/* JIT.SYS — Instrument Panel Design System
 *
 * Aesthetic: warm-cream-on-charcoal, scientific instrument readout meets
 * editorial broadcast schedule. Fraunces (display serif, italic accent)
 * paired with JetBrains Mono. Phosphor-green for live signals, signal-red
 * for action, amber for measurement. Hairline borders, no rounded corners.
 */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght,SOFT@0,9..144,400..700,30..100;1,9..144,400..700,30..100&family=JetBrains+Mono:ital,wght@0,300..700;1,400&display=swap');

:root{
  /* Surfaces — slightly warm to evoke film stock, not pure black */
  --bg:        #0c0a08;
  --bg-elev:   #14110d;
  --bg-elev2:  #1c1814;
  --line:      #2a221b;
  --line-hi:   #443628;

  /* Type colors — warm cream readability */
  --fg:        #f1e9d6;
  --fg-dim:    #a89a82;
  --fg-mute:   #6a5e4a;

  /* Signal palette — used sparingly, never blended */
  --signal:    #ff5a1f;     /* action / live / errors */
  --phosphor:  #00ff9c;     /* running / success — CRT phosphor */
  --amber:     #ffb000;     /* measurement / warning */
  --ink:       #0c0a08;     /* inverted text on accent */

  --serif: 'Fraunces', 'Iowan Old Style', Georgia, serif;
  --mono:  'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
}

*{box-sizing:border-box}
/* Disable browser's fake-italic synthesis. CJK fonts don't have real italic
 * glyphs, so requesting italic on Chinese text would auto-slant which looks
 * unprofessional. With this rule, italic only renders when the font actually
 * provides italic glyphs (Fraunces for Latin) — Chinese stays upright even
 * inside <em> or `font-style: italic` rules. Bold synthesis is preserved. */
* { font-synthesis: weight; }
html, body { height: 100%; }

body{
  margin: 0;
  background: var(--bg); color: var(--fg);
  font-family: var(--mono);
  font-size: 13px; line-height: 1.6;
  font-feature-settings: 'tnum' 1, 'cv11' 1;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

/* Ambient atmosphere: very subtle scan lines + warm vignette */
body::before{
  content:''; position: fixed; inset: 0;
  pointer-events: none; z-index: 50;
  background:
    repeating-linear-gradient(to bottom,
      transparent 0, transparent 2px,
      rgba(0,0,0,.05) 2px, rgba(0,0,0,.05) 3px);
  opacity: .55;
}
body::after{
  content:''; position: fixed; inset: 0;
  pointer-events: none; z-index: 49;
  background: radial-gradient(ellipse at center,
    transparent 50%, rgba(0,0,0,.45) 100%);
}

/* Corner registration marks — film strip aesthetic */
.regmark{
  position: fixed; pointer-events:none; z-index: 60;
  width: 16px; height: 16px;
  border: 1px solid var(--line-hi);
}
.regmark.tl{top:14px;left:14px;border-right:none;border-bottom:none}
.regmark.tr{top:14px;right:14px;border-left:none;border-bottom:none}
.regmark.bl{bottom:14px;left:14px;border-right:none;border-top:none}
.regmark.br{bottom:14px;right:14px;border-left:none;border-top:none}

/* Selection */
::selection{ background: var(--signal); color: var(--ink); }

/* Links — inverse on hover, no underline */
a{ color: var(--signal); text-decoration: none; transition: all 100ms ease; }
a:hover{ background: var(--signal); color: var(--ink); padding: 0 3px; }
a.no-invert:hover{ background: transparent; color: var(--fg); padding: 0; }

code{
  font-family: var(--mono); font-size: 91%;
  color: var(--amber); background: var(--bg);
  padding: 1px 5px; border: 1px solid var(--line);
}

/* ─────────────────────────  layout  ───────────────────────── */
.wrap{ max-width: 1180px; margin: 0 auto; padding: 36px 32px 80px; }
.wrap.wide{ max-width: 1340px; }

