:root {
  color-scheme: dark;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --cyan: #72d5e6;
  --muted: #7894a2;
  --line: rgba(114, 213, 230, 0.17);
  --px: 50%;
  --py: 50%;
  --logo-x: 50%;
  --logo-y: 50%;
}

* { box-sizing: border-box; }

html, body { width: 100%; min-height: 100%; margin: 0; }

body { background: #05080d; }

.experience {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  min-height: 100svh;
  isolation: isolate;
  overflow: hidden;
  background: radial-gradient(ellipse 68% 75% at 50% 47%, #0a1622 0%, #05090f 54%, #020408 100%);
  color: #e4e9ed;
  -webkit-user-select: none;
  user-select: none;
}

.photo-layer, .photo-reveal, .ambient-layer, .field-lines, .grid-reveal, .pointer-light, .frame {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.photo-layer, .photo-reveal { display: none; }

.ambient-layer {
  z-index: 0;
  background:
    radial-gradient(ellipse 26% 36% at 15% 84%, rgba(40, 96, 131, .08), transparent 80%),
    radial-gradient(ellipse 28% 34% at 80% 16%, rgba(25, 88, 127, .08), transparent 80%);
  animation: ambient-breathe 14s ease-in-out infinite alternate;
}

.field-lines {
  z-index: 1;
  opacity: .24;
  background:
    linear-gradient(90deg, transparent 6%, var(--line) 6.04%, transparent 6.08%, transparent 93.92%, var(--line) 93.96%, transparent 94%),
    linear-gradient(0deg, transparent 8%, var(--line) 8.04%, transparent 8.08%, transparent 91.92%, var(--line) 91.96%, transparent 92%);
}

.field-lines::after {
  content: "";
  position: absolute;
  inset: 16% 8%;
  border: 1px solid rgba(114, 213, 230, .035);
  background: linear-gradient(90deg, transparent 49.97%, rgba(114, 213, 230, .055) 50%, transparent 50.03%);
}

/* One visual worktable: discoveries are spatially fixed, never floating with the cursor. */
.desk-artifacts {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: none;
  overflow: hidden;
  pointer-events: none;
  opacity: 0;
  -webkit-mask-image: radial-gradient(circle 250px at var(--px) var(--py), #000 0%, #000 18%, rgba(0,0,0,.75) 53%, transparent 100%);
  mask-image: radial-gradient(circle 250px at var(--px) var(--py), #000 0%, #000 18%, rgba(0,0,0,.75) 53%, transparent 100%);
  transition: opacity .42s ease;
}
body[data-concept="dark"] .experience.logo-ready .desk-artifacts { display: block; }
body[data-concept="dark"] .experience.is-pointing .desk-artifacts { opacity: .88; }
.artifact { position: absolute; box-shadow: 0 20px 42px rgba(0,0,0,.65), 0 3px 12px rgba(0,0,0,.45); }

.laptop { left: 5.2%; top: 14%; width: clamp(215px, 24vw, 322px); height: 205px; transform: rotate(-5deg); box-shadow: none; }
.laptop-screen { position: relative; height: 168px; padding: 7px; border: 5px solid #47494c; border-bottom: 9px solid #4c4e51; border-radius: 10px 10px 5px 5px; background: #0c131b; box-shadow: 0 13px 27px rgba(0,0,0,.68), inset 0 0 2px rgba(188,199,204,.25); }
.laptop-screen::before { content: ""; position: absolute; top: 2px; left: calc(50% - 1px); width: 2px; height: 2px; border-radius: 50%; background: #171a1c; }
.editor-top { display: flex; align-items: center; gap: 4px; height: 15px; padding: 0 5px; background: #18242e; color: #9baab0; font: 7px "SFMono-Regular", Consolas, monospace; }
.editor-top span { width: 3px; height: 3px; border-radius: 50%; background: #d37a6b; }
.editor-top span:nth-child(2) { background: #d8b56f; }
.editor-top span:nth-child(3) { background: #75ae9a; }
.editor-top b { margin-left: 8px; font-weight: 400; letter-spacing: .025em; }
.editor-body { display: flex; height: 126px; padding: 10px 7px; background: linear-gradient(115deg, #0c1720, #101a22 75%, #152c32); font: 8px/1.9 "SFMono-Regular", Consolas, monospace; }
.editor-gutter { width: 21px; color: #4c6570; }
.editor-code { min-width: 0; flex: 1; overflow: hidden; color: #b9ced0; white-space: nowrap; }
.editor-code i { color: #77acdc; font-style: normal; }
.editor-code em { color: #c6a67d; font-style: normal; }
.code-muted { color: #6a8991; }
.typing-line { width: 0; max-width: max-content; overflow: hidden; border-right: 1px solid #78d9df; animation: code-type 7.2s steps(25, end) infinite; }
.terminal-rule { height: 1px; margin: 7px 0 5px; background: #2d424b; }
.terminal-copy { color: #77a2af; font-size: 7px; letter-spacing: .02em; }
.laptop-base { position: relative; height: 14px; margin: 0 -15px; border-radius: 0 0 48% 48%; background: linear-gradient(#64686b, #3f4245 52%, #282b2d 95%); box-shadow: 0 14px 18px rgba(0,0,0,.6); }
.laptop-base span { display: block; width: 25%; height: 3px; margin: auto; border-radius: 0 0 4px 4px; background: #55595c; }

