:root {
    --model-bg: #ffffff;
    --model-ink: #22201b;
    --model-mute: #4b5563;
    --model-edge: #e5e7eb;
    --model-edge-hover: #d1d5db;
    --model-hover: #f3f4f6;
    --model-focus: #2563eb;
}

body.dark-mode {
    --model-bg: #1f1f1f;
    --model-ink: #f3f4f6;
    --model-mute: #d1d5db;
    --model-edge: #3a3a3a;
    --model-edge-hover: #525252;
    --model-hover: #2a2a2a;
}

* { box-sizing: border-box; }

html, body { margin: 0; height: 100%; }

body {
    display: flex;
    flex-direction: row;
    min-height: 100vh;
    min-height: 100dvh;
    background: var(--model-bg);
    color: var(--model-ink);
    font-family: Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
}

.model-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px 8px;
    padding: 8px 16px;
    border-bottom: 1px solid var(--model-edge);
}

.model-title {
    flex: 1 1 160px;
    min-width: 0;
    margin: 0;
    font-size: 17px;
    font-weight: 600;
    overflow-wrap: anywhere;
}

.model-actions { display: flex; flex-wrap: wrap; gap: 4px; margin-left: auto; }

.model-back, .model-action {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-width: 44px;
    min-height: 44px;
    padding: 0 12px;
    border: 1px solid transparent;
    border-radius: 8px;
    background: transparent;
    color: var(--model-mute);
    font: inherit;
    font-size: 17px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
}

.model-back:hover, .model-action:hover { background: var(--model-hover); color: var(--model-ink); }

.model-back:focus-visible, .model-action:focus-visible, .model-fit :focus-visible {
    outline: 2px solid var(--model-focus);
    outline-offset: 2px;
}

.model-action[hidden] { display: none; }

.model-stage {
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 24px 16px 16px;
}

.model-fit { width: 100%; max-width: 728px; }

.model-fit.model-wide { max-width: 1000px; }

.model-wide .mt-viz > [role="group"]:not(.mt-app) {
    display: grid !important;
    grid-template-columns: minmax(280px, 560px) minmax(280px, 400px);
    grid-auto-flow: row dense;
    column-gap: 28px;
    align-items: center;
    justify-content: center;
}

.model-wide .mt-viz > [role="group"]:not(.mt-app) > * { grid-column: 2; }

.model-wide .mt-viz > [role="group"] > svg,
.model-wide .mt-viz > [role="group"] > .mt-draw { grid-column: 1; grid-row: 1 / span 12; justify-self: center; }

.model-fit .viz-frame { border: none; padding: 0; }

body.dark-mode .model-fit { background: #f8fafc; border-radius: 12px; padding: 12px; color: #22201b; }

.model-status {
    position: fixed;
    left: 50%;
    bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    transform: translateX(-50%);
    padding: 8px 16px;
    border-radius: 8px;
    background: #1f2937;
    color: #fff;
    font-size: 14px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.model-status.shown { opacity: 1; }

.model-empty { color: var(--model-mute); text-align: center; }

@media (max-width: 480px) {
    .model-bar { padding: 6px 8px; }
    .model-title { font-size: 17px; }
    .model-label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
    .model-back, .model-action { padding: 0; justify-content: center; }
    .model-stage { padding: 12px 16px; }
}

@media (prefers-reduced-motion: reduce) {
    .model-status { transition: none; }
}

.model-fit.model-index { max-width: 960px; }

.model-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 8px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.model-list a {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 8px 12px;
    border: 1px solid var(--model-edge);
    border-radius: 12px;
    color: var(--model-ink);
    text-decoration: none;
}

.model-list a:hover { border-color: var(--model-edge-hover); }

.model-list a { gap: 10px; font-size: 17px; font-weight: 400; }
.model-list .index-name { flex: 1; min-width: 0; }
.model-list .grade { flex: none; color: var(--model-mute); white-space: nowrap; }
.model-list .side-icon { flex: none; width: 28px; height: 28px; }
.model-index .index-domain { margin: 20px 0 8px; padding: 0; }
.model-index .model-list { grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); }
.model-index .index-domain:first-child { margin-top: 0; }

.model-list a:focus-visible { outline: 2px solid var(--model-focus); outline-offset: 2px; }

body.dark-mode .model-fit.model-index { background: transparent; padding: 0; color: var(--model-ink); }

