/* =====================================================================
   srinivijay.com — "Sensor View" identity x "The Traverse" structure
   Palette: green = sensor HUD / active state; amber = route, rover,
   waypoints and driven states. Never the same role for both.
   ===================================================================== */
:root{
  --ground:#050605; --panel:#0b0d0b; --grid:#1b211d; --hair:#283029;
  --cw:#e6f0ea; --muted:#8e9a92;
  --ph:#7cff9a; --am:#ffb347;
  --ph-60:rgba(124,255,154,.6); --ph-35:rgba(124,255,154,.35); --ph-20:rgba(124,255,154,.2); --ph-08:rgba(124,255,154,.08);
  --am-50:rgba(255,179,71,.5); --am-25:rgba(255,179,71,.25);
  --cw-80:rgba(230,240,234,.82); --cw-60:rgba(230,240,234,.6); --cw-40:rgba(230,240,234,.42); --cw-25:rgba(230,240,234,.26);
  --disp:"Barlow Condensed","Arial Narrow",sans-serif;
  --body:"Barlow",system-ui,-apple-system,sans-serif;
  --mono:"Fira Code",ui-monospace,Menlo,monospace;
  --bar:52px;
  --pad:clamp(16px,4vw,56px);
  --lane:96px;
  --max:1360px;
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
html{background:var(--ground);scroll-behavior:smooth;scroll-padding-top:calc(var(--bar) + 8px);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--ground);color:var(--cw);font-family:var(--body);font-size:17.5px;line-height:1.55;overflow-x:hidden;-webkit-font-smoothing:antialiased;font-variant-numeric:tabular-nums}
img,video,canvas,svg{display:block;max-width:100%}
a{color:inherit}
button{font:inherit}
::selection{background:var(--ph);color:var(--ground)}
:focus-visible{outline:1px solid var(--ph);outline-offset:3px}
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:fixed;left:12px;top:-60px;z-index:100;background:var(--ph);color:var(--ground);font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;padding:10px 14px;text-decoration:none;transition:top .2s}
.skip:focus{top:10px}
.mono{font-family:var(--mono)}
.ph{color:var(--ph)} .am{color:var(--am)} .dim{color:var(--cw-40)}

/* ---------- fixed background: contour scan + grain ---------- */
#terrain{position:fixed;left:-120px;top:-120px;width:calc(100vw + 240px);height:calc(100vh + 240px);z-index:0;pointer-events:none;will-change:transform}
.motion #terrain{animation:drift 140s ease-in-out infinite alternate}
@keyframes drift{from{transform:translate3d(0,0,0)}to{transform:translate3d(-90px,-70px,0)}}
.grain{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.045;mix-blend-mode:overlay;background-size:160px 160px}
.world,.site-foot,.page{position:relative;z-index:1}

/* ---------- corner brackets ---------- */
.brk{position:absolute;inset:0;pointer-events:none;--c:var(--ph);--l:14px;z-index:3;
  background:
   linear-gradient(var(--c),var(--c)) 0 0/var(--l) 1px no-repeat,
   linear-gradient(var(--c),var(--c)) 0 0/1px var(--l) no-repeat,
   linear-gradient(var(--c),var(--c)) 100% 0/var(--l) 1px no-repeat,
   linear-gradient(var(--c),var(--c)) 100% 0/1px var(--l) no-repeat,
   linear-gradient(var(--c),var(--c)) 0 100%/var(--l) 1px no-repeat,
   linear-gradient(var(--c),var(--c)) 0 100%/1px var(--l) no-repeat,
   linear-gradient(var(--c),var(--c)) 100% 100%/var(--l) 1px no-repeat,
   linear-gradient(var(--c),var(--c)) 100% 100%/1px var(--l) no-repeat}

/* =====================================================================
   0. HUD BAR
   ===================================================================== */
.bar{position:fixed;top:0;left:0;right:0;height:var(--bar);z-index:50;display:flex;align-items:center;gap:18px;padding:0 var(--pad);
  background:rgba(5,6,5,.88);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--grid)}
.brand{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-decoration:none;color:var(--cw);display:flex;align-items:center;gap:8px;white-space:nowrap;flex:none}
.brand .dot{width:7px;height:7px;background:var(--ph);box-shadow:0 0 10px var(--ph)}
.brand .sl{color:var(--ph)}
.tabs{flex:1;display:flex;justify-content:center;gap:0;overflow-x:auto;scrollbar-width:none;min-width:0;-webkit-mask-image:linear-gradient(90deg,transparent,#000 12px,#000 calc(100% - 12px),transparent);mask-image:linear-gradient(90deg,transparent,#000 12px,#000 calc(100% - 12px),transparent)}
.tabs::-webkit-scrollbar{display:none}
.tabs a{position:relative;font-family:var(--mono);font-size:11.5px;letter-spacing:.13em;text-decoration:none;color:var(--cw-40);padding:0 12px;height:var(--bar);display:flex;align-items:center;gap:7px;white-space:nowrap;transition:color .25s;flex:none}
.tabs a i{font-style:normal;font-size:9.5px;color:var(--cw-25);transition:color .25s}
.tabs a::after{content:"";position:absolute;left:12px;right:12px;bottom:-1px;height:2px;background:var(--ph);transform:scaleX(0);transform-origin:left;transition:transform .35s cubic-bezier(.6,0,.2,1)}
.tabs a:hover{color:var(--cw)}
.tabs a.on{color:var(--ph)}
.tabs a.on i{color:var(--ph)}
.tabs a.on::after{transform:scaleX(1)}
.tabs a:focus-visible{outline:1px solid var(--ph);outline-offset:-8px}
.readout{flex:none;font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--cw-60);display:flex;gap:8px;align-items:center;white-space:nowrap;text-transform:uppercase}
.readout .rec{width:7px;height:7px;border-radius:50%;background:var(--am);box-shadow:0 0 0 3px rgba(255,179,71,.18);animation:blink 1.6s steps(2,start) infinite}
.readout b{color:var(--am);font-weight:500}
.readout .yr{color:var(--cw);font-weight:500}
.readout .sep{color:var(--cw-25)}
.readout .coord{width:23ch;text-align:center;color:var(--cw-80);overflow:hidden;text-overflow:ellipsis}
@keyframes blink{to{visibility:hidden}}

