/* ==========================================================
   Elmatech — tokens
   ========================================================== */
:root{
  --ink:        #0a1830;
  --panel:      #0e1f3d;
  --panel-2:    #142a4e;
  --line:       rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.20);

  --text-hi:    #f5f7fb;
  --text-body:  #c3ceE3;
  --text-mute:  #7c8caf;

  --ema:        #48c7ea;
  --ema-soft:   rgba(72,199,234,.14);
  --nba:        #f2874b;
  --nba-soft:   rgba(242,135,75,.14);
  --ar:         #9c8cf0;
  --ar-soft:    rgba(156,140,240,.14);

  --gold:       #e8a33d;

  --font-display: 'Space Grotesk', 'Pretendard', system-ui, sans-serif;
  --font-mono:    'IBM Plex Mono', ui-monospace, 'SFMono-Regular', monospace;
  --font-body:    'Inter', 'Pretendard', system-ui, sans-serif;

  --radius: 3px;
  --wrap: 1180px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; scroll-padding-top:76px; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; }
}

body{
  margin:0;
  background:var(--ink);
  color:var(--text-body);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  color:var(--text-hi);
  margin:0 0 .5em;
  line-height:1.12;
  letter-spacing:-.01em;
}

p{ margin:0 0 1em; }
a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }

.wrap{
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:24px;
}

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

.skip-link{
  position:absolute; left:-999px; top:0;
  background:var(--ema); color:var(--ink); padding:10px 16px; z-index:200;
  font-family:var(--font-mono); font-size:.85rem;
}
.skip-link:focus{ left:12px; top:12px; }

/* ==========================================================
   Header / nav
   ========================================================== */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(10,24,48,.86);
  backdrop-filter:blur(10px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  height:68px;
}

.logo{ display:flex; align-items:baseline; gap:10px; font-family:var(--font-display); font-weight:700; }
.wordmark{
  font-size:1.3rem; letter-spacing:.02em;
  background:linear-gradient(90deg, #1a2144 0%, #2f5f9e 55%, #7fb3e0 100%);
  -webkit-background-clip:text; background-clip:text; color:#7fb3e0;
  -webkit-text-fill-color:transparent;
}
.wordmark-lg{ font-size:clamp(2.4rem,6vw,3.6rem); display:inline-block; }
.logo-full{ font-family:var(--font-mono); font-weight:500; font-size:.72rem; letter-spacing:.12em; color:var(--text-mute); }

.main-nav{ display:flex; align-items:center; gap:28px; font-family:var(--font-mono); font-size:.82rem; letter-spacing:.04em; }
.main-nav a{ color:var(--text-mute); display:inline-flex; align-items:baseline; gap:6px; padding:6px 0; position:relative; transition:color .2s; }
.main-nav a:hover, .main-nav a.is-active{ color:var(--text-hi); }
.main-nav a.is-active::after{
  content:""; position:absolute; left:0; right:0; bottom:-2px; height:2px; background:var(--ema);
}
.nav-num{ color:var(--text-mute); font-size:.72rem; }
.nav-contact{
  border:1px solid var(--line-strong); padding:7px 14px !important; border-radius:2px; color:var(--text-hi) !important;
}
.nav-contact:hover{ border-color:var(--ema); }

.nav-toggle{
  display:none; flex-direction:column; justify-content:center; gap:5px;
  width:40px; height:40px; background:none; border:1px solid var(--line-strong); border-radius:2px; cursor:pointer;
}
.nav-toggle span{ display:block; width:18px; height:2px; background:var(--text-hi); margin-inline:auto; transition:transform .25s, opacity .25s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* ==========================================================
   Hero
   ========================================================== */
.hero{ padding:72px 0 56px; position:relative; }
.hero-grid{ display:grid; grid-template-columns:1.1fr .9fr; align-items:center; gap:32px; }

.eyebrow{
  font-family:var(--font-mono); font-size:.78rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--ema); margin-bottom:18px;
}
.hero h1{
  font-size:clamp(2.6rem, 6vw, 5rem); font-weight:700; margin-bottom:22px;
}
.hero-amp{ color:var(--ema); margin-inline:.18em; font-weight:500; }
.hero-lede{ font-size:clamp(1rem, 1.6vw, 1.18rem); color:var(--text-body); max-width:46ch; margin-bottom:32px; }

