/* ============================================================================
   RRGI discourse-graph viewer — "cold-storage instrument" theme.
   Near-black ink, faint engineering grid + film grain, a serif display
   (Fraunces) over mono data (IBM Plex Mono). CIDs are first-class objects.
   ========================================================================== */

:root {
  --ink:      #090b0c;
  --ink-1:    #0e1316;
  --ink-2:    #141b1f;
  --raise:    #1b2429;
  --line:     rgba(130, 155, 165, 0.10);
  --line-2:   rgba(130, 155, 165, 0.20);
  --text:     #e9e7dd;
  --dim:      #818d93;
  --dimmer:   #525d62;

  /* node types */
  --claim:     #ecc049;
  --evidence:  #54d6a0;
  --question:  #5cb1e6;
  --source:    #cd8a5b;
  --issue:     #b18cf2;

  /* relations */
  --supports:  #46c98a;
  --opposes:   #e76a5b;
  --addresses: #5cb1e6;
  --informs:   #4ec9c9;

  --ok:   #46c98a;
  --bad:  #e76a5b;
  --warn: #ecc049;

  --shadow: 0 24px 60px -28px rgba(0, 0, 0, 0.9);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--ink);
  color: var(--text);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 14px;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

body {
  display: flex;
  flex-direction: column;
  /* faint engineering grid */
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 46px 46px;
  background-position: center;
}

/* film grain + vignette for atmosphere */
.grain {
  position: fixed; inset: 0; z-index: 9; pointer-events: none; opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.vignette {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(120% 90% at 50% 30%, transparent 55%, rgba(0,0,0,0.55) 100%);
}

/* --------------------------------------------------------------- masthead */
.masthead {
  position: relative; z-index: 5;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem; padding: 0.85rem 1.4rem;
  border-bottom: 1px solid var(--line-2);
  background: linear-gradient(180deg, rgba(14,19,22,0.92), rgba(9,11,12,0.55));
  backdrop-filter: blur(6px);
}
.mark { display: flex; align-items: center; gap: 0.8rem; }
.mark-glyph {
  width: 30px; height: 30px; flex: none; border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, var(--claim) 0 18%, transparent 19%),
    conic-gradient(from 0deg, var(--supports), var(--informs), var(--opposes), var(--supports));
  box-shadow: 0 0 0 1px var(--line-2), 0 0 18px -2px rgba(236,192,73,0.5);
  animation: spin 22s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.mark-text h1 {
  margin: 0; font-family: "Fraunces", serif; font-weight: 500;
  font-size: 1.45rem; letter-spacing: 0.06em; line-height: 1;
}
.mark-text p {
  margin: 0.25rem 0 0; color: var(--dim); font-size: 0.7rem;
  letter-spacing: 0.16em; text-transform: uppercase;
}

.readout { display: flex; align-items: center; gap: 1.6rem; }
.stat { display: flex; flex-direction: column; align-items: flex-end; line-height: 1.1; }
.stat b {
  font-family: "Fraunces", serif; font-size: 1.5rem; font-weight: 500;
  font-variant-numeric: tabular-nums; color: var(--text);
}
.stat span { font-size: 0.6rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--dimmer); }
.stat.queue b { color: var(--evidence); }
.stat.queue.warn b { color: var(--warn); }

.pulse { display: flex; align-items: center; gap: 0.45rem; padding-left: 1.2rem; border-left: 1px solid var(--line-2); }
.pulse .dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--ok);
  box-shadow: 0 0 0 0 rgba(70,201,138,0.7); animation: ping 2.6s ease-out infinite;
}
.pulse-label { font-size: 0.6rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--dim); }
@keyframes ping {
  0% { box-shadow: 0 0 0 0 rgba(70,201,138,0.55); }
  70%,100% { box-shadow: 0 0 0 9px rgba(70,201,138,0); }
}

/* ------------------------------------------------------------------- main */
main { position: relative; flex: 1; min-height: 0; z-index: 2; }
#graph { position: absolute; inset: 0; width: 100%; height: 100%; display: block; cursor: grab; }
#graph.dragging { cursor: grabbing; }

