/* ============================================================
   CELL PUBLISHING — Design System v4
   Clean white premium. Space Grotesk display, Manrope body,
   emerald→blue gradient accent, soft-shadow cards, bento.
   ============================================================ */

/* ---------- 1. TOKENS ---------- */
:root{
  /* ground — white */
  --paper:        #FFFFFF;
  --paper-soft:   #F6F9F8;
  --paper-tint:   #EDF3F1;

  /* text */
  --ink:          #0A1620;
  --ink-soft:     #2E4049;
  --muted:        #5C6E74;
  --muted-light:  #93A3A8;

  /* rules + surfaces */
  --line:         rgba(10,22,32,.10);
  --line-strong:  rgba(10,22,32,.18);
  --surf:         #FFFFFF;
  --surf-hi:      #F2F7F5;

  /* accent — emerald → blue */
  --lume:         #00B879;
  --acc2:         #0796EA;
  --lume-deep:    #00895B;
  --lume-ink:     #FFFFFF;
  --lume-glow:    rgba(0,184,121,.30);
  --lume-wash:    rgba(0,184,121,.08);
  --grad:         linear-gradient(92deg, #00C98A, #0796EA);

  /* shadows */
  --shadow-sm:    0 2px 8px rgba(10,22,32,.05);
  --shadow-md:    0 12px 34px rgba(10,22,32,.08);
  --shadow-lg:    0 24px 60px rgba(10,22,32,.12);

  /* type */
  --display: "STIX Two Text", "Iowan Old Style", Georgia, serif;
  --sans:    "IBM Plex Sans", "Segoe UI", sans-serif;
  --mono:    "IBM Plex Sans", "Segoe UI", sans-serif;
  --serif:   "STIX Two Text", Georgia, serif;

  /* motion */
  --ease:       cubic-bezier(.22,.61,.24,1);
  --ease-sharp: cubic-bezier(.65,0,.20,1);
  --ease-out:   cubic-bezier(.16,1,.30,1);

  /* radii */
  --r-xl: 28px;
  --r-lg: 22px;
  --r:    16px;
  --r-sm: 10px;
  --r-pill: 999px;

  /* metrics */
  --shell: 1320px;
  --pad:   44px;
  --nav-h: 74px;
}

/* ---------- 2. RESET ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; scroll-padding-top:var(--nav-h); }
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-weight:500;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
body::before{
  content:""; position:fixed; inset:0; z-index:-1;
  background:
    radial-gradient(52% 38% at 86% -6%,  rgba(0,201,138,.09), transparent 62%),
    radial-gradient(48% 40% at -8% 30%,  rgba(7,150,234,.07), transparent 60%),
    var(--paper);
  pointer-events:none;
}
img,svg{ display:block; max-width:100%; }
h1,h2,h3,h4,p,figure,blockquote,dl,dd{ margin:0; }
ul,ol{ margin:0; padding:0; list-style:none; }
a{ color:inherit; text-decoration:none; }
button{ font:inherit; color:inherit; background:none; border:0; }
::selection{ background:#00C98A; color:#fff; }

.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--pad);
}
.rules{ display:none; }

.scan-progress{
  position:fixed; top:0; left:0; right:0; height:3px;
  z-index:60; background:transparent;
}
.scan-progress i{
  display:block; height:100%; width:0%;
  background:var(--grad);
  transition:width .08s linear;
}

/* ---------- 3. TYPE ---------- */
.tag,.label{
  font-family:var(--sans);
  font-size:10.5px;
  font-weight:700;
  letter-spacing:.15em;
  text-transform:uppercase;
  color:var(--muted);
  display:inline-flex; align-items:center; gap:9px;
  line-height:1.4;
}
.label-lume{ color:var(--lume-deep); }
.tag-live{ color:var(--lume-deep); }
.tag-feat{
  background:var(--grad);
  color:#fff;
  padding:6px 12px;
  border-radius:var(--r-pill);
  align-self:flex-start;
}

.chip{
  display:inline-flex; align-items:center; gap:10px;
  padding:9px 16px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  background:var(--surf);
  box-shadow:var(--shadow-sm);
  font-size:11.5px; font-weight:700;
  letter-spacing:.12em; text-transform:uppercase;
  color:var(--ink-soft);
}
.chip-dot,.tick-dot{
  width:7px; height:7px; border-radius:50%;
  background:var(--grad);
  animation:pulse 2.6s var(--ease) infinite;
}
@keyframes pulse{
  0%,100%{ opacity:1; }
  50%{ opacity:.35; }
}

.display{
  font-family:var(--display);
  font-weight:700;
  font-size:clamp(2.8rem, 6vw, 5.4rem);
  line-height:1.04;
  letter-spacing:-.012em;
  color:var(--ink);
}
.grad{
  background:var(--grad);
  -webkit-background-clip:text; background-clip:text;
  color:transparent;
}
.h2{
  font-family:var(--display);
  font-weight:700;
  font-size:clamp(1.9rem, 3.4vw, 2.9rem);
  line-height:1.1;
  letter-spacing:-.01em;
  color:var(--ink);
}
.h2 em{ font-style:normal; }
.deck{
  font-size:clamp(1.02rem, 1.25vw, 1.15rem);
  font-weight:500;
  line-height:1.72;
  color:var(--ink-soft);
  max-width:54ch;
}
.sec-note{
  max-width:50ch;
  color:var(--muted);
  font-size:15px;
  font-weight:500;
  line-height:1.74;
}
.mono-num{ font-variant-numeric:tabular-nums; }

/* ---------- 4. BUTTONS ---------- */
.btn{
  position:relative;
  display:inline-flex; align-items:center; justify-content:center; gap:12px;
  padding:16px 26px;
  background:var(--grad);
  color:#fff;
  font-family:var(--sans);
  font-size:14.5px; font-weight:700;
  letter-spacing:.005em;
  border:0;
  border-radius:var(--r);
  box-shadow:0 10px 28px rgba(0,184,121,.25);
  cursor:pointer;
  transition:box-shadow .32s var(--ease-sharp),
             transform .32s var(--ease-sharp),
             filter .32s var(--ease-sharp);
}
.btn:hover{
  box-shadow:0 14px 40px rgba(0,184,121,.35);
  transform:translateY(-2px);
  filter:brightness(1.04);
}
.btn:active{ transform:translateY(0); }
.btn .btn-ar{
  display:inline-block;
  transition:transform .34s var(--ease-sharp);
}
.btn:hover .btn-ar{ transform:translateX(4px); }

