:root {
  --bg: #0f1117;
  --card: #171a23;
  --card2: #1d2230;
  --text: #f4f7fb;
  --muted: #aeb7c5;
  --line: rgba(255,255,255,.10);
  --accent: #6ee7b7;
  --accent2: #22c55e;
  --bad: #fb7185;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(110,231,183,.12), transparent 35%),
    radial-gradient(circle at bottom right, rgba(34,197,94,.10), transparent 30%),
    var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.wrap {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto;
  padding: 42px 0;
}

.hero { margin-bottom: 22px; }

.badge {
  display: inline-flex;
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--accent);
  background: rgba(110,231,183,.08);
  font-size: 14px;
  font-weight: 700;
}

h1 {
  margin: 18px 0 12px;
  font-size: clamp(32px, 6vw, 52px);
  line-height: 1.04;
  letter-spacing: -0.04em;
}

h2 {
  margin: 0 0 10px;
  font-size: 22px;
}

p {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.58;
}

.card,
.note {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(180deg, var(--card), var(--card2));
  box-shadow: 0 20px 70px rgba(0,0,0,.25);
}

.card { padding: 24px; }
.note { margin-top: 18px; padding: 22px; }

form {
  display: grid;
  gap: 16px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--text);
  font-weight: 700;
}

input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 13px 14px;
  background: rgba(255,255,255,.055);
  color: var(--text);
  outline: none;
  font: inherit;
}

input::placeholder {
  color: rgba(174,183,197,.65);
}

input:focus {
  border-color: rgba(110,231,183,.65);
  box-shadow: 0 0 0 4px rgba(110,231,183,.10);
}

.hint {
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
}

.field-status {
  font-size: 14px;
  font-weight: 700;
}

.field-status.muted { color: var(--muted); }
.field-status.ok { color: var(--accent); }
.field-status.bad { color: var(--bad); }

.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 48px;
  padding: 0 18px;
  border: 0;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #052e1b;
  font-weight: 900;
  font-size: 16px;
  text-decoration: none;
  cursor: pointer;
}

.btn:hover { filter: brightness(1.05); }

.btn:disabled {
  opacity: .45;
  cursor: not-allowed;
  filter: grayscale(.4);
}

.hp {
  position: absolute;
  left: -9999px;
  opacity: 0;
}

@media (max-width: 540px) {
  .wrap {
    width: min(100% - 22px, 760px);
    padding: 24px 0;
  }

  .card,
  .note {
    border-radius: 18px;
    padding: 18px;
  }
}