:root{
  --bg:#f6f8fb;
  --card:#ffffff;
  --accent:#2c6ef0;
  --muted:#6b7280;
  --maxw:820px;
}
*{box-sizing:border-box}
body{font-family:Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;line-height:1.45;margin:0;background:var(--bg);color:#0f172a}
.wrap{max-width:var(--maxw);margin:0 auto;padding:24px}
.hero{background:linear-gradient(90deg,#eef6ff,transparent);padding:36px 0 18px;border-bottom:1px solid rgba(15,23,42,0.04)}
.hero h1{margin:0 0 6px;font-size:28px}
.hero p{margin:0;color:var(--muted)}
/* site header navigation */
header .hero nav{margin-bottom:12px;font-size:15px}
header .hero nav a{color:var(--accent);text-decoration:none;font-weight:600;padding:6px 8px;border-radius:8px}
header .hero nav a:hover{background:rgba(44,110,240,0.08);text-decoration:none}
header .hero nav a.active{background:var(--accent);color:white}

.card{background:var(--card);padding:18px;border-radius:12px;box-shadow:0 1px 4px rgba(2,6,23,0.04);margin:18px 0}
.card h2{margin-top:0}
.card.small{max-width:420px}
.btn{display:inline-block;background:var(--accent);color:white;padding:10px 14px;border-radius:8px;text-decoration:none}
/* form styles */
.support-form{display:block;margin-top:12px}
.support-form label{display:block;margin:8px 0 6px;font-weight:600}
.support-form input[type="text"],.support-form input[type="email"],.support-form textarea{width:100%;padding:10px;border:1px solid #e6e9ef;border-radius:8px;font-size:14px}
.support-form input[type="text"]:focus,.support-form input[type="email"]:focus,.support-form textarea:focus{outline:none;box-shadow:0 0 0 4px rgba(44,110,240,0.08);border-color:var(--accent)}
.support-form textarea{resize:vertical}
.form-row{display:flex;align-items:center;gap:12px;margin-top:10px}
.muted{color:var(--muted);font-size:13px}
.support-form .btn{border:none;padding:10px 14px;cursor:pointer}
ul{padding-left:1.25rem}
details summary{cursor:pointer;padding:8px 0}
.footer{color:var(--muted);font-size:13px;margin:20px 0}
code{background:#f3f4f6;padding:2px 6px;border-radius:6px;font-size:13px}

@media (max-width:520px){.wrap{padding:16px}.hero h1{font-size:22px}}