:root{color-scheme:light;--opv-bg: #f5f8f7;--opv-bg-strong: #ecf2f0;--opv-surface: rgba(255, 255, 255, .86);--opv-surface-strong: #ffffff;--opv-surface-muted: rgba(241, 247, 245, .9);--opv-ink: #102129;--opv-muted: #60737c;--opv-soft: #526a73;--opv-line: rgba(16, 33, 41, .12);--opv-line-strong: rgba(16, 33, 41, .2);--opv-teal: #0f766e;--opv-teal-strong: #115e59;--opv-teal-soft: rgba(15, 118, 110, .12);--opv-copper: #c26b36;--opv-copper-soft: rgba(194, 107, 54, .14);--opv-blue: #316b9c;--opv-blue-soft: rgba(49, 107, 156, .13);--opv-purple: #6d5aa8;--opv-purple-soft: rgba(109, 90, 168, .14);--opv-danger: #ba5b3e;--opv-warning: #b7791f;--opv-success: #0b8f66;--opv-shadow-sm: 0 10px 26px rgba(16, 33, 41, .08);--opv-shadow-md: 0 18px 44px rgba(16, 33, 41, .12);--opv-shadow-lg: 0 28px 70px rgba(16, 33, 41, .16);--opv-radius-xl: 28px;--opv-radius-lg: 22px;--opv-radius-md: 16px;--opv-radius-sm: 12px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:radial-gradient(circle at top left,rgba(15,118,110,.2),transparent 28%),radial-gradient(circle at bottom right,rgba(194,107,54,.18),transparent 28%),linear-gradient(180deg,var(--opv-bg) 0%,var(--opv-bg-strong) 100%);color:var(--opv-ink);text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}:root[data-theme=dark]{color-scheme:dark;--opv-bg: #071213;--opv-bg-strong: #0b1c1f;--opv-surface: rgba(10, 27, 30, .78);--opv-surface-strong: #0d2024;--opv-surface-muted: rgba(13, 35, 39, .92);--opv-ink: #edf8f6;--opv-muted: #a2b7bb;--opv-soft: #7f979c;--opv-line: rgba(220, 246, 241, .13);--opv-line-strong: rgba(220, 246, 241, .24);--opv-teal: #21a99a;--opv-teal-strong: #7ee3d5;--opv-teal-soft: rgba(33, 169, 154, .16);--opv-copper: #e0985f;--opv-copper-soft: rgba(224, 152, 95, .16);--opv-blue: #69a6dc;--opv-blue-soft: rgba(105, 166, 220, .16);--opv-purple: #a99dec;--opv-purple-soft: rgba(169, 157, 236, .16);--opv-danger: #f08a6b;--opv-warning: #e4b45d;--opv-success: #35d39b;--opv-shadow-sm: 0 14px 32px rgba(0, 0, 0, .26);--opv-shadow-md: 0 22px 54px rgba(0, 0, 0, .34);--opv-shadow-lg: 0 34px 82px rgba(0, 0, 0, .42);background:radial-gradient(circle at top left,rgba(33,169,154,.2),transparent 30%),radial-gradient(circle at bottom right,rgba(224,152,95,.16),transparent 30%),linear-gradient(180deg,var(--opv-bg) 0%,var(--opv-bg-strong) 100%)}*{box-sizing:border-box}html,body,#app{width:100%;min-width:320px;height:100%;min-height:680px;margin:0;overflow:hidden}button,input,select{font:inherit}button,select,input{border:1px solid transparent}button{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;min-height:38px;border-radius:14px;padding:.66rem .86rem;background:linear-gradient(135deg,var(--opv-teal),var(--opv-teal-strong));color:#f7fffd;font-weight:800;letter-spacing:.005em;cursor:pointer;box-shadow:0 12px 24px #0f766e2e;transition:transform .14s ease,box-shadow .14s ease,background 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minmax(300px,.9fr);align-items:center;gap:16px;padding:12px;border:1px solid var(--opv-line);border-radius:var(--opv-radius-xl);background:#ffffffc7;box-shadow:var(--opv-shadow-sm);backdrop-filter:blur(18px);z-index:10}.opv-brand{display:flex;align-items:center;gap:13px;min-width:0}.opv-logo{position:relative;width:48px;height:48px;flex:0 0 auto;border-radius:18px;background:linear-gradient(135deg,#0f766eeb,#115e59f5),var(--opv-teal);box-shadow:0 14px 30px #0f766e38;overflow:hidden}.opv-logo span{position:absolute;display:block;border-radius:999px;background:#ffffffeb}.opv-logo span:nth-child(1){width:11px;height:11px;left:13px;top:14px}.opv-logo span:nth-child(2){width:9px;height:9px;right:12px;top:21px}.opv-logo span:nth-child(3){width:13px;height:13px;left:21px;bottom:10px}.opv-logo:before,.opv-logo:after{content:"";position:absolute;height:2px;width:27px;background:#ffffffa3;transform-origin:left 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span{display:block;overflow:hidden;color:var(--opv-muted);text-overflow:ellipsis;white-space:nowrap;font-size:.78rem}.opv-minimap{position:absolute;right:16px;bottom:16px;width:172px;height:118px;border:1px