* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg: #ffffff;
    --bg-sub: #f7f8fa;
    --bg-card: #ffffff;
    --accent: #1a56db;
    --accent-dark: #1e40af;
    --accent-light: #dbeafe;
    --red: #dc2626;
    --red-light: #fee2e2;
    --text: #111827;
    --text-sub: #4b5563;
    --text-muted: #9ca3af;
    --border: #e5e7eb;
    --border-dark: #d1d5db;
    --shadow: 0 1px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Noto Sans JP", Meiryo, sans-serif;
    background: var(--bg-sub);
    color: var(--text);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

/* ---- Nav ---- */
.nav {
    background: #1e293b;
    position: sticky;
    top: 0;
    z-index: 100;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-bottom: 3px solid var(--accent);
}

.nav__list {
    display: flex;
    list-style: none;
    max-width: 960px;
    margin: 0 auto;
    padding: 0 8px;
}

.nav__link {
    display: block;
    padding: 13px 16px;
    color: #cbd5e1;
    text-decoration: none;
    font-size: 0.8125rem;
    white-space: nowrap;
    font-weight: 500;
    transition: color 0.15s, background 0.15s;
}

.nav__link:hover { color: #fff; background: rgba(255,255,255,0.08); }
.nav__link.is-active { color: #fff; background: rgba(255,255,255,0.12); font-weight: 700; }

.nav__auth { margin-left: auto; display: flex; align-items: center; padding-right: 8px; flex-shrink: 0; }
.nav__login-btn { background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.25); color: #fff; padding: 5px 14px; border-radius: 6px; font-size: 0.8rem; cursor: pointer; white-space: nowrap; }
.nav__login-btn:hover { background: rgba(255,255,255,0.2); }
.nav__user { display: flex; align-items: center; gap: 8px; }
.nav__admin-btn { display: inline-flex; align-items: center; gap: 6px; background: var(--accent); color: #fff; padding: 5px 14px; border-radius: 6px; font-size: 0.8rem; font-weight: 700; text-decoration: none; white-space: nowrap; }
.nav__admin-btn:hover { background: var(--accent-dark); }
.nav__logout-btn { background: transparent; border: 1px solid rgba(255,255,255,0.25); color: #cbd5e1; padding: 5px 12px; border-radius: 6px; font-size: 0.75rem; cursor: pointer; white-space: nowrap; }
.nav__logout-btn:hover { color: #fff; }

/* ---- Header ---- */
.header__inner {
    background: #ffffff;
    padding: 28px 20px 24px;
    text-align: center;
    position: relative;
    border-bottom: 1px solid #e5e7eb;
}

.header__title-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.header__admin-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--accent);
    border: 1px solid var(--accent);
    color: #fff;
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 0.8125rem;
    font-weight: 700;
    text-decoration: none;
    transition: background 0.15s;
    white-space: nowrap;
}

.header__admin-btn:hover {
    background: #1d4ed8;
}

.header__badge {
    display: inline-block;
    font-size: 0.625rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    color: var(--accent);
    border: 1px solid var(--accent);
    border-radius: 100px;
    padding: 2px 12px;
    margin-bottom: 10px;
}

.header__title {
    font-size: 1.75rem;
    font-weight: 800;
    color: #111827;
    letter-spacing: 0.05em;
}

.header__sub {
    font-size: 0.8125rem;
    color: #6b7280;
    margin-top: 4px;
}

/* ---- Page Wrap ---- */
.page-wrap { padding: 20px 12px; }
.page-wrap--sub { min-height: 60vh; }

.container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

/* ---- CTA Button ---- */
.cta-btn {
    display: block;
    text-align: center;
    padding: 15px 24px;
    background: var(--accent);
    color: #fff;
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 700;
    border-radius: 6px;
    transition: background 0.15s;
    border: none;
}
.cta-btn:hover { background: var(--accent-dark); }

/* ---- Section ---- */
.section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 20px;
    box-shadow: var(--shadow);
}

.section--services { padding: 16px; }
.section--attention { border-left: 4px solid var(--red); }
.section--guide    { border-left: 4px solid var(--accent); }
.section--hours    { border-left: 4px solid #059669; }

.section__text { font-size: 0.9375rem; color: var(--text-sub); }

/* ---- Section Heading ---- */
.section__heading {
    font-size: 0.9375rem;
    font-weight: 700;
    margin-bottom: 14px;
    padding: 8px 14px;
    border-radius: 4px;
}
.section__heading--warn  { background: var(--red-light); color: var(--red); }
.section__heading--guide { background: var(--accent-light); color: var(--accent-dark); }
.section__heading--hours { background: #d1fae5; color: #065f46; }

.section__body { font-size: 0.9375rem; color: var(--text-sub); }

/* ---- Services Grid ---- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-top: 24px;
}

