:root {
  --bg1: #eef9ff;
  --bg2: #f7fcff;
  --bg3: #eff6ff;
  --panel: rgba(255,255,255,.82);
  --panel-solid: #ffffff;
  --ink: #18213a;
  --muted: #667085;
  --line: rgba(70, 86, 120, .14);
  --accent: #0b67c2;
  --accent2: #10b8e8;
  --accent3: #11c5b1;
  --warn: #f59e0b;
  --danger: #ef4444;
  --shadow: 0 20px 54px rgba(52, 64, 84, .13);
  --radius: 24px;
  --fontScale: 1;
}
[data-theme="ocean"] { --bg1:#eef9ff; --bg2:#f7fcff; --bg3:#eff6ff; --accent:#0b67c2; --accent2:#10b8e8; --accent3:#11c5b1; }
[data-theme="mint"] { --bg1:#f5fff7; --bg2:#edfff9; --bg3:#f9fbff; --accent:#10b981; --accent2:#06b6d4; --accent3:#84cc16; }
[data-theme="violet"] { --bg1:#fbf7ff; --bg2:#f1f4ff; --bg3:#fff8fc; --accent:#8b5cf6; --accent2:#ec4899; --accent3:#06b6d4; }
[data-theme="dark"] { --bg1:#07111f; --bg2:#0c1628; --bg3:#111827; --panel:rgba(17,24,39,.84); --panel-solid:#111827; --ink:#f8fafc; --muted:#a6b0c2; --line:rgba(255,255,255,.12); --shadow:0 20px 60px rgba(0,0,0,.28); }

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: calc(15px * var(--fontScale));
  color: var(--ink);
  background:
    radial-gradient(circle at 18% -10%, color-mix(in srgb, var(--accent2) 20%, transparent), transparent 34rem),
    radial-gradient(circle at 92% 4%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 36rem),
    linear-gradient(135deg, var(--bg1), var(--bg2) 55%, var(--bg3));
  overflow: hidden;
}
button, input, select, textarea { font: inherit; }
button { -webkit-user-select:none; user-select:none; }
.app-shell {
  display: grid;
  grid-template-columns: 292px minmax(0,1fr);
  height: 100vh;
  overflow: hidden;
}
.sidebar {
  height: 100vh;
  padding: 18px 16px;
  color: #fff;
  background:
    radial-gradient(circle at 10% 5%, rgba(16,184,232,.32), transparent 18rem),
    linear-gradient(180deg, #063964 0%, #075985 48%, #08335a 100%);
  box-shadow: 20px 0 50px rgba(17,24,39,.18);
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow: hidden;
}
[data-theme="dark"] .sidebar { background: linear-gradient(180deg,#020617,#111827); }
.brand-block {
  padding: 14px;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 22px;
  background: rgba(255,255,255,.08);
}
.brand-image { width: 100%; height: 86px; object-fit: contain; display: block; filter: drop-shadow(0 14px 20px rgba(0,0,0,.24)); }
.steps { display: grid; gap: 6px; overflow: auto; padding-right: 2px; scrollbar-width: thin; }
.step {
  display: grid;
  grid-template-columns: 38px 1fr;
  align-items: center;
  gap: 10px;
  width: 100%;
  border: 1px solid transparent;
  border-radius: 15px;
  background: transparent;
  color: rgba(255,255,255,.74);
  padding: 10px 12px;
  text-align: left;
  cursor: pointer;
  font-weight: 760;
  transition: transform .18s ease, background .18s ease, border .18s ease;
}
.step span {
  display: grid;
  place-items: center;
  height: 28px;
  border-radius: 11px;
  background: rgba(255,255,255,.09);
  color: rgba(255,255,255,.78);
  font-size: 11px;
  font-weight: 900;
}
.step:hover { background: rgba(255,255,255,.08); color: #fff; transform: translateX(2px); }
.step.active {
  color: #fff;
  border-color: rgba(255,255,255,.18);
  background: linear-gradient(135deg, rgba(14,165,233,.95), rgba(6,182,212,.42));
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.04), 0 12px 28px rgba(0,0,0,.15);
}
.step.active span { background: #fff; color: #172554; }
.sidebar-footer {
  margin-top: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.sidebar-footer div { padding: 12px; border-radius: 16px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.10); }
.sidebar-footer span { display:block; color:rgba(255,255,255,.62); font-size:11px; font-weight:800; text-transform:uppercase; letter-spacing:.08em; }
.sidebar-footer strong { display:block; margin-top:4px; font-size:18px; }
.workspace {
  min-width: 0;
  height: 100vh;
  overflow: hidden;
  padding: 18px 20px 20px;
}
.topbar {
  height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}
h1 { margin: 0; font-size: clamp(26px, 2.3vw, 36px); line-height: 1; letter-spacing: -.052em; }
#stepCaption { margin: 7px 0 0; color: var(--muted); font-size: 13px; font-weight: 650; }

.top-actions { display:flex; align-items:center; gap:10px; }
.theme-icon { width:42px; height:42px; border-radius:999px; border:1px solid var(--line); background:var(--panel-solid); color:var(--ink); font-size:21px; font-weight:900; cursor:pointer; box-shadow:0 10px 26px rgba(0,0,0,.07); }
.bc-tabs, .post-tabs { display:grid; grid-template-columns:repeat(4,1fr); gap:10px; margin-bottom:14px; }
.post-tabs { grid-template-columns:repeat(5,1fr); }
.bc-card, .post-card { border:1px solid var(--line); border-radius:18px; background:rgba(255,255,255,.62); color:var(--ink); padding:12px; min-height:78px; display:grid; gap:4px; place-items:center; text-align:center; cursor:pointer; box-shadow:0 8px 22px rgba(2,44,80,.06); }
[data-theme="dark"] .bc-card, [data-theme="dark"] .post-card { background:rgba(255,255,255,.05); }
.bc-card span, .post-card span { width:34px; height:34px; border-radius:13px; display:grid; place-items:center; background:color-mix(in srgb, var(--accent2) 14%, white); color:var(--accent); font-weight:950; font-size:18px; }
.bc-card small { color:var(--muted); font-size:11px; font-weight:750; }
.bc-card.active, .post-card.active { border-color:color-mix(in srgb, var(--accent) 70%, var(--line)); box-shadow:0 0 0 3px color-mix(in srgb, var(--accent) 13%, transparent); background:color-mix(in srgb, var(--accent2) 10%, white); }
.bc-editor-grid { display:grid; grid-template-columns:1fr 1fr; gap:12px; }
.summary-strip { border:1px solid var(--line); border-radius:16px; padding:12px 14px; background:color-mix(in srgb, var(--accent2) 8%, var(--panel-solid)); color:var(--ink); font-weight:850; }
.line-list { min-height:42px; border:1px dashed var(--line); border-radius:13px; padding:10px; display:flex; gap:8px; flex-wrap:wrap; color:var(--muted); }
.line-list span { background:color-mix(in srgb, var(--accent2) 10%, white); border:1px solid color-mix(in srgb, var(--accent2) 20%, var(--line)); color:var(--ink); border-radius:999px; padding:5px 9px; font-weight:800; }
.export-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-bottom:12px; }
.export-tile { border:1px solid var(--line); background:rgba(255,255,255,.70); color:var(--ink); border-radius:20px; padding:16px; text-align:center; display:grid; gap:5px; cursor:pointer; min-height:112px; }
.export-tile span { display:grid; place-items:center; justify-self:center; width:42px; height:42px; border-radius:15px; background:linear-gradient(135deg,var(--accent),var(--accent2)); color:white; font-weight:950; }
.export-tile b { font-size:16px; }
.export-tile small { color:var(--muted); font-weight:700; }
.setting-row { display:flex; align-items:center; justify-content:space-between; gap:14px; }
.setting-row p { margin:.25rem 0 0; color:var(--muted); font-size:13px; }
.about-card { display:grid; grid-template-columns:210px 1fr; gap:16px; align-items:center; }
.about-card img { width:100%; object-fit:contain; }
input[type="range"] { width:100%; accent-color:var(--accent); margin:8px 0 10px; }

.run-chip {
  white-space: nowrap;
  color: color-mix(in srgb, var(--accent) 80%, var(--ink));
  background: color-mix(in srgb, var(--accent) 12%, white);
  border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
  border-radius: 999px;
  padding: 10px 14px;
  font-weight: 900;
  box-shadow: 0 10px 26px rgba(0,0,0,.06);
}
[data-theme="dark"] .run-chip { background: rgba(255,255,255,.08); }
.top-actions { display:flex; align-items:center; gap:10px; }
.theme-icon { width:42px; height:42px; border-radius:999px; border:1px solid var(--line); background:var(--panel-solid); color:var(--ink); font-size:21px; font-weight:900; cursor:pointer; box-shadow:0 10px 26px rgba(0,0,0,.07); }
.bc-tabs, .post-tabs { display:grid; grid-template-columns:repeat(4,1fr); gap:10px; margin-bottom:14px; }
.post-tabs { grid-template-columns:repeat(5,1fr); }
.bc-card, .post-card { border:1px solid var(--line); border-radius:18px; background:rgba(255,255,255,.62); color:var(--ink); padding:12px; min-height:78px; display:grid; gap:4px; place-items:center; text-align:center; cursor:pointer; box-shadow:0 8px 22px rgba(2,44,80,.06); }
[data-theme="dark"] .bc-card, [data-theme="dark"] .post-card { background:rgba(255,255,255,.05); }
.bc-card span, .post-card span { width:34px; height:34px; border-radius:13px; display:grid; place-items:center; background:color-mix(in srgb, var(--accent2) 14%, white); color:var(--accent); font-weight:950; font-size:18px; }
.bc-card small { color:var(--muted); font-size:11px; font-weight:750; }
.bc-card.active, .post-card.active { border-color:color-mix(in srgb, var(--accent) 70%, var(--line)); box-shadow:0 0 0 3px color-mix(in srgb, var(--accent) 13%, transparent); background:color-mix(in srgb, var(--accent2) 10%, white); }
.bc-editor-grid { display:grid; grid-template-columns:1fr 1fr; gap:12px; }
.summary-strip { border:1px solid var(--line); border-radius:16px; padding:12px 14px; background:color-mix(in srgb, var(--accent2) 8%, var(--panel-solid)); color:var(--ink); font-weight:850; }
.line-list { min-height:42px; border:1px dashed var(--line); border-radius:13px; padding:10px; display:flex; gap:8px; flex-wrap:wrap; color:var(--muted); }
.line-list span { background:color-mix(in srgb, var(--accent2) 10%, white); border:1px solid color-mix(in srgb, var(--accent2) 20%, var(--line)); color:var(--ink); border-radius:999px; padding:5px 9px; font-weight:800; }
.export-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-bottom:12px; }
.export-tile { border:1px solid var(--line); background:rgba(255,255,255,.70); color:var(--ink); border-radius:20px; padding:16px; text-align:center; display:grid; gap:5px; cursor:pointer; min-height:112px; }
.export-tile span { display:grid; place-items:center; justify-self:center; width:42px; height:42px; border-radius:15px; background:linear-gradient(135deg,var(--accent),var(--accent2)); color:white; font-weight:950; }
.export-tile b { font-size:16px; }
.export-tile small { color:var(--muted); font-weight:700; }
.setting-row { display:flex; align-items:center; justify-content:space-between; gap:14px; }
.setting-row p { margin:.25rem 0 0; color:var(--muted); font-size:13px; }
.about-card { display:grid; grid-template-columns:210px 1fr; gap:16px; align-items:center; }
.about-card img { width:100%; object-fit:contain; }
input[type="range"] { width:100%; accent-color:var(--accent); margin:8px 0 10px; }

