/* NexaRaubotics App v1 — mobile-first */
:root {
  --bg: #05090b;
  --surface: #0b1215;
  --surface-deep: #10191d;
  --ink: #effaf9;
  --muted: #a8baba;
  --faint: #748789;
  --line: rgba(0, 229, 204, .14);
  --line-strong: rgba(0, 229, 204, .32);
  --teal: #00e5cc;
  --teal-dim: rgba(0, 229, 204, .12);
  --amber: #ffb347;
  --amber-dim: rgba(255, 179, 71, .1);
  --danger: #ff6b6b;
  --radius: 14px;
  --tabbar-h: 68px;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100dvh;
}
#app { max-width: 560px; margin: 0 auto; min-height: 100dvh; position: relative;
  background:
    radial-gradient(ellipse at 90% -4%, rgba(0,229,204,.07), transparent 55%),
    radial-gradient(ellipse at 8% 12%, rgba(255,179,71,.05), transparent 45%),
    var(--bg);
}

/* ---- Top bar ---- */
.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px calc(14px + env(safe-area-inset-top) * 0);
  padding-top: calc(14px + env(safe-area-inset-top));
  background: rgba(5, 9, 11, .9);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.brand { font-family: "Orbitron", sans-serif; font-weight: 800; font-size: 17px; letter-spacing: .12em; }
.brand span { color: var(--teal); }
.live-dot { display: flex; align-items: center; gap: 7px;
  font-family: "IBM Plex Mono", monospace; font-size: 10px; letter-spacing: .18em; color: var(--faint); }
.live-dot i { width: 8px; height: 8px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 8px var(--amber); }
.live-dot.live i { background: var(--teal); box-shadow: 0 0 8px var(--teal); }
.live-dot.live { color: var(--teal); }

/* ---- Views ---- */
main { padding: 20px 16px calc(var(--tabbar-h) + 28px + env(safe-area-inset-bottom)); }
.view-head { margin: 6px 2px 18px; }
.eyebrow { font-family: "IBM Plex Mono", monospace; font-size: 11px; font-weight: 600;
  letter-spacing: .22em; text-transform: uppercase; color: var(--teal); margin: 0 0 8px; }
h1.vtitle { font-family: "Orbitron", sans-serif; font-weight: 800; font-size: 30px;
  line-height: 1.08; letter-spacing: -.01em; margin: 0 0 10px; }
h1.vtitle .accent { color: var(--teal); }
.vlede { color: var(--muted); font-size: 14.5px; margin: 0; max-width: 44ch; }
.vlede strong { color: var(--ink); }

/* ---- Leaderboard cards ---- */
.sortrow { display: flex; gap: 8px; margin: 0 2px 14px; overflow-x: auto; padding-bottom: 4px; }
.chip { flex: none; background: var(--surface); border: 1px solid var(--line); color: var(--muted);
  border-radius: 999px; padding: 8px 14px; font-family: "IBM Plex Mono", monospace;
  font-size: 11px; letter-spacing: .1em; text-transform: uppercase; cursor: pointer; }
.chip.active { background: var(--teal); border-color: var(--teal); color: #04211d; font-weight: 600; }