/* ─────────────────────  status bar (top of every page)  ───────────────────── */
.statusbar{
  display: flex; align-items: baseline; gap: 18px; flex-wrap: wrap;
  font: 10px/1 var(--mono); color: var(--fg-mute);
  text-transform: uppercase; letter-spacing: 0.2em;
  padding: 0 0 12px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--line);
}
.statusbar .live{ color: var(--fg); }
.statusbar .live::before{
  content: '●'; color: var(--phosphor); margin-right: 8px;
  animation: pulse-phosphor 1.6s ease-in-out infinite;
}
.statusbar .right{ margin-left: auto; }
.statusbar a{ color: var(--fg-mute); }
.statusbar a:hover{ color: var(--fg); background: transparent; padding: 0; }
.statusbar .sep{ color: var(--line-hi); }
@keyframes pulse-phosphor {
  0%, 100% { opacity: .55; text-shadow: 0 0 0 var(--phosphor); }
  50% { opacity: 1; text-shadow: 0 0 12px var(--phosphor); }
}

/* ─────────────────────  hero block  ───────────────────── */
.hero{ margin: 0 0 36px; }
.hero .tag-num{
  font: italic 500 13px/1 var(--serif);
  color: var(--fg-mute); margin-bottom: 14px;
  font-variation-settings: 'opsz' 14;
}
.hero h1{
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(54px, 8vw, 96px);
  line-height: 0.92; letter-spacing: -0.025em;
  margin: 0;
  font-variation-settings: 'opsz' 144, 'SOFT' 30;
}
.hero h1 em{
  font-style: italic; font-weight: 400;
  color: var(--signal);
  font-variation-settings: 'opsz' 144, 'SOFT' 80;
}
.hero .tag{
  margin: 18px 0 0; max-width: 62ch;
  color: var(--fg-dim); font-size: 14px; line-height: 1.7;
}
.hero .specs{
  display: flex; gap: 24px; flex-wrap: wrap;
  margin-top: 22px; padding-top: 18px;
  border-top: 1px solid var(--line);
  font: 10px/1 var(--mono);
  text-transform: uppercase; letter-spacing: 0.18em;
  color: var(--fg-mute);
}
.hero .specs .k{ color: var(--fg-dim); }
.hero .specs .v{ color: var(--phosphor); margin-left: 6px; }

/* ─────────────────────  section header  ───────────────────── */
.sec-h{
  display: flex; align-items: baseline; gap: 12px;
  font: 10px/1 var(--mono); color: var(--fg-mute);
  text-transform: uppercase; letter-spacing: 0.2em;
  margin: 36px 0 14px;
  padding-bottom: 8px; border-bottom: 1px solid var(--line);
}
.sec-h .label{ color: var(--fg); font-weight: 500; }
.sec-h .meta{ margin-left: auto; }
.sec-h .num{ color: var(--signal); font-style: italic; font-family: var(--serif); }

/* ─────────────────────  BYOK panel  ───────────────────── */
.byok{
  background: var(--bg-elev);
  border: 1px solid var(--line); border-top: 2px solid var(--signal);
  padding: 26px 28px 22px;
  margin-bottom: 36px;
  position: relative;
}
.byok::before{
  content: ''; position: absolute;
  top: -2px; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--signal) 0%, var(--signal) 30%, transparent 30%);
}

.byok-h{
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 22px;
  padding-bottom: 14px; border-bottom: 1px dashed var(--line);
}
.byok-h .glyph{
  width: 30px; height: 30px;
  border: 1px solid var(--signal); color: var(--signal);
  display: grid; place-items: center;
  font: 600 11px var(--mono); letter-spacing: 0.08em;
}
.byok-h .title{
  font-family: var(--serif); font-weight: 500;
  font-size: 22px; color: var(--fg); line-height: 1;
  font-variation-settings: 'opsz' 36;
}
.byok-h .subtitle{
  color: var(--fg-mute); font-size: 10px;
  text-transform: uppercase; letter-spacing: 0.2em;
  margin-left: 2px;
}
.byok-h .right{
  margin-left: auto; font: 10px/1 var(--mono);
  color: var(--fg-mute); text-transform: uppercase; letter-spacing: 0.18em;
}