.blueprint { right: 7.5%; top: 13%; width: 270px; height: 190px; padding: 12px; transform: rotate(5deg); border: 1px solid #6d91a0; background: linear-gradient(87deg, transparent 48%, rgba(228,242,233,.1) 49.3%, rgba(9,28,40,.21) 50%, transparent 51%), radial-gradient(circle at 66% 37%, #28516a, #15364b 70%); color: #bdd7d8; box-shadow: 0 18px 35px rgba(0,0,0,.58), inset 0 0 30px rgba(5,20,32,.28); }
.blueprint::before { content: ""; position: absolute; inset: 0; opacity: .36; background: linear-gradient(rgba(159,219,225,.15) 1px, transparent 1px), linear-gradient(90deg, rgba(159,219,225,.15) 1px, transparent 1px); background-size: 13px 13px; }
.blueprint-head, .blueprint-foot { position: relative; z-index: 1; font: 7px "SFMono-Regular", Consolas, monospace; letter-spacing: .13em; }
.blueprint-head { display: flex; justify-content: space-between; }
.blueprint svg { position: relative; z-index: 1; width: 100%; height: 137px; opacity: .85; }
.blueprint-foot { text-align: right; opacity: .65; }

.photo-stack { left: 42%; top: 10%; width: 310px; height: 213px; box-shadow: none; }
.print { position: absolute; padding: 7px 7px 24px; background: #e5e1d7; box-shadow: 0 13px 25px rgba(0,0,0,.68), inset 0 0 10px rgba(83,70,50,.13); }
.print::before { content: ""; position: absolute; top: -7px; left: 32%; width: 44px; height: 15px; transform: rotate(-6deg); background: rgba(209,190,148,.47); }
.print .photo-scene { width: 100%; height: calc(100% - 8px); background-repeat: no-repeat; background-size: cover; }
.print-memory { z-index: 0; top: 4px; left: 80px; width: 112px; height: 139px; transform: rotate(12deg); }
.print-memory .photo-scene { background-image: url("assets/fictional-family-site.webp"); background-position: 45% 58%; filter: saturate(.75) contrast(.9); }
.print-wedding { z-index: 2; top: 31px; left: 0; width: 164px; height: 157px; transform: rotate(-8deg); }
.print-wedding .photo-scene { background-image: url("assets/wedding-photo-site.webp"); background-position: 50% 39%; filter: contrast(.93); }
.print-diving { z-index: 3; top: 53px; left: 145px; width: 155px; height: 130px; transform: rotate(7deg); }
.print-diving .photo-scene { background-image: url("assets/diving-photo-user-supplied.webp"); background-position: 50% 47%; filter: saturate(.86); }
.photo-caption { margin-top: 2px; color: #514d42; font: 10px "Bradley Hand", "Segoe Print", "Marker Felt", cursive; text-align: center; white-space: nowrap; }