.run-chip { background: rgba(255,255,255,.08); }
.content-grid {
  display: grid;
  grid-template-columns: minmax(320px, 420px) minmax(0,1fr);
  gap: 16px;
  height: calc(100vh - 106px);
  overflow: hidden;
}
.panel {
  background: var(--panel);
  border: 1px solid rgba(255,255,255,.70);
  border-color: var(--line);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  backdrop-filter: blur(18px);
  min-width: 0;
}
.controls-panel { padding: 18px; overflow: auto; overscroll-behavior: contain; }
.visual-panel { padding: 16px; display: grid; grid-template-rows: auto minmax(300px, 1fr) auto; overflow: hidden; }
.panel-title { margin: 0 0 12px; font-size: 22px; line-height: 1.08; letter-spacing: -.035em; }
.panel-note { margin: 0 0 14px; color: var(--muted); line-height: 1.45; }
.group { padding: 14px; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.52); margin-bottom: 12px; }
[data-theme="dark"] .group { background: rgba(255,255,255,.04); }
.group-title { margin: 0 0 12px; font-size: 13px; text-transform: uppercase; letter-spacing: .09em; color: var(--accent); font-weight: 950; }
.field { margin-bottom: 12px; }
.field:last-child { margin-bottom: 0; }
.field label { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 6px; color: color-mix(in srgb, var(--ink) 82%, var(--muted)); font-size: 12px; font-weight: 900; }
.field small { color: var(--muted); font-weight: 700; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
input[type="number"], input[type="text"], input[type="email"], select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel-solid) 88%, transparent);
  color: var(--ink);
  border-radius: 13px;
  padding: 10px 11px;
  outline: 0;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.45);
  transition: border .16s ease, box-shadow .16s ease;
}
input:focus, select:focus, textarea:focus { border-color: color-mix(in srgb, var(--accent) 55%, var(--line)); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 14%, transparent); }
textarea { min-height: 130px; resize: vertical; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12px; }
.checkbox-row { display: flex; gap: 10px; align-items: center; color: var(--ink); font-weight: 850; }
.checkbox-row input { width: 18px; height: 18px; accent-color: var(--accent); }
.btn {
  border: 0;
  border-radius: 14px;
  padding: 11px 14px;
  cursor: pointer;
  color: var(--ink);
  font-weight: 900;
  transition: transform .16s ease, filter .16s ease;
}
.btn:hover { transform: translateY(-1px); filter: brightness(1.02); }
.btn.primary { background: linear-gradient(135deg, var(--accent), var(--accent2)); color: white; box-shadow: 0 14px 26px color-mix(in srgb, var(--accent) 28%, transparent); }
.btn.secondary { background: var(--panel-solid); border: 1px solid var(--line); }
.btn.soft { background: color-mix(in srgb, var(--accent) 10%, var(--panel-solid)); border: 1px solid color-mix(in srgb, var(--accent) 18%, var(--line)); color: color-mix(in srgb, var(--accent) 80%, var(--ink)); }
.btn.danger { background: color-mix(in srgb, var(--danger) 12%, var(--panel-solid)); color: var(--danger); border: 1px solid color-mix(in srgb, var(--danger) 20%, var(--line)); }
.action-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 12px; }
.action-grid.three { grid-template-columns: repeat(3, 1fr); }
.kpi-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 12px; }
.kpi { padding: 13px; border: 1px solid var(--line); border-radius: 17px; background: rgba(255,255,255,.52); }
[data-theme="dark"] .kpi { background: rgba(255,255,255,.04); }
.kpi span { display:block; color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing:.08em; font-weight: 900; }
.kpi strong { display:block; margin-top:4px; font-size:17px; letter-spacing:-.02em; }
.visual-header { display: flex; justify-content: space-between; gap: 14px; align-items: flex-start; margin-bottom: 12px; }
.visual-header h2 { margin: 0; font-size: 20px; letter-spacing: -.03em; }
.visual-header p { margin: 5px 0 0; color: var(--muted); line-height: 1.4; font-size: 13px; }
.segmented { display:flex; gap:5px; flex-wrap:wrap; justify-content:flex-end; padding: 5px; border-radius: 16px; background: color-mix(in srgb, var(--accent) 8%, transparent); border: 1px solid var(--line); }
.segmented button { border:0; background:transparent; cursor:pointer; border-radius:12px; padding:8px 10px; color:var(--muted); font-weight:900; }
.segmented button.selected { background: var(--panel-solid); color: var(--accent); box-shadow: 0 8px 18px rgba(0,0,0,.06); }
.canvas-shell { position: relative; min-height: 300px; overflow: hidden; border: 1px solid var(--line); border-radius: 20px; background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.62)); overscroll-behavior: contain; }
[data-theme="dark"] .canvas-shell { background: linear-gradient(180deg, rgba(15,23,42,.95), rgba(15,23,42,.70)); }
#mainCanvas { display:block; width:100%; height:100%; min-height: 300px; }
.legend { position:absolute; right:14px; bottom:14px; min-width:150px; padding:10px; border:1px solid var(--line); border-radius:15px; background: color-mix(in srgb, var(--panel-solid) 86%, transparent); box-shadow: 0 14px 26px rgba(0,0,0,.10); color:var(--muted); font-size:12px; }
.legend-bar { height: 12px; border-radius:999px; margin-bottom:8px; background: linear-gradient(90deg, #18213a, #225ddc, #06b6d4, #22c55e, #facc15, #fb923c, #ef4444); }
.legend-row { display:flex; justify-content:space-between; gap:12px; font-weight:850; }
.plot-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 12px; min-height: 204px; }
.small-plot { overflow: hidden; border: 1px solid var(--line); border-radius: 19px; padding: 11px; background: rgba(255,255,255,.52); }
[data-theme="dark"] .small-plot { background: rgba(255,255,255,.04); }
.plot-title { display:flex; justify-content:space-between; gap:10px; align-items:center; margin-bottom:6px; }
.plot-title h3 { margin:0; font-size:13px; color:var(--ink); }
.plot-title span { color: var(--muted); font-size: 12px; font-weight: 850; }
.small-plot canvas { width:100%; height: 166px; display:block; }
.pill-row { display:flex; flex-wrap:wrap; gap:7px; }
.pill { padding: 7px 9px; border:1px solid color-mix(in srgb, var(--accent) 20%, var(--line)); border-radius:999px; background: color-mix(in srgb, var(--accent) 8%, transparent); color: color-mix(in srgb, var(--accent) 80%, var(--ink)); font-weight:900; font-size:12px; }
.info-box, .warning-box { border-radius: 16px; padding: 13px; line-height: 1.42; margin: 12px 0; font-size: 13px; }
.info-box { border:1px solid color-mix(in srgb, var(--accent2) 20%, var(--line)); background: color-mix(in srgb, var(--accent2) 10%, transparent); color: color-mix(in srgb, var(--accent2) 52%, var(--ink)); }
.warning-box { border:1px solid color-mix(in srgb, var(--warn) 25%, var(--line)); background: color-mix(in srgb, var(--warn) 11%, transparent); color: color-mix(in srgb, var(--warn) 58%, var(--ink)); }
.table { width:100%; border-collapse:collapse; overflow:hidden; border-radius:14px; font-size:13px; }
.table th, .table td { border-bottom:1px solid var(--line); padding:9px 8px; text-align:left; }
.table th { color:var(--muted); font-size:11px; text-transform:uppercase; letter-spacing:.08em; }
.modal { position:fixed; inset:0; z-index:50; display:grid; place-items:center; padding:20px; background: rgba(15,23,42,.48); backdrop-filter: blur(10px); }
.modal[hidden] { display:none; }
.modal-card { width:min(680px, 100%); padding:26px; border-radius:28px; background:var(--panel-solid); box-shadow:0 28px 90px rgba(0,0,0,.30); text-align:center; }
.modal-card h2 { margin:10px 0 8px; font-size:26px; letter-spacing:-.04em; }
.modal-card p { margin: 0 0 12px; color:var(--muted); }
.spinner { width:48px; height:48px; margin:0 auto; border:5px solid color-mix(in srgb, var(--accent) 12%, transparent); border-top-color:var(--accent); border-right-color:var(--accent2); border-radius:50%; animation:spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
#modalResidualCanvas { width:100%; height:210px; border:1px solid var(--line); border-radius:18px; background:rgba(255,255,255,.45); display:block; margin-bottom:12px; }
.progress { height:12px; border-radius:999px; background:color-mix(in srgb, var(--accent) 10%, var(--panel-solid)); overflow:hidden; }
.progress div { height:100%; width:0%; border-radius:inherit; background:linear-gradient(90deg, var(--accent), var(--accent2), var(--accent3)); transition:width .16s ease; }
.run-log { margin-top:12px; max-height:108px; overflow:auto; text-align:left; border-radius:15px; padding:11px; background:#0f172a; color:#dff8ff; font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; font-size:12px; }
.hidden { display:none !important; }
@media (max-width: 1180px) {
  body { overflow:auto; }
  .app-shell { grid-template-columns:1fr; height:auto; min-height:100vh; overflow:visible; }
  .sidebar { height:auto; overflow:visible; }
  .steps { grid-template-columns: repeat(3, minmax(0,1fr)); overflow:visible; }
  .workspace { height:auto; overflow:visible; }
  .content-grid { height:auto; grid-template-columns:1fr; overflow:visible; }
  .visual-panel { min-height:720px; }
}
@media (max-width: 760px) {
  .steps, .grid-2, .grid-3, .plot-row, .kpi-grid, .action-grid, .action-grid.three { grid-template-columns:1fr; }
  .workspace { padding:14px; }
  .topbar, .visual-header { height:auto; flex-direction:column; align-items:stretch; }
}

