:root, .theme-light { --bg: #f8fafc; --panel: #ffffff; --text: #0f172a; --muted: #475569; --muted-2: #cbd5e1; --accent: #2563eb; --accent-2: #22c55e; --border: #e2e8f0; --graph-bg: #0b1120; --pill-text: #0b1324; --shadow: rgba(0,0,0,0.12); }
.theme-dark { --bg: #0b1120; --panel: #0f172a; --text: #e2e8f0; --muted: #cbd5e1; --muted-2: #334155; --accent: #60a5fa; --accent-2: #34d399; --border: #1f2937; --graph-bg: #0b1224; --pill-text: #e2e8f0; --shadow: rgba(0,0,0,0.4); }

* { box-sizing: border-box; }
body { margin: 0; font-family: "Inter","Segoe UI", system-ui, -apple-system, sans-serif; background: var(--bg); color: var(--text); }
.topbar { position: sticky; top: 0; z-index: 10; background: var(--panel); color: var(--text); padding: 10px 16px 10px; display: flex; flex-direction: column; align-items: stretch; gap: 6px; box-shadow: 0 6px 20px var(--shadow); }
.topbar-row { display: flex; align-items: center; justify-content: flex-start; gap: 12px; width: 100%; }
.topbar .brand { display: flex; flex-direction: column; }
.brand-title { font-weight: 700; font-size: 1.05rem; }
.brand-sub { font-size: 0.9rem; color: var(--muted-2); }
.theme-dark .brand-sub { color: #cbd5e1; }
.brand-tagline { display: flex; flex-direction: column; gap: 2px; padding-right: 10px; }
.brand-tagline .brand-title { font-weight: 700; font-size: 1rem; color: var(--text); }
.brand-tagline .brand-sub { font-size: 0.9rem; color: var(--muted); }
.nav { display: flex; gap: 12px; align-items: center; }
.nav a { color: var(--panel); text-decoration: none; font-weight: 600; font-size: 0.95rem; padding: 4px 6px; border-radius: 6px; }
.nav a:hover { background: rgba(255,255,255,0.1); color: #fff; }
.controls { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 8px 10px; align-items: start; width: 100%; }
.controls label { font-size: 0.9rem; color: var(--text); display: flex; flex-direction: column; gap: 4px; align-items: flex-start; line-height: 1.2; padding-bottom: 2px; }
.controls input, .controls select { border-radius: 6px; border: 1px solid var(--border); padding: 6px 8px; min-width: 130px; background: var(--panel); color: var(--text); box-shadow: 0 1px 4px var(--shadow); width: 100%; font-size: 0.9rem; }
.controls input::placeholder { color: var(--muted); }
.controls button { background: var(--accent-2); color: #0f172a; border: none; border-radius: 6px; padding: 5px 8px; cursor: pointer; box-shadow: 0 2px 6px var(--shadow); font-size: 0.9rem; white-space: nowrap; }
.controls button:hover { filter: brightness(0.95); }
.toggle-inline { color: var(--text); font-size: 0.85rem; display: inline-flex; gap: 6px; align-items: center; flex-wrap: nowrap; line-height: 1.2; white-space: nowrap; min-width: 140px; }
.toggle-inline input { flex-shrink: 0; margin: 0; }
.toggle-inline span { white-space: nowrap; }
.layout { display: grid; grid-template-columns: 300px 1fr; min-height: calc(100vh - 70px); }
.panel { background: var(--panel); border-right: 1px solid var(--border); padding: 16px; color: var(--text); }
.panel h2 { margin-top: 0; }
.panel ul { padding-left: 16px; }
.legend ul { list-style: none; padding-left: 0; margin: 0; }
.legend li { display: flex; align-items: center; gap: 6px; margin: 2px 0; }
.legend-toggle { display: flex; align-items: center; gap: 6px; font-size: 0.9rem; color: var(--text); }
.legend-slider { width: 60px; }
.legend-grey { opacity: 0.25; }
.pill { width: 14px; height: 14px; border-radius: 10px; display: inline-block; }
.pill-concepts { background: #0ea5e9; }
.pill-phenomenes { background: #f97316; }
.pill-meca { background: #10b981; }
.pill-outils { background: #8b5cf6; }
.pill-valid { background: #22c55e; }
.pill-pending { background: #f59e0b; }
.pill-na { background: #94a3b8; }
.tour-buttons { display: flex; flex-direction: column; gap: 6px; margin-top: 6px; }
