/* knx-app.css — KNX Config Studio styles built on TaskHub tokens */

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body { background: var(--bg-1); color: var(--fg-1); font-family: var(--font-body); }

button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; color: inherit; }

/* ---- App shell ---- */
.app-shell { min-height: 100vh; display: flex; flex-direction: column; }

.app-topbar {
  height: 56px; background: var(--white); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: var(--space-4); padding: 0 var(--space-5);
  position: sticky; top: 0; z-index: 50;
}
.app-topbar .brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; }
.app-topbar .brand-mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent-1) 100%);
  display: grid; place-items: center; color: white; font-size: 14px; font-weight: 800;
}
.app-topbar .brand-name { font-size: 15px; letter-spacing: 0.005em; }
.app-topbar .brand-sub { font-size: 12px; color: var(--fg-3); font-family: var(--font-body); margin-left: 4px; }
.app-topbar .topbar-spacer { flex: 1; }

.app-tabs { display: flex; gap: 2px; padding: 4px; background: var(--bg-2); border-radius: var(--radius-pill); }
.app-tab {
  border: none; background: transparent; padding: 6px 14px; border-radius: var(--radius-pill);
  font-size: 13px; font-weight: 600; color: var(--fg-3); cursor: pointer; transition: all 150ms;
}
.app-tab:hover { color: var(--fg-1); }
.app-tab.active { background: var(--white); color: var(--fg-1); box-shadow: var(--elev-1); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px; border-radius: var(--radius-sm); border: 1px solid transparent;
  font-size: 13px; font-weight: 600; line-height: 1; transition: all 150ms;
  white-space: nowrap;
}
.btn-primary { background: var(--action-primary); color: white; }
.btn-primary:hover { background: var(--action-primary-hover); }
.btn-primary:active { background: var(--action-primary-active); }
.btn-secondary { background: var(--white); color: var(--fg-1); border-color: var(--border); }
.btn-secondary:hover { background: var(--bg-1); border-color: var(--border-strong); }
.btn-ghost { background: transparent; color: var(--fg-2); }
.btn-ghost:hover { background: var(--action-primary-hover-10); color: var(--action-primary); }
.btn-danger { background: var(--white); color: var(--state-error); border-color: var(--border); }
.btn-danger:hover { background: var(--state-error-bg); border-color: var(--state-error); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-icon { padding: 6px; width: 30px; height: 30px; justify-content: center; }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }

/* ---- Inputs ---- */
.input, .select {
  width: 100%; padding: 8px 12px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--white); color: var(--fg-1);
  font-size: 13px; line-height: 1.4; transition: border-color 150ms, box-shadow 150ms;
}
.input:focus, .select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-10); }
.input.invalid { border-color: var(--state-error); box-shadow: 0 0 0 3px rgba(218,20,20,0.08); }
.input-mono { font-family: var(--font-mono); font-size: 12.5px; }
.input-sm { padding: 5px 8px; font-size: 12px; }
.label { display: block; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--fg-3); margin-bottom: 6px; }
.field { display: block; }
.field + .field { margin-top: 14px; }
.helper { font-size: 11.5px; color: var(--fg-3); margin-top: 4px; }
.error-text { color: var(--state-error); font-size: 11.5px; margin-top: 4px; display: flex; align-items: center; gap: 4px; }

/* ---- Cards ---- */
.card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-md); }
.card-pad { padding: var(--space-5); }
.card-head { padding: 14px 18px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 10px; }
.card-head h4 { font-size: 14px; }

/* ---- Pills / tags ---- */
.pill { display: inline-flex; align-items: center; gap: 4px; padding: 2px 8px; border-radius: var(--radius-pill); font-size: 11px; font-weight: 600; line-height: 18px; white-space: nowrap; }
.pill-blue   { background: var(--primary-10);   color: var(--primary); }
.pill-violet { background: rgba(123,97,255,0.12); color: var(--accent-1); }
.pill-amber  { background: var(--secondary-30); color: #8B5A00; }
.pill-green  { background: var(--state-success-bg); color: var(--state-success); }
.pill-red    { background: var(--state-error-bg); color: var(--state-error); }
.pill-gray   { background: var(--bg-2); color: var(--fg-2); }

