/* NEXOS v3.0 — Master-Detail SVG + Arborescence */
:root {
  --bg: #06060f;
  --surface: rgba(6,6,15,0.4);
  --border: rgba(255,255,255,0.08);
  --text: #e4e4ef;
  --text2: #8888aa;
  --text3: #555570;
  --accent: #6366f1;
  --ph0: #3b82f6; --ph1: #8b5cf6; --ph2: #f59e0b;
  --ph3: #10b981; --ph4: #eab308; --ph5: #ef4444;
  --tool: #06b6d4; --soic: #a78bfa; --conv: #f472b6;
  --update: #14b8a6; --know: #818cf8; --loi: #fb923c;
  --tmpl: #34d399;
  --font: system-ui, -apple-system, sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', monospace;
}
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: var(--font); background: var(--bg);
  color: var(--text); height: 100vh; overflow: hidden;
}
body::before {
  content: ''; position: fixed; inset: 0; z-index: -1;
  background: radial-gradient(ellipse at 20% 0%, rgba(99,102,241,.07) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 100%, rgba(139,92,246,.05) 0%, transparent 60%);
}

/* ── APP GRID ──────────────────────────────── */
#app {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto 1fr;
  height: 100vh;
}
#main {
  display: grid;
  grid-template-columns: 3fr 2fr;
  height: calc(100vh - 48px);
  overflow: hidden;
}
#diagram-panel {
  overflow: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: opacity .15s ease;
}
#diagram-panel.view-fade { opacity: 0; }
#detail-panel {
  overflow-y: auto;
  border-left: 1px solid var(--border);
  padding: 1rem;
  background: var(--surface);
}

/* ── BREADCRUMB ────────────────────────────── */
.breadcrumb {
  position: sticky; top: 0; z-index: 100;
  background: rgba(6,6,15,.92); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: .65rem 1rem; display: flex; align-items: center;
  gap: .35rem; flex-wrap: wrap; min-height: 48px;
  grid-column: 1 / -1;
}
.crumb {
  font-size: .8rem; color: var(--text2); cursor: pointer;
  padding: .2rem .5rem; border-radius: 6px; transition: all .25s;
  white-space: nowrap; display: inline-flex; align-items: center; gap: .25rem;
}
.crumb:hover { color: var(--text); background: rgba(255,255,255,.05); }
.crumb.current { color: var(--accent); font-weight: 600; cursor: default; }
.crumb.current:hover { background: none; }
.crumb-sep { color: var(--text3); font-size: .7rem; user-select: none; }

/* ── HERO (macro view) ─────────────────────── */
.hero { text-align: center; padding: 1.5rem 0 .5rem; width: 100%; }
.hero-logo {
  width: clamp(100px, 18vw, 160px); height: auto;
  margin: 0 auto .5rem; display: block;
  filter: drop-shadow(0 0 24px rgba(99,102,241,.2));
  transition: filter .3s ease;
}
.hero-logo:hover { filter: drop-shadow(0 0 32px rgba(99,102,241,.4)); }
.hero h1 {
  font-size: clamp(1.4rem, 3.5vw, 2rem); font-weight: 800;
  background: linear-gradient(135deg, #fff, var(--accent), var(--ph1));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero .tagline { color: var(--text2); font-size: .85rem; margin-top: .3rem; }
.hero-stats {
  display: flex; justify-content: center; gap: 1.2rem;
  flex-wrap: wrap; margin-top: 1rem;
}
.stat { text-align: center; }
.stat .val {
  font-size: 1.5rem; font-weight: 800; display: block;
  background: linear-gradient(135deg, var(--accent), var(--ph1));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat .lbl { font-size: .65rem; color: var(--text3); text-transform: uppercase; letter-spacing: .05em; }

/* ── LEVEL HEADER ──────────────────────────── */
.level-header { text-align: center; padding: 1rem 0 .5rem; width: 100%; }
.level-header h1 {
  font-size: clamp(1.1rem, 3vw, 1.5rem); font-weight: 800; line-height: 1.2;
}
.level-header h1 .icon { margin-right: .3rem; }
.level-header .sub { color: var(--text2); font-size: .8rem; margin-top: .2rem; }
.level-header .color-bar { height: 3px; width: 50px; border-radius: 2px; margin: .5rem auto 0; }