/* =====================================================================
   1. HERO
   ===================================================================== */
.hero{position:relative;min-height:100vh;min-height:100svh;padding:calc(var(--bar) + 28px) var(--pad) 128px;display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(20px,4vw,64px);align-items:center;max-width:1480px;margin:0 auto}
.hero-copy{position:relative;z-index:4}
.kicker{font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--cw-60);margin:0 0 18px;text-transform:uppercase}
.kicker b{color:var(--ph);font-weight:500}
.name{font-family:var(--disp);font-weight:700;text-transform:uppercase;font-size:clamp(76px,10.4vw,172px);line-height:.84;letter-spacing:-.012em;margin:0}
.name span{display:block}
.name .n2{color:var(--ph);text-shadow:0 0 38px rgba(124,255,154,.22)}
.fullname{font-family:var(--mono);font-size:12.5px;letter-spacing:.05em;color:var(--cw-80);margin:18px 0 0}
.fullname b{color:var(--cw);font-weight:500}
.lede{font-size:clamp(17px,1.3vw,19.5px);line-height:1.55;color:var(--cw-80);max-width:34em;margin:18px 0 24px}
.hud{position:relative;font-family:var(--mono);font-size:12px;letter-spacing:.06em;padding:11px 16px;border:1px solid var(--ph-35);background:rgba(5,6,5,.6);display:inline-flex;flex-wrap:wrap;gap:4px 12px;color:var(--cw-80)}
.hud b{color:var(--ph);font-weight:500}
.hud .v{color:var(--cw);display:inline-block;min-width:3ch}
.hud .sep{color:var(--cw-25)}
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));max-width:540px;margin:24px 0 0;padding:0;list-style:none;border-top:1px solid var(--grid)}
.stats li{padding:14px 14px 0 0;margin-right:14px;border-right:1px solid var(--grid);min-width:0}
.stats li:last-child{border-right:0;margin-right:0}
.stats b{display:block;font-family:var(--disp);font-weight:700;font-size:34px;line-height:1;color:var(--cw)}
.stats span{display:block;margin-top:5px;font-family:var(--mono);font-size:10px;letter-spacing:.1em;color:var(--cw-60);text-transform:uppercase;line-height:1.4}
.hint{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;color:var(--cw-40);margin:20px 0 0;text-transform:uppercase}

.cloud-wrap{position:relative;height:min(76vh,820px);min-height:420px;width:100%;z-index:2}
.cloud-wrap canvas{position:absolute;inset:0;width:100%;height:100%}
/* no photo fallback: the hero shows the point cloud or an empty scan frame, never the raw headshot */
.cloud-wrap canvas{opacity:0;transition:opacity .6s}
.cloud-wrap.live canvas{opacity:1}
.cloud-wrap>.brk{--l:22px;--c:rgba(124,255,154,.7)}
.axis{position:absolute;font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--cw-40);text-transform:uppercase;z-index:3}
.axis.t{top:10px;left:14px}.axis.r{top:10px;right:14px;text-align:right}
.axis.b{bottom:10px;left:14px}.axis.br{bottom:10px;right:14px;text-align:right}
.ruler{position:absolute;top:8%;bottom:8%;right:-2px;width:10px;pointer-events:none;background:repeating-linear-gradient(to bottom,rgba(124,255,154,.35) 0 1px,transparent 1px 24px)}
.ruler::after{content:"";position:absolute;inset:0;width:5px;left:5px;background:repeating-linear-gradient(to bottom,rgba(124,255,154,.2) 0 1px,transparent 1px 6px)}
.reticle{position:absolute;width:46px;height:46px;margin:-23px 0 0 -23px;pointer-events:none;opacity:0;transition:opacity .2s;left:0;top:0;z-index:4}
.reticle .brk{--l:9px;--c:var(--ph)}
.reticle::before,.reticle::after{content:"";position:absolute;background:var(--ph)}
.reticle::before{left:50%;top:18px;width:1px;height:10px}
.reticle::after{top:50%;left:18px;height:1px;width:10px}
.reticle span{position:absolute;left:54px;top:4px;font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;color:var(--ph);white-space:nowrap;background:rgba(5,6,5,.85);padding:2px 6px;border:1px solid var(--ph-35)}
.cloud-wrap.aim .reticle{opacity:1}

.trailhead{position:absolute;left:0;right:0;bottom:30px;height:24px;z-index:4;pointer-events:none}
.trailhead .probe{position:absolute;left:50%;top:12px}
.trail-cue{position:absolute;left:calc(50% + 40px);top:3px;font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--cw-60);white-space:nowrap}
.trail-cue b{color:var(--am);font-weight:500}
.trail-cue .go{color:var(--cw)}
.probe{position:absolute;width:0;height:0;pointer-events:none}