.lcard { background: var(--surface); border: 1px solid var(--line-strong); border-radius: var(--radius);
  margin-bottom: 12px; overflow: hidden; cursor: pointer; position: relative;
  transition: transform .12s ease, border-color .12s ease; }
.lcard:active { transform: scale(.985); }
.lcard::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--teal), var(--amber)); opacity: .85; }
.lcard-top { display: flex; align-items: center; gap: 14px; padding: 16px 16px 14px; }
.rank { font-family: "Orbitron", sans-serif; font-weight: 800; font-size: 26px; color: transparent;
  -webkit-text-stroke: 1.3px var(--teal); min-width: 44px; text-align: center; }
.lcard-main { flex: 1; min-width: 0; }
.lcard-name { font-weight: 700; font-size: 17px; letter-spacing: -.01em; }
.lcard-name .robot { color: var(--teal); font-weight: 600; }
.lcard-sub { font-family: "IBM Plex Mono", monospace; font-size: 10.5px; letter-spacing: .08em;
  color: var(--faint); text-transform: uppercase; margin-top: 3px; }
.grade { text-align: right; }
.grade-num { font-family: "Orbitron", sans-serif; font-weight: 800; font-size: 30px; line-height: 1; }
.grade-cap { font-family: "IBM Plex Mono", monospace; font-size: 9px; letter-spacing: .2em;
  color: var(--faint); text-transform: uppercase; margin-top: 4px; }
.partial { display: inline-block; margin-top: 6px; padding: 3px 8px; border: 1px solid var(--amber);
  color: var(--amber); border-radius: 4px; font-family: "IBM Plex Mono", monospace;
  font-size: 9px; letter-spacing: .12em; text-transform: uppercase; }
.lcard-bars { display: flex; gap: 6px; padding: 0 16px 16px; }
.mbar { flex: 1; height: 5px; border-radius: 3px; background: rgba(255,255,255,.07); overflow: hidden; }
.mbar i { display: block; height: 100%; border-radius: 3px;
  background: linear-gradient(90deg, var(--teal), #7df9ec); }
.mbar.gapbar { background: repeating-linear-gradient(45deg, rgba(255,179,71,.22) 0 5px, transparent 5px 10px); }
.mbar.gapbar i { display: none; }
.chev { color: var(--faint); font-size: 18px; padding-right: 2px; }

/* Watchlist */
.wcard { background: var(--surface); border: 1px dashed rgba(255,179,71,.4); border-radius: var(--radius);
  margin-bottom: 10px; padding: 14px 16px; cursor: pointer; }
.wcard:active { transform: scale(.985); }
.wcard .wname { font-weight: 700; font-size: 15.5px; }
.wcard .wname .robot { color: var(--teal); font-weight: 600; }
.wcard .wgap { color: var(--amber); font-size: 13px; margin: 6px 0 0; line-height: 1.5; }
.wtag { display: inline-block; font-family: "IBM Plex Mono", monospace; font-size: 9px;
  letter-spacing: .16em; text-transform: uppercase; color: var(--amber);
  border: 1px solid rgba(255,179,71,.45); border-radius: 4px; padding: 3px 8px; margin-bottom: 8px; }
.sec-label { font-family: "IBM Plex Mono", monospace; font-size: 11px; letter-spacing: .2em;
  text-transform: uppercase; color: var(--muted); margin: 22px 2px 12px; }
.sec-label b { color: var(--teal); }

/* ---- Math$ feed ---- */
.mcard { background: var(--surface); border: 1px solid var(--line-strong); border-radius: var(--radius);
  margin-bottom: 12px; padding: 18px 16px 14px; position: relative; overflow: hidden; }
.mcard::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--amber), var(--teal)); opacity: .85; }
.mcat { font-family: "IBM Plex Mono", monospace; font-size: 10px; letter-spacing: .18em;
  text-transform: uppercase; color: var(--amber); margin-bottom: 8px; }
.mvalue { font-family: "Orbitron", sans-serif; font-weight: 800; font-size: 34px; line-height: 1.05;
  letter-spacing: -.01em; color: var(--ink); margin-bottom: 6px; }
.mvalue .up { color: var(--teal); }
.mlabel { font-weight: 600; font-size: 15px; margin-bottom: 6px; }
.mctx { color: var(--muted); font-size: 13.5px; line-height: 1.55; margin: 0 0 10px; }
.msrc { font-family: "IBM Plex Mono", monospace; font-size: 10.5px; letter-spacing: .06em;
  color: var(--faint); text-transform: uppercase; border-top: 1px solid var(--line);
  padding-top: 10px; }
.mep { display: inline-block; margin-top: 8px; font-family: "IBM Plex Mono", monospace; font-size: 10px;
  letter-spacing: .1em; color: var(--teal); text-transform: uppercase; }

