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

#loader-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

#loader-container.hide {
  opacity: 0;
  visibility: hidden;
}

.loader-content {
  text-align: center;
}

.logo-text {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 3rem;
  letter-spacing: 2px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.spinner-container {
  position: relative;
  width: 120px;
  height: 120px;
  margin: 0 auto 2rem;
}

.spinner {
  position: absolute;
  width: 100%;
  height: 100%;
  border: 4px solid rgba(102, 126, 234, 0.1);
  border-top-color: #667eea;
  border-radius: 50%;
  animation: spin 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
}

.spinner:nth-child(2) {
  border-top-color: #764ba2;
  animation-delay: -0.4s;
  width: 90%;
  height: 90%;
  top: 5%;
  left: 5%;
}

.spinner:nth-child(3) {
  border-top-color: #f093fb;
  animation-delay: -0.8s;
  width: 80%;
  height: 80%;
  top: 10%;
  left: 10%;
}

.inner-circle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 50%;
  box-shadow: 0 0 30px rgba(102, 126, 234, 0.5);
  animation: loaderPulse 1.5s ease-in-out infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

@keyframes loaderPulse {
  0%,
  100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }

  50% {
    transform: translate(-50%, -50%) scale(1.2);
    opacity: 0.8;
  }
}

.loading-text {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  font-size: 1rem;
  color: #a8b2d1;
  letter-spacing: 3px;
  text-transform: uppercase;
  animation: fadeInOut 2s ease-in-out infinite;
}

@keyframes fadeInOut {
  0%,
  100% {
    opacity: 0.4;
  }

  50% {
    opacity: 1;
  }
}

.progress-bar-container {
  width: 350px;
  height: 3px;
  background: rgba(102, 126, 234, 0.1);
  border-radius: 10px;
  margin-top: 2rem;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
  border-radius: 10px;
  animation: loading 1.5s ease-in-out;
  box-shadow: 0 0 15px rgba(102, 126, 234, 0.7);
}

@keyframes loading {
  0% {
    width: 0%;
  }

  100% {
    width: 100%;
  }
}

/* Main content styling */
#main-content {
  opacity: 0;
  transition: opacity 0.6s ease;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  padding: 3rem;
  min-height: 100vh;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

#main-content.show {
  opacity: 1;
}

.welcome-text {
  text-align: center;
  font-size: 2.5rem;
  color: #1a1a2e;
  margin-top: 10rem;
}