.grid4{ display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.grid4 label{
  font: 10px/1.4 var(--mono); color: var(--fg-mute);
  text-transform: uppercase; letter-spacing: 0.16em;
  display: block; margin-bottom: 6px;
}

input, select, textarea{
  width: 100%; background: var(--bg); color: var(--fg);
  border: 1px solid var(--line); border-radius: 0;
  padding: 10px 12px;
  font: 13px var(--mono);
  outline: none;
  transition: all 120ms ease;
}
input:focus, select:focus, textarea:focus{
  border-color: var(--signal);
  background: var(--bg-elev2);
  box-shadow: inset 0 0 0 1px var(--signal);
}
textarea{ min-height: 88px; resize: vertical; line-height: 1.55; }

select{
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--fg-dim) 50%),
                    linear-gradient(135deg, var(--fg-dim) 50%, transparent 50%);
  background-position: calc(100% - 14px) 50%, calc(100% - 9px) 50%;
  background-size: 5px 5px;
  background-repeat: no-repeat;
  padding-right: 28px;
}

.byok .hint{
  font-size: 11px; color: var(--fg-mute);
  margin-top: 18px; padding-top: 14px;
  border-top: 1px dashed var(--line);
  line-height: 1.75;
}

/* ─────────────────────  mini BYOK bar (per-scenario top)  ───────────────────── */
.byok-mini{
  display:flex; align-items:center; gap: 18px; flex-wrap: wrap;
  background: var(--bg-elev);
  border: 1px solid var(--line); border-left: 2px solid var(--phosphor);
  padding: 11px 18px; margin-bottom: 28px;
  font-size: 11px;
}
.byok-mini.warn{ border-left-color: var(--amber); background: rgba(255,176,0,0.04); }
.byok-mini .lbl{
  color: var(--fg-mute); text-transform: uppercase;
  letter-spacing: 0.15em; font-size: 9.5px;
}
.byok-mini .val{ color: var(--fg); font-family: var(--mono); }
.byok-mini .right{
  margin-left: auto; display: flex; align-items: center; gap: 14px;
}
.byok-mini .pill{
  font: 10px/1 var(--mono); color: var(--phosphor);
  text-transform: uppercase; letter-spacing: 0.15em;
  padding: 4px 8px; border: 1px solid var(--line); background: var(--bg);
}

/* ─────────────────────  HUB · channel directory  ───────────────────── */
.channels{
  display: grid; grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.channel{
  display: grid; grid-template-columns: 88px 1fr 28px;
  align-items: stretch; gap: 16px;
  padding: 22px 22px 22px 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-decoration: none; color: inherit;
  position: relative;
  cursor: pointer;
  transition: background 160ms ease, transform 160ms ease;
}
.channel:hover{
  background: var(--bg-elev2);
  text-decoration: none;
}
.channel:hover .num{
  color: var(--signal);
  font-variation-settings: 'opsz' 144, 'SOFT' 100;
}
.channel:hover .arrow{
  transform: translateX(4px); color: var(--signal); opacity: 1;
}
.channel:hover .name{ color: var(--fg); }

.channel .num{
  font-family: var(--serif); font-weight: 400; font-style: italic;
  font-size: 76px; line-height: 0.78;
  color: var(--fg-mute);
  font-variation-settings: 'opsz' 144, 'SOFT' 30;
  transition: all 200ms ease;
  align-self: start; padding-top: 4px;
}
.channel .body{ display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.channel .name{
  font-family: var(--serif); font-weight: 500;
  font-size: 22px; line-height: 1.15;
  color: var(--fg);
  font-variation-settings: 'opsz' 36;
  transition: color 160ms ease;
}
.channel .desc{
  color: var(--fg-dim); font-size: 12.5px; line-height: 1.6;
}
.channel .meta{
  display: flex; gap: 16px; flex-wrap: wrap;
  font: 10px/1 var(--mono); color: var(--fg-mute);
  text-transform: uppercase; letter-spacing: 0.14em;
  margin-top: auto; padding-top: 8px;
}
.channel .meta span::before{
  content: '⏵'; color: var(--phosphor); margin-right: 5px;
}
.channel .arrow{
  color: var(--fg-mute); font-size: 18px;
  align-self: center; opacity: 0.5;
  transition: all 200ms ease;
}