.model-guide { flex: none; width: 100%; max-width: 760px; margin: 0 auto; padding: 0 16px 16px; box-sizing: border-box; font-size: 17px; font-weight: 600; line-height: 1.5; color: var(--model-ink); }

.model-how { margin: 0 0 16px; padding: 10px 14px; border-radius: 10px; background: #FEF9C3; color: #22201B; }

.model-how i { color: #2563EB; margin-right: 4px; }


.model-ideas summary { min-height: 32px; line-height: 32px; font-weight: 600; cursor: pointer; }

.model-ideas summary:focus-visible { outline: 2px solid var(--model-focus); outline-offset: 2px; border-radius: 4px; }

.model-ideas ul { margin: 4px 0 0; padding-left: 22px; }

.model-ideas li { margin: 2px 0; }

body.dark-mode .model-how { background: #262626; color: #F3F4F6; border: 1px solid #404040; }
body.dark-mode .model-how i { color: #FACC15; }

.model-back i, .model-action i { font-size: 20px; line-height: 1; }

.model-how i { font-size: 20px; vertical-align: -4px; }

.model-fit:has(.mt-graph) { max-width: 1000px; }

.model-main { flex: 1; min-width: 0; display: flex; flex-direction: column; min-height: 100vh; min-height: 100dvh; }

.model-action.icon-only { padding: 0; justify-content: center; }
.model-action[aria-pressed="true"] { border-color: #3B82F6; background: #DBEAFE; color: #1D4ED8; }
.narrow-only { display: none !important; }
.model-more { position: relative; }
.model-menu { position: absolute; right: 0; top: 48px; z-index: 40; min-width: 230px; padding: 6px; border: 1.5px solid #D1D5DB; border-radius: 10px; background: #fff; box-shadow: 0 6px 18px rgba(0,0,0,.12); display: flex; flex-direction: column; gap: 2px; }
.model-menu[hidden] { display: none; }
.model-menu > button, .model-menu > a { display: flex; align-items: center; gap: 8px; min-height: 40px; padding: 0 10px; border: none; border-radius: 8px; background: transparent; color: var(--model-ink); font: inherit; font-size: 17px; font-weight: 600; text-decoration: none; cursor: pointer; text-align: left; }
.model-menu > button:hover, .model-menu > a:hover { background: var(--model-hover); }
.model-menu i { font-size: 20px; color: #2563EB; }
.menu-row { display: flex; flex-direction: column; gap: 6px; padding: 6px 10px; font-size: 17px; font-weight: 600; color: var(--model-ink); }
.menu-seg { display: flex; gap: 4px; }
.menu-seg button { flex: 1; height: 32px; border: 1.5px solid #D1D5DB; border-radius: 6px; background: #fff; font: inherit; font-size: 17px; font-weight: 600; color: var(--model-ink); cursor: pointer; }
.menu-seg button[aria-pressed="true"] { border-color: #3B82F6; background: #DBEAFE; color: #1D4ED8; }
.model-stage { position: relative; }
.draw-layer { position: absolute; inset: 0; z-index: 20; pointer-events: none; }
.draw-layer.on { pointer-events: auto; cursor: crosshair; touch-action: none; }
.draw-bar { position: sticky; top: 8px; z-index: 25; display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 6px; width: fit-content; max-width: 100%; margin: 0 auto 12px; padding: 6px 8px; border: 1.5px solid #D1D5DB; border-radius: 10px; background: #fff; box-shadow: 0 2px 8px rgba(0,0,0,.08); font-size: 17px; font-weight: 600; }
.draw-bar[hidden] { display: none; }
.draw-bar button { display: inline-flex; align-items: center; justify-content: center; gap: 4px; min-width: 32px; height: 32px; padding: 0 6px; border: 1.5px solid transparent; border-radius: 8px; background: transparent; color: var(--model-ink); font: inherit; font-size: 17px; font-weight: 600; cursor: pointer; }
.draw-bar button:hover { background: var(--model-hover); }
.draw-bar button[aria-pressed="true"] { border-color: #3B82F6; background: #DBEAFE; color: #1D4ED8; }
.draw-bar i { font-size: 20px; }
.draw-bar .swatch { width: 18px; height: 18px; border-radius: 50%; border: 1.5px solid #1F2937; display: block; }
.draw-sep { width: 1px; height: 22px; background: #E5E7EB; }
.draw-text { position: absolute; z-index: 30; height: 32px; min-width: 120px; padding: 0 8px; border: 1.5px solid #3B82F6; border-radius: 6px; font: inherit; font-size: 17px; font-weight: 600; background: #fff; }