solid var(--opv-line);border-radius:18px;overflow:hidden;background:#ffffffc2;box-shadow:var(--opv-shadow-sm);backdrop-filter:blur(14px)}.opv-minimap svg{width:100%;height:100%}.opv-minimap line{stroke:#10212929;stroke-width:1}.opv-minimap circle{fill:#0f766ebd}.opv-minimap rect{fill:#0f766e14;stroke:#0f766e73;stroke-width:1.4}.opv-empty-state{position:absolute;inset:50% auto auto 50%;width:min(480px,calc(100% - 48px));padding:26px;transform:translate(-50%,-50%);border:1px dashed var(--opv-line-strong);border-radius:var(--opv-radius-xl);background:#fffc;text-align:center;box-shadow:var(--opv-shadow-sm)}.opv-empty-state p:last-child{margin-bottom:0;color:var(--opv-muted)}.opv-kind-chip{display:inline-flex;align-items:center;width:fit-content;min-height:28px;margin:0 0 12px;padding:.28rem .62rem;border-radius:999px;color:var(--opv-teal-strong);background:var(--opv-teal-soft);font-size:.78rem;font-weight:900;letter-spacing:.04em;text-transform:uppercase}.opv-definition{margin:0 0 15px;color:var(--opv-muted);line-height:1.52}.opv-detail-list{display:grid;gap:10px;margin:0}.opv-detail-list div{display:grid;gap:4px;min-width:0}.opv-detail-list dd{min-width:0;margin:0;overflow-wrap:anywhere;color:var(--opv-ink);font-size:.85rem;line-height:1.42}.opv-connection-list,.opv-search-results,.opv-trail{display:grid;gap:8px}.opv-connection-item,.opv-search-result,.opv-trail button{width:100%;display:grid;justify-content:stretch;gap:4px;padding:10px 11px;border:1px solid var(--opv-line);border-radius:14px;background:#ffffff9e;color:var(--opv-ink);box-shadow:none;text-align:left}.opv-search-result,.opv-trail button{cursor:pointer}.opv-search-result:hover,.opv-trail button:hover{background:#fff;box-shadow:0 10px 24px #10212914}.opv-connection-item 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span{color:var(--opv-soft);font-size:.72rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase}.opv-range-field strong{color:var(--opv-teal-strong);font-size:.82rem}.opv-range-field input[type=range]{grid-column:1 / -1;min-height:30px;padding:0;accent-color:var(--opv-teal);background:transparent;border:0;box-shadow:none}.opv-card-note{margin:10px 0 0;color:var(--opv-muted);font-size:.8rem;line-height:1.45}.opv-graph-story{position:absolute;left:18px;top:18px;z-index:4;width:min(360px,calc(100% - 220px));padding:15px 16px;border:1px solid var(--opv-line);border-radius:22px;background:var(--opv-surface);background:color-mix(in srgb,var(--opv-surface-strong) 80%,transparent);box-shadow:var(--opv-shadow-sm);backdrop-filter:blur(18px);pointer-events:none}.opv-graph-story h2{margin:0 0 6px;color:var(--opv-ink);font-size:1rem;letter-spacing:-.025em}.opv-graph-story p:last-child{margin:0;color:var(--opv-muted);font-size:.82rem;line-height:1.45}.opv-graph-legend{position:absolute;left:18px;bottom:18px;z-index:4;display:flex;flex-wrap:wrap;gap:7px;max-width:calc(100% - 220px);pointer-events:none}.opv-graph-legend span{display:inline-flex;align-items:center;gap:6px;min-height:31px;padding:.34rem .62rem;border:1px solid var(--opv-line);border-radius:999px;background:var(--opv-surface);background:color-mix(in srgb,var(--opv-surface-strong) 78%,transparent);color:var(--opv-muted);box-shadow:0 8px 22px #10212914;font-size:.76rem;font-weight:900;backdrop-filter:blur(14px)}.opv-dot{width:9px;height:9px;border-radius:999px;display:inline-block;box-shadow:0 0 0 4px var(--opv-teal-soft)}.opv-dot--focus{background:var(--opv-teal)}.opv-dot--inheritance{background:var(--opv-teal-strong)}.opv-dot--property{background:var(--opv-blue);box-shadow:0 0 0 4px var(--opv-blue-soft)}.opv-dot--mapping{background:var(--opv-copper);box-shadow:0 0 0 4px var(--opv-copper-soft)}.opv-zoom-controls{position:absolute;right:16px;top:16px;z-index:5;display:grid;gap:7px}.opv-zoom-controls .opv-icon-button{background:var(--opv-surface);background:color-mix(in