/* Professional interface extensions */
:root,
[data-theme="ocean"] {
  --bg1:#f2fbff;
  --bg2:#ffffff;
  --bg3:#eaf7ff;
  --accent:#0878e7;
  --accent2:#12b8ea;
  --accent3:#12c8bd;
  --ink:#10233f;
  --muted:#64748b;
  --line:rgba(15, 50, 90, .13);
}
.sidebar {
  background:
    radial-gradient(circle at 0% 0%, rgba(18,184,234,.34), transparent 18rem),
    radial-gradient(circle at 120% 35%, rgba(8,120,231,.22), transparent 16rem),
    linear-gradient(180deg, #05264c 0%, #073b70 48%, #062946 100%) !important;
}
.brand-block {
  padding: 12px 12px;
  border: 1px solid rgba(18,184,234,.22) !important;
  background: linear-gradient(135deg, rgba(255,255,255,.98), rgba(239,250,255,.95)) !important;
  box-shadow: 0 18px 34px rgba(2, 22, 45, .20), inset 0 0 0 1px rgba(255,255,255,.72);
}
.brand-image {
  height: 72px !important;
  object-fit: contain;
  filter: drop-shadow(0 8px 12px rgba(8,120,231,.12)) !important;
}
.step {
  grid-template-columns: 40px 1fr !important;
  border-radius: 14px !important;
  padding: 10px 12px !important;
  color: rgba(255,255,255,.82) !important;
}
.step .nav-icon {
  width: 31px;
  height: 31px;
  border-radius: 10px;
  background: rgba(255,255,255,.11);
  color: #e9fbff;
  border: 1px solid rgba(255,255,255,.13);
  font-size: 0;
}
.step .nav-icon svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}
.step:hover .nav-icon { background: rgba(255,255,255,.18); color:#fff; }
.step.active {
  background: linear-gradient(135deg, #0878e7 0%, #0ea5e9 68%, #12c8bd 100%) !important;
  box-shadow: 0 14px 32px rgba(8,120,231,.30) !important;
}
.step.active .nav-icon {
  background: rgba(255,255,255,.96) !important;
  color:#075eb8 !important;
  border-color: rgba(255,255,255,.80);
}
.plot-row[hidden], .small-plot[hidden], #plotRow[hidden] {
  display: none !important;
  visibility: hidden !important;
}
.content-grid.clean-preview .visual-panel {
  grid-template-rows: auto minmax(0,1fr) !important;
}
.content-grid.clean-preview .canvas-shell {
  min-height: 0;
  height: 100%;
}
.info-box.step-help {
  background: rgba(8,120,231,.07);
  border-color: rgba(8,120,231,.18);
  color: #17446f;
}
[data-theme="dark"] .info-box.step-help { color:#d9f5ff; background:rgba(18,184,234,.10); }


/* Professional interface extensions */
[data-theme="dark"] {
  --bg1:#020817;
  --bg2:#071527;
  --bg3:#0b2038;
  --panel:rgba(10,24,42,.88);
  --panel-solid:#0b1b31;
  --ink:#eef8ff;
  --muted:#a7bbd1;
  --line:rgba(165,205,255,.16);
  --accent:#38bdf8;
  --accent2:#22d3ee;
  --accent3:#2dd4bf;
  --shadow:0 22px 70px rgba(0,0,0,.42);
}
[data-theme="dark"] body {
  background:
    radial-gradient(circle at 15% -12%, rgba(34,211,238,.15), transparent 32rem),
    radial-gradient(circle at 92% 5%, rgba(14,165,233,.13), transparent 36rem),
    linear-gradient(135deg, var(--bg1), var(--bg2) 58%, var(--bg3));
}
[data-theme="dark"] .sidebar {
  background:
    radial-gradient(circle at 0% 0%, rgba(34,211,238,.17), transparent 18rem),
    linear-gradient(180deg, #010713 0%, #031426 55%, #020817 100%) !important;
  box-shadow: 22px 0 60px rgba(0,0,0,.42);
}
.brand-block {
  background: linear-gradient(135deg, rgba(1,28,55,.76), rgba(3,69,111,.42)) !important;
  border-color: rgba(34,211,238,.22) !important;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.06), 0 18px 34px rgba(2, 22, 45, .20) !important;
}
[data-theme="dark"] .brand-block {
  background: linear-gradient(135deg, rgba(2,8,23,.94), rgba(8,47,73,.58)) !important;
  border-color: rgba(56,189,248,.22) !important;
}
.brand-image { filter: drop-shadow(0 12px 18px rgba(18,184,234,.22)) !important; }
[data-theme="dark"] .panel,
[data-theme="dark"] .group,
[data-theme="dark"] .small-plot,
[data-theme="dark"] .export-tile,
[data-theme="dark"] .bc-card,
[data-theme="dark"] .post-card,
[data-theme="dark"] .kpi {
  background: rgba(8,22,39,.72) !important;
  border-color: rgba(165,205,255,.14) !important;
}
[data-theme="dark"] input[type="number"],
[data-theme="dark"] input[type="text"],
[data-theme="dark"] input[type="email"],
[data-theme="dark"] select,
[data-theme="dark"] textarea {
  background:#081a2e !important;
  color:#eef8ff !important;
  border-color:rgba(165,205,255,.18) !important;
}
[data-theme="dark"] .canvas-shell {
  background: linear-gradient(180deg, rgba(7,21,39,.96), rgba(10,31,52,.78)) !important;
}
[data-theme="dark"] .theme-icon,
[data-theme="dark"] .run-chip {
  background:#071527 !important;
  color:#e0f7ff !important;
  border-color:rgba(165,205,255,.18) !important;
}
.content-grid.clean-preview #plotRow,
.content-grid.clean-preview .plot-row {
  display:none !important;
  visibility:hidden !important;
  min-height:0 !important;
  height:0 !important;
  margin:0 !important;
}
.content-grid.bc-layout {
  grid-template-columns: minmax(540px, 620px) minmax(460px, 1fr);
}
.content-grid.bc-layout .controls-panel { overflow-y:auto; overflow-x:hidden; }
.content-grid.bc-layout .visual-panel { min-width:0; }
.content-grid.bc-layout .bc-tabs { grid-template-columns: repeat(4, minmax(0,1fr)); gap:9px; }
.content-grid.bc-layout .bc-card { min-height:92px; padding:10px 8px; }
.content-grid.bc-layout .bc-card b { font-size:14px; line-height:1.15; }
.content-grid.bc-layout .bc-card small { font-size:10px; line-height:1.15; }
.content-grid.bc-layout .bc-editor-grid { grid-template-columns: repeat(2, minmax(0,1fr)); gap:12px; min-width:0; }
.content-grid.bc-layout .group { min-width:0; }
.content-grid.about-layout { grid-template-columns: minmax(0, 1fr); }
.content-grid.about-layout .visual-panel { display:none !important; }
.content-grid.about-layout .controls-panel { max-width:1100px; }
.post-tabs { grid-template-columns: repeat(3, minmax(0, 1fr)) !important; }
.step .nav-icon svg { width:22px !important; height:22px !important; stroke-width:2.35 !important; }
.step .nav-icon { background:rgba(255,255,255,.14) !important; }
.step.active .nav-icon { background:#f3fbff !important; color:#075eb8 !important; }
.info-box.step-help { font-weight:650; }
@media (max-width: 1320px) {
  .content-grid.bc-layout { grid-template-columns: 1fr; overflow:auto; }
  .content-grid.bc-layout .visual-panel { min-height:520px; }
  .content-grid.bc-layout .bc-tabs { grid-template-columns: repeat(2, minmax(0,1fr)); }
}

/* Professional interface extensions */
[data-theme="dark"] {
  --bg1:#020617;
  --bg2:#071426;
  --bg3:#0b1f33;
  --panel:rgba(7,18,34,.88);
  --panel-solid:#0b1b2f;
  --ink:#ecfeff;
  --muted:#9cc7da;
  --line:rgba(148,215,255,.17);
  --accent:#38bdf8;
  --accent2:#06b6d4;
  --accent3:#2dd4bf;
}
[data-theme="dark"] body {
  background: radial-gradient(circle at 20% -10%, rgba(6,182,212,.18), transparent 33rem), linear-gradient(135deg, #020617, #06172b 56%, #082032) !important;
}
[data-theme="dark"] .btn.secondary,
[data-theme="dark"] .btn.soft,
[data-theme="dark"] .export-tile,
[data-theme="dark"] .summary-strip,
[data-theme="dark"] .info-box,
[data-theme="dark"] .warning-box,
[data-theme="dark"] .line-list span {
  background:#0b1b2f !important;
  color:var(--ink) !important;
  border-color:rgba(148,215,255,.18) !important;
}
[data-theme="dark"] .bc-card.active,
[data-theme="dark"] .post-card.active {
  background:linear-gradient(135deg, rgba(56,189,248,.25), rgba(45,212,191,.10)) !important;
  border-color:rgba(56,189,248,.70) !important;
}
[data-theme="dark"] .bc-card span,
[data-theme="dark"] .post-card span {
  background:rgba(56,189,248,.16) !important;
  color:#e0faff !important;
}
.post-tabs { grid-template-columns: repeat(2, minmax(0, 1fr)) !important; }
.check-grid { display:grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap:10px; margin-top:10px; }
.check-grid .checkbox-row { border:1px solid var(--line); border-radius:14px; padding:10px 12px; background:color-mix(in srgb, var(--panel-solid) 70%, transparent); }
.content-grid.clean-preview #plotRow,
.content-grid.clean-preview .plot-row { display:none !important; }

/* Professional interface extensions */
.range-number input[type="range"] { display:block; width:100%; margin: 6px 0 8px; }
.range-number input[type="number"] { max-width: 150px; justify-self: end; }
[data-theme="dark"] input[type="number"], [data-theme="dark"] input[type="text"], [data-theme="dark"] select, [data-theme="dark"] textarea { background: rgba(15,23,42,.84); color: var(--ink); border-color: rgba(226,232,240,.16); }
[data-theme="dark"] .btn.secondary, [data-theme="dark"] .export-tile { background: rgba(15,23,42,.80); }


/* Mobile browser usability: normal page scroll, compact workflow nav, smaller canvases, and back-to-top control */
.scroll-fab {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 60;
  width: 46px;
  height: 46px;
  border: 0;
  border-radius: 999px;
  display: none;
  place-items: center;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 16px 34px rgba(2, 44, 80, .28);
  font-size: 24px;
  font-weight: 950;
}
.scroll-fab.show { display: grid; }

@media (max-width: 760px) {
  html, body {
    height: auto !important;
    min-height: 100%;
    overflow-x: hidden !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch;
  }

  body { touch-action: pan-y; }

  .app-shell {
    display: block !important;
    height: auto !important;
    min-height: 100dvh;
    overflow: visible !important;
  }

  .sidebar {
    position: sticky;
    top: 0;
    z-index: 40;
    height: auto !important;
    max-height: none !important;
    padding: 8px 10px 9px !important;
    gap: 7px !important;
    overflow: visible !important;
    box-shadow: 0 12px 28px rgba(17,24,39,.18) !important;
  }

  .brand-block {
    padding: 5px 8px !important;
    border-radius: 14px !important;
  }

  .brand-image {
    height: 38px !important;
    max-width: 190px;
    margin: 0 auto;
  }

  .steps {
    display: flex !important;
    grid-template-columns: none !important;
    gap: 7px !important;
    overflow-x: auto !important;
    overflow-y: hidden !important;
    padding: 0 1px 3px !important;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .steps::-webkit-scrollbar { display: none; }

  .step {
    flex: 0 0 auto;
    width: auto !important;
    min-width: max-content;
    grid-template-columns: 25px max-content !important;
    gap: 7px !important;
    padding: 8px 10px !important;
    border-radius: 999px !important;
    font-size: 12px !important;
    line-height: 1.1;
    white-space: nowrap;
    scroll-snap-align: start;
  }

  .step .nav-icon {
    width: 24px !important;
    height: 24px !important;
    border-radius: 999px !important;
  }

  .step .nav-icon svg {
    width: 16px !important;
    height: 16px !important;
  }

  .workspace {
    height: auto !important;
    min-height: 0 !important;
    overflow: visible !important;
    padding: 12px 10px 82px !important;
  }

  .topbar {
    margin-bottom: 10px !important;
    gap: 10px !important;
  }

  .top-actions {
    justify-content: space-between;
    width: 100%;
  }

  h1 { font-size: 25px !important; }
  #stepCaption { font-size: 12px !important; }

