/* ============================================
   Prohealth Medical Center — Custom Styles
   Classic & Elegant | Charcoal + Coral
   ============================================ */

/* Base */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

::selection {
    background: rgba(247, 104, 60, 0.2);
    color: inherit;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #1a1a1a;
}
::-webkit-scrollbar-thumb {
    background: #4f4f4f;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #6d6d6d;
}

/* Navbar transitions */
#navbar {
    background: transparent;
}

#navbar.scrolled {
    background: rgba(26, 26, 26, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

#navbar.scrolled .nav-link,
#navbar.scrolled #nav-logo-text,
#navbar.scrolled #nav-logo-sub,
#navbar.scrolled .menu-line {
    color: #ffffff;
}

/* Service cards */
.service-card {
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #f7683c, #ed4b27);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    color: #f7683c;
    transition: color 0.5s ease;
}

.service-card:hover .service-icon {
    color: #ffd0b4;
}

/* Mobile menu */
#mobile-menu.active {
    opacity: 1;
    pointer-events: all;
}

#mobile-menu.active .mobile-nav-link {
    animation: fadeUp 0.4s ease forwards;
    opacity: 0;
}

#mobile-menu.active .mobile-nav-link:nth-child(1) { animation-delay: 0.05s; }
#mobile-menu.active .mobile-nav-link:nth-child(2) { animation-delay: 0.1s; }
#mobile-menu.active .mobile-nav-link:nth-child(3) { animation-delay: 0.15s; }
#mobile-menu.active .mobile-nav-link:nth-child(4) { animation-delay: 0.2s; }
#mobile-menu.active .mobile-nav-link:nth-child(5) { animation-delay: 0.25s; }

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Menu button animations */
.menu-line {
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

#menu-toggle[aria-expanded="true"] .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}
#menu-toggle[aria-expanded="true"] .menu-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
#menu-toggle[aria-expanded="true"] .menu-line:nth-child(3) {
    width: 24px;
    transform: rotate(-45deg) translate(4px, -4px);
}

/* Scroll reveal (progressive enhancement) */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                    transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    
    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
    
    .reveal {
        opacity: 1;
        transform: none;
    }
}

/* Form focus styles */
input:focus, textarea:focus {
    outline: none;
    box-shadow: 0 0 0 1px #f7683c;
}

/* Image loading */
img {
    opacity: 1;
    transition: opacity 0.3s ease;
}

img[data-src] {
    opacity: 0;
}

/* Print styles */
@media print {
    nav, #contact-form, .scroll-indicator {
        display: none !important;
    }
    
    body {
        color: #000;
        background: #fff;
    }
    
    .bg-charcoal-900, .bg-charcoal-50, .bg-coral-500 {
        background: #fff !important;
        color: #000 !important;
    }
}