* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background-color: #f0f2f5;
    padding: 20px;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
}

h1 {
    text-align: center;
    margin-bottom: 20px;
    color: #333;
}

.days-container {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}

.day-column {
    flex: 1;
    min-width: 180px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    overflow: hidden;
}

.day-header {
    padding: 10px;
    text-align: center;
    font-weight: bold;
    color: white;
}

.monday .day-header { 
    background-color: #f21e07; 
}

.tuesday .day-header { 
    background-color: #f21e07; 
}

.wednesday .day-header { 
    background-color: #f21e07; 
}

.thursday .day-header { 
    background-color: #f21e07; 
}

.friday .day-header { 
    background-color: #f21e07; 
}

.lessons-list {
    padding: 10px;
}

.lesson-card {
    background-color: #f8f9fa;
    margin-bottom: 8px;
    padding: 10px;
    border-radius: 5px;
    border-left: 3px solid #f21e07;
}

.lesson-number {
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 3px;
    font-size: 14px;
}

.lesson-name {
    font-weight: bold;
    margin-bottom: 3px;
    font-size: 14px;
}

.lesson-teacher {
    color: #666;
    font-size: 12px;
}

@media (max-width: 768px) {
    .day-column {
        min-width: 100%;
    }
}