.btn-ghost{
  background:var(--surf);
  color:var(--ink);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-sm);
}
.btn-ghost:hover{
  border-color:var(--lume);
  color:var(--lume-deep);
  box-shadow:0 10px 28px rgba(0,184,121,.14);
  filter:none;
}
.btn-dark{
  background:var(--ink);
  color:#fff;
  box-shadow:0 12px 34px rgba(10,22,32,.3);
}
.btn-dark:hover{
  filter:none;
  box-shadow:0 16px 44px rgba(10,22,32,.4);
}
.btn-sm{ padding:12px 18px; font-size:13px; }
.btn-full{ width:100%; justify-content:space-between; }

.link-lume{
  display:inline-flex; align-items:center; gap:9px;
  font-size:14px; font-weight:700;
  color:var(--lume-deep);
  padding-bottom:4px;
  background-image:linear-gradient(var(--lume),var(--lume));
  background-repeat:no-repeat;
  background-position:0 100%;
  background-size:0% 2px;
  transition:background-size .42s var(--ease-sharp);
}
.link-lume:hover{ background-size:100% 2px; }
.link-lume:hover .btn-ar{ transform:translateX(4px); }
.link-lume .btn-ar{ transition:transform .34s var(--ease-sharp); }

:focus-visible{
  outline:2px solid var(--lume);
  outline-offset:3px;
  border-radius:6px;
}

/* ---------- 5. NAV ---------- */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:50;
  height:var(--nav-h);
  border-bottom:1px solid transparent;
  transition:background .4s var(--ease), border-color .4s var(--ease), box-shadow .4s var(--ease);
}
.nav.stuck{
  background:rgba(255,255,255,.85);
  backdrop-filter:blur(16px) saturate(1.4);
  -webkit-backdrop-filter:blur(16px) saturate(1.4);
  border-bottom-color:var(--line);
  box-shadow:0 6px 24px rgba(10,22,32,.05);
}
.nav-inner{
  height:100%;
  display:flex; align-items:center; justify-content:space-between; gap:28px;
}
.mark{ display:inline-flex; align-items:center; gap:11px; }
.mark-dot{
  width:12px; height:12px;
  border-radius:50%;
  background:var(--grad);
  box-shadow:0 0 12px var(--lume-glow);
}
.mark-dot::after{ content:none; }
.mark-text{
  font-family:var(--display);
  font-size:17px; font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink);
}
.nav-links{ display:flex; gap:4px; }
.nav-links a{
  font-size:14px; font-weight:700;
  color:var(--muted);
  padding:9px 15px;
  border-radius:var(--r-pill);
  transition:color .3s var(--ease-sharp), background .3s var(--ease-sharp);
}
.nav-links a .nlx{ display:none; }
.nav-links a:hover{ color:var(--ink); background:var(--surf-hi); }

/* ---------- 6. HERO ---------- */
.hero{ position:relative; padding-top:calc(var(--nav-h) + 76px); }
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:56px;
  align-items:center;
  padding-bottom:88px;
}
.hero-copy > * + *{ margin-top:28px; }
.display{ margin-top:24px !important; }
.hero-actions{ display:flex; flex-wrap:wrap; gap:14px; align-items:center; }

.hero-stats{
  display:flex; flex-wrap:wrap; gap:0;
  margin-top:42px !important;
  border-top:1px solid var(--line);
  padding-top:24px;
}
.hero-stats li{
  display:flex; flex-direction:column; gap:5px;
  padding-right:32px; margin-right:32px;
  border-right:1px solid var(--line);
}
.hero-stats li:last-child{ border-right:0; padding-right:0; margin-right:0; }
.hero-stats b{
  font-family:var(--display); font-weight:700;
  font-size:22px; line-height:1; letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
  white-space:nowrap;
}
.hero-stats span{
  font-size:11px; font-weight:700; letter-spacing:.13em;
  text-transform:uppercase; color:var(--muted-light);
}

/* dynamic featured book */
.hero-object{
  position:relative;
  display:flex; align-items:center; justify-content:center;
  min-height:540px;
}
.halo{
  position:absolute;
  width:min(460px, 82vw); height:min(460px, 82vw);
  border-radius:50%;
  background:radial-gradient(circle, rgba(0,201,138,.14) 0%, rgba(7,150,234,.07) 46%, transparent 70%);
  filter:blur(18px);
}
.hero-book{
  position:relative;
  width:min(330px, 76vw);
  transform:rotate(-6deg);
  transition:transform .8s var(--ease-out);
}
.hero-book:hover{ transform:rotate(-3deg) translateY(-6px); }
.hero-book .cover-lg{ width:100%; box-shadow:0 34px 80px rgba(10,22,32,.28), 0 0 0 1px rgba(10,22,32,.06); }
.book-tag{
  position:absolute; right:-20px; bottom:32px;
  display:flex; flex-direction:column; gap:2px;
  padding:14px 20px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r);
  box-shadow:var(--shadow-lg);
  transform:rotate(6deg);
}
.book-tag b{
  font-family:var(--display); font-weight:700;
  font-size:24px; letter-spacing:-.02em;
}
.book-tag span{
  font-size:10px; font-weight:700; letter-spacing:.12em;
  text-transform:uppercase; color:var(--muted);
}

/* ticker */
.ticker{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  overflow:hidden;
  background:var(--paper-soft);
  padding-block:15px;
  position:relative; z-index:2;
}
.ticker-track{
  display:flex; gap:0; width:max-content;
  animation:march 46s linear infinite;
}
.ticker-track span{
  font-family:var(--display);
  font-size:11.5px; font-weight:600; letter-spacing:.18em; text-transform:uppercase;
  color:var(--muted);
  padding-inline:26px;
  display:inline-flex; align-items:center; gap:26px;
  white-space:nowrap;
}
.ticker-track span::after{
  content:"+"; color:var(--lume); opacity:.85;
}
@keyframes march{ to{ transform:translateX(-50%); } }

/* ---------- 7. BANDS ---------- */
.band{
  position:relative; z-index:2;
  padding-block:100px;
}
.band-alt{ background:var(--paper-soft); border-block:1px solid var(--line); }
.sec-head{ margin-bottom:54px; }
.sec-head .h2{ margin-top:22px; }
.sec-head .sec-note{ margin-top:24px; }
.sec-head-split{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,.75fr);
  gap:48px; align-items:end;
}
.sec-note-r{ margin-top:0; }

/* ---------- 8. FEATURE CARDS ---------- */
.features{
  display:grid; grid-template-columns:repeat(4,1fr);
  gap:18px;
}
.fcard{
  display:flex; flex-direction:column; gap:12px;
  padding:28px 26px;
  background:var(--surf);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-sm);
  transition:transform .4s var(--ease-sharp), box-shadow .4s var(--ease-sharp), border-color .4s var(--ease-sharp);
}
.fcard:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  border-color:var(--line-strong);
}
.fnum{
  font-family:var(--display); font-weight:700;
  font-size:30px; line-height:1;
  background:var(--grad);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.fcard h3{
  font-family:var(--display); font-weight:700;
  font-size:1.2rem; letter-spacing:-.02em;
}
.fcard p{ font-size:14px; color:var(--muted); line-height:1.66; flex:1; }
.fcard .link-lume{ font-size:13px; }

