:root {
  /* Palette matched to Permit Assistant so moving between the two apps does not
     feel like leaving the product. Dark is the default; [data-theme="light"]
     overrides only the surface colours, leaving accents identical in both. */
  --bg: #000000;
  --panel: #0a0e1a;
  --panel2: #0d1220;
  --line: rgba(255,255,255,.08);
  --text: #eaf0fb;
  --muted: #8a97b1;
  --soft: #b7c4d1;
  --accent: #22d3ee;
  --accent2: #3b82f6;
  --accent-deep: #8b5cf6;
  --on-accent: #04121a;
  --img-bg: #0d1220;
  --warn: #fbbf24;
  --danger: #f87171;
  --ok: #34d399;
  --radius: 12px;
  --font: "Inter", -apple-system, "Segoe UI", Roboto, system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
}

[data-theme="light"] {
  --bg: #ffffff;
  --panel: #ffffff;
  --panel2: #f1f5f9;
  --line: rgba(15,23,42,.12);
  --text: #0f172a;
  --muted: #566072;
  --soft: #475569;
  --img-bg: #ffffff;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: var(--font); }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: var(--accent); }

.app { max-width: 1280px; margin: 0 auto; padding: 18px 18px 48px; }

.top {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  margin-bottom: 14px;
}
.brand { display: flex; gap: 12px; align-items: center; }
.mark {
  width: 44px; height: 44px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: var(--on-accent); font-weight: 800; display: grid; place-items: center;
}
.top h1 { margin: 0; font-size: 1.25rem; letter-spacing: -0.02em; }
.tag { margin: 2px 0 0; color: var(--muted); font-size: 0.85rem; }
.top-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.commitment {
  background: linear-gradient(90deg, rgba(61,214,198,0.12), rgba(91,141,239,0.08));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 0.88rem;
  color: var(--soft);
  margin-bottom: 16px;
  line-height: 1.45;
}

.layout {
  display: grid;
  grid-template-columns: 180px 1fr 280px;
  gap: 14px;
  align-items: start;
}
@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
}

.steps {
  display: flex; flex-direction: column; gap: 6px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px;
}
.steps button {
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 8px;
}
.steps button.active, .steps button:hover {
  background: var(--panel2);
  color: var(--text);
  border-color: var(--line);
}
.steps button.active { border-color: var(--accent); color: var(--accent); }
.steps a.nav-link {
  display: flex; align-items: center; gap: 8px;
  text-decoration: none; color: var(--text);
  background: var(--panel2); border: 1px solid var(--line);
  padding: 8px 10px; border-radius: 8px; font-weight: 600;
}
.steps a.nav-link:hover { border-color: var(--accent); color: var(--accent); }
.steps a.nav-link .nav-icon { stroke: currentColor; }
.nav-divider { height: 1px; background: var(--line); margin: 4px 2px 2px; }
/* Inline line-icon (modern-symbol replacement for emoji) */
.i { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; vertical-align: -2px; margin-right: 3px; flex: none; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px 12px;
  min-height: 520px;
  display: flex;
  flex-direction: column;
}
.panel h2 { margin: 0 0 12px; font-size: 1.1rem; }
.panel h3 { margin: 16px 0 8px; font-size: 0.9rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.step { flex: 1; }
.step.hidden { display: none; }

.grid2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 12px;
}
@media (max-width: 700px) { .grid2 { grid-template-columns: 1fr; } }

label {
  display: flex; flex-direction: column; gap: 4px;
  font-size: 0.78rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.03em;
}
label.check { flex-direction: row; align-items: center; text-transform: none; letter-spacing: 0; font-size: 0.9rem; color: var(--text); gap: 8px; }
input, select {
  background: var(--panel2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 0.95rem;
  text-transform: none;
  letter-spacing: 0;
  color: var(--text);
}
input:focus, select:focus { outline: 1px solid var(--accent); border-color: var(--accent); }

.primary, .ghost {
  border-radius: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  font-weight: 600;
  font-size: 0.9rem;
}
.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: var(--on-accent);
  border-color: transparent;
}
.ghost { background: var(--panel2); color: var(--text); }
.ghost:hover { border-color: var(--accent); }

.row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.hint { color: var(--muted); font-size: 0.88rem; }
.calc-box {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  font-family: var(--mono);
  font-size: 0.75rem;
  max-height: 280px;
  overflow: auto;
  white-space: pre-wrap;
  color: var(--soft);
  margin-top: 10px;
}