  .content-grid,
  .content-grid.bc-layout,
  .content-grid.about-layout,
  .content-grid.settings-layout {
    display: block !important;
    height: auto !important;
    overflow: visible !important;
  }

  .panel {
    border-radius: 18px !important;
    box-shadow: 0 12px 30px rgba(52,64,84,.10) !important;
  }

  .controls-panel,
  .content-grid.bc-layout .controls-panel {
    padding: 12px !important;
    overflow: visible !important;
  }

  .visual-panel {
    display: grid !important;
    min-height: 0 !important;
    margin-top: 12px;
    padding: 12px !important;
    overflow: visible !important;
    grid-template-rows: auto auto auto !important;
  }

  .content-grid.about-layout .visual-panel { display: none !important; }

  .visual-header { margin-bottom: 10px !important; }

  .canvas-shell {
    height: clamp(220px, 64vw, 340px) !important;
    min-height: 220px !important;
    overflow: hidden !important;
    touch-action: pan-y;
  }

  #mainCanvas {
    height: 100% !important;
    min-height: 220px !important;
    touch-action: pan-y;
  }

  .plot-row {
    display: grid !important;
    grid-template-columns: 1fr !important;
    min-height: 0 !important;
    gap: 10px !important;
  }

  .small-plot canvas { height: 150px !important; }

  .grid-2,
  .grid-3,
  .bc-editor-grid,
  .content-grid.bc-layout .bc-editor-grid,
  .export-grid,
  .check-grid,
  .kpi-grid,
  .action-grid,
  .action-grid.three {
    grid-template-columns: 1fr !important;
  }

  .bc-tabs,
  .post-tabs,
  .content-grid.bc-layout .bc-tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 8px !important;
  }

  .bc-card,
  .post-card,
  .content-grid.bc-layout .bc-card {
    min-height: 76px !important;
    padding: 9px 8px !important;
  }

  .about-card { grid-template-columns: 1fr !important; }

  .modal-card {
    max-height: calc(100dvh - 28px);
    overflow: auto;
    padding: 18px !important;
  }

  #modalResidualCanvas { height: 160px !important; }
}

/* Professional interface extensions */
.bc-editor-grid.three-column { grid-template-columns: repeat(3, minmax(0, 1fr)); align-items:start; }
.bc-editor-grid.three-column .group { min-width:0; }
@media (max-width: 1320px) { .bc-editor-grid.three-column { grid-template-columns: 1fr 1fr; } .bc-editor-grid.three-column .group:last-child { grid-column: 1 / -1; } }
@media (max-width: 820px) { .bc-editor-grid.three-column { grid-template-columns: 1fr; } .bc-editor-grid.three-column .group:last-child { grid-column:auto; } }

/* Professional interface extensions */
.app-shell {
  grid-template-columns: 250px 350px minmax(0, 1fr);
  transition: grid-template-columns .24s ease;
}
.app-shell.ai-collapsed { grid-template-columns: 250px 0 minmax(0, 1fr); }
.app-shell.ai-collapsed .ai-generator-panel { opacity:0; transform:translateX(-18px); pointer-events:none; padding-left:0; padding-right:0; border-right:0; }
.ai-generator-panel {
  min-width:0;
  height:100vh;
  padding:16px;
  display:flex;
  flex-direction:column;
  gap:12px;
  overflow-y:auto;
  overscroll-behavior:contain;
  color:var(--ink);
  background:color-mix(in srgb, var(--panel-solid) 92%, var(--bg1));
  border-right:1px solid var(--line);
  box-shadow:14px 0 38px rgba(16,35,63,.09);
  transition:opacity .2s ease, transform .24s ease, padding .24s ease;
  z-index:18;
}
[data-theme="dark"] .ai-generator-panel { background:linear-gradient(180deg,#071426,#081a2d); }
.ai-generator-header { display:flex; gap:10px; align-items:flex-start; }
.ai-generator-header > div { min-width:0; flex:1; }
.ai-generator-header .eyebrow { display:block; color:var(--accent); font-size:10px; font-weight:950; text-transform:uppercase; letter-spacing:.13em; }
.ai-generator-header h2 { margin:4px 0 5px; font-size:23px; letter-spacing:-.04em; }
.ai-generator-header p { margin:0; color:var(--muted); font-size:12px; line-height:1.42; }
.ai-collapse { flex:0 0 auto; width:32px; height:32px; border:1px solid var(--line); border-radius:11px; background:var(--panel-solid); color:var(--ink); cursor:pointer; font-size:24px; line-height:1; }
.ai-provider-status { display:flex; align-items:center; gap:8px; padding:9px 10px; border:1px solid var(--line); border-radius:13px; background:color-mix(in srgb,var(--accent2) 7%,transparent); font-size:11px; color:var(--muted); }
.ai-provider-status span { width:9px; height:9px; border-radius:50%; background:var(--warn); box-shadow:0 0 0 4px color-mix(in srgb,var(--warn) 15%,transparent); }
.ai-provider-status.connected span { background:var(--accent3); box-shadow:0 0 0 4px color-mix(in srgb,var(--accent3) 15%,transparent); }
.ai-provider-status b { color:var(--ink); }
.ai-prompt-label { font-size:11px; font-weight:950; color:var(--accent); text-transform:uppercase; letter-spacing:.08em; }
#aiCasePrompt { min-height:124px; resize:vertical; line-height:1.42; }
.ai-example-row { display:flex; gap:6px; flex-wrap:wrap; }
.ai-example-row button { border:1px solid var(--line); border-radius:999px; padding:6px 8px; background:transparent; color:var(--muted); font-size:10px; font-weight:850; cursor:pointer; }
.ai-example-row button:hover { color:var(--accent); border-color:color-mix(in srgb,var(--accent) 35%,var(--line)); }
.ai-generator-actions { display:grid; grid-template-columns:1fr 1.18fr; gap:8px; }
.ai-generator-actions .btn { padding:10px 9px; }
.ai-plan-card { border:1px solid var(--line); border-radius:18px; padding:11px; background:color-mix(in srgb,var(--panel-solid) 82%,transparent); }
.ai-plan-empty { color:var(--muted); font-size:12px; line-height:1.42; text-align:center; padding:14px 6px; }
.ai-plan-head { display:flex; justify-content:space-between; gap:8px; align-items:start; margin-bottom:10px; }
.ai-plan-head b { font-size:13px; }
.ai-plan-head small { display:block; margin-top:3px; color:var(--muted); line-height:1.35; }
.ai-source-badge { flex:0 0 auto; max-width:120px; padding:5px 7px; border-radius:999px; background:color-mix(in srgb,var(--accent2) 12%,transparent); color:var(--accent); font-size:9px; font-weight:900; text-align:center; }
.ai-workflow { display:grid; gap:6px; }
.ai-workflow-step { display:grid; grid-template-columns:22px 1fr; gap:7px; align-items:start; padding:7px; border-radius:12px; background:color-mix(in srgb,var(--accent) 4%,transparent); }
.ai-workflow-step .status { width:20px; height:20px; border-radius:50%; display:grid; place-items:center; font-size:10px; font-weight:950; color:#fff; background:#94a3b8; }
.ai-workflow-step.complete .status { background:var(--accent3); }
.ai-workflow-step.running .status { background:var(--accent); animation:pulseAI 1.1s infinite; }
.ai-workflow-step.failed .status { background:var(--danger); }
.ai-workflow-step b { display:block; font-size:11px; }
.ai-workflow-step small { display:block; color:var(--muted); font-size:10px; line-height:1.32; margin-top:1px; }
@keyframes pulseAI { 50% { box-shadow:0 0 0 5px color-mix(in srgb,var(--accent) 15%,transparent); } }
.ai-assumptions { margin:9px 0 0; padding:9px 10px; border-radius:12px; background:color-mix(in srgb,var(--warn) 8%,transparent); color:var(--muted); font-size:10px; line-height:1.4; }
.ai-assistant-dock { margin-top:auto; border:1px solid var(--line); border-radius:18px; overflow:hidden; background:color-mix(in srgb,var(--panel-solid) 88%,transparent); }
.ai-assistant-title { display:flex; align-items:center; justify-content:space-between; gap:8px; padding:10px; border-bottom:1px solid var(--line); }
.ai-assistant-title > div { display:flex; gap:8px; align-items:center; min-width:0; }
.ai-assistant-title b { display:block; font-size:11px; }
.ai-assistant-title small { display:block; color:var(--muted); font-size:9px; margin-top:2px; }
.ai-assistant-title button { border:0; background:transparent; color:var(--muted); font-size:9px; font-weight:900; cursor:pointer; }
.ai-orb { width:30px; height:30px; border-radius:11px; display:grid; place-items:center; background:linear-gradient(135deg,var(--accent),var(--accent2)); color:#fff; font-size:10px; font-weight:950; box-shadow:0 8px 18px color-mix(in srgb,var(--accent) 22%,transparent); }
.ai-chat { min-height:105px; max-height:190px; overflow:auto; padding:10px; display:flex; flex-direction:column; gap:8px; }
.ai-message { max-width:94%; border-radius:13px; padding:8px 9px; white-space:pre-wrap; font-size:10.5px; line-height:1.42; }
.ai-message.assistant { align-self:flex-start; background:color-mix(in srgb,var(--accent2) 9%,transparent); border:1px solid color-mix(in srgb,var(--accent2) 18%,var(--line)); }
.ai-message.user { align-self:flex-end; background:linear-gradient(135deg,var(--accent),var(--accent2)); color:#fff; }
.ai-message.system { align-self:center; background:transparent; color:var(--muted); font-size:9px; text-align:center; }
.ai-chat-form { display:grid; grid-template-columns:1fr 38px; gap:7px; padding:9px; border-top:1px solid var(--line); }
.ai-chat-form textarea { min-height:48px; resize:none; font-size:10.5px; }
.ai-chat-form button { border:0; border-radius:12px; color:#fff; background:linear-gradient(135deg,var(--accent),var(--accent2)); cursor:pointer; font-weight:950; }
.ai-drawer-toggle, .ai-top-toggle { display:none; }

/* Zone-refinement editor and mesh adviser */
.zone-toolbar { display:flex; flex-wrap:wrap; gap:7px; margin:10px 0; }
.zone-toolbar button { border:1px solid var(--line); border-radius:11px; background:var(--panel-solid); color:var(--ink); padding:7px 9px; font-size:11px; font-weight:850; cursor:pointer; }
.zone-toolbar button:hover { border-color:var(--accent); color:var(--accent); }
.mesh-zone-list { display:grid; gap:8px; }
.mesh-zone-row { display:grid; grid-template-columns:minmax(90px,1.3fr) 78px 68px 68px 80px 30px; gap:6px; align-items:end; padding:9px; border:1px solid var(--line); border-radius:14px; background:color-mix(in srgb,var(--panel-solid) 72%,transparent); }
.mesh-zone-row label { display:grid; gap:4px; color:var(--muted); font-size:9px; font-weight:850; }
.mesh-zone-row input, .mesh-zone-row select { min-width:0; padding:7px 6px; font-size:11px; }
.mesh-zone-remove { width:30px; height:32px; border:1px solid color-mix(in srgb,var(--danger) 25%,var(--line)); border-radius:9px; background:transparent; color:var(--danger); cursor:pointer; font-weight:950; }
.mesh-ai-card { border:1px solid color-mix(in srgb,var(--accent) 24%,var(--line)); border-radius:17px; padding:12px; margin-top:12px; background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 8%,transparent),color-mix(in srgb,var(--accent2) 6%,transparent)); }
.mesh-ai-head { display:flex; gap:9px; align-items:center; margin-bottom:8px; }
.mesh-ai-head b { display:block; font-size:13px; }
.mesh-ai-head small { display:block; color:var(--muted); font-size:10px; margin-top:2px; }
.mesh-ai-text { white-space:pre-line; color:var(--muted); font-size:11px; line-height:1.45; margin:8px 0; }
.mesh-ai-actions { display:grid; grid-template-columns:1fr 1fr; gap:8px; }
.mesh-quality-good { color:#059669 !important; }
.mesh-quality-warn { color:#d97706 !important; }