/* ---------- 9. BENTO ---------- */
.bento{
  display:grid;
  grid-template-columns:1.05fr 1fr 1fr;
  gap:18px;
}
.tile{
  position:relative;
  background:var(--surf);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:24px;
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:border-color .4s var(--ease-sharp), transform .4s var(--ease-sharp), box-shadow .4s var(--ease-sharp);
}
.tile:hover{
  border-color:var(--line-strong);
  transform:translateY(-3px);
  box-shadow:var(--shadow-md);
}
.tile-head{
  display:flex; justify-content:space-between; align-items:center;
  margin-bottom:14px;
}
.tile-cap{
  margin-top:14px;
  font-size:12px; font-weight:600; color:var(--muted);
}

.tile-helix{
  grid-row:span 2;
  display:flex; flex-direction:column;
  cursor:crosshair;
  background:
    radial-gradient(60% 52% at 50% 46%, rgba(0,201,138,.07), transparent 72%),
    var(--surf);
}
.tile-helix #helix{
  flex:1; width:100%; max-width:320px; height:auto;
  margin-inline:auto; position:relative; z-index:1;
}
.rec-dot{
  width:6px; height:6px; border-radius:50%;
  background:var(--lume);
  animation:pulse 1.6s steps(1,end) infinite;
}

/* reticle */
.reticle{
  position:absolute; inset:0; pointer-events:none;
  opacity:0; transition:opacity .3s var(--ease-sharp);
  z-index:3;
}
.scope-viz:hover .reticle{ opacity:1; }
.reticle .r-h,.reticle .r-v{ position:absolute; background:var(--lume); opacity:.5; }
.reticle .r-h{ left:0; right:0; height:1px; transform:translateY(var(--ry,0px)); }
.reticle .r-v{ top:0; bottom:0; width:1px; transform:translateX(var(--rx,0px)); }
.r-read{
  position:absolute; left:0; top:0;
  transform:translate(calc(var(--rx,0px) + 12px), calc(var(--ry,0px) + 10px));
  font-family:var(--display); font-size:10px; font-weight:600; letter-spacing:.08em;
  color:var(--lume-deep);
  background:#fff; padding:4px 9px;
  border:1px solid var(--line-strong);
  border-radius:7px;
  box-shadow:var(--shadow-sm);
  font-variant-numeric:tabular-nums;
  white-space:nowrap;
}
.rung.hot{ stroke:var(--lume) !important; }
.node.hot{ fill:var(--lume); }
.scope-corner,.scope-cap{ display:none; }

/* meters */
.mlbl{ font-size:13px; font-weight:700; color:var(--ink-soft); }
.ro-meters{ margin-top:14px; display:grid; gap:18px; }
.tile-meters .ro-meters{ margin-top:16px; }
.meter{ display:grid; grid-template-columns:1fr auto; gap:9px 14px; align-items:center; }
.meter-track{
  grid-column:1/-1; order:3;
  display:block; height:7px;
  background:var(--paper-tint);
  border-radius:4px;
  position:relative;
  overflow:visible;
}
.meter-track b{
  position:absolute; inset:0 auto 0 0; width:0;
  background:var(--grad);
  border-radius:4px;
  transition:width 1.15s var(--ease-sharp);
}
.meter.on .meter-track b{ width:var(--w,0%); }
.meter-val{
  font-family:var(--display); font-weight:600;
  font-size:13px; color:var(--ink);
  font-variant-numeric:tabular-nums;
}

/* chart */
.ro-chart #plot{ width:100%; height:auto; overflow:visible; margin-top:4px; }
#plotLine{ stroke:var(--lume) !important; stroke-dasharray:1; stroke-dashoffset:1; }
.ro-chart.on #plotLine{ animation:draw 1.5s var(--ease-sharp) forwards; }
.ro-chart.on #plotArea{ animation:fade .9s .55s var(--ease) forwards; }
.ro-chart.on #plotDot{ animation:fade .4s 1.3s var(--ease) forwards, pulse 2.2s 1.7s var(--ease) infinite; }
@keyframes draw{ to{ stroke-dashoffset:0; } }
@keyframes fade{ to{ opacity:1; } }

/* counters */
.ro-counters{ display:grid; gap:16px; }
.ro-counters > div{
  display:flex; flex-direction:column; gap:4px;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
}
.ro-counters > div:last-child{ border-bottom:0; padding-bottom:0; }
.ro-counters b{
  font-family:var(--display); font-weight:700;
  font-size:34px; line-height:1; letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
  background:var(--grad);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.ro-counters span{
  font-size:11px; font-weight:700; letter-spacing:.13em;
  text-transform:uppercase; color:var(--muted-light);
}

/* list */
.ro-list{ margin-top:14px; }
.ro-list li{
  display:flex; justify-content:space-between; align-items:baseline; gap:16px;
  padding:11px 0; border-bottom:1px solid var(--line);
}
.ro-list li:last-child{ border-bottom:0; }
.ro-list span{
  font-size:11px; font-weight:700; letter-spacing:.13em;
  text-transform:uppercase; color:var(--muted-light);
}
.ro-list b{
  font-family:var(--display); font-weight:600;
  font-size:13px; color:var(--ink);
  font-variant-numeric:tabular-nums; text-align:right;
}

/* quote tile */
.tile-quote{
  grid-column:1/-1;
  padding:36px 40px;
  display:grid; gap:10px;
}
.tq-mark{
  font-family:var(--display); font-weight:700;
  font-size:60px; line-height:.6;
  background:var(--grad);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.tq-text{
  font-family:var(--display); font-weight:500;
  font-size:clamp(1.25rem, 2.3vw, 1.7rem);
  line-height:1.42; letter-spacing:-.015em;
  color:var(--ink);
  max-width:32em;
}
.tq-who{
  margin-top:8px;
  font-size:12px; font-weight:700; letter-spacing:.13em;
  text-transform:uppercase; color:var(--muted);
}

/* ---------- 10. CHAPTER BROWSER ---------- */
.toc{ display:block; }
.toc-list{
  display:flex; flex-wrap:wrap; gap:10px;
  margin-bottom:22px;
}
.ch{
  display:inline-flex; align-items:center; gap:11px;
  padding:12px 19px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  background:var(--surf);
  box-shadow:var(--shadow-sm);
  cursor:pointer;
  transition:border-color .35s var(--ease-sharp), background .35s var(--ease-sharp),
             box-shadow .35s var(--ease-sharp), transform .35s var(--ease-sharp);
}
.ch:hover{ border-color:var(--line-strong); transform:translateY(-1px); }
.ch::before{ content:none; }
.ch-num{
  font-family:var(--display); font-weight:700;
  font-size:11px; letter-spacing:.06em;
  color:var(--muted-light);
  transition:color .3s var(--ease-sharp);
}
.ch-title{
  font-size:14px; font-weight:700;
  color:var(--ink-soft);
  transition:color .3s var(--ease-sharp);
}
.ch-title em{ font-style:normal; }
.ch-page{ display:none; }
.ch.active{
  background:var(--grad);
  border-color:transparent;
  box-shadow:0 8px 24px rgba(0,184,121,.28);
}
.ch.active .ch-num{ color:rgba(255,255,255,.72); }
.ch.active .ch-title{ color:#fff; }

