/* ═══════════════════════════════════════════
   mixer.css — Mixer BIM Coordination UI
   Dark theme · @thatopen/ui integration
   ═══════════════════════════════════════════ */

/* ─── @thatopen/ui Theme Variables ─────── */
/* CHARTE RESTAURÉE = v1 de Mixer (Design system chocolat).
   Référence : mixer-standalone-old/frontend/css/mixer.css
   Fonds : #1c1410 / #241c16 / #2d221a / #35281e
   Accent : orange #d97706 — vert canard #1a3320
   Texte : #f5f0e8 (clair chaud, PAS de gris froid/beige)
   Police : Inter · base 15px */
:root,
.bim-ui-dark {
  --bim-ui_bg-base: #1c1410 !important;
  --bim-ui_bg-contrast-100: #0d0a08 !important;
  --bim-ui_bg-contrast-90:  #241c16 !important;
  --bim-ui_bg-contrast-80:  #f5f0e8 !important; /* texte clair (charte v1) */
  --bim-ui_bg-contrast-70:  #241c16 !important;
  --bim-ui_bg-contrast-60:  #2d221a !important;
  --bim-ui_bg-contrast-50:  #35281e !important;
  --bim-ui_bg-contrast-40:  #423326 !important;
  --bim-ui_bg-contrast-30:  #523f2d !important;
  --bim-ui_bg-contrast-20:  #35281e !important;
  --bim-ui_bg-contrast-10:  #423326 !important;
  --bim-ui_bg-contrast-5:   rgba(245,240,232,0.05) !important;
  --bim-ui_bg-contrast:     #f5f0e8 !important;
  --bim-ui_bg-main: #0d0a08 !important;
  --bim-ui_bg-soft:  #241c16 !important;
  --bim-ui_bg-medium: #2d221a !important;
  --bim-ui_bg-hard:  #35281e !important;
  --bim-ui_size-base: 6px !important;
  --bim-ui_size-md: 8px !important;
  /* accent orange */
  --bim-ui_accent-base: #d97706 !important;
  --bim-ui_accent-soft: rgba(217,119,6,0.1) !important;
  --bim-ui_accent-medium: rgba(217,119,6,0.3) !important;
  /* vert canard (charte v1) pour états actifs neutres */
  --bim-ui_accent-secondary: #1a3320 !important;
  --bim-ui_text-contrast: #f5f0e8 !important;
  --bim-ui_text-muted: #b39d86 !important;
  /* override button primary to orange */
  --bim-button--bg: var(--bim-ui_bg-soft) !important;
  --bim-button--bg-hover: #2d221a !important;
  --bim-button--bg-active: #35281e !important;
  --bim-button--color: var(--bim-ui_text-contrast) !important;
}

/* ─── Retirer le logo ThatOpen (branding) injecté en bas à gauche ─── */
[data-thatopen-logo] { display: none !important; }

/* ─── Custom variables (charte v1 restaurée) ─── */
:root {
  --bg-deepest: #0d0a08;
  --bg-surface: #1c1410;
  --bg-elevated: #241c16;
  --bg-hover: #2d221a;
  --bg-active: #35281e;
  --bg-input: #241c16;
  --bg-toolbar: rgba(36,28,22,0.72);
  --border-dim: #3a2c1e;
  --border-bright: #4d3c2a;
  --text-primary: #f7f2ea;
  --text-secondary: #d8c7b3;
  --text-muted: #b39d86;
  --text-dim: #9a8878;
  --accent-orange: #d97706;
  --accent-orange-bright: #f59e0b;
  --accent-orange-dim: #92400e;
  --teal: #1a3320;
  --red: #ef4444;
  --amber: #f59e0b;
  --blue: #3b82f6;
  --green: #10b981;
  --gray: #6b7280;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 10px;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 24px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
  --sidebar-width: 280px;
  --right-panel-width: 320px;
  --topbar-height: 44px;
  --bottombar-height: 36px;
}

/* ─── Reset ─────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  height: 100%; overflow: hidden;
  font-family: var(--font-sans);
  font-size: 0.9375rem; /* 15px — base charte v1 */
  color: var(--text-primary);
  background: var(--bg-deepest);
  -webkit-font-smoothing: antialiased;
}
input, select, textarea, button { font-family: inherit; font-size: inherit; }
a { color: var(--accent-orange); text-decoration: none; }
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-dim); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-bright); }

/* ─── Layout Grid ───────────────────────── */
.mixer-shell {
  display: grid;
  height: 100vh;
  grid-template-rows: var(--topbar-height) 1fr var(--bottombar-height);
  grid-template-columns: var(--sidebar-width) 1fr var(--right-panel-width);
  grid-template-areas:
    "topbar  topbar  topbar"
    "sidebar viewer  rightpanel"
    "bottombar bottombar bottombar";
}
.mixer-shell.right-collapsed {
  grid-template-columns: var(--sidebar-width) 1fr 0px;
}
.mixer-shell.sidebar-collapsed {
  grid-template-columns: 0px 1fr var(--right-panel-width);
}
.mixer-shell.dual-collapsed {
  grid-template-columns: 0px 1fr 0px;
}