@media (max-width: 1650px) {
  .app-shell { grid-template-columns:230px 320px minmax(0,1fr); }
  .app-shell.ai-collapsed { grid-template-columns:230px 0 minmax(0,1fr); }
  .sidebar { padding-left:12px; padding-right:12px; }
  .content-grid { grid-template-columns:minmax(300px,370px) minmax(0,1fr); }
}
@media (max-width: 1380px) {
  body { overflow:hidden; }
  .app-shell, .app-shell.ai-collapsed { grid-template-columns:230px minmax(0,1fr) !important; height:100vh; overflow:hidden; }
  .ai-generator-panel {
    position:fixed; left:230px; top:0; bottom:0; width:min(360px,calc(100vw - 230px));
    transform:translateX(-110%); opacity:0; pointer-events:none; box-shadow:24px 0 70px rgba(0,0,0,.24);
  }
  .app-shell.ai-open .ai-generator-panel { transform:translateX(0); opacity:1; pointer-events:auto; }
  .ai-collapse { display:none; }
  .ai-top-toggle { display:inline-grid; place-items:center; height:42px; min-width:44px; padding:0 11px; border:1px solid var(--line); border-radius:999px; background:var(--panel-solid); color:var(--accent); font-size:12px; font-weight:950; cursor:pointer; }
  .workspace { grid-column:2; }
}
@media (max-width: 1180px) {
  .app-shell, .app-shell.ai-collapsed { display:grid !important; grid-template-columns:1fr !important; height:auto !important; min-height:100vh; overflow:visible !important; }
  .workspace { grid-column:auto; }
  .ai-generator-panel { left:0; width:min(390px,94vw); z-index:80; }
  .ai-drawer-toggle { display:block; position:fixed; left:12px; bottom:16px; z-index:69; border:0; border-radius:999px; padding:11px 14px; background:linear-gradient(135deg,var(--accent),var(--accent2)); color:#fff; font-weight:950; box-shadow:0 15px 35px rgba(2,44,80,.28); }
}
@media (max-width: 760px) {
  .ai-generator-panel { width:100vw; max-width:none; padding:14px; }
  .ai-chat { max-height:150px; }
  .mesh-zone-row { grid-template-columns:1fr 70px 1fr 1fr; }
  .mesh-zone-row label:first-child { grid-column:1 / 3; }
  .mesh-zone-remove { grid-column:4; grid-row:1; justify-self:end; }
  .mesh-ai-actions, .ai-generator-actions { grid-template-columns:1fr; }
  .ai-drawer-toggle { bottom:72px; }
}


/* Professional interface extensions */
.boundary-layer-editor { display:grid; gap:9px; margin:10px 0 12px; padding:11px; border:1px solid color-mix(in srgb,var(--accent) 20%,var(--line)); border-radius:14px; background:color-mix(in srgb,var(--accent) 4%,var(--panel-solid)); }
.ai-action-message { display:grid !important; gap:8px; border-style:dashed !important; }
.ai-inline-action { width:100%; border:0; border-radius:10px; padding:8px 10px; background:linear-gradient(135deg,var(--accent),var(--accent2)); color:white; font:inherit; font-size:11px; font-weight:850; cursor:pointer; }
.ai-inline-action.secondary { background:transparent; color:var(--muted); border:1px solid var(--line); }
.ai-inline-action:disabled { opacity:.7; cursor:default; }

/* Professional interface extensions */
@media (min-width: 1381px) {
  .app-shell { grid-template-columns: 390px minmax(0,1fr) !important; }
  .app-shell.ai-collapsed { grid-template-columns: 250px minmax(0,1fr) !important; }
  .sidebar { overflow-y:auto !important; align-items:stretch; }
  .app-shell.ai-collapsed .ai-generator-panel { display:none !important; }
  .ai-generator-panel {
    position:static !important; inset:auto !important; width:auto !important; height:auto !important;
    min-height:0 !important; max-height:none !important; flex:0 0 auto;
    padding:14px !important; border:1px solid rgba(255,255,255,.18) !important; border-radius:22px;
    background:rgba(255,255,255,.96) !important; box-shadow:0 18px 38px rgba(0,0,0,.20) !important;
    opacity:1 !important; transform:none !important; pointer-events:auto !important;
  }
  [data-theme="dark"] .ai-generator-panel { background:linear-gradient(180deg,#071426,#081a2d) !important; }
  .steps { overflow:visible !important; flex:0 0 auto; }
  .workspace { grid-column:2 !important; }
  .ai-top-toggle { display:inline-grid !important; place-items:center; height:42px; min-width:44px; padding:0 11px; border:1px solid var(--line); border-radius:999px; background:var(--panel-solid); color:var(--accent); font-size:12px; font-weight:950; cursor:pointer; }
}
.ai-generator-step { border-color:rgba(255,255,255,.18); background:rgba(255,255,255,.08); color:#fff; }
.ai-generator-step .nav-icon { background:linear-gradient(135deg,#ffffff,#dff7ff); color:#075985; }
.ai-clarification-card { border:1px solid color-mix(in srgb,var(--warn) 42%,var(--line)); border-radius:18px; padding:12px; background:linear-gradient(135deg,color-mix(in srgb,var(--warn) 10%,var(--panel-solid)),color-mix(in srgb,var(--accent2) 5%,var(--panel-solid))); }
.ai-clarification-card[hidden] { display:none !important; }
.ai-clarification-head { display:flex; gap:9px; align-items:center; }
.ai-clarification-head b { display:block; font-size:12px; }
.ai-clarification-head small { display:block; color:var(--muted); font-size:9px; margin-top:2px; }
.ai-clarification-card p { margin:10px 0 4px; font-size:12px; font-weight:850; line-height:1.4; }
.ai-clarification-help { display:block; color:var(--muted); font-size:10px; line-height:1.4; }
.ai-clarification-suggestions { display:flex; flex-wrap:wrap; gap:6px; margin:9px 0; }
.ai-clarification-suggestions button { border:1px solid var(--line); border-radius:999px; padding:6px 8px; background:var(--panel-solid); color:var(--accent); font-size:9px; font-weight:900; cursor:pointer; }
#aiClarificationForm { display:grid; gap:7px; margin-top:9px; }
#aiClarificationForm textarea { min-height:54px; resize:vertical; font-size:10.5px; }
#aiClarificationForm .btn { padding:8px 10px; }
.ai-understood, .ai-locked { display:grid; gap:4px; margin:8px 0; padding:9px; border-radius:12px; background:color-mix(in srgb,var(--accent3) 8%,transparent); border:1px solid color-mix(in srgb,var(--accent3) 22%,var(--line)); }
.ai-locked { background:color-mix(in srgb,var(--accent) 6%,transparent); border-color:color-mix(in srgb,var(--accent) 18%,var(--line)); }
.ai-understood b, .ai-locked b { font-size:10px; margin-bottom:2px; }
.ai-understood span, .ai-locked span { color:var(--muted); font-size:9.5px; line-height:1.35; overflow-wrap:anywhere; }
.ai-message.system { max-width:100%; padding:7px 8px; border:1px dashed var(--line); border-radius:10px; }
@media (max-width: 1380px) {
  .ai-generator-panel { overflow-y:auto; }
  .ai-generator-step { display:grid; }
}

