/* css/app.css */

:root {
  --bg: #0d1014;
  --bg-elev: #161a21;
  --bg-elev-2: #1d222b;
  --bg-elev-3: #262c37;
  --border: #2a3140;
  --border-strong: #3a4254;
  --text: #e6e9ef;
  --text-dim: #8b93a3;
  --text-faint: #5a6273;
  --accent: #5ba2f7;
  --accent-dim: #2c5a99;
  --danger: #f47272;
  --success: #5fce9d;
  --warning: #f0b56a;

  --c-summit: #a78bfa;
  --c-cad: #5ba2f7;
  --c-capture: #5fce9d;
  --c-mixed: #f0b56a;
  --c-osnap: #f47272;
  --c-layer: #ec7cd1;

  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 14px;
  height: 100vh;
  overflow: hidden;
}

.app {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  height: 100vh;
}

/* HEADER */
header {
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.project-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}
.project-controls select { min-width: 220px; font-weight: 500; }
.popover-menu button { height: auto; padding: 8px 10px; }
.logo {
  font-weight: 600;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-mark {
  width: 22px; height: 22px;
  border-radius: 5px;
  background: linear-gradient(135deg, var(--accent), var(--c-summit));
  display: grid; place-items: center;
  font-size: 12px;
  font-weight: 700;
  color: #0d1014;
}
.logo-sub { color: var(--text-dim); font-weight: 400; font-size: 12px; }
.spacer { flex: 1; }

/* BUTTONS */
button, .btn {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0 12px;
  height: 32px;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  font-family: inherit;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background 0.12s, border-color 0.12s;
  white-space: nowrap;
}
button:hover, .btn:hover {
  background: var(--bg-elev-3);
  border-color: var(--border-strong);
}
button.primary, .btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #061425;
  font-weight: 600;
}
button.primary:hover { background: #6db1ff; border-color: #6db1ff; }
button.danger { color: var(--danger); }
button.danger:hover { background: rgba(244, 114, 114, 0.1); border-color: var(--danger); }
button.icon { padding: 0 9px; min-width: 32px; justify-content: center; }
/* SVG icons embedded inside buttons */
.btn-icon, .menu-icon { display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; }
.btn-icon { color: var(--text-dim); }
button.primary .btn-icon { color: inherit; opacity: 0.85; }
button:hover .btn-icon { color: var(--text); }
.menu-icon { width: 16px; height: 16px; color: var(--text-dim); }
.popover-menu button:hover .menu-icon { color: var(--text); }
.popover-menu button.danger .menu-icon { color: var(--danger); }
.modal-header-icon { display: inline-flex; align-items: center; color: var(--accent); margin-right: 6px; }

select, input[type=text], input[type=number], input[type=search] {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0 10px;
  height: 32px;
  border-radius: 6px;
  font-family: inherit;
  font-size: 13px;
  outline: none;
  transition: border-color 0.12s;
}
textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 6px;
  font-family: inherit;
  font-size: 13px;
  outline: none;
  transition: border-color 0.12s;
}
select:hover, input:hover { border-color: var(--border-strong); }
select:focus, input:focus, textarea:focus { border-color: var(--accent); }
textarea {
  resize: vertical;
  font-family: "JetBrains Mono", "Menlo", "Consolas", monospace;
  font-size: 12.5px;
  line-height: 1.5;
}

/* TOOLBAR */
.toolbar {
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13px;
}
.toolbar .group {
  display: flex; align-items: center; gap: 6px;
  position: relative;
  padding-right: 14px;
}
.toolbar .group + .group::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 18px;
  background: var(--border);
  opacity: 0.6;
}
.toolbar .group:last-child { padding-right: 0; }
.toolbar label { color: var(--text-dim); font-size: 12px; }
.stepper { display: inline-flex; align-items: center; }
.stepper input { width: 48px; text-align: center; border-radius: 0; border-left: none; border-right: none; }
.stepper button { border-radius: 6px 0 0 6px; padding: 6px 10px; }
.stepper button:last-child { border-radius: 0 6px 6px 0; }

