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

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

body {
    overflow-x: hidden;
}

::selection {
    background: rgba(201, 168, 76, 0.3);
    color: #f0f0f0;
}

/* Scroll reveal base — content is visible by default, JS adds animation */
.reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.revealed {
    opacity: 0;
    transform: translateY(40px);
}

.reveal.revealed.visible {
    opacity: 1;
    transform: none;
}

/* Hero entrance animations */
.hero-element {
    opacity: 0;
    transform: translateY(30px);
    animation: heroReveal 0.9s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero-element:nth-child(1) { animation-delay: 0.1s; }
.hero-element:nth-child(2) { animation-delay: 0.3s; }
.hero-element:nth-child(3) { animation-delay: 0.5s; }
.hero-element:nth-child(4) { animation-delay: 0.7s; }
.hero-element:nth-child(5) { animation-delay: 0.9s; }

@keyframes heroReveal {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Navbar scroll state */
.nav-scrolled {
    background: rgba(12, 19, 25, 0.92) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(201, 168, 76, 0.1);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* Gold accent line animation */
.gold-line {
    position: relative;
}

.gold-line::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #c9a84c, #e0cc8a);
    transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.gold-line:hover::after {
    width: 100%;
}

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

::-webkit-scrollbar-track {
    background: #0c1319;
}

::-webkit-scrollbar-thumb {
    background: #2e4254;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #3d5266;
}

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

    html {
        scroll-behavior: auto;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }

    .hero-element {
        opacity: 1;
        transform: none;
    }
}

/* Mobile menu transitions */
#mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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