/* ============================================================
   MOBILE SURVEILLANCE UNITS — page layout
   Composition idea: "field deployment log".
   Off-centre hero, a horizontal deploy rail, a click-through
   unit diagram, a bento of site types, and a spec ledger.
   ============================================================ */

/* ---------- 1. HERO — 7/5 split, type left, scanner right ---------- */
.msu-hero { position: relative; padding-top: clamp(140px, 16vw, 210px); padding-bottom: clamp(56px, 7vw, 90px); overflow: hidden; }
.msu-hero-in { position: relative; z-index: 2; display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(30px, 5vw, 76px); align-items: center; }
.msu-hero h1 {
  margin-top: 22px;
  font-family: 'Sora',sans-serif; font-weight: 700;
  font-size: clamp(38px, 6.4vw, 88px); line-height: 0.98; letter-spacing: -0.045em;
}
.msu-hero h1 .o { color: transparent; -webkit-text-stroke: 1px rgba(255,255,255,0.5); }
.msu-hero-actions { margin-top: 38px; display: flex; gap: 14px; flex-wrap: wrap; }

/* breadcrumb */
.msu-crumb { display: flex; gap: 10px; align-items: center; font-size: 12.5px; color: var(--ink-dim); }
.msu-crumb a { text-decoration: none; color: var(--ink-dim); transition: color .3s ease; }
.msu-crumb a:hover { color: #fff; }

/* the scanner panel */
.msu-scan {
  position: relative; aspect-ratio: 4/5; border-radius: 26px; overflow: hidden;
  border: 1px solid var(--hair); background: #050608;
}
.msu-scan img { width: 100%; height: 100%; object-fit: cover; opacity: .62; }
.msu-scan::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.86) 100%);
}
/* sweeping scan line */
.msu-scan-line {
  position: absolute; left: 0; right: 0; height: 140px; z-index: 2;
  background: linear-gradient(180deg, transparent, rgba(46,107,255,0.28), transparent);
  animation: msuSweep 4.6s cubic-bezier(.5,0,.5,1) infinite;
}
@keyframes msuSweep { 0% { top: -140px; } 100% { top: 100%; } }
/* corner brackets */
.msu-scan-br { position: absolute; inset: 16px; z-index: 3; pointer-events: none; }
.msu-scan-br span { position: absolute; width: 22px; height: 22px; border: 1.5px solid rgba(255,255,255,0.4); }
.msu-scan-br span:nth-child(1) { top: 0; left: 0; border-right: 0; border-bottom: 0; }
.msu-scan-br span:nth-child(2) { top: 0; right: 0; border-left: 0; border-bottom: 0; }
.msu-scan-br span:nth-child(3) { bottom: 0; left: 0; border-right: 0; border-top: 0; }
.msu-scan-br span:nth-child(4) { bottom: 0; right: 0; border-left: 0; border-top: 0; }
.msu-scan-live {
  position: absolute; z-index: 4; left: 26px; bottom: 24px; right: 26px;
  display: flex; align-items: center; justify-content: space-between;
  font-family: 'JetBrains Mono',monospace; font-size: 11px; letter-spacing: 1px; color: rgba(255,255,255,0.72);
}
.msu-scan-live b { display: inline-flex; align-items: center; gap: 7px; font-weight: 500; }
.msu-scan-live i { width: 7px; height: 7px; border-radius: 50%; background: #33d17a; animation: svpPulse 1.8s ease-in-out infinite; }

/* hero stat strip, full-bleed hairline row */
.msu-strip { position: relative; z-index: 2; margin-top: clamp(48px, 6vw, 84px); border-top: 1px solid var(--hair); border-bottom: 1px solid var(--hair); }
.msu-strip-in { display: grid; grid-template-columns: repeat(4, 1fr); }
.msu-strip .s { padding: 30px 26px; border-left: 1px solid var(--hair); }
.msu-strip .s:first-child { border-left: 0; padding-left: 0; }
.msu-strip .s b { display: block; font-family: 'Sora',sans-serif; font-size: clamp(26px, 3vw, 40px); font-weight: 700; letter-spacing: -.04em; }
.msu-strip .s span { display: block; margin-top: 8px; font-size: 12.5px; color: var(--ink-dim); letter-spacing: .3px; }