/* edges */
.edge { fill: none; stroke-width: 1.6; opacity: 0.7; transition: opacity 0.2s, stroke-width 0.2s; }
.edge.supports  { stroke: var(--supports); }
.edge.opposes   { stroke: var(--opposes); stroke-dasharray: 6 4; }
.edge.addresses { stroke: var(--addresses); }
.edge.informs   { stroke: var(--informs); stroke-dasharray: 2 4; }
.edge.faded { opacity: 0.08; }
.edge.lit { opacity: 1; stroke-width: 2.6; filter: drop-shadow(0 0 6px currentColor); }
marker.arrow path { fill: context-stroke; }
#arrow-supports path  { fill: var(--supports); }
#arrow-opposes path   { fill: var(--opposes); }
#arrow-addresses path { fill: var(--addresses); }
#arrow-informs path   { fill: var(--informs); }

/* nodes */
.node { cursor: pointer; }
.node circle.halo { fill: none; stroke: currentColor; opacity: 0; transition: opacity 0.2s; }
.node.lit circle.halo { opacity: 0.35; }
.node circle.body {
  stroke: rgba(0,0,0,0.55); stroke-width: 1.2;
  filter: drop-shadow(0 0 7px currentColor);
  transition: r 0.2s;
}
.node.faded { opacity: 0.18; transition: opacity 0.2s; }
.node text {
  fill: var(--text); font-size: 9px; letter-spacing: 0.02em;
  text-anchor: middle; pointer-events: none;
  paint-order: stroke; stroke: var(--ink); stroke-width: 3px; stroke-linejoin: round;
}
.node .seal {
  fill: var(--ink); stroke-width: 1.2;
}
.node.archived .seal { fill: var(--ok); stroke: var(--ok); }
.node:not(.archived) .seal { fill: none; stroke: var(--dimmer); }

.node[data-type="claim"]    { color: var(--claim); }
.node[data-type="evidence"] { color: var(--evidence); }
.node[data-type="question"] { color: var(--question); }
.node[data-type="source"]   { color: var(--source); }
.node[data-type="issue"]    { color: var(--issue); }

/* -------------------------------------------------------------- inspector */
.inspector {
  position: absolute; top: 1rem; right: 1rem; bottom: 1rem; width: min(400px, 86vw);
  z-index: 6; background: linear-gradient(180deg, var(--ink-1), var(--ink));
  border: 1px solid var(--line-2); border-radius: 4px; box-shadow: var(--shadow);
  padding: 1.4rem 1.4rem 1.2rem; overflow-y: auto;
  transform: translateX(calc(100% + 1.5rem)); opacity: 0;
  transition: transform 0.42s cubic-bezier(0.16,1,0.3,1), opacity 0.3s;
}
.inspector[data-open="true"] { transform: none; opacity: 1; }
.inspector-close {
  position: absolute; top: 0.9rem; right: 0.9rem; background: none; cursor: pointer;
  border: 1px solid var(--line-2); color: var(--dim); border-radius: 3px;
  font-family: inherit; font-size: 0.62rem; letter-spacing: 0.1em; padding: 0.2rem 0.45rem;
}
.inspector-close:hover { color: var(--text); border-color: var(--dim); }

.insp-kind {
  display: inline-block; font-size: 0.62rem; letter-spacing: 0.22em; text-transform: uppercase;
  padding: 0.25rem 0.6rem; border-radius: 2px; border: 1px solid currentColor; margin-bottom: 1rem;
}
.insp-title { font-family: "Fraunces", serif; font-weight: 400; font-size: 1.32rem; line-height: 1.3; margin: 0 0 1.1rem; color: var(--text); }
.insp-title em { color: var(--dim); font-style: italic; }

.field { margin: 0 0 0.95rem; }
.field > label {
  display: block; font-size: 0.58rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--dimmer); margin-bottom: 0.3rem;
}
.field .val { font-size: 0.82rem; color: var(--text); word-break: break-word; line-height: 1.5; }
.cid {
  display: flex; align-items: center; gap: 0.5rem; font-size: 0.72rem; color: var(--dim);
  word-break: break-all; background: var(--ink-2); border: 1px solid var(--line);
  padding: 0.45rem 0.55rem; border-radius: 3px;
}
.cid .seal-dot { flex: none; width: 8px; height: 8px; border-radius: 50%; }
.seal-ok  { background: var(--ok);  box-shadow: 0 0 8px var(--ok); }
.seal-bad { background: var(--bad); box-shadow: 0 0 8px var(--bad); }
.seal-off { background: transparent; border: 1px solid var(--dimmer); }