.todo-paper { left: 16%; bottom: 12%; width: 126px; min-height: 130px; padding: 13px 8px 9px; transform: rotate(6deg); background: linear-gradient(155deg, rgba(255,255,255,.23), transparent 30%), linear-gradient(180deg, #f8e982, #efd66a 86%, #d3b64c); color: #273644; box-shadow: 0 20px 33px rgba(0,0,0,.65), inset 0 -7px 8px rgba(125,98,21,.12); }
.todo-paper::before { content: ""; position: absolute; inset: 0 0 auto; height: 19px; background: linear-gradient(rgba(138,118,37,.1), transparent); }
.todo-paper::after { content: ""; position: absolute; right: 0; bottom: 0; width: 25px; height: 20px; background: linear-gradient(135deg, transparent 49%, #d8bd54 50%); filter: drop-shadow(-2px -2px 2px rgba(63,49,18,.15)); }
.note-title { margin: 0 0 5px; font: 15px "Bradley Hand", "Segoe Print", "Marker Felt", cursive; font-weight: 700; transform: rotate(-2deg); }
.note-line { margin: 4px 0; font: 10px/1.02 "Bradley Hand", "Segoe Print", "Marker Felt", cursive; white-space: nowrap; transform: rotate(-1deg); }
.note-line:nth-of-type(3) { transform: rotate(1deg); }
.check { display: inline-flex; align-items: center; justify-content: center; width: 10px; height: 10px; margin-right: 2px; border: 1px solid #334b61; font: 9px Arial, sans-serif; vertical-align: -1px; }
.check.checked { color: #334b61; }
.note-scribble { margin-top: 5px; transform: rotate(1deg); font: 9px/1.05 "Bradley Hand", "Segoe Print", "Marker Felt", cursive; color: #3d5162; }

.phone { left: 5.3%; bottom: 10%; width: 116px; height: 238px; padding: 4px; transform: rotate(-13deg); border: 3px solid #777c7f; border-radius: 23px; background: #171c21; box-shadow: 0 17px 27px rgba(0,0,0,.68), inset 0 0 1px #c7c9c9; }
.phone::before { content: ""; position: absolute; left: -5px; top: 48px; width: 2px; height: 29px; border-radius: 2px; background: #858b8d; }
.phone-screen { position: relative; height: 100%; padding-top: 55px; border-radius: 18px; background: radial-gradient(circle at 42% 60%, #24495c 0%, #102630 39%, #080f16 80%); color: #c4d6d8; text-align: center; font-family: "SFMono-Regular", Consolas, monospace; overflow: hidden; }
.phone-notch { position: absolute; top: 0; left: calc(50% - 27px); width: 54px; height: 14px; border-radius: 0 0 10px 10px; background: #090d11; }
.phone-time { font-size: 20px; font-weight: 500; letter-spacing: -.08em; }
.battery-outline { position: relative; width: 36px; height: 17px; margin: 28px auto 0; padding: 2px; border: 1px solid #afb9b6; border-radius: 3px; }
.battery-outline::after { content: ""; position: absolute; right: -4px; top: 3px; width: 2px; height: 5px; background: #afb9b6; }
.battery-outline span { display: block; width: 12%; height: 100%; background: #ce7666; }
.charge-bolt { margin-top: 3px; color: #76c6a1; font-size: 19px; }
.phone-charge { margin-top: 7px; color: #83aeb3; font-size: 7px; letter-spacing: .07em; }
.phone-home { position: absolute; bottom: 7px; left: calc(50% - 20px); width: 40px; height: 3px; border-radius: 3px; background: rgba(238,242,242,.73); }