/* =====================================================================
   2. TRAVERSE
   ===================================================================== */
.world{overflow-x:clip}
#route{position:absolute;top:0;left:0;z-index:3;pointer-events:none;overflow:visible}
.r-planned{fill:none;stroke:rgba(255,179,71,.32);stroke-width:1.3;stroke-linecap:round;stroke-dasharray:1 7}
.r-glow{fill:none;stroke:rgba(255,179,71,.16);stroke-width:10;stroke-linecap:round}
.r-driven{fill:none;stroke:var(--am);stroke-width:2.2;stroke-linecap:round}
.r-ticks line{stroke:rgba(255,179,71,.28);stroke-width:1}
.r-ticks line.major{stroke:rgba(255,179,71,.5)}
.r-legs text{font-family:"Fira Code",monospace;font-size:10px;letter-spacing:.12em;fill:rgba(230,240,234,.42)}
.r-legs text tspan.a{fill:rgba(255,179,71,.85)}
.wpm .halo{fill:none;stroke:var(--am);stroke-width:1;opacity:0;transition:opacity .6s}
.wpm .ring{fill:var(--ground);stroke:var(--am);stroke-width:1.4;transition:fill .5s}
.wpm text{font-family:"Fira Code",monospace;font-size:9.5px;font-weight:500;fill:var(--am);transition:fill .5s}
.wpm.on .ring{fill:var(--am)}
.wpm.on text{fill:var(--ground)}
.wpm.on .halo{opacity:.5}
.startm rect{fill:var(--ground);stroke:var(--am);stroke-width:1.4}
.endm .ring,.startm .ring{fill:none;stroke:var(--am);stroke-width:1}
.endm .r1,.startm .r1{opacity:.7}.endm .r2,.startm .r2{opacity:.32}
.endm .pole{stroke:var(--cw);stroke-width:1.4}
.endm .flag{fill:var(--am)}
.endm .base{fill:var(--am)}
#rover .lamp{fill:url(#roverGlow)}
#rover .scan{fill:url(#scanCone)}
#rover .chassis{fill:var(--am);stroke:var(--ground);stroke-width:1}
#rover .wheel{fill:var(--ground);stroke:var(--am);stroke-width:1}
#rover .deck{stroke:var(--ground);stroke-width:.9;opacity:.75}
#rover .mast{fill:var(--ground);stroke:var(--am);stroke-width:1}
#rover .pulse{fill:none;stroke:var(--am);stroke-width:1.2;animation:pulse 2s ease-out infinite;transform-box:fill-box;transform-origin:center}
@keyframes pulse{0%{stroke-opacity:.8;transform:scale(.6)}100%{stroke-opacity:0;transform:scale(1.5)}}

.traverse{position:relative;padding:40px 0 0}
.ch{position:relative;padding:clamp(110px,15vh,160px) var(--pad)}
.ch-grid{position:relative;max-width:var(--max);margin:0 auto;display:grid;column-gap:0;row-gap:0;
  grid-template-columns:minmax(0,7fr) var(--lane) minmax(0,5fr);grid-template-rows:auto 1fr;
  grid-template-areas:"media lane head" "media lane body"}
.ch.even .ch-grid{grid-template-columns:minmax(0,5fr) var(--lane) minmax(0,7fr);grid-template-areas:"head lane media" "body lane media"}
.ch-media{grid-area:media;min-width:0;position:relative;z-index:4;display:flex;flex-direction:column;gap:22px}
.ch-head{grid-area:head;min-width:0;position:relative;z-index:4}
.ch-body{grid-area:body;min-width:0;position:relative;z-index:4}
.ch-lane{grid-area:lane;position:relative}
.ch-lane .p-top{left:50%;top:0}
.ch-lane .p-wp{left:50%;top:34px}
.ch-lane .p-bot{left:50%;bottom:0}

/* waypoint header */
.wp-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:0 0 14px}
.wp-no{font-family:var(--disp);font-weight:700;font-size:64px;line-height:.8;letter-spacing:-.02em;color:transparent;-webkit-text-stroke:1px var(--am-50);transition:color .7s,-webkit-text-stroke-color .7s}
.ch.is-reached .wp-no{color:var(--am);-webkit-text-stroke-color:var(--am)}
.mode{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ground);background:var(--ph);padding:3px 8px;font-weight:500}
.wp-tag{font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--cw-40)}
.ch.is-reached .wp-tag{color:var(--am)}
h2.disp{font-family:var(--disp);font-weight:700;text-transform:uppercase;font-size:clamp(42px,4.6vw,76px);line-height:.9;letter-spacing:-.006em;margin:0 0 20px;text-wrap:balance}
h2.disp em{font-style:normal;color:var(--ph)}
.wp-meta{display:grid;grid-template-columns:auto 1fr;gap:3px 14px;margin:0 0 26px;padding:12px 0 0;border-top:1px solid var(--grid);font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;color:var(--cw-80)}
.wp-meta dt{color:var(--cw-40);text-transform:uppercase;letter-spacing:.14em;font-size:10px;padding-top:2px}
.wp-meta dd{margin:0}
.wp-meta .arr{color:var(--am);padding:0 4px}

.copy p{margin:0 0 1.05em;color:var(--cw-80);max-width:62ch}
.copy p b{color:var(--cw);font-weight:500}
.tags{list-style:none;margin:22px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.tags li{font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;border:1px solid var(--hair);padding:4px 8px 3px;color:var(--cw-80);line-height:1.45}
.tags li.hot{border-color:var(--ph-35);color:var(--ph)}
.plog-h{font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;color:var(--cw-60);text-transform:uppercase;margin:26px 0 10px}
.plog{list-style:none;margin:0;padding:0;font-family:var(--mono);font-size:12.5px;line-height:1.5;border-top:1px solid var(--grid)}
.plog li{display:grid;grid-template-columns:118px 1fr;gap:12px;padding:8px 0;border-bottom:1px solid var(--grid);color:var(--cw-80)}
.plog li span:first-child{color:var(--ph)}

