:root {
  color-scheme: light dark;
}

body {
  margin: 0;
  font-family: "Segoe UI", sans-serif;
  background: #f0f0f0;
  color: #222;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  animation: fadeIn 1s ease-in;
  transition: background 0.3s, color 0.3s;
}

@media (prefers-color-scheme: dark) {
  body {
    background: #121212;
    color: #f0f0f0;
  }
}

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

@keyframes popIn {
  0% {
    transform: scale(0.95);
    opacity: 0;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.home-container {
  text-align: center;
  background: #fff;
  padding: 40px;
  border-radius: 12px;
  width: 90%;
  max-width: 500px;
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
  animation: popIn 0.5s ease-out;
}

@media (prefers-color-scheme: dark) {
  .home-container {
    background: #1e1e1e;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.05);
  }
}

h1 {
  margin-bottom: 20px;
  font-size: 2.2em;
}

p {
  font-size: 1.05em;
  margin-bottom: 30px;
}

.session-form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.session-form input,
.session-form select {
  padding: 10px;
  border-radius: 8px;
  border: 1px solid #888;
  font-size: 1em;
  outline: none;
  background: #fdfdfd;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.session-form input:focus,
.session-form select:focus {
  border-color: #555;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.2);
}

@media (prefers-color-scheme: dark) {
  .session-form input,
  .session-form select {
    background: #222;
    color: #f0f0f0;
    border-color: #666;
  }

  .session-form input:focus,
  .session-form select:focus {
    box-shadow: 0 0 6px rgba(255, 255, 255, 0.2);
  }
}

button {
  padding: 12px;
  font-size: 1em;
  background: #333;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s ease;
}

button:hover {
  background: #555;
}

@media (prefers-color-scheme: dark) {
  button {
    background: #444;
  }

  button:hover {
    background: #666;
  }
}