/* ArchMap — dark is the tool's native register (graph canvas, dev ambient);
   light is a first-class alternative, true neutral (no cream tint).
   Glass is reserved for floating chrome over the map canvas: topbar, sidebar,
   overlays, toast — never decorative card blur. */

:root {
  color-scheme: dark;
  --bg: #0f0f0f;
  --bg-glow: #171717;
  --panel: #161616;
  --panel-2: #1c1c1c;
  --border: #2a2a2a;
  --border-strong: #3a3a3a;
  --text: #e8e8e8;
  --text-soft: #c9c9c9;
  --muted: #9a9a9a;
  --accent: #f5b942;
  --accent-ink: #111111;
  --accent-text: #f5b942;
  --accent-2: #ff7a45;

  /* graph palette (read by render.js at draw time — keep 6-digit hex) */
  --client: #4ea1ff;
  --route: #7bd389;
  --service: #c792ea;
  --db: #ffb86b;
  --external: #ff6b9d;
  --critical: #ff3860;
  --neutral: #8a8a8a;
  --node-fill: #181818;
  --edge-normal: #555555;

  /* glass chrome */
  --glass: rgba(20, 20, 20, 0.72);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);

  --focus: #4ea1ff;
  --z-sticky: 10;
  --z-backdrop: 40;
  --z-modal: 50;
  --z-toast: 60;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

[data-theme="light"] {
  color-scheme: light;
  --bg: #f2f3f5;
  --bg-glow: #e9ebee;
  --panel: #ffffff;
  --panel-2: #f6f7f8;
  --border: #d8dbdf;
  --border-strong: #c3c7cd;
  --text: #17191c;
  --text-soft: #33373d;
  --muted: #565c66;
  --accent: #f5b942;
  --accent-ink: #171102;
  --accent-text: #7d5a00;
  --accent-2: #c2410c;

  --client: #1667c9;
  --route: #1e7d3f;
  --service: #7c3aed;
  --db: #b45309;
  --external: #be2f5b;
  --critical: #d61f45;
  --neutral: #6b7280;
  --node-fill: #ffffff;
  --edge-normal: #9aa1aa;

  --glass: rgba(255, 255, 255, 0.72);
  --glass-border: rgba(23, 25, 28, 0.08);
  --glass-shadow: 0 12px 40px rgba(23, 25, 28, 0.12);

  --focus: #1667c9;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.55;
  transition: background 0.25s var(--ease-out), color 0.25s var(--ease-out);
}
a { color: var(--client); text-decoration: none; }
a:hover { text-decoration: underline; }
code { background: var(--panel-2); padding: 1px 5px; border-radius: 4px; font-size: 0.9em; }
h1, h2, h3 { text-wrap: balance; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 6px; }

button {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  transition: border-color 0.15s var(--ease-out), background 0.15s var(--ease-out), transform 0.15s var(--ease-out);
}
button:hover { border-color: var(--border-strong); }
button:active { transform: scale(0.98); }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 700; }
button.primary:hover { filter: brightness(1.07); }
button.ghost { background: transparent; }
button.ai-btn { border-color: var(--service); color: var(--service); background: transparent; }
button.ai-btn:hover { background: color-mix(in srgb, var(--service) 10%, transparent); }
.theme-toggle { padding: 6px 10px; font-size: 15px; line-height: 1; }

input[type="text"], input[type="password"] {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 14px;
  width: 100%;
  outline: none;
  transition: border-color 0.15s var(--ease-out);
}
input::placeholder { color: var(--muted); }
input:focus { border-color: var(--accent); }

/* ------------------------------------------------------------- topbar */
.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 22px;
  border-bottom: 1px solid var(--glass-border);
  background: var(--glass);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  backdrop-filter: blur(18px) saturate(1.4);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}
.brand { font-weight: 800; font-size: 19px; letter-spacing: -0.5px; white-space: nowrap; }
.brand span { color: var(--accent-text); }
.brand .back { color: var(--muted); font-size: 12px; font-weight: 500; }
.topbar nav { margin-left: auto; display: flex; gap: 18px; align-items: center; }
.topbar nav a { color: var(--muted); font-size: 14px; }
.topbar nav a:hover { color: var(--text); }

