:root{color-scheme:light}
.theme-toggle{display:flex;justify-content:center;align-items:center;min-height:44px;padding:10px 12px;margin-top:28px;border:1px solid var(--line);border-radius:4px;background:transparent;color:var(--ink);font-size:12px;font-weight:500}
.theme-toggle:hover{background:var(--surface)}
.theme-toggle .to-light,.brand .theme-logo-dark,.site-footer .theme-logo-dark{display:none}
:root[data-theme="dark"]{color-scheme:dark;--navy:#f1e7ce;--ink:#eee9df;--gold:#d8b746;--gold-dark:#dec574;--paper:#0d142b;--surface:#1a2541;--line:#34405a;--slate:#b4bed0;--green:#77c89c}
[data-theme="dark"] .theme-toggle .to-dark,[data-theme="dark"] .theme-logo-light{display:none}
[data-theme="dark"] .theme-toggle .to-light{display:inline}
[data-theme="dark"] .brand .theme-logo-dark,[data-theme="dark"] .site-footer .theme-logo-dark{display:block}
[data-theme="dark"] .sidebar{background:#101a33}
[data-theme="dark"] .sidebar nav a:hover,[data-theme="dark"] .choice:hover,[data-theme="dark"] .product-tabs button:hover{background:#222e49}
[data-theme="dark"] .sidebar nav img,[data-theme="dark"] .topline img,[data-theme="dark"] .text-link img,[data-theme="dark"] .menu-toggle img,[data-theme="dark"] .product-tabs img,[data-theme="dark"] .booth-rows img{filter:invert(.88) sepia(.2)}
[data-theme="dark"] .ledger-cell:not(:last-child):after{filter:invert(.85) sepia(.5)}
[data-theme="dark"] .ledger-cell{background:#141e37;border-color:#2b3852}
[data-theme="dark"] .cell-body dl,[data-theme="dark"] .detail-data div{border-color:var(--line)}
[data-theme="dark"] .ledger-cell.is-active{background:#2b2a28;border-color:var(--gold)}
[data-theme="dark"] .mini-tag{background:#ebe5d6;color:#142238;border-color:#b8ac88}
[data-theme="dark"] .choice.selected{background:#d8b746;color:#182039;border-color:#d8b746}
[data-theme="dark"] .product-tabs button[aria-selected=true]{background:#293044;color:#f1dfab}
[data-theme="dark"] #product-detail,[data-theme="dark"] .case-study,[data-theme="dark"] #email-result{background:#17223b;border-color:#34405a}
[data-theme="dark"] .case-study{border-left-color:var(--gold)}
[data-theme="dark"] .contact-panel{background:#141e37}
[data-theme="dark"] input,[data-theme="dark"] select,[data-theme="dark"] textarea{background:#0f1930;border-color:#53617b;color:var(--ink)}
[data-theme="dark"] input::placeholder,[data-theme="dark"] textarea::placeholder{color:#a5b0c4}
[data-theme="dark"] .event-panel{background:#101e33;border-color:#3b4a61;box-shadow:none}
[data-theme="dark"] .skip{background:var(--gold);color:#152038}
[data-theme="dark"] :is(button,a,input,select,textarea,[tabindex]):focus-visible{outline-color:#e2c565}
[data-theme="dark"] .status-dot.neutral{background:#8e9bb0}
@media(max-width:700px){
  .sidebar{gap:8px}.brand{margin-right:auto}.brand img{width:120px}.theme-toggle{order:1;flex-shrink:0;margin:0;padding:9px 10px;font-size:11px}.menu-toggle{order:2;padding:10px;flex-shrink:0}.menu-toggle span{display:none}
  [data-theme="dark"] .sidebar,[data-theme="dark"] .sidebar nav{background:#101a33}
}