body.dark-mode .model-action[aria-pressed="true"] { background: #1E3A5F; border-color: #3B82F6; color: #BFDBFE; }
body.dark-mode .model-menu, body.dark-mode .draw-bar { background: #242424; border-color: #404040; box-shadow: 0 6px 18px rgba(0,0,0,.4); }
body.dark-mode .model-menu > button, body.dark-mode .model-menu > a, body.dark-mode .menu-row, body.dark-mode .draw-bar button { color: #F3F4F6; }
body.dark-mode .model-menu > button:hover, body.dark-mode .model-menu > a:hover, body.dark-mode .draw-bar button:hover { background: #2F2F2F; }
body.dark-mode .model-menu i { color: #93C5FD; }
body.dark-mode .menu-seg button { background: #262626; border-color: #4B4B4B; color: #F3F4F6; }
body.dark-mode .menu-seg button[aria-pressed="true"], body.dark-mode .draw-bar button[aria-pressed="true"] { background: #1E3A5F; border-color: #3B82F6; color: #BFDBFE; }
body.dark-mode .draw-sep { background: #404040; }
body.dark-mode .draw-bar .swatch { border-color: #F3F4F6; }
body.dark-mode .model-ideas summary, body.dark-mode .model-ideas li { color: #F3F4F6; }

html, body, .side-list, .model-menu { scrollbar-width: none; }
html::-webkit-scrollbar, body::-webkit-scrollbar, .side-list::-webkit-scrollbar, .model-menu::-webkit-scrollbar { display: none; }

.model-action[aria-pressed="true"], .menu-seg button[aria-pressed="true"], .draw-bar button[aria-pressed="true"] { background: #E5E7EB; border-color: #9CA3AF; color: #1F2937; }
.model-menu i { color: #4B5563; }
body.dark-mode .model-action[aria-pressed="true"], body.dark-mode .menu-seg button[aria-pressed="true"], body.dark-mode .draw-bar button[aria-pressed="true"] { background: #3A3A3A; border-color: #6B7280; color: #F3F4F6; }
body.dark-mode .model-menu i { color: #D1D5DB; }

.model-home { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: 8px; }
.model-home:hover { background: var(--model-hover); }
.model-home img { display: block; width: 30px; height: 30px; }
.model-side { position: fixed; left: 0; top: 0; bottom: 0; z-index: 35; width: 300px; max-width: 86vw; display: flex; flex-direction: column; background: #fff; border-right: 1px solid var(--model-edge); box-shadow: 4px 0 18px rgba(0,0,0,.12); }
.model-side[hidden] { display: none; }
.side-top { display: flex; align-items: center; gap: 6px; padding: 10px; border-bottom: 1px solid var(--model-edge); }
.side-search { flex: 1; min-width: 0; height: 36px; padding: 0 10px; border: 1.5px solid #D1D5DB; border-radius: 8px; font: inherit; font-size: 17px; font-weight: 400; color: var(--model-ink); background: #fff; }
.side-close { flex: none; width: 36px; height: 36px; border: none; border-radius: 8px; background: transparent; color: var(--model-mute); font-size: 20px; cursor: pointer; }
.side-close:hover { background: var(--model-hover); color: var(--model-ink); }
.side-list { flex: 1; overflow-y: auto; padding: 6px 10px 14px; display: flex; flex-direction: column; gap: 2px; }
.side-group + .side-group { border-top: 1px solid var(--model-edge); margin-top: 6px; padding-top: 6px; }
.side-domain { display: flex; align-items: flex-start; gap: 8px; padding: 8px 8px 4px; font-size: 16px; font-weight: 500; color: var(--model-ink); line-height: 1.35; }
.side-code { flex: none; min-width: 34px; padding: 1px 6px; border-radius: 6px; background: #E5E7EB; color: #1F2937; font-size: 14px; text-align: center; }
.side-app { display: flex; align-items: center; gap: 10px; min-height: 40px; padding: 0 8px 0 12px; border-radius: 8px; color: var(--model-ink); text-decoration: none; font-size: 16px; font-weight: 400; }
.side-app:hover { background: var(--model-hover); }
.side-app[aria-current="page"] { background: #E5E7EB; color: #1F2937; }
.side-app .grade { flex: none; color: #3B82F6; font-size: 14px; font-weight: 500; white-space: nowrap; }
.side-name { flex: 1; min-width: 0; }
.side-icon { flex: none; width: 24px; height: 24px; display: inline-flex; }
.side-icon svg { width: 24px; height: 24px; }
.side-scrim { position: fixed; inset: 0; background: rgba(0,0,0,.3); z-index: 30; }
.side-scrim[hidden] { display: none; }
body.dark-mode .model-side { background: #1F1F1F; border-right-color: #333333; color-scheme: dark; }
body.dark-mode .side-top { border-bottom-color: #333333; }
body.dark-mode .side-search { background: #262626; border-color: #4B4B4B; color: #F3F4F6; }
body.dark-mode .side-search::placeholder { color: #9CA3AF; }
body.dark-mode .side-close { color: #D1D5DB; }
body.dark-mode .side-domain { color: #F3F4F6; }
body.dark-mode .side-code { background: #3A3A3A; color: #F3F4F6; }
body.dark-mode .side-group + .side-group { border-top-color: #333333; }
body.dark-mode .side-app { color: #F3F4F6; }
body.dark-mode .side-app:hover, body.dark-mode .side-close:hover { background: #2A2A2A; }
body.dark-mode .side-app[aria-current="page"] { background: #333333; color: #F3F4F6; }
body.dark-mode .side-app .grade { color: #9CA3AF; }
@media (max-width: 767px) {
    .wide-only { display: none !important; }
    .narrow-only { display: flex !important; }
    .model-action .model-label { display: none; }
}