/* ------------------------------------------------------------- landing */
#landing { min-height: 100vh; background:
  radial-gradient(1100px 500px at 20% -10%, var(--bg-glow), transparent),
  radial-gradient(900px 400px at 90% 10%, color-mix(in srgb, var(--accent) 4%, transparent), transparent),
  var(--bg);
}
.hero { max-width: 880px; margin: 64px auto 40px; padding: 0 24px; text-align: center; }
.hero h1 { font-size: clamp(30px, 5.2vw, 52px); line-height: 1.12; margin: 0 0 18px; letter-spacing: -1.2px; }
.hero h1 em { font-style: normal; color: var(--accent-text); }
.hero .tagline { color: var(--muted); font-size: 17px; max-width: 68ch; margin: 0 auto; text-wrap: pretty; }
.privacy-note {
  display: inline-block; margin-top: 22px; padding: 7px 16px;
  border: 1px solid var(--border); border-radius: 999px;
  color: var(--route); font-size: 13.5px; background: var(--panel);
}
.hero, .sources .card, .how { animation: rise 0.5s var(--ease-out) both; }
.sources .card:nth-child(2) { animation-delay: 0.05s; }
.sources .card:nth-child(3) { animation-delay: 0.1s; }
.sources .card:nth-child(4) { animation-delay: 0.15s; }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) {
  .hero, .sources .card, .how { animation: none; }
  * { transition-duration: 0.01ms !important; }
}

.sources {
  max-width: 1060px; margin: 24px auto; padding: 0 24px;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 18px;
}
.card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 14px; padding: 22px;
  display: flex; flex-direction: column; gap: 10px;
  transition: border-color 0.15s var(--ease-out), box-shadow 0.15s var(--ease-out);
}
.card:hover { border-color: var(--border-strong); box-shadow: 0 4px 24px color-mix(in srgb, var(--text) 5%, transparent); }
.card h2 { margin: 0; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.card .row { display: flex; gap: 8px; margin-top: 4px; }
.card .hint { font-size: 12.5px; }
.beta {
  font-size: 11px; vertical-align: middle; color: var(--accent-2);
  border: 1px solid var(--accent-2); border-radius: 6px; padding: 1px 7px; margin-left: 6px;
}
.drop-target.dragging { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 7%, var(--panel)); }

.how { max-width: 1060px; margin: 56px auto; padding: 0 24px; }
.how h2 { font-size: 24px; }
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.steps div {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 12px; padding: 18px; font-size: 14px; color: var(--muted);
}
.steps b { color: var(--text); display: block; margin-bottom: 6px; }

footer { text-align: center; color: var(--muted); font-size: 13px; padding: 40px 0 30px; }

/* ------------------------------------------------------------- app/map */
#app { display: flex; flex-direction: column; height: 100vh; }
#app[hidden], #landing[hidden] { display: none; }
body.standalone, body.app-mode { display: flex; flex-direction: column; height: 100vh; overflow: hidden; }
#app .topbar, .standalone .topbar { flex-wrap: wrap; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; flex: 1; min-width: 0; }
.chip {
  padding: 5px 13px; border-radius: 999px; font-size: 13px;
  background: transparent; border: 1px solid var(--border); color: var(--muted);
}
.chip:hover { color: var(--text); }
.chip.active { border-color: var(--accent); color: var(--accent-text); background: color-mix(in srgb, var(--accent) 9%, transparent); }
.toolbar { display: flex; gap: 6px; align-items: center; margin-left: auto; }
.toolbar button { padding: 6px 11px; font-size: 13px; }
@media (max-width: 1000px) {
  #app .topbar .chips, .standalone .topbar .chips { order: 3; flex-basis: 100%; }
}

.map-layout { flex: 1; display: flex; min-height: 0; position: relative; }
#map {
  flex: 1; min-width: 0; user-select: none;
  background: radial-gradient(1200px 600px at 30% 0%, var(--bg-glow), var(--bg));
}
#map:active { cursor: grabbing; }

.sidebar {
  width: 340px; flex-shrink: 0; overflow-y: auto;
  border-left: 1px solid var(--glass-border);
  background: var(--glass);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  backdrop-filter: blur(18px) saturate(1.4);
  padding: 20px 22px;
}
.sidebar h2 { margin: 0 0 6px; font-size: 18px; }
.sidebar h3 { margin: 18px 0 6px; font-size: 12px; text-transform: uppercase; letter-spacing: 1px; color: var(--accent-text); }
.sidebar p, .sidebar li { font-size: 13.5px; color: var(--text-soft); }
.sidebar ul { margin: 4px 0; padding-left: 18px; }
.sidebar .meta { color: var(--muted); font-size: 12.5px; }
.sidebar .path { color: var(--db); font-size: 12.5px; word-break: break-all; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.sidebar .legend { list-style: none; padding: 0; }
.sidebar .legend li { margin: 2px 0; }
.sidebar .ai-badge { color: var(--service); }
.crit-tag, .dead-tag {
  font-size: 10px; vertical-align: middle; padding: 2px 7px; border-radius: 5px;
  margin-left: 6px; font-weight: 600; letter-spacing: 0.4px;
  background: color-mix(in srgb, var(--critical) 13%, transparent);
  color: var(--critical);
  border: 1px solid color-mix(in srgb, var(--critical) 33%, transparent);
}