.hero-cta{ display:flex; gap:14px; flex-wrap:wrap; margin-bottom:36px; }

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  font-family:var(--font-mono); font-size:.85rem; letter-spacing:.03em;
  padding:13px 24px; border-radius:2px; border:1px solid transparent; transition:all .2s;
}
.btn-primary{ background:var(--ema); color:var(--ink); font-weight:600; }
.btn-primary:hover{ background:#6fd6f2; }
.btn-ghost{ border-color:var(--line-strong); color:var(--text-hi); }
.btn-ghost:hover{ border-color:var(--ema); color:var(--ema); }
.btn-block{ width:100%; margin-top:18px; }

.hero-tags{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:10px; font-family:var(--font-mono); font-size:.82rem; color:var(--text-mute); }
.hero-tags li{ display:flex; align-items:center; gap:10px; }
.dot{ width:8px; height:8px; border-radius:50%; flex:none; }
.dot-ema{ background:var(--ema); }
.dot-nba{ background:var(--nba); }
.dot-ar{ background:var(--ar); }

/* ---- signature spectral disc ---- */
.hero-visual{ display:flex; justify-content:center; }
.disc{
  position:relative; border-radius:50%; aspect-ratio:1/1;
}
.disc-hero{ width:clamp(220px, 30vw, 420px); }
.disc-hero .disc-ring{
  position:absolute; inset:0; border-radius:50%;
  background:conic-gradient(from 200deg,
    #7d6ff0, #3e7dea 15%, #48c7ea 30%, #7fe0c9 42%, #e8d24a 56%,
    #e8a33d 68%, #f2874b 78%, #d15fa8 90%, #7d6ff0 100%);
  filter:saturate(1.15);
  animation:spin 42s linear infinite;
}
.disc-hero .disc-flat{
  position:absolute; inset:11%; border-radius:50%;
  background:radial-gradient(circle at 34% 30%, rgba(255,255,255,.5), rgba(10,24,48,.94) 62%);
  border:1px solid rgba(255,255,255,.16);
}
@keyframes spin{ to{ transform:rotate(360deg); } }

/* ==========================================================
   Index strip
   ========================================================== */
.index-strip{ border-block:1px solid var(--line); background:var(--panel); }
.index-strip-inner{ display:grid; grid-template-columns:repeat(3,1fr); }
.index-item{
  display:flex; align-items:center; gap:14px; padding:20px 18px;
  border-right:1px solid var(--line); transition:background .2s;
}
.index-item:last-child{ border-right:none; }
.index-item:hover{ background:var(--panel-2); }
.index-no{ font-family:var(--font-mono); font-size:.78rem; color:var(--text-mute); }
.index-label{ font-family:var(--font-display); font-weight:600; color:var(--text-hi); font-size:1rem; display:flex; flex-direction:column; gap:2px; }
.index-label em{ font-style:normal; font-family:var(--font-body); font-weight:400; font-size:.76rem; color:var(--text-mute); }

/* ==========================================================
   Sections (generic)
   ========================================================== */
.section{ padding:88px 0; border-bottom:1px solid var(--line); position:relative; }
.section-about{ background:var(--ink); }
.section-ema{ background:linear-gradient(180deg, var(--ink), #0b1c39); }
.section-nba{ background:linear-gradient(180deg, #0b1730, var(--ink)); }
.section-ar{ background:linear-gradient(180deg, var(--ink), #0b1932); }
.section-contact{ background:var(--panel); border-bottom:none; }

.section-head{ max-width:720px; margin-bottom:48px; }
.kicker{
  font-family:var(--font-mono); font-size:.78rem; letter-spacing:.1em; text-transform:uppercase;
  color:var(--text-mute); display:flex; align-items:center; gap:10px; margin-bottom:16px;
}
.kicker-no{
  display:inline-flex; align-items:center; justify-content:center;
  width:22px; height:22px; border:1px solid var(--line-strong); border-radius:50%; font-size:.68rem; color:var(--text-hi);
}
.kicker-kr{ color:var(--text-mute); font-family:var(--font-body); font-size:.82rem; }
.section-ema .kicker{ color:var(--ema); }
.section-nba .kicker{ color:var(--nba); }
.section-ar .kicker{ color:var(--ar); }

.section h2{ font-size:clamp(1.7rem, 3.4vw, 2.5rem); margin-bottom:16px; }
.section-lede{ color:var(--text-body); font-size:1.05rem; max-width:64ch; }