.travel-pass { right: 10%; bottom: 15%; display: flex; width: 270px; height: 115px; transform: rotate(-8deg); background: #ebe9e3; color: #20323d; box-shadow: 0 18px 33px rgba(0,0,0,.66), inset 0 0 18px rgba(72,70,65,.13); }
.travel-pass::before { content: ""; position: absolute; inset: 0 0 auto; height: 4px; background: linear-gradient(90deg, #d32942 0 50%, #246293 50%); }
.pass-main { flex: 1; padding: 8px 10px 6px; min-width: 0; }
.airline-head { display: flex; align-items: center; gap: 4px; height: 15px; color: #1f3446; font: 7px Arial, sans-serif; }
.airline-head b { font-size: 10px; letter-spacing: -.04em; }
.airline-head > span:last-child { margin-left: auto; font: 5px "SFMono-Regular", Consolas, monospace; letter-spacing: .08em; }
.airline-mark { width: 10px; height: 10px; background: linear-gradient(135deg, #c6304b 0 50%, #265f91 50%); clip-path: polygon(0 0, 100% 0, 73% 100%, 10% 65%); }
.pass-route { display: flex; align-items: center; justify-content: space-between; margin-top: 3px; }
.pass-route div { display: flex; flex-direction: column; }
.pass-route small { font: 5px "SFMono-Regular", Consolas, monospace; letter-spacing: .12em; color: #6a7477; }
.pass-route strong { font: 23px/.95 Arial, sans-serif; font-weight: 700; letter-spacing: -.04em; }
.pass-route span { margin-top: 2px; font: 5px Arial, sans-serif; letter-spacing: .09em; }
.pass-route i { font: 17px Arial, sans-serif; color: #9babb1; }
.pass-details { display: flex; justify-content: space-between; margin-top: 5px; padding-top: 4px; border-top: 1px solid #aeb6b7; font: 6px "SFMono-Regular", Consolas, monospace; }
.pass-disclaimer { margin-top: 4px; color: #899292; font: 4.5px "SFMono-Regular", Consolas, monospace; letter-spacing: .09em; }
.pass-stub { display: flex; width: 48px; flex-direction: column; align-items: center; justify-content: space-around; border-left: 1px dashed #829096; font: 7px "SFMono-Regular", Consolas, monospace; letter-spacing: .08em; }
.pass-stub b { font-size: 15px; font-weight: 400; }
.ticket-note { position: absolute; top: -69px; left: 55px; display: flex; flex-direction: column; width: 112px; height: 91px; padding: 13px 10px 8px; transform: rotate(10deg); background: linear-gradient(155deg, #fff1a0, #e8d475 90%); box-shadow: 0 9px 15px rgba(0,0,0,.32), inset 0 -4px 7px rgba(123,99,36,.13); color: #2d4152; font: 12px/1.1 "Bradley Hand", "Segoe Print", "Marker Felt", cursive; }
.ticket-note span { display: block; margin-bottom: 3px; white-space: nowrap; }
.ticket-note .crossed { text-decoration: line-through; text-decoration-thickness: 1.5px; }

.venture-paper { left: 45%; bottom: 7%; width: 185px; height: 146px; padding: 20px 14px 10px; transform: rotate(5deg); background: linear-gradient(135deg, #f5e58a, #e7d174 89%, #c8b35c); color: #364657; box-shadow: 0 17px 27px rgba(0,0,0,.62), inset 0 -5px 8px rgba(94,78,25,.13); }
.venture-paper::before { content: ""; position: absolute; inset: 0 0 auto; height: 19px; background: linear-gradient(rgba(119,101,37,.12), transparent); }
.venture-title { margin: 0 0 6px; font: 18px "Bradley Hand", "Segoe Print", "Marker Felt", cursive; font-weight: 700; white-space: nowrap; }
.venture-line { padding: 2px 0; font: 12px/1.08 "Bradley Hand", "Segoe Print", "Marker Felt", cursive; }
.venture-line::before { content: "· "; }
.venture-sign { margin-top: 7px; text-align: right; font: 12px "Bradley Hand", "Segoe Print", "Marker Felt", cursive; }

.coffee { right: 3%; top: 42%; width: 148px; height: 107px; box-shadow: none; transform: rotate(10deg); }
.coffee img { display: block; width: 100%; height: 100%; object-fit: contain; filter: drop-shadow(0 10px 8px rgba(0,0,0,.5)); }

@keyframes code-type { 0%, 9% { width: 0; } 43%, 77% { width: 25ch; } 90%, 100% { width: 0; } }

.grid-reveal {
  z-index: 2;
  background-image:
    linear-gradient(rgba(104, 195, 214, .25) 1px, transparent 1px),
    linear-gradient(90deg, rgba(104, 195, 214, .25) 1px, transparent 1px),
    radial-gradient(circle at var(--px) var(--py), rgba(95, 197, 217, .10), transparent 45%);
  background-size: 32px 32px, 32px 32px, 100% 100%;
  -webkit-mask-image: radial-gradient(circle 210px at var(--px) var(--py), #000 0%, rgba(0,0,0,.72) 42%, transparent 100%);
  mask-image: radial-gradient(circle 210px at var(--px) var(--py), #000 0%, rgba(0,0,0,.72) 42%, transparent 100%);
  opacity: 0;
  transition: opacity .35s ease;
}