/* photo frame + tags */
.frame{position:relative;margin:0;background:var(--panel);overflow:hidden;outline:1px solid var(--ph-20);outline-offset:-1px}
.frame img{width:100%;height:100%;object-fit:cover}
.frame>.brk{--c:var(--ph-60);--l:12px}
.ar-16x9{aspect-ratio:16/9}.ar-21x9{aspect-ratio:21/9}.ar-4x3{aspect-ratio:4/3}.ar-3x2{aspect-ratio:3/2}.ar-1x1{aspect-ratio:1/1}.ar-4x5{aspect-ratio:4/5}
.src{display:inline-block;font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;padding:3px 7px;background:rgba(5,6,5,.8);border:1px solid var(--cw-25);color:var(--cw-80);white-space:nowrap;max-width:100%;overflow:hidden;text-overflow:ellipsis;line-height:1.5}
.src.field{border-color:var(--ph-35);color:var(--ph)}
.src.source{border-color:var(--cw-40);color:var(--cw)}
.src.render{border-color:var(--cw-25);color:var(--cw-60);border-style:dashed}
.src.fig{border-color:var(--cw-25);color:var(--cw-60)}
.frame .src{position:absolute;left:10px;bottom:10px;z-index:4}
.frame .src.tr{left:auto;right:10px;bottom:auto;top:10px}
.cap{font-family:var(--mono);font-size:11px;letter-spacing:.04em;color:var(--cw-60);margin:8px 0 0;line-height:1.5}

/* cover box: an overlay layer sized like the photo under object-fit:cover */
.cq{container-type:size}
.cover{position:absolute;left:50%;top:50%;width:max(100%,calc(100cqh * var(--ar,1.7778)));aspect-ratio:var(--ar,1.7778);transform:translate(-50%,-50%)}
.cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:fill}

/* detection boxes (fiducial + stereo) */
.det{position:absolute;color:var(--ph)}
.det .brk{--c:currentColor;--l:10px}
.det span{position:absolute;left:-1px;bottom:100%;margin-bottom:5px;font-family:var(--mono);font-size:10.5px;letter-spacing:.05em;white-space:nowrap;background:rgba(5,6,5,.8);padding:2px 6px;border-left:2px solid currentColor;color:var(--cw)}
.det.in span{bottom:auto;top:5px;left:5px;margin:0}
.det.pt{width:10px;height:10px}
.det.fid{color:var(--ph)}
.hline{position:absolute;left:0;right:0;height:0;border-top:1px dashed rgba(230,240,234,.5)}
.hline span{position:absolute;right:12px;bottom:4px;font-family:var(--mono);font-size:10px;letter-spacing:.12em;color:var(--cw-80);text-transform:uppercase;background:rgba(5,6,5,.6);padding:1px 5px}
.motion .fiducial .det{opacity:0;transform:scale(1.15);transition:opacity .45s,transform .45s cubic-bezier(.2,.7,.2,1)}
.motion .fiducial .det.seen{opacity:1;transform:none}

/* ---------- 01 dark frame ---------- */
.darkframe{aspect-ratio:16/9}
.darkframe img{object-position:50% 40%}
.motion .darkframe img{filter:brightness(.07) contrast(1.5) grayscale(1)}
.df-read{position:absolute;right:10px;top:10px;z-index:4;font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--cw-60);background:rgba(5,6,5,.8);border:1px solid var(--ph-20);padding:5px 9px;text-align:right;line-height:1.6}
.df-read b{color:var(--ph);font-weight:500}
.calib{border:1px solid var(--ph-20);background:rgba(5,6,5,.7);padding:14px 16px 12px;font-family:var(--mono);font-size:12px;line-height:1.75;color:var(--cw-80)}
.calib .cmd{margin:0 0 6px;color:var(--cw)}
.calib .cmd .pr{color:var(--ph)}
.calib ol{list-style:none;margin:0;padding:0}
.calib li{display:flex;gap:10px;align-items:baseline}
.calib li .k{flex:none;color:var(--cw)}
.calib li .d{flex:1;min-width:0;color:var(--cw-40);overflow:hidden;white-space:nowrap;text-overflow:clip}
.calib li .d::after{content:" ......................................................................................"}
.calib li .v{flex:none;color:var(--ph)}

