/* OZVES site styles. Plain CSS, no build step. */

:root{
  --canvas:#EDF0F0;
  --canvas-deep:#0E1316;
  --panel:#F7F8F8;
  --accent:#C9531A;
  --accent-hover:#B04514;
  --accent-muted:rgba(201,83,26,.28);
  --text-secondary:#525D65;
  --text-primary:#151A1E;
  --on-dark:#E9EDEE;
  --on-dark-2:#9AA6AD;
  --on-dark-body:#C3CCD0;
  --field-line-dark:#6F7B82;
  --hair-light:rgba(21,26,30,.14);
  --hair-dark:rgba(233,237,238,.14);
  --ease-out:cubic-bezier(.22,.8,.26,1);
  --ease-io:cubic-bezier(.65,0,.35,1);
  --tshadow:0 1px 2px rgba(5,7,9,.95),0 3px 12px rgba(5,7,9,.78),0 10px 44px rgba(5,7,9,.8);
  --display:"Archivo",system-ui,-apple-system,"Segoe UI",sans-serif;
  --body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,"Cascadia Mono",Consolas,monospace;
  --gut:clamp(20px,6vw,120px);
  --nav-h:68px;
}

*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{overflow-x:hidden;overflow-x:clip;scroll-behavior:smooth;background:var(--canvas-deep);-webkit-text-size-adjust:100%}
body{margin:0;overflow-x:hidden;overflow-x:clip;background:var(--canvas-deep);color:var(--text-primary);font:400 1.0625rem/1.6 var(--body);-webkit-font-smoothing:antialiased;animation:pagein 1s var(--ease-out) both}
@keyframes pagein{from{opacity:0}to{opacity:1}}
img{max-width:100%;display:block}
.mono{font-family:var(--mono);font-weight:500}
.sr{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}

.skip{position:absolute;left:12px;top:-64px;z-index:100;padding:10px 16px;border-radius:4px;background:var(--accent);color:#fff;text-decoration:none;transition:transform .3s var(--ease-out)}
.skip:focus{transform:translateY(76px)}

/* One environment layer: faint pipe rings drifting over the whole page */
.env{position:fixed;inset:-20vh 0;z-index:40;pointer-events:none;opacity:.5;background:repeating-radial-gradient(circle at 50% 140%,rgba(140,152,158,.07) 0 1px,transparent 1px 26px);animation:envdrift 96s var(--ease-io) -30s infinite alternate;will-change:transform}
@keyframes envdrift{from{transform:translate3d(0,-6vh,0)}to{transform:translate3d(0,6vh,0)}}

/* ---------- Nav ---------- */
.nav{position:fixed;inset:0 0 auto 0;z-index:50;height:var(--nav-h);display:flex;align-items:center;gap:clamp(12px,2.4vw,32px);padding-inline:var(--gut);color:var(--on-dark);transition:background-color .5s var(--ease-out),color .5s var(--ease-out),box-shadow .5s var(--ease-out)}
.nav::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background:linear-gradient(to bottom,rgba(8,11,13,.72),rgba(8,11,13,0));transition:opacity .5s var(--ease-out)}
.nav.on-light{background:rgba(237,240,240,.9);color:var(--text-primary);box-shadow:0 1px 0 var(--hair-light);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}
.nav.on-light::before{opacity:0}
.brand{display:inline-flex;align-items:center;gap:10px;margin-right:auto;color:inherit;text-decoration:none;font:800 1.15rem/1 var(--display);font-stretch:112%;letter-spacing:.06em}
.mark{width:28px;height:28px;flex:none}
.mark .pads{stroke:var(--accent)}
.nav-links{display:flex;gap:clamp(16px,2.2vw,32px)}
.nav-links a{color:inherit;text-decoration:none;font-size:.95rem;font-weight:500;opacity:.86;transition:opacity .3s var(--ease-out)}
.nav-links a:hover{opacity:1}
.lang{display:inline-flex;border:1px solid currentColor;border-radius:4px;overflow:hidden}
.lang button{appearance:none;border:0;background:transparent;color:inherit;font:500 .75rem/1 var(--mono);letter-spacing:.08em;padding:8px 10px;cursor:pointer;transition:background-color .3s var(--ease-out),color .3s var(--ease-out)}
.nav .lang button[aria-pressed="true"],.foot .lang button[aria-pressed="true"]{background:var(--on-dark);color:var(--canvas-deep)}
.nav.on-light .lang button[aria-pressed="true"]{background:var(--text-primary);color:var(--canvas)}

