/* Base & Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    overflow-x: hidden;
}

::selection {
    background: #C8A45E;
    color: #0A1128;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #0A1128;
}
::-webkit-scrollbar-thumb {
    background: #C8A45E;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #D4B76A;
}

/* Particle animations */
.particle {
    position: absolute;
    border-radius: 50%;
    background: #C8A45E;
    opacity: 0.15;
    animation: float 20s infinite ease-in-out;
}

.particle-1 {
    width: 8px;
    height: 8px;
    top: 20%;
    left: 15%;
    animation-delay: 0s;
}

.particle-2 {
    width: 12px;
    height: 12px;
    top: 60%;
    left: 80%;
    animation-delay: -5s;
}

.particle-3 {
    width: 6px;
    height: 6px;
    top: 40%;
    left: 60%;
    animation-delay: -10s;
}

.particle-4 {
    width: 10px;
    height: 10px;
    top: 80%;
    left: 25%;
    animation-delay: -15s;
}

.particle-5 {
    width: 14px;
    height: 14px;
    top: 15%;
    left: 75%;
    animation-delay: -8s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0) scale(1);
    }
    25% {
        transform: translateY(-40px) translateX(20px) scale(1.1);
    }
    50% {
        transform: translateY(-20px) translateX(-30px) scale(0.9);
    }
    75% {
        transform: translateY(-60px) translateX(10px) scale(1.05);
    }
}

/* Reveal animations (progressive enhancement) */
@media (prefers-reduced-motion: no-preference) {
    .reveal-up {
        opacity: 0;
        transform: translateY(40px);
        transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    .reveal-left {
        opacity: 0;
        transform: translateX(-40px);
        transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .reveal-left.revealed {
        opacity: 1;
        transform: translateX(0);
    }

    .reveal-right {
        opacity: 0;
        transform: translateX(40px);
        transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .reveal-right.revealed {
        opacity: 1;
        transform: translateX(0);
    }
}

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

#mobile-menu.closed {
    opacity: 0;
    pointer-events: none;
}

/* Navbar transition */
#navbar.scrolled {
    background: rgba(10, 17, 40, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* Image lazy load fallback */
img {
    background: linear-gradient(135deg, #1a2a4a 0%, #0f1c3f 100%);
}

/* Focus styles */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid #C8A45E;
    outline-offset: 2px;
}

/* Smooth image loading */
img {
    transition: opacity 0.3s ease;
}

img[loading="lazy"] {
    opacity: 0;
}

img.loaded {
    opacity: 1;
}

/* Custom gold gradient text utility */
.text-gold-gradient {
    background: linear-gradient(135deg, #C8A45E 0%, #E0CA78 50%, #C8A45E 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Hover lift effect for cards */
@media (prefers-reduced-motion: no-preference) {
    .hover-lift {
        transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .hover-lift:hover {
        transform: translateY(-4px);
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    }
}

/* Gold shimmer effect on hover */
@media (prefers-reduced-motion: no-preference) {
    .gold-shimmer {
        position: relative;
        overflow: hidden;
    }
    .gold-shimmer::after {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(
            90deg,
            transparent,
            rgba(200, 164, 94, 0.1),
            transparent
        );
        transition: left 0.6s ease;
    }
    .gold-shimmer:hover::after {
        left: 100%;
    }
}