/* MAIN */
main { display: flex; overflow: hidden; position: relative; }
.grid-area {
  flex: 1;
  overflow: auto;
  padding: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  background:
    radial-gradient(circle at 20% 0%, rgba(91, 162, 247, 0.04), transparent 50%),
    radial-gradient(circle at 80% 100%, rgba(167, 139, 250, 0.04), transparent 50%);
}
.keypad {
  display: grid;
  gap: 8px;
  padding: 18px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
}
.key {
  aspect-ratio: 1;
  min-width: 72px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 6px;
  text-align: center;
  transition: transform 0.08s, border-color 0.12s, background 0.12s;
  position: relative;
  overflow: hidden;
}
.key:hover { transform: translateY(-1px); border-color: var(--border-strong); }
.key.empty { border-style: dashed; color: var(--text-faint); }
.key.empty .plus { font-size: 20px; line-height: 1; color: var(--text-faint); }
.key .label {
  font-size: 12px;
  font-weight: 500;
  line-height: 1.2;
  word-break: break-word;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
}
.key .badge {
  position: absolute;
  top: 5px; right: 5px;
  width: 6px; height: 6px;
  border-radius: 50%;
}
.key .pos {
  position: absolute;
  bottom: 4px; left: 6px;
  font-size: 9px;
  color: var(--text-faint);
  font-family: "JetBrains Mono", monospace;
}
.key.configured { color: var(--text); }
.key.selected {
  outline: 2px solid #5ba2f7;
  outline-offset: -2px;
  box-shadow: 0 0 0 1px rgba(91,162,247,0.5);
}
.key.dragging { opacity: 0.4; }
.key.drop-target { outline: 2px dashed #5fce9d; outline-offset: -2px; }
.key[draggable="true"] { cursor: grab; }
.key[draggable="true"]:active { cursor: grabbing; }
.key.is-header { border-width: 2px; text-transform: uppercase; letter-spacing: 0.04em; }
.key.is-header .label { font-size: 13px; font-weight: 700; }
.key.is-header .badge { display: none; }

.checkbox-row { display: flex; align-items: center; gap: 8px; cursor: pointer; font-weight: 400; }
.checkbox-row input[type="checkbox"] { width: 16px; height: 16px; cursor: pointer; }

.span-controls { display: flex; gap: 16px; align-items: center; }
.span-controls span { display: flex; align-items: center; gap: 6px; color: var(--text-dim); font-size: 12px; }
.span-controls input[type="number"] { width: 56px; }

/* DXF import modal */
.modal-wide .modal, .modal.modal-wide { max-width: 720px; }
.dxf-dropzone {
  border: 1px dashed var(--border-strong);
  border-radius: 8px;
  padding: 20px;
  text-align: center;
  color: var(--text-dim);
  background: var(--bg-elev-2);
  transition: background 0.12s, border-color 0.12s;
}
.dxf-dropzone.dragover { background: var(--bg-elev); border-color: var(--accent, #5ba2f7); }
.link-btn {
  background: none; border: none; color: var(--accent, #5ba2f7);
  text-decoration: underline; cursor: pointer; padding: 0; font: inherit;
}
.dxf-controls {
  display: flex; gap: 12px; align-items: center; flex-wrap: wrap;
  margin: 12px 0 8px;
}
.dxf-controls input[type="search"] {
  flex: 1; min-width: 160px;
}
.dxf-quick { display: flex; gap: 6px; }
.dxf-quick button { font-size: 12px; padding: 4px 8px; }
.dxf-layer-list {
  max-height: 360px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-elev-2);
  padding: 4px 0;
}
.dxf-group { padding: 4px 0; }
.dxf-group-header {
  padding: 6px 12px;
  background: var(--bg-elev);
  position: sticky; top: 0;
  font-size: 12px;
}
.dxf-group-items { padding: 4px 0; }
.dxf-row {
  display: grid;
  grid-template-columns: 18px 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 3px 12px 3px 28px;
  font-size: 12px;
  cursor: pointer;
}
.dxf-row:hover { background: var(--bg-elev); }
.dxf-row-name { font-family: "JetBrains Mono", monospace; }
.dxf-row-meta { color: var(--text-faint); font-size: 11px; }
.dxf-row-meta .dxf-busy { color: #5fce9d; }
.dxf-row-meta .dxf-empty { color: var(--text-faint); font-style: italic; }
.dxf-options {
  display: flex; gap: 16px; align-items: center; margin-top: 12px;
  font-size: 12px;
}
.dxf-options select { padding: 4px 6px; }