/* ---------- Buttons ---------- */
.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:.6em;min-height:48px;padding:0 1.5em;border:1px solid transparent;border-radius:4px;font:500 1rem/1 var(--body);letter-spacing:.01em;text-decoration:none;white-space:nowrap;cursor:pointer;transition:background-color .35s var(--ease-out),border-color .35s var(--ease-out),color .35s var(--ease-out)}
.btn-sm{min-height:40px;padding:0 1.1em;font-size:.9rem}
.btn-wide{width:100%}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover)}
.btn-primary::after{content:"";position:absolute;inset:-1px;border-radius:inherit;pointer-events:none;box-shadow:0 0 0 1px rgba(201,83,26,.35),0 8px 30px rgba(201,83,26,.45);opacity:.15;animation:glow 5.2s var(--ease-io) -1.7s infinite paused}
.inview .btn-primary::after,.nav .btn-primary::after{animation-play-state:running}
@keyframes glow{0%,100%{opacity:.15}50%{opacity:.6}}
.btn-ghost{color:var(--on-dark);border-color:rgba(233,237,238,.6)}
.btn-ghost:hover{background:rgba(233,237,238,.12)}
.btn-outline{color:var(--text-primary);border-color:var(--text-primary)}
.btn-outline:hover{background:var(--text-primary);color:var(--canvas)}

/* ---------- Hero: the scroll journey ---------- */
.hero{position:relative;height:560vh;background:var(--canvas-deep)}
.stage{position:sticky;top:0;height:100vh;overflow:hidden;isolation:isolate;color:var(--on-dark)}
.poster{position:absolute;inset:0;background:var(--canvas-deep) center/cover no-repeat}
#hero{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transform:translateZ(0);transition:opacity .9s var(--ease-out)}
.stage.video-ready #hero{opacity:1}
.stage.video-failed #hero{display:none}
/* Base scrim, two-sided: the text columns dim, the center lane where the robot climbs stays bright */
.scrim{position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,rgba(8,11,13,.62) 0%,rgba(8,11,13,.42) 30%,rgba(8,11,13,0) 47%,rgba(8,11,13,0) 53%,rgba(8,11,13,.42) 70%,rgba(8,11,13,.62) 100%),radial-gradient(ellipse 120% 90% at 50% 45%,rgba(8,11,13,0) 35%,rgba(8,11,13,.62) 100%)}
.ring{position:absolute;left:50%;bottom:36px;width:44px;height:44px;margin-left:-22px;color:var(--on-dark);transition:opacity .6s var(--ease-out)}
.ring-fill{transform:rotate(-90deg);transform-origin:50% 50%}
.stage.video-ready .ring{opacity:0}
.cue{position:absolute;left:50%;bottom:34px;width:36px;height:36px;margin-left:-18px;color:var(--on-dark);opacity:.8}
.cue svg{width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;animation:bob 2.6s var(--ease-io) -.6s infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(6px)}}

.band{position:absolute;top:50%;z-index:2;width:min(38vw,560px);transform:translateY(-50%);isolation:isolate;opacity:0;pointer-events:none;text-shadow:var(--tshadow)}
.band.left{left:var(--gut)}
.band.right{right:var(--gut)}
.band.b1{opacity:1;--sa:.72}
.band.live{pointer-events:auto}
/* Settle sits in the calmest region of the delivered ending frame: left side, between the upper and lower arms */
.band.settle{top:clamp(88px,17vh,190px);bottom:auto;transform:none;width:min(36vw,540px)}
.band::before{content:"";position:absolute;inset:-22% -26%;z-index:-1;pointer-events:none;opacity:calc(.25 + .75*var(--k,1));background:radial-gradient(ellipse 62% 60% at 50% 50%,rgba(5,7,9,var(--sa,.66)) 0%,rgba(5,7,9,calc(var(--sa,.66)*.67)) 46%,rgba(5,7,9,0) 76%)}
.band .btn{text-shadow:none}