/* ─── Top Bar ───────────────────────────── */
.topbar {
  grid-area: topbar;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0 var(--space-md);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-dim);
  z-index: 100;
  user-select: none;
}
.topbar-brand {
  display: flex; align-items: center; gap: var(--space-sm);
  font-weight: 700; font-size: 16px; color: var(--accent-orange);
  min-width: 120px;
}
.topbar-brand svg { width: 22px; height: 22px; }
.topbar-center {
  flex: 1; display: flex; align-items: center; gap: var(--space-sm);
  justify-content: center;
}
.topbar-right {
  display: flex; align-items: center; gap: var(--space-sm);
  min-width: 120px; justify-content: flex-end;
}
.topbar-sep {
  width: 1px; height: 18px; background: var(--border-dim);
}

/* ─── @thatopen/ui buttons in topbar ───── */
.topbar bim-button {
  --bim-button--h: 30px;
}
.topbar bim-button[disabled] {
  opacity: 0.4;
}

/* ─── Left Sidebar (bim-panel container) ─ */
.sidebar {
  grid-area: sidebar;
  display: flex; flex-direction: column;
  background: var(--bg-surface);
  border-right: 1px solid var(--border-dim);
  overflow: hidden;
}
.sidebar bim-panel {
  flex: 1;
  border-radius: 0;
  --bim-panel--body-padding: 0;
  overflow: hidden;
}

/* ─── Drop Zone (inside bim-panel-section) */
.dropzone {
  margin: 0;
  padding: var(--space-lg) var(--space-md);
  border: 2px dashed var(--border-dim);
  border-radius: var(--radius-md);
  text-align: center; cursor: pointer; transition: all 0.15s;
}
.dropzone:hover, .dropzone.dragover {
  border-color: var(--accent-orange); background: rgba(217,119,6,0.08);
}
.dropzone-icon { font-size: 24px; color: var(--text-muted); margin-bottom: var(--space-xs); }
.dropzone-text { font-size: 12px; color: var(--text-secondary); }
.dropzone-hint { font-size: 10px; color: var(--text-dim); margin-top: 4px; }
.dropzone input[type="file"] { display: none; }

/* ─── File Tree ─────────────────────────── */
.file-tree { list-style: none; }
.file-tree-item {
  display: flex; align-items: center; gap: var(--space-xs);
  padding: 5px var(--space-md); cursor: pointer;
  border-left: 3px solid transparent; transition: all 0.1s;
}
.file-tree-item:hover { background: var(--bg-hover); }
.file-tree-item.active { background: var(--bg-active); border-left-color: var(--accent-orange); }
.file-tree-item .vis-toggle {
  width: 14px; height: 14px; flex-shrink: 0; cursor: pointer;
  border-radius: 2px; border: 1px solid var(--border-dim);
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-input); color: var(--green); font-size: 9px;
  transition: all 0.1s;
}
.file-tree-item .vis-toggle.hidden { color: var(--text-dim); }
.file-tree-item .file-icon { flex-shrink: 0; color: var(--accent-orange-bright); font-size: 14px; }
.file-tree-item .file-label {
  flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  font-size: 13px;
}
.file-tree-item .file-remove {
  opacity: 0; flex-shrink: 0; width: 16px; height: 16px;
  display: flex; align-items: center; justify-content: center;
  border: none; background: transparent; color: var(--text-dim);
  cursor: pointer; border-radius: 2px; font-size: 10px;
}
.file-tree-item:hover .file-remove { opacity: 1; }
.file-tree-item .file-remove:hover { color: var(--red); background: rgba(239,68,68,0.15); }
.file-empty {
  padding: var(--space-xl) var(--space-md); text-align: center;
  color: var(--text-muted); font-size: 12px;
}

/* ─── 3D Viewer ─────────────────────────── */
.viewer-area {
  grid-area: viewer;
  position: relative; background: var(--bg-deepest);
  overflow: hidden;
}
.viewer-area canvas { display: block; width: 100% !important; height: 100% !important; }
.viewer-placeholder {
  position: absolute; inset: 0; display: flex;
  flex-direction: column; align-items: center; justify-content: center; gap: 8px;
  color: var(--text-muted); pointer-events: none;
  z-index: 1;
}
.viewer-placeholder svg { margin-bottom: 4px; }
.placeholder-text { font-size: 14px; font-weight: 500; color: var(--text-secondary); }
.placeholder-hint { font-size: 11px; color: var(--text-dim); }
.viewer-progress {
  position: absolute; bottom: 0; left: 0; right: 0; z-index: 10;
  background: var(--bg-toolbar); backdrop-filter: blur(8px);
  padding: var(--space-sm) var(--space-md);
  display: flex; align-items: center; gap: var(--space-md);
  border-top: 1px solid var(--border-dim);
}
.viewer-progress .pbar { flex: 1; height: 4px; background: var(--bg-active); border-radius: 2px; overflow: hidden; }
.viewer-progress .pbar-fill { height: 100%; background: var(--accent-orange); transition: width 0.3s; border-radius: 2px; }
.viewer-progress .pbar-label { font-size: 11px; color: var(--text-secondary); white-space: nowrap; }
.viewer-progress[hidden] { display: none; }

