/* Custom styles for Dr. Robert Clark - Medical & Health */

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Navbar transition */
.nav-scrolled {
    background: rgba(250, 250, 247, 0.95) !important;
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05), 0 4px 20px rgba(0, 0, 0, 0.03);
}

.nav-scrolled .nav-logo-text {
    color: #052e16 !important;
}

.nav-scrolled .nav-link {
    color: #4b5563 !important;
}

.nav-scrolled .mobile-nav-link {
    color: #052e16 !important;
}

/* Navigation link underline animation */
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #166534;
    transition: width 0.3s ease;
}

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

.nav-link {
    position: relative;
}

/* Mobile menu animations */
.mobile-menu-open {
    opacity: 1 !important;
    pointer-events: all !important;
}

/* Reveal animations */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-hidden {
    opacity: 0;
    transform: translateY(24px);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    .reveal-hidden {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* Form focus styles */
input:focus,
textarea:focus {
    outline: none;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f5f5ef;
}

::-webkit-scrollbar-thumb {
    background: #85c985;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #166534;
}

/* Selection color */
::selection {
    background: #dcefdc;
    color: #052e16;
}

/* Button hover lift effect */
button, a {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Image loading placeholder */
img {
    background: linear-gradient(135deg, #f0f7f0 0%, #dcefdc 100%);
}

/* Card hover subtle transform */
.group:hover {
    transform: translateY(-2px);
}

/* Gradient text utility */
.text-gradient {
    background: linear-gradient(135deg, #166534 0%, #4fa84f 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Subtle pattern overlay for sections */
.section-pattern {
    background-image: radial-gradient(circle at 1px 1px, rgba(22, 101, 52, 0.03) 1px, transparent 0);
    background-size: 24px 24px;
}