.subblock{ margin-top:56px; }
.subblock-title{
  display:flex; align-items:baseline; gap:10px; font-size:1.15rem; font-weight:600;
  color:var(--text-hi); margin-bottom:20px; padding-bottom:12px; border-bottom:1px solid var(--line);
}
.subblock-title span{ font-family:var(--font-mono); font-size:.85rem; color:var(--text-mute); }
.subblock-lede{ color:var(--text-mute); max-width:64ch; margin-bottom:20px; font-size:.95rem; }
.subblock-inline{ margin-top:0; }

/* ==========================================================
   About / History / Identity
   ========================================================== */
.about-grid{ display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:start; }

.greeting{ margin:0 0 28px; padding:26px; border:1px solid var(--line); border-left:2px solid var(--ema); border-radius:var(--radius); background:var(--panel); }
.greeting-kr{ font-family:var(--font-display); font-weight:600; font-size:1.2rem; color:var(--text-hi); margin:0 0 14px; line-height:1.5; }
.greeting-en{ color:var(--text-body); font-size:.92rem; margin:0 0 14px; }
.greeting cite{ font-family:var(--font-mono); font-size:.76rem; color:var(--text-mute); font-style:normal; }

.ci-card{ padding:26px; border:1px solid var(--line); border-radius:var(--radius); background:var(--panel); }
.ci-caption{ font-family:var(--font-mono); font-size:.82rem; letter-spacing:.06em; color:var(--ema); margin:10px 0 16px; }
.ci-text{ color:var(--text-body); font-size:.92rem; margin:0; }
.ci-text strong{ color:var(--text-hi); }

.timeline{ list-style:none; margin:0; padding:0; }
.timeline li{ display:grid; grid-template-columns:64px 1fr; gap:16px; padding:14px 0; border-top:1px dashed var(--line); }
.timeline li:first-child{ border-top:none; }
.tl-year{ font-family:var(--font-mono); font-size:.85rem; color:var(--ema); font-weight:600; }
.tl-text{ color:var(--text-body); font-size:.92rem; }
.tl-text small{ display:block; color:var(--text-mute); margin-top:2px; }
.tl-now{ border-top:1px solid var(--line-strong); margin-top:4px; padding-top:18px; }
.tl-now .tl-year{ color:var(--gold); }

/* ==========================================================
   Cards / grids
   ========================================================== */
.card-grid{ display:grid; gap:18px; }
.card-grid > *, .contact-grid > *{ min-width:0; }
.card-grid-4{ grid-template-columns:repeat(4,1fr); }
.card-grid-3{ grid-template-columns:repeat(3,1fr); }
.card-grid-2{ grid-template-columns:repeat(2,1fr); margin-top:56px; }

.card{
  background:var(--panel); border:1px solid var(--line); border-radius:var(--radius);
  padding:22px; position:relative; overflow:hidden;
}
.has-js .card{
  opacity:0; transform:translateY(14px); transition:opacity .5s ease, transform .5s ease;
}
.has-js .card.is-visible{ opacity:1; transform:none; }
.card::before{
  content:""; position:absolute; top:0; left:0; right:0; height:2px;
  background:linear-gradient(90deg, var(--ema), transparent);
}
.section-nba .card::before{ background:linear-gradient(90deg, var(--nba), transparent); }
.section-ar .card::before{ background:linear-gradient(90deg, var(--ar), transparent); }

.card h4{ font-size:1.02rem; margin-bottom:12px; }
.card-compact{ padding:20px; }
.card-narrow{ max-width:420px; }
.card-eyebrow{ font-family:var(--font-mono); font-size:.72rem; color:var(--text-mute); text-transform:uppercase; letter-spacing:.08em; margin-bottom:8px; }
.card-text{ color:var(--text-body); font-size:.92rem; margin:0; }

.card-highlight{ border-color:var(--gold); background:linear-gradient(160deg, rgba(232,163,61,.10), var(--panel) 60%); }
.card-highlight::before{ background:linear-gradient(90deg, var(--gold), transparent); }
.card-badge{
  position:absolute; top:16px; right:16px; margin:0;
  font-family:var(--font-mono); font-size:.68rem; letter-spacing:.08em; text-transform:uppercase;
  color:var(--ink); background:var(--gold); padding:3px 9px; border-radius:2px;
}

.plain-list{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:10px; }
.plain-list li{ font-size:.85rem; color:var(--text-body); padding-left:14px; position:relative; }
.plain-list li::before{ content:"—"; position:absolute; left:0; color:var(--text-mute); }

