/* ── RIGHT PANEL ──────────────────────────────────── */
#panel {
  width: var(--panel-w);
  background: var(--clr-panel-bg);
  border-left: 1px solid var(--clr-panel-border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  flex-shrink: 0;
}

.panel-section {
  border-bottom: 1px solid var(--clr-panel-border);
}

.panel-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  cursor: pointer;
  background: #fff;
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: #475569;
  border-bottom: 1px solid transparent;
  user-select: none;
}
.panel-section-header:hover { background: #f8fafc; }
.panel-section-header.open { border-bottom-color: var(--clr-panel-border); }

.collapse-btn {
  background: none;
  border: none;
  color: #94a3b8;
  font-size: 14px;
  cursor: pointer;
  transition: transform .2s;
  padding: 0;
  line-height: 1;
}
.collapsed .collapse-btn { transform: rotate(-90deg); }

.panel-section-body {
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.panel-section-body.collapsed { display: none; }

/* ── FLOORS ─────────────────────────────────────── */
#floors-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.floor-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid #e2e8f0;
  background: #fff;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.floor-item:hover { background: #f1f5f9; }
.floor-item.active {
  border-color: var(--clr-accent);
  background: rgba(59,130,246,.06);
}
.floor-item .floor-icon { font-size: 14px; }
.floor-name-input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 13px;
  color: var(--clr-text);
  outline: none;
  cursor: pointer;
  min-width: 0;
}
.floor-item.active .floor-name-input { font-weight: 600; color: var(--clr-accent); }
.floor-name-input:focus { cursor: text; }
.floor-vis-btn {
  background: none;
  border: none;
  color: #94a3b8;
  cursor: pointer;
  font-size: 14px;
  padding: 0 2px;
  flex-shrink: 0;
}
.floor-vis-btn:hover { color: var(--clr-text); }
.floor-del-btn {
  background: none;
  border: none;
  color: #cbd5e1;
  cursor: pointer;
  font-size: 12px;
  padding: 0 2px;
  flex-shrink: 0;
}
.floor-del-btn:hover { color: #ef4444; }

.btn-add {
  background: #f1f5f9;
  border: 1px dashed #cbd5e1;
  color: #64748b;
  padding: 6px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  text-align: center;
  width: 100%;
  transition: background .12s, color .12s;
}
.btn-add:hover { background: #e2e8f0; color: var(--clr-text); }

/* ── ROOMS ──────────────────────────────────────── */
#rooms-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.room-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 8px;
  border-radius: 5px;
  border: 1px solid #e2e8f0;
  background: #fff;
}
.room-color-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.room-info { flex: 1; min-width: 0; }
.room-name {
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.room-area { font-size: 11px; color: var(--clr-text-muted); }
.room-del-btn {
  background: none; border: none; color: #cbd5e1;
  cursor: pointer; font-size: 12px; padding: 0 2px;
}
.room-del-btn:hover { color: #ef4444; }

.rooms-total {
  padding: 6px 8px;
  background: #eff6ff;
  border-radius: 5px;
  font-size: 12px;
  color: #1d4ed8;
  font-weight: 600;
}

/* ── PROPERTIES INSPECTOR ───────────────────────── */
#props-section {
  background: linear-gradient(135deg, #eff6ff 0%, #f0fdf4 100%);
  border-bottom: 2px solid var(--clr-accent);
}
#props-section .panel-section-header {
  background: transparent;
  border-bottom: 1px solid rgba(59,130,246,.15);
  color: var(--clr-accent);
}
.prop-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5px 0;
  border-bottom: 1px solid rgba(0,0,0,.04);
  font-size: 12px;
}
.prop-row:last-of-type { border-bottom: none; }
.prop-label { color: #64748b; }
.prop-val   { color: #1e293b; }
.prop-delete-btn {
  width: 100%;
  margin-top: 8px;
  padding: 5px;
  background: #fff0f0;
  border: 1px solid #fecaca;
  border-radius: 5px;
  color: #dc2626;
  font-size: 11px;
  cursor: pointer;
  transition: background .12s;
}
.prop-delete-btn:hover { background: #fee2e2; }
.btn-icon-sm {
  background: none;
  border: none;
  color: #94a3b8;
  cursor: pointer;
  font-size: 12px;
  padding: 2px 4px;
}
.btn-icon-sm:hover { color: #ef4444; }

/* ── MATERIALS ──────────────────────────────────── */
#materials-list {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.material-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 0;
  border-bottom: 1px solid #f1f5f9;
  font-size: 12px;
}
.material-row:last-child { border-bottom: none; }
.material-name { color: #475569; }
.material-qty { font-weight: 600; color: var(--clr-text); }
.material-unit { color: #94a3b8; font-size: 11px; margin-left: 2px; }