.toc-frame{
  display:grid;
  grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  overflow:hidden;
  background:var(--surf);
  box-shadow:var(--shadow-md);
}
.frame-top{
  grid-column:1/-1;
  display:flex; justify-content:space-between; align-items:center;
  padding:17px 28px; border-bottom:1px solid var(--line);
}
.frame-viz{
  position:relative;
  min-height:380px;
  display:flex; align-items:center; justify-content:center;
  padding:30px;
  overflow:hidden;
  border-right:1px solid var(--line);
  background:radial-gradient(62% 58% at 50% 46%, rgba(0,201,138,.07), transparent 72%), var(--paper-soft);
}
.frame-viz svg.plate{ width:82%; max-width:360px; height:auto; overflow:visible; position:relative; z-index:1; }
.frame-scan{
  position:absolute; left:0; right:0; top:0; height:34%; z-index:2;
  background:linear-gradient(180deg, transparent, rgba(0,184,121,.12) 60%, transparent);
  opacity:0; pointer-events:none;
}
.frame-viz.swap .frame-scan{ animation:scan .62s var(--ease-sharp); }
@keyframes scan{
  0%{ opacity:1; transform:translateY(-120%); }
  100%{ opacity:0; transform:translateY(360%); }
}
.frame-viz.swap svg.plate{ animation:wipe .5s var(--ease-sharp); }
@keyframes wipe{
  0%{ clip-path:inset(0 100% 0 0); opacity:.4; }
  100%{ clip-path:inset(0 0 0 0); opacity:1; }
}
.plate .d{ stroke-dasharray:1; stroke-dashoffset:1; animation:draw .85s var(--ease-sharp) forwards; }
.plate .f{ opacity:0; animation:fade .5s var(--ease) forwards; }
.plate .lume{ stroke:var(--lume); }
.plate .lume-f{ fill:var(--lume); }

.frame-body{ padding:30px 34px 34px; }
.frame-title{
  font-family:var(--display); font-weight:700;
  font-size:1.65rem; line-height:1.1; letter-spacing:-.022em;
}
.frame-title em{ font-style:normal; color:var(--lume-deep); }
.frame-abstract{
  margin-top:14px; color:var(--muted);
  font-size:14.5px; font-weight:500; line-height:1.7;
}
.frame-meta{
  margin-top:24px; padding-top:18px;
  border-top:1px solid var(--line);
  display:grid; grid-template-columns:repeat(3,1fr); gap:10px;
  margin-bottom:26px;
}
.frame-meta dt{
  font-size:9.5px; font-weight:700; letter-spacing:.15em;
  text-transform:uppercase; color:var(--muted-light); margin-bottom:6px;
}
.frame-meta dd{
  font-family:var(--display); font-weight:600;
  font-size:14px; color:var(--ink);
  font-variant-numeric:tabular-nums;
}
.frame-body.swap .frame-title,
.frame-body.swap .frame-abstract,
.frame-body.swap .frame-meta{ animation:rise .5s var(--ease-sharp); }
@keyframes rise{
  0%{ opacity:0; transform:translateY(7px); }
  100%{ opacity:1; transform:translateY(0); }
}

/* ---------- 11. PRESS ---------- */
.press{
  display:grid; grid-template-columns:repeat(3,1fr);
  gap:18px;
}
.press blockquote{
  padding:32px 30px;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--surf);
  box-shadow:var(--shadow-sm);
  display:flex; flex-direction:column; gap:26px;
  transition:border-color .4s var(--ease-sharp), transform .4s var(--ease-sharp), box-shadow .4s var(--ease-sharp);
}
.press blockquote:hover{
  border-color:var(--line-strong);
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
}
.press p{
  font-size:16.5px; font-weight:600;
  line-height:1.62;
  color:var(--ink-soft);
}
.press p::before{ content:"\201C"; color:var(--lume); }
.press p::after{ content:"\201D"; color:var(--lume); }
.press footer{ margin-top:auto; }

/* ---------- 12. AUTHOR / TEASER ---------- */
.auth{
  display:grid;
  grid-template-columns:minmax(0,.62fr) minmax(0,1fr);
  gap:64px;
  align-items:center;
}
.auth-card{
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  background:var(--surf);
  padding:30px 30px 22px;
  position:relative;
  box-shadow:var(--shadow-md);
}
.dish{ width:100%; height:auto; }
.auth-card-cap{ margin-top:16px; color:var(--muted-light); }
.colony{ opacity:0; animation:fade .6s var(--ease) forwards; }
.auth-cv{ display:none; }
.auth-name{ margin-top:22px; margin-bottom:26px; }
.auth-lede{ display:none; }
.auth-bio{
  margin-top:18px; color:var(--muted);
  font-size:15.5px; font-weight:500; line-height:1.78; max-width:58ch;
}
.auth-bio em{ font-style:normal; font-weight:700; color:var(--ink-soft); }
.auth-sig{ display:none; }
.auth-facts{
  display:flex; gap:0;
  margin-top:32px;
  border-top:1px solid var(--line);
  padding-top:22px;
}
.auth-facts li{
  display:flex; flex-direction:column; gap:5px;
  padding-right:32px; margin-right:32px;
  border-right:1px solid var(--line);
}
.auth-facts li:last-child{ border-right:0; margin-right:0; padding-right:0; }
.auth-facts b{
  font-family:var(--display); font-weight:700;
  font-size:24px; line-height:1; letter-spacing:-.02em;
  background:var(--grad);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.auth-facts span{
  font-size:11px; font-weight:700; letter-spacing:.13em;
  text-transform:uppercase; color:var(--muted-light);
}
.auth-actions{ margin-top:30px; display:flex; gap:14px; flex-wrap:wrap; }

/* ---------- 13. FAQ ---------- */
.faq{ max-width:820px; }
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--r);
  background:var(--surf);
  box-shadow:var(--shadow-sm);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .3s var(--ease-sharp);
}
.faq-item.open{ border-color:var(--line-strong); }
.faq-q{
  width:100%;
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  padding:19px 22px;
  font-size:15px; font-weight:700;
  text-align:left;
  cursor:pointer;
  color:var(--ink);
}
.faq-q::after{
  content:"+";
  font-family:var(--display); font-weight:700; font-size:20px;
  color:var(--lume-deep);
  transition:transform .35s var(--ease-sharp);
}
.faq-item.open .faq-q::after{ transform:rotate(45deg); }
.faq-a{
  display:grid; grid-template-rows:0fr;
  transition:grid-template-rows .4s var(--ease-sharp);
}
.faq-a > div{ overflow:hidden; }
.faq-a p{
  padding:0 22px 20px;
  font-size:14.5px; color:var(--muted); line-height:1.72;
}