/* ---------- 2. DEPLOY RAIL — horizontal snap track ---------- */
.msu-rail-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.msu-rail-wrap { margin-top: clamp(38px, 4.6vw, 62px); }
.msu-rail {
  display: grid; grid-auto-flow: column; grid-auto-columns: minmax(268px, 1fr); gap: 16px;
  overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 18px;
  scrollbar-width: thin;
}
.msu-rail::-webkit-scrollbar { height: 3px; }
.msu-rail::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border: 0; }
.msu-step {
  scroll-snap-align: start; position: relative; padding: 30px 26px 34px;
  border: 1px solid var(--hair); border-radius: 20px; background: var(--panel);
  transition: background .45s ease, border-color .45s ease, transform .45s cubic-bezier(.2,.8,.2,1);
}
.msu-step:hover { background: var(--panel-2); border-color: rgba(255,255,255,0.26); transform: translateY(-5px); }
.msu-step .t { font-family: 'JetBrains Mono',monospace; font-size: 11.5px; letter-spacing: 1.6px; color: var(--accent-2); }
.msu-step h3 { margin-top: 20px; font-family: 'Sora',sans-serif; font-size: 19px; font-weight: 650; letter-spacing: -.02em; }
.msu-step p { margin-top: 12px; font-size: 14px; line-height: 1.66; color: var(--ink-soft); }
.msu-step .dot {
  position: absolute; top: 30px; right: 26px; width: 9px; height: 9px; border-radius: 50%;
  background: rgba(255,255,255,0.2);
}
.msu-step:hover .dot { background: var(--accent); box-shadow: 0 0 0 6px rgba(46,107,255,0.18); }

/* ---------- 3. UNIT ANATOMY — click hotspots ---------- */
.msu-anat { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(28px, 4.4vw, 64px); align-items: center; margin-top: clamp(38px, 4.6vw, 60px); }
.msu-anat-fig { position: relative; border-radius: 24px; overflow: hidden; border: 1px solid var(--hair); }
.msu-anat-fig img { width: 100%; aspect-ratio: 1/1; object-fit: cover; opacity: .7; }
.msu-anat-fig::after { content: ""; position: absolute; inset: 0; background: radial-gradient(70% 60% at 50% 40%, transparent, rgba(0,0,0,0.72)); }

.msu-hot {
  position: absolute; z-index: 3; width: 34px; height: 34px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.5); background: rgba(6,10,20,0.6); backdrop-filter: blur(6px);
  color: #fff; font-family: 'JetBrains Mono',monospace; font-size: 11.5px; font-weight: 600;
  display: grid; place-items: center; cursor: pointer;
  transition: background .35s ease, border-color .35s ease, transform .4s cubic-bezier(.2,.8,.2,1);
}
.msu-hot::before {
  content: ""; position: absolute; inset: -6px; border-radius: 50%;
  border: 1px solid rgba(46,107,255,0.5); opacity: 0; transform: scale(.7);
  transition: opacity .4s ease, transform .4s ease;
}
.msu-hot:hover { transform: scale(1.12); border-color: #fff; }
.msu-hot.on { background: var(--accent); border-color: var(--accent); }
.msu-hot.on::before { opacity: 1; transform: scale(1); animation: msuRing 2s ease-out infinite; }
@keyframes msuRing { 0% { transform: scale(1); opacity: .9; } 100% { transform: scale(1.5); opacity: 0; } }

.msu-anat-panels { position: relative; }
.msu-anat-p {
  position: absolute; inset: 0; opacity: 0; visibility: hidden; transform: translateY(16px);
  transition: opacity .5s ease, transform .5s cubic-bezier(.2,.8,.2,1), visibility .5s;
}
.msu-anat-p.on { position: relative; opacity: 1; visibility: visible; transform: none; }
.msu-anat-p .n { font-family: 'JetBrains Mono',monospace; font-size: 11.5px; letter-spacing: 1.8px; color: var(--accent-2); }
.msu-anat-p h3 { margin-top: 16px; font-family: 'Sora',sans-serif; font-size: clamp(22px, 2.4vw, 31px); font-weight: 700; letter-spacing: -.03em; }
.msu-anat-p p { margin-top: 16px; font-size: 15.5px; line-height: 1.72; color: var(--ink-soft); }
.msu-anat-p ul { margin-top: 22px; display: grid; gap: 11px; list-style: none; }
.msu-anat-p li { display: flex; gap: 12px; align-items: flex-start; font-size: 14.5px; color: var(--ink-soft); }
.msu-anat-p li svg { width: 17px; height: 17px; flex: none; margin-top: 2px; color: var(--accent-2); }
.msu-anat-hint { margin-top: 30px; font-size: 12.5px; color: var(--ink-dim); }

