/* Light site chrome shared by /vastu and /vastu-building. Neutral white, accent for text and thin rules only. */
:root{--vc-bg:#fff;--vc-ink:#242424;--vc-muted:#5f5f5a;--vc-rule:#e4e4e0;--vc-surface:#f4f4f2;--vc-accent:#315744;--vc-accent-ink:#fff;--vc-focus:#315744;color-scheme:light dark}
:root[data-theme=light]{color-scheme:light}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--vc-bg:#141817;--vc-ink:#eee;--vc-muted:#b4b9b6;--vc-rule:#2f3834;--vc-surface:#1b201e;--vc-accent:#a7cfb8;--vc-accent-ink:#10231a;--vc-focus:#a7cfb8}}
*{box-sizing:border-box}
html{background:var(--vc-bg)}
body{margin:0;background:var(--vc-bg);color:var(--vc-ink);font:16px/1.65 system-ui,-apple-system,"Segoe UI",sans-serif}
a{color:var(--vc-accent);text-underline-offset:4px}
a:focus-visible,button:focus-visible,select:focus-visible,summary:focus-visible,input:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--vc-focus);outline-offset:3px}
.vc-wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.vc-header{border-bottom:1px solid var(--vc-rule)}
.vc-header .vc-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.vc-brand{display:inline-flex;align-items:center;gap:10px;min-height:44px;color:var(--vc-ink);text-decoration:none;font:600 22px Georgia,serif}
.vc-brand img{width:32px;height:32px;display:block}
.vc-nav{display:flex;align-items:center;gap:4px}
.vc-nav a{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;color:var(--vc-ink);text-decoration:none;font-size:15px;border-bottom:2px solid transparent}
.vc-nav a:hover{border-bottom-color:var(--vc-rule)}
.vc-nav a[aria-current=page]{border-bottom-color:var(--vc-accent);color:var(--vc-accent);font-weight:600}
.vc-crumbs{font-size:14px;color:var(--vc-muted);padding:14px 0 0}
.vc-crumbs a{display:inline-flex;align-items:center;min-height:44px;color:var(--vc-muted)}
.vc-crumbs span{margin:0 6px}
.vc-tabs{display:flex;gap:4px;overflow-x:auto;border-bottom:1px solid var(--vc-rule);scrollbar-width:none;-webkit-overflow-scrolling:touch}
.vc-tabs::-webkit-scrollbar{display:none}
.vc-tabs a{flex:none;display:inline-flex;align-items:center;min-height:44px;padding:0 14px;color:var(--vc-muted);text-decoration:none;font-size:16px;border-bottom:2px solid transparent;margin-bottom:-1px}
.vc-tabs a:hover{color:var(--vc-ink)}
.vc-tabs a[aria-current=page]{color:var(--vc-ink);font-weight:600;border-bottom-color:var(--vc-ink)}
.vc-footer{border-top:1px solid var(--vc-rule);margin-top:56px;padding:20px 0 32px;font-size:14px;color:var(--vc-muted)}
.vc-footer .vc-wrap{display:flex;flex-wrap:wrap;gap:0 4px;align-items:center}
.vc-footer b{font-weight:600;color:var(--vc-ink);margin-right:12px}
.vc-footer a{display:inline-flex;align-items:center;min-height:44px;padding:0 10px;color:var(--vc-muted)}
.vc-footer a:hover{color:var(--vc-accent)}
.vc-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:8px;border:1px solid var(--vc-accent);background:var(--vc-accent);color:var(--vc-accent-ink);font:600 16px system-ui,sans-serif;text-decoration:none;cursor:pointer;transition:opacity .15s}
.vc-btn:hover{opacity:.9}
.vc-btn-ghost{background:transparent;color:var(--vc-accent)}
.vc-btn-ghost:hover{background:var(--vc-surface);opacity:1}
@media(max-width:600px){.vc-wrap{padding:0 16px}.vc-brand{font-size:20px}.vc-nav a{padding:0 9px;font-size:14px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}