/* ---------- 14. CTA BANNER ---------- */
.cta-banner{
  display:flex; align-items:center; justify-content:space-between; gap:36px;
  flex-wrap:wrap;
  background:var(--grad);
  color:#fff;
  border-radius:32px;
  padding:clamp(36px, 5vw, 60px);
  margin-bottom:92px;
  box-shadow:0 30px 80px rgba(0,184,121,.28);
}
.cta-title{
  font-family:var(--display); font-weight:700;
  font-size:clamp(2rem, 4.4vw, 3.3rem);
  line-height:1; letter-spacing:-.028em;
}
.cta-sub{
  margin-top:14px;
  font-size:15px; font-weight:700;
  color:rgba(255,255,255,.85);
}

/* ---------- 15. INTERIOR PAGES ---------- */
.page-head{
  padding-top:calc(var(--nav-h) + 72px);
  padding-bottom:56px;
}
.page-head .display{ margin-top:24px; }
.page-head .deck{ margin-top:26px; }

.split{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;
  align-items:start;
}

.ccards{
  display:grid; grid-template-columns:1fr; gap:14px;
}
.ccard{
  display:flex; flex-direction:column; gap:8px;
  padding:24px 26px;
  background:var(--surf);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-sm);
  transition:transform .35s var(--ease-sharp), box-shadow .35s var(--ease-sharp), border-color .35s var(--ease-sharp);
}
.ccard:hover{ transform:translateY(-3px); box-shadow:var(--shadow-md); border-color:var(--line-strong); }
.ccard h3{
  font-family:var(--display); font-weight:700;
  font-size:1.15rem; letter-spacing:-.015em;
}
.ccard p{ font-size:14px; color:var(--muted); line-height:1.64; }
.ccard .link-lume{ margin-top:4px; font-size:13.5px; }

.form-card{
  padding:30px;
  background:var(--surf);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  box-shadow:var(--shadow-md);
}
.field{ display:grid; gap:8px; margin-bottom:18px; }
.field label{
  font-size:10.5px; font-weight:700; letter-spacing:.14em;
  text-transform:uppercase; color:var(--muted);
}
.field input,.field select,.field textarea{
  width:100%;
  font-family:var(--sans);
  font-size:15px; font-weight:500;
  color:var(--ink);
  background:#fff;
  border:1px solid var(--line-strong);
  border-radius:12px;
  padding:13px 16px;
  transition:border-color .3s var(--ease-sharp), box-shadow .3s var(--ease-sharp);
}
.field textarea{ min-height:130px; resize:vertical; }
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--lume);
  box-shadow:0 0 0 3px rgba(0,184,121,.14);
}
.form-note{
  margin-top:14px;
  font-size:12.5px; font-weight:600; color:var(--muted);
}
.form-note b{ color:var(--lume-deep); }

.authors-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:18px;
}
.acard{
  display:flex; flex-direction:column; gap:10px;
  padding:26px;
  background:var(--surf);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-sm);
  transition:transform .35s var(--ease-sharp), box-shadow .35s var(--ease-sharp);
}
.acard:hover{ transform:translateY(-4px); box-shadow:var(--shadow-md); }
.avatar{
  width:52px; height:52px;
  border-radius:50%;
  background:var(--grad);
  color:#fff;
  display:flex; align-items:center; justify-content:center;
  font-family:var(--display); font-weight:700; font-size:18px;
}
.acard h3{
  font-family:var(--display); font-weight:700;
  font-size:1.15rem; letter-spacing:-.015em;
}
.acard p{ font-size:13.5px; color:var(--muted); line-height:1.6; }
.acard .tag{ margin-top:auto; }

.timeline{
  border-left:2px solid var(--line);
  padding-left:28px;
  display:grid; gap:26px;
  max-width:640px;
}
.timeline li{ position:relative; }
.timeline li::before{
  content:""; position:absolute; left:-35px; top:6px;
  width:12px; height:12px; border-radius:50%;
  background:var(--grad);
  box-shadow:0 0 0 4px #fff, 0 0 0 5px var(--line);
}
.timeline b{
  display:block;
  font-family:var(--display); font-weight:700; font-size:1.05rem;
}
.timeline b i{
  font-style:normal;
  background:var(--grad);
  -webkit-background-clip:text; background-clip:text; color:transparent;
  margin-right:10px;
}
.timeline p{ font-size:14px; color:var(--muted); line-height:1.66; margin-top:4px; }

/* ---------- 16. FOOTER — the colophon plate ----------
   Built like the back matter of a monograph: masthead, a
   directory, the colophon line, then the imprint baseline.   */
.foot{
  position:relative; z-index:2;
  overflow:hidden;
  border-top:0;
  padding-top:0; padding-bottom:26px;
  background:
    linear-gradient(180deg, #FFFFFF 0%, var(--paper-soft) 26%, var(--paper-tint) 100%);
}
/* dot-matrix wash, strongest at the seam and gone by the baseline */
.foot::before{
  content:""; position:absolute; inset:0; pointer-events:none;
  background-image:radial-gradient(circle, rgba(10,22,32,.10) 1px, transparent 1.2px);
  background-size:20px 20px;
  -webkit-mask-image:linear-gradient(180deg, rgba(0,0,0,.75), transparent 58%);
  mask-image:linear-gradient(180deg, rgba(0,0,0,.75), transparent 58%);
}
/* the signature seam */
.foot-seam{
  position:absolute; top:0; left:0; right:0; height:3px;
  background:var(--grad);
}
.foot .shell{ position:relative; }

/* ---- masthead ---- */
.foot-mast{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:56px;
  padding-top:64px; padding-bottom:52px;
  border-bottom:1px solid var(--line);
  align-items:start;
}
.foot-logo{
  height:78px; width:auto; display:block;
}
.foot-motto{
  margin-top:22px;
  font-family:var(--display); font-weight:600;
  font-size:clamp(1.5rem, 2.4vw, 1.95rem);
  line-height:1.18; letter-spacing:-.022em;
  color:var(--ink);
}
.foot-motto em{
  font-style:italic;
  background:var(--grad);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.foot-imprint{
  margin-top:16px; padding-top:14px;
  border-top:1px solid var(--line);
  display:inline-block;
  font-size:13px; font-weight:500; letter-spacing:.01em;
  color:var(--muted);
}
.foot-imprint b{ font-weight:700; color:var(--ink-soft); }