/* ---------- 03 stereo ---------- */
.stereo-view{position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;background:var(--panel);user-select:none;-webkit-user-select:none;touch-action:pan-y;--split:50%;cursor:ew-resize;outline:1px solid var(--ph-20);outline-offset:-1px}
.cam{position:absolute;inset:0;margin:0;overflow:hidden}
.cam-l{clip-path:inset(0 calc(100% - var(--split)) 0 0)}
.cam-r{clip-path:inset(0 0 0 var(--split))}
.cam img{pointer-events:none}
.cam-tag{position:absolute;top:10px;font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;display:flex;gap:6px;align-items:center;z-index:5}
.cam-l .cam-tag{left:10px}
.cam-r .cam-tag{right:10px}
.cam-tag b{background:var(--ph);color:var(--ground);padding:3px 7px;font-weight:500}
.divider{position:absolute;top:0;bottom:0;left:var(--split);width:44px;margin-left:-22px;cursor:ew-resize;z-index:6;outline:none;touch-action:none}
.divider::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;background:var(--ph);box-shadow:0 0 12px rgba(124,255,154,.8)}
.divider .grip{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:var(--ground);border:1px solid var(--ph);color:var(--ph);font-family:var(--mono);font-size:11px;letter-spacing:.1em;padding:8px;white-space:nowrap}
.divider:focus-visible .grip{background:var(--ph);color:var(--ground)}
.stereo-foot{display:flex;justify-content:space-between;gap:6px 16px;flex-wrap:wrap;font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--cw-60);text-transform:uppercase;padding:10px 0;border-bottom:1px solid var(--grid);margin-top:-12px}
.stereo-foot b{color:var(--ph);font-weight:500}
.thumbs{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.thumbs figure{margin:0;min-width:0}
.thumbs .frame{aspect-ratio:4/5}
.thumbs figcaption{font-family:var(--mono);font-size:10px;letter-spacing:.05em;color:var(--cw-60);margin-top:6px;line-height:1.45;text-transform:uppercase}
.thumbs figcaption .src,.strip figcaption .src,.cap .src{white-space:normal;overflow:visible}
.thumbs figcaption .src{margin-bottom:4px}
.stereo-tags{display:grid;grid-template-columns:auto auto auto auto;justify-content:start;align-items:center;gap:6px 8px;margin:-10px 0 0;font-family:var(--mono);font-size:10px;color:var(--cw-40)}
.stereo-tags span:not(.src){letter-spacing:.12em}
.stereo-tags span:nth-child(3){margin-left:8px}
.stereo-tags .src{min-width:0;white-space:normal}
@media (max-width:640px){.stereo-tags{grid-template-columns:auto minmax(0,1fr)}.stereo-tags span:nth-child(3){margin-left:0}}
.strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:0}
.strip figure{margin:0;min-width:0}
.strip .frame{aspect-ratio:4/3}
.strip figcaption{font-family:var(--mono);font-size:10px;letter-spacing:.05em;color:var(--cw-60);margin-top:6px;line-height:1.45;text-transform:uppercase}
.strip figcaption .src{margin-bottom:4px}

/* ---------- 04 RTK map ---------- */
.gps-pair{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px}
.map{position:relative;aspect-ratio:4/3;background:#070907;outline:1px solid var(--grid);overflow:hidden}
.map canvas{position:absolute;inset:0;width:100%;height:100%}
.map>.brk{--c:var(--ph-60);--l:16px}
.fix{position:absolute;top:10px;left:10px;z-index:4;display:flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;padding:5px 9px;border:1px solid var(--ph);color:var(--ph);background:rgba(5,6,5,.85)}
.fix i{width:8px;height:8px;background:currentColor;box-shadow:0 0 10px currentColor;animation:blink 1s steps(2,start) infinite}
.map-read{position:absolute;top:10px;right:10px;z-index:4;text-align:right;font-family:var(--mono);font-size:10.5px;line-height:1.75;letter-spacing:.08em;color:var(--cw-60);text-transform:uppercase}
.map-read b{color:var(--cw);font-weight:500}
.map-foot{position:absolute;left:10px;bottom:8px;right:10px;z-index:4;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;color:var(--cw-40);text-transform:uppercase}
.map-foot b{color:var(--ph);font-weight:500}
.wps{list-style:none;margin:0;padding:0;font-family:var(--mono);font-size:12px;border-top:1px solid var(--grid);align-self:start}
.wps li{display:grid;grid-template-columns:40px 1fr auto;gap:10px;padding:9px 0;border-bottom:1px solid var(--grid);color:var(--cw-60);transition:color .3s}
.wps li b{font-weight:500;color:var(--cw-25);transition:color .3s}
.wps li em{font-style:normal;color:var(--cw-40)}
.wps li.hit{color:var(--cw)}.wps li.hit b{color:var(--ph)}

/* ---------- 05 spectral ---------- */
.spec-main{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--panel);outline:1px solid var(--ph-20);outline-offset:-1px}
.spec-main .layer{position:absolute;inset:0}
.spec-main .layer img{width:100%;height:100%;object-fit:cover}
.spec-main .top{clip-path:inset(0 0 100% 0)}
.spec-main .top.run{clip-path:inset(0 0 0 0);transition:clip-path .95s cubic-bezier(.65,0,.3,1)}
.pushbar{position:absolute;left:0;right:0;top:0;height:2px;background:var(--cw);box-shadow:0 0 14px var(--ph),0 0 3px #fff;opacity:0;pointer-events:none;z-index:3}
.pushbar.run{animation:push .95s cubic-bezier(.65,0,.3,1) forwards}
@keyframes push{0%{top:0;opacity:1}92%{opacity:1}100%{top:100%;opacity:0}}
.spec-main .src.tr{z-index:5}
.band-read{position:absolute;left:10px;bottom:10px;z-index:5;font-family:var(--mono);font-size:11px;letter-spacing:.06em;background:rgba(5,6,5,.82);border:1px solid var(--ph-35);padding:5px 9px;color:var(--cw)}
.band-read b{color:var(--ph);font-weight:500}
.spec-row{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:16px;align-items:start}
.bands{display:flex;gap:0;border:1px solid var(--ph-35)}
.bands button{flex:1 1 0;min-width:0;appearance:none;background:transparent;border:0;border-right:1px solid var(--ph-35);color:var(--cw-80);font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;padding:10px 2px;cursor:pointer;transition:background .2s,color .2s}
.bands button:last-child{border-right:0}
.bands button small{display:block;font-size:9px;letter-spacing:.14em;color:var(--cw-40);margin-top:2px}
.bands button:hover{color:var(--cw);background:var(--ph-08)}
.bands button[aria-pressed="true"]{background:var(--ph);color:var(--ground)}
.bands button[aria-pressed="true"] small{color:rgba(5,6,5,.6)}
.bands button:focus-visible{outline:1px solid var(--cw);outline-offset:-4px}
.refl{border:1px solid var(--grid);padding:10px 10px 4px;background:rgba(5,6,5,.6);margin-top:12px}
.refl svg{width:100%;height:auto}
.refl-h #lamRead{text-transform:none}
.refl-h{display:flex;justify-content:space-between;font-family:var(--mono);font-size:10px;letter-spacing:.12em;color:var(--cw-60);text-transform:uppercase}
.b-450{filter:url(#b450)}.b-550{filter:url(#b550)}.b-650{filter:url(#b650)}.b-800{filter:url(#b800)}
.kpis{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--grid);border-left:1px solid var(--grid);margin:24px 0 0;padding:0;list-style:none}
.kpis li{padding:14px 14px 12px;border-right:1px solid var(--grid);border-bottom:1px solid var(--grid)}
.kpis b{display:block;font-family:var(--disp);font-weight:700;font-size:clamp(32px,3vw,46px);line-height:1;color:var(--cw)}
.kpis b.sm{font-size:clamp(22px,2vw,28px);color:var(--ph);padding-top:6px}
.kpis span{font-family:var(--mono);font-size:10px;letter-spacing:.1em;color:var(--cw-60);text-transform:uppercase}