.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot-green { background: var(--state-success); }
.dot-red   { background: var(--state-error); }
.dot-gray  { background: var(--neutral-6); }
.dot-blue  { background: var(--primary); }

/* ---- Tree (Variant A) ---- */
.tree { font-size: 13px; }
.tree-item {
  display: flex; align-items: center; gap: 6px; padding: 6px 8px;
  border-radius: var(--radius-sm); cursor: pointer; user-select: none; color: var(--fg-2);
  transition: background 120ms;
}
.tree-item:hover { background: var(--bg-2); }
.tree-item.selected { background: var(--primary-10); color: var(--primary); }
.tree-item.selected .count { color: var(--primary); }
.tree-caret { width: 14px; height: 14px; display: inline-flex; align-items: center; justify-content: center; color: var(--fg-3); transition: transform 150ms; }
.tree-caret.open { transform: rotate(90deg); }
.tree-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tree-name.mono { font-family: var(--font-mono); font-size: 12px; }
.count { font-size: 11px; color: var(--fg-3); font-variant-numeric: tabular-nums; }

/* ---- Datatable ---- */
.dt { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 13px; }
.dt thead th {
  position: sticky; top: 0; background: var(--bg-1); z-index: 1;
  text-align: left; padding: 10px 12px; font-weight: 700; font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--fg-3); border-bottom: 1px solid var(--border);
}
.dt tbody td { padding: 8px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.dt tbody tr:hover { background: var(--primary-10); }
.dt tbody tr.selected { background: var(--primary-10); }
.dt input.cell { border: 1px solid transparent; background: transparent; padding: 4px 6px; border-radius: 4px; width: 100%; font-size: 13px; }
.dt input.cell:hover { border-color: var(--border); background: var(--white); }
.dt input.cell:focus { outline: none; border-color: var(--primary); background: var(--white); box-shadow: 0 0 0 2px var(--primary-10); }
.dt input.cell.invalid { border-color: var(--state-error); }
.dt input.cell.mono { font-family: var(--font-mono); font-size: 12.5px; }
.dt-empty { padding: 40px; text-align: center; color: var(--fg-3); font-size: 13px; }

.cb { width: 16px; height: 16px; accent-color: var(--primary); cursor: pointer; }

/* ---- Inspector ---- */
.inspector-section { padding: var(--space-5); border-bottom: 1px solid var(--border); }
.inspector-section:last-child { border-bottom: none; }
.inspector-section h5 {
  font-family: var(--font-display); font-weight: 700; font-size: 12px; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--fg-3); margin: 0 0 12px; display: flex; align-items: center; gap: 8px;
}

/* ---- Bulk action bar ---- */
.bulk-bar {
  position: sticky; bottom: 16px; left: 0; right: 0; margin: 16px;
  background: var(--black); color: white; border-radius: var(--radius-md); padding: 10px 16px;
  display: flex; align-items: center; gap: 14px; box-shadow: var(--elev-7); z-index: 20;
}
.bulk-bar .count-chip { background: var(--primary); padding: 3px 10px; border-radius: var(--radius-pill); font-size: 12px; font-weight: 700; }
.bulk-bar .sep { width: 1px; height: 20px; background: rgba(255,255,255,0.2); }
.bulk-bar .btn-dark { background: rgba(255,255,255,0.1); color: white; border: 1px solid rgba(255,255,255,0.15); }
.bulk-bar .btn-dark:hover { background: rgba(255,255,255,0.2); }

