/* Custom styles for Bhargava & Bhargava MD — Precision Laser Center */

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

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

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
}

#navbar.scrolled .nav-text {
    color: #0f172a;
}

/* Active nav link on scroll */
.nav-link.active {
    color: #0d9488;
}

/* Intersection Observer fade-in animations */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered children */
.stagger-children .fade-up:nth-child(1) { transition-delay: 0.05s; }
.stagger-children .fade-up:nth-child(2) { transition-delay: 0.1s; }
.stagger-children .fade-up:nth-child(3) { transition-delay: 0.15s; }
.stagger-children .fade-up:nth-child(4) { transition-delay: 0.2s; }
.stagger-children .fade-up:nth-child(5) { transition-delay: 0.25s; }
.stagger-children .fade-up:nth-child(6) { transition-delay: 0.3s; }

/* Mobile menu */
#mobileMenu {
    animation: slideDown 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Prevent body scroll when mobile menu is open */
body.menu-open {
    overflow: hidden;
}

/* Form focus styles */
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: #ccfbf1;
    color: #134e4a;
}

/* Print styles */
@media print {
    #navbar, #contactForm, #successMessage { display: none; }
    body { color: #000; background: #fff; }
}