.tag-groups{ display:flex; flex-direction:column; gap:18px; }
.tag-group-label{ font-family:var(--font-mono); font-size:.74rem; text-transform:uppercase; letter-spacing:.08em; color:var(--text-mute); margin:0 0 8px; }
.tag-row{ display:flex; flex-wrap:wrap; gap:8px; }
.tag{
  font-family:var(--font-mono); font-size:.78rem; color:var(--text-body);
  border:1px solid var(--line-strong); border-radius:2px; padding:5px 10px; background:var(--panel);
}

.card-visual{ display:flex; justify-content:center; margin-bottom:18px; height:96px; align-items:center; }
.card-visual-row{ gap:14px; }

.spec-list{ margin:0; display:flex; flex-direction:column; gap:8px; }
.spec-list > div{ display:flex; justify-content:space-between; gap:12px; font-size:.82rem; border-top:1px dashed var(--line); padding-top:8px; }
.spec-list > div:first-child{ border-top:none; padding-top:0; }
.spec-list dt{ font-family:var(--font-mono); color:var(--text-mute); flex:0 0 auto; }
.spec-list dd{ margin:0; flex:1 1 auto; min-width:0; text-align:right; color:var(--text-body); overflow-wrap:break-word; }
.spec-list small{ color:var(--text-mute); }

/* material discs (icons) */
.disc{ box-shadow:0 0 0 1px var(--line) inset; }
.disc-silicon{ width:64px; background:radial-gradient(circle at 32% 28%, #4a5568, #0c1220 70%); position:relative; }
.disc-silicon::after{
  content:""; position:absolute; inset:6%; border-radius:50%;
  background:conic-gradient(from 120deg,#e8a33d,#48c7ea,#9c8cf0,#e8a33d);
  opacity:.55; mix-blend-mode:screen;
}
.disc-glass{ width:64px; background:radial-gradient(circle at 34% 30%, rgba(255,255,255,.55), rgba(72,199,234,.18) 70%); border:1px solid rgba(255,255,255,.35); }
.disc-compound{ width:64px; background:radial-gradient(circle at 32% 28%, #f4d98a, var(--gold) 70%); }
.disc-soi{ width:64px; background:repeating-radial-gradient(circle at center, #48c7ea 0 4px, #0e1f3d 4px 10px); }
.disc-process{ width:76px; background:radial-gradient(circle at 40% 35%, #ffdca0, var(--nba) 55%, #7a2e10 100%); }
.disc-lens{ background:radial-gradient(circle at 35% 30%, rgba(255,255,255,.6), rgba(72,199,234,.12) 75%); border:1px solid rgba(255,255,255,.35); }
.disc-lens-sm{ width:52px; }
.disc-ge{ width:60px; background:radial-gradient(circle at 32% 28%, #8a97a8, #2a3342 70%); }
.disc-sic{ width:60px; background:radial-gradient(circle at 32% 28%, #cfe8f5, #3f7f96 70%); }
.disc-gaas{ width:60px; background:radial-gradient(circle at 32% 28%, #b9a8e8, #4a3a7a 70%); }
.disc-sapphire{ width:60px; background:radial-gradient(circle at 32% 28%, #f2b8c6, #7a2e45 70%); }
.disc-epi{ width:60px; background:repeating-linear-gradient(180deg, #48c7ea 0 5px, #16294c 5px 11px); border-radius:50%; }
.disc-gan{ width:68px; background:conic-gradient(from 140deg, var(--gold), #ffe3a3, var(--gold)); }

/* ---- SOI flow diagram ---- */
.flow-card{ margin-top:20px; background:var(--panel); border:1px solid var(--line); border-radius:var(--radius); padding:26px; }
.flow-title{ font-family:var(--font-mono); font-size:.78rem; text-transform:uppercase; letter-spacing:.08em; color:var(--text-mute); margin-bottom:20px; }
.flow-row-top{ display:flex; align-items:center; justify-content:center; gap:22px; flex-wrap:wrap; }
.flow-box{ border:1px solid var(--line-strong); border-radius:2px; padding:10px 18px; font-size:.85rem; color:var(--text-hi); background:var(--panel-2); }
.flow-mid{ font-family:var(--font-mono); font-size:.72rem; color:var(--text-mute); text-align:center; line-height:1.3; }
.flow-arrow-down{ text-align:center; color:var(--text-mute); margin:10px 0; }
.flow-steps{ display:flex; justify-content:center; align-items:center; gap:10px; flex-wrap:wrap; font-family:var(--font-mono); font-size:.82rem; color:var(--text-hi); margin-bottom:24px; }
.flow-steps i{ color:var(--text-mute); font-style:normal; }
.flow-stack{ max-width:280px; margin-inline:auto; }
.flow-layer{ text-align:center; font-size:.78rem; padding:10px; color:var(--ink); font-weight:600; }
.flow-layer-soi{ background:var(--ema); border-radius:2px 2px 0 0; }
.flow-layer-oxide{ background:#aebedd; color:var(--ink); }
.flow-layer-base{ background:#5c6f95; border-radius:0 0 2px 2px; color:#fff; }

