/* ============================================================================
   LOGIN PAGE STYLES
   ============================================================================ */

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  font-family: var(--font-sans);
}

.login-container {
  position: relative;
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

.login-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 0;
}

.bg-shape {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  animation: float 20s infinite ease-in-out;
}

.shape-1 {
  width: 300px;
  height: 300px;
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.shape-2 {
  width: 200px;
  height: 200px;
  top: 60%;
  right: 15%;
  animation-delay: 5s;
}

.shape-3 {
  width: 250px;
  height: 250px;
  bottom: 10%;
  left: 50%;
  animation-delay: 10s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-30px) rotate(180deg);
  }
}

.login-card {
  position: relative;
  z-index: 1;
  background: white;
  border-radius: var(--radius-2xl);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  width: 100%;
  max-width: 480px;
  overflow: hidden;
}

.login-header {
  text-align: center;
  padding: var(--space-8) var(--space-6) var(--space-6);
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.logo-large {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-4);
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}

.login-header h1 {
  font-size: 1.875rem;
  font-weight: 700;
  margin-bottom: var(--space-2);
  color: white;
}

.login-header p {
  font-size: 0.875rem;
  opacity: 0.9;
  margin: 0;
  color: white;
}

.login-form {
  padding: var(--space-6);
}

.alert {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.875rem;
}

.alert-error {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--error);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.password-input-wrapper {
  position: relative;
}

.password-toggle {
  position: absolute;
  right: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--gray-400);
  cursor: pointer;
  padding: var(--space-2);
  transition: color var(--transition-base);
}

.password-toggle:hover {
  color: var(--gray-600);
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--gray-700);
}

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

.login-footer {
  padding: var(--space-6);
  background: var(--gray-50);
  border-top: 1px solid var(--gray-200);
}

.demo-credentials {
  text-align: center;
}

.demo-credentials p {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: var(--space-3);
}

.credentials-grid {
  display: grid;
  gap: var(--space-3);
}

.credential-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3);
  background: white;
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
}

.credential-item code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--gray-100);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  color: var(--gray-700);
}

.role-badge {
  font-size: 0.75rem;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-full);
  font-weight: 500;
}

/* Dark mode support for login page */
body.dark-mode {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

body.dark-mode .login-card {
  background: var(--gray-800);
}

body.dark-mode .login-form {
  background: var(--gray-800);
}

body.dark-mode .login-footer {
  background: var(--gray-900);
  border-top-color: var(--gray-700);
}

body.dark-mode .credential-item {
  background: var(--gray-800);
  border-color: var(--gray-700);
}

body.dark-mode .credential-item code {
  background: var(--gray-700);
  color: var(--gray-300);
}

body.dark-mode .demo-credentials p {
  color: var(--gray-300);
}

body.dark-mode .form-input {
  background: var(--gray-700);
  border-color: var(--gray-600);
  color: var(--gray-100);
}

body.dark-mode .form-label {
  color: var(--gray-300);
}

body.dark-mode .checkbox-label {
  color: var(--gray-300);
}

/* Shake animation for login errors */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-10px); }
  20%, 40%, 60%, 80% { transform: translateX(10px); }
}

.shake {
  animation: shake 0.5s;
}

/* Responsive */
@media (max-width: 768px) {
  .login-card {
    max-width: 100%;
  }
  
  .login-header {
    padding: var(--space-6) var(--space-4) var(--space-4);
  }
  
  .logo-large {
    width: 60px;
    height: 60px;
    font-size: 2rem;
  }
  
  .login-header h1 {
    font-size: 1.5rem;
  }
}