srgb,var(--opv-surface-strong) 84%,transparent);backdrop-filter:blur(14px)}.opv-detail-actions{display:grid;grid-template-columns:1fr;gap:8px;margin-top:14px}.opv-detail-actions button{justify-content:flex-start;min-height:36px;font-size:.8rem}.opv-help-overlay{position:fixed;inset:0;z-index:60;display:grid;place-items:center;padding:24px;background:#040f116b;backdrop-filter:blur(14px)}.opv-help-overlay[hidden]{display:none}.opv-help-card{width:min(560px,100%);padding:22px;border:1px solid var(--opv-line);border-radius:28px;background:var(--opv-surface-strong);color:var(--opv-ink);box-shadow:var(--opv-shadow-lg)}.opv-help-card 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/* MatPortal BioMixer P0 redesign: canvas-first shell, compact chrome, overlay drawers. */
@media screen{
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}
@media screen and (max-width:1320px){.opv-topbar{grid-template-columns:minmax(128px,.38fr) minmax(0,1fr) minmax(210px,.55fr)!important;align-items:center!important}.opv-brand h1{max-width:18vw!important}.opv-top-actions{grid-template-columns:minmax(120px,1fr) repeat(4,auto)!important}.opv-main{height:100%!important}.opv-stage{min-height:0!important}.opv-detail-panel{grid-template-columns:none!important;overflow-y:auto!important}.opv-left-panel{grid-template-columns:none!important}}
@media screen and (max-width:920px){.opv-topbar{grid-template-columns:minmax(0,1fr) minmax(180px,.8fr)!important}.opv-brand{display:none!important}.opv-view-tabs{order:1!important}.opv-top-actions{order:2!important}}
@media screen and (max-width:720px){html,body,#app{min-height:620px}.opv-topbar{padding:5px!important}.opv-view-tabs button{font-size:.74rem!important;padding:.3rem .45rem!important}.opv-top-actions{grid-template-columns:1fr repeat(2,auto)!important}.opv-top-actions #themeButton,.opv-top-actions #helpButton{display:none!important}.opv-stage-toolbar{width:calc(100% - 20px)!important;max-width:calc(100% - 20px)!important;grid-template-columns:1fr!important}.opv-export-menu{display:grid!important;grid-template-columns:repeat(3,minmax(0,1fr))!important;justify-content:stretch!important}.opv-graph-legend,.opv-minimap{display:none!important}}

/* MatPortal BioMixer P0.3: native Draw.io-style browser annotation layer. */
@media screen{
.opv-diagram-layer{position:absolute;inset:0;z-index:5;pointer-events:none;overflow:hidden}.opv-diagram-object{position:absolute;z-index:1;pointer-events:auto;border:1px solid var(--opv-line-strong);border-radius:5px;background:rgba(255,255,255,.92);box-shadow:0 2px 10px rgba(16,33,41,.12);color:var(--opv-ink);min-width:120px;min-height:54px}.opv-diagram-object__handle{display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:24px;padding:4px 7px;border-bottom:1px solid var(--opv-line);background:var(--opv-surface-muted);color:var(--opv-muted);font-size:.68rem;font-weight:950;letter-spacing:.08em;text-transform:uppercase;cursor:move;user-select:none}.opv-diagram-object__body{min-height:28px;padding:7px 8px;font-size:.82rem;line-height:1.35;outline:none}.opv-diagram-note{max-width:260px}.opv-diagram-group{background:rgba(15,118,110,.055);border:1.5px dashed rgba(15,118,110,.62);min-width:190px;min-height:116px}.opv-diagram-group .opv-diagram-object__handle{border-bottom:1px dashed rgba(15,118,110,.32);background:rgba(15,118,110,.08);color:var(--opv-teal-strong)}.opv-diagram-object.is-dragging{outline:2px solid var(--opv-teal-strong);outline-offset:2px}.opv-diagram-hud{position:absolute;left:50%;bottom:14px;z-index:18;display:none;align-items:center;gap:6px;max-width:calc(100% - 180px);padding:6px 8px;border:1px solid var(--opv-line);border-radius:5px;background:var(--opv-surface-strong);box-shadow:0 2px 12px rgba(16,33,41,.16);pointer-events:auto;transform:translateX(-50%)}.opv-shell[data-view=diagram] .opv-diagram-hud{display:flex}.opv-diagram-hud__label{color:var(--opv-teal-strong);font-size:.72rem;font-weight:950;letter-spacing:.1em;text-transform:uppercase}.opv-diagram-hud__hint{max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--opv-muted);font-size:.72rem;font-weight:750}.opv-diagram-hud button{min-height:28px!important;padding:.28rem .48rem!important;border-radius:4px!important;font-size:.72rem!important}:root[data-theme=dark] .opv-diagram-object{background:rgba(13,32,36,.94)}:root[data-theme=dark] .opv-diagram-group{background:rgba(33,169,154,.09)}