.model-bar { flex-wrap: nowrap; align-items: center; gap: 8px; min-height: 56px; padding: 6px 16px; }
.model-title { flex: 1 1 auto; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--model-ink); }
.model-actions { flex: none; flex-wrap: nowrap; gap: 8px; }
.model-back:focus-visible, .model-action:focus-visible, .model-home:focus-visible, .model-fit :focus-visible, .side-app:focus-visible, .side-search:focus-visible, .side-close:focus-visible, .model-menu > *:focus-visible, .menu-seg button:focus-visible, .draw-bar button:focus-visible { outline: 2px solid #4B5563; outline-offset: 2px; }
body.dark-mode .model-back:focus-visible, body.dark-mode .model-action:focus-visible, body.dark-mode .model-home:focus-visible, body.dark-mode .side-app:focus-visible, body.dark-mode .side-search:focus-visible, body.dark-mode .side-close:focus-visible, body.dark-mode .model-menu > *:focus-visible, body.dark-mode .menu-seg button:focus-visible, body.dark-mode .draw-bar button:focus-visible { outline-color: #D1D5DB; }
@media (max-width: 767px) { .model-bar { gap: 4px; padding: 6px 8px; } .model-actions { gap: 4px; } }
.model-cube { display: block; flex: none; width: 22px; height: 22px; }

.title-btn { display: inline-flex; align-items: center; max-width: 100%; min-height: 44px; padding: 0 10px; margin: 0; border: 1px solid transparent; border-radius: 8px; background: transparent; color: var(--model-ink); font: inherit; font-size: inherit; font-weight: inherit; cursor: pointer; }
.title-btn span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.title-btn:hover, .title-btn[aria-expanded="true"] { background: var(--model-hover); }
.title-btn:focus-visible { outline: 2px solid #4B5563; outline-offset: 2px; }
body.dark-mode .title-btn:focus-visible { outline-color: #D1D5DB; }
.side-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; min-height: 56px; padding: 6px 10px 6px 16px; border-bottom: 1px solid var(--model-edge); font-size: 17px; font-weight: 600; color: var(--model-ink); }
.side-top { border-bottom: none; padding: 10px 10px 4px; }
.side-app { padding: 0 8px 0 12px; }
.side-chev { flex: none; font-size: 18px; color: #9CA3AF; }
body.dark-mode .side-head { border-bottom-color: #333333; color: #F3F4F6; }
body.dark-mode .side-chev { color: #6B7280; }

