:root {
    --primary-color: #0056b3;
    --secondary-color: #007bff;
    --accent-color: #17a2b8;
    --text-color: #333;
    --light-bg: #f8f9fa;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-bg);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

header {
    background-color: rgba(255, 255, 255, 0.9);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

    header.scrolled {
        background-color: #fff;
    }


.hero {
    height: 87vh;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    animation: slider 20s ease-in-out infinite;
    background-repeat: no-repeat;
}

@keyframes slider {
    0%, 100% {
        background-image: url(https://images.pexels.com/photos/40568/medical-appointment-doctor-healthcare-40568.jpeg?auto=compress&cs=tinysrgb&w=1600);
    }

    25% {
        background-image: url(https://images.pexels.com/photos/3769151/pexels-photo-3769151.jpeg?auto=compress&cs=tinysrgb&w=1600);
    }

    50% {
        background-image: url(https://images.pexels.com/photos/3957987/pexels-photo-3957987.jpeg?auto=compress&cs=tinysrgb&w=1600);
    }

    75% {
        background-image: url(https://images.pexels.com/photos/207601/pexels-photo-207601.jpeg?auto=compress&cs=tinysrgb&w=1600);
    }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 0;
}

.hero-content {
    text-align: center;
    color: #fff;
    z-index: 1;
    max-width: 800px;
    padding: 0 1rem;
}

    .hero-content h1 {
        font-size: 3.5rem;
        margin-bottom: 1rem;
        animation: fadeInDown 1s ease;
    }

    .hero-content p {
        font-size: 1.2rem;
        margin-bottom: 2rem;
        animation: fadeInUp 1s ease 0.5s both;
    }

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--secondary-color);
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

    .btn:hover {
        background-color: var(--primary-color);
        transform: translateY(-3px);
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    }

.section {
    padding: 3rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 4rem;
    font-size: 2.5rem;
    color: var(--primary-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

    .service-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    }

    .service-card img {
        width: 100%;
        height: 200px;
        object-fit: cover;
    }

.service-content {
    padding: 2rem;
}

    .service-content h3 {
        margin-bottom: 1rem;
        color: var(--primary-color);
    }

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
}

.team-member {
    text-align: center;
    transition: var(--transition);
}

    .team-member:hover {
        transform: translateY(-10px);
    }

    .team-member img {
        width: 200px;
        height: 200px;
        border-radius: 50%;
        object-fit: cover;
        margin-bottom: 1.5rem;
        border: 5px solid var(--accent-color);
        transition: var(--transition);
    }

    .team-member:hover img {
        transform: scale(1.1) rotate(5deg);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    }

    .team-member h3 {
        color: var(--primary-color);
        margin-bottom: 0.5rem;
    }

.cta {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.pexels.com/photos/263402/pexels-photo-263402.jpeg?auto=compress&cs=tinysrgb&w=1600') no-repeat center center/cover;
    color: #fff;
    text-align: center;
    padding: 6rem 0;
    position: relative;
}

    .cta h2 {
        font-size: 3rem;
        margin-bottom: 1.5rem;
    }

    .cta p {
        font-size: 1.2rem;
        margin-bottom: 2rem;
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
    }



.social-links {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
}

    .social-links a {
        color: #fff;
        font-size: 1.5rem;
        margin: 0 1rem;
        transition: var(--transition);
    }

        .social-links a:hover {
            color: var(--accent-color);
            transform: translateY(-3px);
        }

.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: var(--secondary-color);
    color: #fff;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    text-decoration: none;
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
}

    .back-to-top.show {
        opacity: 1;
        visibility: visible;
    }

    .back-to-top:hover {
        background-color: var(--primary-color);
        transform: translateY(-3px);
    }

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .cta h2 {
        font-size: 2.5rem;
    }
}