/* ---- Floor / room cards (Variant C) ---- */
.floor-strip { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px;
  border: 1px solid var(--border); background: var(--white); border-radius: var(--radius-pill);
  font-size: 12px; font-weight: 600; color: var(--fg-2); cursor: pointer; transition: all 120ms;
}
.chip:hover { border-color: var(--border-strong); }
.chip.active { background: var(--primary); color: white; border-color: var(--primary); }
.chip.active .count { color: rgba(255,255,255,0.8); }

.room-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.room-card {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-md);
  padding: 14px; cursor: pointer; transition: all 150ms; position: relative;
}
.room-card:hover { border-color: var(--primary); box-shadow: var(--elev-3); transform: translateY(-1px); }
.room-card.selected { border-color: var(--primary); box-shadow: 0 0 0 2px var(--primary-10); }
.room-card .name { font-weight: 700; font-size: 14px; margin-bottom: 6px; display: flex; align-items: center; gap: 6px; }
.room-card .meta { font-size: 11.5px; color: var(--fg-3); display: flex; gap: 10px; }
.room-card .icons { display: flex; gap: 4px; margin-top: 8px; flex-wrap: wrap; }
.room-card .iconbox { width: 22px; height: 22px; border-radius: 6px; background: var(--bg-2); display: grid; place-items: center; color: var(--fg-3); }

/* ---- Topbar pieces ---- */
.search-input { position: relative; flex: 1; max-width: 360px; }
.search-input input { padding-left: 32px; }
.search-input .lucide { position: absolute; left: 10px; top: 50%; transform: translateY(-50%); color: var(--fg-4); width: 16px; height: 16px; }

/* ---- Validation badge ---- */
.health-strip { display: flex; align-items: center; gap: 12px; font-size: 12px; }
.health-pill { display: flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: var(--radius-pill); background: var(--bg-1); border: 1px solid var(--border); font-weight: 600; }

/* ---- Empty / placeholder state ---- */
.placeholder {
  display: grid; place-items: center; padding: 60px; color: var(--fg-3); text-align: center;
}
.placeholder .pico { width: 48px; height: 48px; border-radius: 14px; background: var(--bg-2); display: grid; place-items: center; color: var(--fg-4); margin: 0 auto 12px; }

/* ---- Modal ---- */
.modal-scrim { position: fixed; inset: 0; background: rgba(9,16,29,0.45); backdrop-filter: blur(2px); z-index: 100; display: grid; place-items: center; }
.modal { background: var(--white); border-radius: var(--radius-lg); width: min(560px, 92vw); box-shadow: var(--elev-8); max-height: 90vh; display: flex; flex-direction: column; overflow: hidden; }
.modal-head { padding: 18px 22px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.modal-head h3 { font-size: 18px; font-weight: 700; }
.modal-body { padding: 22px; overflow: auto; }
.modal-foot { padding: 14px 22px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 8px; }

/* ---- Tabs (inside inspector / panels) ---- */
.subtabs { display: flex; border-bottom: 1px solid var(--border); padding: 0 var(--space-5); gap: 4px; background: var(--white); }
.subtab {
  border: none; background: transparent; padding: 12px 14px; font-size: 13px; font-weight: 600;
  color: var(--fg-3); cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px;
  display: inline-flex; align-items: center; gap: 8px;
}
.subtab:hover { color: var(--fg-1); }
.subtab.active { color: var(--primary); border-bottom-color: var(--primary); }
.subtab .badge { background: var(--bg-2); color: var(--fg-2); padding: 1px 7px; border-radius: var(--radius-pill); font-size: 11px; }
.subtab.active .badge { background: var(--primary-10); color: var(--primary); }

.tree-item-row { position: relative; }
.tree-item .row-actions { display: none; gap: 2px; margin-left: auto; }
.tree-item:hover .row-actions { display: inline-flex; }
.tree-item .row-act { width: 22px; height: 22px; padding: 0; }
.tree-item .row-act:hover { background: var(--bg-2); color: var(--fg-1); }
.tree-item .row-act-danger:hover { background: var(--state-error-bg); color: var(--state-error); }
.tree-item:hover .count { display: none; }