.btn-link {
  background: none;
  border: none;
  color: var(--clr-accent);
  cursor: pointer;
  font-size: 12px;
  padding: 2px 0;
  text-align: left;
}
.btn-link:hover { text-decoration: underline; }

/* ── COSTS ──────────────────────────────────────── */
#costs-breakdown {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin-bottom: 8px;
}

.cost-row {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  padding: 3px 0;
  border-bottom: 1px solid #f1f5f9;
}
.cost-row:last-child { border-bottom: none; }
.cost-label { color: #475569; }
.cost-value { font-weight: 500; }

.cost-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px;
  background: var(--clr-header);
  border-radius: 7px;
  color: #fff;
  margin-top: 4px;
}
.cost-total span { font-size: 11px; text-transform: uppercase; letter-spacing: .5px; color: #94a3b8; }
.cost-total strong { font-size: 15px; color: #34d399; }

.cost-note {
  font-size: 10px;
  color: #94a3b8;
  font-style: italic;
  margin-top: 6px;
}

/* ── PRICES EDITOR TABLE ────────────────────────── */
.prices-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.prices-table th {
  text-align: left;
  color: #64748b;
  font-weight: 600;
  padding: 4px 6px;
  border-bottom: 1px solid #e2e8f0;
  font-size: 11px;
}
.prices-table td {
  padding: 6px 6px;
  border-bottom: 1px solid #f1f5f9;
  vertical-align: middle;
}
.prices-table .price-input {
  width: 100%;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  padding: 3px 6px;
  font-size: 12px;
  text-align: right;
  outline: none;
}
.prices-table .price-input:focus { border-color: var(--clr-accent); }
.prices-section-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: #94a3b8;
  padding: 8px 6px 2px;
}

/* ── STRUCTURAL ─────────────────────────────────── */
.struct-toggle {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  color: #475569;
  padding: 2px 0 6px;
  cursor: pointer;
}
.struct-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5px 0;
  border-bottom: 1px solid #f1f5f9;
  font-size: 12px;
}
.struct-row:last-child { border-bottom: none; }
.struct-row span { color: #475569; }
.struct-row strong { color: var(--clr-text); font-size: 13px; }
.struct-row.head {
  background: #fffbeb;
  padding: 6px 8px;
  border-radius: 5px;
  margin-bottom: 4px;
  border: none;
}
.struct-row.head span  { color: #92400e; font-weight: 600; }
.struct-row.head strong { color: #78350f; }
.struct-sep {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: #94a3b8;
  padding: 8px 0 2px;
}
.struct-note {
  font-size: 10px;
  color: #94a3b8;
  font-style: italic;
  margin-top: 8px;
  line-height: 1.5;
}

/* ── STRUCTURAL selects ─────────────────────────── */
.struct-select-label {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 11px;
  color: #475569;
  padding: 2px 0;
}
.struct-select {
  font-size: 12px;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  padding: 5px 6px;
  outline: none;
  color: var(--clr-text);
  background: #fff;
  cursor: pointer;
}
.struct-select:focus { border-color: var(--clr-accent); }

/* ── Proceso constructivo ───────────────────────── */
.struct-process {
  margin: 4px 0 0 0;
  padding-left: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.struct-process li {
  font-size: 11px;
  color: #475569;
  line-height: 1.4;
  padding: 2px 0;
  border-bottom: 1px solid #f1f5f9;
}
.struct-process li:last-child { border-bottom: none; }
.struct-process li::marker { color: var(--clr-accent); font-weight: 700; }

/* ── PROJECT LIST (modal) ───────────────────────── */
.project-list { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.project-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  background: #fff;
  cursor: pointer;
}
.project-item:hover { background: #f8fafc; border-color: var(--clr-accent); }
.project-item-name { font-weight: 600; font-size: 13px; }
.project-item-meta { font-size: 11px; color: #94a3b8; }
.project-item-del {
  background: none; border: none; color: #cbd5e1;
  cursor: pointer; font-size: 14px; padding: 2px 4px;
}
.project-item-del:hover { color: #ef4444; }

/* ── INSTALLATIONS ALERTS ───────────────────────── */
.inst-alert { font-size:11px; padding:5px 7px; border-radius:4px; margin:2px 0; line-height:1.4; }
.inst-alert--warn  { background:#fffbeb; color:#92400e; border-left:3px solid #d97706; }
.inst-alert--error { background:#fff0f0; color:#991b1b; border-left:3px solid #dc2626; }
.inst-alert--info  { background:#eff6ff; color:#1d4ed8; border-left:3px solid #3b82f6; }
.inst-alert--ok    { background:#f0fdf4; color:#166534; border-left:3px solid #22c55e; }