.kicker{display:flex;align-items:center;gap:.8em;margin:0 0 1.1rem;font:500 .78rem/1.2 var(--mono);letter-spacing:.14em;color:var(--on-dark-2)}
.kicker::before{content:"";flex:none;width:22px;height:2px;background:var(--accent);animation:kick 4.8s var(--ease-io) -1.2s infinite paused}
.inview .kicker::before{animation-play-state:running}
@keyframes kick{0%,100%{opacity:1}50%{opacity:.45}}
.band.b1 .kicker{opacity:var(--k,1)}

.h-hero{margin:0;font:800 clamp(2.4rem,5vw,4.9rem)/1.02 var(--display);font-stretch:112%;letter-spacing:-.012em;max-width:13ch;color:var(--on-dark)}
.h-band{margin:0;font:600 clamp(1.7rem,3.1vw,3rem)/1.1 var(--display);font-stretch:112%;letter-spacing:-.008em;max-width:17ch}
.h-settle{margin:0 0 1.2rem;font:800 clamp(2.2rem,4.2vw,4rem)/1 var(--display);font-stretch:112%;letter-spacing:-.014em;max-width:12ch}
.band .sub{margin:0 0 1.6rem;max-width:40ch;color:#D3DADD;font-size:clamp(1rem,1.25vw,1.2rem)}
.cta-row{display:flex;flex-wrap:wrap;gap:12px}

/* Split text, built once per language by site.js */
.split .v{display:block}
.split .w{display:inline-block;white-space:nowrap}
.split .line{display:block}
.fx-depth .w{--kc:clamp(0,(var(--k,0) - var(--th,0))*2.4,1);opacity:var(--kc);transform:scale(calc(.8 + .2*var(--kc)));transform-origin:50% 70%}
.fx-part .line{--kc:clamp(0,(var(--k,0) - var(--th,0))*2.2,1);opacity:var(--kc);transform:translateX(calc((1 - var(--kc))*var(--jx,0px)))}
.fx-blur .v{display:grid}
.fx-blur .copy{grid-area:1/1}
.fx-blur .soft{filter:blur(10px);opacity:calc((1 - var(--k,0))*.85)}
.fx-blur .sharp{opacity:var(--k,0)}
.fx-rise .w{--kc:clamp(0,(var(--k,0) - var(--th,0))*3,1);opacity:var(--kc);transform:translateY(calc((1 - var(--kc))*30px))}
.band.b4 .sub{--ks:clamp(0,(var(--k,0) - .66)*4,1);opacity:var(--ks);transform:translateY(calc((1 - var(--ks))*14px))}
.band.b4 .cta-row{--kb:clamp(0,(var(--k,0) - .78)*5,1);opacity:var(--kb);transform:translateY(calc((1 - var(--kb))*14px))}

/* Static hero: phones, portrait tablets, reduced motion */
.static-hero{display:none;position:relative;min-height:100vh;min-height:100svh;overflow:hidden;color:var(--on-dark)}
.static-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 45%}
.static-shade{position:absolute;inset:0;background:linear-gradient(to top,rgba(8,11,13,.94) 0%,rgba(8,11,13,.6) 42%,rgba(8,11,13,.15) 70%,rgba(8,11,13,.5) 100%)}
.static-copy{position:relative;display:flex;flex-direction:column;justify-content:flex-end;min-height:100vh;min-height:100svh;padding:calc(var(--nav-h) + 24px) var(--gut) clamp(40px,8vh,72px);text-shadow:var(--tshadow)}
.static-copy .h-hero{margin-bottom:1rem}
.static-copy .sub{margin:0 0 1.6rem;max-width:36ch;color:#D3DADD}
.static-copy .btn{align-self:flex-start;text-shadow:none}