/* ---------- 4. SITE TYPES — bento ---------- */
.msu-bento { margin-top: clamp(38px, 4.6vw, 60px); display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.msu-tile {
  position: relative; overflow: hidden; border-radius: 20px; border: 1px solid var(--hair);
  background: var(--panel); padding: 28px; min-height: 178px;
  display: flex; flex-direction: column; justify-content: flex-end;
  transition: border-color .45s ease, background .45s ease;
}
.msu-tile:hover { border-color: rgba(255,255,255,0.28); background: var(--panel-2); }
/* rows always total 6 columns: 4+2, 2+4, 3+3 */
.msu-tile.t4 { grid-column: span 4; }
.msu-tile.t3 { grid-column: span 3; min-height: 232px; }
.msu-tile.t2 { grid-column: span 2; }
.msu-tile .ic { width: 40px; height: 40px; border-radius: 12px; border: 1px solid var(--hair-2); display: grid; place-items: center; color: var(--accent-2); margin-bottom: auto; }
.msu-tile .ic svg { width: 19px; height: 19px; }
.msu-tile h3 { margin-top: 24px; font-family: 'Sora',sans-serif; font-size: 17.5px; font-weight: 650; letter-spacing: -.02em; }
.msu-tile p { margin-top: 9px; font-size: 13.8px; line-height: 1.6; color: var(--ink-soft); }
/* cursor-follow glow, fed by data-tilt */
.msu-tile::before {
  content: ""; position: absolute; inset: 0; opacity: 0; transition: opacity .45s ease;
  background: radial-gradient(280px 220px at var(--mx,50%) var(--my,50%), rgba(46,107,255,0.16), transparent 70%);
}
.msu-tile:hover::before { opacity: 1; }

/* ---------- 5. SPEC LEDGER ---------- */
.msu-spec { margin-top: clamp(34px, 4vw, 54px); border-top: 1px solid var(--hair); }
.msu-spec-row {
  display: grid; grid-template-columns: 220px 1fr auto; gap: 24px; align-items: baseline;
  padding: 24px 4px; border-bottom: 1px solid var(--hair);
  transition: background .4s ease, padding-left .4s cubic-bezier(.2,.8,.2,1);
}
.msu-spec-row:hover { background: rgba(255,255,255,0.03); padding-left: 16px; }
.msu-spec-row dt { font-family: 'Sora',sans-serif; font-size: 15px; font-weight: 600; }
.msu-spec-row dd { font-size: 14.5px; line-height: 1.6; color: var(--ink-soft); }
.msu-spec-row .v { font-family: 'JetBrains Mono',monospace; font-size: 12.5px; color: var(--accent-2); white-space: nowrap; }

/* ---------- responsive ---------- */
@media (max-width: 1000px) {
  .msu-hero-in { grid-template-columns: 1fr; }
  .msu-scan { aspect-ratio: 16/11; order: -1; }
  .msu-anat { grid-template-columns: 1fr; }
  .msu-bento { grid-template-columns: repeat(2, 1fr); }
  .msu-tile.t4, .msu-tile.t3, .msu-tile.t2 { grid-column: span 1; }
}
@media (max-width: 720px) {
  .msu-strip-in { grid-template-columns: repeat(2, 1fr); }
  .msu-strip .s { border-left: 0; border-top: 1px solid var(--hair); padding: 22px 0; }
  .msu-strip .s:nth-child(-n+2) { border-top: 0; }
  .msu-bento { grid-template-columns: 1fr; }
  .msu-spec-row { grid-template-columns: 1fr; gap: 8px; }
  .msu-spec-row .v { justify-self: start; }
}