/**
 * Login page specific styles
 * Extends main.css with login-specific components
 */

/* =============================================================================
   Login Layout
   ============================================================================= */

body.login-page {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

/* =============================================================================
   Login Card
   ============================================================================= */

.login-card {
  background: white;
  border-radius: 1rem;
  box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.1);
  overflow: hidden;
  max-width: 400px;
  width: 100%;
  animation: slideUp 0.5s ease-out;
}

.login-card .card-body {
  padding: 3rem 2rem;
}

/* =============================================================================
   Login Logo
   ============================================================================= */

.logo {
  width: 80px;
  height: 80px;
  margin: 0 auto 2rem;
  background: linear-gradient(135deg, #007bff, #0056b3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0.5rem 1rem rgba(0, 123, 255, 0.3);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.logo:hover {
  transform: scale(1.05);
  box-shadow: 0 0.75rem 1.5rem rgba(0, 123, 255, 0.4);
}

.logo i {
  color: white;
  font-size: 2rem;
}

/* =============================================================================
   Login Form
   ============================================================================= */

.login-form h2 {
  color: #2c3e50;
  font-weight: 700;
  margin-bottom: 0.5rem;
  text-align: center;
}

.login-form .text-muted {
  color: #6c757d !important;
  font-size: 0.95rem;
  margin-bottom: 2rem;
  text-align: center;
}

.login-form .form-label {
  font-weight: 600;
  color: #495057;
  margin-bottom: 0.75rem;
}

.login-form .input-group {
  margin-bottom: 1.5rem;
}

.login-form .input-group-text {
  background: linear-gradient(135deg, #f8f9fa, #e9ecef);
  border: 1px solid #ced4da;
  color: #6c757d;
  min-width: 45px;
  justify-content: center;
}

.login-form .form-control {
  border-left: none;
  padding-left: 0.75rem;
  height: 48px;
  font-size: 1rem;
}

.login-form .form-control:focus {
  border-color: #80bdff;
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* =============================================================================
   Login Button
   ============================================================================= */

.login-btn {
  height: 48px;
  font-size: 1rem;
  font-weight: 600;
  background: linear-gradient(135deg, #007bff, #0056b3);
  border: none;
  border-radius: 0.5rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.login-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0.5rem 1rem rgba(0, 123, 255, 0.3);
}

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

.login-btn:disabled {
  background: #6c757d;
  transform: none;
  box-shadow: none;
  cursor: not-allowed;
}

/* =============================================================================
   Login Animations
   ============================================================================= */

.login-form {
  animation: fadeInUp 0.6s ease-out 0.2s both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* =============================================================================
   Login Error States
   ============================================================================= */

.login-error {
  animation: shake 0.5s ease-in-out;
  border-left: 4px solid #dc3545;
}

@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-5px);
  }
  75% {
    transform: translateX(5px);
  }
}

.form-control.is-invalid {
  border-color: #dc3545;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%23dc3545' viewBox='0 0 12 12'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath d='m6 3v1.5m0 4.5v-1.5'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 1rem 1rem;
}

/* =============================================================================
   Loading States
   ============================================================================= */

.login-btn .fa-spinner {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* =============================================================================
   Responsive Design
   ============================================================================= */

@media (max-width: 576px) {
  .login-container {
    padding: 1rem;
  }

  .login-card .card-body {
    padding: 2rem 1.5rem;
  }

  .logo {
    width: 60px;
    height: 60px;
    margin-bottom: 1.5rem;
  }

  .logo i {
    font-size: 1.5rem;
  }

  .login-form h2 {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .login-card .card-body {
    padding: 1.5rem 1rem;
  }

  .login-form .text-muted {
    font-size: 0.875rem;
  }
}

/* =============================================================================
   Dark Mode Support (for future enhancement)
   ============================================================================= */

@media (prefers-color-scheme: dark) {
  /* Future dark mode styles can be added here */
}

/* =============================================================================
   High Contrast Mode Support
   ============================================================================= */

@media (prefers-contrast: high) {
  .login-card {
    border: 2px solid #000;
  }

  .logo {
    border: 2px solid #fff;
  }

  .form-control {
    border: 2px solid #000;
  }

  .login-btn {
    border: 2px solid #000;
  }
}