}
@media screen and (max-width:720px){.opv-diagram-hud{left:10px;right:10px;bottom:10px;transform:none;max-width:none;display:none;flex-wrap:wrap}.opv-shell[data-view=diagram] .opv-diagram-hud{display:flex}.opv-diagram-hud__hint{display:none}}
.opv-export-menu #exportDrawioButton,.opv-export-menu #exportPlantUmlButton,.opv-export-menu #printButton{color:#7a3513!important;border-color:#7a3513!important;background:#fffaf3!important}:root[data-theme=dark] .opv-export-menu #exportDrawioButton,:root[data-theme=dark] .opv-export-menu #exportPlantUmlButton,:root[data-theme=dark] .opv-export-menu #printButton{color:#ffd2a6!important;border-color:#ffd2a6!important;background:#23140c!important}
/* MatPortal UX tighten: keep graph canvas wide; move mode/export controls into explicit menus. */
.opv-control-menu{position:relative!important;display:inline-block!important;min-width:0!important;color:var(--opv-ink)!important}.opv-control-menu>summary{display:grid!important;grid-template-columns:1fr auto!important;gap:0 8px!important;align-items:center!important;min-height:32px!important;padding:4px 10px!important;border:1px solid var(--opv-line)!important;border-radius:5px!important;background:var(--opv-surface-muted)!important;cursor:pointer!important;list-style:none!important;box-shadow:none!important}.opv-control-menu>summary::-webkit-details-marker{display:none}.opv-control-menu>summary:after{content:"▾";grid-row:1 / span 2;grid-column:2;color:var(--opv-soft);font-size:.8rem}.opv-control-menu[open]>summary:after{content:"▴"}.opv-control-menu>summary span{font-size:.76rem;font-weight:950;letter-spacing:.08em;text-transform:uppercase}.opv-control-menu>summary small{color:var(--opv-muted);font-size:.66rem;font-weight:750}.opv-control-menu:not([open])>.opv-view-tabs,.opv-control-menu:not([open])>.opv-export-menu{display:none!important}.opv-control-menu[open]>.opv-view-tabs,.opv-control-menu[open]>.opv-export-menu{position:absolute!important;top:calc(100% + 6px)!important;right:0!important;z-index:45!important;padding:8px!important;border:1px solid var(--opv-line)!important;border-radius:6px!important;background:var(--opv-surface-strong)!important;box-shadow:0 8px 28px rgba(16,33,41,.2)!important}.opv-view-menu .opv-view-tabs{min-width:250px!important;display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:6px!important}.opv-download-menu .opv-export-menu{min-width:260px!important;display:grid!important;grid-template-columns:1fr!important;gap:6px!important}.opv-download-menu .opv-export-menu button{justify-content:flex-start!important;width:100%!important}.opv-stage-toolbar{grid-template-columns:auto minmax(140px,1fr) auto!important}.opv-stage-toolbar .opv-download-menu{justify-self:end!important}.opv-shell.right-panel-collapsed .opv-graph-legend{max-width:calc(100% - 40px)!important}.opv-shell.right-panel-collapsed .opv-minimap{right:10px!important}@media screen and (max-width:720px){.opv-control-menu[open]>.opv-view-tabs,.opv-control-menu[open]>.opv-export-menu{left:0!important;right:auto!important}.opv-download-menu .opv-export-menu{min-width:min(280px,calc(100vw - 24px))!important}}
.opv-shell.opv-no-drawers .opv-left-panel,.opv-shell.opv-no-drawers .opv-detail-panel,.opv-shell.opv-no-drawers .opv-floating-toggle{display:none!important}
.opv-shell.opv-no-drawers .opv-main{grid-template-columns:minmax(0,1fr)!important}
/* MatPortal: keep view choices inline; no graph-covering dropdown. */
.opv-view-menu{display:block!important;position:static!important;min-width:0!important}
.opv-view-menu>summary{display:none!important}
