/* ===== reset-ish ===== */
* {
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    height: 100%;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, "Noto Sans JP", sans-serif;
    line-height: 1.55;
    color: var(--fg);
    background: var(--bg);
}

/* ===== themes ===== */
:root {
    --wrap: 980px;

    --bg: #0b0d12;
    --fg: #e8ecff;
    --muted: rgba(232, 236, 255, .72);
    --card: rgba(255, 255, 255, .06);
    --card2: rgba(255, 255, 255, .09);
    --border: rgba(255, 255, 255, .12);
    --shadow: 0 18px 60px rgba(0, 0, 0, .35);

    --dot: rgba(232, 236, 255, .70);
    --dotActive: #ffffff;

    --radius: 18px;
    --pad: 20px;

    --topbar-h: 96px;
    /* .topbar の実際の高さに合わせて調整 */
    
}

html[data-theme="light"] {
    --bg: #f6f7fb;
    --fg: #0b0d12;
    --muted: rgba(11, 13, 18, .65);
    --card: rgba(11, 13, 18, .05);
    --card2: rgba(11, 13, 18, .08);
    --border: rgba(11, 13, 18, .12);
    --shadow: 0 18px 60px rgba(0, 0, 0, .12);

    --dot: rgba(11, 13, 18, .55);
    --dotActive: #0b0d12;

    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--topbar-h) + 16px);
}


/* ===== background ===== */
.bg {
    position: fixed;
    inset: 0;
    z-index: -1;
    background:
        radial-gradient(900px 500px at 20% 10%, rgba(120, 160, 255, .25), transparent 60%),
        radial-gradient(700px 400px at 80% 30%, rgba(187, 205, 194, 0.18), transparent 60%),
        radial-gradient(900px 600px at 50% 90%, rgba(196, 225, 218, 0.12), transparent 60%),
        linear-gradient(180deg, rgba(0, 0, 0, .15), transparent 30%, rgba(0, 0, 0, .25));
    filter: saturate(1.1) contrast(1.05);
}

/* ===== layout ===== */
.wrap {
    width: min(var(--wrap), calc(100% - 32px));
    margin: 0 auto;
}

.topbar {
    position: sticky;
    top: 0;
    backdrop-filter: blur(10px);
    background: color-mix(in oklab, var(--bg) 75%, transparent);
    border-bottom: 1px solid var(--border);
    z-index: 10;
}

.topbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 0;
    gap: 16px;
}

.brand__kicker {
    font-size: 12px;
    letter-spacing: .12em;
    text-transform: uppercase;
    opacity: .8;
}

.brand__title {
    margin: 2px 0 0;
    font-size: 18px;
}

.brand__sub {
    margin: 2px 0 0;
    font-size: 13px;
    color: var(--muted);
}

.theme {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.chip {
    border: 1px solid var(--border);
    background: color-mix(in oklab, var(--card) 85%, transparent);
    color: var(--fg);
    padding: 8px 12px;
    border-radius: 999px;
    cursor: pointer;
}

.chip:hover {
    border-color: color-mix(in oklab, var(--border) 60%, var(--fg));
}

.section {
    padding: 26px 0 10px;
}

section[id] {
    scroll-margin-top: calc(var(--topbar-h) + 16px);
}

.section__title {
    margin: 0 0 14px;
    font-size: 14px;
    letter-spacing: .10em;
    text-transform: uppercase;
    opacity: .9;
}

.lead {
    margin: 0 0 14px;
    max-width: 70ch;
}

.muted {
    color: var(--muted);
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: var(--pad);
}

.profile {
    display: grid;
    grid-template-columns: 80px minmax(0, 420px);
    gap: 14px;
    align-items: start;
}

.avatar {
    width: 80px;
    height: 80px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background-image: url(img/icon_me.jpg);
    background-repeat: no-repeat;
    background-size: 80px;
}

/* tiles */
.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

.tile {
    display: grid;
    gap: 10px;
    text-decoration: none;
    color: inherit;
    padding: 14px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--card);
}

.tile:hover {
    border-color: color-mix(in oklab, var(--border) 55%, var(--fg));
}

.tile__thumb {
    height: 120px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--card2);
    background-size:cover;
    box-shadow: inset 0 0 50px var(--shadow);
}

.cnw{
    background-image: url(img/cnw.jpg);
}
.tile__title {
    font-weight: 650;
    font-size: 14px;
}

.tile__desc {
    font-size: 13px;
}

/* info list */
.list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 10px;
}

.list li {
    display: grid;
    grid-template-columns: 90px 1fr;
    gap: 10px;
}

.k {
    opacity: .8;
    letter-spacing: .06em;
}

.v {
    color: var(--muted);
}

/* contact links */
.links {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.link {
    color: inherit;
    text-decoration: none;
    border-bottom: 1px solid transparent;
}

.link:hover {
    border-bottom-color: currentColor;
}

/* FAQ */
.faq {
    display: grid;
    gap: 10px;
}

.faq__item {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--card);
    overflow: clip;
}

.faq__q {
    cursor: pointer;
    padding: 14px 16px;
    font-weight: 650;
    list-style: none;
}

.faq__q::-webkit-details-marker {
    display: none;
}

.faq__a {
    padding: 0 16px 14px;
    font-size: 13px;
}

/* footer */
.footer {
    padding: 30px 0 60px;
    color: var(--muted);
}

/* dot nav (left) */
.dotnav {
    position: fixed;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    display: grid;
    gap: 12px;
    z-index: 20;
}

.dotnav__item {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--muted);
    user-select: none;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: var(--dot);
    box-shadow: 0 0 0 6px transparent;
    transition: box-shadow .2s ease, background .2s ease, transform .2s ease;
}

.dotnav__item:hover .dot {
    transform: scale(1.05);
    box-shadow: 0 0 0 6px color-mix(in oklab, var(--dot) 15%, transparent);
}

.dotnav__item.is-active {
    color: var(--fg);
}

.dotnav__item.is-active .dot {
    background: var(--dotActive);
    box-shadow: 0 0 0 6px color-mix(in oklab, var(--dotActive) 12%, transparent);
}

.label {
    font-size: 12px;
    letter-spacing: .06em;
}

/* responsive */
@media (max-width: 900px) {
    .grid {
        grid-template-columns: 1fr;
    }

    .dotnav {
        position: static;
        transform: none;
        width: min(var(--wrap), calc(100% - 32px));
        margin: 14px auto 0;
        grid-auto-flow: column;
        justify-content: start;
        overflow-x: auto;
        padding-bottom: 4px;
    }
}

/* ===== reveal animation ===== */
.reveal {
    opacity: 0;
    transform: translateY(10px);
    filter: blur(2px);
    transition:
        opacity .55s ease,
        transform .65s ease,
        filter .65s ease;
    will-change: opacity, transform, filter;
}

.reveal.is-visible {
    opacity: 1;
    transform: none;
    filter: none;
}

/* 好み：ユーザーが動きを減らす設定ならアニメしない */
@media (prefers-reduced-motion: reduce) {
    .reveal {
        transition: none;
        transform: none;
        filter: none;
        opacity: 1;
    }
}

/*ノイズ背景*/
#bgFluid {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}