.foot-assure{
  margin-top:26px;
  display:grid; gap:0;
  max-width:38ch;
}
.foot-assure li{
  position:relative;
  padding:11px 0 11px 24px;
  border-top:1px solid var(--line);
  font-size:13.5px; font-weight:600; line-height:1.5;
  color:var(--muted);
}
.foot-assure li::before{
  content:""; position:absolute; left:0; top:1.15em;
  width:10px; height:1.5px; border-radius:1px;
  background:var(--grad);
}

/* the right-hand call, on its own ruled panel */
.foot-call{
  position:relative;
  padding:30px 32px 32px;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:rgba(255,255,255,.72);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
}
/* concentric plate, the same figure the jackets carry */
.foot-plate{
  position:absolute; top:-96px; right:-104px;
  width:280px; height:280px; border-radius:50%;
  background:
    repeating-radial-gradient(circle at 50% 50%,
      rgba(0,184,121,.16) 0 1px, transparent 1px 17px);
  -webkit-mask-image:radial-gradient(circle at 50% 50%, #000 32%, transparent 72%);
  mask-image:radial-gradient(circle at 50% 50%, #000 32%, transparent 72%);
  pointer-events:none;
}
.foot-call-lbl{ position:relative; color:var(--lume-deep); }
.foot-call-head{
  position:relative;
  margin-top:16px;
  font-family:var(--display); font-weight:600;
  font-size:clamp(1.2rem, 1.9vw, 1.5rem);
  line-height:1.3; letter-spacing:-.018em;
  color:var(--ink);
}
.foot-call-head em{ font-style:italic; color:var(--muted); }
.foot-call-act{
  position:relative;
  margin-top:26px;
  display:flex; align-items:center; gap:22px; flex-wrap:wrap;
}
.foot-cta{ padding:14px 24px; font-size:14px; }
.foot-tel{
  font-family:var(--display); font-weight:700;
  font-size:1.12rem; letter-spacing:-.01em;
  color:var(--ink-soft);
  border-bottom:1px solid var(--line-strong);
  padding-bottom:2px;
  transition:color .3s var(--ease-sharp), border-color .3s var(--ease-sharp);
}
.foot-tel:hover{ color:var(--lume-deep); border-color:var(--lume); }

/* ---- directory ---- */
.foot-dir{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr) minmax(0,1.35fr);
  gap:48px;
  padding-block:46px;
  border-bottom:1px solid var(--line);
}
.foot-h{
  position:relative; padding-left:18px;
  font-family:var(--sans);
  font-size:10.5px; font-weight:700; letter-spacing:.16em; text-transform:uppercase;
  color:var(--ink-soft);
}
.foot-h::before{
  content:""; position:absolute; left:0; top:.42em;
  width:9px; height:3px; border-radius:2px;
  background:var(--grad);
}
.foot-links{ margin-top:20px; display:grid; gap:12px; }
.foot-links a{
  display:inline-block;
  font-size:14.5px; font-weight:600; color:var(--muted);
  transition:color .3s var(--ease-sharp), transform .3s var(--ease-sharp);
}
.foot-links a:hover{ color:var(--lume-deep); transform:translateX(3px); }

.foot-contact{ margin-top:20px; display:grid; }
.foot-contact > div{
  display:grid; grid-template-columns:72px minmax(0,1fr);
  gap:16px; align-items:baseline;
  padding:12px 0;
  border-top:1px solid var(--line);
}
.foot-contact > div:first-child{ border-top:0; padding-top:0; }
.foot-contact dt{
  font-size:10px; font-weight:700; letter-spacing:.15em; text-transform:uppercase;
  color:var(--muted-light);
}
.foot-contact dd{
  font-size:14px; font-weight:600; line-height:1.6; color:var(--ink-soft);
}
.foot-contact a{ transition:color .3s var(--ease-sharp); }
.foot-contact a:hover{ color:var(--lume-deep); }

/* ---- colophon line ---- */
.foot-colophon{
  padding-block:30px;
  border-bottom:1px solid var(--line);
  max-width:74ch;
  font-family:var(--display);
  font-size:14.5px; font-weight:400; line-height:1.75;
  color:var(--muted);
}
.foot-colophon b{ font-weight:700; color:var(--ink-soft); }

/* ---- baseline ---- */
.foot-base{
  padding-top:22px;
  display:flex; align-items:center; flex-wrap:wrap; gap:14px;
  font-size:12px; font-weight:600; letter-spacing:.02em;
  color:var(--muted-light);
}
.foot-sep{
  width:4px; height:4px; border-radius:50%;
  background:var(--muted-light); opacity:.6;
}
.foot-up{
  margin-left:auto;
  display:inline-flex; align-items:center; gap:10px;
  padding:8px 8px 8px 16px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  font-size:12px; font-weight:700; letter-spacing:.06em; text-transform:uppercase;
  color:var(--muted);
  transition:color .3s var(--ease-sharp), border-color .3s var(--ease-sharp);
}
.foot-up-ar{
  display:inline-flex; align-items:center; justify-content:center;
  width:24px; height:24px; border-radius:50%;
  background:var(--grad); color:#fff;
  font-style:normal; font-size:12px;
  transition:transform .34s var(--ease-sharp);
}
.foot-up:hover{ color:var(--ink); border-color:var(--line-strong); }
.foot-up:hover .foot-up-ar{ transform:translateY(-2px); }

@media (max-width:1040px){
  .foot-mast{ grid-template-columns:1fr; gap:40px; padding-top:54px; padding-bottom:44px; }
  .foot-dir{ grid-template-columns:minmax(0,1fr) minmax(0,1fr); gap:36px 40px; }
  .foot-col-wide{ grid-column:1 / -1; }
}
@media (max-width:620px){
  .foot-dir{ grid-template-columns:1fr; gap:34px; }
  .foot-logo{ height:62px; }
  .foot-call{ padding:24px 22px 26px; }
  .foot-cta{ width:100%; justify-content:space-between; }
  .foot-tel{ font-size:1rem; }
  .foot-contact > div{ grid-template-columns:1fr; gap:5px; }
  .foot-up{ margin-left:0; }
}

/* legacy spec strip (book page) */
.spec-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:12px;
  margin-top:40px !important;
}
.spec-strip > div{
  padding:16px 18px;
  background:var(--surf);
  border:1px solid var(--line);
  border-radius:var(--r);
  box-shadow:var(--shadow-sm);
}
.spec-strip dt{
  font-size:9.5px; font-weight:700; letter-spacing:.15em; text-transform:uppercase;
  color:var(--muted-light);
  margin-bottom:7px;
}
.spec-strip dd{
  font-family:var(--display); font-weight:600;
  font-size:13.5px; color:var(--ink);
  font-variant-numeric:tabular-nums;
}