.opv-view-menu>.opv-view-tabs,.opv-view-menu[open]>.opv-view-tabs,.opv-control-menu[open]>.opv-view-tabs{position:static!important;display:flex!important;flex-wrap:wrap!important;align-items:center!important;gap:4px!important;min-width:0!important;width:100%!important;padding:3px!important;border:1px solid var(--opv-line)!important;border-radius:7px!important;background:var(--opv-surface-muted)!important;box-shadow:none!important;z-index:auto!important}
.opv-view-menu .opv-view-tabs button{min-height:30px!important;padding:.34rem .52rem!important;border-radius:5px!important;font-size:.76rem!important;white-space:nowrap!important}
.opv-view-menu .opv-view-tabs button:disabled{opacity:.42!important;cursor:not-allowed!important;background:transparent!important;color:var(--opv-muted)!important;box-shadow:none!important}
.opv-shell.is-embed .opv-topbar{grid-template-columns:minmax(150px,.35fr) minmax(0,1fr) minmax(220px,.55fr)!important}
.opv-shell.is-embed .opv-view-tabs{overflow-x:auto!important;scrollbar-width:thin!important}
.opv-canvas-host,.opv-graph{touch-action:none!important}
/* MatPortal: all primary controls live in one top strip, never over the graph. */
.opv-control-strip{display:grid!important;grid-template-columns:minmax(300px,1fr) minmax(260px,.8fr)!important;gap:8px!important;min-width:0!important;align-items:start!important}
.opv-control-group{min-width:0!important;display:grid!important;gap:3px!important}
.opv-control-label{color:var(--opv-soft)!important;font-size:.62rem!important;font-weight:950!important;letter-spacing:.12em!important;text-transform:uppercase!important;line-height:1!important}
.opv-top-export .opv-export-menu{position:static!important;display:flex!important;flex-wrap:wrap!important;gap:4px!important;width:100%!important;min-width:0!important;padding:3px!important;border:1px solid var(--opv-line)!important;border-radius:7px!important;background:var(--opv-surface-muted)!important;box-shadow:none!important}
.opv-top-export .opv-export-menu button{flex:1 1 auto!important;min-width:56px!important;min-height:30px!important;width:auto!important;padding:.32rem .44rem!important;border-radius:5px!important;font-size:.72rem!important;font-weight:850!important;justify-content:center!important;white-space:nowrap!important}
.opv-stage-toolbar{grid-template-columns:auto minmax(160px,1fr)!important}
.opv-download-menu{display:none!important}
@media screen and (max-width:1320px){.opv-shell.is-embed .opv-topbar{grid-template-columns:1fr!important}.opv-control-strip{grid-template-columns:1fr!important}.opv-top-actions{grid-template-columns:minmax(160px,1fr) repeat(4,auto)!important}}
@media screen and (max-width:720px){.opv-control-strip{gap:5px!important}.opv-top-export .opv-export-menu{overflow-x:auto!important;flex-wrap:nowrap!important}.opv-top-export .opv-export-menu button{flex:0 0 auto!important}.opv-view-menu>.opv-view-tabs{flex-wrap:nowrap!important;overflow-x:auto!important}}
/* MatPortal: compact classic menu bar for graph controls. */
.opv-menu-bar{display:flex!important;align-items:center!important;gap:6px!important;width:auto!important;min-width:0!important;align-self:center!important}
.opv-menu{position:relative!important;display:block!important;margin:0!important;min-width:0!important}
.opv-menu>summary{display:inline-flex!important;align-items:center!important;gap:6px!important;min-height:32px!important;padding:0 .72rem!important;border:1px solid var(--opv-line)!important;border-radius:5px!important;background:var(--opv-surface-strong)!important;color:var(--opv-ink)!important;font-size:.82rem!important;font-weight:850!important;line-height:1!important;cursor:pointer!important;list-style:none!important;box-shadow:none!important}
.opv-menu>summary::-webkit-details-marker{display:none!important}
.opv-menu>summary:after{content:"▾"!important;color:var(--opv-muted)!important;font-size:.72rem!important}
.opv-menu[open]>summary{background:#fff!important;border-color:var(--opv-line-strong)!important}