/* ─── Viewer Floating Toolbar (bim-toolbar override) ─── */
#viewerToolbar {
  border-radius: var(--radius-lg);
  background: var(--bg-toolbar);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-dim);
  padding: 3px;
}

/* ─── Viewer Right-side Tools (vertical bim-toolbar) ─── */
#viewerVerticalTools {
  border-radius: var(--radius-lg);
  background: var(--bg-toolbar);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-dim);
  padding: 3px;
}
#viewerVerticalTools bim-button {
  --bim-button--h: 34px;
  --bim-button--w: 34px;
}
#viewerVerticalTools bim-toolbar-section {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* ─── Viewer Legend ─────────────────────── */
.viewer-legend {
  position: absolute; bottom: var(--space-lg); left: var(--space-sm);
  z-index: 15; padding: var(--space-sm) var(--space-md);
  background: var(--bg-toolbar); backdrop-filter: blur(8px);
  border: 1px solid var(--border-dim); border-radius: var(--radius-md);
  font-size: 11px; min-width: 100px;
}
.viewer-legend-title { font-weight: 600; color: var(--text-muted); margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.3px; font-size: 10px; }
.viewer-legend-item { display: flex; align-items: center; gap: 6px; padding: 2px 0; color: var(--text-secondary); }
.viewer-legend-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }

/* ─── Right Panel tab bar (bim-button tabs) ─ */
.rightpanel-tabbar {
  display: flex;
  border-bottom: 1px solid var(--border-dim);
  min-height: 34px;
  flex-shrink: 0;
}
.rightpanel-tabbar bim-button {
  flex: 1;
  --bim-button--h: 38px;
  --bim-button--bg: transparent;
  --bim-button--bg-hover: var(--bim-ui_bg-contrast-70);
  --bim-button--bg-active: rgba(217,119,6,0.06);
  --bim-button--color: var(--text-muted);
  --bim-button--border: none;
  --bim-button--radius: 0;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  font-size: 12px;
  font-weight: 500;
}
.rightpanel-tabbar bim-button.active-tab {
  --bim-button--bg: transparent;
  --bim-button--color: var(--accent-orange-bright);
  border-bottom-color: var(--accent-orange);
  background: rgba(217,119,6,0.06);
}

/* ─── Right panel bim-panel container ─── */
.rightpanel {
  grid-area: rightpanel;
  display: flex; flex-direction: column;
  background: var(--bg-surface);
  border-left: 1px solid var(--border-dim);
  overflow: hidden;
}
.rightpanel bim-panel {
  flex: 1;
  border-radius: 0;
  --bim-panel--body-padding: 0;
  overflow: hidden;
}

/* ─── Right panel plugin container ──────── */
.rule-item { display: flex; align-items: center; gap: 6px; padding: 5px 0; border-bottom: 1px solid var(--border-dim); }
.rule-item:last-child { border-bottom: none; }
.rule-text { flex: 1; font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rule-tol { font-size: 10px; color: var(--text-muted); font-family: var(--font-mono); }
.rule-del { flex-shrink: 0; width: 18px; height: 18px; display: flex; align-items: center; justify-content: center; border: none; background: transparent; color: var(--text-dim); cursor: pointer; border-radius: 2px; font-size: 10px; }
.rule-del:hover { color: var(--red); background: rgba(239,68,68,0.15); }

/* ─── Results Overlay ───────────────────── */
.results-overlay {
  position: absolute; bottom: var(--space-sm); right: var(--space-sm);
  width: 380px; max-height: 50vh; z-index: 50;
  display: flex; flex-direction: column;
  background: var(--bg-surface); border: 1px solid var(--border-bright);
  border-radius: var(--radius-lg); box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  overflow: hidden;
}
.results-overlay-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--border-dim);
  font-size: 12px; font-weight: 600;
}
.results-overlay-header .close-btn {
  width: 22px; height: 22px; display: flex; align-items: center; justify-content: center;
  border: none; background: transparent; color: var(--text-muted);
  cursor: pointer; border-radius: 3px;
}
.results-overlay-header .close-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.results-list { flex: 1; overflow-y: auto; padding: 0; }
.result-item {
  display: flex; align-items: center; gap: var(--space-sm);
  padding: 8px var(--space-md); cursor: pointer; border-left: 3px solid transparent;
  transition: all 0.1s; font-size: 13px;
}
.result-item:hover { background: var(--bg-hover); }
.result-item.active { background: var(--bg-active); border-left-color: var(--accent-orange); }
.result-sev {
  width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
}
.result-id { font-family: var(--font-mono); font-size: 11px; color: var(--text-muted); min-width: 60px; }
.result-desc { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text-secondary); }
.result-dist { font-size: 10px; color: var(--text-muted); font-family: var(--font-mono); }

