:root{--viva-header-height:108px;--header-height:108px;--site-header-height:108px;--vh-surface:#fff;--vh-ink:#262626;--vh-muted:#5e5e5e;--vh-green:#0b6b45;--vh-tint:#e6f2ec;--vh-line:#e5e5e5}
html[data-theme=dark],body.dark{--vh-surface:#1e1e1e;--vh-ink:#ededed;--vh-muted:#a3a3a3;--vh-green:#4cc08a;--vh-tint:#183529;--vh-line:#414141}
html{scroll-padding-top:calc(var(--viva-header-height) + 16px)}
.viva-header{position:sticky;top:0;z-index:250;width:100%;height:var(--viva-header-height);background:var(--vh-surface);border-bottom:1px solid var(--vh-line);color:var(--vh-ink);box-sizing:border-box}
.viva-header:before{content:'';display:block;height:4px;background:linear-gradient(to right,#0b6b45 40%,#c83d3d 40%)}
.viva-header-inner{width:min(1160px,calc(100% - 96px));height:calc(var(--viva-header-height) - 5px);margin:auto;display:flex;align-items:center;justify-content:space-between;gap:24px}
.viva-header .viva-brand{display:flex;align-items:center;gap:12px;margin:0;padding:0;color:var(--vh-green);font-family:'Momo Trust Display',sans-serif;font-weight:400;font-size:31px;line-height:1.2;letter-spacing:-.025em;text-decoration:none;white-space:nowrap}
.viva-brand img{width:40px;height:40px;object-fit:contain;flex-shrink:0}
.viva-header-actions{display:flex;align-items:center;gap:24px}
.viva-header .viva-nav{display:flex;align-items:center;gap:24px;font:500 15px/1.4 Inter,Arial,sans-serif;letter-spacing:0}
.viva-header .viva-nav a{display:block;color:var(--vh-ink);text-decoration:none;padding:8px 0}
.viva-header .viva-nav a:hover,.viva-header .viva-nav a[aria-current=page]{text-decoration:underline;text-underline-offset:5px}
.viva-preferences{position:relative;flex-shrink:0}
.viva-header button{font:500 14px/1.4 Inter,Arial,sans-serif;cursor:pointer}
.viva-menu-button{display:grid;place-items:center;width:48px;height:48px;border:1px solid var(--vh-line);border-radius:8px;background:var(--vh-surface);color:var(--vh-ink);padding:0}
.viva-header svg{width:22px;height:22px;flex-shrink:0}
.viva-menu{position:absolute;top:calc(100% + 12px);right:0;width:272px;max-width:calc(100vw - 40px);padding:20px;background:var(--vh-surface);color:var(--vh-ink);border:1px solid var(--vh-line);border-radius:16px;box-shadow:0 8px 24px #0002;text-align:left;font:400 14px/1.5 Inter,Arial,sans-serif}
.viva-menu[hidden]{display:none!important}.viva-setting+.viva-setting{margin-top:20px}.viva-setting-label{display:block;margin-bottom:8px;color:var(--vh-muted);font-size:14px}
.viva-segment{display:flex;border:1px solid var(--vh-line);border-radius:8px;padding:3px;gap:4px}
.viva-segment button{flex:1;min-height:44px;border:0;border-radius:5px;background:transparent;color:var(--vh-ink)}
.viva-segment button[aria-pressed=true]{background:var(--vh-tint);color:var(--vh-green)}
.viva-theme-button{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;min-height:48px;border:1px solid var(--vh-line);border-radius:8px;background:transparent;color:var(--vh-ink);padding:8px 12px}
.viva-header :is(a,button):focus-visible{outline:2px solid var(--vh-green);outline-offset:3px}
.viva-menu .viva-mobile-nav{display:none}.viva-menu-status{margin:8px 0 0;color:var(--vh-muted)}.viva-menu-status:empty{display:none}
@media(max-width:1050px){.viva-header-actions>.viva-nav{display:none}.viva-menu .viva-mobile-nav{display:flex;flex-direction:column;align-items:stretch;gap:4px;margin:0 0 20px;padding:0 0 16px;border-bottom:1px solid var(--vh-line)}}
@media(max-width:900px){.viva-header-inner{width:calc(100% - 56px)}}
@media(max-width:640px){:root{--viva-header-height:100px;--header-height:100px;--site-header-height:100px}.viva-header-inner{width:calc(100% - 40px);gap:16px}.viva-header .viva-brand{font-size:28px;gap:8px}.viva-brand img{width:32px;height:32px}.viva-header-actions{gap:0}}
@media(max-width:360px){.viva-header .viva-brand{font-size:24px}.viva-header-inner{gap:8px}}
@media print{.viva-header{display:none}}

.viva-menu{max-height:calc(100dvh - var(--viva-header-height) - 24px);overflow-y:auto;overscroll-behavior:contain}