.step-nav {
  display: flex; justify-content: space-between;
  border-top: 1px solid var(--line);
  padding-top: 12px;
  margin-top: 12px;
}

.rail {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-size: 0.88rem;
}
.rail h3 {
  margin: 12px 0 6px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}
.rail h3:first-child { margin-top: 0; }
.snapshot {
  background: var(--panel2);
  border-radius: 8px;
  padding: 10px;
  font-family: var(--mono);
  font-size: 0.75rem;
  line-height: 1.45;
  color: var(--soft);
  min-height: 100px;
}
.plist { list-style: none; margin: 0; padding: 0; }
.plist li {
  padding: 6px 8px;
  border-radius: 6px;
  border: 1px solid var(--line);
  margin-bottom: 6px;
  cursor: pointer;
  font-size: 0.8rem;
}
.plist li:hover { border-color: var(--accent); }
.why { margin: 0; padding-left: 16px; color: var(--muted); font-size: 0.8rem; line-height: 1.45; }
.why li { margin-bottom: 4px; }

.review {
  background: var(--panel2);
  border-radius: 8px;
  padding: 12px;
  font-size: 0.9rem;
  line-height: 1.5;
}
.result {
  margin-top: 12px;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid var(--ok);
  background: rgba(127, 217, 154, 0.08);
}
.result.err { border-color: var(--danger); background: rgba(240, 113, 120, 0.08); }
.result a { font-weight: 700; }
.hidden { display: none !important; }

/* Equipment step */
.equip-block { margin: 14px 0 22px; }
.equip-head {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 8px; margin-bottom: 8px;
}
.equip-head h3 { margin: 0; }
.equip-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.lib-pick {
  max-width: 200px; padding: 7px 10px; background: var(--panel2);
  border: 1px solid var(--line); border-radius: 8px;
}
.upload-btn {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
  padding: 8px 12px; border: 1px dashed var(--accent); border-radius: 8px;
  background: rgba(61, 214, 198, 0.08); color: var(--accent);
  font-size: 0.85rem; font-weight: 600;
}
.upload-btn:hover { background: rgba(61, 214, 198, 0.16); }
.upload-status {
  font-size: 0.82rem; color: var(--muted); margin: 4px 0 10px;
  padding: 8px 10px; background: var(--panel2); border: 1px solid var(--line);
  border-radius: 8px;
}
.upload-status.err { color: var(--danger); border-color: var(--danger); }
.equip-list { display: flex; flex-direction: column; gap: 12px; }
.equip-card {
  background: var(--panel2); border: 1px solid var(--line);
  border-radius: 10px; padding: 12px 14px;
}
.equip-card-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 8px; margin-bottom: 10px;
}
.equip-card-head strong { font-size: 0.95rem; }
.equip-card-actions { display: flex; gap: 6px; }
.mini {
  padding: 5px 10px; font-size: 0.78rem; border-radius: 7px;
  border: 1px solid var(--line); background: var(--panel); color: var(--text);
  cursor: pointer;
}
.mini:hover { border-color: var(--accent); }
.mini.danger { color: var(--danger); }
.mini.danger:hover { border-color: var(--danger); }

/* ---- Equipment library (visual picker) ---- */
.lib-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 10px; margin: 10px 0 4px;
}
.lib-grid.hidden { display: none; }
.lib-card {
  display: flex; flex-direction: column; border: 1px solid var(--line);
  border-radius: 8px; background: var(--panel); overflow: hidden;
}
.lib-thumb {
  height: 110px; display: flex; align-items: center; justify-content: center;
  background: var(--img-bg); border-bottom: 1px solid var(--line);
}
.lib-thumb img { max-width: 100%; max-height: 110px; object-fit: contain; }
.lib-noimg { color: var(--muted); font-size: 12px; }
.lib-body { padding: 8px 10px; flex: 1; }
.lib-label { font-weight: 700; font-size: 13px; }
.lib-specs { font-size: 11.5px; color: var(--muted); margin: 3px 0 5px; }
.lib-pdf { font-size: 11.5px; color: var(--accent); text-decoration: none; }
.lib-pdf:hover { text-decoration: underline; }
.lib-use {
  border: none; border-top: 1px solid var(--line); background: var(--accent);
  color: var(--on-accent); padding: 7px; cursor: pointer; font-weight: 600;
}
.lib-use:hover { filter: brightness(1.08); }