/* Reset default browser styles */
body, h1, h2, h3, p, ul, li, input, button {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
}

/* Page background */
body {
  background-color: #f9fafc;
  color: #333;
  line-height: 1.6;
}

/* Login container */
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: linear-gradient(to right, #1a73e8, #4285f4);
  padding: 20px;
}

/* Login box */
.login-box {
  background: #fff;
  padding: 40px 30px;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  width: 100%;
  max-width: 420px;
}

/* Title */
.login-box h1 {
  font-size: 28px;
  font-weight: 700;
  color: #1a73e8;
  text-align: center;
  margin-bottom: 10px;
}

/* Subtitle */
.login-box p {
  text-align: center;
  margin-bottom: 20px;
  color: #555;
}

/* Tabs */
.tabs {
  display: flex;
  justify-content: space-between;
  margin-bottom: 20px;
}

.tab-link {
  flex: 1;
  padding: 10px;
  background: #f1f3f4;
  border: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  color: #333;
  transition: background 0.3s;
}

.tab-link.active {
  background: #1a73e8;
  color: #fff;
  border-radius: 6px;
}

/* Form groups */
.input-group {
  margin-bottom: 15px;
}

.input-group label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  color: #333;
}

.input-group input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  outline: none;
  font-size: 15px;
  transition: border 0.3s;
}

.input-group input:focus {
  border-color: #1a73e8;
}

/* Buttons */
.login-btn {
  width: 100%;
  padding: 12px;
  background: #1a73e8;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s;
}

.login-btn:hover {
  background: #1669c1;
}

/* Error messages */
.error-message {
  color: red;
  font-size: 14px;
  margin-bottom: 15px;
  text-align: center;
}