/* --- Global Styles --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --primary-color: #0b2545; /* Deep Navy Blue */
    --accent-color: #138a8a; /* Fresh Teal */
    --light-bg: #f8f9fa;
    --text-color: #333;
}

body {
    color: var(--text-color);
    line-height: 1.6;
}

/* --- Header & Navigation --- */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    background-color: #ffffff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo h2 {
    color: var(--primary-color);
    font-size: 1.8rem;
}

.logo h2 span {
    color: var(--accent-color);
}

.logo p {
    font-size: 0.8rem;
    color: #666;
    letter-spacing: 1px;
}

nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 2rem;
}

nav a {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 600;
    transition: color 0.3s ease;
}

nav a:hover {
    color: var(--accent-color);
}

.btn-primary {
    background-color: var(--accent-color);
    color: #ffffff;
    padding: 0.6rem 1.2rem;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.btn-primary:hover {
    background-color: #0f6e6e;
    color: #ffffff;
}

/* --- Hero Section --- */
.hero {
    /* Replace the URL with an actual image of your clinic or a happy patient */
    background: linear-gradient(rgba(11, 37, 69, 0.8), rgba(11, 37, 69, 0.8)), url('https://images.unsplash.com/photo-1606811841689-23dfddce3e95?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover;
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #ffffff;
    padding: 0 5%;
}

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

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

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* --- Services Section --- */
.services {
    padding: 5rem 5%;
    background-color: var(--light-bg);
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    color: var(--primary-color);
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

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

.card {
    background: #ffffff;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
    border-bottom: 4px solid transparent;
}

.card:hover {
    transform: translateY(-10px);
    border-bottom: 4px solid var(--accent-color);
}

.card i {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

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

/* --- Footer --- */
footer {
    background-color: var(--primary-color);
    color: #ffffff;
    padding: 3rem 5% 1rem 5%;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 2rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 2rem;
}

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

.footer-content p {
    margin-bottom: 0.5rem;
}

.footer-content i {
    margin-right: 10px;
    color: var(--accent-color);
}

.copyright {
    text-align: center;
    font-size: 0.9rem;
    color: #aaaaaa;
}

/* --- Responsive Mobile Tweaks --- */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 1rem;
    }
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    .hero-content h1 {
        font-size: 2.5rem;
    }
}
/* --- Meet the Doctors --- */
.doctors {
    padding: 5rem 5%;
    background-color: #ffffff;
}

.doctor-grid {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    margin-top: 3rem;
}

.doctor-card {
    max-width: 350px;
    background: var(--light-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
    text-align: center;
    transition: 0.3s;
}

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

.doc-img img {
    width: 100%;
    height: auto;
    display: block;
}

.doc-info {
    padding: 1.5rem;
}

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

.doc-info .specialty {
    color: var(--accent-color);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

/* --- Floating WhatsApp Button --- */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25d366;
    color: white;
    padding: 12px 25px;
    border-radius: 50px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    z-index: 1000;
    transition: 0.3s;
}

.whatsapp-float:hover {
    background-color: #128c7e;
    transform: scale(1.05);
    color: white;
}

.whatsapp-float i {
    font-size: 1.5rem;
}

/* Hide text on very small mobile screens to keep it a simple circle */
@media (max-width: 480px) {
    .whatsapp-float span {
        display: none;
    }
    .whatsapp-float {
        padding: 15px;
        bottom: 20px;
        right: 20px;
    }
}