@media (max-width: 760px){
  .channels{ grid-template-columns: 1fr; }
  .grid4{ grid-template-columns: 1fr 1fr; }
  .channel .num{ font-size: 56px; }
}

/* ─────────────────────  scenario page  ───────────────────── */
.scenario{
  background: var(--bg-elev);
  border: 1px solid var(--line); border-top: 2px solid var(--signal);
  padding: 32px 36px 36px;
  position: relative;
}
.scenario h2{
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(28px, 4vw, 38px); line-height: 1.05;
  margin: 0 0 10px; letter-spacing: -0.01em;
  font-variation-settings: 'opsz' 72, 'SOFT' 40;
}
/* h2 <em> highlights — color-only emphasis, no italic (most are Chinese) */
.scenario h2 em{
  color: var(--signal); font-weight: 500; font-style: normal;
  font-variation-settings: 'opsz' 72, 'SOFT' 80;
}
.scenario .sub{
  color: var(--fg-dim); font-size: 14px; line-height: 1.7;
  margin-bottom: 16px; max-width: 68ch;
}
.scenario .meta{
  display: flex; gap: 14px; flex-wrap: wrap;
  font: 10px/1 var(--mono); color: var(--fg-mute);
  text-transform: uppercase; letter-spacing: 0.16em;
  margin-bottom: 22px; padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.scenario .meta span::before{
  content: '◆'; color: var(--amber); margin-right: 6px; font-size: 8px;
}
.scenario label{
  font: 10px/1.4 var(--mono); color: var(--fg-mute);
  text-transform: uppercase; letter-spacing: 0.16em;
  display: block; margin: 14px 0 6px;
}

.row{ display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 10px; }
.row > * { flex: 1; min-width: 160px; }
.row.compact{ align-items: center; }
.row.compact > * { flex: 0 0 auto; }
.row.compact label{ display: inline-flex; align-items: center; gap: 8px; margin: 0; }
.row.compact label input{ display: inline-block; width: auto; }

/* ─────────────────────  buttons  ───────────────────── */
.btn{
  background: var(--signal); color: var(--ink);
  border: 1px solid var(--signal); border-radius: 0;
  padding: 11px 22px;
  font: 600 11px var(--mono);
  text-transform: uppercase; letter-spacing: 0.2em;
  cursor: pointer;
  transition: all 120ms ease;
  position: relative;
}
.btn:hover{
  background: transparent; color: var(--signal);
  box-shadow: 4px 4px 0 var(--signal);
  transform: translate(-2px, -2px);
}
.btn:active{ box-shadow: 0 0 0 var(--signal); transform: translate(0,0); }
.btn.secondary{
  background: transparent; color: var(--fg);
  border-color: var(--line-hi);
}
.btn.secondary:hover{
  border-color: var(--fg); color: var(--fg);
  box-shadow: 4px 4px 0 var(--line-hi);
}
.btn:disabled{ opacity:.4; cursor: wait; transform: none; box-shadow: none; }

/* help block */
.help{
  font-size: 12.5px; color: var(--fg-dim); line-height: 1.75;
  background: var(--bg);
  border-left: 2px solid var(--phosphor);
  padding: 12px 16px; margin: 14px 0;
}
.help b{ color: var(--fg); font-weight: 500; }
.help::before{
  content: '// HELP'; display: block;
  font: 9px/1 var(--mono); color: var(--phosphor);
  text-transform: uppercase; letter-spacing: 0.2em;
  margin-bottom: 6px;
}