/* ---------- 06 moon (full-bleed) ---------- */
.ch.moon{padding-top:clamp(140px,20vh,220px);padding-bottom:clamp(140px,20vh,220px);overflow:hidden}
.moon-vis{position:absolute;left:0;right:0;top:0;height:min(100%,1080px);z-index:0;background:#000}
.moon-vis video{transform:scaleX(-1);object-position:0% 50%!important}
.moon-vis img,.moon-vis video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:62% 50%}
.moon-vis canvas{position:absolute;inset:0;width:100%;height:100%;z-index:1}
.moon-vis::after{content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
  background:linear-gradient(90deg,rgba(5,6,5,.95) 0%,rgba(5,6,5,.86) 30%,rgba(5,6,5,.35) 50%,rgba(5,6,5,.05) 72%,rgba(5,6,5,.25) 100%),
             linear-gradient(180deg,var(--ground) 0%,rgba(5,6,5,0) 16%,rgba(5,6,5,0) 80%,var(--ground) 100%)}
.moon-vis .src{position:absolute;right:var(--pad);top:clamp(80px,12vh,120px);z-index:3}
.ch.moon .ch-grid{position:static}
.ch.moon .ch-media{position:static;z-index:auto;justify-content:space-between;min-height:620px}
.moon-top{position:relative;z-index:4;align-self:flex-end;display:flex;flex-direction:column;align-items:flex-end;gap:8px}
.moon-read{position:relative;text-align:right;font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;line-height:1.8;color:var(--cw-60);text-transform:uppercase;background:rgba(5,6,5,.55);padding:6px 10px;border:1px solid var(--ph-20)}
.moon-read b{color:var(--ph);font-weight:500}
.moon-insets{position:relative;z-index:4;display:grid;grid-template-columns:1fr 1fr;gap:14px;align-self:flex-end;width:min(100%,640px)}
.moon-inset{margin:0;min-width:0}
.moon-inset.photo .frame{background:var(--panel)}
.moon-inset.photo .frame img{object-fit:cover}
.moon-inset .frame{aspect-ratio:16/10;background:#fff}
.moon-inset .frame img{object-fit:contain}
.subsys{display:grid;grid-template-columns:1fr 1fr;gap:0 18px;margin:8px 0 0;font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;max-width:480px}
.subsys div{display:flex;justify-content:space-between;border-bottom:1px solid var(--grid);padding:6px 0;color:var(--cw-80);text-transform:uppercase}
.subsys div b{color:var(--ph);font-weight:500}
.pi{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--cw-60);text-transform:uppercase;margin:0 0 6px}

/* ---------- terminus ---------- */
.terminus{position:relative;height:300px}
.terminus .probe{left:50%;top:150px}
.term-label{position:absolute;left:calc(50% + 46px);top:104px;z-index:4;font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--cw-60);line-height:1.75}
.term-label b{display:block;color:var(--am);font-weight:500;font-size:12px}