/* ─── Bottom Bar ────────────────────────── */
.bottombar {
  grid-area: bottombar;
  display: flex; align-items: center; gap: var(--space-md);
  padding: 0 var(--space-md);
  background: var(--bg-surface); border-top: 1px solid var(--border-dim);
  font-size: 11px; color: var(--text-muted);
}
.bottombar-item { display: flex; align-items: center; gap: 4px; }
.bottombar-item strong { color: var(--text-secondary); font-weight: 600; }
.bottombar-sep { width: 1px; height: 14px; background: var(--border-dim); }
.status-dot {
  width: 8px; height: 8px; border-radius: 50%; display: inline-block;
}
.status-dot.idle { background: var(--text-dim); }
.status-dot.running { background: var(--accent-orange-bright); animation: pulse 1s infinite; }
.status-dot.done { background: var(--green); }
.status-dot.error { background: var(--red); }
.status-dot.configuring { background: var(--blue); }
@keyframes pulse { 0%,100%{opacity:1;} 50%{opacity:0.4;} }

/* ─── Toast ─────────────────────────────── */
.toast-container {
  position: fixed; top: calc(var(--topbar-height) + var(--space-sm)); left: 50%;
  transform: translateX(-50%); z-index: 999; display: flex;
  flex-direction: column; align-items: center; gap: 4px; pointer-events: none;
}
.toast {
  padding: 6px 14px; border-radius: var(--radius-md);
  font-size: 12px; font-weight: 500; pointer-events: auto;
  backdrop-filter: blur(8px); border: 1px solid;
  animation: toastIn 0.2s ease-out;
}
.toast.success { background: rgba(34,197,94,0.15); border-color: var(--green); color: var(--green); }
.toast.error { background: rgba(239,68,68,0.15); border-color: var(--red); color: var(--red); }
.toast.info { background: rgba(59,130,246,0.15); border-color: var(--blue); color: var(--blue); }
.toast.warning { background: rgba(245,158,11,0.15); border-color: var(--amber); color: var(--amber); }
@keyframes toastIn { from { opacity:0; transform:translateY(-8px); } to { opacity:1; transform:translateY(0); } }

/* ─── Install Banner ────────────────────── */
.install-banner {
  position: fixed; top: 0; left: 0; right: 0; z-index: 900;
  background: var(--accent-orange-dim); color: #fff; padding: 6px var(--space-md);
  display: flex; align-items: center; justify-content: center; gap: var(--space-md);
  font-size: 12px;
}
.install-banner .btn { border-color: #fff; color: #fff; }
.install-banner .btn:hover { background: rgba(255,255,255,0.15); }
.install-banner .close-banner {
  position: absolute; right: var(--space-md); top: 50%; transform: translateY(-50%);
  background: none; border: none; color: #fff; cursor: pointer; font-size: 16px;
  opacity: 0.7;
}

/* ─── Responsive helpers ────────────────── */
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.flex { display: flex; }
.flex-1 { flex: 1; }
.gap-sm { gap: var(--space-sm); }
.mt-sm { margin-top: var(--space-sm); }
.mb-sm { margin-bottom: var(--space-sm); }
.p-sm { padding: var(--space-sm); }

/* ─── Share input ───────────────────────── */
.share-input {
  width: 100%; height: 26px; padding: 0 var(--space-sm); margin-top: 4px;
  background: var(--bg-input); border: 1px solid var(--border-dim);
  border-radius: var(--radius-sm); color: var(--text-secondary);
  font-size: 11px; font-family: var(--font-mono);
}

/* ─── AI Result Block ───────────────────── */
.ai-result {
  font-family: var(--font-mono); font-size: 11px; line-height: 1.4;
  background: var(--bg-input); padding: var(--space-sm); border-radius: var(--radius-sm);
  border: 1px solid var(--border-dim); max-height: 200px; overflow-y: auto;
  white-space: pre-wrap; color: var(--text-secondary);
}

/* ─── Section Plane Controls ────────────── */
.section-ctrl { display: flex; gap: 4px; margin-top: 4px; flex-wrap: wrap; }

/* ─── Plugin Containers ─────────────────── */
.plugin-container { padding: var(--space-sm); }