/* ─────────────────────  output area  ───────────────────── */
.out{
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 18px;
  margin-top: 14px;
  min-height: 80px;
  font: 13px/1.7 var(--mono);
  color: var(--fg);
  white-space: pre-wrap; word-break: break-word;
  max-height: 640px; overflow: auto;
  position: relative;
}
.out.empty{
  color: var(--fg-mute); font-family: var(--serif);
  font-size: 15px; padding: 24px 18px;
}
.out h4{
  margin: 18px 0 8px;
  font: 600 10px/1 var(--mono); color: var(--phosphor);
  text-transform: uppercase; letter-spacing: 0.2em;
}
.out h4:first-child{ margin-top: 0; }
.out h4::before{ content: '── '; color: var(--line-hi); margin-right: 6px; }
.out .stamp{
  color: var(--fg-mute); font-size: 10.5px;
  margin-top: 14px; padding-top: 10px;
  border-top: 1px dashed var(--line);
  text-transform: uppercase; letter-spacing: 0.14em;
}
.out table{ border-collapse: collapse; font-size: 12px; width: 100%; margin: 8px 0; }
.out th, .out td{ border: 1px solid var(--line); padding: 7px 10px; text-align: left; }
.out th{
  background: var(--bg-elev); color: var(--fg-dim); font-weight: 600;
  text-transform: uppercase; font-size: 9.5px; letter-spacing: 0.14em;
}

/* scrollbars (webkit only — keeps the instrument feel) */
.out::-webkit-scrollbar, .thread::-webkit-scrollbar, .arena::-webkit-scrollbar{ width: 8px; height: 8px; }
.out::-webkit-scrollbar-track, .thread::-webkit-scrollbar-track, .arena::-webkit-scrollbar-track{ background: var(--bg-elev); }
.out::-webkit-scrollbar-thumb, .thread::-webkit-scrollbar-thumb, .arena::-webkit-scrollbar-thumb{
  background: var(--line-hi); border: 2px solid var(--bg-elev);
}

/* ─────────────────────  badges  ───────────────────── */
.badge{
  display: inline-block;
  padding: 3px 9px;
  font: 600 10px/1.5 var(--mono);
  text-transform: uppercase; letter-spacing: 0.14em;
  background: var(--line); color: var(--fg-dim);
  margin-right: 4px;
  border: 1px solid var(--line-hi);
}
.badge.ok{ background: rgba(0,255,156,.08); color: var(--phosphor); border-color: var(--phosphor); }
.badge.err{ background: rgba(255,90,31,.08); color: var(--signal); border-color: var(--signal); }
.badge.warn{ background: rgba(255,176,0,.08); color: var(--amber); border-color: var(--amber); }

/* ─────────────────────  timer (instrument readout)  ───────────────────── */
.timer{
  display: inline-flex; align-items: center; gap: 9px;
  font: 700 17px/1 var(--mono);
  font-feature-settings: 'tnum';
  color: var(--fg-dim);
  background: var(--bg);
  padding: 9px 16px;
  border: 1px solid var(--line);
  min-width: 110px;
  letter-spacing: 0.04em;
  position: relative;
}
.timer::before{
  content: ''; width: 7px; height: 7px;
  background: var(--fg-mute); border-radius: 50%;
}
.timer.running{
  color: var(--phosphor); border-color: var(--phosphor);
  text-shadow: 0 0 8px rgba(0,255,156,.4);
  animation: glow-phosphor 1.4s ease-in-out infinite;
}
.timer.running::before{
  background: var(--phosphor);
  box-shadow: 0 0 8px var(--phosphor);
  animation: blink 0.8s steps(1) infinite;
}
.timer.done{ color: var(--fg); border-color: var(--line-hi); }
.timer.done::before{ background: var(--phosphor); box-shadow: 0 0 6px var(--phosphor); }

@keyframes glow-phosphor {
  0%, 100% { box-shadow: inset 0 0 0 rgba(0,255,156,0); }
  50% { box-shadow: inset 0 0 12px rgba(0,255,156,.18); }
}
@keyframes blink { 50% { opacity: 0.2; } }

/* ─────────────────────  iframe / proto preview  ───────────────────── */
iframe.proto{
  width: 100%; height: 600px;
  border: 1px solid var(--line); background: white;
  margin-top: 8px;
  filter: contrast(1.02);
}