.opv-menu[open]>summary:after{content:"▴"!important}
.opv-menu>.opv-menu-panel,.opv-menu[open]>.opv-menu-panel,.opv-menu[open]>.opv-view-tabs,.opv-menu[open]>.opv-export-menu{position:absolute!important;top:calc(100% + 4px)!important;left:0!important;right:auto!important;z-index:1000!important;display:grid!important;grid-template-columns:1fr!important;gap:2px!important;width:max-content!important;min-width:180px!important;max-width:min(320px,calc(100vw - 32px))!important;padding:5px!important;border:1px solid var(--opv-line-strong)!important;border-radius:6px!important;background:#fff!important;color:var(--opv-ink)!important;box-shadow:0 14px 36px rgba(16,33,41,.2)!important;overflow:hidden!important}
.opv-menu .opv-menu-panel button,.opv-menu .opv-view-tabs button,.opv-menu .opv-export-menu button{display:flex!important;justify-content:flex-start!important;width:100%!important;min-width:0!important;min-height:30px!important;padding:.42rem .56rem!important;border:0!important;border-radius:4px!important;background:transparent!important;color:var(--opv-ink)!important;box-shadow:none!important;font-size:.8rem!important;font-weight:800!important;text-align:left!important;white-space:nowrap!important}
.opv-menu .opv-menu-panel button:hover,.opv-menu .opv-menu-panel button:focus{background:var(--opv-surface-muted)!important;color:var(--opv-teal-strong)!important}
.opv-menu .opv-menu-panel button.is-active{background:var(--opv-teal-soft)!important;color:var(--opv-teal-strong)!important}
.opv-menu .opv-menu-panel button:disabled{opacity:.45!important;cursor:not-allowed!important;background:transparent!important;color:var(--opv-muted)!important}
.opv-shell.is-embed .opv-topbar{min-height:46px!important;grid-template-columns:minmax(160px,.4fr) auto minmax(260px,.75fr)!important;padding:5px 8px!important;gap:8px!important;overflow:visible!important}
.opv-shell.is-embed .opv-main{height:calc(100% - 46px)!important}
@media screen and (max-width:920px){.opv-shell.is-embed .opv-topbar{grid-template-columns:auto minmax(180px,1fr)!important}.opv-menu-bar{order:1!important}.opv-top-actions{order:2!important}}
@media screen and (max-width:720px){.opv-menu>.opv-menu-panel{max-width:calc(100vw - 20px)!important}.opv-menu-bar{gap:4px!important}.opv-menu>summary{padding:0 .55rem!important}}
/* MatPortal: single compact top menu. */
.opv-control-strip,.opv-menu-bar,.opv-view-menu:not(.opv-main-menu),.opv-download-menu:not(.opv-main-menu){display:none!important}
.opv-main-menu{position:relative!important;display:block!important;justify-self:center!important;align-self:center!important}
.opv-main-menu>.opv-main-menu-panel{left:50%!important;right:auto!important;transform:translateX(-50%)!important;display:grid!important;grid-template-columns:repeat(3,minmax(140px,1fr))!important;gap:8px!important;min-width:min(560px,calc(100vw - 32px))!important;width:min(620px,calc(100vw - 32px))!important;max-width:calc(100vw - 32px)!important;padding:8px!important}
.opv-main-menu-panel section{display:grid!important;gap:4px!important;min-width:0!important}
.opv-main-menu-panel strong{color:var(--opv-soft)!important;font-size:.66rem!important;font-weight:950!important;letter-spacing:.12em!important;text-transform:uppercase!important}
.opv-main-menu-panel .opv-view-tabs,.opv-main-menu-panel .opv-export-menu,.opv-main-menu-panel .opv-action-menu{position:static!important;display:grid!important;grid-template-columns:1fr!important;gap:2px!important;width:100%!important;min-width:0!important;padding:0!important;border:0!important;background:transparent!important;box-shadow:none!important}
.opv-main-menu-panel button{display:flex!important;justify-content:flex-start!important;width:100%!important;min-height:29px!important;padding:.38rem .5rem!important;border:0!important;border-radius:4px!important;background:transparent!important;color:var(--opv-ink)!important;box-shadow:none!important;font-size:.78rem!important;font-weight:800!important;text-align:left!important;white-space:nowrap!important}
