/* Shared styles for login/register/password-change pages */

.login-container {
  min-height: calc(100vh - 70px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 2rem;
  background: linear-gradient(135deg, #0f1117 0%, #1a1d2e 50%, #0f1117 100%);
  position: relative;
  overflow: hidden;
}

.login-container::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 30%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 70% 70%, rgba(0, 191, 255, 0.08) 0%, transparent 50%);
  animation: gradientMove 15s ease-in-out infinite;
}

@keyframes gradientMove {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(-2%, -2%) rotate(180deg); }
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: linear-gradient(145deg, rgba(30, 34, 53, 0.95), rgba(37, 40, 64, 0.95));
  border: 1px solid rgba(45, 49, 72, 0.8);
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5),
              0 0 40px rgba(139, 92, 246, 0.1),
              inset 0 1px 0 rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  animation: cardFadeIn 0.6s ease-out;
  position: relative;
  z-index: 1;
}

@keyframes cardFadeIn {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.login-header {
  text-align: center;
  padding: 2.5rem 2rem 1.5rem;
  border-bottom: 1px solid rgba(45, 49, 72, 0.6);
  background: linear-gradient(180deg, rgba(37, 40, 64, 0.5) 0%, rgba(30, 34, 53, 0.5) 100%);
  border-radius: 20px 20px 0 0;
}

.logo-icon {
  font-size: 3rem;
  margin-bottom: 0.5rem;
  animation: iconBounce 2s ease-in-out infinite;
}

@keyframes iconBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

.login-header h4 {
  color: #e2e8f0;
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
  letter-spacing: 0.5px;
}

.subtitle {
  color: #818cf8;
  font-size: 0.875rem;
  font-weight: 500;
  margin: 0;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.login-body {
  padding: 2rem;
}

.login-form {
  animation: formSlideIn 0.5s ease-out 0.2s both;
}

@keyframes formSlideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

.form-label {
  color: #cbd5e1;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.label-icon {
  font-size: 1rem;
}

.form-control {
  background: rgba(37, 40, 64, 0.8);
  border: 2px solid rgba(45, 49, 72, 0.8);
  border-radius: 12px;
  color: #e2e8f0;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  transition: transform 200ms ease-out, box-shadow 200ms ease-out;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
  width: 100% !important;
  box-sizing: border-box;
}

.login-form input[type="text"],
.login-form input[type="password"] {
  width: 100% !important;
  box-sizing: border-box;
}

.form-control:focus {
  background: rgba(45, 49, 84, 0.9);
  border-color: #818cf8;
  color: #e2e8f0;
  box-shadow: 0 0 0 4px rgba(129, 140, 248, 0.15),
              inset 0 2px 4px rgba(0, 0, 0, 0.2);
  transform: translateY(-2px);
}

.form-control::placeholder {
  color: #64748b;
}

.error-alert {
  background: linear-gradient(135deg, rgba(220, 38, 38, 0.2), rgba(185, 28, 28, 0.15));
  border: 1px solid rgba(239, 68, 68, 0.4);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: #fca5a5;
  animation: errorShake 0.5s ease-out;
}

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

.error-icon {
  font-size: 1.25rem;
}

.warning-alert {
  background: linear-gradient(135deg, rgba(234, 179, 8, 0.15), rgba(202, 138, 4, 0.1));
  border: 1px solid rgba(234, 179, 8, 0.4);
  border-radius: 12px;
  padding: 0.875rem 1.25rem;
  margin-bottom: 1.5rem;
  color: #fde047;
}

.form-text {
  color: #64748b;
  font-size: 0.75rem;
  margin-top: 0.375rem;
  display: block;
}

.btn-login {
  width: 100%;
  background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 50%, #6d28d9 100%);
  border: none;
  border-radius: 12px;
  padding: 1rem 1.5rem;
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: transform 200ms ease-out, box-shadow 200ms ease-out;
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4),
              0 2px 6px rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  position: relative;
  overflow: hidden;
}

.btn-login::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.btn-login:hover {
  background: linear-gradient(135deg, #a78bfa 0%, #8b5cf6 50%, #7c3aed 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(139, 92, 246, 0.5),
              0 4px 10px rgba(0, 0, 0, 0.3);
}

.btn-login:hover::before {
  left: 100%;
}

.btn-login:active {
  transform: translateY(0) scale(0.98);
}

.btn-text {
  font-size: 1rem;
}

.btn-icon {
  font-size: 1.25rem;
  transition: transform 0.3s ease;
}

.btn-login:hover .btn-icon {
  transform: translateX(4px);
}

.login-footer {
  margin-top: 2rem;
  text-align: center;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(45, 49, 72, 0.4);
}

.footer-text {
  color: #64748b;
  font-size: 0.875rem;
  margin: 0;
}

.footer-text a {
  color: #818cf8;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

.footer-text a:hover {
  color: #a78bfa;
  text-decoration: underline;
}

.btn-register-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 50%, #6d28d9 100%);
  border: none;
  border-radius: 10px;
  padding: 0.75rem 1.5rem;
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: transform 200ms ease-out, box-shadow 200ms ease-out;
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.4),
              0 2px 4px rgba(0, 0, 0, 0.2);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn-register-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.btn-register-link:hover {
  background: linear-gradient(135deg, #a78bfa 0%, #8b5cf6 50%, #7c3aed 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(139, 92, 246, 0.5),
              0 4px 8px rgba(0, 0, 0, 0.3);
  color: #fff;
  text-decoration: none;
}

.btn-register-link:hover::before {
  left: 100%;
}

.btn-register-link:active {
  transform: translateY(0) scale(0.98);
}

.btn-register-link .btn-icon {
  font-size: 1rem;
  transition: transform 0.3s ease;
}

.btn-register-link:hover .btn-icon {
  transform: translateX(4px);
}

@media (max-width: 768px) {
  .login-card {
    border-radius: 16px;
  }

  .login-header {
    padding: 2rem 1.5rem 1.25rem;
  }

  .login-body {
    padding: 1.5rem;
  }

  .logo-icon {
    font-size: 2.5rem;
  }

  .login-header h4 {
    font-size: 1.25rem;
  }
}