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

/* Base */
body {
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(to right, #1d976c, #93f9b9);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

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

/* LOGIN BOX */
.login-box {
  background: #fff;
  border-radius: 12px;
  padding: 30px 25px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.login-header {
  text-align: center;
  margin-bottom: 20px;
}

.logo {
  width: 50px;
  margin-bottom: 10px;
}

.login-header h2 {
  font-size: 24px;
  color: #333;
}

.login-header p {
  font-size: 14px;
  color: #666;
}

.tab-switch {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.tab-btn {
  flex: 1;
  padding: 10px;
  background: #f1f1f1;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 500;
  transition: background 0.2s;
}

.tab-btn.active {
  background: #1d976c;
  color: white;
}

.login-form {
  display: none;
}

.login-form.active {
  display: block;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  font-size: 14px;
  color: #333;
  display: block;
  margin-bottom: 6px;
}

.form-group input {
  width: 100%;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 15px;
}

.login-btn {
  width: 100%;
  padding: 12px;
  background: #1d976c;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  margin-top: 10px;
  cursor: pointer;
  transition: background 0.3s;
}

.login-btn:hover {
  background: #15835c;
}

.form-options {
  text-align: right;
  margin-bottom: 10px;
}

.forgot-password {
  font-size: 13px;
  color: #1d976c;
  text-decoration: none;
}

.google-btn {
  width: 100%;
  padding: 12px;
  border: 1px solid #ccc;
  background: white;
  border-radius: 8px;
  font-size: 15px;
  cursor: pointer;
  margin-top: 10px;
  color: #444;
}

.google-btn:hover {
  background: #f9f9f9;
}

.divider {
  text-align: center;
  margin: 16px 0;
  color: #aaa;
  font-size: 14px;
}

.register-link {
  margin-top: 16px;
  font-size: 13px;
  text-align: center;
}

.register-link a {
  color: #1d976c;
  text-decoration: none;
}

@media (max-width: 480px) {
  .login-box {
    padding: 25px 15px;
  }

  .tab-btn {
    font-size: 13px;
    padding: 8px;
  }

  .login-btn,
  .google-btn {
    font-size: 14px;
    padding: 10px;
  }

  .login-header h2 {
    font-size: 20px;
  }

  .login-header p {
    font-size: 13px;
  }

  .form-group input {
    font-size: 14px;
  }
}

@media (min-width: 481px) and (max-width: 768px) {
  .container {
    max-width: 500px;
  }

  .login-box {
    padding: 35px 30px;
  }

  .tab-btn {
    font-size: 15px;
  }

  .login-btn,
  .google-btn {
    font-size: 15px;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .container {
    max-width: 600px;
  }

  .login-box {
    padding: 40px 35px;
  }

  .login-header h2 {
    font-size: 26px;
  }

  .tab-btn {
    font-size: 16px;
  }

  .login-btn,
  .google-btn {
    font-size: 16px;
  }
}

@media (min-width: 1025px) {
  .container {
    max-width: 480px;
  }

  .login-box {
    padding: 45px 40px;
  }
}