.opv-main-menu-panel button:hover,.opv-main-menu-panel button:focus{background:var(--opv-surface-muted)!important;color:var(--opv-teal-strong)!important}
.opv-main-menu-panel button.is-active{background:var(--opv-teal-soft)!important;color:var(--opv-teal-strong)!important}
.opv-main-menu-panel button:disabled{opacity:.45!important;cursor:not-allowed!important;background:transparent!important;color:var(--opv-muted)!important}
.opv-search-only{grid-template-columns:minmax(180px,1fr)!important}
.opv-shell.is-embed .opv-topbar{min-height:46px!important;grid-template-columns:minmax(160px,.45fr) auto minmax(220px,.55fr)!important;padding:5px 8px!important;gap:8px!important;overflow:visible!important}
@media screen and (max-width:720px){.opv-main-menu>.opv-main-menu-panel{grid-template-columns:1fr!important;left:0!important;transform:none!important;min-width:min(260px,calc(100vw - 20px))!important;width:min(280px,calc(100vw - 20px))!important}.opv-shell.is-embed .opv-topbar{grid-template-columns:auto 1fr!important}}
/* MatPortal: one horizontal menubar with dropdown submenus. */
.opv-main-menu{display:none!important}
.opv-menubar{display:flex!important;align-items:center!important;gap:0!important;height:32px!important;min-width:0!important;justify-self:center!important;border:1px solid var(--opv-line)!important;border-radius:5px!important;background:var(--opv-surface-strong)!important;overflow:visible!important}
.opv-menubar .opv-menu{display:block!important;position:relative!important;margin:0!important;min-width:0!important}
.opv-menubar .opv-menu>summary{display:inline-flex!important;align-items:center!important;gap:5px!important;height:30px!important;min-height:30px!important;padding:0 .62rem!important;border:0!important;border-right:1px solid var(--opv-line)!important;border-radius:0!important;background:transparent!important;color:var(--opv-ink)!important;font-size:.8rem!important;font-weight:850!important;line-height:1!important;cursor:pointer!important;list-style:none!important;box-shadow:none!important;white-space:nowrap!important}
.opv-menubar .opv-menu:last-child>summary{border-right:0!important}
.opv-menubar .opv-menu>summary::-webkit-details-marker{display:none!important}
.opv-menubar .opv-menu>summary:after{content:"▾"!important;color:var(--opv-muted)!important;font-size:.68rem!important}
.opv-menubar .opv-menu[open]>summary,.opv-menubar .opv-menu>summary:hover{background:var(--opv-surface-muted)!important;color:var(--opv-teal-strong)!important}
.opv-menubar .opv-menu[open]>.opv-menu-panel,.opv-menubar .opv-menu[open]>.opv-view-tabs,.opv-menubar .opv-menu[open]>.opv-export-menu,.opv-menubar .opv-menu[open]>.opv-action-menu{position:absolute!important;top:calc(100% + 2px)!important;left:0!important;right:auto!important;z-index:1000!important;display:grid!important;grid-template-columns:1fr!important;gap:2px!important;min-width:180px!important;width:max-content!important;max-width:min(320px,calc(100vw - 24px))!important;padding:5px!important;border:1px solid var(--opv-line-strong)!important;border-radius:6px!important;background:#fff!important;box-shadow:0 14px 36px rgba(16,33,41,.2)!important;overflow:hidden!important}
.opv-menubar .opv-menu-panel button,.opv-menubar .opv-view-tabs button,.opv-menubar .opv-export-menu button,.opv-menubar .opv-action-menu button{display:flex!important;justify-content:flex-start!important;width:100%!important;min-height:29px!important;padding:.38rem .55rem!important;border:0!important;border-radius:4px!important;background:transparent!important;color:var(--opv-ink)!important;box-shadow:none!important;font-size:.78rem!important;font-weight:800!important;text-align:left!important;white-space:nowrap!important}
.opv-menubar .opv-menu-panel button:hover,.opv-menubar .opv-menu-panel button:focus{background:var(--opv-surface-muted)!important;color:var(--opv-teal-strong)!important}
