/* 
    Modern Medical Laboratory CSS
    Primary Colors: Dark Green, Teal, White
    Font: Cairo
*/

:root {
    --primary: #0a4f41; /* Dark Green */
    --secondary: #008080; /* Teal */
    --secondary-light: #e6f2f2;
    --accent: #20c997;
    --text-main: #2d3748;
    --text-muted: #718096;
    --bg-light: #f7fafc;
    --bg-white: #ffffff;
    --border: #e2e8f0;
    --danger: #e53e3e;
    --success: #38a169;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --border-radius: 12px;
    --nav-bg: rgba(255, 255, 255, 0.95);
}

body.dark-mode {
    --primary: #128a73;
    --secondary: #00cccc;
    --secondary-light: #1e293b;
    --text-main: #f1f5f9;
    --text-muted: #cbd5e1;
    --bg-light: #0f172a;
    --bg-white: #1e293b;
    --border: #334155;
    --nav-bg: rgba(30, 41, 59, 0.95);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.5), 0 1px 2px rgba(0,0,0,0.4);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Cairo', sans-serif;
    color: var(--text-main);
    background-color: var(--bg-light);
    line-height: 1.6;
    overflow-x: hidden;
}

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

h1, h2, h3, h4, h5, h6 {
    color: var(--primary);
    font-weight: 700;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Utilities */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
}

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

.btn-primary:hover {
    background-color: var(--secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: var(--secondary-light);
    color: var(--secondary);
    border-color: var(--secondary);
    transform: translateY(-2px);
}

.btn-danger {
    background-color: var(--danger);
    color: var(--bg-white);
    padding: 6px 12px;
    font-size: 0.875rem;
}

.btn-danger:hover {
    background-color: #c53030;
}

.btn-block {
    width: 100%;
}

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

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--accent);
    border-radius: 2px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-top: 1rem;
}

/* Navbar */
.navbar {
    background-color: var(--nav-bg);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: var(--transition);
    padding: 15px 0;
}

.navbar.scrolled {
    padding: 10px 0;
    box-shadow: var(--shadow-md);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
}

.logo-icon {
    color: var(--secondary);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-weight: 600;
    position: relative;
    padding: 5px 0;
    transition: var(--transition);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary);
    transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--secondary);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--primary);
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding-top: 120px;
    padding-bottom: 60px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--secondary-light) 100%);
    position: relative;
    overflow: hidden;
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero-content {
    flex: 1;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 10px;
    color: var(--primary);
}

.hero-slogan {
    font-size: 1.8rem;
    color: var(--secondary);
    margin-bottom: 20px;
    font-weight: 600;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 30px;
    max-width: 500px;
}

.hero-contact-info {
    margin-bottom: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.05rem;
    color: var(--text-main);
    font-weight: 600;
}

.info-item svg {
    color: var(--secondary);
}

.location-link {
    transition: var(--transition);
}

.location-link:hover {
    color: var(--secondary);
    text-decoration: underline;
}

.hero-actions {
    display: flex;
    gap: 15px;
}

.hero-image-wrapper {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-graphic {
    width: 400px;
    height: 400px;
    background: var(--bg-white);
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px;
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.hero-graphic::before {
    content: '';
    position: absolute;
    width: 120%;
    height: 120%;
    border-radius: 50%;
    border: 2px dashed var(--secondary);
    animation: spin 30s linear infinite;
    opacity: 0.3;
}

.bg-icon {
    color: var(--primary);
    opacity: 0.8;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

@keyframes spin {
    100% { transform: rotate(360deg); }
}

/* Services */
.services {
    padding: 80px 0;
    background-color: var(--bg-white);
}

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

.service-card {
    background-color: var(--bg-white);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 0;
    background: linear-gradient(to bottom, var(--secondary-light), transparent);
    z-index: -1;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary);
}

.service-card:hover::before {
    height: 100%;
}

.service-icon {
    width: 70px;
    height: 70px;
    background-color: var(--secondary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--secondary);
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background-color: var(--secondary);
    color: var(--bg-white);
    transform: scale(1.1);
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 10px;
}

.service-card p {
    color: var(--text-muted);
}


/* Appointment Section */
.appointment {
    padding: 80px 0;
    background-color: var(--bg-white);
}

.appointment-container {
    display: flex;
    gap: 50px;
    align-items: center;
}

.appointment-content {
    flex: 1;
}

.appointment-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.appointment-content p {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 30px;
}

.appointment-form-wrapper {
    flex: 1;
    background: var(--bg-white);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    position: relative;
}

.appointment-form-wrapper::before {
    content: '';
    position: absolute;
    top: -10px;
    right: -10px;
    width: 100px;
    height: 100px;
    background-color: var(--secondary-light);
    border-radius: var(--border-radius);
    z-index: -1;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-main);
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--bg-light);
}

.form-group input:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(0, 128, 128, 0.1);
    background-color: var(--bg-white);
}

.alert {
    padding: 15px;
    border-radius: 8px;
    margin-top: 20px;
    font-weight: 600;
    text-align: center;
    opacity: 1;
    transition: opacity 0.3s;
}

.alert.hidden {
    opacity: 0;
    display: none;
}

.alert.success {
    background-color: #c6f6d5;
    color: #276749;
    border: 1px solid #9ae6b4;
}

/* Footer */
.footer {
    background-color: var(--primary);
    color: var(--bg-white);
    padding: 60px 0 20px;
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.footer-logo h3 {
    color: var(--bg-white);
    font-size: 1.5rem;
}

.footer-about p {
    color: #cbd5e0;
}

.footer h4 {
    color: var(--accent);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-contact p {
    margin-bottom: 10px;
    color: #cbd5e0;
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--bg-white);
    transition: var(--transition);
}

.social-link:hover {
    color: var(--accent);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #cbd5e0;
}

/* Responsive */
@media (max-width: 992px) {
    .hero-container, .appointment-container {
        flex-direction: column;
    }
    
    .hero-graphic {
        width: 300px;
        height: 300px;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--bg-white);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        box-shadow: var(--shadow-md);
        clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
        transition: clip-path 0.3s ease-in-out;
    }
    
    .nav-links.show {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }

    .hero-title {
        font-size: 2.2rem;
    }
}