/* Original design studies. Identity and destinations are provided by configuration. */
.vn{--ink:#fff8ea;--accent:#f2c98d;--ease:cubic-bezier(.2,.75,.2,1);position:relative;z-index:10;color:var(--ink);font-family:var(--nav-font,Arial,sans-serif);isolation:isolate}
.vn *{box-sizing:border-box}.vn a{color:inherit;text-decoration:none}.vn button{font:inherit;color:inherit;cursor:pointer}.vn :is(a,button):focus-visible{outline:2px solid var(--accent);outline-offset:5px}.vn-bar{position:relative;display:flex;align-items:center;gap:28px;padding:13px 16px;min-height:86px;background:linear-gradient(112deg,#ffffff20,#ffffff07 42%,#fff0 70%,#ffffff15),var(--surface,#2d281d75);border:1px solid #fff4d547;border-radius:6px 18px 6px 18px;box-shadow:0 28px 55px #0005,0 8px 14px #0003,inset 0 1px #fff8,inset 0 -1px #f5d2a928;backdrop-filter:blur(24px) saturate(1.5);-webkit-backdrop-filter:blur(24px) saturate(1.5)}
.vn-bar:before{content:'';position:absolute;pointer-events:none;inset:3px;border:1px solid #fff1;border-radius:inherit;mask-image:linear-gradient(130deg,#000,transparent 40%,#000)}.vn-bar:after{content:'';position:absolute;pointer-events:none;left:12%;right:42%;height:1px;top:-1px;background:linear-gradient(90deg,transparent,#fffbe9,transparent);box-shadow:0 0 13px #ffe3a8}
.vn-brand{display:flex;align-items:center;gap:12px;flex-shrink:0;padding:6px 14px 6px 4px}.vn-brand strong{font-size:16px;font-weight:500;letter-spacing:.17em}.vn-brand small{display:block;font-size:8px;letter-spacing:.3em;margin-top:6px;color:#e0d6c3}
.vn-links{position:relative;display:flex;align-items:center;gap:5px;margin-left:auto;padding:5px;isolation:isolate}.vn-links>a{position:relative;display:flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;font-size:12px;letter-spacing:.025em;color:#e5ddd1;transition:color .1s,background .1s}.vn-links>a:hover{color:#fff;background:#fff1}.vn-links>a[aria-current]{color:#fff9e7}.vn-links small{display:none}.vn-indicator{position:absolute;z-index:-1;pointer-events:none;top:5px;left:0;height:44px;width:var(--active-w,80px);transform:translateX(var(--active-x,5px));border:1px solid #fff5;border-radius:4px 10px 4px 10px;background:linear-gradient(140deg,#fff3,#ffefd809);box-shadow:inset 0 1px #fff6,0 4px 10px #0002;transition:transform .12s cubic-bezier(.16,1,.3,1),width .12s cubic-bezier(.16,1,.3,1),opacity .12s ease}
.vn-cta{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:0 18px;min-height:44px;border-left:1px solid #fff3;font-size:11px;letter-spacing:.06em;white-space:nowrap}.vn-cta span:last-child{font-size:22px;color:var(--accent);transition:transform .12s}.vn-cta:hover span:last-child{transform:translate(3px,-3px)}.vn-toggle{display:none;background:transparent;border:0;min-width:48px;min-height:48px;padding:12px}.vn-toggle i{display:block;width:22px;height:1px;background:currentColor;margin:6px auto;transition:transform .4s var(--ease)}.vn-toggle[aria-expanded=true] i:first-child{transform:translateY(3.5px) rotate(45deg)}.vn-toggle[aria-expanded=true] i:last-child{transform:translateY(-3.5px) rotate(-45deg)}.vn-panel{display:none}.vn-menu-foot{display:none}
/* B: two optically separated pieces and a floating light lens */
.vn[data-concept=lens]{--accent:#c2ecff;--ink:#eef8ff}.vn[data-concept=lens] .vn-bar{border-radius:30px 7px 30px 7px;background:linear-gradient(130deg,#9ecbe52e,#20364d55 55%,#c3e8ff22);padding:17px 22px;gap:20px;border-color:#d6efff5c;box-shadow:0 26px 75px #02102077,inset 1px 1px #e7f9ff99,inset -1px -1px #9cdaff44}