/* ---- Method ---- */
.method-card { background: var(--surface); border: 1px solid var(--line-strong);
  border-radius: var(--radius); padding: 18px 16px; margin-bottom: 12px; }
.method-card h3 { font-family: "Orbitron", sans-serif; font-size: 16px; margin: 0 0 4px;
  display: flex; justify-content: space-between; align-items: baseline; }
.method-card h3 .w { color: var(--amber); font-family: "IBM Plex Mono", monospace; font-size: 13px; }
.method-card p { color: var(--muted); font-size: 13.5px; margin: 8px 0 0; }
.wbar { height: 7px; background: rgba(255,255,255,.06); border-radius: 4px; margin-top: 12px; overflow: hidden; }
.wbar i { display: block; height: 100%; border-radius: 4px;
  background: linear-gradient(90deg, var(--teal), #7df9ec); }
.gatebox { border: 1px solid rgba(255,179,71,.45); background: var(--amber-dim);
  border-radius: var(--radius); padding: 18px 16px; margin-bottom: 12px; }
.gatebox h3 { font-family: "Orbitron", sans-serif; font-size: 15px; margin: 0 0 8px; color: var(--amber); }
.gatebox p { color: var(--muted); font-size: 13.5px; margin: 0 0 8px; }
.gatebox p:last-child { margin-bottom: 0; }
.gatebox strong { color: var(--ink); }
.formula { font-family: "IBM Plex Mono", monospace; color: var(--teal); font-size: 15px;
  background: rgba(0,0,0,.3); border: 1px solid var(--line-strong); border-radius: 8px;
  padding: 12px 14px; margin: 10px 0; }
.honest { border-left: 3px solid var(--amber); padding: 4px 0 4px 14px; margin: 18px 2px; }
.honest p { color: var(--muted); font-size: 13.5px; margin: 0; }
.honest strong { color: var(--ink); }

/* ---- Bottom tab bar ---- */
.tabbar { position: fixed; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 100%; max-width: 560px; z-index: 40;
  display: grid; grid-template-columns: repeat(5, 1fr);
  background: rgba(5, 9, 11, .94);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--line);
  padding-bottom: env(safe-area-inset-bottom); }
.tab { background: none; border: 0; color: var(--faint); cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 10px 0 8px; font-family: "IBM Plex Mono", monospace; font-size: 10px;
  letter-spacing: .14em; text-transform: uppercase; }
.tab.active { color: var(--teal); }
.tab svg { display: block; }

/* ---- Detail sheet ---- */
.sheet-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,.6); z-index: 60;
  opacity: 0; pointer-events: none; transition: opacity .2s; }
.sheet-backdrop.open { opacity: 1; pointer-events: auto; }
.sheet { position: fixed; left: 50%; transform: translateX(-50%) translateY(105%);
  bottom: 0; width: 100%; max-width: 560px; z-index: 61;
  max-height: 88dvh; overflow-y: auto; overscroll-behavior: contain;
  background: var(--surface-deep); border-radius: 20px 20px 0 0;
  border-top: 1px solid var(--line-strong);
  transition: transform .28s cubic-bezier(.2,.8,.2,1);
  padding-bottom: calc(24px + env(safe-area-inset-bottom)); }
.sheet.open { transform: translateX(-50%) translateY(0); }
.sheet-handle { width: 44px; height: 5px; border-radius: 3px; background: rgba(255,255,255,.18);
  margin: 10px auto 0; }
.sheet-close { position: absolute; top: 14px; right: 14px; background: rgba(255,255,255,.06);
  border: 1px solid var(--line); color: var(--muted); width: 34px; height: 34px;
  border-radius: 50%; font-size: 15px; cursor: pointer; }
.sheet-body { padding: 18px 20px 0; }
.sheet-body h2 { font-family: "Orbitron", sans-serif; font-size: 24px; margin: 0 0 2px; }
.sheet-body h2 .robot { color: var(--teal); }
.sheet-meta { font-family: "IBM Plex Mono", monospace; font-size: 11px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--faint); margin-bottom: 16px; }
.big-grade { display: flex; align-items: baseline; gap: 12px; margin: 4px 0 16px; }
.big-grade .n { font-family: "Orbitron", sans-serif; font-weight: 900; font-size: 56px; line-height: 1; }
.big-grade .cap { font-family: "IBM Plex Mono", monospace; font-size: 10px; letter-spacing: .2em;
  color: var(--faint); text-transform: uppercase; }
.vdetail { margin-bottom: 14px; }
.vdetail-top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 6px; }
.vdetail-name { font-family: "IBM Plex Mono", monospace; font-size: 11px; letter-spacing: .12em;
  text-transform: uppercase; }
.vdetail-name .vw { color: var(--faint); }
.vdetail-score { font-family: "IBM Plex Mono", monospace; font-size: 13px; font-weight: 600; color: var(--teal); }
.vdetail-score.gapsc { color: var(--amber); }
.vbar { height: 9px; background: rgba(255,255,255,.06); border-radius: 5px; overflow: hidden; }
.vbar i { display: block; height: 100%; border-radius: 5px;
  background: linear-gradient(90deg, var(--teal), #7df9ec); }
.vbar.is-gap { background: repeating-linear-gradient(45deg, rgba(255,179,71,.16) 0 8px, transparent 8px 16px); }
.vbar.is-gap i { display: none; }
.vev { color: var(--muted); font-size: 13px; margin: 7px 0 0; line-height: 1.55; }
.evsec { margin-top: 18px; }
.evsec h4 { font-family: "IBM Plex Mono", monospace; font-size: 10px; letter-spacing: .2em;
  text-transform: uppercase; color: var(--teal); margin: 0 0 10px; }
.evsec ul { list-style: none; margin: 0; padding: 0; }
.evsec li { font-size: 13.5px; color: var(--muted); padding: 10px 0; border-top: 1px solid var(--line); }
.evsec li strong { color: var(--ink); display: block; font-weight: 600; margin-bottom: 3px; }
.evsec li .src { font-family: "IBM Plex Mono", monospace; font-size: 10.5px; color: var(--faint);
  text-transform: uppercase; letter-spacing: .05em; }
.evsec.gaps h4 { color: var(--amber); }
.evsec.gaps li { color: var(--amber); }
.moves { margin-top: 18px; border: 1px solid var(--line-strong); border-radius: 10px;
  padding: 14px 16px; background: rgba(0,229,204,.04); }
.moves h4 { font-family: "IBM Plex Mono", monospace; font-size: 10px; letter-spacing: .2em;
  text-transform: uppercase; color: var(--amber); margin: 0 0 8px; }
.moves p { font-size: 13.5px; color: var(--muted); margin: 0; }
.gate-line { margin-top: 14px; font-family: "IBM Plex Mono", monospace; font-size: 11px;
  letter-spacing: .06em; color: var(--muted); text-transform: uppercase; line-height: 1.7; }
.gate-line b { color: var(--amber); }

