* {
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, sans-serif;
}

body {
  margin: 0;
  height: 100vh;
  background: linear-gradient(135deg, #0ea5e9, #0f766e);
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  background: #ffffff;
  width: 100%;
  max-width: 380px;
  padding: 35px;
  border-radius: 10px;
  box-shadow: 0 15px 40px rgba(0,0,0,0.25);
  text-align: center;
}

.login-card img {
  width: 130px;   /* increase logo size */
  max-width: 100%;
  height: auto;
  margin-bottom: 16px;
}


.login-card h2 {
  margin: 8px 0 4px;
  color: #1f2937;
}

.login-card p {
  margin-bottom: 25px;
  font-size: 14px;
  color: #6b7280;
}

.login-card label {
  display: block;
  text-align: left;
  font-size: 13px;
  margin-bottom: 5px;
  color: #374151;
}

.login-card input {
  width: 100%;
  padding: 12px;
  margin-bottom: 15px;
  border-radius: 6px;
  border: 1px solid #d1d5db;
  font-size: 14px;
}

.login-card input:focus {
  outline: none;
  border-color: #0ea5e9;
}

.login-card button {
  width: 100%;
  padding: 12px;
  background: linear-gradient(135deg, #0ea5e9, #0f766e);
  border: none;
  border-radius: 6px;
  color: #fff;
  font-size: 15px;
  font-weight: bold;
  cursor: pointer;
}

.login-card button:hover {
  opacity: 0.9;
}

.footer-text {
  margin-top: 20px;
  font-size: 12px;
  color: #9ca3af;
}

.error-box {
  background: #fee2e2;
  color: #991b1b;
  padding: 10px;
  border-radius: 6px;
  font-size: 14px;
  margin-bottom: 15px;
  border: 1px solid #fecaca;
}