:root {
  --brand: #0894FD;
  --brand-dark: #0672c9;
  --bg: #0b0f14;
  --card: #131a22;
  --line: #222d39;
  --fg: #e7ecf2;
  --muted: #8a97a6;
  color-scheme: dark;
}
* { box-sizing: border-box; }
body {
  margin: 0; min-height: 100vh; font-family: ui-sans-serif, -apple-system, "Segoe UI", system-ui, sans-serif;
  background: radial-gradient(1200px 600px at 50% -10%, #14324d 0%, var(--bg) 55%); color: var(--fg);
  display: flex; flex-direction: column;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 420px; margin: 0 auto; padding: 40px 20px; width: 100%; }
.brand { font-weight: 800; letter-spacing: -0.03em; font-size: 1.4rem; }
.brand span { color: var(--brand); }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 26px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}
h1 { font-size: 1.5rem; margin: 0 0 4px; letter-spacing: -0.02em; }
.sub { color: var(--muted); margin: 0 0 22px; font-size: 0.92rem; }
label { display: block; font-size: 0.82rem; color: var(--muted); margin: 14px 0 6px; }
input {
  width: 100%; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--line);
  background: #0e141b; color: var(--fg); font-size: 1rem; outline: none;
}
input:focus { border-color: var(--brand); }
.hint { font-size: 0.76rem; color: var(--muted); margin-top: 6px; }
button.primary {
  width: 100%; margin-top: 22px; padding: 13px; border: 0; border-radius: 10px; cursor: pointer;
  background: var(--brand); color: #fff; font-size: 1rem; font-weight: 700;
}
button.primary:hover { background: var(--brand-dark); }
button.primary:disabled { opacity: 0.6; cursor: default; }
.msg { margin-top: 16px; font-size: 0.9rem; padding: 10px 12px; border-radius: 10px; display: none; }
.msg.show { display: block; }
.msg.error { background: #3a1720; color: #ffb4b4; border: 1px solid #5b2230; }
.msg.ok { background: #12301f; color: #9be8b4; border: 1px solid #1e4a30; }
.foot { text-align: center; margin-top: 18px; font-size: 0.9rem; color: var(--muted); }
.slug-preview { font-family: ui-monospace, Menlo, monospace; color: var(--brand); font-weight: 700; }
.avail { margin-left: 8px; font-weight: 700; font-size: 0.8rem; }
.avail.checking { color: var(--muted); font-weight: 500; }
.avail.free { color: #2fd27a; }
.avail.taken { color: #ff6b6b; }
.avail.invalid { color: #ffcf7a; font-weight: 500; }
.hero { text-align: center; padding: 60px 20px; }
.hero h1 { font-size: clamp(1.8rem, 6vw, 2.8rem); }
.hero p { color: var(--muted); max-width: 40ch; margin: 12px auto 26px; line-height: 1.6; }
.row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn { padding: 12px 22px; border-radius: 10px; font-weight: 700; border: 1px solid var(--line); }
.btn.solid { background: var(--brand); color: #fff; border-color: var(--brand); }