.pointer-light {
  z-index: 3;
  background: radial-gradient(circle 270px at var(--px) var(--py), rgba(41, 145, 172, .19) 0%, rgba(36, 116, 150, .055) 42%, transparent 100%);
  opacity: 0;
  transition: opacity .45s ease;
}

.experience.is-pointing .grid-reveal, .experience.is-pointing .pointer-light { opacity: 1; }

.frame {
  z-index: 4;
  inset: 24px;
  background:
    linear-gradient(var(--line), var(--line)) left top / 24px 1px no-repeat,
    linear-gradient(var(--line), var(--line)) left top / 1px 24px no-repeat,
    linear-gradient(var(--line), var(--line)) right top / 24px 1px no-repeat,
    linear-gradient(var(--line), var(--line)) right top / 1px 24px no-repeat,
    linear-gradient(var(--line), var(--line)) left bottom / 24px 1px no-repeat,
    linear-gradient(var(--line), var(--line)) left bottom / 1px 24px no-repeat,
    linear-gradient(var(--line), var(--line)) right bottom / 24px 1px no-repeat,
    linear-gradient(var(--line), var(--line)) right bottom / 1px 24px no-repeat;
}

.topbar, .footer { position: relative; z-index: 10; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; }
.topbar { padding: 28px clamp(28px, 6.2vw, 96px) 0; }
.topbar { grid-template-columns: 1fr 1fr; }
.system-note, .topbar-end, .footer, .pointer-probe { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; }
.system-note, .topbar-end { font-size: 9px; letter-spacing: .18em; color: var(--muted); white-space: nowrap; }
.system-note { display: block; }
.system-status { display: flex; align-items: center; gap: 10px; }
.system-subline { margin-top: 7px; opacity: .58; }
.topbar-end { text-align: right; }
.live-dot { width: 5px; height: 5px; border-radius: 50%; background: #8ad5b0; box-shadow: 0 0 8px rgba(138, 213, 176, .55); }

.concept-switch { display: flex; border: 1px solid rgba(127, 182, 202, .28); background: rgba(2, 7, 12, .55); backdrop-filter: blur(12px); }
.concept-switch a { padding: 10px 15px; color: #93a7b1; text-decoration: none; font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; font-size: 10px; letter-spacing: .13em; transition: background .2s, color .2s; }
.concept-switch a + a { border-left: 1px solid rgba(127, 182, 202, .22); }
.concept-switch a:hover { background: rgba(114, 213, 230, .13); color: #fff; }
.concept-switch a[aria-current="page"] { background: #77dbea; color: #061117; }
.concept-switch a:focus-visible { outline: 2px solid #f7fbfb; outline-offset: 4px; }

.hero { position: relative; z-index: 6; display: flex; flex: 1; min-height: 0; flex-direction: column; align-items: center; justify-content: center; padding: 2rem 24px 1rem; text-align: center; }
.mark-plate { position: relative; width: min(78vw, 860px); transform-style: preserve-3d; transition: transform .36s cubic-bezier(.19,.8,.26,1), filter .4s; animation: mark-breathe 5s ease-in-out infinite; }
.wordmark { display: block; width: 100%; height: auto; filter: drop-shadow(0 3px 4px rgba(0,0,0,.35)); }
.mark-sweep, .mark-illumination { position: absolute; inset: 0; pointer-events: none; -webkit-mask-image: url("assets/logo-master-v4.svg"); mask-image: url("assets/logo-master-v4.svg"); -webkit-mask-repeat: no-repeat; mask-repeat: no-repeat; -webkit-mask-size: 100% 100%; mask-size: 100% 100%; }
.mark-sweep { overflow: hidden; }
.mark-sweep::before { content: ""; position: absolute; inset: 0; width: 36%; background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,.03) 25%, rgba(255,255,255,.36) 50%, rgba(255,255,255,.04) 67%, transparent 100%); transform: translateX(-110%); animation: light-sweep 5s linear infinite; }
.mark-illumination { opacity: 0; background: radial-gradient(circle 22% at var(--logo-x) var(--logo-y), rgba(230,251,255,.48), rgba(120,221,243,.10) 46%, transparent 100%); transition: opacity .25s; }
.experience.is-pointing .mark-illumination { opacity: 1; }

