/* Custom styles for The Burg Nutrition */

/* Smooth scroll offset for fixed header */
html {
    scroll-padding-top: 80px;
}

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

#navbar.scrolled {
    background: rgba(253, 248, 240, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 rgba(6, 78, 59, 0.08);
}

/* Nav link underline animation */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #059669;
    border-radius: 1px;
    transition: width 0.3s ease;
}

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

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

#mobile-menu.close {
    opacity: 0;
    pointer-events: none;
}

/* Mobile menu animations */
.mobile-link {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

#mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

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

/* Hamburger animation */
.menu-line {
    transition: all 0.3s ease;
}

#mobile-toggle.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

#mobile-toggle.active .menu-line:nth-child(2) {
    opacity: 0;
}

#mobile-toggle.active .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
    width: 1.25rem;
}

/* Scroll reveal animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
    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; }

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

/* Selection color */
::selection {
    background: #A7F3D0;
    color: #064E3B;
}

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

::-webkit-scrollbar-track {
    background: #FDF8F0;
}

::-webkit-scrollbar-thumb {
    background: #6EE7B7;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #34D399;
}

/* Image aspect ratios for consistent layout */
img {
    display: block;
}

/* Subtle gradient overlay on hero */
#hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 70% 50%, rgba(110, 231, 183, 0.08) 0%, transparent 60%);
    pointer-events: none;
    z-index: -1;
}

/* Product card hover image zoom */
.group:hover .group-hover\:scale-105 {
    transform: scale(1.05);
}

/* Smooth button press effect */
button, a {
    -webkit-tap-highlight-color: transparent;
}

button:active, a:active {
    transform: scale(0.98);
}

/* Print styles */
@media print {
    #navbar, #mobile-toggle, #mobile-menu { display: none; }
    body { background: white; color: black; }
    .animate-bounce { animation: none; }
}