.vn[data-concept=lens] .vn-brand{border-right:1px solid #fff3;padding-right:24px}.vn[data-concept=lens] .vn-brand strong{letter-spacing:-.04em;font-size:23px;font-weight:600}.vn[data-concept=lens] .vn-brand small{letter-spacing:.16em;color:#c4ddec}.vn[data-concept=lens] .vn-links{gap:0}.vn[data-concept=lens] .vn-links>a{padding-inline:20px;color:#d5e8f7}.vn[data-concept=lens] .vn-indicator{border-radius:18px 4px 18px 4px;background:radial-gradient(ellipse at 20% 0,#e4faff88,transparent 90%),#b2dbff17;border-color:#d6f2ff66;box-shadow:0 6px 15px #0003,inset 0 1px #fff9,inset -1px -1px #b9dfff77}.vn[data-concept=lens] .vn-cta{background:#d3efff;box-shadow:0 6px 24px #9adeff22;color:#102d44;border:0;border-radius:18px 4px 18px 4px}.vn[data-concept=lens] .vn-cta span:last-child{color:inherit}
/* C: smoked folio, structured indexes and a travelling registration line */
.vn[data-concept=ledger]{--accent:#dfddc9}.vn[data-concept=ledger] .vn-bar{background:linear-gradient(100deg,#eef3dc0f,#fff0 60%),var(--surface,#121b16b0);border-radius:2px;padding:0;min-height:92px;gap:0;border-color:#d4dcc13d;box-shadow:0 30px 55px #0008,inset 0 1px #eaf5de55;backdrop-filter:blur(30px) saturate(.7)}.vn[data-concept=ledger] .vn-brand{min-height:90px;border-right:1px solid #fff3;padding:20px 30px;gap:0}.vn[data-concept=ledger] .vn-brand strong{font:26px Georgia,serif;letter-spacing:-.04em}.vn[data-concept=ledger] .vn-brand small{color:#b8c5b8;letter-spacing:.2em}.vn[data-concept=ledger] .vn-links{margin:auto;padding:0;gap:0}.vn[data-concept=ledger] .vn-links>a{min-height:90px;padding:0 24px;flex-direction:column;align-items:flex-start;gap:11px;font-size:12px}.vn[data-concept=ledger] .vn-links small{display:block;font-size:8px;letter-spacing:.12em;color:#aabaaa}.vn[data-concept=ledger] .vn-indicator{top:auto;bottom:0;height:2px;background:#e0e9c7;border:0;border-radius:0;box-shadow:0 0 12px #e7fbb155}.vn[data-concept=ledger] .vn-cta{margin:0 20px;padding:8px 16px;border:1px solid #e3e9d647;color:#eff2e5}.vn[data-concept=ledger] .vn-bar:after{left:0;right:75%;box-shadow:none}
@media(max-width:800px){.vn-bar{min-height:76px;padding:10px 14px;gap:0}.vn-brand{padding:5px}.vn-brand strong{font-size:15px}.vn-links,.vn-cta{display:none}.vn-toggle{display:block;margin-left:auto}.vn-panel{display:grid;grid-template-rows:0fr;opacity:0;visibility:hidden;transform:translateY(-10px);transition:grid-template-rows .52s var(--ease),opacity .35s,transform .52s var(--ease),visibility .52s;position:absolute;top:calc(100% + 9px);left:0;right:0;border:1px solid transparent;border-radius:6px 18px 6px 18px;background:linear-gradient(130deg,#eee0bd20,#ffffff05),#29241cf0;box-shadow:0 28px 60px #0006;backdrop-filter:blur(32px) saturate(1.5);-webkit-backdrop-filter:blur(32px) saturate(1.5)}.vn-panel>section{overflow:hidden;min-height:0}.vn[data-open=true] .vn-panel{grid-template-rows:1fr;opacity:1;visibility:visible;transform:translateY(0);border-color:#ead8b55c}.vn-menu-links{display:flex;flex-direction:column;padding:20px}.vn-menu-links>a{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #fff2;padding:17px 3px;min-height:56px;font-size:24px;letter-spacing:-.035em;opacity:0;transform:translateY(12px);transition:opacity .3s,transform .45s