.mission { text-align: center; padding: 34px 20px 8px; }
.mission p { font-family: "Orbitron", sans-serif; font-weight: 700; font-size: 19px; line-height: 1.35; margin: 0; }
.mission p em { color: var(--teal); font-style: normal; }
.mission span { display: block; margin-top: 10px; font-family: "IBM Plex Mono", monospace;
  font-size: 10px; letter-spacing: .22em; text-transform: uppercase; color: var(--faint); }
.app-foot { text-align: center; padding: 18px; font-family: "IBM Plex Mono", monospace;
  font-size: 10px; letter-spacing: .16em; text-transform: uppercase; color: var(--faint); }

@media (min-width: 600px) {
  main { padding-left: 24px; padding-right: 24px; }
  h1.vtitle { font-size: 38px; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}

/* ---- v2: Audit builder + Calculator ---- */
.tool-card { background: var(--surface); border: 1px solid var(--line-strong);
  border-radius: var(--radius); padding: 18px 16px; margin-bottom: 12px; }
.tool-card > h3 { font-family: "Orbitron", sans-serif; font-size: 15px; margin: 0 0 4px;
  display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.tool-card > h3 .vw { color: var(--amber); font-family: "IBM Plex Mono", monospace;
  font-size: 12px; font-weight: 400; white-space: nowrap; }
.tool-card .guide { color: var(--muted); font-size: 13px; margin: 0 0 12px; line-height: 1.55; }
.field { margin-bottom: 12px; }
.field:last-child { margin-bottom: 0; }
.flabel { display: block; font-family: "IBM Plex Mono", monospace; font-size: 10px;
  letter-spacing: .16em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.finput, .fselect, .ftextarea { width: 100%; background: rgba(0,0,0,.32);
  border: 1px solid var(--line-strong); border-radius: 10px; color: var(--ink);
  font-family: "Inter", system-ui, sans-serif; font-size: 15px; padding: 12px 14px; }
.finput:focus, .fselect:focus, .ftextarea:focus { outline: none; border-color: var(--teal);
  box-shadow: 0 0 0 2px rgba(0,229,204,.18); }
.ftextarea { min-height: 64px; resize: vertical; line-height: 1.5; }
.fselect { appearance: none; -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2300e5cc' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px; }
.frow { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.fhint { font-size: 12px; color: var(--faint); margin-top: 6px; line-height: 1.5; }
/* score slider */
.scorerow { display: flex; align-items: center; gap: 12px; }
input[type="range"].fslider { flex: 1; -webkit-appearance: none; appearance: none; height: 8px;
  border-radius: 4px; background: rgba(255,255,255,.08); outline: none; }
input[type="range"].fslider::-webkit-slider-thumb { -webkit-appearance: none; appearance: none;
  width: 26px; height: 26px; border-radius: 50%; background: var(--teal);
  border: 3px solid #04211d; box-shadow: 0 0 10px rgba(0,229,204,.5); cursor: pointer; }
input[type="range"].fslider::-moz-range-thumb { width: 22px; height: 22px; border-radius: 50%;
  background: var(--teal); border: 3px solid #04211d; cursor: pointer; }
.score-num { font-family: "Orbitron", sans-serif; font-weight: 800; font-size: 24px;
  min-width: 52px; text-align: right; color: var(--teal); }
/* segmented control */
.seg { display: flex; background: rgba(0,0,0,.32); border: 1px solid var(--line-strong);
  border-radius: 10px; padding: 4px; gap: 4px; }
.seg button { flex: 1; background: none; border: 0; color: var(--muted); cursor: pointer;
  font-family: "IBM Plex Mono", monospace; font-size: 10.5px; letter-spacing: .08em;
  text-transform: uppercase; padding: 10px 4px; border-radius: 7px; }
.seg button.active { background: var(--teal); color: #04211d; font-weight: 700; }
.seg button.active.warn { background: var(--amber); }
.seg button.active.bad { background: var(--danger); color: #2a0a0a; }
/* status pill */
.pill { display: inline-block; font-family: "IBM Plex Mono", monospace; font-size: 9.5px;
  letter-spacing: .14em; text-transform: uppercase; border-radius: 4px; padding: 4px 10px;
  border: 1px solid; }
