/* World3 — Explorateur de boucles de rétroaction */

:root {
  --bg: #0b0f14;
  --bg-2: #0e131a;
  --panel: #121821;
  --panel-2: #161d28;
  --line: #232c39;
  --line-soft: #1b232e;
  --ink: #e6edf6;
  --ink-dim: #8b99ac;
  --ink-faint: #5a6678;

  /* variable colors */
  --c-pop: #f5a524;
  --c-cap: #38bdf8;
  --c-pol: #f43f5e;
  --c-res: #34d399;
  --c-agr: #a3e635;

  /* loop polarity */
  --r-color: #f5a524;   /* reinforcing */
  --b-color: #2dd4bf;   /* balancing */
  --dom-glow: #ffffff;

  --font: 'Space Grotesk', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  font-size: 15px;
  line-height: 1.5;
}

body {
  background:
    radial-gradient(900px 500px at 78% -10%, rgba(56,189,248,0.06), transparent 60%),
    radial-gradient(700px 500px at 5% 0%, rgba(245,165,36,0.05), transparent 60%),
    var(--bg);
  min-height: 100vh;
}

/* ===== Topbar ===== */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
  padding: 18px 28px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,0.015), transparent);
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(8px);
}
.brand { display: flex; align-items: center; gap: 14px; }
.logo { width: 34px; height: 34px; color: var(--c-cap); flex-shrink: 0; }
.brand-text h1 {
  margin: 0; font-size: 19px; font-weight: 600; letter-spacing: -0.01em;
}
.brand-text h1 .dim { color: var(--ink-faint); font-weight: 400; }
.subtitle { margin: 2px 0 0; font-size: 12.5px; color: var(--ink-dim); }

.scenarios { display: flex; gap: 8px; flex-wrap: wrap; }
.scn {
  font-family: var(--font);
  font-size: 12.5px; font-weight: 500;
  color: var(--ink-dim);
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 7px 13px; border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s;
}
.scn:hover { color: var(--ink); border-color: #324154; background: var(--panel-2); }
.scn.active { color: #0b0f14; background: var(--ink); border-color: var(--ink); font-weight: 600; }
.scn.ghost { color: var(--ink-faint); }

/* ===== Grid ===== */
.grid {
  display: grid;
  grid-template-columns: 320px 1fr 460px;
  gap: 16px;
  padding: 16px 20px 0;
  align-items: start;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}
.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
  padding: 13px 16px;
  border-bottom: 1px solid var(--line-soft);
  background: rgba(255,255,255,0.012);
}
.panel-head h2 {
  margin: 0; font-size: 13px; font-weight: 600;
  letter-spacing: 0.02em; text-transform: uppercase; color: var(--ink-dim);
}
.hint { font-size: 11.5px; color: var(--ink-faint); }
.mark-legend { display: flex; gap: 14px; margin-top: 6px; flex-wrap: wrap; }
.ml-item { display: flex; align-items: center; gap: 5px; font-size: 10.5px; color: var(--ink-faint); }
.ml-cur { width: 10px; height: 3px; border-radius: 2px; display: inline-block; }
.ml-cur.r { background: var(--r-color); }
.ml-cur.b { background: var(--b-color); }
.ml-ref { width: 0; height: 10px; border-left: 2px dashed #94a3b8; display: inline-block; }

/* ===== Controls ===== */
.controls { max-height: calc(100vh - 110px); overflow-y: auto; }
.controls::-webkit-scrollbar { width: 8px; }
.controls::-webkit-scrollbar-thumb { background: #2a3340; border-radius: 4px; }

.loop-group { border-bottom: 1px solid var(--line-soft); padding: 12px 16px; }
.loop-group:last-child { border-bottom: none; }
.lg-head { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; }
.lg-badge {
  font-family: var(--mono); font-size: 11px; font-weight: 600;
  width: 22px; height: 22px; border-radius: 6px;
  display: grid; place-items: center; flex-shrink: 0;
}
.lg-badge.r { color: var(--r-color); background: rgba(245,165,36,0.12); }
.lg-badge.b { color: var(--b-color); background: rgba(45,212,191,0.12); }
.lg-title { font-size: 13px; font-weight: 600; color: var(--ink); }
.lg-polarity { font-size: 10.5px; color: var(--ink-faint); margin-left: auto; text-transform: uppercase; letter-spacing: 0.03em; }
.lg-short { font-size: 11px; color: var(--ink-faint); line-height: 1.4; margin: 0 0 10px 30px; }

