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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #333;
}

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

/* Header */
.header {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    width: 50px;
    height: 50px;
    background: linear-gradient(45deg, #4F46E5, #10B981);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 1.2rem;
}

.nav-brand h1 {
    font-size: 1.2rem;
    color: #333;
}

.nav-brand p {
    font-size: 0.9rem;
    color: #666;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #4F46E5;
}

.btn-nav {
    background: #4F46E5;
    color: white !important;
    padding: 0.5rem 1rem;
    border-radius: 5px;
}

/* WhatsApp Float */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 25px;
    right: 25px;
    background-color: #25D366;
    color: #FFF;
    border-radius: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 100;
    animation: pulse 2s infinite;
    text-decoration: none;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Hero */
.hero {
    background: linear-gradient(135deg, #4F46E5, #10B981);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-primary {
    background: white;
    color: #4F46E5;
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn:hover {
    transform: translateY(-2px);
}

/* Stats */
.stats {
    padding: 4rem 0;
    background: white;
}

.stats .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item h3 {
    font-size: 3rem;
    color: #4F46E5;
    margin-bottom: 0.5rem;
}

/* Subjects */
.subjects {
    padding: 4rem 0;
    background: #f8f9fa;
}

.subjects h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.subjects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.subject-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.subject-card:hover {
    transform: translateY(-5px);
}

.subject-card i {
    font-size: 3rem;
    color: #4F46E5;
    margin-bottom: 1rem;
}

/* Teachers */
.teachers {
    padding: 4rem 0;
    background: white;
}

.teachers h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.teachers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.teacher-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
}

.teacher-avatar {
    width: 80px;
    height: 80px;
    background: linear-gradient(45deg, #4F46E5, #10B981);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
}

/* Pricing */
.pricing {
    padding: 4rem 0;
    background: #f8f9fa;
}

.pricing h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.pricing-table {
    width: 100%;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.pricing-table th,
.pricing-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.pricing-table th {
    background: #4F46E5;
    color: white;
}

.pricing .btn {
    display: block;
    margin: 2rem auto 0;
    width: fit-content;
}

/* Contact */
.contact {
    padding: 4rem 0;
    background: white;
    text-align: center;
}

.contact h2 {
    margin-bottom: 2rem;
    font-size: 2.5rem;
}

.contact-info {
    margin-bottom: 2rem;
}

.contact-info p {
    margin: 1rem 0;
    font-size: 1.1rem;
}

.contact-info i {
    color: #4F46E5;
    margin-right: 0.5rem;
}

/* Footer */
.footer {
    background: #333;
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

/* Responsive */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .footer .container {
        flex-direction: column;
        gap: 1rem;
    }
}