/* Bulk selection action bar — appears at bottom-center when selection is non-empty */
.action-bar {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(40px);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.45);
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s, transform 0.15s;
  font-size: 13px;
}
.action-bar.open { opacity: 1; transform: translateX(-50%) translateY(0); pointer-events: auto; }
.action-bar-count { font-weight: 600; }
.action-bar-label { color: var(--text-dim); font-size: 12px; }
.action-bar-divider { width: 1px; height: 18px; background: var(--border); }
.action-bar-swatches { display: flex; gap: 4px; }
.action-bar-swatches .swatch {
  width: 18px; height: 18px; border-radius: 4px; cursor: pointer;
  border: 1px solid rgba(255,255,255,0.1);
}
.action-bar-swatches .swatch:hover { transform: scale(1.15); }
.action-bar button { padding: 5px 10px; font-size: 12px; }
.action-bar-close { padding: 4px 8px !important; background: transparent !important; border: none !important; opacity: 0.7; }
.action-bar-close:hover { opacity: 1; }

/* Template picker */
.template-list { display: flex; flex-direction: column; gap: 6px; max-height: 360px; overflow-y: auto; }
.template-row {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg-elev-2);
}
.template-row.is-template { border-color: rgba(251, 191, 36, 0.4); background: rgba(251, 191, 36, 0.05); }
.template-row-main { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.template-row-name { font-weight: 500; font-size: 13px; }
.template-row-meta { font-size: 11px; color: var(--text-dim); font-family: "JetBrains Mono", monospace; }

/* Template-flag star button — uses an active state when toggled on */
#templateBtn.active { color: #fbbf24; }

/* Popover menu (uses <details> for native click-to-toggle semantics) */
.menu-popover { position: relative; }
.menu-popover > summary {
  list-style: none;
  cursor: pointer;
  user-select: none;
}
.menu-popover > summary::-webkit-details-marker { display: none; }
.menu-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  line-height: 1;
  width: 32px;
  height: 32px;
}
.menu-trigger:hover { background: var(--bg-elev); border-color: var(--border-strong); }
.popover-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 200px;
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  padding: 4px;
  z-index: 50;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.popover-menu button {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background: transparent;
  border: none;
  text-align: left;
  font-size: 13px;
  color: var(--text);
  border-radius: 4px;
  cursor: pointer;
  width: 100%;
}
.popover-menu button:hover { background: var(--bg-elev-2); }
.popover-menu button.danger { color: #f47272; }
.popover-menu button.danger:hover { background: rgba(244, 114, 114, 0.12); }
.popover-menu .menu-icon { width: 16px; display: inline-flex; justify-content: center; font-size: 14px; }
.popover-divider { height: 1px; background: var(--border); margin: 4px 0; }

/* Macro lint */
.lint-list { display: none; flex-direction: column; gap: 4px; margin-top: 8px; }
.lint-item {
  display: flex; align-items: flex-start; gap: 6px;
  font-size: 11px; line-height: 1.4;
  padding: 6px 8px; border-radius: 4px;
}
.lint-warn { background: rgba(244, 114, 114, 0.12); color: #f47272; border: 1px solid rgba(244, 114, 114, 0.3); }
.lint-info { background: rgba(91, 162, 247, 0.08); color: var(--text-dim); border: 1px solid rgba(91, 162, 247, 0.2); }
.lint-icon { flex-shrink: 0; font-weight: 700; }
#statusInfo.has-lint-warn { color: #f47272; }

/* SIDE PANEL */
.side {
  position: absolute;
  top: 0;
  right: 0;
  height: 100%;
  width: 380px;
  background: var(--bg-elev);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.2s ease;
  z-index: 10;
  box-shadow: -8px 0 24px rgba(0, 0, 0, 0.3);
}
.side.open { transform: translateX(0); }
.side header {
  background: transparent;
  border-bottom: 1px solid var(--border);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.side-title { font-weight: 600; }
.side-pos { color: var(--text-dim); font-size: 12px; font-family: "JetBrains Mono", monospace; }
.side-body { flex: 1; overflow-y: auto; padding: 18px 20px; }
.field { margin-bottom: 16px; }
.field label {
  display: block;
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
  font-weight: 600;
}
.field input[type=text], .field textarea, .field select { width: 100%; }

.color-swatch-row { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; }
.swatch {
  aspect-ratio: 1;
  border-radius: 6px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.08s;
}
.swatch:hover { transform: scale(1.08); }
.swatch.selected { border-color: var(--text); }

