body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: linear-gradient(135deg, #f0f4ff 0%, #e6e9ff 100%);
  margin: 0;
  padding: 20px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

header {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 20px;
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  margin-bottom: 20px;
}

.logo {
  width: 60px;
  height: 60px;
  border-radius: 8px;
}

h1 {
  font-size: 1.8rem;
  color: #1a2a44;
  margin: 0;
}

h2 {
  font-size: 1.5rem;
  color: #1a2a44;
  margin-bottom: 15px;
}

.login-container {
  background: #ffffff;
  padding: 30px;
  border-radius: 16px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
  max-width: 400px;
  width: 100%;
  text-align: center;
  animation: fadeIn 0.5s ease;
}

input {
  padding: 12px;
  margin: 10px 0;
  width: 100%;
  border: 1px solid #e0e4ff;
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

input:focus {
  outline: none;
  border-color: #4f75ff;
}

button {
  padding: 12px 24px;
  background: #4f75ff;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.2s ease;
}

button:hover {
  background: #3b5bff;
  transform: translateY(-2px);
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 1000px;
  width: 100%;
}

.timetable {
  background: #ffffff;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.lesson {
  padding: 15px;
  margin: 10px 0;
  background: #ffd700;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.lesson:hover {
  transform: translateY(-3px);
}

.lesson.break {
  background: #ffcc00;
  cursor: default;
}

.info-panel {
  background: #ffffff;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.profile-img {
  width: 150px;
  height: 150px;
  border-radius: 10px;
  margin: 10px 0;
}

.hidden {
  display: none;
}

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

@media (max-width: 800px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  .timetable, .info-panel {
    padding: 15px;
  }
}