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

body {
    background: radial-gradient(circle, #002f72, #00194a);
    font-family: 'Arial', sans-serif;
    color: white;
    line-height: 1.6;
    min-height: 100vh;
}

/* Back to home button */
.back-home {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 1000;
}

.home-btn {
    background: linear-gradient(135deg, #7FB3FF, #4A90E2);
    color: white;
    padding: 12px 20px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    display: inline-block;
}

.home-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
    background: linear-gradient(135deg, #4A90E2, #7FB3FF);
}

/* Header styling */
header {
    text-align: center;
    padding: 80px 20px 40px;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 30px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    color: #f0f0f0;
}

.profile-pic {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 5px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    object-fit: cover;
    margin: 10px 0 0 0;
}

/* Main content */
.trainer-info {
    max-width: 900px;
    margin: -10px auto 0 auto;
    padding: 20px;
}

.intro-section {
    text-align: center;
    margin-bottom: 40px;
}

.intro-section h2 {
    font-size: 2rem;
    color: #7FB3FF;
    margin-bottom: 8px;
    margin-top: 0px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.title {
    font-size: 1.2rem;
    color: #dcdcdc;
    font-style: italic;
    margin-bottom: 20px;
}

/* About content cards */
.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.info-card {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 30px;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.3);
}

.info-card h3 {
    font-size: 1.3rem;
    color: #7FB3FF;
    margin-bottom: 15px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.info-card p {
    color: #f0f0f0;
    font-size: 1rem;
    line-height: 1.7;
}

/* Contact section */
.contact-section {
    text-align: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 25px;
    padding: 40px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(15px);
}

.contact-section h3 {
    font-size: 1.5rem;
    color: #f0f0f0;
    margin-bottom: 30px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.contact-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.register-btn, .whatsapp-btn {
    background: linear-gradient(135deg, #7FB3FF, #4A90E2);
    color: white;
    padding: 15px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    display: inline-block;
}

.whatsapp-btn {
    background: linear-gradient(135deg, #25D366, #128C7E);
}

.register-btn:hover, .whatsapp-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.register-btn:hover {
    background: linear-gradient(135deg, #4A90E2, #7FB3FF);
}

.whatsapp-btn:hover {
    background: linear-gradient(135deg, #128C7E, #25D366);
}

/* Responsive design */
@media (max-width: 768px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .register-btn, .whatsapp-btn {
        width: 100%;
        max-width: 300px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .profile-pic {
        width: 150px;
        height: 150px;
    }
}