:root {
    /* Colors */
    --primary-color: #0077b6; /* Medical Blue */
    --secondary-color: #48cae4; /* Lighter Blue */
    --accent-color: #90e0ef; /* Very Light Blue */
    --soft-green: #d8f3dc; /* Soft Green mentioned in requirements */
    --text-color: #333333;
    --light-text: #666666;
    --white: #ffffff;
    --background-gray: #f8f9fa;
    --border-color: #e9ecef;

    /* Fonts */
    --font-ar: 'Cairo', sans-serif;
    --font-en: 'Inter', sans-serif;

    /* Spacing */
    --container-width: 1200px;
    --header-height: 80px;
    --section-padding: 80px 0;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-en);
    background-color: var(--white);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

/* RTL Support */
[dir="rtl"] body {
    font-family: var(--font-ar);
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    font-size: 1rem;
    border: none;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    box-shadow: 0 4px 6px rgba(0, 119, 182, 0.2);
}

.btn-primary:hover {
    background-color: #023e8a;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.section-title p {
    color: var(--light-text);
    max-width: 600px;
    margin: 0 auto;
}

/* Header */
header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-color);
}

.nav-links a:hover {
    color: var(--primary-color);
}

.lang-switch {
    font-weight: 700;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
}

.mobile-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    height: 100vh;
    min-height: 600px;
    background: linear-gradient(rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.8)), url('assets/images/hero-bg.png');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    text-align: center;
    padding-top: var(--header-height);
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    color: var(--light-text);
    margin-bottom: 30px;
}

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

/* Why Us Section */
.why-us {
    padding: var(--section-padding);
    background-color: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    text-align: center;
    padding: 30px;
    background: var(--background-gray);
    border-radius: 15px;
    transition: 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 15px;
    color: var(--text-color);
}

/* Services Section */
.services {
    padding: var(--section-padding);
    background-color: var(--background-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: 0.3s;
}

.service-card:hover {
    box-shadow: 0 10px 20px rgba(0,0,0,0.08);
}

.service-icon {
    width: 60px;
    height: 60px;
    background-color: var(--soft-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2d6a4f;
    font-size: 1.5rem;
    flex-shrink: 0;
}

/* About Doctor */
.about {
    padding: var(--section-padding);
    background-color: var(--white);
}

.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.doctor-img {
    flex: 1;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.doctor-info {
    flex: 1;
}

.doctor-info h2 {
    color: var(--primary-color);
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.doctor-info p {
    color: var(--light-text);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.qualifications {
    margin-top: 30px;
}

.qualifications li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.check-icon {
    color: var(--primary-color);
}

/* Gallery */
.gallery {
    padding: var(--section-padding);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.gallery-item {
    border-radius: 15px;
    overflow: hidden;
    height: 300px;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: 0.5s;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

/* Testimonials */
.testimonials {
    padding: var(--section-padding);
    background-color: var(--background-gray);
}

.testimonial-card {
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    text-align: center;
}

.stars {
    color: #ffc107;
    margin-bottom: 15px;
}

.client-name {
    margin-top: 15px;
    font-weight: 700;
    color: var(--primary-color);
}

/* FAQ */
.faq {
    padding: var(--section-padding);
    background-color: var(--white);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--border-color);
}

.faq-question {
    padding: 20px 0;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: 0.3s;
    color: var(--light-text);
}

.faq-answer p {
    padding-bottom: 20px;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.toggle-icon {
    transition: 0.3s;
}

.faq-item.active .toggle-icon {
    transform: rotate(180deg);
}

/* Contact */
.contact {
    padding: var(--section-padding);
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
}

.contact h2 {
    color: var(--white);
    margin-bottom: 20px;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
}

.map {
    margin-top: 40px;
    border-radius: 15px;
    overflow: hidden;
    height: 400px;
}

/* Footer */
footer {
    background-color: #001d3d;
    color: rgba(255, 255, 255, 0.7);
    padding: 40px 0;
    text-align: center;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .mobile-toggle {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 30px;
        box-shadow: 0 10px 10px rgba(0,0,0,0.05);
        clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
        transition: 0.3s ease-in-out;
    }

    /* RTL specific sliding */
    [dir="rtl"] .nav-links {
        right: 0;
        left: auto;
    }

    .nav-links.active {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
}