/* Professional interface extensions */
.content-grid.ai-layout { grid-template-columns:minmax(285px,340px) minmax(0,1fr); }
.content-grid.ai-layout .visual-panel { grid-template-rows:auto minmax(0,1fr); padding:16px; }
.content-grid.ai-layout .controls-panel { overflow-y:auto; }
.content-grid.ai-layout #plotRow { display:none !important; }
.ai-review-workspace {
  min-height:0;
  height:100%;
  overflow:auto;
  padding:2px 4px 86px 2px;
  scrollbar-width:thin;
}
.ai-review-workspace[hidden] { display:none !important; }
.ai-review-empty {
  min-height:100%;
  display:grid;
  align-content:center;
  justify-items:center;
  text-align:center;
  padding:48px;
  border:1px dashed color-mix(in srgb,var(--accent) 32%,var(--line));
  border-radius:24px;
  background:
    radial-gradient(circle at 50% 5%,color-mix(in srgb,var(--accent2) 13%,transparent),transparent 35%),
    color-mix(in srgb,var(--panel-solid) 76%,transparent);
}
.ai-review-hero { width:76px; height:76px; display:grid; place-items:center; border-radius:27px; color:white; font-size:24px; font-weight:950; background:linear-gradient(135deg,var(--accent),var(--accent2)); box-shadow:0 22px 48px color-mix(in srgb,var(--accent) 28%,transparent); }
.ai-review-empty h2 { margin:20px 0 8px; font-size:28px; letter-spacing:-.04em; }
.ai-review-empty p { max-width:680px; margin:0; color:var(--muted); line-height:1.6; }
.ai-review-empty > div { display:flex; flex-wrap:wrap; justify-content:center; gap:8px; margin-top:22px; }
.ai-review-empty > div span { padding:8px 11px; border:1px solid var(--line); border-radius:999px; background:var(--panel-solid); color:var(--muted); font-size:11px; font-weight:850; }
.ai-review-top { display:flex; align-items:flex-start; justify-content:space-between; gap:18px; padding:18px 18px 16px; border:1px solid var(--line); border-radius:22px; background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 8%,var(--panel-solid)),color-mix(in srgb,var(--accent2) 6%,var(--panel-solid))); box-shadow:0 14px 34px rgba(2,44,80,.07); }
.ai-review-top .eyebrow { color:var(--accent); font-size:10px; font-weight:950; letter-spacing:.12em; text-transform:uppercase; }
.ai-review-top h2 { margin:5px 0 5px; font-size:23px; letter-spacing:-.04em; }
.ai-review-top p { margin:0; color:var(--muted); font-size:12px; line-height:1.45; }
.ai-review-kpis { flex:0 0 auto; display:grid; grid-template-columns:repeat(3,minmax(84px,1fr)); gap:8px; }
.ai-review-kpis span { min-width:86px; padding:10px; border:1px solid var(--line); border-radius:14px; background:color-mix(in srgb,var(--panel-solid) 82%,transparent); color:var(--muted); font-size:9px; font-weight:850; text-align:center; }
.ai-review-kpis b { display:block; margin-bottom:2px; color:var(--ink); font-size:16px; }
.ai-proposal-notice { display:flex; justify-content:space-between; align-items:center; gap:14px; margin:12px 0; padding:12px 14px; border:1px solid color-mix(in srgb,var(--warn) 36%,var(--line)); border-radius:16px; background:color-mix(in srgb,var(--warn) 8%,var(--panel-solid)); }
.ai-proposal-notice b { display:block; font-size:12px; }
.ai-proposal-notice p { margin:3px 0 0; color:var(--muted); font-size:10.5px; line-height:1.4; }
.ai-proposal-notice button { flex:0 0 auto; border:1px solid color-mix(in srgb,var(--warn) 36%,var(--line)); border-radius:10px; padding:8px 10px; background:var(--panel-solid); color:#b45309; font-size:10px; font-weight:900; cursor:pointer; }
.ai-review-layout { display:grid; grid-template-columns:minmax(0,1.55fr) minmax(260px,.72fr); gap:14px; align-items:start; }
.ai-review-parameters { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:12px; }
.ai-review-section { min-width:0; border:1px solid var(--line); border-radius:19px; background:color-mix(in srgb,var(--panel-solid) 88%,transparent); overflow:hidden; box-shadow:0 10px 28px rgba(2,44,80,.05); }
.ai-review-section > header { display:flex; gap:9px; align-items:center; padding:12px 13px; border-bottom:1px solid var(--line); background:color-mix(in srgb,var(--accent) 4%,transparent); }
.ai-review-section > header > span { width:31px; height:31px; display:grid; place-items:center; border-radius:11px; background:linear-gradient(135deg,var(--accent),var(--accent2)); color:white; font-size:11px; font-weight:950; }
.ai-review-section h3 { margin:0; font-size:13px; }
.ai-review-section header small { display:block; margin-top:2px; color:var(--muted); font-size:9px; }
.ai-parameter-list { display:grid; }
.ai-parameter-row { display:grid; grid-template-columns:minmax(0,1fr) minmax(112px,145px); gap:10px; align-items:center; padding:11px 12px; border-bottom:1px solid color-mix(in srgb,var(--line) 70%,transparent); }
.ai-parameter-row:last-child { border-bottom:0; }
.ai-parameter-copy > div { display:flex; align-items:baseline; justify-content:space-between; gap:8px; }
.ai-parameter-copy b { font-size:11px; }
.ai-parameter-copy small { color:var(--muted); font-size:8.5px; }
.ai-parameter-copy p { margin:4px 0 0; color:var(--muted); font-size:8.8px; line-height:1.35; }
.ai-origin { display:inline-flex; margin-top:5px; padding:3px 6px; border-radius:999px; font-size:7.8px; font-weight:950; letter-spacing:.02em; }
.ai-origin.specified { color:#047857; background:rgba(16,185,129,.11); }
.ai-origin.proposed { color:#b45309; background:rgba(245,158,11,.13); }
.ai-origin.derived { color:#0369a1; background:rgba(14,165,233,.11); }
.ai-origin.edited { color:#6d28d9; background:rgba(139,92,246,.12); }
.ai-parameter-control input,
.ai-parameter-control select { width:100%; min-width:0; padding:8px 9px; border-radius:10px; font-size:10.5px; font-weight:800; background:var(--panel-solid); }
.ai-parameter-control input:disabled,
.ai-parameter-control select:disabled { opacity:.55; }
.ai-review-switch { display:flex; justify-content:flex-end; }
.ai-review-switch input { position:absolute; opacity:0; pointer-events:none; }
.ai-review-switch span { width:42px; height:24px; border-radius:999px; background:#cbd5e1; position:relative; cursor:pointer; transition:.18s; }
.ai-review-switch span::after { content:''; position:absolute; width:18px; height:18px; left:3px; top:3px; border-radius:50%; background:white; box-shadow:0 3px 8px rgba(0,0,0,.18); transition:.18s; }
.ai-review-switch input:checked + span { background:linear-gradient(135deg,var(--accent),var(--accent2)); }
.ai-review-switch input:checked + span::after { transform:translateX(18px); }
.ai-review-sidebar { display:grid; gap:12px; position:sticky; top:0; }
.ai-review-sidebar > section { border:1px solid var(--line); border-radius:19px; padding:12px; background:color-mix(in srgb,var(--panel-solid) 90%,transparent); }
.ai-review-sidebar h3 { margin:0 0 9px; font-size:12px; }
.ai-review-steps { display:grid; gap:6px; }
.ai-review-step { display:grid; grid-template-columns:24px minmax(0,1fr); gap:8px; padding:8px; border-radius:12px; background:color-mix(in srgb,var(--accent) 4%,transparent); }
.ai-review-step > span { width:22px; height:22px; display:grid; place-items:center; border-radius:50%; background:#94a3b8; color:white; font-size:9px; font-weight:950; }
.ai-review-step.complete > span { background:var(--accent3); }
.ai-review-step.running > span { background:var(--accent); animation:pulseAI 1.1s infinite; }
.ai-review-step.failed > span { background:var(--danger); }
.ai-review-step b { display:block; font-size:9.8px; }
.ai-review-step small { display:block; margin-top:2px; color:var(--muted); font-size:8.3px; line-height:1.3; }
.ai-rationale-list { display:grid; gap:7px; max-height:320px; overflow:auto; }
.ai-rationale-list article { padding:8px; border:1px solid color-mix(in srgb,var(--warn) 20%,var(--line)); border-radius:11px; background:color-mix(in srgb,var(--warn) 5%,transparent); }
.ai-rationale-list article span { color:#b45309; font-size:7.5px; font-weight:950; text-transform:uppercase; letter-spacing:.08em; }
.ai-rationale-list article b { display:block; margin:3px 0; font-size:9.5px; }
.ai-rationale-list article p { margin:0; color:var(--muted); font-size:8.4px; line-height:1.35; }
.ai-review-actions { position:sticky; bottom:-1px; z-index:5; display:grid; grid-template-columns:1fr 1fr 1.25fr; gap:9px; margin-top:14px; padding:12px; border:1px solid var(--line); border-radius:17px; background:color-mix(in srgb,var(--panel-solid) 93%,transparent); box-shadow:0 -14px 30px rgba(2,44,80,.09); backdrop-filter:blur(12px); }
.ai-workflow-policy { display:grid; grid-template-columns:1fr 1fr; gap:7px; margin-top:10px; }
.ai-workflow-policy span { display:flex; align-items:center; gap:7px; padding:8px; border:1px solid var(--line); border-radius:11px; color:var(--muted); font-size:9.5px; font-weight:800; }
.ai-workflow-policy b { width:20px; height:20px; display:grid; place-items:center; border-radius:7px; background:color-mix(in srgb,var(--accent) 12%,transparent); color:var(--accent); font-size:9px; }

@media (max-width:1500px){
  .content-grid.ai-layout { grid-template-columns:minmax(270px,315px) minmax(0,1fr); }
  .ai-review-layout { grid-template-columns:minmax(0,1fr) 260px; }
  .ai-review-parameters { grid-template-columns:1fr; }
}
@media (max-width:1100px){
  .content-grid.ai-layout { grid-template-columns:1fr; overflow:auto; }
  .content-grid.ai-layout .visual-panel { min-height:900px; }
  .ai-review-layout { grid-template-columns:1fr; }
  .ai-review-sidebar { position:static; grid-template-columns:1fr 1fr; }
}
@media (max-width:760px){
  .ai-review-top { display:grid; }
  .ai-review-kpis { width:100%; }
  .ai-review-parameters,.ai-review-sidebar { grid-template-columns:1fr; }
  .ai-parameter-row { grid-template-columns:1fr; }
  .ai-parameter-control { max-width:none; }
  .ai-review-actions { grid-template-columns:1fr; position:static; }
  .ai-proposal-notice { align-items:flex-start; }
}

/* Professional interface extensions */
.ai-generator-actions.single-action { grid-template-columns:1fr; }
.ai-assistant-collapsible { display:block; padding:0; overflow:hidden; }
.ai-assistant-collapsible > summary { list-style:none; display:flex; align-items:center; gap:9px; padding:11px 12px; cursor:pointer; border-radius:14px; background:color-mix(in srgb,var(--accent) 5%,transparent); }
.ai-assistant-collapsible > summary::-webkit-details-marker { display:none; }
.ai-assistant-collapsible > summary > span:nth-child(2) { min-width:0; }
.ai-assistant-collapsible > summary b,.ai-assistant-collapsible > summary small { display:block; }
.ai-assistant-collapsible > summary b { font-size:11px; }
.ai-assistant-collapsible > summary small { margin-top:1px; color:var(--muted); font-size:9px; }
.ai-assistant-body { display:block; padding-top:10px; }
.ai-plan-compact { display:flex; align-items:center; justify-content:space-between; gap:10px; }
.ai-plan-compact > div { display:flex; align-items:center; gap:9px; min-width:0; }
.ai-plan-compact b,.ai-plan-compact small { display:block; }
.ai-plan-compact b { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; font-size:10.5px; }
.ai-plan-compact small { margin-top:2px; color:var(--muted); font-size:9px; }
.ai-plan-compact button { flex:0 0 auto; border:0; background:transparent; color:var(--accent); font-weight:900; cursor:pointer; }

