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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

/* Selection */
::selection {
    background: rgba(251, 191, 36, 0.3);
    color: #fbbf24;
}

/* Floating animation for hero orbs */
@keyframes float {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-20px) scale(1.05); }
}

@keyframes float-delay {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(15px) scale(1.02); }
}

.animate-float {
    animation: float 8s ease-in-out infinite;
}

.animate-float-delay {
    animation: float-delay 10s ease-in-out infinite;
}

/* Scroll reveal - progressive enhancement via JS */
.scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .scroll-reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
    
    .animate-float,
    .animate-float-delay {
        animation: none;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Navbar styles */
#navbar.scrolled {
    background: rgba(2, 6, 23, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(251, 191, 36, 0.1);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

#navbar.scrolled .menu-line {
    background: #f1f5f9;
}

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

#mobile-menu:not(.open) {
    opacity: 0;
    pointer-events: none;
}

/* Mobile link hover */
.mobile-link {
    position: relative;
}

.mobile-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #fbbf24, #d97706);
    transition: width 0.3s ease;
}

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

/* Gold gradient text utility */
.text-gold-gradient {
    background: linear-gradient(135deg, #fcd34d, #fbbf24, #f59e0b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Image hover zoom container */
.group:hover img {
    transition-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
}

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

::-webkit-scrollbar-track {
    background: #020617;
}

::-webkit-scrollbar-thumb {
    background: #1e293b;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #334155;
}

/* Focus visible for accessibility */
:focus-visible {
    outline: 2px solid #fbbf24;
    outline-offset: 2px;
}

/* Form focus states */
input:focus,
textarea:focus {
    background: rgba(15, 23, 42, 0.95);
}

/* Smooth image loading */
img {
    loading: lazy;
    decoding: async;
}