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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f5f3ff 0%, #e9d5ff 50%, #d8b4fe 100%);
    min-height: 100vh;
    color: #4c1d95;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    text-align: center;
    margin-bottom: 40px;
    padding: 30px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(147, 51, 234, 0.1);
    backdrop-filter: blur(10px);
}

.header h1 {
    font-size: 2.5em;
    color: #7c3aed;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.header p {
    font-size: 1.2em;
    color: #6b21a8;
    font-style: italic;
}

.bootcamp-info {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 25px;
    margin-bottom: 30px;
    box-shadow: 0 10px 30px rgba(147, 51, 234, 0.15);
    border-left: 5px solid #7c3aed;
}

.bootcamp-info h2 {
    color: #4c1d95;
    margin-bottom: 15px;
    font-size: 1.8em;
}

.bootcamp-info p {
    color: #6b21a8;
    line-height: 1.6;
    margin-bottom: 10px;
}

.challenges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.challenge-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 25px;
    box-shadow: 0 10px 30px rgba(147, 51, 234, 0.15);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 300px;
}

.challenge-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #a855f7, #7c3aed, #6b21a8);
}

.challenge-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(147, 51, 234, 0.25);
    border-color: #a855f7;
}

.challenge-icon {
    font-size: 3em;
    text-align: center;
    margin-bottom: 15px;
    color: #7c3aed;
}

.challenge-title {
    font-size: 1.5em;
    color: #4c1d95;
    margin-bottom: 12px;
    text-align: center;
    font-weight: bold;
}

.challenge-description {
    color: #6b21a8;
    line-height: 1.6;
    margin-bottom: 15px;
    text-align: center;
    flex-grow: 1;
}

.challenge-links {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: auto;
}

.challenge-link {
    display: inline-block;
    padding: 12px 25px;
    background: linear-gradient(135deg, #a855f7, #7c3aed);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(147, 51, 234, 0.3);
}

.challenge-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(147, 51, 234, 0.4);
    background: linear-gradient(135deg, #7c3aed, #6b21a8);
}

.footer {
    text-align: center;
    margin-top: 50px;
    padding: 20px;
    color: #6b21a8;
    font-style: italic;
}

.coming-soon {
    background: rgba(255, 255, 255, 0.8);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    margin-top: 30px;
    box-shadow: 0 10px 30px rgba(147, 51, 234, 0.1);
}

.coming-soon h3 {
    color: #7c3aed;
    font-size: 1.5em;
    margin-bottom: 15px;
}

.coming-soon p {
    color: #6b21a8;
    font-style: italic;
}

@media (max-width: 768px) {
    .challenges-grid {
        grid-template-columns: 1fr;
    }
    
    .header h1 {
        font-size: 2em;
    }
}