.pointer-probe { position: absolute; z-index: 20; left: 0; top: 0; display: flex; align-items: flex-start; gap: 10px; color: #9ce3ec; font-size: 8px; line-height: 1.6; letter-spacing: .11em; opacity: 0; pointer-events: none; transform: translate(-100px, -100px); transition: opacity .22s ease; white-space: nowrap; text-align: left; text-shadow: 0 0 8px rgba(4, 16, 24, .9); }
.experience.is-pointing .pointer-probe { opacity: .9; }
.probe-point { position: relative; flex: none; width: 5px; height: 5px; margin-top: 6px; border-radius: 50%; background: #89e5ed; box-shadow: 0 0 12px #58c9dc, 0 0 22px rgba(88, 201, 220, .6); }
.probe-copy { display: flex; flex-direction: column; padding: 4px 6px; background: rgba(2, 8, 13, .53); border-left: 1px solid rgba(114, 213, 230, .42); }

.footer { gap: 12px; padding: 0 clamp(28px, 6.2vw, 96px) 28px; color: #7894a2; font-size: 9px; letter-spacing: .17em; }
.footer-center { display: flex; align-items: center; gap: 13px; white-space: nowrap; color: #85a4b0; }
.footer-center span { width: 26px; height: 1px; background: #4a8fa3; opacity: .5; }
.footer-right { display: flex; align-items: center; justify-content: flex-end; gap: 9px; text-align: right; }
.venture-dot { width: 4px; height: 4px; flex: none; border-radius: 50%; background: #d48b57; box-shadow: 0 0 6px rgba(212, 139, 87, .72); }

/* Concept 02 borrows the existing room image, then deliberately suppresses its detail. */
body[data-concept="lab"] .experience { background: #05080b; --line: rgba(192, 163, 126, .23); }
body[data-concept="lab"] .photo-layer,
body[data-concept="lab"] .photo-reveal { display: block; background-image: url("assets/after-hours-lab.png"); background-size: cover; background-position: 50% 50%; }
body[data-concept="lab"] .photo-layer { z-index: 0; opacity: .46; filter: saturate(.54) brightness(.9) blur(1px); transform: scale(1.015); }
body[data-concept="lab"] .photo-reveal { z-index: 2; opacity: 0; filter: saturate(.63) brightness(.8); -webkit-mask-image: radial-gradient(circle 230px at var(--px) var(--py), #000 0%, transparent 100%); mask-image: radial-gradient(circle 230px at var(--px) var(--py), #000 0%, transparent 100%); transition: opacity .35s ease; }
body[data-concept="lab"] .experience.is-pointing .photo-reveal { opacity: .35; }
body[data-concept="lab"] .ambient-layer { z-index: 1; background: linear-gradient(90deg, rgba(3, 7, 12, .65), rgba(4, 8, 12, .62) 38%, rgba(3, 7, 11, .58) 60%, rgba(3, 7, 11, .63)), radial-gradient(ellipse 80% 72% at 50% 50%, transparent 6%, #03070c 95%); animation: none; }
body[data-concept="lab"] .field-lines { opacity: .14; }
body[data-concept="lab"] .grid-reveal { opacity: 0; background-image: linear-gradient(rgba(219, 171, 115, .23) 1px, transparent 1px), linear-gradient(90deg, rgba(219, 171, 115, .23) 1px, transparent 1px); background-size: 42px 42px; }
body[data-concept="lab"] .experience.is-pointing .grid-reveal { opacity: .7; }
body[data-concept="lab"] .pointer-light { background: radial-gradient(circle 270px at var(--px) var(--py), rgba(180, 109, 57, .14), rgba(58, 112, 136, .055) 55%, transparent 100%); }
body[data-concept="lab"] .concept-switch a[aria-current="page"] { background: #d1a371; color: #140d0a; }
body[data-concept="lab"] .mark-plate { filter: drop-shadow(0 1px 18px rgba(0,0,0,.9)); }
body[data-concept="lab"] .footer-center { color: #b8a897; }
body[data-concept="lab"] .footer-center span { background: #c79565; }
body[data-concept="lab"] .pointer-probe { color: #e6c5a3; }
body[data-concept="lab"] .probe-point { background: #e5b37f; box-shadow: 0 0 12px #d89358, 0 0 22px rgba(216,147,88,.6); }
body[data-concept="lab"] .probe-copy { border-color: rgba(215, 166, 115, .5); }

