@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+KR:wght@300;400;500;700&family=Playfair+Display:ital,wght@0,400;0,600;1,400&display=swap');

:root {
    --primary-bg: #1a1a1a;
    --text-main: #f5f5f5;
    --gold-accent: #d4af37;
    --ink-color: #000;
}

body {
    background-color: var(--primary-bg);
    color: var(--text-main);
    overflow-x: hidden;
}

.font-serif-kr {
    font-family: 'Noto Serif KR', serif;
}

.font-serif-en {
    font-family: 'Playfair Display', serif;
}

/* Ink Wash Entrance Animation */
.ink-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #000;
    z-index: 9999;
    pointer-events: none;
    display: flex;
    justify-content: center;
    align-items: center;
    /* Masking for ink effect would go here, simplified for CSS */
    opacity: 1;
    transition: opacity 2s ease-out;
}

.ink-overlay.loaded {
    opacity: 0;
}

/* Jewelry Shimmer Effect */
.shimmer-container {
    position: relative;
    overflow: hidden;
}

.shimmer-effect {
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(
        to right,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.3) 50%,
        rgba(255, 255, 255, 0) 100%
    );
    transform: skewX(-25deg);
    pointer-events: none;
    transition: left 0.5s;
}

.shimmer-container:hover .shimmer-effect {
    animation: shimmer-anim 1s forwards;
}

@keyframes shimmer-anim {
    0% { left: -100%; }
    100% { left: 200%; }
}

/* Navigation */
.nav-link {
    position: relative;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: -4px;
    left: 0;
    background-color: var(--gold-accent);
    transition: width 0.3s ease;
}

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

/* Floating AI Chat */
.ai-float-bar {
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

/* Section Transitions */
.section-fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s ease, transform 1s ease;
}

.section-fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Smooth Scroll behavior for anchor links */
html {
    scroll-behavior: smooth;
}