.tour-buttons button { border: 1px solid var(--border); border-radius: 6px; padding: 8px; background: var(--bg); cursor: pointer; text-align: left; color: var(--text); }
.tour-buttons button:hover { background: var(--border); }
.graph-area { position: relative; background: var(--graph-bg); padding-bottom: 120px; }
#cy { width: 100%; height: calc(100vh - 70px); }
.status { position: absolute; top: 200px; left: 320px; background: rgba(255,255,255,0.9); color: #0f172a; padding: 6px 10px; border-radius: 6px; font-size: 0.9rem; box-shadow: 0 6px 20px var(--shadow); pointer-events: none; z-index: 25; max-width: 320px; }
.theme-dark .status { background: rgba(15,23,42,0.9); color: #e2e8f0; }
.matrix { position: fixed; right: 12px; top: 240px; width: clamp(280px, 30vw, 380px); max-height: 60vh; overflow: hidden; background: rgba(255,255,255,0.95); border-radius: 8px; padding: 8px; box-shadow: 0 10px 30px var(--shadow); transition: all 0.2s ease; backdrop-filter: blur(4px); z-index: 30; cursor: move; color: #0f172a; }
.theme-dark .matrix { background: rgba(15,23,42,0.92); color: #e2e8f0; }
.matrix.collapsed { height: 36px; width: 220px; }
.matrix-header { display: flex; justify-content: space-between; align-items: center; font-weight: 600; }
.matrix select { background: var(--panel); color: var(--text); border: 1px solid var(--border); border-radius: 6px; padding: 4px 6px; }
.matrix option { color: #0f172a; }
.theme-dark .matrix option { color: #e2e8f0; background: #111827; }
.matrix-body { max-height: 50vh; overflow: auto; }
.matrix-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.matrix-table th, .matrix-table td { border: 1px solid var(--border); padding: 6px; text-align: left; }
.matrix-table tbody tr { cursor: pointer; }
.matrix-table tbody tr:hover { background: #f1f5f9; }
.theme-dark .matrix-table tbody tr:hover { background: #1f2937; color: #e2e8f0; }
.floating-controls { position: absolute; top: 140px; left: 10px; display: flex; flex-direction: column; gap: 6px; }
.floating-controls button { width: 34px; height: 34px; border: 1px solid var(--border); border-radius: 6px; background: var(--panel); cursor: pointer; color: var(--text); }
.floating-controls button:hover { background: var(--border); }
.edge-filters { position: fixed; bottom: 12px; left: clamp(260px, 28vw, 420px); background: rgba(255,255,255,0.95); padding: 8px 10px; border-radius: 10px; display: flex; gap: 10px; flex-wrap: wrap; font-size: 0.9rem; box-shadow: 0 8px 24px var(--shadow); align-items: center; cursor: move; z-index: 40; }
.theme-dark .edge-filters { background: rgba(15,23,42,0.95); color: #e2e8f0; }
.edge-filters label { display: flex; align-items: center; gap: 4px; }
.edge-highlight select { border: 1px solid var(--border); border-radius: 6px; padding: 4px 6px; background: var(--panel); color: var(--text); min-width: 120px; }
.theme-dark .edge-highlight select { background: #111827; color: #e2e8f0; border-color: #1f2937; }
.filter-chips { position: absolute; bottom: 10px; right: 10px; display: flex; gap: 6px; flex-wrap: wrap; }
.filter-chips button { border: 1px solid var(--border); border-radius: 12px; padding: 4px 8px; background: var(--panel); cursor: pointer; font-size: 0.85rem; color: var(--text); }
.filter-chips button:hover { background: var(--border); }
.filter-chips .chip-concepts-fondamentaux { background: #e0f2fe; border-color: #0ea5e9; }
.filter-chips .chip-phenomenes { background: #ffedd5; border-color: #f97316; }
.filter-chips .chip-mecanismes-et-processus { background: #dcfce7; border-color: #10b981; }
.filter-chips .chip-outils-analytiques { background: #ede9fe; border-color: #8b5cf6; }
.help-btn { position: absolute; top: 10px; right: 370px; width: 34px; height: 34px; border: 1px solid var(--border); border-radius: 6px; background: var(--panel); cursor: pointer; color: var(--text); }
.help-btn:hover { background: var(--border); }