.ai-review-workspace { padding:0; background:transparent; }
.ai-review-empty.compact { min-height:480px; }
.ai-compact-review { width:min(980px,100%); margin:0 auto; display:grid; gap:14px; padding:4px; }
.ai-compact-head { display:flex; align-items:flex-start; justify-content:space-between; gap:18px; padding:20px 22px; border:1px solid var(--line); border-radius:22px; background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 8%,var(--panel-solid)),color-mix(in srgb,var(--accent2) 5%,var(--panel-solid))); box-shadow:0 14px 36px rgba(2,44,80,.07); }
.ai-compact-head .eyebrow { display:block; color:var(--accent); font-size:10px; font-weight:950; letter-spacing:.12em; text-transform:uppercase; }
.ai-compact-head h2 { margin:5px 0 4px; font-size:26px; letter-spacing:-.04em; }
.ai-compact-head p { margin:0; color:var(--muted); font-size:11px; line-height:1.4; }
.ai-compact-status { min-width:94px; padding:10px 12px; border:1px solid var(--line); border-radius:15px; background:color-mix(in srgb,var(--panel-solid) 86%,transparent); text-align:center; }
.ai-compact-status b,.ai-compact-status span { display:block; }
.ai-compact-status b { color:var(--accent); font-size:24px; line-height:1; }
.ai-compact-status span { margin-top:4px; color:var(--muted); font-size:8.5px; font-weight:850; text-transform:uppercase; letter-spacing:.08em; }
.ai-compact-chips { display:flex; flex-wrap:wrap; gap:7px; }
.ai-compact-chips span { padding:7px 10px; border:1px solid var(--line); border-radius:999px; background:var(--panel-solid); color:var(--muted); font-size:9.5px; font-weight:900; text-transform:capitalize; }
.ai-compact-section { border:1px solid var(--line); border-radius:19px; background:color-mix(in srgb,var(--panel-solid) 91%,transparent); overflow:hidden; box-shadow:0 9px 24px rgba(2,44,80,.045); }
.ai-compact-section.proposed { border-color:color-mix(in srgb,var(--accent) 27%,var(--line)); }
.ai-compact-section-title { display:flex; align-items:center; justify-content:space-between; gap:12px; padding:12px 14px; border-bottom:1px solid var(--line); background:color-mix(in srgb,var(--accent) 4%,transparent); }
.ai-compact-section-title > div { display:flex; align-items:center; gap:9px; }
.ai-compact-section-title > div > span { width:27px; height:27px; display:grid; place-items:center; border-radius:9px; background:linear-gradient(135deg,var(--accent),var(--accent2)); color:#fff; font-size:9px; font-weight:950; }
.ai-compact-section-title h3 { margin:0; font-size:12px; }
.ai-compact-section-title > small { color:var(--muted); font-size:8.8px; }
.ai-compact-list { display:grid; }
.ai-compact-row { display:grid; grid-template-columns:minmax(0,1fr) minmax(170px,240px); align-items:center; gap:18px; padding:11px 14px; border-bottom:1px solid color-mix(in srgb,var(--line) 72%,transparent); }
.ai-compact-row:last-child { border-bottom:0; }
.ai-compact-label { min-width:0; display:grid; grid-template-columns:auto auto 1fr; align-items:center; gap:7px; }
.ai-compact-label b { font-size:10.5px; }
.ai-compact-label small { min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; color:var(--muted); font-size:8.7px; }
.ai-compact-control input,.ai-compact-control select { width:100%; min-width:0; padding:8px 9px; border:1px solid var(--line); border-radius:10px; background:var(--panel-solid); color:var(--ink); font-size:10.5px; font-weight:850; }
.ai-compact-number { display:grid; grid-template-columns:minmax(0,1fr) auto; align-items:center; gap:7px; }
.ai-compact-number small { color:var(--muted); font-size:8.7px; white-space:nowrap; }
.ai-compact-switch { display:flex; align-items:center; justify-content:flex-end; gap:8px; }
.ai-compact-switch input { position:absolute; opacity:0; pointer-events:none; }
.ai-compact-switch span { width:39px; height:22px; border-radius:999px; background:#cbd5e1; position:relative; cursor:pointer; transition:.18s; }
.ai-compact-switch span::after { content:''; position:absolute; width:16px; height:16px; left:3px; top:3px; border-radius:50%; background:#fff; box-shadow:0 2px 7px rgba(0,0,0,.18); transition:.18s; }
.ai-compact-switch input:checked + span { background:linear-gradient(135deg,var(--accent),var(--accent2)); }
.ai-compact-switch input:checked + span::after { transform:translateX(17px); }
.ai-compact-switch b { min-width:48px; color:var(--muted); font-size:9px; }
.ai-compact-none { padding:16px; color:var(--muted); font-size:10px; text-align:center; }
.ai-compact-none.success { color:var(--accent3); font-weight:850; }
.ai-compact-derived { display:grid; grid-template-columns:1fr 1fr; gap:9px; }
.ai-compact-derived > div { min-width:0; padding:11px 13px; border:1px solid var(--line); border-radius:15px; background:color-mix(in srgb,var(--panel-solid) 88%,transparent); }
.ai-compact-derived b,.ai-compact-derived span { display:block; }
.ai-compact-derived b { margin-bottom:4px; color:var(--accent); font-size:9px; text-transform:uppercase; letter-spacing:.08em; }
.ai-compact-derived span { color:var(--muted); font-size:9.2px; line-height:1.42; }
.ai-compact-execution { border:1px solid color-mix(in srgb,var(--accent) 28%,var(--line)); border-radius:19px; overflow:hidden; background:color-mix(in srgb,var(--accent) 3%,var(--panel-solid)); }
.ai-compact-steps { display:grid; grid-template-columns:1fr 1fr; gap:7px; padding:10px; }
.ai-compact-step { display:grid; grid-template-columns:24px 1fr; align-items:start; gap:8px; padding:8px; border-radius:12px; background:var(--panel-solid); }
.ai-compact-step > span { width:22px; height:22px; display:grid; place-items:center; border-radius:50%; background:#94a3b8; color:#fff; font-size:8.5px; font-weight:950; }
.ai-compact-step.complete > span { background:var(--accent3); }
.ai-compact-step.running > span { background:var(--accent); animation:pulseAI 1.1s infinite; }
.ai-compact-step.failed > span { background:var(--danger); }
.ai-compact-step b,.ai-compact-step small { display:block; }
.ai-compact-step b { font-size:9.5px; }
.ai-compact-step small { margin-top:2px; color:var(--muted); font-size:8.2px; line-height:1.3; }
.ai-review-actions.compact { position:sticky; bottom:-1px; grid-template-columns:minmax(180px,.72fr) minmax(250px,1fr); margin-top:0; }

@media (max-width:900px) {
  .ai-compact-head { display:grid; }
  .ai-compact-status { width:100%; }
  .ai-compact-row { grid-template-columns:1fr; gap:8px; }
  .ai-compact-label { grid-template-columns:auto auto; }
  .ai-compact-label small { grid-column:1/-1; white-space:normal; }
  .ai-compact-derived,.ai-compact-steps { grid-template-columns:1fr; }
  .ai-review-actions.compact { grid-template-columns:1fr; position:static; }
}

/* Professional interface extensions */
.content-grid.ai-layout {
  grid-template-columns: minmax(0, 1fr) !important;
}
.content-grid.ai-layout > .controls-panel {
  display: none !important;
}
.content-grid.ai-layout > .visual-panel {
  grid-column: 1 / -1;
  min-width: 0;
}

/* Professional interface extensions */
.ai-expert-check { grid-column:1 / -1; }
.ai-expert-check.ready { border-color:color-mix(in srgb,var(--accent3) 34%,var(--line)); }
.ai-expert-check.review { border-color:color-mix(in srgb,#f59e0b 42%,var(--line)); background:color-mix(in srgb,#f59e0b 5%,var(--panel-solid)); }
.ai-expert-check.blocked { border-color:color-mix(in srgb,var(--danger) 50%,var(--line)); background:color-mix(in srgb,var(--danger) 7%,var(--panel-solid)); }
.ai-expert-check.blocked > b { color:var(--danger); }
.ai-expert-details { display:grid; gap:6px; margin-top:8px; }
.ai-expert-details > span { display:grid; grid-template-columns:minmax(110px,auto) 1fr; gap:8px; padding:7px 8px; border-radius:9px; background:color-mix(in srgb,var(--panel-solid) 74%,transparent); color:var(--muted); font-size:8.8px; line-height:1.35; }
.ai-expert-details > span > b { margin:0; color:var(--ink); font-size:8.8px; letter-spacing:0; text-transform:none; }
.ai-expert-details > span.error > b { color:var(--danger); }
.ai-expert-details > span.warning > b { color:#b45309; }
.ai-review-actions .btn:disabled { cursor:not-allowed; filter:grayscale(.35); opacity:.58; box-shadow:none; }

.app-notices { position:fixed; z-index:100000; top:18px; right:18px; width:min(430px,calc(100vw - 36px)); display:grid; gap:10px; pointer-events:none; }
.app-notice { pointer-events:auto; display:grid; grid-template-columns:30px minmax(0,1fr) 26px; align-items:start; gap:10px; padding:12px 12px; border:1px solid var(--line); border-radius:15px; background:color-mix(in srgb,var(--panel-solid) 94%,transparent); color:var(--ink); box-shadow:0 18px 55px rgba(2,28,55,.2); backdrop-filter:blur(18px); transform:translateY(-8px); opacity:0; transition:opacity .18s ease,transform .18s ease; font-size:10.5px; line-height:1.45; }
.app-notice.visible { transform:translateY(0); opacity:1; }
.app-notice.leaving { transform:translateY(-6px); opacity:0; }
.app-notice-icon { width:28px; height:28px; display:grid; place-items:center; border-radius:9px; background:color-mix(in srgb,var(--accent) 12%,var(--panel-solid)); color:var(--accent); font-weight:950; }
.app-notice.error { border-color:color-mix(in srgb,var(--danger) 45%,var(--line)); }
.app-notice.error .app-notice-icon { background:color-mix(in srgb,var(--danger) 12%,var(--panel-solid)); color:var(--danger); }
.app-notice.success .app-notice-icon { background:color-mix(in srgb,var(--accent3) 12%,var(--panel-solid)); color:var(--accent3); }
.app-notice button { border:0; background:transparent; color:var(--muted); font-size:18px; line-height:1; cursor:pointer; }
@media (max-width:650px){ .app-notices{top:10px;right:10px;width:calc(100vw - 20px)} .ai-expert-details > span{grid-template-columns:1fr} }

.run-modal-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:14px}
.btn.danger{background:linear-gradient(135deg,#b42318,#d92d20);color:#fff;border-color:transparent;box-shadow:0 10px 24px rgba(180,35,24,.2)}
.btn.danger:hover{transform:translateY(-1px);box-shadow:0 13px 28px rgba(180,35,24,.28)}
.btn.danger:disabled{opacity:.62;cursor:wait;transform:none}
.ai-workflow-step.stopped .status,.ai-compact-step.stopped>span{background:#fff4e5;color:#b54708;border-color:#f7b27a}

/* ================================================================
   CFDWeb 2026 enhancement: voice AI, complete themes and mobile UX
   ================================================================ */
:root {
  --sidebar1:#05264c;
  --sidebar2:#073b70;
  --sidebar3:#062946;
}
.sidebar {
  background:
    radial-gradient(circle at 0% 0%, color-mix(in srgb,var(--accent2) 32%,transparent), transparent 18rem),
    radial-gradient(circle at 120% 35%, color-mix(in srgb,var(--accent) 23%,transparent), transparent 16rem),
    linear-gradient(180deg,var(--sidebar1) 0%,var(--sidebar2) 48%,var(--sidebar3) 100%) !important;
}
.brand-block {
  background:linear-gradient(135deg,color-mix(in srgb,var(--panel-solid) 96%,var(--accent2)),color-mix(in srgb,var(--panel-solid) 91%,var(--accent))) !important;
  border-color:color-mix(in srgb,var(--accent2) 28%,transparent) !important;
}
.step.active {
  background:linear-gradient(135deg,var(--accent) 0%,var(--accent2) 70%,var(--accent3) 100%) !important;
  box-shadow:0 14px 32px color-mix(in srgb,var(--accent) 31%,transparent) !important;
}
.step.active .nav-icon { color:var(--accent) !important; }
.ai-generator-step .nav-icon { color:var(--accent) !important; }
.scroll-fab { background:linear-gradient(135deg,var(--accent),var(--accent2)); }

[data-color-scheme="dark"] .group,
[data-color-scheme="dark"] .kpi,
[data-color-scheme="dark"] .small-plot,
[data-color-scheme="dark"] .bc-card,
[data-color-scheme="dark"] .post-card,
[data-color-scheme="dark"] .export-tile {
  background:color-mix(in srgb,var(--panel-solid) 91%,var(--ink) 9%) !important;
}
[data-color-scheme="dark"] input[type="number"],
[data-color-scheme="dark"] input[type="text"],
[data-color-scheme="dark"] input[type="email"],
[data-color-scheme="dark"] input[type="color"],
[data-color-scheme="dark"] select,
[data-color-scheme="dark"] textarea {
  background:color-mix(in srgb,var(--panel-solid) 94%,black) !important;
  color:var(--ink) !important;
  border-color:var(--line) !important;
}
[data-color-scheme="dark"] .canvas-shell {
  background:linear-gradient(180deg,color-mix(in srgb,var(--panel-solid) 92%,black),color-mix(in srgb,var(--panel-solid) 78%,var(--bg3))) !important;
}
[data-color-scheme="dark"] .theme-icon,
[data-color-scheme="dark"] .run-chip,
[data-color-scheme="dark"] .btn.secondary {
  background:var(--panel-solid) !important;
  color:var(--ink) !important;
  border-color:var(--line) !important;
}

