@charset "utf-8";
:root{
    --text-size:15px;
    --accent:#9bb4ff;
}

input[type="text"]{
    font-size: 16px;
}

body {
    margin: 0;
    padding: 0;
    background: radial-gradient(circle at top, #1b1d28 0%, #04050a 60%, #010207 100%);
    color: #e0e0e0;
    font-family: "A1 Mincho", serif;
    min-height: 100vh;      
    font-size: var(--text-size);
    overflow-x: hidden;     
    display: flex;
    flex-direction: column; 
    align-items: center;
    position: relative;
}
body#is-top{
     justify-content: center;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background:
        radial-gradient(circle at center, rgba(40,60,120,0.15), transparent 70%),
        url("data:image/svg+xml;utf8,\
        <svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'>\
            <filter id='noise'>\
                <feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='5' stitchTiles='stitch'/>\
            </filter>\
            <rect width='100%' height='100%' filter='url(%23noise)' opacity='0.2'/>\
        </svg>");
    mix-blend-mode: screen;
    opacity: 0.6;
    pointer-events: none;
    z-index: 1;
}

.center-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 24px 16px;
    box-sizing: border-box;
    max-width: 90vw;
}

.center-content h1 {
    font-weight: 300;
    letter-spacing: 0.30em;
    font-size: 1.55rem;
    margin: 0 0 0.3em;
}

.center-content p {
    font-size: 0.8rem;
    opacity: 0.75;
    margin: 0 0 0.5em;
    letter-spacing: 0.08em;
}

.setTitleFade{
    animation: titleFade 1.6s ease-out forwards;
    animation-delay: 0.4s;
    filter: blur(1px);
}

@keyframes titleFade {
    0% { filter: blur(1px); }
    100% { filter: blur(0px); }
}

.eyecatch {
    width: 70vw;
    max-width: 150px;
    height: auto;
    margin-bottom: 1.2em;
    opacity: 0.9;
}

.sns-area {
    margin-top: 1em;
}

.x-link {
    display: inline-block;
    width: 34px;
    height: 34px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    filter: brightness(0.85);
    transition: 0.3s ease;
    background-image: url("../images/icon_x_logo.svg");
}

.x-link:hover {
    filter: brightness(1) drop-shadow(0 0 4px rgba(100,150,255,0.4));
}

.notice {
    display: block;
    margin-top: 1em;
    font-size: 0.68rem;
    opacity: 0.62;
    line-height: 1.6;
    letter-spacing: 0.06em;
}

a.link {
    color: var(--accent);
    text-decoration: none;
    position: relative;
    transition: 0.2s ease;
}
a.link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 0%;
    height: 1px;
    background: var(--accent);
    transition: width 0.3s ease;
}
a.link:hover::after {
    width: 100%;
}

#footlink{
    margin:2em 0;
}

.maxImg{
    max-width:100%;
}
.rain {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: none;
    overflow: hidden;
    z-index: 2;
}

.drop {
    position: absolute;
    width: 1px;
    height: 80px;
    background: linear-gradient(to bottom,
        rgba(255,255,255,0),
        rgba(255,255,255,0.3),
        rgba(150,180,255,0.05)
    );
    bottom: 100%;
    animation: fall linear infinite;
    filter: blur(0.3px);
}

@keyframes fall {
    to { transform: translateY(120vh); }
}

@media (min-width: 768px) {
    .center-content h1 { font-size: 2.25rem; }
    .center-content p { font-size: 1rem; }
}