.service-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 30px 12px 24px;
    border-radius: 6px;
    text-decoration: none;
    color: var(--text);
    border: 1px solid var(--border);
    background: var(--bg-card);
    transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
    position: relative;
}

.service-card:hover {
    border-color: var(--accent);
    box-shadow: 0 4px 16px rgba(26,86,219,0.1);
    transform: translateY(-2px);
}

.service-card__icon { font-size: 2.5rem; line-height: 1; }
.service-card__title { font-size: 1.0625rem; font-weight: 700; text-align: center; word-break: keep-all; }
.service-card__desc  { font-size: 0.8125rem; color: var(--text-muted); text-align: center; word-break: keep-all; }

/* ---- Lists ---- */
.attention-list, .guide-list { padding-left: 20px; }
.attention-list li, .guide-list li { margin-bottom: 7px; padding-left: 3px; }

/* ---- Hours Table ---- */
.hours-table { width: 100%; border-collapse: collapse; font-size: 0.8125rem; }
.hours-table th, .hours-table td { border: 1px solid var(--border); padding: 9px 6px; text-align: center; }
.hours-table thead th { background: #059669; color: #fff; font-weight: 700; }
.hours-table tbody th { background: #f0fdf4; font-weight: 700; color: #065f46; white-space: nowrap; }
.hours-table tbody td { background: var(--bg); color: var(--text); }

/* ---- Sub pages ---- */
.sub-page {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 28px 24px;
    box-shadow: var(--shadow);
}

.sub-page__title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 2px solid var(--border);
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 10px;
}

.sub-page__title::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 1.4em;
    background: var(--accent);
    border-radius: 2px;
    flex-shrink: 0;
}

.sub-page__content { font-size: 0.9375rem; line-height: 1.9; color: var(--text-sub); }

.sub-page__back {
    margin-top: 24px;
    text-align: center;
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.sub-page__back-link {
    display: inline-block;
    padding: 10px 24px;
    color: var(--accent);
    background: var(--accent-light);
    border: 1px solid #bfdbfe;
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 700;
    transition: background 0.15s;
}
.sub-page__back-link:hover { background: #bfdbfe; }

/* ---- Game grid (石垢販売) ---- */
.game-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 14px;
    margin: 16px 0;
}

.game-card {
    display: block;
    text-decoration: none;
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    border: 2px solid var(--border);
    transition: all 0.2s;
    aspect-ratio: 16/9;
    background: var(--bg-sub);
}

.game-card:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.game-card img { width: 100%; height: 100%; object-fit: cover; display: block; }

.game-card__label {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    padding: 32px 10px 10px;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: #fff;
    font-weight: 700;
    font-size: 0.875rem;
}

/* ---- Product grid (VM style) ---- */
.vm-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 14px;
    margin-bottom: 20px;
}

.vm-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.2s;
    cursor: pointer;
}

.vm-card:hover { border-color: var(--accent); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.vm-card__top { padding: 16px 16px 12px; border-bottom: 1px solid var(--border); }
.vm-card__game { font-size: 0.6875rem; color: var(--accent); font-weight: 700; margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.06em; }
.vm-card__title { font-size: 0.9375rem; font-weight: 700; color: var(--text); line-height: 1.4; }
.vm-card__body { padding: 10px 16px; }
.vm-card__detail { font-size: 0.8125rem; color: var(--text-sub); padding: 3px 0; display: flex; align-items: center; gap: 6px; }
.vm-card__detail::before { content: '・'; color: var(--accent); }
.vm-card__foot { padding: 12px 16px; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--border); background: #fafafa; }
.vm-card__price { font-size: 1.25rem; font-weight: 800; color: var(--red); }
.vm-card__price small { font-size: 0.75rem; font-weight: 400; color: var(--text-muted); }
.vm-card__btn { padding: 7px 20px; border: none; border-radius: 5px; background: var(--accent); color: #fff; font-weight: 700; font-size: 0.8125rem; cursor: pointer; transition: background 0.15s; }
.vm-card__btn:hover { background: var(--accent-dark); }
.vm-card__btn:disabled { background: var(--text-muted); cursor: not-allowed; }

/* VM filters */
.vm-filter { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.vm-filter button { padding: 6px 16px; border: 1px solid var(--border); border-radius: 100px; background: var(--bg); color: var(--text-sub); cursor: pointer; font-size: 0.8125rem; transition: all 0.15s; }
.vm-filter button:hover { border-color: var(--accent); color: var(--accent); }
.vm-filter button.active { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 700; }