.examples {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-dim);
}
.examples .ex-title {
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.ex-item {
  font-family: "JetBrains Mono", monospace;
  font-size: 11.5px;
  color: var(--text);
  padding: 2px 0;
  cursor: pointer;
}
.ex-item:hover { color: var(--accent); }
.ex-desc { color: var(--text-dim); font-family: inherit; font-size: 11px; }

.side-footer {
  border-top: 1px solid var(--border);
  padding: 12px 20px;
  display: flex;
  gap: 8px;
  justify-content: space-between;
}

/* STATUS BAR */
.status {
  background: var(--bg-elev);
  border-top: 1px solid var(--border);
  padding: 8px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: var(--text-dim);
}
.status .legend { display: flex; align-items: center; gap: 12px; }
.status .legend-item { display: flex; align-items: center; gap: 5px; }
.status .legend-dot { width: 8px; height: 8px; border-radius: 50%; }

/* MODAL */
.modal-bg {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.modal-bg.open { display: flex; }
.modal {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  width: 480px;
  max-width: 90vw;
  box-shadow: var(--shadow-lg);
}
.modal header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: transparent;
  font-weight: 600;
}
.modal .modal-body { padding: 18px 20px; }
.modal footer {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.export-text {
  width: 100%;
  height: 380px;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
}

/* TOAST */
.toast {
  position: fixed;
  bottom: 60px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--bg-elev-3);
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 10px 18px;
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 200;
  font-size: 13px;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* SCROLLBAR */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-strong); }

/* Empty-project banner — shown above the grid when no buttons are configured */
.empty-banner {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 18px;
  margin-bottom: 12px;
  background: linear-gradient(180deg, rgba(91, 162, 247, 0.12), rgba(91, 162, 247, 0.06));
  border: 1px solid rgba(91, 162, 247, 0.35);
  border-radius: 10px;
}
.empty-banner-icon { font-size: 28px; line-height: 1; }
.empty-banner-text { flex: 1; }
.empty-banner-text strong { display: block; margin-bottom: 4px; font-size: 14px; }
.empty-banner-text p { color: var(--text-dim); font-size: 12px; margin: 0; line-height: 1.4; }
.empty-banner-actions { display: flex; gap: 6px; flex-wrap: wrap; }
@media (max-width: 900px) {
  .empty-banner { flex-direction: column; align-items: flex-start; }
}

.empty-state { text-align: center; color: var(--text-dim); padding: 60px 20px; }
.empty-state h3 { color: var(--text); margin-bottom: 8px; }

/* AI GENERATE SECTION */
.ai-section {
  background:
    radial-gradient(circle at 0% 0%, rgba(91, 162, 247, 0.08), transparent 60%),
    radial-gradient(circle at 100% 100%, rgba(167, 139, 250, 0.08), transparent 60%),
    var(--bg-elev-2);
  border: 1px solid rgba(91, 162, 247, 0.25);
  border-radius: 10px;
  padding: 14px;
  margin-bottom: 20px;
}
.ai-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.ai-icon {
  background: linear-gradient(135deg, var(--accent), var(--c-summit));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-size: 14px;
}
.ai-sub {
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 10px;
  line-height: 1.4;
}
.ai-section textarea {
  width: 100%;
  min-height: 64px;
  margin-bottom: 10px;
  font-family: inherit;
  font-size: 13px;
}
.ai-btn {
  background: linear-gradient(135deg, var(--accent), var(--c-summit));
  border: none;
  color: white;
  font-weight: 600;
  width: 100%;
  padding: 9px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-family: inherit;
  transition: opacity 0.12s, transform 0.08s;
}
.ai-btn:hover:not(:disabled) { opacity: 0.92; }
.ai-btn:active:not(:disabled) { transform: translateY(1px); }
.ai-btn:disabled { opacity: 0.5; cursor: wait; }
.ai-status {
  margin-top: 8px;
  font-size: 12px;
  min-height: 16px;
  line-height: 1.4;
}
.ai-status.success { color: var(--success); }
.ai-status.error { color: var(--danger); }
.ai-suggestions { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.ai-chip {
  font-size: 11.5px;
  padding: 4px 9px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  color: var(--text-dim);
  transition: background 0.12s, color 0.12s;
}
.ai-chip:hover { background: rgba(255, 255, 255, 0.08); color: var(--text); }
.spinner {
  display: inline-block;
  width: 12px; height: 12px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin-right: 6px;
  vertical-align: -2px;
}
@keyframes spin { to { transform: rotate(360deg); } }