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

/* Font and background for the entire page */
body {
  font-family: 'Roboto', sans-serif;
  background-color: #e9ecef;
  color: #212529;
  min-height: 100vh;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Dark Mode Styles */
body.dark-mode {
  background-color: #1a1d21;
  color: #e9ecef;
}

/* Login Box Styles */
.login-box {
  background: #fff;
  border-radius: 15px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  width: 100%;
  max-width: 450px;
  margin: 2rem auto;
}

body.dark-mode .login-box {
  background: #2d3338;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
}

.login-box:hover {
  transform: translateY(-5px);
}

/* Form Controls */
.form-control {
  border: 2px solid #e9ecef;
  border-radius: 8px;
  padding: 12px;
  height: auto;
  font-size: 1rem;
  transition: all 0.3s ease;
  background-color: #fff;
  color: #212529;
}

body.dark-mode .form-control {
  background-color: #1a1d21;
  border-color: #40464e;
  color: #e9ecef;
}

.form-control:focus {
  border-color: #007bff;
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.15);
}

body.dark-mode .form-control:focus {
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Custom Checkbox */
.custom-control-input:checked ~ .custom-control-label::before {
  border-color: #007bff;
  background-color: #007bff;
}

.custom-control-label {
  cursor: pointer;
  user-select: none;
}

body.dark-mode .custom-control-label {
  color: #e9ecef;
}

/* Buttons */
.btn {
  border-radius: 8px;
  padding: 12px 20px;
  transition: all 0.3s ease;
  font-weight: 500;
}

.btn-primary {
  background: linear-gradient(45deg, #007bff, #0056b3);
  border: none;
  color: white;
}

.btn-primary:hover {
  background: linear-gradient(45deg, #0056b3, #003d80);
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(0, 123, 255, 0.2);
}

body.dark-mode .btn-primary:hover {
  box-shadow: 0 4px 15px rgba(0, 123, 255, 0.4);
}

.btn-outline-secondary {
  border-color: #e9ecef;
}

body.dark-mode .btn-outline-secondary {
  border-color: #40464e;
  color: #e9ecef;
}

.btn-outline-secondary:hover {
  background-color: #f8f9fa;
  border-color: #007bff;
}

body.dark-mode .btn-outline-secondary:hover {
  background-color: #40464e;
  border-color: #007bff;
}

/* Password Toggle Button */
#togglePassword {
  border-top-right-radius: 8px;
  border-bottom-right-radius: 8px;
  padding: 12px;
  height: 100%;
}

body.dark-mode .input-group-append .btn {
  background-color: #1a1d21;
  color: #e9ecef;
}

/* Links */
a {
  transition: all 0.3s ease;
  text-decoration: none;
  color: #007bff;
}

body.dark-mode a {
  color: #3b89ff;
}

a:hover {
  text-decoration: none;
  color: #0056b3;
}

body.dark-mode a:hover {
  color: #69a3ff;
}

/* Alerts */
.alert {
  border-radius: 8px;
  border: none;
  margin-top: 1rem;
}

.alert-danger {
  background-color: #fff2f2;
  color: #dc3545;
}

body.dark-mode .alert-danger {
  background-color: #2c1f1f;
  color: #ff4d4d;
}

.alert-success {
  background-color: #f2fff5;
  color: #28a745;
}

body.dark-mode .alert-success {
  background-color: #1f2c22;
  color: #4dff77;
}

/* Text Styles */
body.dark-mode h2 {
  color: #e9ecef;
}

body.dark-mode .text-muted {
  color: #8b949e !important;
}

/* Logo Image */
img.rounded-circle {
  border: 3px solid #007bff;
  padding: 3px;
  background: white;
  box-shadow: 0 3px 10px rgba(0, 123, 255, 0.2);
}

body.dark-mode img.rounded-circle {
  background: #2d3338;
  box-shadow: 0 3px 10px rgba(0, 123, 255, 0.4);
}

/* Form Animation */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.login-box {
  animation: fadeIn 0.5s ease-out;
}

/* Responsive Design */
@media (max-width: 576px) {
  .login-box {
    margin: 1rem;
    padding: 1.5rem !important;
  }
  
  .btn-lg {
    padding: 10px 16px;
  }
  
  h2 {
    font-size: 1.75rem;
  }
}

/* Input Group */
.input-group {
  position: relative;
}

.input-group .form-control {
  border-right: none;
  padding-right: 50px;
}

.input-group-append {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  z-index: 4;
}

.input-group-append .btn {
  border-left: none;
  background: white;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Container Adjustments */
.min-vh-100 {
  padding: 2rem 0;
}