:root { --fg:#111; --muted:#555; --bg:#fafafa; --brand:#0f62fe; }
*{box-sizing:border-box} body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial; color:var(--fg); background:var(--bg)}
.app{min-height:100vh;display:flex;flex-direction:column}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;background:#fff;position:sticky;top:0;border-bottom:1px solid #eee;z-index:10}
.brand{display:flex;align-items:center;gap:12px}
.logo.big{height:64px;width:auto}
.nav nav{display:flex;gap:14px;flex-wrap:wrap}
.nav a{color:var(--fg);text-decoration:none;padding:6px 10px;border-radius:10px}
.nav a:hover{background:#f1f1f1}
main{flex:1;width:min(1100px,92%);margin:24px auto}
.footer{padding:16px;text-align:center;color:var(--muted)}
.hero{padding:40px;background:#fff;border:1px solid #eee;border-radius:16px}
.cta-row{display:flex;gap:12px;margin:18px 0}
.btn{display:inline-block;padding:10px 14px;border-radius:10px;background:var(--brand);color:#fff;text-decoration:none;border:none;cursor:pointer}
.btn.ghost{background:#fff;color:var(--brand);border:1px solid var(--brand)}
.form{display:grid;gap:12px;max-width:720px}
.card{background:#fff;border:1px solid #eee;border-radius:12px;padding:14px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.row{display:flex;justify-content:space-between;align-items:center}
img{max-width:100%;display:block}
input,textarea{padding:10px;border-radius:10px;border:1px solid #ddd;font:inherit}
.hint{color:var(--muted)} .error{color:#c00}