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

body {
  font-family: "Inter", sans-serif;
  height: 100vh;
  display: flex;
  background: #f8fafc;
}

.main-container {
  width: 100%;
  display: flex;
  min-height: 100vh;
}

/* Sección de Imagen/Branding */
.image-section {
  flex: 1;
  background: #00d3fd;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  position: relative;
  overflow: hidden;
}

.image-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="1.5" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="80" r="2.5" fill="rgba(255,255,255,0.1)"/><circle cx="70" cy="15" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="15" cy="70" r="1.5" fill="rgba(255,255,255,0.1)"/></svg>')
    repeat;
  opacity: 0.3;
  animation: float 20s ease-in-out infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

.image-content {
  text-align: center;
  max-width: 400px;
  padding: 40px;
  position: relative;
  z-index: 1;
}

.logo-icon {
  width: 100px;
  height: 100px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.logo-icon:hover {
  transform: scale(1.05);
}

.logo-icon svg {
  width: 50px;
  height: 50px;
  fill: white;
}

.company-name {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.system-title {
  font-size: 18px;
  font-weight: 400;
  margin-bottom: 32px;
  opacity: 0.9;
}

.features {
  text-align: left;
  font-size: 16px;
  line-height: 1.8;
  opacity: 0.9;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 24px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.features .feature-item {
  display: flex;
  align-items: center;
  margin-bottom: 12px;
}

.features .feature-item:last-child {
  margin-bottom: 0;
}

.features .checkmark {
  color: #48bb78;
  margin-right: 12px;
  font-size: 18px;
}

/* Sección de Login */
.login-section {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: white;
  padding: 40px;
}

.login-content {
  width: 100%;
  max-width: 400px;
}

.login-header {
  text-align: center;
  margin-bottom: 40px;
}

.login-title {
  font-size: 32px;
  font-weight: 700;
  color: #1a202c;
  margin-bottom: 8px;
  background: linear-gradient(135deg, #667eea, #764ba2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-subtitle {
  font-size: 16px;
  color: #718096;
  font-weight: 400;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: #374151;
  margin-bottom: 8px;
}

.form-group input {
  width: 100%;
  padding: 16px 20px;
  border: 2px solid #e2e8f0;
  border-radius: 12px;
  font-size: 16px;
  background: #f8fafc;
  transition: all 0.3s ease;
  color: #1a202c;
}

.form-group input:focus {
  outline: none;
  border-color: #667eea;
  background: white;
  box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
  transform: translateY(-1px);
}

.form-group input:valid {
  border-color: #48bb78;
}

.login-btn {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  margin-bottom: 20px;
}

.login-btn::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;
}

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

.login-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(102, 126, 234, 0.4);
}

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

.login-btn:disabled {
  background: #a0aec0;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 1s linear infinite;
  margin-right: 8px;
}

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

#mensaje {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 14px;
  font-weight: 500;
  display: none;
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

#mensaje.error {
  background: linear-gradient(135deg, #fed7d7, #feb2b2);
  color: #c53030;
  border: 1px solid #fca5a5;
}

#mensaje.success {
  background: linear-gradient(135deg, #c6f6d5, #9ae6b4);
  color: #2f855a;
  border: 1px solid #68d391;
}

.links-container {
  text-align: center;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid #e2e8f0;
}

.auth-link {
  color: #667eea;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.3s ease;
}

.auth-link:hover {
  color: #764ba2;
  text-decoration: underline;
}

.separator {
  margin: 0 16px;
  color: #a0aec0;
}

/* Responsive */
@media (max-width: 768px) {
  .main-container {
    flex-direction: column;
  }

  .image-section {
    flex: none;
    min-height: 300px;
    padding: 20px;
  }

  .image-content {
    padding: 20px;
    max-width: none;
  }

  .company-name {
    font-size: 24px;
  }

  .system-title {
    font-size: 16px;
  }

  .features {
    font-size: 14px;
    padding: 20px;
  }

  .login-section {
    padding: 30px 20px;
  }

  .login-title {
    font-size: 28px;
  }
}

@media (max-width: 480px) {
  .image-section {
    min-height: 250px;
  }

  .logo-icon {
    width: 80px;
    height: 80px;
  }

  .logo-icon svg {
    width: 40px;
    height: 40px;
  }

  .company-name {
    font-size: 20px;
  }

  .login-title {
    font-size: 24px;
  }

  .form-group input {
    padding: 14px 16px;
  }

  .login-btn {
    padding: 14px;
  }
}