.opv-menubar .opv-menu-panel button.is-active{background:var(--opv-teal-soft)!important;color:var(--opv-teal-strong)!important}
.opv-menubar .opv-menu-panel button:disabled{opacity:.45!important;cursor:not-allowed!important;background:transparent!important;color:var(--opv-muted)!important}
.opv-menubar .opv-view-menu:not(.opv-main-menu),.opv-menubar .opv-download-menu:not(.opv-main-menu),.opv-menubar .opv-actions-menu{display:block!important}
.opv-shell.is-embed .opv-topbar{min-height:46px!important;grid-template-columns:minmax(160px,.42fr) auto minmax(220px,.58fr)!important;padding:5px 8px!important;gap:8px!important;overflow:visible!important}
@media screen and (max-width:720px){.opv-menubar .opv-menu>summary{padding:0 .45rem!important;font-size:.75rem!important}.opv-menubar .opv-menu[open]>.opv-menu-panel{max-width:calc(100vw - 20px)!important}.opv-shell.is-embed .opv-topbar{grid-template-columns:auto 1fr!important}}
/* MatPortal: fold graph status into the horizontal menubar. */
.opv-stage-toolbar{display:none!important}
.opv-stage{grid-template-rows:1fr!important}
.opv-menubar{height:32px!important;max-width:100%!important}
.opv-menubar-status{display:inline-flex!important;align-items:center!important;gap:0!important;height:30px!important;min-width:0!important;border-left:1px solid var(--opv-line)!important;color:var(--opv-muted)!important;font-size:.75rem!important;font-weight:850!important;white-space:nowrap!important}
.opv-menubar-status .opv-status{min-width:0!important;max-width:132px!important;height:30px!important;min-height:30px!important;padding:0 .55rem!important;border:0!important;border-radius:0!important;background:transparent!important;color:var(--opv-muted)!important;font-size:.75rem!important;gap:5px!important}
.opv-menubar-status .opv-status span{width:7px!important;height:7px!important;flex:0 0 auto!important}
.opv-menubar-status .opv-status strong{font-size:.75rem!important;max-width:96px!important}
.opv-menubar-status>span{display:inline-flex!important;align-items:center!important;height:30px!important;min-height:30px!important;padding:0 .5rem!important;border-left:1px solid var(--opv-line)!important;border-radius:0!important;background:transparent!important;color:var(--opv-muted)!important;box-shadow:none!important}
.opv-menubar-status #layoutMetric{max-width:112px!important;overflow:hidden!important;text-overflow:ellipsis!important}
.opv-shell.is-embed .opv-topbar{grid-template-columns:minmax(140px,.32fr) minmax(360px,auto) minmax(190px,.45fr)!important}
@media screen and (max-width:960px){.opv-menubar-status #layoutMetric{display:none!important}.opv-menubar-status>span{padding:0 .38rem!important}.opv-shell.is-embed .opv-topbar{grid-template-columns:1fr!important}.opv-menubar{justify-self:start!important}.opv-search-only{justify-self:stretch!important}}
@media screen and (max-width:720px){.opv-menubar-status #edgeMetric{display:none!important}.opv-menubar-status .opv-status strong{max-width:72px!important}.opv-menubar .opv-menu>summary{padding:0 .38rem!important}}
/* MatPortal: narrow class-tab embed - keep the menubar usable, not clipped. */
@media screen and (max-width:1100px){
  .opv-shell.is-embed .opv-topbar{grid-template-columns:minmax(0,1fr)!important;min-height:38px!important;padding:3px 5px!important;gap:0!important;overflow:visible!important}
  .opv-brand,.opv-search-only{display:none!important}
  .opv-menubar{justify-self:start!important;width:auto!important;max-width:100%!important;height:32px!important}
  .opv-menubar-status #layoutMetric{display:none!important}
  .opv-menubar-status .opv-status strong{max-width:74px!important}
}
@media screen and (max-width:720px){
  .opv-menubar-status #edgeMetric{display:none!important}
  .opv-menubar .opv-menu>summary{padding:0 .34rem!important;font-size:.74rem!important}
  .opv-menubar-status>span{padding:0 .32rem!important}
}
@media screen and (max-width:560px){
  .opv-menubar-status #nodeMetric{display:none!important}
  .opv-menubar-status .opv-status{padding:0 .38rem!important}
}