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

body {
  background: #0f1117;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-wrapper {
  width: 100%;
  max-width: 420px;
  padding: 20px;
}

.login-box {
  background: #1a1d27;
  border: 1px solid #2a2d3e;
  border-radius: 16px;
  padding: 48px 40px;
}

.logo {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  text-align: center;
  margin-bottom: 6px;
  letter-spacing: -1px;
}

.logo span { color: #f5c518; }

.subtitle {
  text-align: center;
  color: #6b7280;
  font-size: 13px;
  margin-bottom: 36px;
  letter-spacing: 0.5px;
}

.input-group {
  margin-bottom: 20px;
}

.input-group label {
  display: block;
  color: #9ca3af;
  font-size: 13px;
  margin-bottom: 8px;
}

.input-group input {
  width: 100%;
  background: #0f1117;
  border: 1px solid #2a2d3e;
  border-radius: 8px;
  padding: 12px 16px;
  color: #fff;
  font-size: 15px;
  transition: border-color 0.2s;
  outline: none;
}

.input-group input:focus {
  border-color: #f5c518;
}

.error-msg {
  color: #ef4444;
  font-size: 13px;
  min-height: 20px;
  margin-bottom: 16px;
  text-align: center;
}

button[type="submit"] {
  width: 100%;
  background: #f5c518;
  color: #0f1117;
  border: none;
  border-radius: 8px;
  padding: 14px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}

button[type="submit"]:hover { background: #e6b800; }
button[type="submit"]:active { transform: scale(0.98); }
button[type="submit"]:disabled { opacity: 0.6; cursor: not-allowed; }