/* ── SVG CANVAS ────────────────────────────── */
.svg-wrap { width: 100%; overflow-x: auto; padding: .25rem 0; display: flex; justify-content: center; }
.svg-wrap svg { display: block; }
.click-hint {
  text-align: center; padding: .4rem 0; font-size: .72rem;
  color: var(--text3); font-style: italic;
}

/* ── SVG INTERACTIVE NODES ─────────────────── */
svg .node { cursor: pointer; transition: opacity .3s ease; }
svg .node > rect, svg .node > circle, svg .node > polygon {
  transition: stroke-width .25s, filter .25s;
}
svg .node:hover > rect, svg .node:hover > circle, svg .node:hover > polygon {
  stroke-width: 2.5;
  filter: brightness(1.2);
}
svg .node:hover {
  filter: drop-shadow(0 0 12px rgba(99,102,241,.3));
}
svg .node.node-highlight { cursor: crosshair; }
svg .node:focus { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
svg .node:focus:not(:focus-visible) { outline: none; }
svg text { pointer-events: none; font-family: var(--font); }

/* SVG highlight states */
svg .node.selected > rect, svg .node.selected > polygon, svg .node.selected > circle {
  stroke-width: 3 !important;
}
svg .node.selected {
  filter: drop-shadow(0 0 18px var(--glow-color, rgba(99,102,241,.5))) !important;
  opacity: 1 !important;
}
svg .node.dimmed {
  opacity: 0.4 !important;
  filter: none !important;
}

/* ── SVG ANIMATED ARROWS ───────────────────── */
@keyframes flowDash { to { stroke-dashoffset: -20; } }
.flow-line { stroke-dasharray: 6 4; animation: flowDash 1s linear infinite; }

/* ── SVG PULSE ─────────────────────────────── */
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .5; } }
.pulse { animation: pulse 1.5s ease-in-out infinite; }

/* ── SVG GATE GLOW ─────────────────────────── */
@keyframes gateGlow {
  0%,100% { filter: drop-shadow(0 0 4px rgba(34,197,94,.2)); }
  50%     { filter: drop-shadow(0 0 12px rgba(34,197,94,.5)); }
}
.gate-glow { animation: gateGlow 2s ease infinite; }

/* ── TREE (details/summary) ────────────────── */
#detail-panel .tree-root { padding: 0; }

details {
  border-left: 1px solid var(--border);
  margin-left: .4rem;
  padding-left: .6rem;
}
details[open] {
  border-left-color: rgba(99,102,241,.25);
}
details > summary {
  cursor: pointer;
  font-size: .82rem;
  font-weight: 600;
  color: var(--text);
  padding: .3rem .4rem;
  border-radius: 6px;
  list-style: none;
  display: flex;
  align-items: center;
  gap: .35rem;
  transition: background .2s;
  user-select: none;
}
details > summary:hover {
  background: rgba(255,255,255,.04);
}
details > summary::before {
  content: '▸';
  font-size: .65rem;
  color: var(--text3);
  transition: transform .2s;
  display: inline-block;
  width: .8rem;
  flex-shrink: 0;
}
details[open] > summary::before {
  transform: rotate(90deg);
}
details > summary::-webkit-details-marker { display: none; }

.tree-icon {
  font-size: .8rem;
  flex-shrink: 0;
}
.tree-children {
  padding: .15rem 0;
}
.tree-leaf {
  padding: .2rem 0 .2rem .6rem;
}
.kv {
  display: flex;
  gap: .5rem;
  padding: .15rem 0;
  font-size: .78rem;
  border-bottom: 1px solid rgba(255,255,255,.02);
}
.kv:last-child { border-bottom: none; }
.k {
  font-weight: 600;
  color: var(--text2);
  min-width: 80px;
  flex-shrink: 0;
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .03em;
}
.v {
  color: var(--text);
  line-height: 1.4;
  word-break: break-word;
}