.activity-panel { position: fixed; right: 0; top: 0; bottom: 0; z-index: 36; width: 380px; max-width: 100vw; display: flex; flex-direction: column; background: #fff; border-left: 1px solid var(--model-edge); box-shadow: -4px 0 18px rgba(0,0,0,.12); font-size: 17px; font-weight: 600; color: var(--model-ink); }
.activity-panel[hidden] { display: none; }
.activity-body { flex: 1; overflow-y: auto; scrollbar-width: none; padding: 14px 16px 20px; display: flex; flex-direction: column; gap: 14px; }
.activity-body::-webkit-scrollbar { display: none; }
.act-field { display: flex; flex-direction: column; gap: 6px; }
.act-label { color: var(--model-mute); font-size: 17px; font-weight: 600; }
.act-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.act-chip { min-height: 36px; padding: 0 12px; border: 1px solid #D1D5DB; border-radius: 999px; background: #fff; color: var(--model-ink); font: inherit; font-size: 17px; font-weight: 600; cursor: pointer; }
.act-chip[aria-pressed="true"] { background: #E5E7EB; border-color: #9CA3AF; }
.act-note, .act-text { width: 100%; padding: 8px 10px; border: 1.5px solid #D1D5DB; border-radius: 8px; font: inherit; font-size: 17px; font-weight: 600; line-height: 1.5; color: var(--model-ink); background: #fff; resize: vertical; box-sizing: border-box; }
.act-generate { display: flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; border: 1px solid #9CA3AF; border-radius: 8px; background: #E5E7EB; color: #1F2937; font: inherit; font-size: 17px; font-weight: 600; cursor: pointer; }
.act-generate i { font-size: 20px; }
.act-generate:disabled { cursor: progress; }
.act-empty { padding: 14px; border: 1px dashed #D1D5DB; border-radius: 8px; color: var(--model-mute); text-align: center; line-height: 1.5; }
.act-empty[hidden], .act-loading[hidden], .act-error[hidden], .act-result[hidden] { display: none; }
.act-loading { display: flex; flex-direction: column; gap: 8px; }
.act-loading span { height: 12px; border-radius: 6px; background: #E5E7EB; animation: actPulse 1.2s ease-in-out infinite; }
.act-loading span:nth-child(2) { width: 80%; } .act-loading span:nth-child(3) { width: 65%; }
@keyframes actPulse { 50% { opacity: .45; } }
@media (prefers-reduced-motion: reduce) { .act-loading span { animation: none; } }
.act-error { padding: 10px 12px; border-radius: 8px; background: #FEF2F2; color: #991B1B; line-height: 1.5; }
.act-result { display: flex; flex-direction: column; gap: 14px; }
.act-actions { display: flex; flex-wrap: wrap; gap: 6px; }
.act-actions button { display: inline-flex; align-items: center; gap: 6px; min-height: 40px; padding: 0 12px; border: 1px solid #D1D5DB; border-radius: 8px; background: #fff; color: var(--model-ink); font: inherit; font-size: 17px; font-weight: 600; cursor: pointer; }
.act-actions i { font-size: 20px; color: #4B5563; }
.act-chip:focus-visible, .act-generate:focus-visible, .act-actions button:focus-visible, .act-note:focus-visible, .act-text:focus-visible { outline: 2px solid #4B5563; outline-offset: 2px; }
body.dark-mode .activity-panel { background: #1F1F1F; border-left-color: #333333; color: #F3F4F6; color-scheme: dark; }
body.dark-mode .act-chip, body.dark-mode .act-actions button, body.dark-mode .act-note, body.dark-mode .act-text { background: #262626; border-color: #4B4B4B; color: #F3F4F6; }
body.dark-mode .act-chip[aria-pressed="true"], body.dark-mode .act-generate { background: #3A3A3A; border-color: #6B7280; color: #F3F4F6; }
body.dark-mode .act-actions i { color: #D1D5DB; }
body.dark-mode .act-empty { border-color: #4B4B4B; color: #D1D5DB; }
body.dark-mode .act-loading span { background: #333333; }
body.dark-mode .act-error { background: #3B1414; color: #FECACA; }
body.dark-mode .act-chip:focus-visible, body.dark-mode .act-generate:focus-visible, body.dark-mode .act-actions button:focus-visible, body.dark-mode .act-note:focus-visible, body.dark-mode .act-text:focus-visible { outline-color: #D1D5DB; }
@media (max-width: 767px) { .activity-panel { width: 100vw; border-left: none; } }
.side-title { display: inline-flex; align-items: center; gap: 8px; }
.act-note, .act-text { overflow: hidden; resize: none; }
.model-rail { display: none; }
@media (min-width: 600px) {
.model-rail { position: sticky; top: 0; flex: none; width: 64px; height: 100vh; height: 100dvh; display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 0; box-sizing: border-box; border-right: 1px solid var(--model-edge); background: #fff; overflow: hidden; }
}
.rail-apps { flex: 1; min-height: 0; width: 100%; display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 4px 0 8px; overflow-y: auto; scrollbar-width: none; }
.rail-apps::-webkit-scrollbar { display: none; }
.rail-cube { display: flex; align-items: center; justify-content: center; width: 44px; height: 44px; color: #4B5563; }
.rail-btn { flex: none; display: flex; align-items: center; justify-content: center; width: 44px; height: 44px; border: none; border-radius: 8px; background: transparent; color: var(--model-mute); font-size: 20px; cursor: pointer; text-decoration: none; }
.rail-btn:hover { background: var(--model-hover); color: var(--model-ink); }
.rail-btn[aria-current="page"] { background: #E5E7EB; }
.rail-btn:focus-visible { outline: 2px solid #4B5563; outline-offset: 2px; }
.rail-sep { width: 36px; border-top: 1px solid var(--model-edge); margin: 2px 0; }
.rail-tip { position: fixed; z-index: 50; transform: translateY(-50%); padding: 6px 10px; border-radius: 6px; background: #1F2937; color: #fff; font-size: 15px; font-weight: 400; white-space: nowrap; pointer-events: none; }
.rail-tip[hidden] { display: none; }
.side-app .side-icon, .rail-btn .side-icon { width: 24px; height: 24px; }
.side-icon svg { width: 24px; height: 24px; display: block; }
body.dark-mode .model-rail { background: #1F1F1F; border-right-color: #333333; }
body.dark-mode .rail-cube { color: #D1D5DB; }
body.dark-mode .rail-btn[aria-current="page"] { background: #3A3A3A; }
body.dark-mode .rail-btn:focus-visible { outline-color: #D1D5DB; }
body.dark-mode .rail-tip { background: #F3F4F6; color: #1F2937; }
.title-icon, .title-icon svg { flex: none; width: 28px; height: 28px; }
.title-icon { margin-right: 10px; }
.title-icon[hidden] { display: none; }
.rail-waffle, .model-waffle { display: inline-flex; align-items: center; justify-content: center; flex: none; border: none; background: transparent; color: #374151; font-size: 22px; cursor: pointer; }
.rail-waffle { width: 64px; height: 57px; border-bottom: 1px solid var(--model-edge); }
.rail-waffle:hover, .model-waffle:hover { background: var(--model-hover); }
.rail-waffle[aria-expanded="true"], .model-waffle[aria-expanded="true"] { background: #E5E7EB; color: #1F2937; }
.rail-waffle:focus-visible, .model-waffle:focus-visible { outline: 2px solid #4B5563; outline-offset: -2px; }
.model-waffle { display: none; width: 44px; height: 44px; border-radius: 8px; }
@media (max-width: 599px) { .model-waffle { display: inline-flex; } }
.model-home { width: auto; gap: 8px; padding: 0 8px; color: var(--model-ink); text-decoration: none; font-size: 17px; font-weight: 600; white-space: nowrap; }
.title-plain { display: inline-flex; align-items: center; max-width: 100%; min-height: 32px; padding-left: 12px; border-left: 1px solid var(--model-edge); }
.title-plain #modelTitle { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
@media (max-width: 599px) { .title-plain { padding-left: 6px; } .model-bar { gap: 2px; padding: 6px 6px; } .model-actions { gap: 2px; } .model-home { padding: 0 6px; } .title-icon { margin-right: 6px; } }
.model-side { top: 57px; }
.side-scrim { top: 57px; }
body.dark-mode .rail-waffle, body.dark-mode .model-waffle { color: #E5E7EB; }
body.dark-mode .rail-waffle[aria-expanded="true"], body.dark-mode .model-waffle[aria-expanded="true"] { background: #3A3A3A; color: #F3F4F6; }
body.dark-mode .rail-waffle:focus-visible, body.dark-mode .model-waffle:focus-visible { outline-color: #D1D5DB; }
.phone-only { display: none !important; }
@media (max-width: 599px) { .phone-hide { display: none !important; } .phone-only { display: flex !important; } }