* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: #0a0a0a;
  color: #e0e0e0;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.card {
  background: #1a1a1a;
  border: 1px solid #2a2a2a;
  border-radius: 16px;
  padding: 40px 32px;
  width: 100%;
  max-width: 360px;
}

.card h1 {
  font-size: 24px;
  font-weight: 600;
  text-align: center;
  margin-bottom: 8px;
}

.subtitle {
  text-align: center;
  color: #888;
  font-size: 14px;
  margin-bottom: 32px;
}

.card label {
  display: block;
  font-size: 13px;
  color: #999;
  margin-bottom: 6px;
  margin-top: 16px;
}

.card input {
  width: 100%;
  padding: 12px 14px;
  background: #111;
  border: 1px solid #333;
  border-radius: 10px;
  color: #fff;
  font-size: 16px;
  outline: none;
}

.card input:focus { border-color: #555; }

.card button {
  width: 100%;
  margin-top: 24px;
  padding: 14px;
  background: #fff;
  color: #000;
  border: none;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
}

.card button:active { opacity: 0.7; }

.error {
  background: #2a1515;
  border: 1px solid #4a2020;
  color: #ff6b6b;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 8px;
}