:root {
  --bg: #f4f5f7;
  --panel: #ffffff;
  --border: #d8dbe0;
  --text: #1f2430;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --ok: #16a34a;
  --warn: #d97706;
  --err: #dc2626;
  --shadow: 0 1px 3px rgba(0,0,0,.08);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  color: var(--text);
  background: var(--bg);
  font-size: 14px;
}

.view { display: flex; flex-direction: column; height: 100vh; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.spacer { flex: 1; }

/* ---------- topbar ---------- */
.topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow);
  flex: 0 0 auto;
}
.topbar h1 { font-size: 16px; margin: 0; }

.pill {
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 999px;
  background: #eef2ff;
  color: var(--accent-dark);
}

/* ---------- buttons ---------- */
button {
  font: inherit;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
}
button:hover { background: var(--accent-dark); }
button.ghost {
  background: transparent;
  color: var(--accent);
  border-color: var(--border);
}
button.ghost:hover { background: #eef2ff; }
button.mini { padding: 2px 8px; font-size: 12px; }
button.primary { background: var(--ok); border-color: var(--ok); }
button.primary:hover { filter: brightness(.95); }
button:disabled { opacity: .5; cursor: not-allowed; }

/* ---------- panels / inputs ---------- */
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  box-shadow: var(--shadow);
  margin-bottom: 12px;
}
.panel h2 { font-size: 15px; margin: 0 0 10px; }
.panel h3 { font-size: 13px; margin: 0 0 8px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }

label { display: block; margin-bottom: 8px; font-size: 13px; }
label input[type=text], label input[type=number], label select, textarea {
  display: block;
  width: 100%;
  margin-top: 3px;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font: inherit;
  background: #fff;
}
textarea { width: 100%; resize: vertical; }
.row { display: flex; gap: 8px; }
.row > label { flex: 1; }
.hint { font-size: 12px; color: var(--muted); margin: 6px 0 0; }
.list-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }

/* ---------- houses view ---------- */
.houses-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 16px;
  padding: 16px;
  overflow: auto;
}
.houses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}
.house-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  background: #fff;
}
.house-card h4 { margin: 0 0 2px; font-size: 15px; }
.house-card .builder { color: var(--muted); font-size: 12px; margin-bottom: 8px; }
.badges { display: flex; flex-wrap: wrap; gap: 4px; margin: 8px 0; }
.badge {
  font-size: 11px;
  padding: 1px 7px;
  border-radius: 999px;
  background: #eee;
  color: var(--muted);
}
.badge.on { background: #dcfce7; color: var(--ok); }
.card-actions { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.card-actions button { padding: 4px 10px; font-size: 13px; }
.upload-row { display: flex; flex-direction: column; gap: 6px; margin-top: 8px; }
.upload-row input[type=file] { font-size: 12px; }
.card-job { font-size: 12px; margin-top: 6px; }

/* ---------- review view (3-pane) ---------- */
.review-layout {
  display: grid;
  grid-template-columns: 270px 1fr 320px;
  flex: 1 1 auto;
  min-height: 0;
}
.side {
  overflow: auto;
  padding: 12px;
  background: var(--bg);
  border-right: 1px solid var(--border);
}
.side.right { border-right: none; border-left: 1px solid var(--border); }

/* drawing tools segment */
.tool-seg { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-bottom: 8px; }
.tool-seg .tool {
  background: #fff; color: var(--text); border: 1px solid var(--border);
  padding: 8px 6px; font-size: 13px;
}
.tool-seg .tool:hover { background: #eef2ff; }
.tool-seg .tool.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* class palette */
.palette { display: flex; flex-direction: column; gap: 5px; margin-top: 4px; }
.pal-row {
  display: flex; align-items: center; gap: 6px;
  border: 1px solid var(--border); border-radius: 6px;
  padding: 5px 7px; background: #fff; cursor: pointer;
}
.pal-row.active { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(37,99,235,.18); }
.pal-row .swatch {
  width: 16px; height: 16px; border-radius: 4px; border: 1px solid rgba(0,0,0,.2);
  flex: 0 0 auto;
}
.pal-row .pname { flex: 1; font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pal-row input[type=checkbox] { flex: 0 0 auto; }
.pal-row .pal-btn {
  background: transparent; border: none; color: var(--muted); padding: 0 4px;
  font-size: 13px; cursor: pointer;
}
.pal-row .pal-btn:hover { color: var(--accent); background: transparent; }
.pal-row .pcount { font-size: 11px; color: var(--muted); }

.collapse > h3 { cursor: default; }

/* Canvas */
.canvas-wrap { display: flex; flex-direction: column; min-width: 0; min-height: 0; background: #2b2f38; }
.canvas-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: #1f2430;
  color: #fff;
  flex: 0 0 auto;
  flex-wrap: wrap;
}
.canvas-toolbar button { padding: 3px 9px; font-size: 13px; }
.canvas-toolbar button.nav { padding: 3px 8px; }
.canvas-toolbar .navlabel { font-size: 11px; letter-spacing: .04em; color: #93c5fd; text-transform: uppercase; }
.canvas-toolbar .chk { color: #e5e7eb; display: inline-flex; align-items: center; gap: 4px; }
.canvas-toolbar .sep { width: 1px; height: 18px; background: #3a4150; margin: 0 2px; }
#canvas { flex: 1 1 auto; display: block; cursor: grab; touch-action: none; }
#canvas.panning { cursor: grabbing; }
#canvas.drawing { cursor: crosshair; }

