/* ========================================
   The Collector's Vault — Custom Styles
   Premium Dark Luxury Design System
   ======================================== */

/* --- CSS Custom Properties --- */
:root {
    --color-plum-50: #fdf4f8;
    --color-plum-950: #3d0715;
    --color-amber-300: #fcd34d;
    --color-amber-400: #fbbf24;
    --color-amber-500: #f59e0b;
    --color-vault-900: #0a0a0f;
    --color-vault-800: #111118;
    
    --font-serif: 'Playfair Display', Georgia, serif;
    --font-sans: 'Inter', system-ui, sans-serif;
}

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

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

body {
    margin: 0;
    overflow-x: hidden;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--color-vault-900);
}
::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, #db4074, #f59e0b);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(to bottom, #c21d55, #d97706);
}

/* --- Selection --- */
::selection {
    background: rgba(219, 64, 116, 0.3);
    color: #fcd34d;
}

/* --- Animations --- */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulseSlow {
    0%, 100% {
        opacity: 0.2;
        transform: scale(1);
    }
    50% {
        opacity: 0.35;
        transform: scale(1.05);
    }
}

@keyframes scrollLine {
    0% {
        height: 0;
        opacity: 0;
    }
    50% {
        height: 48px;
        opacity: 1;
    }
    100% {
        height: 48px;
        opacity: 0;
    }
}

.animate-fade-in {
    animation: fadeIn 0.8s ease-out forwards;
}

.animate-pulse-slow {
    animation: pulseSlow 4s ease-in-out infinite;
}

.animate-scroll-line {
    animation: scrollLine 2s ease-in-out infinite;
}

/* --- Scroll Reveal --- */
.scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s ease-out, transform 0.7s ease-out;
    }
    
    .scroll-reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Navbar --- */
#navbar {
    background: transparent;
    transition: background 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}

#navbar.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(251, 191, 36, 0.08), 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* --- Mobile Menu --- */
.mobile-link {
    opacity: 1;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

#mobileMenu.open {
    opacity: 1;
    pointer-events: all;
}

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

/* --- Button Focus States --- */
a:focus-visible, button:focus-visible {
    outline: 2px solid #fbbf24;
    outline-offset: 3px;
    border-radius: 4px;
}

/* --- Image Lazy Loading --- */
img[loading="lazy"] {
    transition: opacity 0.3s ease;
}

img[loading="lazy"]:not([src]) {
    opacity: 0;
}

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

/* --- Print styles --- */
@media print {
    #navbar, .scroll-reveal {
        opacity: 1 !important;
        transform: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
}