body {
    background-color: #050507;
    color: #f0ede6;
    font-family: 'Noto Serif JP', serif;
    line-height: 2;
}

/* Washi/Noise Texture Overlay */
.washi-texture {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    opacity: 0.04;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Particle Canvas */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* Ambient Background Lights */
.ambient-light {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -1;
    opacity: 0.3;
    pointer-events: none;
}
.light-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.15) 0%, rgba(5, 5, 7, 0) 70%);
}
.light-2 {
    bottom: -20%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(100, 120, 150, 0.1) 0%, rgba(5, 5, 7, 0) 70%);
}

/* Scroll Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.reveal.active {
    opacity: 1;
    transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.2s; }
.reveal-delay-2 { transition-delay: 0.4s; }
.reveal-delay-3 { transition-delay: 0.6s; }

/* Japanese Vertical Text */
.vertical-text {
    writing-mode: vertical-rl;
    text-orientation: upright;
}

/* Custom selection color */
::selection {
    background-color: rgba(212, 175, 55, 0.3);
    color: #fff;
}

/* Image decorative border */
.img-border {
    position: relative;
}
.img-border::after {
    content: '';
    position: absolute;
    top: 15px;
    left: -15px;
    width: 100%;
    height: 100%;
    border: 1px solid rgba(212, 175, 55, 0.3);
    z-index: -1;
    transition: all 0.5s ease;
}
.img-border:hover::after {
    top: 10px;
    left: -10px;
    border-color: rgba(212, 175, 55, 0.6);
}