.pill.sourced { color: var(--teal); border-color: rgba(0,229,204,.5); background: var(--teal-dim); }
.pill.claimed { color: var(--amber); border-color: rgba(255,179,71,.5); background: var(--amber-dim); }
.pill.gap { color: var(--faint); border-color: rgba(255,255,255,.16); }
/* buttons */
.btn { display: block; width: 100%; background: var(--teal); color: #04211d; border: 0;
  border-radius: 12px; padding: 16px; font-family: "Orbitron", sans-serif; font-weight: 800;
  font-size: 15px; letter-spacing: .06em; text-transform: uppercase; cursor: pointer;
  margin: 6px 0 12px; }
.btn:active { transform: scale(.985); }
.btn-ghost { display: block; width: 100%; background: transparent; color: var(--teal);
  border: 1px solid var(--line-strong); border-radius: 12px; padding: 13px;
  font-family: "IBM Plex Mono", monospace; font-size: 11px; letter-spacing: .12em;
  text-transform: uppercase; cursor: pointer; margin-bottom: 10px; }
.btn-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.btn-row .btn-ghost { margin-bottom: 0; }
/* results */
.result-hero { text-align: center; padding: 26px 16px 20px; background: var(--surface);
  border: 1px solid var(--line-strong); border-radius: var(--radius); margin-bottom: 12px;
  position: relative; overflow: hidden; }
.result-hero::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--teal), var(--amber)); }
.result-hero .rscore { font-family: "Orbitron", sans-serif; font-weight: 900; font-size: 72px;
  line-height: 1; }
.result-hero .rcap { font-family: "IBM Plex Mono", monospace; font-size: 10px;
  letter-spacing: .22em; text-transform: uppercase; color: var(--faint); margin-top: 8px; }
.result-hero .rflags { display: flex; gap: 8px; justify-content: center; margin-top: 12px;
  flex-wrap: wrap; }
.verdict-box { border-left: 3px solid var(--teal); background: var(--surface);
  border-radius: 0 10px 10px 0; padding: 14px 16px; margin-bottom: 12px; }
.verdict-box.amber { border-left-color: var(--amber); }
.verdict-box p { margin: 0 0 8px; font-size: 14px; color: var(--ink); line-height: 1.6; }
.verdict-box p:last-child { margin-bottom: 0; }
.verdict-box .vlab { font-family: "IBM Plex Mono", monospace; font-size: 10px;
  letter-spacing: .2em; text-transform: uppercase; color: var(--teal); margin-bottom: 8px; }
.verdict-box.amber .vlab { color: var(--amber); }
/* stat grid (calculator outputs) */
.statgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 12px; }
.stat { background: var(--surface); border: 1px solid var(--line-strong);
  border-radius: var(--radius); padding: 16px 14px; }
.stat .sval { font-family: "Orbitron", sans-serif; font-weight: 800; font-size: 24px;
  line-height: 1.1; margin-bottom: 4px; }
.stat .sval.teal { color: var(--teal); }
.stat .sval.amber { color: var(--amber); }
.stat .slab { font-family: "IBM Plex Mono", monospace; font-size: 9.5px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--muted); line-height: 1.5; }
/* saved items */
.saved-item { background: var(--surface); border: 1px solid var(--line);
  border-radius: 10px; padding: 12px 14px; margin-bottom: 8px; display: flex;
  align-items: center; gap: 12px; cursor: pointer; }
.saved-item:active { transform: scale(.985); }
.saved-item .sname { font-weight: 700; font-size: 14.5px; flex: 1; min-width: 0;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.saved-item .smeta { font-family: "IBM Plex Mono", monospace; font-size: 10px;
  color: var(--faint); text-transform: uppercase; letter-spacing: .08em; }
.saved-item .sdel { background: none; border: 0; color: var(--faint); font-size: 16px;
  cursor: pointer; padding: 6px; }
.saved-item .sdel:active { color: var(--danger); }
.exchips { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 4px; margin: 0 2px 14px; }
.refline { font-family: "IBM Plex Mono", monospace; font-size: 10.5px; color: var(--faint);
  letter-spacing: .06em; text-transform: uppercase; margin: 4px 2px 12px; line-height: 1.7; }
.refline b { color: var(--teal); }