/* Tree highlight for selected node */
details.tree-selected > summary {
  background: rgba(99,102,241,.12);
  color: var(--accent);
}

/* Tree tags/chips */
.tree-tag {
  display: inline-block;
  padding: .1em .35em;
  border-radius: 4px;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .02em;
  margin-right: .25rem;
}
.tree-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: .3rem;
  margin: .15rem 0;
}
.tree-chip {
  display: inline-flex;
  align-items: center;
  gap: .2rem;
  padding: .15rem .4rem;
  border-radius: 5px;
  font-size: .72rem;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border);
  color: var(--text2);
}

/* Score badge */
.score-badge {
  display: inline-block;
  padding: .1em .4em;
  border-radius: 4px;
  font-size: .7rem;
  font-weight: 700;
  font-family: var(--mono);
}
.score-pass { background: rgba(34,197,94,.15); color: #22c55e; }
.score-warn { background: rgba(245,158,11,.15); color: #f59e0b; }
.score-fail { background: rgba(239,68,68,.15); color: #ef4444; }

/* ── TREE CONTROLS ────────────────────────── */
.tree-controls {
  display: flex; gap: .4rem; padding: 0 0 .5rem; position: sticky; top: 0;
  z-index: 10; background: var(--surface); backdrop-filter: blur(8px);
}
.tree-btn {
  font-size: .68rem; padding: .25rem .5rem; border-radius: 5px; cursor: pointer;
  border: 1px solid var(--border); background: rgba(255,255,255,.03);
  color: var(--text2); font-family: var(--font); transition: all .2s;
}
.tree-btn:hover { background: rgba(255,255,255,.07); color: var(--text); }

/* ── LEGEND ────────────────────────────────── */
.legend {
  display: flex; justify-content: center; gap: .8rem;
  flex-wrap: wrap; padding: .5rem 0; font-size: .68rem; color: var(--text3);
}
.legend-item { display: flex; align-items: center; gap: .25rem; }
.legend-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }

/* ── SEARCH MODAL ─────────────────────────── */
.search-modal { position: fixed; inset: 0; z-index: 1000; display: flex; align-items: flex-start; justify-content: center; padding-top: 15vh; }
.search-modal[hidden] { display: none; }
.search-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,.6); backdrop-filter: blur(4px); }
.search-dialog { position: relative; width: min(560px, 90vw); background: #12121e; border: 1px solid var(--border); border-radius: 12px; box-shadow: 0 20px 60px rgba(0,0,0,.5); overflow: hidden; }
.search-input { width: 100%; padding: .85rem 1rem; padding-right: 3.5rem; font-size: .95rem; background: transparent; border: none; border-bottom: 1px solid var(--border); color: var(--text); font-family: var(--font); outline: none; }
.search-input::placeholder { color: var(--text3); }
.search-kbd { position: absolute; top: .75rem; right: .75rem; font-size: .65rem; padding: .15rem .4rem; border-radius: 4px; border: 1px solid var(--border); color: var(--text3); font-family: var(--mono); background: rgba(255,255,255,.03); }
.search-results { max-height: 340px; overflow-y: auto; padding: .25rem 0; }
.search-results:empty::after { content: 'Tapez pour rechercher...'; display: block; padding: 1rem; color: var(--text3); font-size: .8rem; text-align: center; }
.search-result-group { padding: .2rem .75rem; font-size: .65rem; color: var(--text3); text-transform: uppercase; letter-spacing: .05em; }
.search-result { padding: .5rem .75rem; cursor: pointer; display: flex; align-items: center; gap: .5rem; font-size: .82rem; transition: background .15s; }
.search-result:hover, .search-result.active { background: rgba(99,102,241,.12); }
.search-result .sr-icon { flex-shrink: 0; font-size: .75rem; }
.search-result .sr-label { flex: 1; color: var(--text); }
.search-result .sr-type { font-size: .68rem; color: var(--text3); }
.search-result mark { background: rgba(99,102,241,.3); color: var(--text); border-radius: 2px; padding: 0 .1em; }