/* States */
.empty-state { text-align: center; padding: 48px 20px; color: var(--text-muted); }
.empty-state i { font-size: 2.5rem; margin-bottom: 12px; opacity: 0.3; display: block; }
.loading { text-align: center; padding: 48px; color: var(--text-muted); }
.loading i { font-size: 1.75rem; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- Modal ---- */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 200; display: none; align-items: center; justify-content: center; padding: 20px; }
.modal-overlay--open { display: flex; }
.modal { background: #fff; border-radius: 10px; max-width: 460px; width: 100%; max-height: 90vh; overflow-y: auto; padding: 24px; animation: fadeIn 0.2s ease; border: 1px solid var(--border); }
@keyframes fadeIn { from { opacity: 0; transform: scale(0.97); } to { opacity: 1; transform: scale(1); } }
.modal h2 { font-size: 1rem; font-weight: 700; margin-bottom: 14px; color: var(--text); }
.modal-body { font-size: 0.875rem; color: var(--text-sub); line-height: 1.7; margin-bottom: 18px; }
.modal-body strong { color: var(--text); }
.pay-btns { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 14px; }
.pay-btn { padding: 16px; border: 2px solid var(--border); border-radius: 8px; background: var(--bg); cursor: pointer; text-align: center; transition: all 0.15s; color: var(--text-sub); }
.pay-btn:hover { border-color: var(--accent); color: var(--text); }
.pay-btn.selected { border-color: var(--accent); background: var(--accent-light); color: var(--accent-dark); }
.pay-btn__icon { font-size: 1.5rem; margin-bottom: 5px; }
.pay-btn__label { font-size: 0.8125rem; font-weight: 700; }
.kyash-area, .paypay-area { display: none; }
.kyash-area--open, .paypay-area--open { display: block; animation: fadeIn 0.2s ease; }
.link-box { display: flex; gap: 8px; margin: 10px 0; }
.link-box input { flex: 1; padding: 10px 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 0.875rem; }
.link-box button { padding: 10px 18px; border: none; border-radius: 6px; background: var(--accent); color: #fff; font-weight: 700; cursor: pointer; white-space: nowrap; }
.link-box button:disabled { opacity: 0.5; }
.result-area { display: none; text-align: center; padding: 16px 0; }
.result-area--open { display: block; animation: fadeIn 0.3s ease; }
.result-area .success-icon { font-size: 2.5rem; color: #16a34a; margin-bottom: 10px; }
.creds { margin: 14px auto; padding: 14px 16px; background: #f8fafc; border: 1px solid var(--border); border-radius: 8px; font-family: monospace; font-size: 0.875rem; word-break: break-all; color: var(--text); text-align: left; }
.copy-btn { padding: 9px 24px; border: none; border-radius: 6px; background: var(--accent); color: #fff; font-weight: 700; cursor: pointer; }
.back-link { display: inline-flex; align-items: center; gap: 5px; color: var(--text-muted); font-size: 0.875rem; text-decoration: none; margin-bottom: 14px; }
.back-link:hover { color: var(--accent); }

/* ---- Footer ---- */
.footer { background: #1e293b; border-top: 3px solid var(--accent); }
.footer__inner { max-width: 800px; margin: 0 auto; padding: 28px 20px 20px; text-align: center; }
.footer__sns { display: flex; justify-content: center; gap: 12px; margin-bottom: 16px; }
.footer__sns-link {
    display: flex; align-items: center; justify-content: center;
    width: 42px; height: 42px; border-radius: 8px;
    background: rgba(255,255,255,0.1); color: #cbd5e1;
    text-decoration: none; font-size: 1.125rem;
    border: 1px solid rgba(255,255,255,0.15);
    transition: all 0.15s;
}
.footer__sns-link:hover { background: var(--accent); border-color: var(--accent); color: #fff; transform: translateY(-2px); }
.footer__copy { font-size: 0.75rem; color: #64748b; }

/* ---- Admin link (hidden) ---- */
.admin-link { opacity: 0; font-size: 0.6rem; color: transparent; text-decoration: none; display: block; padding: 4px; }
.admin-link:hover { opacity: 0.2; color: #fff; }

/* ---- Powered ---- */
.powered { text-align: center; padding: 8px; border-top: 1px solid rgba(255,255,255,0.05); }
.powered p { font-size: 0.6875rem; color: #475569; letter-spacing: 0.12em; }

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-sub); }
::-webkit-scrollbar-thumb { background: var(--border-dark); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }
::selection { background: rgba(26,86,219,0.2); }

/* ---- Responsive ---- */
@media (max-width: 600px) {
    .nav__link { padding: 11px 12px; font-size: 0.75rem; }
    .header__inner { padding: 20px 16px 18px; }
    .header__title { font-size: 1.5rem; }
    .services-grid { gap: 8px; }
    .service-card { padding: 18px 10px 14px; }
    .service-card__icon { font-size: 1.75rem; }
    .service-card__title { font-size: 0.8125rem; }
    .service-card__desc { font-size: 0.625rem; }
    .section { padding: 16px 14px; }
    .hours-table { font-size: 0.75rem; }
    .hours-table th, .hours-table td { padding: 7px 3px; }
    .sub-page { padding: 20px 14px; }
    .game-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
}