/* ==========================================================
   NBA
   ========================================================== */
.nba-grid{ display:grid; grid-template-columns:1.1fr .9fr; gap:24px; align-items:start; }
.nba-diagram-card, .nba-table-card{ min-width:0; background:var(--panel); border:1px solid var(--line); border-radius:var(--radius); padding:26px; }

.cell-stack{ display:flex; flex-direction:column; margin-bottom:22px; border:1px solid var(--line-strong); border-radius:2px; overflow:hidden; }
.cell-layer{ padding:12px 16px; font-size:.85rem; display:flex; align-items:baseline; gap:8px; }
.cell-layer small{ font-family:var(--font-mono); font-size:.7rem; opacity:.75; }
.cell-ni63{ background:linear-gradient(90deg, var(--nba), #c65a24); color:#1a0b02; font-weight:600; }
.cell-front{ background:var(--panel-2); color:var(--text-mute); font-family:var(--font-mono); font-size:.72rem; padding-block:6px; }
.cell-p{ background:#3a2f5c; color:#e9e2ff; }
.cell-n{ background:#1c4d55; color:#d3f4f2; }
.cell-back{ background:#7c8ba2; color:#0a1830; font-weight:600; }

.table-scroll{ overflow-x:auto; }
.spec-table{ width:100%; border-collapse:collapse; font-family:var(--font-mono); font-size:.84rem; min-width:420px; }
.spec-table th{ text-align:left; color:var(--nba); font-weight:600; padding:10px 12px; border-bottom:1px solid var(--line-strong); white-space:nowrap; }
.spec-table td{ padding:10px 12px; border-bottom:1px solid var(--line); color:var(--text-body); }
.spec-table tr:last-child td{ border-bottom:none; }
.table-note{ margin-top:16px; font-size:.82rem; color:var(--text-mute); }

/* ==========================================================
   AR
   ========================================================== */
.card-ar{ padding-top:26px; }
.lens-frame{
  width:100%; height:160px; border:3px solid #2b3a5c; border-radius:50% / 42%;
  background:linear-gradient(160deg, #16294c, #0a1830); margin-bottom:20px; position:relative; overflow:hidden;
}
.lens-glass{ position:absolute; inset:0; }
.lens-route{
  position:absolute; left:26%; top:60%; width:38%; height:2px; background:repeating-linear-gradient(90deg, var(--ar) 0 6px, transparent 6px 12px);
}
.lens-pin{ position:absolute; left:60%; top:38%; width:12px; height:12px; border-radius:50% 50% 50% 0; background:var(--ar); transform:rotate(45deg); box-shadow:0 0 0 3px rgba(156,140,240,.25); }
.lens-label{ position:absolute; left:30%; top:30%; font-family:var(--font-mono); font-size:.78rem; color:var(--ar); }

.vr-frame{ display:flex; gap:8px; height:160px; margin-bottom:20px; }
.vr-panel{ flex:1; border-radius:6px; background:linear-gradient(160deg, rgba(156,140,240,.28), rgba(156,140,240,.04)); border:1px solid var(--line-strong); }
.vr-panel:nth-child(2){ transform:translateY(-10px); }

/* ==========================================================
   Contact
   ========================================================== */
.contact-grid{ display:grid; grid-template-columns:1.2fr .8fr; gap:48px; align-items:start; }
.contact-list{ list-style:none; margin:32px 0 0; padding:0; display:flex; flex-direction:column; gap:22px; }
.contact-list li{ display:flex; flex-direction:column; gap:4px; border-top:1px solid var(--line); padding-top:16px; }
.contact-list li:first-child{ border-top:none; padding-top:0; }
.contact-label{ font-family:var(--font-mono); font-size:.72rem; text-transform:uppercase; letter-spacing:.1em; color:var(--text-mute); }
.contact-label small{ text-transform:none; letter-spacing:0; margin-left:6px; opacity:.7; }
.contact-list a{ color:var(--text-hi); font-size:1.02rem; transition:color .2s; }
.contact-list a:hover{ color:var(--ema); }
.contact-list span[lang="ko"]{ color:var(--text-hi); font-size:1.02rem; }
.addr-en{ display:block; color:var(--text-mute); font-size:.82rem; margin-top:4px; }

