/* Responsive Design Enhancements */

/* Header Responsive Styles */
@media (max-width: 992px) {
    .main-header {
        position: sticky;
        top: 0;
        z-index: 100;
    }
}

/* Mobile-First Additional Responsive Rules */
@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    
    .clinic-logo {
        height: 45px;
    }
    
    .clinic-info h1 {
        font-size: 1.4rem;
    }
    
    .clinic-subtitle {
        font-size: 0.8rem;
    }
    
    .hero-section {
        padding: 2rem 0;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .benefit-item {
        font-size: 0.9rem;
    }
    
    .action-card,
    .trial-card,
    .area-card,
    .benefit-card {
        padding: 1.5rem;
    }
    
    .trial-title {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.9rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-cta .btn {
        width: 100%;
        max-width: 280px;
    }
}

/* Tablet Specific Adjustments */
@media (min-width: 481px) and (max-width: 768px) {
    .hero-content {
        gap: 2rem;
    }
    
    .trials-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    .areas-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

/* Large Tablet / Small Desktop */
@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        max-width: 960px;
    }
    
    .hero-content {
        gap: 2.5rem;
    }
    
    .trials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .areas-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .benefits-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Large Desktop */
@media (min-width: 1200px) {
    .container {
        max-width: 1400px;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .section-title {
        font-size: 2.25rem;
    }
    
    .trials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .areas-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .benefits-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Ultra-wide Screens */
@media (min-width: 1400px) {
    .container {
        max-width: 1600px;
    }
}

/* High DPI / Retina Display Adjustments */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .clinic-logo,
    .doctor-photo,
    .hero-img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Specific Header Mobile Adjustments */
@media (max-width: 768px) {
    .main-header {
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }
    
    .header-content {
        padding: 0.75rem 0;
    }
    
    .main-navigation {
        padding: 0;
        min-height: 50px;
        display: flex;
        align-items: center;
    }
    
    /* Ensure mobile menu toggle is properly positioned */
    .main-navigation .container {
        position: relative;
        display: flex;
        justify-content: flex-end;
        align-items: center;
        min-height: 50px;
    }
    
    .mobile-menu-toggle {
        position: absolute;
        right: 15px;
        top: 50%;
        transform: translateY(-50%);
    }
}

/* Print Styles */
@media print {
    * {
        background: white !important;
        color: black !important;
        box-shadow: none !important;
    }
    
    .main-navigation,
    .mobile-menu-toggle,
    .btn,
    .footer {
        display: none !important;
    }
    
    .container {
        max-width: none;
        margin: 0;
        padding: 0;
    }
    
    .hero-section,
    .quick-actions,
    .featured-trials,
    .research-areas,
    .participation-benefits,
    .about-doctor,
    .contact-cta {
        padding: 1rem 0;
        page-break-inside: avoid;
    }
}