/* ===================================
   Back To Health Chiropractic
   Custom Styles
   =================================== */

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

/* Base Typography */
body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Hero Animations */
.hero-anim {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-anim.animated {
    opacity: 1;
    transform: translateY(0);
}

.hero-anim:nth-child(1) { transition-delay: 0.1s; }
.hero-anim:nth-child(2) { transition-delay: 0.25s; }
.hero-anim:nth-child(3) { transition-delay: 0.4s; }
.hero-anim:nth-child(4) { transition-delay: 0.55s; }

/* Scroll Reveal */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Card Hover Effects */
.card-hover {
    transform: translateY(0);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.4s ease,
                border-color 0.4s ease;
}

.card-hover:hover {
    transform: translateY(-4px);
}

/* Navbar Transition */
#navbar.scrolled {
    background: rgba(2, 6, 23, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

#navbar.scrolled #nav-logo-text {
    color: #f8fafc;
}

/* Mobile Menu */
#mobile-menu {
    animation: slideDown 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mobile-nav-link {
    transition: all 0.2s ease;
}

.mobile-nav-link:active {
    background: rgba(255, 255, 255, 0.1);
}

/* Form Focus States */
input:focus,
select:focus,
textarea:focus {
    outline: none;
}

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

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

/* Selection Color */
::selection {
    background: #0d9488;
    color: #f8fafc;
}

/* 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;
    }
}

/* Responsive Adjustments */
@media (max-width: 640px) {
    .font-serif {
        line-height: 1.2;
    }
}

@media (min-width: 1024px) {
    /* Subtle parallax-like effect for hero */
    #hero {
        perspective: 1000px;
    }
}