/* ---- Breakthroughs weekly briefing ---- */
.bted { background: var(--surface); border: 1px solid var(--line-strong); border-radius: var(--radius);
  padding: 18px 16px; margin: 0 2px 16px; position: relative; overflow: hidden; }
.bted::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--teal), var(--amber)); }
.bted-label { font-family: "IBM Plex Mono", monospace; font-size: 10px; letter-spacing: .2em;
  text-transform: uppercase; color: var(--teal); margin-bottom: 6px; }
.bted-title { font-family: "Orbitron", sans-serif; font-size: 20px; font-weight: 800; margin: 0 0 8px; }
.bted-intro { color: var(--muted); font-size: 13.5px; line-height: 1.6; margin: 0 0 12px; }
.bthead { font-size: 17px; font-weight: 700; line-height: 1.35; letter-spacing: -.01em; margin: 6px 0 4px; }
.btdate { font-family: "IBM Plex Mono", monospace; font-size: 10.5px; letter-spacing: .08em;
  color: var(--faint); margin-bottom: 10px; }
.btspin { font-size: 13.5px; line-height: 1.55; color: var(--muted); margin: 0 0 8px; }
.btspin .btwho { color: var(--ink); font-weight: 600; }
.btspin .bt-receipt { color: var(--teal); }
.btsig { font-size: 13.5px; line-height: 1.55; color: var(--muted); margin: 0 0 10px; }
.btsig strong { color: var(--amber); font-weight: 600; }
.btsrc { display: inline-block; font-family: "IBM Plex Mono", monospace; font-size: 11px;
  letter-spacing: .04em; color: var(--teal); text-decoration: none; }
.btsrc:active { opacity: .7; }
.btarch { display: flex; align-items: center; gap: 10px; width: 100%; text-align: left;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 13px 14px; margin: 0 2px 10px; color: var(--ink); cursor: pointer; }
.btarch:active { transform: scale(.985); }
.btarch-label { font-weight: 700; font-size: 15px; }
.btarch-meta { font-family: "IBM Plex Mono", monospace; font-size: 10px; letter-spacing: .06em;
  color: var(--faint); }
.btarch .chev { margin-left: auto; }