.job-status {
  margin-top: 8px;
  font-size: 12px;
  padding: 6px 8px;
  border-radius: 6px;
  background: #eef2ff;
  color: var(--accent-dark);
}
.job-status.error { background: #fef2f2; color: var(--err); }
.job-status.done { background: #dcfce7; color: var(--ok); }

/* takeoff reference viewer */
.nav-inline { display: inline-flex; align-items: center; gap: 4px; }
.nav-inline .nav { padding: 1px 7px; font-size: 12px; }
.takeoff-wrap {
  border: 1px solid var(--border); border-radius: 6px; overflow: auto;
  max-height: 360px; background: #2b2f38; text-align: center;
}
.takeoff-wrap img { max-width: 100%; display: block; }
.takeoff-wrap p { padding: 24px; }

/* annotation list */
.manual-list { display: flex; flex-direction: column; gap: 4px; max-height: 200px; overflow: auto; }
.manual-row {
  display: flex; align-items: center; gap: 6px;
  border: 1px solid var(--border); border-radius: 6px; padding: 4px 7px; background: #fff; font-size: 12px;
  cursor: pointer;
}
.manual-row:hover { background: #f3f6fb; }
.manual-row.selected { border-color: var(--accent, #2563eb); box-shadow: 0 0 0 2px rgba(37,99,235,.25); background: #eef4ff; }

/* small takeoff thumbnail: hint it opens a separate viewer window */
#takeoff-img { cursor: zoom-in; }
.manual-row .swatch { width: 12px; height: 12px; border-radius: 3px; flex: 0 0 auto; border: 1px solid rgba(0,0,0,.2); }
.manual-row .ml-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.manual-row .ml-type { color: var(--muted); }
.manual-row .del { background: transparent; border: none; color: var(--err); padding: 0 4px; cursor: pointer; }
.manual-row .del:hover { background: transparent; filter: brightness(.85); }

/* auto suggestion stats */
.class-list { display: flex; flex-direction: column; gap: 6px; }
.class-row {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
  background: #fff;
}
.class-row .cr-top { display: flex; align-items: center; gap: 6px; }
.class-row .swatch {
  width: 14px; height: 14px; border-radius: 3px; border: 1px solid rgba(0,0,0,.2);
  flex: 0 0 auto;
}
.class-row .cname { flex: 1; font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.class-row .qty { font-size: 12px; color: var(--muted); margin-top: 4px; display: flex; gap: 10px; }
.class-row .qty .mismatch { color: var(--err); font-weight: 600; }

/* ---------- modal ---------- */
.modal {
  position: fixed; inset: 0; z-index: 1100;
  background: rgba(0,0,0,.35); display: flex; align-items: center; justify-content: center;
}
.modal-box {
  background: #fff; border-radius: 10px; padding: 18px; width: 320px;
  box-shadow: 0 8px 30px rgba(0,0,0,.25);
}
.modal-box h3 { margin: 0 0 12px; font-size: 15px; }
.modal-actions { margin-top: 6px; }
.modal-actions button { flex: 1; }

/* ---------- toasts ---------- */
#toasts {
  position: fixed;
  top: 12px;
  right: 12px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  background: #1f2430;
  color: #fff;
  padding: 10px 14px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,.2);
  font-size: 13px;
  max-width: 360px;
}
.toast.error { background: var(--err); }
.toast.ok { background: var(--ok); }

/* full-width helper button */
button.wide { width: 100%; margin-top: 6px; }

/* ---------- topbar user / logout ---------- */
.user-name { font-size: 13px; color: var(--muted); }

/* ---------- auth (login / signup) ---------- */
.auth-wrap {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.auth-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 8px 30px rgba(0,0,0,.12);
  padding: 24px;
  width: 340px;
}
.auth-box h1 { font-size: 18px; margin: 0 0 16px; }
.auth-tabs { display: flex; gap: 6px; margin-bottom: 16px; }
.auth-tab {
  flex: 1;
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}
.auth-tab:hover { background: #eef2ff; }
.auth-tab.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.auth-box input[type=email], .auth-box input[type=password], .auth-box input[type=text] {
  display: block;
  width: 100%;
  margin-top: 3px;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font: inherit;
  background: #fff;
}
.auth-box #auth-submit { width: 100%; margin-top: 6px; }
.auth-error {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--err);
  background: #fef2f2;
  padding: 8px 10px;
  border-radius: 6px;
}

/* ---------- admin (User Management) ---------- */
.admin-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 16px;
  padding: 16px;
  overflow: auto;
}
.users-wrap { min-width: 0; }
.table-scroll { overflow: auto; }
.users-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.users-table th {
  text-align: left;
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  padding: 8px 10px;
  white-space: nowrap;
}
.users-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.users-table tbody tr:hover { background: #f3f6fb; }
.role-pill {
  display: inline-block;
  font-size: 11px;
  padding: 1px 8px;
  border-radius: 999px;
  background: #eef2ff;
  color: var(--accent-dark);
}
.role-pill.admin { background: #fef3c7; color: #92400e; }
.u-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.u-actions button { white-space: nowrap; }
button.danger { color: var(--err); border-color: var(--err); }
button.danger:hover { background: #fef2f2; }