/* ---------- 17. REVEAL ---------- */
.js [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .7s var(--ease-out), transform .7s var(--ease-out);
  transition-delay:calc(var(--d,0) * 70ms);
}
.js [data-reveal].in{ opacity:1; transform:none; }

/* ---------- 18. RESPONSIVE ---------- */
@media (max-width:1180px){
  :root{ --pad:34px; }
  .hero-grid{ grid-template-columns:1fr; gap:68px; }
  .hero-object{ min-height:520px; }
  .bento{ grid-template-columns:1fr 1fr; }
  .tile-helix{ grid-row:span 2; }
  .features{ grid-template-columns:repeat(2,1fr); }
  .auth{ grid-template-columns:1fr; gap:48px; }
  .auth-card{ max-width:420px; }
  .sec-head-split{ grid-template-columns:1fr; gap:28px; align-items:start; }
  .split{ grid-template-columns:1fr; gap:44px; }
  .authors-grid{ grid-template-columns:repeat(2,1fr); }
}
@media (max-width:880px){
  :root{ --pad:22px; }
  .nav-links{ display:none; }
  .nav-inner{ gap:14px; }
  .mark{ gap:9px; min-width:0; }
  .mark-text{ font-size:15px; }
  .band{ padding-block:72px; }
  .bento{ grid-template-columns:1fr; }
  .tile-helix{ grid-row:auto; min-height:440px; }
  .features{ grid-template-columns:1fr; }
  .press{ grid-template-columns:1fr; }
  .toc-frame{ grid-template-columns:1fr; }
  .frame-viz{ border-right:0; border-bottom:1px solid var(--line); min-height:320px; }
  .spec-strip{ grid-template-columns:repeat(2,1fr); }
  .hero-stats li{ padding-right:20px; margin-right:20px; }
  .cta-banner{ flex-direction:column; align-items:flex-start; }
  .authors-grid{ grid-template-columns:1fr; }
  .book-tag{ right:-6px; }
}

/* ---------- 19. REDUCED MOTION ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .js [data-reveal]{ opacity:1; transform:none; }
  .ticker-track{ animation:none; }
}

/* ---------- 20. PLATE GALLERY ---------- */
.plates-gallery{
  display:grid; grid-template-columns:repeat(4,1fr);
  gap:18px;
}
.pcard{
  display:flex; flex-direction:column; gap:12px;
  padding:18px 18px 20px;
  background:var(--surf);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-sm);
  transition:transform .4s var(--ease-sharp), box-shadow .4s var(--ease-sharp), border-color .4s var(--ease-sharp);
}
.pcard:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  border-color:var(--line-strong);
}
.pcard .pviz{
  display:flex; align-items:center; justify-content:center;
  background:var(--paper-soft);
  border-radius:var(--r-sm);
  padding:16px;
  min-height:180px;
}
.pcard svg.plate{ width:100%; height:auto; }
.pcard h3{
  font-family:var(--display); font-weight:700;
  font-size:1.1rem; letter-spacing:-.01em;
}
@media (max-width:1180px){
  .plates-gallery{ grid-template-columns:repeat(2,1fr); }
}
@media (max-width:560px){
  .plates-gallery{ grid-template-columns:1fr; }
}

/* ---------- BRAND LOGO ---------- */
.logo{
  display:inline-flex; flex-direction:column; align-items:stretch;
  background:#F5100C; color:#fff;
  padding:7px 9px 6px; border-radius:6px;
  line-height:1; user-select:none;
  transition:filter .3s var(--ease-sharp), transform .3s var(--ease-sharp);
}
.logo b{ font-family:var(--sans); font-weight:800; font-size:19px; letter-spacing:.04em; }
.logo i{
  font-style:normal; font-weight:700; font-size:6.3px;
  letter-spacing:.485em; margin-top:3px; white-space:nowrap;
}
.mark:hover .logo{ filter:brightness(1.08); transform:translateY(-1px); }
.logo-lg{ padding:10px 13px 9px; border-radius:8px; }
.logo-lg b{ font-size:30px; }
.logo-lg i{ font-size:10px; letter-spacing:.47em; margin-top:4px; }

/* ---------- LOGO IMAGE ---------- */
.logo-img{
  height:40px; width:auto; display:block;
  border-radius:5px;
  transition:filter .3s var(--ease-sharp), transform .3s var(--ease-sharp);
}
.mark:hover .logo-img{ filter:brightness(1.08); transform:translateY(-1px); }
.logo-img-lg{ height:58px; margin-bottom:14px; }
@media (max-width:880px){ .logo-img{ height:34px; } }

/* ---------- LOGO: OFFICIAL SIZING ---------- */
.logo-img{
  height:46px;
  border-radius:6px;
  box-shadow:0 2px 10px rgba(245,16,12,.22);
}
.mark{ gap:0; }
.logo-img-lg{
  height:72px;
  border-radius:8px;
  margin-bottom:16px;
  box-shadow:0 4px 18px rgba(245,16,12,.2);
}
@media (max-width:880px){ .logo-img{ height:38px; } }

/* ---------- LOGO: FINAL SIZING (nav-optimized art) ---------- */
.logo-img{ height:54px; border-radius:7px; }
.logo-img-lg{ height:84px; border-radius:9px; }
@media (max-width:880px){ .logo-img{ height:42px; } }

/* ---------- LOGO: SHARP CORNERS, FLAT (as supplied) ---------- */
.logo-img, .logo-img-lg{ border-radius:0; box-shadow:none; }

/* book page spec strip: three tiles after Figures removal */
.prod-spec{ grid-template-columns:repeat(3,1fr) !important; }

/* ---------- FAQ FIX: reveal answers ---------- */
.faq-item.open .faq-a{ grid-template-rows:1fr; }

/* book spec strip: two tiles after Extent removal */
.prod-spec{ grid-template-columns:repeat(2,1fr) !important; }

/* book spec strip: three tiles with Subject */
.prod-spec{ grid-template-columns:repeat(3,1fr) !important; }

/* contact page mail buttons */
.mail-btn{ margin-top:12px; }

/* contact lines */
.contact-lines{ margin-top:10px; font-weight:600; }
.contact-lines a{ transition:color .3s var(--ease-sharp); }
.contact-lines a:hover{ color:var(--lume-deep); }

/* ---------- SEARCH ---------- */
.search-btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:11px 18px; margin-right:10px;
  border:1px solid var(--line-strong);
  border-radius:var(--r-pill);
  background:var(--surf);
  box-shadow:var(--shadow-sm);
  font-size:13.5px; font-weight:700; color:var(--ink);
  cursor:pointer;
  transition:border-color .32s var(--ease-sharp), box-shadow .32s var(--ease-sharp), color .32s var(--ease-sharp);
}
.search-btn svg{ width:15px; height:15px; }
.search-btn:hover{
  border-color:var(--lume); color:var(--lume-deep);
  box-shadow:0 8px 26px rgba(0,184,121,.14);
}
@media (max-width:880px){
  .search-btn span{ display:none; }
  .search-btn{ padding:11px 13px; margin-right:6px; }
}