/* ── MINI PIPELINE ────────────────────────── */
.mini-pipeline { display: flex; align-items: center; justify-content: center; gap: 0; padding: .5rem 0; }
.mini-pip-dot { width: 8px; height: 8px; border-radius: 50%; border: 1.5px solid var(--text3); background: transparent; transition: all .2s; flex-shrink: 0; }
.mini-pip-dot.active { transform: scale(1.4); border-color: currentColor; background: currentColor; }
.mini-pip-line { width: 18px; height: 2px; background: var(--text3); flex-shrink: 0; opacity: .4; }
.mini-pip-label { font-size: .6rem; color: var(--text3); margin-left: .5rem; }

/* ── EXPORT BTN ───────────────────────────── */
.export-btn { position: absolute; top: .5rem; right: .5rem; font-size: .7rem; padding: .3rem .5rem; border-radius: 6px; border: 1px solid var(--border); background: rgba(255,255,255,.04); color: var(--text2); cursor: pointer; font-family: var(--font); transition: all .2s; z-index: 5; }
.export-btn:hover { background: rgba(255,255,255,.08); color: var(--text); }

/* ── BACK BTN ─────────────────────────────── */
.back-btn { display: inline-flex; align-items: center; gap: .25rem; font-size: .72rem; padding: .25rem .5rem; border-radius: 5px; border: 1px solid var(--border); background: rgba(255,255,255,.03); color: var(--text2); cursor: pointer; font-family: var(--font); transition: all .2s; margin-left: .5rem; }
.back-btn:hover { background: rgba(255,255,255,.07); color: var(--text); }

/* ── MODE CHIPS ───────────────────────────── */
.mode-chips { display: flex; justify-content: center; gap: .4rem; flex-wrap: wrap; margin-top: .75rem; }
.mode-chip { display: inline-block; padding: .25rem .6rem; border-radius: 20px; font-size: .7rem; font-family: var(--mono); border: 1px solid var(--border); color: var(--text3); cursor: default; transition: all .2s; }
.mode-chip.active { background: rgba(99,102,241,.15); border-color: var(--accent); color: var(--accent); font-weight: 600; }
.mode-chip[title]:hover { background: rgba(255,255,255,.04); }

/* ── HERO DESC ────────────────────────────── */
.hero-desc { max-width: 600px; margin: .75rem auto 0; font-size: .82rem; color: var(--text2); line-height: 1.5; text-align: center; }

/* ── FOOTER ───────────────────────────────── */
.app-footer { text-align: center; font-size: .7rem; color: var(--text3); padding: 1rem 0; border-top: 1px solid var(--border); margin-top: .5rem; }
.app-footer a { color: var(--accent); text-decoration: none; }
.app-footer a:hover { text-decoration: underline; }

/* ── SCROLLBAR ─────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,.08); border-radius: 3px; }
* { scrollbar-width: thin; scrollbar-color: rgba(255,255,255,.08) transparent; }

/* ── REDUCED MOTION ───────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .flow-line { animation: none; }
  .pulse { animation: none; }
  .gate-glow { animation: none; }
  svg .node, svg .node > rect, svg .node > circle, svg .node > polygon,
  details > summary, details > summary::before { transition: none; }
}

/* ── RESPONSIVE ────────────────────────────── */
@media (max-width: 900px) {
  .search-modal { padding-top: 5vh; }
  .search-dialog { width: 95vw; }
  .mini-pipeline { overflow-x: auto; justify-content: flex-start; padding: .5rem .5rem; }
  #main {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr auto;
  }
  #detail-panel {
    border-left: none;
    border-top: 1px solid var(--border);
    max-height: 50vh;
  }
  #diagram-panel { min-height: 50vh; }
  .svg-wrap svg { min-width: 700px; }
  .hero-logo { width: 90px; }
  .hero h1 { font-size: 1.3rem; }
  .hero-stats { gap: .8rem; }
  .stat .val { font-size: 1.2rem; }
}
@media (max-width: 600px) {
  .breadcrumb { padding: .5rem .6rem; }
  #diagram-panel { padding: .5rem; }
  #detail-panel { padding: .5rem; }
}