/* ─────────────────────  NPC cards (S06)  ───────────────────── */
.npc{
  background: var(--bg);
  border: 1px solid var(--line); border-left: 2px solid var(--signal);
  padding: 14px 16px; margin-bottom: 8px;
  transition: border-left-color 200ms ease;
}
.npc:hover{ border-left-color: var(--phosphor); }
.npc .name{
  font-family: var(--serif); font-style: normal;
  font-weight: 600; font-size: 17px;
  color: var(--fg); font-variation-settings: 'opsz' 24;
}
.npc .action{ color: var(--amber); font-size: 12px; margin: 6px 0; }
.npc .mono{ color: var(--fg-mute); font-size: 12px; }
.npc .emo{
  display: inline-block; background: var(--line);
  border: 1px solid var(--line-hi);
  padding: 2px 9px; font-size: 9.5px;
  text-transform: uppercase; letter-spacing: 0.14em;
  margin-left: 10px; color: var(--fg-dim);
}
.emergent{
  background: rgba(255,176,0,.06);
  border: 1px solid var(--amber);
  padding: 11px 16px; margin-top: 12px;
  color: var(--amber); font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.18em;
}
.emergent::before{ content: '⚡ '; }

/* ─────────────────────  turn pills (S09 thread)  ───────────────────── */
.thread{
  display: flex; flex-direction: column; gap: 4px;
  max-height: 540px; overflow-y: auto; padding: 10px;
  background: var(--bg);
  border: 1px solid var(--line);
  margin-top: 10px;
  font-feature-settings: 'tnum';
}
.row-turn{
  display: grid; grid-template-columns: 56px 64px 1fr 64px;
  gap: 10px; align-items: center;
  padding: 7px 12px;
  font-size: 12.5px; line-height: 1.5;
  animation: slideIn .25s ease-out;
  border-left: 2px solid transparent;
}
.row-turn.seller{ background: rgba(125,211,252,.04); border-left-color: #88d8ff; }
.row-turn.buyer { background: rgba(253,164,175,.04); border-left-color: #ff9ab0; }
.row-turn .r{ font: 600 10px var(--mono); color: var(--fg-mute); letter-spacing: 0.12em; }
.row-turn .who{ font: 600 10px var(--mono); text-transform: uppercase; letter-spacing: 0.14em; }
.row-turn.seller .who{ color: #88d8ff; }
.row-turn.buyer .who{ color: #ff9ab0; }
.row-turn .body{ color: var(--fg); }
.row-turn .ms{
  font: 600 10px var(--mono); color: var(--amber);
  text-align: right; letter-spacing: 0.06em;
}
.judge-row{
  display: grid; grid-template-columns: 64px 1fr; gap: 10px;
  padding: 6px 12px; font-size: 11px;
  color: var(--amber); background: rgba(255,176,0,.04);
  border-left: 2px solid var(--amber);
  text-transform: uppercase; letter-spacing: 0.12em;
  animation: slideIn .25s ease-out;
}
.judge-row.deal{ color: var(--phosphor); background: rgba(0,255,156,.05); border-left-color: var(--phosphor); }
.judge-row.brk{ color: var(--signal); background: rgba(255,90,31,.05); border-left-color: var(--signal); }

@keyframes slideIn{
  from{ transform: translateY(-6px); opacity: 0; }
  to{ transform: none; opacity: 1; }
}

/* stat strip (S09/S10) */
.stats{
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  margin-top: 14px; background: var(--line);
  border: 1px solid var(--line);
}
.stat{
  background: var(--bg-elev); padding: 12px 14px;
  display: flex; flex-direction: column; gap: 4px;
}
.stat .lbl{
  font: 600 9.5px/1 var(--mono); color: var(--fg-mute);
  text-transform: uppercase; letter-spacing: 0.18em;
}
.stat .v{
  font: 700 18px var(--mono); color: var(--phosphor);
  font-feature-settings: 'tnum';
}