var(--ease),color .2s;transition-delay:0s}.vn-menu-links>a small{font:9px Arial,sans-serif;letter-spacing:.1em;color:#dac49f}.vn[data-open=true] .vn-menu-links>a{opacity:1;transform:none;transition-delay:calc(var(--i)*45ms + 80ms)}.vn-menu-links>a[aria-current]{color:var(--accent)}.vn-menu-links>a[aria-current]:after{content:'↗';margin-left:auto;padding-left:15px}.vn-menu-links>a:hover{color:var(--accent)}.vn-menu-links>a small{margin-right:16px}.vn-menu-links>a span{margin-right:auto}.vn-menu-foot{display:flex;align-items:center;justify-content:space-between;padding:0 22px 24px;font-size:10px;color:#d1c2aa}.vn-menu-foot a{padding:14px;border:1px solid #fff4;font-size:11px}.vn[data-concept=lens] .vn-bar{padding:12px 16px;border-radius:24px 6px 24px 6px}.vn[data-concept=lens] .vn-brand{border:0;padding:0}.vn[data-concept=lens] .vn-brand strong{font-size:21px}.vn[data-concept=lens] .vn-panel{background:linear-gradient(120deg,#d1efff25,#172e47ee),#152b41ed;border-radius:24px 6px 24px 6px;transform:translateY(12px) scale(.97);transform-origin:top right}.vn[data-concept=lens][data-open=true] .vn-panel{transform:none;border-color:#c8eaff6b}.vn[data-concept=lens] .vn-menu-links{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:16px}.vn[data-concept=lens] .vn-menu-links>a{flex-direction:column;align-items:flex-start;justify-content:space-between;gap:28px;min-height:135px;font-size:20px;background:linear-gradient(135deg,#d4f5ff19,#bce5ff04);border:1px solid #dcf5ff30;border-radius:16px 3px 16px 3px;padding:18px;position:relative}.vn[data-concept=lens] .vn-menu-links>a[aria-current]{background:linear-gradient(135deg,#cdf2ff40,#bce5ff10);border-color:#bde8ff88}.vn[data-concept=lens] .vn-menu-links>a[aria-current]:after{position:absolute;right:14px;top:14px}.vn[data-concept=lens] .vn-menu-links small{color:#bfd7ed}.vn[data-concept=lens] .vn-menu-foot{color:#bdd0e1}.vn[data-concept=ledger] .vn-bar{min-height:78px}.vn[data-concept=ledger] .vn-brand{min-height:76px;padding:12px 20px;border-right:0}.vn[data-concept=ledger] .vn-toggle{margin-right:14px}.vn[data-concept=ledger] .vn-panel{top:calc(100% - 1px);border-radius:0;background:linear-gradient(145deg,#dce6cf0d,transparent),#141d17f5;transform:translateY(0);box-shadow:0 35px 55px #0009}.vn[data-concept=ledger] .vn-menu-links{padding:8px 24px 22px}.vn[data-concept=ledger] .vn-menu-links>a{font:32px Georgia,serif;padding:20px 0;transform:translateX(-12px);border-color:#c9dcc229}.vn[data-concept=ledger][data-open=true] .vn-menu-links>a{transform:none}.vn[data-concept=ledger] .vn-menu-links small{color:#b6c6af}.vn[data-concept=ledger] .vn-menu-foot{color:#b6c6af;letter-spacing:.06em}}
@media(prefers-reduced-motion:reduce){.vn *,.vn *:before,.vn *:after{transition:none!important;animation:none!important;scroll-behavior:auto!important}}
@media(forced-colors:active){.vn-bar,.vn-panel{background:Canvas;border:1px solid CanvasText}.vn-indicator{border:1px solid Highlight}.vn a[aria-current]{color:LinkText;text-decoration:underline}}

.vn-logo{display:block;width:32px;height:32px;object-fit:contain}

/* Links enter the focus order immediately; only the visual reveal is animated. */
.vn[data-open=true] .vn-panel{transition-property:grid-template-rows,opacity,transform}

.vn-logo{width:28px;height:32px}.vn[data-concept=lens] .vn-logo{height:28px}.vn[data-concept=ledger] .vn-logo{display:none}