.contact-card{ background:var(--panel-2); border:1px solid var(--line-strong); border-radius:var(--radius); padding:28px; }
.contact-card-row{ display:flex; justify-content:space-between; gap:12px; padding:12px 0; border-bottom:1px dashed var(--line); font-size:.9rem; }
.contact-card-row:last-of-type{ border-bottom:none; }
.contact-card-row span{ color:var(--text-mute); font-family:var(--font-mono); font-size:.78rem; }
.contact-card-row strong{ color:var(--text-hi); font-weight:600; text-align:right; }

/* ==========================================================
   Footer
   ========================================================== */
.site-footer{ background:var(--ink); padding:36px 0; }
.footer-inner{ display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:16px; }
.logo-footer{ opacity:.85; }
.footer-inner p{ margin:0; color:var(--text-mute); font-size:.82rem; }
.footer-nav{ display:flex; gap:18px; font-family:var(--font-mono); font-size:.8rem; color:var(--text-mute); }
.footer-nav a:hover{ color:var(--ema); }

/* mobile call CTA */
.mobile-cta{
  display:none; position:fixed; left:14px; right:14px; bottom:14px; z-index:120;
  background:var(--ema); color:var(--ink); border-radius:4px; padding:13px 18px;
  align-items:center; justify-content:space-between; font-family:var(--font-mono);
  box-shadow:0 8px 24px rgba(0,0,0,.35);
}
.mobile-cta span{ font-size:.72rem; opacity:.8; }
.mobile-cta strong{ font-size:.92rem; }

/* ==========================================================
   Responsive
   ========================================================== */
@media (max-width:980px){
  .card-grid-4{ grid-template-columns:repeat(2,1fr); }
  .card-grid-3{ grid-template-columns:repeat(3,1fr); }
  .nba-grid{ grid-template-columns:1fr; }
  .contact-grid{ grid-template-columns:1fr; }
  .about-grid{ grid-template-columns:1fr; gap:32px; }
}

@media (max-width:760px){
  .wrap{ padding-inline:20px; }
  .main-nav{
    position:fixed; inset:68px 0 auto 0; background:var(--ink); border-bottom:1px solid var(--line);
    flex-direction:column; align-items:flex-start; gap:0; padding:8px 20px 20px;
    transform:translateY(-8px); opacity:0; pointer-events:none; transition:opacity .2s, transform .2s;
  }
  .main-nav.is-open{ opacity:1; transform:none; pointer-events:auto; }
  .main-nav a{ width:100%; padding:14px 0; border-bottom:1px solid var(--line); font-size:.95rem; }
  .nav-contact{ margin-top:12px; text-align:center; justify-content:center; }
  .nav-toggle{ display:flex; }

  .hero{ padding:44px 0 40px; }
  .hero-grid{ grid-template-columns:1fr; }
  .hero-visual{ order:-1; margin-bottom:8px; }
  .disc-hero{ width:180px; }
  .hero-cta{ flex-direction:column; }
  .btn{ width:100%; }

  .index-strip-inner{ grid-template-columns:1fr; }
  .index-item{ border-right:none; border-bottom:1px solid var(--line); }

  .section{ padding:56px 0; }
  .card-grid-4, .card-grid-3, .card-grid-2{ grid-template-columns:1fr; }

  .flow-row-top{ flex-direction:column; }
  .flow-mid{ transform:rotate(90deg); margin:4px 0; }

  .mobile-cta{ display:flex; }
  .site-footer{ padding-bottom:88px; }
}

@media (max-width:420px){
  .hero h1{ font-size:2.4rem; }
  .spec-list > div{ flex-direction:column; gap:2px; }
  .spec-list dd{ text-align:left; }
  .contact-card-row{ flex-direction:column; gap:4px; }
  .contact-card-row strong{ text-align:left; }

  .spec-table{ min-width:0; width:100%; font-size:.7rem; }
  .spec-table th, .spec-table td{ padding:8px 6px; white-space:normal; }
  .spec-table th:first-child, .spec-table td:first-child{ padding-left:0; }
  .spec-table th:last-child, .spec-table td:last-child{ padding-right:0; }
}