*, *::before, *::after {
    box-sizing: border-box;
}

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

body {
    overflow-x: hidden;
}

/* Navigation */
.nav-scrolled {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 40;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(15, 33, 64, 0.08);
    transition: all 0.4s ease;
}

.nav-scrolled .menu-line {
    background: #0f2140 !important;
}

/* Mobile menu */
.mobile-menu {
    z-index: 50;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f8fafc;
}
::-webkit-scrollbar-thumb {
    background: #0f2140;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #1b3a6e;
}

/* Selection */
::selection {
    background: #c8a84e;
    color: #0a1628;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible */
:focus-visible {
    outline: 2px solid #c8a84e;
    outline-offset: 2px;
}