:root { color-scheme: dark; }
html[data-theme="light"] { color-scheme: light; --bg:#eef2f7; --bg-elevated:#ffffff; --bg-soft:#f6f8fb; --panel:rgba(255,255,255,.92); --text:#111827; --muted:#5f6b7c; --line:rgba(15,23,42,.12); --shadow:0 25px 60px rgba(15,23,42,.12); }
html[data-theme="light"] body { background:#eef2f7; color:#111827; }
html[data-theme="light"] .site-header.solid, html[data-theme="light"] .site-header.scrolled { background:rgba(255,255,255,.9); }
html[data-theme="light"] .main-nav>a, html[data-theme="light"] .brand, html[data-theme="light"] .thread-body, html[data-theme="light"] .profile-card, html[data-theme="light"] .support-card { color:#172033; }
html[data-theme="light"] .main-nav>a:hover, html[data-theme="light"] .main-nav>a.active { background:rgba(15,23,42,.08); color:#050a14; }
html[data-theme="light"] .site-footer, html[data-theme="light"] .admin-card, html[data-theme="light"] .thread-post, html[data-theme="light"] .profile-card, html[data-theme="light"] .support-card, html[data-theme="light"] .game-detail-card { background:#fff; }
html[data-theme="light"] .thread-page, html[data-theme="light"] .profile-page, html[data-theme="light"] .support-page, html[data-theme="light"] .staff-page, html[data-theme="light"] .games-page { background:linear-gradient(180deg,#f5f7fb,#eaf0f7); }
.theme-toggle { width:40px;height:40px;display:grid;place-items:center;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.04);color:var(--text);cursor:pointer; }
.theme-toggle:hover { background:rgba(255,255,255,.09); }
.theme-toggle svg { width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round; }
.auth-quick-nav { display:flex;align-items:center;gap:16px; }
.auth-quick-nav a { color:#a7b2c5;font-size:.8rem;font-weight:700; }
.auth-quick-nav a:hover { color:white; }
html[data-theme="light"] .auth-quick-nav a { color:#42516a; }
@media(max-width:760px){.auth-quick-nav a:not(.auth-forums-link){display:none}.theme-toggle{width:38px;height:38px}}
html[data-theme="light"] .admin-body,html[data-theme="light"] .admin-main{background:#eef2f7;color:#172033}html[data-theme="light"] .admin-sidebar{background:#fff;border-color:rgba(15,23,42,.1)}html[data-theme="light"] .admin-topbar{background:rgba(255,255,255,.9);border-color:rgba(15,23,42,.1)}html[data-theme="light"] .admin-nav button,html[data-theme="light"] .admin-nav a{color:#52617a}html[data-theme="light"] .admin-nav button.active,html[data-theme="light"] .admin-nav a:hover{background:#edf2f8;color:#101827}html[data-theme="light"] .admin-stat,html[data-theme="light"] .admin-card,html[data-theme="light"] .admin-dashboard-hero{background:#fff;color:#172033;border-color:rgba(15,23,42,.1)}html[data-theme="light"] .admin-table td,html[data-theme="light"] .admin-table-title strong{color:#253147}html[data-theme="light"] .admin-table th{color:#65738a}html[data-theme="light"] .admin-card-header,html[data-theme="light"] .admin-table td,html[data-theme="light"] .admin-activity{border-color:rgba(15,23,42,.09)}html[data-theme="light"] .admin-mode-badge{background:#f1f5f9;color:#41516a}html[data-theme="light"] .admin-preview-notice{background:#fff9e8;color:#6e5721}html[data-theme="light"] .member-auth-card,html[data-theme="light"] .account-card,html[data-theme="light"] .staff-login-card{background:#fff;color:#172033}html[data-theme="light"] .member-input,html[data-theme="light"] .staff-input-wrap{background:#f5f7fb;border-color:rgba(15,23,42,.12)}html[data-theme="light"] .member-input input,html[data-theme="light"] .member-input textarea,html[data-theme="light"] .member-input select,html[data-theme="light"] .staff-input-wrap input{color:#172033}
html[data-theme="light"] .forum-hero,
html[data-theme="light"] .forum-page,
html[data-theme="light"] .category-page,
html[data-theme="light"] .thread-page {
  background: linear-gradient(180deg, #f7f9fc 0%, #edf2f7 100%);
}
html[data-theme="light"] .forum-section,
html[data-theme="light"] .forum-category-row,
html[data-theme="light"] .forum-topic-card,
html[data-theme="light"] .forum-sidebar .sidebar-card,
html[data-theme="light"] .thread-post,
html[data-theme="light"] .reply-card,
html[data-theme="light"] .thread-side .sidebar-card,
html[data-theme="light"] .forum-modal-card {
  background: #ffffff;
  border-color: rgba(15, 23, 42, .12);
  color: #172033;
  box-shadow: 0 20px 45px rgba(15, 23, 42, .08);
}
html[data-theme="light"] .forum-section-heading,
html[data-theme="light"] .thread-author {
  background: linear-gradient(180deg, rgba(15, 23, 42, .025), rgba(15, 23, 42, .01));
  border-color: rgba(15, 23, 42, .10);
}
html[data-theme="light"] .forum-category-copy strong,
html[data-theme="light"] .forum-latest strong,
html[data-theme="light"] .forum-section-heading h2,
html[data-theme="light"] .thread-heading h1,
html[data-theme="light"] .thread-author-meta strong,
html[data-theme="light"] .reply-card h2,
html[data-theme="light"] .sidebar-card h2 {
  color: #111827;
}
html[data-theme="light"] .forum-category-copy small,
html[data-theme="light"] .forum-latest small,
html[data-theme="light"] .thread-author small,
html[data-theme="light"] .thread-post-top,
html[data-theme="light"] .sidebar-card p,
html[data-theme="light"] .breadcrumbs {
  color: #637087;
}
html[data-theme="light"] .forum-search,
html[data-theme="light"] .forum-editor,
html[data-theme="light"] .forum-editor textarea,
html[data-theme="light"] .editor-preview {
  background: #f8fafc;
  color: #172033;
  border-color: rgba(15, 23, 42, .13);
}