.slider-row { margin: 10px 0 12px; }
.slider-row .sr-top {
  display: flex; align-items: center; gap: 8px; margin-bottom: 3px;
}
.sr-role {
  font-family: var(--mono); font-size: 9px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em;
  padding: 2px 6px; border-radius: 4px; flex-shrink: 0; line-height: 1.4;
}
.sr-role.r { color: var(--r-color); background: rgba(245,165,36,0.1); }
.sr-role.b { color: var(--b-color); background: rgba(45,212,191,0.1); }
.sr-title { font-size: 12.5px; font-weight: 500; color: var(--ink); }
.sr-val { margin-left: auto; display: flex; align-items: baseline; gap: 5px; white-space: nowrap; }
.sr-qual { font-size: 9.5px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em; padding: 2px 5px; border-radius: 4px; }
.sr-qual.low { color: #6b7686; background: rgba(107,118,134,0.14); }
.sr-qual.mid { color: #facc15; background: rgba(250,204,21,0.12); }
.sr-qual.high { color: #fb7185; background: rgba(251,113,133,0.14); }
.sr-main { font-family: var(--mono); font-size: 12.5px; color: var(--ink); font-weight: 500; white-space: nowrap; }
.sr-raw { font-family: var(--mono); font-size: 9.5px; color: var(--ink-faint); }
.sr-help { font-size: 10.5px; color: var(--ink-dim); line-height: 1.4; margin-bottom: 5px; }
.sr-bounds { display: flex; justify-content: space-between; font-size: 9.5px; color: var(--ink-faint); margin-top: 3px; font-style: italic; }

input[type=range] {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 4px; background: #232c39; border-radius: 2px;
  outline: none; cursor: pointer;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--ink); border: 2px solid var(--bg);
  box-shadow: 0 0 0 1px #3a4658;
  position: relative; z-index: 2;
}
input[type=range]::-moz-range-thumb {
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--ink); border: 2px solid var(--bg);
}
.loop-group[data-pol=r] input[type=range]::-webkit-slider-thumb { background: var(--r-color); }
.loop-group[data-pol=b] input[type=range]::-webkit-slider-thumb { background: var(--b-color); }
.loop-group[data-pol=r] input[type=range]::-moz-range-thumb { background: var(--r-color); }
.loop-group[data-pol=b] input[type=range]::-moz-range-thumb { background: var(--b-color); }

/* piste + marque de valeur courante */
.sr-track { position: relative; height: 22px; display: flex; align-items: flex-end; margin-top: 2px; }
.sr-track input[type=range] { margin: 0 0 4px 0; }
.sr-tick {
  position: absolute; bottom: 4px; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center;
  pointer-events: none; z-index: 3; line-height: 1;
}
.sr-tick .sr-tick-val {
  font-family: var(--mono); font-size: 9.5px; font-weight: 600;
  padding: 1px 4px; border-radius: 3px; white-space: nowrap;
  margin-bottom: 1px;
}
.sr-tick .sr-tick-bar { width: 2px; height: 6px; border-radius: 1px; }
.sr-tick.r .sr-tick-val { color: var(--r-color); background: rgba(245,165,36,0.14); }
.sr-tick.r .sr-tick-bar { background: var(--r-color); box-shadow: 0 0 5px var(--r-color); }
.sr-tick.b .sr-tick-val { color: var(--b-color); background: rgba(45,212,191,0.14); }
.sr-tick.b .sr-tick-bar { background: var(--b-color); box-shadow: 0 0 5px var(--b-color); }

/* marque de référence World3 (standard run) — ligne pointillée traversant la piste */
.sr-ref {
  position: absolute; top: 0; bottom: 0; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; justify-content: flex-start;
  pointer-events: none; z-index: 5; line-height: 1;
}
.sr-ref .sr-ref-tag { display: none; }
.sr-ref .sr-ref-bar {
  width: 0; flex: 1; border-left: 2px solid #cbd5e1; opacity: 0.9;
}

/* ===== Chart ===== */
.chart-wrap { display: flex; flex-direction: column; }
.legend { display: flex; gap: 14px; flex-wrap: wrap; }
.legend-item { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--ink-dim); cursor: pointer; user-select: none; }
.legend-item .sw { width: 12px; height: 3px; border-radius: 2px; }
.legend-item.off { opacity: 0.35; text-decoration: line-through; }

.chart-frame { position: relative; padding: 8px 6px 0; }
#chart { width: 100%; height: auto; display: block; }
.readout {
  position: absolute; top: 12px; left: 50px;
  font-family: var(--mono); font-size: 11px; color: var(--ink-faint);
  pointer-events: none;
}

.status-bar {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--line-soft);
  border-top: 1px solid var(--line-soft);
}
.status-item {
  background: var(--panel);
  padding: 11px 14px;
  display: flex; flex-direction: column; gap: 2px;
}
.status-label { font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--ink-faint); }
.status-val { font-family: var(--mono); font-size: 14px; color: var(--ink); font-weight: 500; }

/* ===== Diagram ===== */
.diagram-wrap { max-height: calc(100vh - 110px); overflow-y: auto; }
.diagram-frame { padding: 6px; }
#cld { width: 100%; height: auto; display: block; }

.node circle { fill: var(--bg-2); stroke-width: 1.5; transition: filter 0.15s, stroke-width 0.15s; }
.node:hover circle { filter: brightness(1.18); stroke-width: 2; }
.node text { font-family: var(--font); font-size: 11px; font-weight: 500; fill: var(--ink); text-anchor: middle; }
.node text.sub { font-size: 9px; fill: var(--ink-faint); font-weight: 400; }
.node { cursor: grab; }
#cld.dragging .node { cursor: grabbing; }