.search-scrim{
  position:fixed; inset:0; z-index:80;
  background:rgba(10,22,32,.4);
  backdrop-filter:blur(4px);
  opacity:0; transition:opacity .28s var(--ease-sharp);
}
.search-scrim.on{ opacity:1; }

.search-panel{
  position:fixed; z-index:81;
  top:min(14vh, 120px); left:50%;
  width:min(640px, 92vw);
  transform:translateX(-50%) translateY(10px) scale(.98);
  opacity:0;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-lg), 0 40px 90px rgba(10,22,32,.18);
  overflow:hidden;
  transition:opacity .28s var(--ease-sharp), transform .28s var(--ease-sharp);
}
.search-panel.on{ opacity:1; transform:translateX(-50%) translateY(0) scale(1); }

.search-row{
  display:flex; align-items:center; gap:14px;
  padding:18px 22px;
  border-bottom:1px solid var(--line);
}
.search-row svg{ width:20px; height:20px; color:var(--muted); flex-shrink:0; }
.search-row input{
  flex:1; border:0; outline:0; background:none;
  font-family:var(--sans); font-size:17px; font-weight:600;
  color:var(--ink);
}
.search-row input::placeholder{ color:var(--muted-light); font-weight:500; }
.search-x{
  font-size:10.5px; font-weight:800; letter-spacing:.1em;
  color:var(--muted-light);
  border:1px solid var(--line);
  border-radius:7px; padding:5px 9px;
  cursor:pointer;
  transition:color .3s var(--ease-sharp), border-color .3s var(--ease-sharp);
}
.search-x:hover{ color:var(--ink); border-color:var(--line-strong); }

.search-results{ max-height:min(56vh, 480px); overflow-y:auto; padding:8px; }
.search-hint, .search-empty{
  padding:14px 16px 8px;
  font-size:12px; font-weight:700; letter-spacing:.08em;
  text-transform:uppercase; color:var(--muted-light);
}
.search-empty{
  padding:34px 16px; text-align:center; text-transform:none;
  font-family:var(--display); font-size:1.1rem; font-weight:600;
  letter-spacing:0; color:var(--muted);
}
.search-empty span{ font-family:var(--sans); font-size:13px; font-weight:600; color:var(--muted-light); }

.sres{
  display:grid; grid-template-columns:42px 1fr auto;
  gap:14px; align-items:center;
  padding:10px 14px;
  border-radius:var(--r-sm);
  cursor:pointer;
  transition:background .2s var(--ease-sharp);
}
.sres:hover, .sres.sel{ background:var(--surf-hi); }
.sres-thumb{
  position:relative; display:block;
  width:42px; aspect-ratio:2/3;
  border-radius:4px; overflow:hidden;
  background:var(--tone,#0E1A15);
  box-shadow:var(--shadow-sm);
}
.sres-thumb .cover-motif{
  position:absolute; top:50%; left:50%;
  width:84%; transform:translate(-50%,-50%);
  color:rgba(234,244,239,.4);
}
.sres-thumb .cover-photo{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.sres-info{ display:flex; flex-direction:column; gap:3px; min-width:0; }
.sres-info b{
  font-family:var(--display); font-weight:700; font-size:15.5px;
  color:var(--ink);
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}
.sres-info i{
  font-style:normal; font-size:12.5px; font-weight:600; color:var(--muted);
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}
.sres mark{
  background:var(--lume-wash); color:var(--lume-deep);
  border-radius:3px; padding:0 1px;
}
.sres-side{ display:flex; align-items:center; gap:12px; }
.sres-side > b{
  font-family:var(--display); font-weight:700; font-size:15px;
  color:var(--ink); font-variant-numeric:tabular-nums;
}
.sres-add{
  font-size:12px; font-weight:800;
  color:#fff; background:var(--grad);
  border-radius:var(--r-pill); padding:7px 14px;
  cursor:pointer;
  box-shadow:0 4px 14px rgba(0,184,121,.25);
  transition:transform .25s var(--ease-sharp), box-shadow .25s var(--ease-sharp);
}
.sres-add:hover{ transform:translateY(-1px); box-shadow:0 8px 20px rgba(0,184,121,.35); }
.sres-add.added{ filter:saturate(1.4); }

.search-foot{
  display:flex; gap:20px; justify-content:center;
  padding:11px; border-top:1px solid var(--line);
  font-size:10.5px; font-weight:700; letter-spacing:.08em;
  text-transform:uppercase; color:var(--muted-light);
}
@media (max-width:560px){ .search-foot{ display:none; } }

/* ---------- EMAIL CHOOSER ---------- */
.mailpick{ position:fixed; inset:0; z-index:90; }
.mailpick-scrim{
  position:absolute; inset:0; background:rgba(10,22,32,.45);
  backdrop-filter:blur(3px); opacity:0; transition:opacity .22s var(--ease-sharp);
}
.mailpick.on .mailpick-scrim{ opacity:1; }
.mailpick-card{
  position:absolute; left:50%; top:50%;
  transform:translate(-50%,-50%) scale(.97); opacity:0;
  width:min(420px, 92vw);
  background:#fff; border:1px solid var(--line); border-radius:var(--r-lg);
  box-shadow:var(--shadow-lg); padding:28px 26px 24px;
  transition:opacity .22s var(--ease-sharp), transform .22s var(--ease-sharp);
}
.mailpick.on .mailpick-card{ opacity:1; transform:translate(-50%,-50%) scale(1); }
.mailpick-x{
  position:absolute; top:12px; right:14px;
  width:32px; height:32px; border-radius:50%;
  font-size:20px; line-height:1; cursor:pointer; color:var(--muted);
  transition:color .25s, background .25s;
}
.mailpick-x:hover{ color:var(--ink); background:var(--surf-hi); }
.mailpick-kicker{
  font-size:11px; font-weight:800; letter-spacing:.14em;
  text-transform:uppercase; color:var(--muted);
}
.mailpick-addr{
  margin-top:8px; font-family:var(--display); font-weight:700;
  font-size:1.25rem; letter-spacing:-.01em; color:var(--ink);
  word-break:break-all;
}
.mailpick-opts{ display:grid; gap:9px; margin-top:20px; }
.mailpick-go{ width:100%; justify-content:center; padding:13px 18px; font-size:14px; }
.mailpick-note{
  margin-top:14px; font-size:12.5px; font-weight:600;
  color:var(--muted); line-height:1.55; text-align:center;
}

/* course unit photo (replaces the drawn plate when one is uploaded) */
.frame-viz .plate-img{
  position:absolute; inset:0; width:100%; height:100%;
  object-fit:cover; z-index:1;
}