/* ------------------------------------------------------------ overlays */
.overlay {
  position: fixed; inset: 0; z-index: var(--z-modal);
  background: color-mix(in srgb, var(--bg) 55%, transparent);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
}
.overlay[hidden] { display: none; }
.panel {
  background: var(--glass);
  -webkit-backdrop-filter: blur(24px) saturate(1.5);
  backdrop-filter: blur(24px) saturate(1.5);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: 16px; padding: 28px 34px; text-align: center; max-width: 460px;
}
.settings-panel { text-align: left; width: 460px; max-width: calc(100vw - 32px); }
.settings-panel label { display: block; margin: 14px 0 5px; font-size: 13.5px; font-weight: 600; }
.settings-panel .hint-inline { color: var(--muted); font-weight: 400; font-size: 12px; }
.settings-panel .hint { color: var(--muted); font-size: 12px; margin-top: 14px; }
.row.right { justify-content: flex-end; display: flex; gap: 8px; margin-top: 16px; }

.spinner {
  width: 34px; height: 34px; margin: 0 auto 14px;
  border: 3px solid var(--border); border-top-color: var(--accent);
  border-radius: 50%; animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation-duration: 2s; } }

#toast {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%);
  background: var(--glass);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  backdrop-filter: blur(18px) saturate(1.4);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  color: var(--text);
  padding: 11px 20px; border-radius: 12px; font-size: 14px; z-index: var(--z-toast);
  max-width: 80vw;
}
#toast.error { border-color: var(--critical); color: var(--critical); }

@media (max-width: 760px) {
  .sidebar { display: none; }
}

/* --------------------------------------------------- search + debug UI */
.node-search {
  width: 168px; padding: 6px 11px; font-size: 13px;
  background: var(--panel-2); border: 1px solid var(--border);
  color: var(--text); border-radius: 999px; outline: none;
  transition: border-color 0.15s var(--ease-out), width 0.2s var(--ease-out);
}
.node-search:focus { border-color: var(--accent); width: 210px; }
.node-search::placeholder { color: var(--muted); }
@media (max-width: 1000px) { .node-search, .node-search:focus { width: 132px; } }

.chip.debug-chip.active {
  border-color: var(--critical);
  color: var(--critical);
  background: color-mix(in srgb, var(--critical) 10%, transparent);
}

/* severity pills + bug / fix lists in the detail panel */
.buglist, .fixlist { padding-left: 0; list-style: none; }
.buglist .bug { margin: 8px 0; padding-left: 10px; border-left: 2px solid color-mix(in srgb, var(--critical) 55%, transparent); }
.bugline { display: flex; flex-wrap: wrap; gap: 6px; align-items: baseline; }
.sev {
  font-size: 10px; font-weight: 800; letter-spacing: 0.5px;
  padding: 1px 7px; border-radius: 999px; text-transform: uppercase;
}
.sev-high { background: color-mix(in srgb, var(--critical) 20%, transparent); color: var(--critical); border: 1px solid color-mix(in srgb, var(--critical) 45%, transparent); }
.sev-med  { background: color-mix(in srgb, var(--db) 22%, transparent); color: var(--db); border: 1px solid color-mix(in srgb, var(--db) 45%, transparent); }
.sev-low, .sev-bug { background: color-mix(in srgb, var(--muted) 20%, transparent); color: var(--muted); border: 1px solid color-mix(in srgb, var(--muted) 40%, transparent); }
.bug .ref { font-family: ui-monospace, Menlo, monospace; font-size: 10.5px; color: var(--muted); }
.bug .bugtext { flex: 1 1 100%; color: var(--text-soft); font-size: 13px; }
.bug .ev { margin-top: 3px; display: flex; flex-wrap: wrap; gap: 4px; }
.bug .ev code { font-size: 11px; color: var(--db); }
.bug .warn { margin-top: 3px; font-size: 12px; color: var(--accent-2); }
.fixlist { counter-reset: fix; }
.fixlist li {
  counter-increment: fix; position: relative; margin: 6px 0 6px 26px;
  font-size: 13px; color: var(--text-soft);
}
.fixlist li::before {
  content: counter(fix); position: absolute; left: -26px; top: 0;
  width: 18px; height: 18px; border-radius: 50%; font-size: 10px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  background: color-mix(in srgb, var(--route) 20%, transparent); color: var(--route);
  border: 1px solid color-mix(in srgb, var(--route) 45%, transparent);
}

.debug-panel { width: 560px; max-width: calc(100vw - 32px); }
.debug-textarea {
  width: 100%; min-height: 150px; margin-top: 6px; resize: vertical;
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 11px 13px; font-size: 12.5px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; line-height: 1.5; outline: none;
}
.debug-textarea:focus { border-color: var(--accent); }

/* smooth map hover affordance for nodes + connectors */
.node { transition: opacity 0.12s var(--ease-out); }
.edge { transition: opacity 0.12s var(--ease-out), stroke-width 0.12s var(--ease-out); }