:root {
    --primary-color: #1976d2;
    --secondary-color: #ff8f00;
    --dark-bg: #121212;
    --card-bg: #1e1e1e;
    --border-color: #333;
    --light-text: #ffffff;
    --text-secondary: #b0b0b0;
    --success-color: #4caf50;
    --error-color: #f44336;
}

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

html, body {
    height: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background-color: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
}

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

a:hover {
    color: var(--secondary-color);
}

/* Header & Navigation */
.header {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo img {
    max-height: 60px;
    width: auto;
}

.nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--light-text);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-link:hover,
.nav-link.active {
    background-color: var(--primary-color);
    color: white;
}

.phone-btn {
    background-color: var(--secondary-color);
    color: #000;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.phone-btn:hover {
    background-color: #ff7f00;
    transform: translateY(-2px);
    color: #000;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--light-text);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

@media (max-width: 768px) {
    .header-container {
        height: 60px;
    }

    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--dark-bg);
        padding: 1rem 0;
        border-bottom: 1px solid var(--border-color);
    }

    .nav.active {
        display: flex;
    }

    .nav-link {
        padding: 1rem;
        width: 100%;
        border: none;
    }

    .phone-btn {
        display: none;
    }

    .menu-toggle {
        display: block;
    }
}

/* Main Content */
main {
    flex: 1;
}

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

/* Hero Section */
.hero {
    position: relative;
    padding: 8rem 20px;
    text-align: center;
    color: white;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 600px;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(25, 118, 210, 0.7) 0%, rgba(255, 143, 0, 0.7) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .hero {
        padding: 3rem 20px;
    }

    .hero h1 {
        font-size: 2rem;
    }

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

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: #1565c0;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(25, 118, 210, 0.4);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: #000;
}

.btn-secondary:hover {
    background-color: #ff7f00;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 143, 0, 0.4);
}

/* Services Section */
.services {
    padding: 4rem 20px;
    background-color: var(--dark-bg);
}

.services h2,
.services-detailed h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--light-text);
}

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

.service-card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: 0 12px 24px rgba(25, 118, 210, 0.2);
}

.service-card h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.service-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Testimonials Section */
.testimonials {
    padding: 4rem 20px;
    background-color: var(--dark-bg);
}

.testimonials h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--light-text);
}

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

.testimonial-card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.testimonial-card:hover {
    transform: translateY(-4px);
    border-color: var(--secondary-color);
    box-shadow: 0 8px 16px rgba(255, 143, 0, 0.15);
}

.testimonial-text {
    color: var(--text-secondary);
    font-style: italic;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.testimonial-author {
    color: var(--secondary-color);
    font-weight: 600;
}

/* Contact CTA Section */
.contact-cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 4rem 20px;
    text-align: center;
    color: white;
}

.contact-cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.contact-cta p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 3rem 20px;
    text-align: center;
    color: white;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.page-header p {
    font-size: 1.1rem;
    opacity: 0.95;
}

/* Content Section */
.content-section {
    padding: 4rem 20px;
    background-color: var(--dark-bg);
}

.two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.column h2 {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
}

.column h3 {
    color: var(--secondary-color);
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.column p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.doctor-photo-container {
    width: 100%;
    margin-bottom: 2rem;
    border-radius: 8px;
    overflow: hidden;
    border: 2px solid var(--border-color);
}

.doctor-photo {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

.doctor-photo:hover {
    transform: scale(1.05);
}

@media (max-width: 768px) {
    .two-column {
        grid-template-columns: 1fr;
    }

    .doctor-photo-container {
        max-width: 400px;
        margin: 0 auto 2rem;
    }
}

/* Services Detailed */
.services-detailed {
    padding: 4rem 20px;
    background-color: var(--dark-bg);
}

/* Contact Content */
.contact-content {
    padding: 4rem 20px;
    background-color: var(--dark-bg);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 3rem;
}

.contact-form-section h2 {
    color: var(--light-text);
    margin-bottom: 2rem;
    font-size: 1.8rem;
}

.form-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--light-text);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: #2a2a2a;
    color: var(--light-text);
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.1);
}

.error-message {
    color: var(--error-color);
    font-size: 0.85rem;
    margin-top: 0.25rem;
    display: block;
}

.contact-info-section h2 {
    color: var(--light-text);
    margin-bottom: 2rem;
    font-size: 1.8rem;
}

.contact-info-card {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.contact-info-card h3 {
    color: var(--secondary-color);
    margin-bottom: 0.75rem;
}

.contact-info-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.contact-link {
    color: var(--primary-color);
    font-weight: 600;
}

.contact-link:hover {
    color: var(--secondary-color);
}

@media (max-width: 768px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}

/* Success Message */
.success-message {
    padding: 4rem 20px;
    background-color: var(--dark-bg);
    min-height: calc(100vh - 180px);
    display: flex;
    align-items: center;
}

.success-content {
    text-align: center;
    background-color: var(--card-bg);
    padding: 3rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    max-width: 500px;
    margin: 0 auto;
}

.success-icon {
    font-size: 4rem;
    color: var(--success-color);
    margin-bottom: 1rem;
    font-weight: bold;
}

.success-content h1 {
    color: var(--success-color);
    font-size: 2rem;
    margin-bottom: 1rem;
}

.success-subtitle {
    color: var(--secondary-color);
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.success-text {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

/* Footer */
.footer {
    background-color: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: 3rem 20px 1rem;
    color: var(--text-secondary);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--light-text);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

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

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--primary-color);
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--secondary-color);
}

.map-link {
    color: var(--primary-color);
    font-weight: 600;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }