:root {
    --ink: #12151a;
    --paper: #e6edf2;
    --panel: #f7f9fb;
    --line: #d0d8e0;
    --accent: #d4550a;
    --accent-2: #1d4e7a;
    --muted: #5b6570;
    --ok: #157a45;
    --warn: #b45309;
    --block: #9f1239;
    --scene: #9eb3c0;
    --mono: "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--paper); color: var(--ink); font: 14px/1.45 var(--mono); }
a { color: inherit; }

.flash { padding: 10px 16px; }
.flash-success { background: #dcfce7; }
.flash-error { background: #fee2e2; }

.btn {
    appearance: none;
    border: 1px solid #c5ced6;
    background: #fff;
    padding: 8px 14px;
    cursor: pointer;
    font: inherit;
    border-radius: 4px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.btn.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn.ghost { background: transparent; }
.link-danger { background: none; border: 0; color: var(--block); cursor: pointer; font: inherit; }

.home { max-width: 1100px; margin: 0 auto; padding: 32px 20px 64px; }
.home-head { display: flex; justify-content: space-between; gap: 24px; align-items: flex-start; }
.home-actions { display: flex; gap: 8px; align-items: flex-start; }
.brand, .brand-link { letter-spacing: .18em; font-weight: 700; font-size: 12px; text-decoration: none; }
.lead, .hint, .caption, .field-help, .help-text { color: var(--muted); }
.field-help, .help-text { margin: 4px 0 0; font-size: 12px; }
.project-grid { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.card { display: block; background: var(--panel); border: 1px solid var(--line); padding: 16px; text-decoration: none; min-height: 140px; }
.card-top { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 8px; }
.card-wrap { display: flex; flex-direction: column; gap: 8px; }
.mono { font-variant-numeric: tabular-nums; }
.status { font-size: 12px; padding: 2px 8px; border-radius: 99px; background: #eee; }
.status-ok { background: #dcfce7; color: var(--ok); }
.status-warn { background: #ffedd5; color: var(--warn); }
.status-block, .status-draft { background: #f3f4f6; }
.dims { font-size: 13px; }
.quiet-link { font-size: 12px; color: #9aa3b0; }
.eng-actions { display: flex; flex-wrap: wrap; gap: 6px; }
.return-form { display: flex; gap: 6px; flex: 1; min-width: 180px; }
.return-form input { flex: 1; padding: 8px; border: 1px solid var(--line); font: inherit; }

.cfg {
    display: grid;
    grid-template-columns: 360px 1fr;
    min-height: 100vh;
    height: 100vh;
}
.cfg-side {
    background: var(--panel);
    border-right: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    min-width: 0;
}
.cfg-side-head { padding: 14px 16px 8px; }
.cfg-status { margin: 6px 0; }
.cfg-stages {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    padding: 0 12px 8px;
    border-bottom: 1px solid var(--line);
}
.cfg-stages button {
    text-align: left;
    background: #eef2f6;
    color: var(--ink);
    border: 0;
    padding: 6px 8px;
    cursor: pointer;
    font: 12px/1.2 var(--mono);
    border-radius: 4px;
}
.cfg-stages button.is-on { background: var(--accent); color: #fff; }
.cfg-params { padding: 16px 16px 24px; overflow: auto; flex: 1; }
.cfg-params h2 { margin: 0 0 12px; font-size: 18px; }
.cfg-side-foot { padding: 12px 16px; border-top: 1px solid var(--line); }
.cfg-side-foot .btn { width: 100%; }

.field { margin-bottom: 12px; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.field input, .field select, .field textarea {
    width: 100%;
    padding: 8px;
    border: 1px solid var(--line);
    background: #fff;
    font: inherit;
    border-radius: 4px;
}
.nested { border: 1px solid var(--line); padding: 10px; margin-bottom: 10px; background: #fff; border-radius: 4px; }
.nested-remove { margin-top: 8px; }
.proto, .spec, .result { font-size: 14px; }
.mini { width: 100%; border-collapse: collapse; }
.mini th, .mini td, .spec td { border-bottom: 1px solid var(--line); padding: 4px 6px; text-align: left; }
.metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.metrics dt { color: var(--muted); font-size: 12px; }
.metrics dd { margin: 0; font-weight: 600; }
.warns { padding-left: 18px; }
.warns .blocking { color: var(--block); }
.warns .attention { color: var(--warn); }
.total { font-size: 18px; }
.result-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.wall-drops { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.version-list { padding-left: 18px; }

.cfg-scene { display: flex; flex-direction: column; min-width: 0; background: var(--scene); }
.eng-banner {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    padding: 8px 12px;
    background: #fff7ed;
    border-bottom: 1px solid #fdba74;
    font-size: 13px;
}
.view-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 8px 10px;
    background: #15181c;
    color: #e8eef2;
}
.view-group { display: flex; flex-wrap: wrap; gap: 2px; }
.view-bar button {
    background: transparent;
    color: #d5dde4;
    border: 0;
    padding: 6px 10px;
    cursor: pointer;
    font: 12px/1.2 var(--mono);
    border-radius: 4px;
}
.view-bar button.is-on { background: var(--accent); color: #fff; }
.scene-stack { position: relative; flex: 1; min-height: 0; }
.view { position: absolute; inset: 0; }
.view[hidden] { display: none !important; }
.view canvas { display: block; width: 100%; height: 100%; }
.spec-view { overflow: auto; background: #f4f1ea; padding: 16px; position: absolute; inset: 0; }
.facades { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 12px; height: 100%; overflow: auto; }
.facades figure { margin: 0; background: #fff; padding: 8px; }
.is-placing [data-view-panel="3d"],
.is-placing [data-view-panel="facades"] { cursor: crosshair; }

.opening-dock {
    position: absolute;
    left: 12px;
    right: 12px;
    bottom: 12px;
    background: rgba(15, 18, 22, 0.82);
    color: #fff;
    padding: 10px 12px;
    border-radius: 8px;
    pointer-events: none;
}
.opening-dock-label { margin: 0 0 8px; font-size: 12px; color: #cbd5e1; }
.opening-palette { display: flex; flex-wrap: wrap; gap: 6px; pointer-events: auto; }
.opening-palette button {
    background: #2a333c;
    color: #fff;
    border: 1px solid #4b5563;
    padding: 6px 10px;
    cursor: pointer;
    font: 12px/1.2 var(--mono);
    border-radius: 4px;
}
.opening-palette button.is-on { background: var(--accent); border-color: var(--accent); }
.place-hint { margin: 8px 0 0; font-size: 12px; color: #fde68a; }
.nested input[type="checkbox"] { margin-right: 6px; }

.strip {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    padding: 10px 14px;
    background: #15181c;
    color: #f3efe6;
    font-size: 13px;
}

@media (max-width: 1100px) {
    .cfg { grid-template-columns: 1fr; height: auto; }
    .cfg-scene { min-height: 70vh; }
    .scene-stack { min-height: 60vh; }
}