/* ─────────────────────  arena (S10 debate)  ───────────────────── */
.arena{
  display: grid; grid-template-columns: 1fr 0.7fr 1fr; gap: 6px;
  max-height: 580px; overflow-y: auto;
  padding: 10px; background: var(--bg);
  border: 1px solid var(--line);
  margin-top: 10px;
}
.arena .col-A, .arena .col-B, .arena .col-J{
  display: flex; flex-direction: column; gap: 6px;
}
.arena .col-J{ background: rgba(255,176,0,.02); padding: 0 4px; }
.arena .col-header{
  font: 600 9.5px var(--mono); text-transform: uppercase; letter-spacing: .18em;
  padding: 6px 8px; border-bottom: 1px solid var(--line);
  position: sticky; top: 0; background: var(--bg); z-index: 1;
}
.arena .col-A .col-header{ color: #88d8ff; }
.arena .col-B .col-header{ color: #ff9ab0; }
.arena .col-J .col-header{ color: var(--amber); background: var(--bg); }
.turn-card{
  padding: 9px 12px;
  font-size: 12.5px; line-height: 1.55;
  border: 1px solid var(--line);
  border-left-width: 2px;
  animation: slideIn .25s ease-out;
}
.turn-card.A{ border-left-color: #88d8ff; background: rgba(136,216,255,.03); }
.turn-card.B{ border-left-color: #ff9ab0; background: rgba(255,154,176,.03); }
.turn-card.J{
  border-left-color: var(--amber); background: rgba(255,176,0,.06);
}
.turn-card .h{
  display: flex; justify-content: space-between;
  font: 600 9.5px var(--mono); margin-bottom: 5px;
  letter-spacing: 0.16em; text-transform: uppercase;
}
.turn-card.A .h{ color: #88d8ff; }
.turn-card.B .h{ color: #ff9ab0; }
.turn-card.J .h{ color: var(--amber); }
.turn-card .h .ms{ color: var(--amber); }
.turn-card .body{ color: var(--fg); }

/* stance panel (S10) */
.stance{
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
  margin: 10px 0;
}
.stance .col{
  background: var(--bg);
  border: 1px solid var(--line); border-left-width: 2px;
  padding: 12px 14px; font-size: 12.5px; line-height: 1.55;
}
.stance .col.A{ border-left-color: #88d8ff; }
.stance .col.B{ border-left-color: #ff9ab0; }
.stance .col h5{
  margin: 0 0 6px; font: 600 9.5px var(--mono);
  letter-spacing: 0.18em; text-transform: uppercase;
}
.stance .col.A h5{ color: #88d8ff; }
.stance .col.B h5{ color: #ff9ab0; }

/* verdict (S10) */
.verdict .scores{
  display: grid; grid-template-columns: 1fr 1fr; gap: 1px;
  margin: 12px 0;
  background: var(--line); border: 1px solid var(--line);
}
.verdict .scol{
  background: var(--bg-elev); padding: 14px;
  text-align: center; border-left: 2px solid;
}
.verdict .scol.A{ border-left-color: #88d8ff; }
.verdict .scol.B{ border-left-color: #ff9ab0; }
.verdict .scol .lbl{
  font: 600 10px var(--mono); text-transform: uppercase;
  letter-spacing: 0.18em; color: var(--fg-mute);
}
.verdict .scol.A .lbl{ color: #88d8ff; }
.verdict .scol.B .lbl{ color: #ff9ab0; }
.verdict .scol .score{
  font: 700 28px var(--serif); margin-top: 4px;
  font-style: italic;
}
.verdict .rec{
  padding: 14px 18px;
  background: rgba(255,90,31,.04); border-left: 2px solid var(--signal);
  font-size: 13px; line-height: 1.7; color: var(--fg);
}

/* ─────────────────────  S08 article + lenses  ───────────────────── */
.article{
  background: var(--bg); border: 1px solid var(--line);
  padding: 22px 24px; line-height: 1.85; color: var(--fg);
  font-family: var(--serif); font-size: 15px;
}
.article p{
  margin: 16px 0; cursor: pointer;
  padding: 8px 12px;
  transition: all 120ms ease;
  border-left: 2px solid transparent;
}
.article p:hover{ background: var(--bg-elev); border-left-color: var(--line-hi); }
.article p.active{ background: var(--bg-elev2); border-left-color: var(--signal); }