/* =====================================================================
   3. LOG
   ===================================================================== */
.sec{position:relative;padding:40px var(--pad) clamp(80px,12vh,140px);max-width:1480px;margin:0 auto;z-index:4}
.sec-id{font-family:var(--mono);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--cw-60);display:flex;align-items:center;gap:12px;margin:0 0 18px;flex-wrap:wrap}
.sec-id .n{color:var(--ground);background:var(--ph);padding:2px 7px;font-weight:500}
.sec-id::after{content:"";flex:1;min-width:40px;height:1px;background:linear-gradient(90deg,var(--ph-35),transparent)}
.term{position:relative;border:1px solid var(--ph-35);background:rgba(3,5,4,.94)}
.term-h{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:10px 16px;border-bottom:1px solid var(--ph-35);font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--cw-60);text-transform:uppercase}
.term-h b{color:var(--ph);font-weight:500}
.term-b{display:grid;grid-template-columns:minmax(0,1fr) 340px}
.log{padding:18px 20px 22px;font-family:var(--mono);font-size:13px;line-height:1.55;min-width:0}
.cmd{color:var(--cw);margin:0 0 10px;word-break:break-word}
.cmd .pr{color:var(--ph)}
.cmd.gap{margin-top:26px}
.cm{color:var(--cw-40)}
.ll{list-style:none;margin:0;padding:0}
.ll li{display:grid;grid-template-columns:48px 92px 1fr;gap:10px;padding:3px 0;color:var(--cw-80)}
.ll li:hover{background:var(--ph-08)}
.ll time{color:var(--cw-40)}
.ll .tg{color:var(--ph)}
.ll li.now{color:var(--cw)}
.ll li.now .tg{background:var(--ph);color:var(--ground);padding:0 4px;justify-self:start}
.pp li{grid-template-columns:28px 112px 1fr}
.pp li .fa{color:var(--ph)}
.links{list-style:none;margin:12px 0 0;padding:0}
.links li{padding:2px 0}
.links a,.contact a{color:var(--ph);text-decoration:none;border-bottom:1px solid var(--ph-35)}
.links a:hover,.contact a:hover{border-bottom-color:var(--ph)}
.contact{display:grid;grid-template-columns:96px 1fr;gap:6px 10px;margin:0;color:var(--cw-80)}
.contact dt{color:var(--cw-40)}
.contact dd{margin:0;display:flex;flex-wrap:wrap;gap:8px 12px;align-items:center}
.email{user-select:all;-webkit-user-select:all;color:var(--cw)}
.copybtn{appearance:none;background:transparent;border:1px solid var(--ph-35);color:var(--ph);font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;padding:3px 9px;cursor:pointer}
.copybtn:hover{background:var(--ph-08)}
.copybtn.ok{background:var(--ph);color:var(--ground)}
.cursor{display:inline-block;width:9px;height:15px;background:var(--ph);vertical-align:-2px;animation:blink 1.05s steps(2,start) infinite}
.attach{border-left:1px solid var(--ph-35);padding:18px;display:flex;flex-direction:column;gap:18px}
.attach-h{font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;color:var(--cw-60);text-transform:uppercase;margin:0 0 8px}
.attach figure{margin:0}
.attach .frame{aspect-ratio:4/3}
.attach .frame img{object-position:52% 40%}
.attach figcaption{font-family:var(--mono);font-size:11px;line-height:1.5;color:var(--cw-80);margin-top:8px}
.attach figcaption b{color:var(--ph);font-weight:500}
.idcard{border-top:1px solid var(--grid);padding-top:16px}
.id-top{display:grid;grid-template-columns:84px 1fr;gap:14px;align-items:center}
.id-top .frame{aspect-ratio:1/1}
.id-name{font-family:var(--disp);font-weight:700;text-transform:uppercase;font-size:24px;line-height:.95;margin:0}
.id-name span{display:block;font-family:var(--mono);font-weight:400;font-size:10.5px;letter-spacing:.1em;color:var(--cw-60);text-transform:uppercase;margin-top:6px}
.idcard dl{margin:14px 0 0;display:grid;grid-template-columns:74px 1fr;gap:6px 10px;font-family:var(--mono);font-size:11px;line-height:1.5}
.idcard dt{color:var(--cw-40);text-transform:uppercase;letter-spacing:.12em;font-size:10px;padding-top:1px}
.idcard dd{margin:0;color:var(--cw-80)}
.idcard dd a{color:var(--ph);text-decoration:none;border-bottom:1px solid var(--ph-35)}
.idcard dd a:hover{border-bottom-color:var(--ph)}

/* =====================================================================
   4. FOOTER
   ===================================================================== */
.site-foot{max-width:1480px;margin:0 auto;padding:22px var(--pad) 48px;display:flex;justify-content:space-between;gap:10px 24px;flex-wrap:wrap;font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--cw-40);border-top:1px solid var(--grid)}
.site-foot a{color:var(--cw-80);text-decoration:none;border-bottom:1px solid var(--cw-25)}
.site-foot a:hover{color:var(--cw);border-bottom-color:var(--cw-60)}

/* =====================================================================
   projects.html / 404
   ===================================================================== */
.page{max-width:1240px;margin:0 auto;padding:calc(var(--bar) + 56px) var(--pad) 80px}
.page-h{font-family:var(--disp);font-weight:700;text-transform:uppercase;font-size:clamp(52px,8vw,120px);line-height:.86;letter-spacing:-.01em;margin:0 0 18px}
.page-h em{font-style:normal;color:var(--ph)}
.page-lede{max-width:62ch;color:var(--cw-80);margin:0 0 30px}
.page-actions{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 48px}
.btn{display:inline-flex;align-items:center;gap:10px;padding:10px 14px;border:1px solid var(--ph-35);color:var(--ph);text-decoration:none;font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;transition:background .25s,color .25s}
.btn:hover,.btn:focus-visible{background:var(--ph);color:var(--ground)}
.era{margin:0 0 40px}
.era h2.cmd{font-size:13px;font-weight:400;line-height:1.55;margin-bottom:14px}
.era .term-b{display:block}
.pl{list-style:none;margin:0;padding:0}
.pl li{display:grid;grid-template-columns:150px minmax(0,1fr);gap:4px 18px;padding:12px 0;border-bottom:1px solid var(--grid)}
.pl li:last-child{border-bottom:0}
.pl time{color:var(--cw-40);font-size:12px;padding-top:2px}
.pl h3{font-family:var(--mono);font-size:13.5px;font-weight:500;color:var(--cw);margin:0;letter-spacing:.01em}
.pl h3 .pi{display:inline;margin:0 0 0 8px;font-size:10.5px;color:var(--ph);letter-spacing:.12em}
.pl p{margin:4px 0 0;font-family:var(--body);font-size:16px;line-height:1.5;color:var(--cw-80);max-width:68ch}
.pubs{list-style:none;margin:0;padding:0;counter-reset:p}
.pubs li{display:grid;grid-template-columns:34px minmax(0,1fr) 150px;gap:4px 14px;padding:10px 0;border-bottom:1px solid var(--grid);font-size:12.5px}
.pubs li:last-child{border-bottom:0}
.pubs .no{color:var(--cw-40)}
.pubs .t{color:var(--cw);font-family:var(--body);font-size:16px;line-height:1.4}
.pubs .a{display:block;color:var(--cw-60);font-size:12px;margin-top:3px;font-family:var(--mono)}
.pubs .v{color:var(--ph);text-align:right}
.fa{display:inline-block;margin-left:8px;font-size:9.5px;letter-spacing:.12em;border:1px solid var(--ph-35);color:var(--ph);padding:0 5px;vertical-align:2px;text-transform:uppercase}
.legend-fa{font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--cw-60);margin:0 0 12px}
.lost{min-height:100vh;min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding:calc(var(--bar) + 40px) var(--pad) 60px;max-width:1100px;margin:0 auto}
.lost svg{width:120px;height:auto;margin:0 0 26px}