/* sous-paramètres (clic droit) */
.sub-cap { font-family: var(--mono); font-size: 9.5px; fill: var(--ink-dim); text-anchor: start; }
.sub-link { stroke: var(--ink-faint); stroke-width: 1; opacity: 0.4; stroke-dasharray: 2 3; }
.sub-node circle { fill: var(--bg); stroke-width: 1.5; }
.sub-node:hover circle { filter: brightness(1.2); }
.sub-code { font-family: var(--mono); font-size: 7.5px; font-weight: 600; fill: var(--ink); text-anchor: middle; }
.sub-name { font-family: var(--font); font-size: 8.5px; fill: var(--ink-dim); }

.link { fill: none; stroke-width: 1.4; opacity: 0.32; }
.link.dom { stroke-width: 2.6; opacity: 1; filter: drop-shadow(0 0 6px currentColor); }
.link.r { stroke: var(--r-color); }
.link.b { stroke: var(--b-color); }

.loop-label { font-family: var(--mono); font-size: 10px; font-weight: 600; opacity: 0.5; }
.loop-label.dom { opacity: 1; }

/* ===== Loop cards ===== */
.loops { padding: 20px 20px 0; }
.loop-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 12px;
  padding: 14px 0 4px;
}
.loop-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  transition: border-color 0.2s, transform 0.2s;
}
.loop-card.dom { border-color: var(--ink); box-shadow: 0 0 0 1px rgba(255,255,255,0.08); }
.lc-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.lc-badge {
  font-family: var(--mono); font-size: 11px; font-weight: 600;
  width: 24px; height: 24px; border-radius: 6px; display: grid; place-items: center; flex-shrink: 0;
}
.lc-badge.r { color: var(--r-color); background: rgba(245,165,36,0.12); }
.lc-badge.b { color: var(--b-color); background: rgba(45,212,191,0.12); }
.lc-title { font-size: 13.5px; font-weight: 600; }
.lc-type { font-size: 10.5px; color: var(--ink-faint); margin-left: auto; text-transform: uppercase; letter-spacing: 0.03em; }
.lc-desc { font-size: 12.5px; color: var(--ink-dim); margin: 0 0 10px; line-height: 1.45; }
.lc-chain { font-family: var(--mono); font-size: 10.5px; color: var(--ink-faint); line-height: 1.5; margin-bottom: 9px; }
.lc-foot { display: flex; justify-content: space-between; align-items: center; font-size: 11px; }
.lc-state {
  font-family: var(--mono); font-size: 11px; padding: 3px 8px; border-radius: 5px;
  background: var(--bg-2); color: var(--ink-dim);
}
.lc-state.amp { color: var(--r-color); background: rgba(245,165,36,0.1); }
.lc-state.damp { color: var(--b-color); background: rgba(45,212,191,0.1); }
.lc-force { font-family: var(--mono); font-size: 11px; color: var(--ink-faint); }
.lc-force b { color: var(--ink); }

/* ===== Footer ===== */
.foot {
  padding: 22px 20px 30px;
  border-top: 1px solid var(--line);
  margin-top: 24px;
}
.foot p { margin: 0; font-size: 11.5px; color: var(--ink-faint); max-width: 90ch; line-height: 1.5; }

/* ===== Responsive ===== */
@media (max-width: 1200px) {
  .grid { grid-template-columns: 300px 1fr; }
  .diagram-wrap { grid-column: 1 / -1; max-height: none; }
}
@media (max-width: 820px) {
  .grid { grid-template-columns: 1fr; padding: 12px; }
  .controls, .diagram-wrap { max-height: none; }
  .status-bar { grid-template-columns: repeat(2, 1fr); }
  .topbar { padding: 14px 16px; }
  .brand-text h1 { font-size: 16px; }
}

/* ===== Infobulles (tooltips) ===== */
.tip {
  position: fixed;
  z-index: 1000;
  pointer-events: none;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 11px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.45);
  font-family: var(--font);
  font-size: 11.5px;
  color: var(--ink);
  max-width: 240px;
  line-height: 1.45;
}
.tip-t { font-family: var(--mono); font-size: 11px; font-weight: 600; color: var(--ink-dim); margin-bottom: 6px; padding-bottom: 5px; border-bottom: 1px solid var(--line); }
.tip-row { display: flex; align-items: center; gap: 7px; padding: 2px 0; }
.tip-sw { width: 9px; height: 9px; border-radius: 2px; flex-shrink: 0; }
.tip-name { flex: 1; color: var(--ink-dim); }
.tip-row b { font-family: var(--mono); font-size: 11.5px; color: var(--ink); }
.tip-code { font-family: var(--mono); font-size: 11px; font-weight: 600; color: var(--ink); margin-bottom: 3px; }
.tip-def { color: var(--ink-dim); font-size: 11px; }