.lens-grid{ display: flex; gap: 4px; flex-wrap: wrap; margin: 14px 0; }
.lens-pill{
  background: var(--bg); border: 1px solid var(--line);
  padding: 6px 12px;
  font: 600 10px var(--mono); color: var(--fg-mute);
  text-transform: uppercase; letter-spacing: 0.16em;
  cursor: pointer; transition: all 120ms ease;
}
.lens-pill:hover{ border-color: var(--line-hi); color: var(--fg); }
.lens-pill.active{
  background: var(--phosphor); color: var(--ink);
  border-color: var(--phosphor);
}

/* ─────────────────────  meters (S11)  ───────────────────── */
.meters{
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  margin-bottom: 16px; background: var(--line);
  border: 1px solid var(--line);
}
.meter{
  background: var(--bg-elev); padding: 16px 18px;
  display: flex; flex-direction: column; gap: 4px;
}
.meter h5{
  margin: 0; font: 600 10px var(--mono);
  color: var(--fg-mute); text-transform: uppercase; letter-spacing: 0.18em;
}
.meter .v{
  font: 700 26px var(--mono); color: var(--phosphor);
  font-feature-settings: 'tnum';
}
.meter .v.warn{ color: var(--amber); }
.meter .v.err{ color: var(--signal); }
.meter .target{ font-size: 9.5px; color: var(--fg-mute); margin-top: 4px;
  text-transform: uppercase; letter-spacing: 0.14em; }

.transcript{
  font-family: var(--serif); font-size: 17px; line-height: 1.75;
  color: var(--fg); background: var(--bg);
  padding: 18px 20px;
  border: 1px solid var(--line); border-left: 2px solid var(--phosphor);
  min-height: 90px;
}

/* ─────────────────────  split layout (S05/S07)  ───────────────────── */
.split{ display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 900px){ .split{ grid-template-columns: 1fr; } }

/* ─────────────────────  details (review block)  ───────────────────── */
details.review{ margin-top: 14px; }
details.review summary{
  cursor: pointer;
  padding: 10px 14px;
  background: var(--bg);
  border: 1px solid var(--line); border-left: 2px solid var(--amber);
  font: 600 10px var(--mono); color: var(--amber);
  text-transform: uppercase; letter-spacing: 0.18em;
  list-style: none;
}
details.review summary::-webkit-details-marker{ display: none; }
details.review summary::before{ content: '▸ '; margin-right: 4px; }
details.review[open] summary::before{ content: '▾ '; }
details.review .body{
  background: var(--bg-elev2); border: 1px solid var(--line); border-top: none;
  padding: 14px 18px;
  white-space: pre-wrap; font-size: 13px; line-height: 1.7;
  color: var(--fg);
}

/* ─────────────────────  hub footer  ───────────────────── */
.hub-foot{
  margin-top: 32px; padding: 18px 0;
  border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font: 10px/1.6 var(--mono); color: var(--fg-mute);
  text-transform: uppercase; letter-spacing: 0.18em;
}
.hub-foot em{ color: var(--phosphor); font-style: normal; }

/* ─────────────────────  staggered entrance for cards  ───────────────────── */
.channel{ opacity: 0; animation: fadeUp 380ms ease-out forwards; }
.channel:nth-child(1){ animation-delay: 40ms; }
.channel:nth-child(2){ animation-delay: 80ms; }
.channel:nth-child(3){ animation-delay: 120ms; }
.channel:nth-child(4){ animation-delay: 160ms; }
.channel:nth-child(5){ animation-delay: 200ms; }
.channel:nth-child(6){ animation-delay: 240ms; }
.channel:nth-child(7){ animation-delay: 280ms; }
.channel:nth-child(8){ animation-delay: 320ms; }
.channel:nth-child(9){ animation-delay: 360ms; }
.channel:nth-child(10){ animation-delay: 400ms; }
.channel:nth-child(11){ animation-delay: 440ms; }

@keyframes fadeUp{
  from{ opacity: 0; transform: translateY(10px); }
  to{ opacity: 1; transform: none; }
}

.scenario, .byok, .hero{
  animation: fadeUp 380ms ease-out;
}