/* Voice input is embedded in the existing textarea surfaces. */
.voice-input-shell { position:relative; min-width:0; }
.voice-input-shell textarea { padding-right:52px; padding-bottom:29px; }
.voice-input-large textarea { min-height:142px; }
.voice-input-button {
  position:absolute;
  right:9px;
  bottom:9px;
  z-index:3;
  width:38px;
  height:38px;
  display:grid;
  place-items:center;
  border:1px solid color-mix(in srgb,var(--accent) 24%,var(--line));
  border-radius:12px;
  background:color-mix(in srgb,var(--panel-solid) 90%,var(--accent) 10%);
  color:var(--accent);
  box-shadow:0 7px 18px color-mix(in srgb,var(--accent) 15%,transparent);
  cursor:pointer;
  transition:transform .16s ease,background .16s ease,color .16s ease,box-shadow .16s ease;
}
.voice-input-button svg { width:20px; height:20px; fill:none; stroke:currentColor; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }
.voice-input-button:hover { transform:translateY(-1px); background:color-mix(in srgb,var(--accent) 13%,var(--panel-solid)); }
.voice-input-button.listening {
  color:#fff;
  background:linear-gradient(135deg,var(--danger),color-mix(in srgb,var(--danger) 60%,var(--accent2)));
  box-shadow:0 0 0 7px color-mix(in srgb,var(--danger) 13%,transparent),0 10px 25px color-mix(in srgb,var(--danger) 28%,transparent);
  animation:voicePulse 1.25s infinite;
}
.voice-input-button.unsupported { opacity:.58; }
@keyframes voicePulse { 50% { transform:scale(1.06); box-shadow:0 0 0 11px color-mix(in srgb,var(--danger) 5%,transparent),0 12px 30px color-mix(in srgb,var(--danger) 30%,transparent); } }
.voice-input-status {
  min-height:17px;
  margin:5px 4px 0;
  color:var(--muted);
  font-size:9.5px;
  font-weight:750;
  line-height:1.35;
  overflow-wrap:anywhere;
}
.voice-input-status:empty { display:none; }
.voice-input-status[data-type="listening"] { color:var(--accent); }
.voice-input-status[data-type="recovering"] { color:var(--warn); animation:voiceStatusPulse 1.15s ease-in-out infinite; }
@keyframes voiceStatusPulse { 50% { opacity:.58; } }
.voice-input-status[data-type="processing"] { color:var(--accent2); }
.voice-input-status[data-type="success"] { color:var(--accent3); }
.voice-input-status[data-type="warning"] { color:var(--warn); }
.voice-input-status[data-type="error"] { color:var(--danger); }
.ai-chat-form { grid-template-columns:minmax(0,1fr) 40px; align-items:end; }
.ai-chat-form .voice-input-shell textarea { min-height:54px; }
.ai-chat-form .voice-input-button { width:34px; height:34px; right:7px; bottom:7px; border-radius:10px; }
.ai-chat-send { min-height:48px; }

/* Curated professional theme gallery. */
.content-grid.settings-layout { grid-template-columns:minmax(0,1fr); }
.content-grid.settings-layout .visual-panel { display:none !important; }
.content-grid.settings-layout .controls-panel { max-width:1200px; }
.theme-gallery { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:11px; margin:13px 0 15px; }
.theme-choice {
  position:relative;
  display:grid;
  grid-template-columns:112px minmax(0,1fr) 24px;
  gap:12px;
  align-items:center;
  min-width:0;
  padding:11px;
  border:1px solid var(--line);
  border-radius:17px;
  background:color-mix(in srgb,var(--panel-solid) 88%,transparent);
  color:var(--ink);
  text-align:left;
  cursor:pointer;
  transition:transform .16s ease,border-color .16s ease,box-shadow .16s ease,background .16s ease;
}
.theme-choice:hover { transform:translateY(-1px); border-color:color-mix(in srgb,var(--accent) 45%,var(--line)); box-shadow:0 12px 28px rgba(2,44,80,.08); }
.theme-choice.selected { border-color:var(--accent); background:color-mix(in srgb,var(--accent) 6%,var(--panel-solid)); box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 10%,transparent); }
.theme-preview {
  position:relative;
  display:grid;
  grid-template-columns:25px 1fr;
  grid-template-rows:1fr 1fr;
  gap:5px;
  width:112px;
  height:66px;
  padding:7px;
  overflow:hidden;
  border:1px solid color-mix(in srgb,var(--preview-ink) 13%,transparent);
  border-radius:13px;
  background:var(--preview-bg);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.2);
}
.theme-preview i { display:block; border-radius:6px; }
.theme-preview i:nth-child(1) { grid-row:1/3; background:var(--preview-sidebar); }
.theme-preview i:nth-child(2) { background:var(--preview-panel); box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--preview-ink) 8%,transparent); }
.theme-preview i:nth-child(3) { background:linear-gradient(90deg,var(--preview-accent),var(--preview-accent2)); }
.theme-preview i:nth-child(4) { position:absolute; right:14px; top:16px; width:25px; height:6px; background:var(--preview-accent); opacity:.82; }
.theme-copy { min-width:0; }
.theme-copy b,.theme-copy small { display:block; }
.theme-copy b { font-size:11.5px; }
.theme-copy small { margin-top:4px; color:var(--muted); font-size:9.2px; line-height:1.35; }
.theme-selected-mark { width:22px; height:22px; display:grid; place-items:center; border-radius:50%; background:color-mix(in srgb,var(--line) 75%,transparent); color:transparent; font-size:11px; font-weight:950; }
.theme-choice.selected .theme-selected-mark { background:var(--accent); color:#fff; }
.theme-setting-row { margin:9px 0 12px; padding:11px; border:1px solid var(--line); border-radius:14px; background:color-mix(in srgb,var(--accent) 4%,transparent); }

/* Expert About documentation. */
.version-badge { display:inline-flex; margin-top:7px; padding:6px 9px; border-radius:999px; background:color-mix(in srgb,var(--accent) 10%,transparent); color:var(--accent); font-size:9px; font-weight:900; }
.about-feature-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; }
.about-feature-grid article { position:relative; min-width:0; padding:14px 14px 14px 48px; border:1px solid var(--line); border-radius:17px; background:color-mix(in srgb,var(--panel-solid) 81%,transparent); }
.about-feature-grid article > span { position:absolute; left:13px; top:13px; width:27px; height:27px; display:grid; place-items:center; border-radius:9px; background:linear-gradient(135deg,var(--accent),var(--accent2)); color:#fff; font-size:8.5px; font-weight:950; }
.about-feature-grid h3 { margin:0 0 5px; font-size:12px; }
.about-feature-grid p { margin:0; color:var(--muted); font-size:10px; line-height:1.48; }
.table-scroll { width:100%; overflow:auto; border:1px solid var(--line); border-radius:15px; }
.table-scroll .table { min-width:720px; }
.table-scroll .table tr:last-child td { border-bottom:0; }

/* Drawer layer is available on tablets and phones. */
.ai-backdrop { display:none; position:fixed; inset:0; z-index:74; border:0; padding:0; background:rgba(2,8,23,.48); backdrop-filter:blur(4px); }
@media (max-width:1380px) {
  .app-shell.ai-open .ai-backdrop { display:block; }
  .ai-generator-panel { z-index:80; }
  .ai-collapse { display:grid !important; place-items:center; }
  body.ai-drawer-open { overflow:hidden !important; touch-action:none; }
}

@media (max-width:980px) {
  .theme-gallery { grid-template-columns:1fr; }
  .about-feature-grid { grid-template-columns:1fr; }
  .setting-row { align-items:flex-start; flex-direction:column; }
  .setting-row .btn { width:100%; }
}

@media (max-width:760px) {
  html { scroll-padding-top:104px; }
  body { padding-bottom:env(safe-area-inset-bottom); }
  .sidebar { padding-top:max(8px,env(safe-area-inset-top)) !important; }
  .workspace { padding-left:max(10px,env(safe-area-inset-left)) !important; padding-right:max(10px,env(safe-area-inset-right)) !important; }
  .topbar { display:grid !important; grid-template-columns:1fr; align-items:stretch !important; min-height:0 !important; height:auto !important; }
  .top-actions { display:grid !important; grid-template-columns:44px 44px minmax(0,1fr); gap:8px !important; }
  .ai-top-toggle,.theme-icon { width:44px !important; min-width:44px !important; height:44px !important; }
  .run-chip { min-width:0; overflow:hidden; text-overflow:ellipsis; text-align:center; padding:10px 8px; }
  .ai-generator-panel {
    inset:0 !important;
    left:0 !important;
    top:0 !important;
    bottom:0 !important;
    width:100vw !important;
    height:100dvh !important;
    max-height:100dvh !important;
    padding:max(14px,env(safe-area-inset-top)) max(14px,env(safe-area-inset-right)) max(18px,env(safe-area-inset-bottom)) max(14px,env(safe-area-inset-left)) !important;
    border:0 !important;
    overflow-y:auto !important;
    overscroll-behavior:contain;
  }
  .ai-generator-header { position:sticky; top:-14px; z-index:5; margin:-14px -14px 0; padding:14px; background:color-mix(in srgb,var(--panel-solid) 94%,transparent); border-bottom:1px solid var(--line); backdrop-filter:blur(16px); }
  .ai-collapse { width:44px !important; height:44px !important; border-radius:14px !important; font-size:30px !important; }
  .ai-collapse::after { content:'Close'; font-size:0; }
  .voice-input-button { width:44px; height:44px; border-radius:14px; }
  .voice-input-shell textarea { padding-right:61px; }
  input[type="number"],input[type="text"],input[type="email"],select,textarea { font-size:16px !important; min-height:44px; }
  textarea { line-height:1.45; }
  .btn,.step,.bc-card,.post-card,.export-tile { min-height:44px; }
  .theme-gallery { grid-template-columns:1fr; }
  .theme-choice { grid-template-columns:96px minmax(0,1fr) 22px; padding:10px; }
  .theme-preview { width:96px; height:61px; }
  .about-card img { max-width:250px; justify-self:center; }
  .about-feature-grid article { padding:13px 13px 13px 47px; }
  .table-scroll { margin-inline:0; }
  .table-scroll .table { min-width:650px; font-size:12px; }
  .modal { padding:max(8px,env(safe-area-inset-top)) 8px max(8px,env(safe-area-inset-bottom)); }
  .modal-card { width:100%; border-radius:20px; }
  .app-notices { top:max(10px,env(safe-area-inset-top)); }
  .scroll-fab { right:max(12px,env(safe-area-inset-right)); bottom:max(12px,env(safe-area-inset-bottom)); }
  .ai-chat-form { grid-template-columns:minmax(0,1fr) 46px; }
  .ai-chat-form .voice-input-button { width:40px; height:40px; }
  .ai-chat-send { min-height:52px; border-radius:14px !important; }
}