.lucide { stroke-width: 2; }

/* scrollbars */
.scroll { overflow: auto; }
.scroll::-webkit-scrollbar { width: 8px; height: 8px; }
.scroll::-webkit-scrollbar-thumb { background: var(--neutral-7); border-radius: 4px; }
.scroll::-webkit-scrollbar-thumb:hover { background: var(--neutral-6); }

/* artboard inner reset so it never bleeds */
.artboard-app { width: 100%; height: 100%; background: var(--bg-1); display: flex; flex-direction: column; overflow: hidden; }

/* small kbd */
kbd { font-family: var(--font-mono); font-size: 11px; background: var(--bg-1); border: 1px solid var(--border); border-bottom-width: 2px; border-radius: 4px; padding: 1px 5px; color: var(--fg-2); }

/* monospace inline */
.mono { font-family: var(--font-mono); }
.muted { color: var(--fg-3); }
.tnum { font-variant-numeric: tabular-nums; }

/* radio segmented */
.seg { display: inline-flex; padding: 3px; background: var(--bg-2); border-radius: var(--radius-sm); gap: 2px; }
.seg button { border: none; background: transparent; padding: 5px 10px; border-radius: 6px; font-size: 12px; font-weight: 600; color: var(--fg-3); cursor: pointer; }
.seg button.active { background: var(--white); color: var(--fg-1); box-shadow: var(--elev-1); }

/* toast */
.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: var(--black); color: white; padding: 10px 16px; border-radius: var(--radius-pill); font-size: 13px; box-shadow: var(--elev-6); z-index: 200; display: flex; align-items: center; gap: 8px; }

/* inline pill button (filter chips) */
.flag { display: inline-flex; gap: 6px; align-items: center; padding: 4px 10px; border-radius: var(--radius-pill); font-size: 11px; font-weight: 600; cursor: pointer; border: 1px solid var(--border); background: var(--white); color: var(--fg-2); }
.flag.active { background: var(--primary-10); border-color: var(--primary); color: var(--primary); }

/* CodeMirror 5 host fills its container */
.CodeMirror { height: 100% !important; font-family: var(--font-mono) !important; font-size: 13px; }
.CodeMirror-scroll { min-height: 100%; }
.json-editor { font-family: var(--font-mono); font-size: 13px; line-height: 20px; }
.json-gutter {
  flex-shrink: 0;
  padding: 12px 0;
  background: #0B0D11;
  color: #4A5266;
  text-align: right;
  user-select: none;
  overflow: hidden;
  border-right: 1px solid #1F2430;
  width: 56px;
}
.json-ln {
  padding: 0 12px 0 8px;
  font-variant-numeric: tabular-nums;
  height: 20px;
  line-height: 20px;
  font-size: 12px;
}
.json-ln.err { background: rgba(255, 80, 80, 0.18); color: #FF8585; font-weight: 700; }
.json-hl, .json-ta {
  position: absolute;
  top: 0; left: 56px; right: 0; bottom: 0;
  margin: 0;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 20px;
  border: 0;
  overflow: auto;
  tab-size: 2;
  -moz-tab-size: 2;
}
.json-hl {
  pointer-events: none;
  color: #D4D8E1;
  background: transparent;
  z-index: 1;
}
.json-ta {
  background: transparent;
  color: transparent;
  caret-color: #FFD500;
  resize: none;
  outline: none;
  z-index: 2;
}
.json-ta::selection { background: rgba(0,166,209,0.35); color: transparent; }
.json-hl .tk-key    { color: #7DD3FC; }
.json-hl .tk-string { color: #A7F3A0; }
.json-hl .tk-number { color: #FFD27A; }
.json-hl .tk-bool   { color: #C4A6FF; font-weight: 600; }
.json-hl .tk-null   { color: #94A3B8; font-style: italic; }