.inst-count-row {
  display:flex; justify-content:space-between; align-items:center;
  font-size:11px; padding:3px 0; border-bottom:1px solid #f1f5f9;
}
.inst-count-row:last-child { border-bottom:none; }
.inst-count-label { color:#475569; }
.inst-count-val   { font-weight:600; color:var(--clr-text); }
.inst-section-sep {
  font-size:10px; font-weight:700; text-transform:uppercase; letter-spacing:.5px;
  color:#94a3b8; padding:6px 0 2px;
}

/* ── ELECTRICAL CATALOG ─────────────────────────── */
#elec-catalog {
  display:flex; flex-direction:column; gap:6px;
  max-height:280px; overflow-y:auto; padding-right:2px;
}

/* ── Layer Manager ───────────────────────────────── */
#layers-list { display: flex; flex-direction: column; gap: 4px; padding: 2px 0; }

.layer-item {
  display: flex; align-items: center; gap: 7px;
  padding: 4px 6px; border-radius: 5px;
  border: 1px solid #e2e8f0; background: #fff;
  transition: background .12s;
}
.layer-item:hover { background: #f8fafc; }

.layer-vis-btn {
  flex-shrink: 0; width: 26px; height: 26px;
  border: 1px solid #e2e8f0; border-radius: 4px;
  background: #f0f9ff; cursor: pointer;
  font-size: 13px; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  transition: opacity .15s, background .15s;
}
.layer-vis-btn.layer-off { background: #f1f5f9; opacity: 0.38; }
.layer-vis-btn:hover { background: #dbeafe; }

.layer-label { font-size: 11.5px; font-weight: 600; color: #374151; flex-shrink: 0; }
.layer-label.layer-label-off { color: #94a3b8; text-decoration: line-through; }

.layer-hint { font-size: 9.5px; color: #94a3b8; flex: 1; text-align: right; }

/* ── Sub-capas ──────────────────────────────────── */
.layer-sub-item {
  display: flex; align-items: center; gap: 6px;
  padding: 2px 4px 2px 22px; border-radius: 4px;
  cursor: default;
}
.layer-sub-item:hover { background: #f8fafc; }
.layer-sub-vis-btn {
  flex-shrink: 0; width: 20px; height: 20px;
  border: none; border-radius: 3px;
  background: transparent; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: opacity .15s;
}
.layer-sub-vis-btn.layer-off { opacity: 0.30; }
.layer-sub-vis-btn:hover { background: #f1f5f9; }
.layer-sub-label { font-size: 10.5px; color: #64748b; }
.layer-sub-label.layer-label-off { color: #94a3b8; text-decoration: line-through; }

/* ── Pipe mode toggle ───────────────────────────── */
.pipe-mode-row {
  display: flex; gap: 4px; margin-bottom: 4px;
}
.pipe-mode-btn {
  flex: 1; padding: 4px 6px; font-size: 11px;
  border: 1px solid #e2e8f0; border-radius: 4px;
  background: #f8fafc; cursor: pointer; color: #475569;
  transition: background .12s, color .12s;
}
.pipe-mode-btn.active { background: #2563eb; color: #fff; border-color: #2563eb; }
.pipe-mode-btn:hover:not(.active) { background: #e2e8f0; }

/* ── Circuit panel ──────────────────────────────── */
.circuit-item {
  display: flex; align-items: center; gap: 6px;
  padding: 5px 8px; border-radius: 5px;
  background: #fff; border: 1px solid #e2e8f0;
  cursor: pointer; transition: background .12s;
  margin-bottom: 3px;
}
.circuit-item:hover { background: #f8fafc; }
.circuit-item.active { background: #eff6ff; border-color: #bfdbfe; }
.circuit-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.circuit-label { font-size: 12px; font-weight: 600; color: #374151; flex: 1; }
.circuit-active-badge {
  font-size: 9px; color: #2563eb; background: #dbeafe;
  padding: 1px 5px; border-radius: 10px;
}

/* ── AREAS PANEL ─────────────────────────────────── */
.area-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5px 4px;
  border-bottom: 1px solid #f1f5f9;
  font-size: 12px;
}
.area-row:last-child { border-bottom: none; }
.area-row span { color: #475569; }
.area-row strong { color: var(--clr-text); font-weight: 600; }

.area-total {
  background: #eff6ff;
  padding: 5px 8px;
  border-radius: 4px;
  margin: 2px 0;
  border-bottom: none !important;
}
.area-total strong { color: #1d4ed8; }

.area-index {
  background: #f0fdf4;
  padding: 5px 8px;
  border-radius: 4px;
  margin: 2px 0;
  border-bottom: none !important;
}
.area-index strong { color: #15803d; }

/* ── PROJECT INFO INPUTS ─────────────────────────── */
.proj-info-label {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 11px;
  color: #475569;
}
.proj-info-input {
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  padding: 5px 7px;
  font-size: 12px;
  color: var(--clr-text);
  outline: none;
  background: #fff;
  width: 100%;
}
.proj-info-input:focus { border-color: var(--clr-accent); }