/* =====================================================================
   RESPONSIVE
   ===================================================================== */
@media (max-width:1180px){
  .readout .coord,.readout .sep.c{display:none}
  .term-b{grid-template-columns:1fr}
  .attach{border-left:0;border-top:1px solid var(--ph-35);display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:start}
  :root{--lane:80px}
}
@media (max-width:900px){
  :root{--gut:46px}
  .hero{grid-template-columns:1fr;padding:calc(var(--bar) + 12px) var(--pad) 120px var(--pad);gap:6px;align-items:start}
  .cloud-wrap{order:-1;height:min(92vw,52vh);min-height:300px}
  .trailhead .probe{left:22px}
  .trail-cue{left:46px}
  .ch{padding:72px var(--pad) 72px var(--gut)}
  .ch-grid,.ch.even .ch-grid{grid-template-columns:minmax(0,1fr);grid-template-rows:none;grid-template-areas:"head" "media" "body";position:static}
  .ch-lane{position:absolute;left:0;top:0;bottom:0;width:var(--gut)}
  .ch-lane .p-top,.ch-lane .p-wp,.ch-lane .p-bot{left:22px}
  .ch-lane .p-top{top:72px}.ch-lane .p-bot{bottom:72px}
  .ch-lane .p-wp{top:104px}
  .ch-body{margin-top:26px}
  .wp-no{font-size:52px}
  .spec-row,.gps-pair{grid-template-columns:1fr}
  .strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ch.moon{padding-top:72px;padding-bottom:72px}
  .ch.moon .ch-media{min-height:0;position:relative}
  .moon-vis{position:relative;inset:auto;height:auto;aspect-ratio:16/10;margin:0 calc(-1 * var(--pad)) 0 0}
  .moon-vis::after{background:linear-gradient(0deg,rgba(5,6,5,.7) 0%,rgba(5,6,5,0) 35%)}
  .moon-vis .src{right:10px;bottom:10px}
  .moon-read{display:none}
  .moon-top{align-self:flex-start;margin-top:8px}
  .moon-insets{align-self:stretch;width:auto;margin-top:16px}
  .terminus{height:240px}
  .terminus .probe{left:22px;top:110px}
  .term-label{left:62px;top:66px}
  .sec{padding-left:var(--pad)}
}
@media (max-width:640px){
  :root{--bar:48px}
  body{font-size:16px}
  .bar{gap:10px}
  .brand .txt{display:none}
  .tabs{justify-content:flex-start}
  .tabs a{padding:0 9px;font-size:11px;letter-spacing:.08em}
  .tabs a i{display:none}
  .tabs a::after{left:9px;right:9px}
  .readout{font-size:10.5px;gap:6px;letter-spacing:.06em}
  .readout .rec,.readout .yrl{display:none}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stats li:nth-child(2){border-right:0;margin-right:0}
  .stats li:nth-child(n+3){padding-top:12px}
  .hud{font-size:11px;padding:9px 11px}
  .hint{display:none}
  .trail-cue{font-size:9.5px;letter-spacing:.1em}
  .trail-cue .opt{display:none}
  h2.disp{font-size:clamp(38px,11vw,52px)}
  .det span{font-size:9px;padding:1px 4px}
  .det.minor,.hline span{display:none}
  .frame .src.tr{top:auto;bottom:8px;left:8px;right:auto;font-size:9px}
  .frame .src{font-size:9px;left:8px;bottom:8px}
  .cam-tag{font-size:9px;top:auto;bottom:8px}
  .cam-tag .x{display:none}
  .divider .grip{padding:6px 5px;font-size:10px}
  .stereo-foot .x{display:none}
  .subsys{grid-template-columns:1fr}
  .plog li{grid-template-columns:1fr;gap:2px}
  .map-read{display:none}
  .df-read{font-size:9.5px}
  .calib{font-size:11px;padding:12px}
  .log{padding:14px 12px;font-size:12px}
  .ll li{grid-template-columns:40px 1fr;gap:2px 8px}
  .ll li span:last-child{grid-column:1/-1;padding-left:48px}
  .pp li{grid-template-columns:24px 1fr}
  .pp li span:last-child{grid-column:2;padding-left:0}
  .contact{grid-template-columns:1fr}
  .contact dd{margin-bottom:8px}
  .attach{grid-template-columns:1fr}
  .pl li{grid-template-columns:1fr}
  .pubs li{grid-template-columns:28px minmax(0,1fr)}
  .pubs .v{grid-column:2;text-align:left}
  .wp-meta{grid-template-columns:1fr;gap:0}
  .wp-meta dd{margin-bottom:6px}
  .term-label{font-size:9.5px;letter-spacing:.12em}
}
@media (hover:none){.hint{display:none}}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .cloud-wrap canvas{transition:none}
  .readout .rec,.fix i,.cursor,#rover .pulse{animation:none}
  .spec-main .top.run{transition:none}
  .pushbar.run{animation:none}
}