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

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: Verdana, Arial, sans-serif;
  background: linear-gradient(135deg, #050505 0%, #1a1a2e 100%);
  padding: 20px;
}

.login-container {
  width: 100%;
  max-width: 480px;
  flex: 1;
  display: flex;
  align-items: center;
}

.login-card {
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  padding: 32px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  width: 100%;
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.login-header h1 {
  font-size: 1.8rem;
  margin-bottom: 8px;
  background: linear-gradient(135deg, #fff, #2d6cdf);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.login-header p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

.alert {
  padding: 12px 16px;
  border-radius: 12px;
  margin-bottom: 20px;
  font-size: 0.9rem;
}

.alert-error {
  background: rgba(220, 53, 69, 0.2);
  border: 1px solid rgba(220, 53, 69, 0.5);
  color: #ff6b6b;
}

.alert-success {
  background: rgba(40, 167, 69, 0.2);
  border: 1px solid rgba(40, 167, 69, 0.5);
  color: #51cf66;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.form-group label {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
  font-weight: 500;
}

.form-group input {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  padding: 12px 16px;
  color: #fff;
  font-size: 0.95rem;
}

.form-group input:focus {
  outline: none;
  border-color: #2d6cdf;
}

.btn-login {
  background: linear-gradient(135deg, #2d6cdf, #1a4fbf);
  border: none;
  border-radius: 12px;
  padding: 14px 24px;
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  transition: all 0.3s ease;
  margin-top: 10px;
}

.btn-login:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(45, 108, 223, 0.4);
}

.action-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 24px;
}

.btn-register {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 20px;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  background: linear-gradient(135deg, #2d6cdf, #1a4fbf);
  color: white;
  transition: all 0.3s ease;
}

.btn-register:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(45, 108, 223, 0.4);
}

.btn-guest {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 20px;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.05);
  color: white;
  transition: all 0.3s ease;
}

.btn-guest:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.btn-forgot {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 20px;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.03);
  color: rgba(255, 255, 255, 0.7);
  transition: all 0.3s ease;
  text-decoration: none;
}

.btn-forgot:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
  color: #fff;
}

.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  padding: 32px;
  max-width: 480px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 28px;
  color: rgba(255, 255, 255, 0.6);
  cursor: pointer;
}

.modal-close:hover {
  color: #fff;
}

.modal-buttons {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.btn-cancel {
  flex: 1;
  padding: 12px;
  border-radius: 12px;
  border: none;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  cursor: pointer;
}

.modal-btn-primary {
  flex: 1;
  padding: 12px;
  border-radius: 12px;
  border: none;
  background: linear-gradient(135deg, #2d6cdf, #1a4fbf);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

footer {
  margin-top: auto;
}