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

body {
   font-family: 'Poppins', sans-serif;
   min-height: 100vh;
   display: flex;
   align-items: center;
   justify-content: center;
   padding: 20px;

   margin-left: 0px;
}

.login-container {
   display: flex;
   align-items: center;
   justify-content: center;
   width: 100%;
   max-width: 500px;
   margin: 0 auto;
}

.login-card {
   background: white;
   border-radius: 24px;
   box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
   padding: 40px;
   width: 100%;
   animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
   from {
      opacity: 0;
      transform: translateY(30px);
   }

   to {
      opacity: 1;
      transform: translateY(0);
   }
}

.login-header {
   text-align: center;
   margin-bottom: 35px;
}

.login-header h1 {
   color: #2d3748;
   font-size: 2rem;
   font-weight: 700;
   margin-bottom: 8px;
   letter-spacing: -0.5px;
}

.login-header p {
   color: #718096;
   font-size: 1rem;
   font-weight: 400;
}

.form-group {
   margin-bottom: 20px;
   position: relative;
}

.form-label {
   display: block;
   color: #4a5568;
   font-weight: 600;
   margin-bottom: 8px;
   font-size: 0.9rem;
}

.form-input {
   width: 100%;
   padding: 14px 16px;
   border: 2px solid #e2e8f0;
   border-radius: 12px;
   font-size: 1rem;
   transition: all 0.3s ease;
   background: #f7fafc;
   font-family: 'Poppins', sans-serif;
}

.form-input:focus {
   outline: none;
   border-color: #333438;
   background: white;
   box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.form-input::placeholder {
   color: #a0aec0;
}

.alert {
   padding: 16px 20px;
   border-radius: 12px;
   margin-bottom: 25px;
   animation: shake 0.5s ease;
   font-size: 0.95rem;
}

@keyframes shake {

   0%,
   100% {
      transform: translateX(0);
   }

   25% {
      transform: translateX(-10px);
   }

   75% {
      transform: translateX(10px);
   }
}

.alert-danger {
   background: #fff5f5;
   border: 2px solid #fc8181;
   color: #c53030;
}

.alert-info {
   background: #ebf8ff;
   border: 2px solid #90cdf4;
   color: #2c5282;
}

.checkbox-container {
   display: flex;
   align-items: center;
   margin-bottom: 25px;
}

.checkbox-container input[type="checkbox"] {
   width: 20px;
   height: 20px;
   margin-right: 10px;
   cursor: pointer;
   accent-color: #333438;
}

.checkbox-container label {
   margin: 0;
   color: #718096;
   font-size: 0.9rem;
   cursor: pointer;
}

.btn-submit {
   width: 100%;
   padding: 16px;
   background: #333438;
   color: white;
   border: none;
   border-radius: 12px;
   font-size: 1rem;
   font-weight: 600;
   cursor: pointer;
   transition: all 0.3s ease;
   box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
   font-family: 'Poppins', sans-serif;
   letter-spacing: 0.5px;
}

.btn-submit:hover {
   transform: translateY(-2px);
   box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
}

.btn-submit:active {
   transform: translateY(0);
}

.logout-link {
   color: #333438;
   text-decoration: none;
   font-weight: 600;
   transition: color 0.3s ease;
}

.logged-in-info {
   text-align: center;
   padding: 16px;
   background: #f0fdf4;
   border: 2px solid #86efac;
   border-radius: 12px;
   color: #166534;
   margin-bottom: 25px;
   font-size: 0.95rem;
}

.login-link-container {
   display: flex;
   align-items: center;
   justify-content: center;
   flex-direction: column;
   gap: 15px;
   margin-top: 25px;
   padding-top: 25px;
   border-top: 2px solid #e2e8f0;
}

.login-link-container p {
   color: #718096;
   font-size: 0.9rem;
   margin: 0;
}

.btn-login {
   color: #333438;
   text-decoration: none;
   font-weight: 600;
   font-size: 0.95rem;
   transition: all 0.3s ease;
   padding: 8px 16px;
   border-radius: 8px;
   background: rgba(102, 126, 234, 0.1);
}

@media (max-width: 768px) {
   body {
      padding: 15px;
   }

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

   .login-header h1 {
      font-size: 1.75rem;
   }

   .login-header p {
      font-size: 0.95rem;
   }

   .form-input {
      padding: 13px 14px;
      font-size: 0.95rem;
   }

   .btn-submit {
      padding: 15px;
      font-size: 0.95rem;
   }
}

@media (max-width: 480px) {
   body {
      padding: 10px;
   }

   .login-container {
      max-width: 100%;
   }

   .login-card {
      padding: 30px 20px;
      border-radius: 20px;
   }

   .login-header {
      margin-bottom: 25px;
   }

   .login-header h1 {
      font-size: 1.5rem;
   }

   .login-header p {
      font-size: 0.9rem;
   }

   .form-group {
      margin-bottom: 18px;
   }

   .form-label {
      font-size: 0.85rem;
      margin-bottom: 6px;
   }

   .form-input {
      padding: 12px 14px;
      font-size: 0.9rem;
   }

   .checkbox-container {
      margin-bottom: 20px;
   }

   .checkbox-container input[type="checkbox"] {
      width: 18px;
      height: 18px;
   }

   .checkbox-container label {
      font-size: 0.85rem;
   }

   .btn-submit {
      padding: 14px;
      font-size: 0.9rem;
   }

   .alert {
      padding: 14px 16px;
      font-size: 0.85rem;
   }

   .logged-in-info {
      padding: 14px;
      font-size: 0.85rem;
   }

   .login-link-container {
      gap: 12px;
      margin-top: 20px;
      padding-top: 20px;
   }

   .login-link-container p {
      font-size: 0.85rem;
   }

   .btn-login {
      font-size: 0.85rem;
      padding: 6px 14px;
   }
}

@media (max-width: 360px) {
   .login-card {
      padding: 25px 15px;
   }

   .login-header h1 {
      font-size: 1.35rem;
   }

   .form-input {
      padding: 11px 12px;
      font-size: 0.85rem;
   }

   .btn-submit {
      padding: 13px;
      font-size: 0.85rem;
   }
}

@media (max-height: 600px) and (orientation: landscape) {
   .login-card {
      padding: 20px;
   }

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

   .login-header h1 {
      font-size: 1.4rem;
      margin-bottom: 5px;
   }

   .login-header p {
      font-size: 0.85rem;
   }

   .form-group {
      margin-bottom: 15px;
   }

   .form-input {
      padding: 10px 12px;
   }

   .btn-submit {
      padding: 12px;
   }

   .login-link-container {
      margin-top: 15px;
      padding-top: 15px;
   }
}