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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #0a1830;
}
::-webkit-scrollbar-thumb {
    background: #1e3d72;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #d4a843;
}

/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

@keyframes float-delayed {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(-3deg); }
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

.animate-float-delayed {
    animation: float-delayed 5s ease-in-out infinite;
    animation-delay: 1s;
}

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

.reveal[data-reveal-delay="100"] { transition-delay: 100ms; }
.reveal[data-reveal-delay="200"] { transition-delay: 200ms; }
.reveal[data-reveal-delay="300"] { transition-delay: 300ms; }

/* Mobile Menu */
.mobile-link {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

#mobile-menu.open .mobile-link {
    animation: slideUp 0.4s ease forwards;
}

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hamburger Animation */
#mobile-toggle.open #bar1 {
    transform: translateY(4px) rotate(45deg);
}
#mobile-toggle.open #bar2 {
    opacity: 0;
}
#mobile-toggle.open #bar3 {
    transform: translateY(-4px) rotate(-45deg);
}

/* Selection */
::selection {
    background: #d4a843;
    color: #0a1830;
}

/* 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;
    }
}

/* Focus Styles */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid #d4a843;
    outline-offset: 2px;
    border-radius: 4px;
}

/* Navbar transparent to solid transition */
#navbar.scrolled {
    background: rgba(10, 24, 48, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* Image lazy loading placeholder */
img {
    background: linear-gradient(135deg, #0f2242 0%, #1e3d72 100%);
}

/* Gallery grid gap fix */
.grid-cols-2 {
    gap: 0.5rem;
}

@media (min-width: 768px) {
    .grid-cols-2 {
        gap: 1rem;
    }
}