.seals { display: grid; grid-template-columns: 1fr; gap: 0.5rem; }
.seal-row {
  display: flex; align-items: center; gap: 0.6rem;
  border: 1px solid var(--line); border-radius: 3px; padding: 0.5rem 0.6rem; background: var(--ink-1);
}
.seal-row .glyph { flex: none; width: 22px; height: 22px; display: grid; place-items: center; border-radius: 50%; font-size: 0.7rem; }
.seal-row.on  .glyph { color: var(--ok);  border: 1px solid var(--ok); box-shadow: 0 0 10px -2px var(--ok); }
.seal-row.off .glyph { color: var(--dimmer); border: 1px solid var(--dimmer); }
.seal-row .meta b { display: block; font-size: 0.74rem; font-weight: 500; color: var(--text); }
.seal-row .meta span { font-size: 0.6rem; letter-spacing: 0.06em; color: var(--dim); }

.insp-edges { margin-top: 0.4rem; }
.insp-edges .e {
  display: flex; align-items: baseline; gap: 0.5rem; padding: 0.4rem 0; border-top: 1px solid var(--line);
  font-size: 0.74rem;
}
.insp-edges .e .rel { font-size: 0.58rem; letter-spacing: 0.12em; text-transform: uppercase; flex: none; width: 78px; }
.insp-edges .e .rel.supports { color: var(--supports); }
.insp-edges .e .rel.opposes { color: var(--opposes); }
.insp-edges .e .rel.addresses { color: var(--addresses); }
.insp-edges .e .rel.informs { color: var(--informs); }
.insp-edges .e .to { color: var(--dim); cursor: pointer; }
.insp-edges .e .to:hover { color: var(--text); }

/* ---------------------------------------------------------------- legend */
.legend {
  position: absolute; left: 1rem; bottom: 1rem; z-index: 4;
  display: flex; flex-direction: column; gap: 0.55rem;
  background: rgba(9,11,12,0.6); border: 1px solid var(--line);
  padding: 0.7rem 0.85rem; border-radius: 4px; backdrop-filter: blur(4px);
}
.legend-group { display: flex; align-items: center; gap: 0.8rem; flex-wrap: wrap; }
.legend-title { font-size: 0.56rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--dimmer); width: 56px; }
.chip { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.66rem; color: var(--dim); }
.chip i { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.chip[data-type="claim"] i    { background: var(--claim); }
.chip[data-type="evidence"] i { background: var(--evidence); }
.chip[data-type="question"] i { background: var(--question); }
.chip[data-type="source"] i   { background: var(--source); }
.chip[data-type="issue"] i    { background: var(--issue); }
.chip.rel i { border-radius: 1px; height: 3px; width: 16px; }
.chip[data-rel="supports"] i  { background: var(--supports); }
.chip[data-rel="opposes"] i   { background: var(--opposes); }
.chip[data-rel="addresses"] i { background: var(--addresses); }
.chip[data-rel="informs"] i   { background: var(--informs); }

.hint {
  position: absolute; bottom: 1.1rem; left: 50%; transform: translateX(-50%); z-index: 3;
  font-size: 0.62rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--dimmer);
  pointer-events: none; transition: opacity 0.5s;
}

.loader {
  position: absolute; inset: 0; z-index: 7; display: grid; place-content: center; justify-items: center; gap: 1rem;
  color: var(--dim); letter-spacing: 0.18em; text-transform: uppercase; font-size: 0.7rem;
  background: var(--ink); transition: opacity 0.6s;
}
.loader span {
  width: 34px; height: 34px; border-radius: 50%;
  border: 1.5px solid var(--line-2); border-top-color: var(--claim); animation: spin 0.9s linear infinite;
}
.loader.gone { opacity: 0; pointer-events: none; }

/* -------------------------------------------------------------- colophon */
.colophon {
  position: relative; z-index: 5;
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.5rem 1.4rem; border-top: 1px solid var(--line-2);
  font-size: 0.62rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--dimmer);
  background: rgba(9,11,12,0.7);
}
.colophon .src { color: var(--dim); }

/* node entrance */
.node { animation: rise 0.6s cubic-bezier(0.16,1,0.3,1) backwards; }
@keyframes rise { from { opacity: 0; transform: scale(0.4); } }

@media (max-width: 720px) {
  .readout .stat:not(.queue):not([data-k="records"]) { display: none; }
  .legend { display: none; }
  .mark-text p { display: none; }
}