/* Base */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #0a0a0c; }
::-webkit-scrollbar-thumb { background: #2a2a32; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #74162c; }

/* Selection */
::selection { background: rgba(204, 36, 72, 0.4); color: #fff; }

/* Hero floating cards */
@keyframes float1 {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-12px) rotate(0.5deg); }
}
@keyframes float2 {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-8px) rotate(-0.5deg); }
}
@keyframes float3 {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(0.3deg); }
}
.float-card-1 { animation: float1 6s ease-in-out infinite; }
.float-card-2 { animation: float2 7s ease-in-out infinite 1s; }
.float-card-3 { animation: float3 5.5s ease-in-out infinite 0.5s; }

/* 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-1"] { transition-delay: 100ms; }
.reveal[data-reveal="delay-2"] { transition-delay: 200ms; }
.reveal[data-reveal="delay-3"] { transition-delay: 300ms; }

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
    }
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Nav link underline */
.nav-link {
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: linear-gradient(90deg, #fbbf24, #d97706);
    transition: width 0.3s ease;
}
.nav-link:hover::after {
    width: 100%;
}

/* Mobile menu */
#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}
#mobile-menu.close {
    opacity: 0;
    pointer-events: none;
}
.mobile-link {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease, color 0.3s ease;
}
#mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}
#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.05s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.2s; }

/* Menu card shimmer */
.menu-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(251, 191, 36, 0.03), transparent);
    transition: left 0.6s ease;
    z-index: 1;
    pointer-events: none;
}
.menu-card:hover::before {
    left: 100%;
}

/* Navbar scroll state */
#navbar.scrolled {
    background: rgba(10, 10, 12, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* Gold gradient text utility */
.text-gold-gradient {
    background: linear-gradient(135deg, #fde68a, #fbbf24, #d97706);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Hamburger animation */
.menu-line {
    transition: transform 0.3s ease, opacity 0.3s ease;
}
#menu-btn.active .menu-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}
#menu-btn.active .menu-line:nth-child(2) {
    opacity: 0;
}
#menu-btn.active .menu-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

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

/* Image lazy load fade */
img[loading="lazy"] {
    transition: opacity 0.5s ease;
}
img[loading="lazy"].loaded {
    opacity: 1;
}
img[loading="lazy"] {
    opacity: 0;
}

/* Smooth anchor offset for fixed nav */
section[id] {
    scroll-margin-top: 80px;
}