.modal { padding: 1rem; border: 1px solid var(--border); border-radius: 10px; max-width: 680px; width: 90vw; background: var(--panel); color: var(--text); box-shadow: 0 10px 40px var(--shadow); resize: both; overflow: auto; }
.modal form { position: relative; }
.modal::backdrop { background: rgba(0,0,0,0.35); }
.modal .window-actions { position: absolute; top: 8px; right: 8px; display: flex; gap: 6px; }
.modal .window-actions button { border: 1px solid var(--border); background: var(--bg); color: var(--text); border-radius: 6px; width: 26px; height: 26px; cursor: pointer; }
.modal.minimized { height: 54px; overflow: hidden; }
.modal.maximized { width: min(1100px, 95vw); height: 80vh; left: 50% !important; top: 50% !important; transform: translate(-50%, -50%); }
.btn-secondary { margin-top: 4px; padding: 6px 10px; border: 1px solid var(--border); border-radius: 6px; background: var(--panel); cursor: pointer; color: var(--text); font-size: 0.9rem; }
.btn-secondary:hover { background: var(--border); }
.btn-apply { margin-top: 4px; padding: 6px 10px; border: 1px solid #38bdf8; border-radius: 6px; background: #e0f2fe; color: #0b1324; box-shadow: 0 4px 12px var(--shadow); cursor: pointer; font-size: 0.9rem; }
.btn-apply:hover { background: #bae6fd; }
.slider-inline { display: flex; align-items: center; gap: 10px; color: var(--text); font-size: 0.9rem; margin-top: 4px; }
.slider-inline + .slider-inline { margin-left: 8px; }
.slider-inline input[type="range"] { accent-color: #38bdf8; width: 120px; }
.footer { padding: 12px 16px; background: #0f172a; color: #cbd5e1; font-size: 0.9rem; text-align: center; }
.theme-dark header, .theme-dark footer, .theme-dark .topbar { background: #0b1224 !important; color: #e2e8f0; }
.theme-dark header a, .theme-dark footer a { color: #e2e8f0 !important; }
.theme-dark .controls label,
.theme-dark .controls input,
.theme-dark .controls select,
.theme-dark .toggle-inline { color: #e2e8f0; }
.theme-dark .controls input,
.theme-dark .controls select { background: #111827; border-color: #1f2937; }
.theme-dark .controls button { color: #0f172a; }
.faded { opacity: 0.08; }
.node-action-menu { position: absolute; background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 8px; box-shadow: 0 10px 30px var(--shadow); display: flex; flex-direction: column; gap: 6px; z-index: 50; min-width: 180px; }
.node-action-menu.hidden { display: none; }
.node-action-menu button { border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--text); padding: 6px 8px; text-align: left; cursor: pointer; }
.node-action-menu button:hover { background: var(--border); }
.node-radial-menu { position: absolute; display: none; pointer-events: auto; width: 200px; height: 200px; border-radius: 50%; justify-content: center; align-items: center; gap: 4px; flex-wrap: wrap; padding: 16px; background: rgba(0,0,0,0.08); backdrop-filter: blur(4px); z-index: 60; }
.node-radial-menu.active { display: flex; }
.node-radial-menu button { width: 80px; height: 32px; border: 1px solid var(--border); border-radius: 8px; background: var(--panel); color: var(--text); font-size: 0.8rem; cursor: pointer; box-shadow: 0 6px 20px var(--shadow); }
.node-radial-menu button:hover { background: var(--border); }
.info-tooltip { position: absolute; min-width: 200px; max-width: 320px; background: var(--panel); color: var(--text); border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; box-shadow: 0 12px 30px var(--shadow); z-index: 70; pointer-events: none; }
.info-tooltip.hidden { display: none; }
@media (max-width: 960px) {
  .layout { grid-template-columns: 1fr; }
  #cy { height: 60vh; }
  .help-btn { right: 10px; top: 60px; }
  .nav { display: none; }
  .edge-filters, .filter-chips { position: static; margin: 8px 10px 0; }
  .floating-controls { top: auto; bottom: 10px; left: 10px; flex-direction: row; }
  .matrix { position: static; width: auto; max-height: none; margin: 10px; }
  .controls { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
}