/* Custom styles & overrides */

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

/* Navbar scroll state */
#navbar.scrolled {
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.3);
}

/* Intersection observer animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.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; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* Hero gradient animation */
@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

#hero {
    background-size: 200% 200%;
    animation: gradientShift 15s ease infinite;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #0a1628;
}
::-webkit-scrollbar-thumb {
    background: #c9a84c;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #b8943f;
}

/* Focus styles for accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid #c9a84c;
    outline-offset: 2px;
}

/* Mobile menu transition */
#mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

#mobile-menu.open {
    max-height: 400px;
}

/* Subtle hover lift for cards */
.group {
    will-change: transform;
}

/* Image loading placeholder */
img {
    background-color: #e5e7eb;
}