:root {
    --primary-color: #0d9488; /* Teal 600 */
    --primary-hover: #0f766e; /* Teal 700 */
    --secondary-color: #f0fdfa; /* Teal 50 */
    --text-dark: #1e293b; /* Slate 800 */
    --text-light: #64748b; /* Slate 500 */
    --bg-color: #ffffff;
    --bg-light: #f8fafc; /* Slate 50 */
    --white: #ffffff;
    --transition: all 0.3s ease;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

html {
    scroll-behavior: smooth;
}

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

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

.section {
    padding: 80px 0;
}

.bg-light {
    background-color: var(--bg-light);
}

h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
}

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

ul {
    list-style: none;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    box-shadow: 0 4px 6px rgba(13, 148, 136, 0.2);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(13, 148, 136, 0.3);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    border: 1px solid rgba(13, 148, 136, 0.2);
}

.btn-secondary:hover {
    background-color: #ccfbf1;
    transform: translateY(-2px);
}

.btn-block {
    display: block;
    width: 100%;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    padding: 15px 0;
    transition: var(--transition);
}

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

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
}

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

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

.nav-links a {
    font-weight: 600;
    color: var(--text-dark);
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--primary-color);
    transition: var(--transition);
}

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

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

.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.menu-toggle .bar {
    height: 3px;
    width: 25px;
    background-color: var(--text-dark);
    margin: 4px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 150px 0 100px;
    background: linear-gradient(135deg, #f0fdfa 0%, #ffffff 100%);
    overflow: hidden;
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
}

.hero-content {
    flex: 1;
}

.hero-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
    color: #0f172a;
}

.hero-content p {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 30px;
}

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

.hero-image {
    flex: 1;
    position: relative;
}

.hero-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: var(--shadow);
    transform: perspective(1000px) rotateY(-5deg);
    transition: var(--transition);
}

.hero-image img:hover {
    transform: perspective(1000px) rotateY(0deg) scale(1.02);
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 36px;
    margin-bottom: 15px;
    color: #0f172a;
}

.section-header p {
    color: var(--text-light);
    font-size: 18px;
    max-width: 600px;
    margin: 0 auto;
}

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

.service-card {
    background: var(--white);
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.02);
    border: 1px solid #f1f5f9;
    transition: var(--transition);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
    border-color: #e2e8f0;
}

.service-card .icon {
    font-size: 40px;
    margin-bottom: 20px;
    display: inline-block;
    padding: 15px;
    background-color: var(--secondary-color);
    border-radius: 50%;
}

.service-card h3 {
    margin-bottom: 15px;
    font-size: 20px;
}

.service-card p {
    color: var(--text-light);
    font-size: 15px;
}

/* Doctors */
.doctors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.doctor-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.doctor-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
}

.doctor-card img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.doctor-info {
    padding: 25px;
}

.doctor-info h3 {
    font-size: 22px;
    margin-bottom: 5px;
}

.specialty {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 15px;
    font-size: 14px;
}

.doctor-info p:not(.specialty) {
    color: var(--text-light);
    font-size: 15px;
}

/* Appointment */
.appointment {
    background: linear-gradient(135deg, #0f766e 0%, #0d9488 100%);
    color: var(--white);
}

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

.appointment-content {
    flex: 1;
}

.appointment-content h2 {
    font-size: 36px;
    margin-bottom: 20px;
    color: var(--white);
}

.appointment-content p {
    font-size: 18px;
    opacity: 0.9;
}

.appointment-form {
    flex: 1;
    background: var(--white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow);
}

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

.form-group input,
.form-group select {
    width: 100%;
    padding: 15px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-family: inherit;
    font-size: 16px;
    color: var(--text-dark);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.1);
}

.hidden {
    display: none;
}

.form-message {
    margin-top: 20px;
    padding: 15px;
    border-radius: 8px;
    background-color: var(--secondary-color);
    color: var(--primary-color);
    text-align: center;
    font-weight: 600;
}

/* Footer */
.footer {
    background-color: #0f172a;
    color: #cbd5e1;
    padding: 80px 0 20px;
}

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

.footer-col h3, .footer-col h4 {
    color: var(--white);
    margin-bottom: 20px;
}

.footer-col h3 span {
    color: var(--primary-color);
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--primary-color);
}

.footer-col p {
    margin-bottom: 10px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #334155;
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-container, .appointment-container {
        flex-direction: column;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 36px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .appointment-content {
        margin-bottom: 30px;
    }
}

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

    .menu-toggle {
        display: flex;
    }

    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        padding: 20px;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
        text-align: center;
    }
}