@keyframes mark-breathe { 0%, 100% { filter: drop-shadow(0 0 8px rgba(54, 116, 143, .22)); } 50% { filter: drop-shadow(0 0 20px rgba(54, 116, 143, .46)); } }
@keyframes light-sweep { from { transform: translateX(-110%); } to { transform: translateX(300%); } }
@keyframes ambient-breathe { from { opacity: .65; transform: scale(1); } to { opacity: 1; transform: scale(1.08); } }

@media (max-width: 760px) {
  .topbar { grid-template-columns: 1fr 1fr; gap: 18px 4px; padding: 25px 26px 0; }
  .system-note, .topbar-end { font-size: 7px; letter-spacing: .075em; }
  .system-status { gap: 5px; }
  .system-subline { margin-top: 5px; }
  .concept-switch { grid-column: 1 / -1; justify-self: center; }
  .hero { padding: 2rem 20px; }
  .mark-plate { width: min(88vw, 720px); }
  .footer { grid-template-columns: 1fr 1fr; gap: 15px 4px; padding: 0 26px 25px; font-size: 7px; letter-spacing: .06em; }
  .footer-center { grid-column: 1 / -1; grid-row: 1; justify-self: center; gap: 9px; letter-spacing: .13em; }
  .footer-left { grid-column: 1; grid-row: 2; }
  .footer-right { grid-column: 2; grid-row: 2; gap: 4px; }
  .footer-center span { width: 12px; }
  .frame { inset: 16px; }
  .pointer-probe { display: none; }
  .grid-reveal { opacity: .12; -webkit-mask-image: radial-gradient(circle 140px at var(--px) var(--py), #000, transparent); mask-image: radial-gradient(circle 140px at var(--px) var(--py), #000, transparent); }
  body[data-concept="lab"] .photo-layer { background-position: 39% 50%; }
  .desk-artifacts { -webkit-mask-image: radial-gradient(circle 160px at var(--px) var(--py), #000 0%, rgba(0,0,0,.8) 48%, transparent 100%); mask-image: radial-gradient(circle 160px at var(--px) var(--py), #000 0%, rgba(0,0,0,.8) 48%, transparent 100%); }
  .laptop { left: 1%; top: 18%; transform: rotate(-5deg) scale(.46); transform-origin: left top; }
  .blueprint, .venture-paper, .coffee { display: none; }
  .photo-stack { left: 43%; top: 18%; transform: scale(.57); transform-origin: left top; }
  .todo-paper { left: 5%; bottom: 14%; transform: rotate(6deg) scale(.75); transform-origin: left bottom; }
  .phone { left: 6%; top: 31%; bottom: auto; transform: rotate(-13deg) scale(.63); transform-origin: left top; }
  .travel-pass { right: 2%; bottom: 18%; transform: rotate(-8deg) scale(.58); transform-origin: right bottom; }
}

@media (prefers-reduced-motion: reduce) {
  .ambient-layer, .mark-plate, .mark-sweep::before { animation: none !important; }
  .mark-plate, .grid-reveal, .pointer-light, .mark-illumination, .photo-reveal, .desk-artifacts { transition: none !important; }
  .typing-line { width: 25ch; animation: none !important; border: 0; }
  .grid-reveal { opacity: .20; -webkit-mask-image: radial-gradient(circle 230px at var(--px) var(--py), #000, transparent); mask-image: radial-gradient(circle 230px at var(--px) var(--py), #000, transparent); }
  .pointer-light, .pointer-probe, .mark-sweep, .mark-illumination, .photo-reveal { display: none !important; }
}