letter-spacing:-.03em;font-weight:700;max-width:760px}
.hero p{margin-top:20px;font-size:1.15rem;color:var(--muted);max-width:640px}

.app-hero{padding-top:72px;padding-bottom:56px}
.app-icon{
  width:72px;height:72px;border-radius:18px;background:var(--accent);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:2rem;font-weight:700;margin-bottom:24px;
}
.app-hero h1{font-size:clamp(2.2rem,5vw,3.2rem);letter-spacing:-.03em;line-height:1.1}
.app-hero .tag{font-size:clamp(1.2rem,3vw,1.6rem);font-weight:600;color:var(--accent);margin-top:6px;letter-spacing:-.01em}
.app-hero .meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:16px;color:var(--muted);font-size:.92rem}
.app-hero .intro{margin-top:24px;font-size:1.1rem;color:var(--muted);max-width:660px}
.back{display:inline-block;margin-bottom:28px;font-size:.9rem;color:var(--muted);text-decoration:none}
.back:hover{color:var(--text)}

section{padding:64px 0;border-top:1px solid var(--line)}
h2{font-size:1.6rem;letter-spacing:-.02em;margin-bottom:8px}
.lead{color:var(--muted);margin-bottom:36px;max-width:640px}

.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:28px;display:flex;flex-direction:column}
.card h3{font-size:1.15rem;margin-bottom:4px}
.card p{font-size:.97rem}
.platform{font-size:.82rem;color:var(--muted);margin-bottom:14px}
.card .foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.card .foot a{font-size:.92rem;font-weight:600;text-decoration:none}
.card .foot a:hover{text-decoration:underline}
.badge{display:inline-block;font-size:.78rem;font-weight:600;
  background:var(--accent-soft);color:var(--accent);padding:4px 10px;border-radius:999px}

.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:32px 28px;margin-top:32px}
.features h3{font-size:1.02rem;margin-bottom:6px}
.features h3::before{content:"";display:block;width:28px;height:3px;border-radius:2px;background:var(--accent);margin-bottom:12px}
.features p{color:var(--muted);font-size:.96rem}

.two{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.two .card h2{font-size:1.25rem;margin-bottom:10px}
.two .card p{color:var(--muted)}

.values{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:28px}
.values h3{font-size:1rem;margin-bottom:6px}
.values p{color:var(--muted);font-size:.95rem}

.contact dl{display:grid;grid-template-columns:140px 1fr;gap:12px 24px;max-width:560px}
.contact dt{color:var(--muted)}
.contact a{text-decoration:none}
.contact a:hover{text-decoration:underline}

footer{border-top:1px solid var(--line);padding:32px 0;color:var(--muted);font-size:.88rem}

@media (max-width:600px){
  header .wrap{padding-top:12px;padding-bottom:12px}
  .right{width:100%;justify-content:space-between;gap:12px}
  nav a{margin-left:14px;font-size:.9rem}
  .hero{padding-top:56px;padding-bottom:44px}
  .app-hero{padding-top:48px;padding-bottom:40px}
  .contact dl{grid-template-columns:1fr;gap:2px}
  .contact dd{margin-bottom:12px}
}

.policy{max-width:720px;padding-top:56px;padding-bottom:72px}
.policy .app-name{color:var(--accent);font-weight:600;font-size:1rem;margin-bottom:4px}
.policy h1{font-size:clamp(1.9rem,4.5vw,2.6rem);letter-spacing:-.03em;line-height:1.15}
.policy .updated{color:var(--muted);font-size:.92rem;margin-top:8px;margin-bottom:12px}
.policy h2{font-size:1.2rem;margin-top:36px;margin-bottom:8px}
.policy p{margin-bottom:12px}
.policy p a{font-weight:600;text-decoration:none}