/* =========================================================
   THE GRID / Global Navigation
   booth/ 他 下層ページ用に単独で読み込めるスコープ版
   本体レイアウトに影響させないため .v2-* クラスで閉じる
========================================================= */

.v2-header,
.v2-header * { box-sizing: border-box; }

.v2-header {
    --gh-ink: #2e2c29;
    --gh-sub: #6d6b67;
    --gh-mute: #a8a4a0;
    --gh-line: #e4e1db;
    --gh-accent: #81724E;

    position: fixed;
    top: 0; left: 0;
    width: 100%;
    height: 88px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: saturate(140%) blur(10px);
    -webkit-backdrop-filter: saturate(140%) blur(10px);
    border-bottom: 1px solid transparent;
    z-index: 1000;
    transition: 0.4s;
    font-family: "Noto Sans JP", "Yu Gothic", sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
.v2-header.is-scrolled {
    border-bottom-color: var(--gh-line);
    background: rgba(255, 255, 255, 0.95);
}

.v2-header a { text-decoration: none; color: inherit; transition: 0.4s; }
.v2-header ul { list-style: none; margin: 0; padding: 0; }

.v2-header-inner {
    max-width: 1440px;
    height: 100%;
    margin: 0 auto;
    padding: 0 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.v2-logo {
    display: flex !important;
    flex-direction: column;
    gap: 4px;
    color: var(--gh-ink);
}
.v2-logo-mark {
    font-family: "Cormorant Garamond", serif;
    font-weight: 500;
    font-size: 2.4rem;
    letter-spacing: 0.18em;
    line-height: 1;
}
.v2-logo-sub {
    font-family: "Jost", sans-serif;
    font-weight: 300;
    font-size: 0.95rem;
    letter-spacing: 0.28em;
    color: var(--gh-mute);
}

.v2-nav {
    display: flex;
    align-items: center;
    gap: 40px;
}
.v2-nav > ul {
    display: flex;
    gap: 28px;
}
.v2-nav > ul li { margin: 0 !important; }
.v2-nav > ul li a {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 6px 0;
    position: relative;
    color: var(--gh-ink);
}
.v2-nav > ul li a .en {
    font-family: "Cormorant Garamond", serif;
    font-size: 1.5rem;
    letter-spacing: 0.12em;
    font-style: italic;
    font-weight: 400;
    color: var(--gh-ink);
}
.v2-nav > ul li a .jp {
    font-size: 1.0rem;
    letter-spacing: 0.15em;
    color: var(--gh-mute);
    font-weight: 400;
}
.v2-nav > ul li a::after {
    content: "";
    position: absolute;
    left: 0; bottom: -4px;
    width: 0;
    height: 1px;
    background: var(--gh-accent);
    transition: 0.4s;
}
.v2-nav > ul li a:hover { opacity: 1; text-decoration: none; }
.v2-nav > ul li a:hover::after { width: 100%; }

.v2-cta {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 26px;
    background: var(--gh-ink);
    color: #fff !important;
    font-size: 1.2rem;
    letter-spacing: 0.2em;
    font-family: "Jost", sans-serif;
    font-weight: 300;
    transition: 0.4s;
}
.v2-cta:hover { background: var(--gh-accent); text-decoration: none; color: #fff !important; opacity: 1; }
.v2-cta svg { width: 22px; height: 10px; flex: 0 0 auto; }

.v2-burger {
    display: none;
    width: 32px;
    height: 24px;
    background: none;
    border: 0;
    padding: 0;
    position: relative;
    cursor: pointer;
}
.v2-burger span {
    position: absolute;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--gh-ink);
    transition: 0.4s;
}
.v2-burger span:nth-child(1) { top: 8px; }
.v2-burger span:nth-child(2) { bottom: 8px; }
.v2-burger.open span:nth-child(1) { top: 50%; transform: rotate(45deg); }
.v2-burger.open span:nth-child(2) { bottom: auto; top: 50%; transform: rotate(-45deg); }

/* 現在地ハイライト（booth リンク） */
.v2-nav > ul li a.is-current::after {
    width: 100%;
    background: var(--gh-accent);
}
.v2-nav > ul li a.is-current .en { color: var(--gh-accent); }

/* =========================================================
   Responsive
========================================================= */
@media (max-width: 960px) {
    .v2-header { height: 68px; }
    .v2-header-inner { padding: 0 24px; }
    .v2-logo-mark { font-size: 2rem; }
    .v2-logo-sub { font-size: 0.85rem; letter-spacing: 0.22em; }
    .v2-nav {
        position: fixed;
        top: 68px; left: 0;
        width: 100%;
        max-height: calc(100vh - 68px);
        background: #fff;
        flex-direction: column;
        gap: 0;
        align-items: stretch;
        padding: 20px 24px 40px;
        border-top: 1px solid var(--gh-line);
        overflow-y: auto;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-8px);
        transition: 0.4s;
    }
    .v2-nav.open { opacity: 1; visibility: visible; transform: none; }
    .v2-nav > ul { flex-direction: column; gap: 0; }
    .v2-nav > ul li { border-bottom: 1px solid var(--gh-line); }
    .v2-nav > ul li a {
        flex-direction: row;
        gap: 16px;
        align-items: baseline;
        padding: 18px 4px;
    }
    .v2-nav > ul li a .en { font-size: 1.7rem; }
    .v2-nav > ul li a .jp { font-size: 1.1rem; }
    .v2-cta { margin-top: 24px; justify-content: center; }
    .v2-burger { display: block; }
}