/* Visitor-selected appearance. Brand source images remain unchanged. */
:root{color-scheme:dark}
.theme-choices{display:inline-flex;gap:4px;padding:4px;border:1px solid var(--line);background:var(--panel)}
.theme-choices button{display:flex;align-items:center;justify-content:center;gap:10px;min-height:44px;padding:10px 20px;font:13px var(--mono);color:var(--text);border:1px solid transparent}
.theme-choices button[aria-pressed=true]{background:var(--light);color:var(--bg);border-color:var(--light)}
.theme-choices button:hover:not([aria-pressed=true]){border-color:var(--accent);color:var(--light)}
.intro-theme{margin-top:26px}.intro-theme>p{font:11px/1.8 var(--mono);letter-spacing:.12em;color:var(--muted);margin-bottom:12px}
.theme-toggle{min-width:44px;min-height:44px;display:flex;align-items:center;gap:8px;padding:8px;border:1px solid var(--line);font:11px var(--mono);white-space:nowrap;color:var(--light)}
.theme-toggle:hover{border-color:var(--accent)}[data-theme-icon]{font-size:22px;line-height:1}
.footer-theme{position:relative;max-width:1260px;margin:30px auto 0;display:flex;align-items:center;gap:20px;flex-wrap:wrap}.footer-theme>span{font:12px/1.8 var(--mono);letter-spacing:.1em;color:var(--muted)}
@media(min-width:1201px) and (max-width:1550px){.navigation{gap:16px}.navigation nav{font-size:12px;gap:16px}.theme-toggle [data-theme-label]{display:none}}
@media(max-width:720px){.navigation{gap:10px}.theme-toggle [data-theme-label]{display:none}.intro-theme{margin-top:20px}.footer-theme{gap:12px}.theme-choices button{padding:10px 16px}}

html[data-theme=light]{color-scheme:light;--bg:#f3f5f8;--panel:#ffffffeb;--line:#b6c2d2;--light:#14243e;--text:#34465f;--muted:#51647d;--accent:#806019;--gold:#806019}
[data-theme=light] .backdrop{background:repeating-linear-gradient(45deg,#f3f5f8 0 4px,#edf1f6 4px 8px)}
[data-theme=light] .scanlines{opacity:.08}
[data-theme=light] .vignette{background:radial-gradient(ellipse at 50% 25%,#ffffff55,#ccd6e52b)}
[data-theme=light] .navigation{background:linear-gradient(#fffffffa,#f3f5f8ed)}
[data-theme=light] .navigation nav{background-color:transparent}
[data-theme=light] .hud>i{border-color:#98a9be}
[data-theme=light] .rail{color:#63728a}
[data-theme=light] .panel{box-shadow:inset 0 1px #fff,0 20px 65px -45px #31445c40}
[data-theme=light] .panel-label{background:linear-gradient(#eef2f7,#e7edf3)}
[data-theme=light] .outline{-webkit-text-stroke-color:#526681}
[data-theme=light] .hero-scroll:hover{background:#14243e08}
[data-theme=light] .project-tabs button[aria-selected=true]{background:#14243e0b}
[data-theme=light] .project-tabs button span{color:var(--muted)}
[data-theme=light] .project-status{border-color:#9b885d}
[data-theme=light] .milestones article:hover{background:#14243e06}
[data-theme=light] .row-number{color:var(--muted)}
[data-theme=light] .gallery-grid{scrollbar-color:#806019 #e1e7ef}
[data-theme=light] .gallery-grid figcaption{background:#fff}
[data-theme=light] footer{background:#e7ecf3}
[data-theme=light] .footer-watermark{color:#14243e0a}
[data-theme=light] .back-to-top{background:#fffffff5;border-color:#8b9cb3;box-shadow:0 5px 25px #23334c15}
[data-theme=light] .back-to-top:hover{background:#e7ecf3;border-color:var(--accent)}
[data-theme=light] dialog{background:#f8fafc;border-color:#8b9cb3}
[data-theme=light] dialog::backdrop{background:#14243e80}
[data-theme=light] .intro{background:radial-gradient(ellipse at 45% 0,#fff,#e9eef5 74%)}
[data-theme=light] .enter{border-color:#8b9cb3}
[data-theme=light] .enter:hover{background:#14243e08;border-color:var(--accent)}
[data-theme=light] .enter-rule{background:#8b9cb3}
/* Recolour only the approved logo's visible pixels; preserve its alpha and shape. */
[data-theme=light] .nav-brand,[data-theme=light] .intro-logo{background:transparent;border:0}
[data-theme=light] .intro-logo{padding:0}
[data-theme=light] .white-logo{filter:url("#ongoro-navy")!important}
[data-theme=light] .project-visual{--muted:#a6b5cf;--line:#3d4c65}
[data-theme=light] .process{color:#afbfdb}
[data-theme=light] .tjipee-brand{background:#101827;padding:20px;filter:none}
/* Tjipee keeps its existing monochrome treatment within a navy wrapper. */
[data-theme=light] .tjipee-brand-plate{background:#101827;padding:24px;border:1px solid #26324b}
[data-theme=light] .tjipee-brand-plate .tjipee-brand{background:transparent;padding:0;filter:brightness(0) invert(1)}
[data-theme=light] .tender-card{background:var(--panel)}
[data-theme=light] .procurement-button:not(.subtle){background:#14243e;color:#fff;border-color:#14243e}
[data-theme=light] .procurement-button:not(.subtle):hover{background:#293e5f}
[data-theme=light] .procurement-button.subtle{color:var(--light)}
[data-theme=light] .tender-actions a{color:#fff}
[data-theme=light] #bidder-form input:not([type=checkbox]){background:#fff;border-color:#8b9cb3;color:var(--light)}
[data-theme=light] .is-error{color:#a1261e}
@media(max-width:1200px){[data-theme=light] .navigation nav{background:#f8fafc}}