@media (max-width: 720px), (orientation: portrait) and (max-width: 1024px), (orientation: portrait) and (pointer: coarse), (orientation: landscape) and (pointer: coarse) and (max-height: 560px), (prefers-reduced-motion: reduce){
  .hero{height:auto}
  .stage{display:none}
  .static-hero{display:block}
}
@media (max-height:560px){.ring,.cue,.meter{display:none}}

/* ---------- The tether line and metre counter ---------- */
.after{position:relative}
.tether{position:absolute;top:0;left:calc(var(--gut)/2 - 1px);z-index:30;width:2px;height:100%;overflow:visible;pointer-events:none}
.tether path{fill:none;stroke:var(--accent);stroke-width:2;vector-effect:non-scaling-stroke;stroke-dasharray:1 1;stroke-dashoffset:1}
.meter{position:absolute;top:0;left:calc(var(--gut)/2);z-index:31;padding:5px 8px;border:1px solid var(--accent-muted);border-radius:3px;background:rgba(14,19,22,.86);color:var(--on-dark);font-size:.7rem;line-height:1;white-space:nowrap;pointer-events:none;opacity:0;transform:translate3d(-50%,0,0);transition:opacity .5s var(--ease-out);will-change:transform}
.meter.on{opacity:1}
@media (max-width:1100px){.meter{display:none}}
@media (max-width:720px){.tether{display:none}}

/* ---------- Sections ---------- */
.sec{position:relative;padding-block:clamp(96px,15vh,176px)}
.dark{background:var(--canvas-deep);color:var(--on-dark)}
.light{background:var(--canvas);color:var(--text-primary)}
.light .kicker{color:var(--text-secondary)}
.wrap{position:relative;width:min(1240px,100% - 2*var(--gut));margin-inline:auto}
.h2{margin:0;font:800 clamp(2rem,4vw,3.5rem)/1.05 var(--display);font-stretch:112%;letter-spacing:-.012em;max-width:17ch;text-wrap:balance}
.h3{margin:0 0 .5rem;font:600 clamp(1.15rem,1.5vw,1.35rem)/1.25 var(--display);font-stretch:112%}
.sec p{margin:0;max-width:52ch}
.dark p{color:var(--on-dark-body)}
.light p{color:var(--text-secondary)}
.sec-head{margin-bottom:clamp(40px,6vh,64px)}

.js .reveal{opacity:0;transform:translate3d(0,22px,0);transition:opacity 1s var(--ease-out),transform 1s var(--ease-out);transition-delay:var(--d,0s)}
.js .reveal.in{opacity:1;transform:none}
.js .reveal.done{transition-delay:0s!important}

.dust{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.dust::before,.dust::after{content:"";position:absolute;inset:-50% 0;background-image:radial-gradient(circle,rgba(233,237,238,.55) 0 1px,transparent 1.6px);background-size:140px 160px;opacity:.16;animation:dust 38s linear -9s infinite paused}
.dust::after{background-size:230px 210px;opacity:.1;animation-duration:61s;animation-delay:-23s}
.inview .dust::before,.inview .dust::after{animation-play-state:running}
@keyframes dust{from{transform:translate3d(0,0,0)}to{transform:translate3d(-40px,-25%,0)}}

/* S1 The problem */
.problem-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:clamp(40px,7vw,120px);align-items:start}
.problem-lead{position:sticky;top:calc(var(--nav-h) + 40px)}
.rows{list-style:none;margin:0;padding:0}
.row{display:grid;grid-template-columns:56px minmax(0,1fr);align-items:baseline;gap:16px;padding:32px 0;border-top:1px solid var(--hair-dark)}
.row:last-child{border-bottom:1px solid var(--hair-dark)}
.num{font-size:.8rem;letter-spacing:.08em;color:var(--on-dark-2)}

/* S2 The interactive moment */
.s-see{padding-bottom:0}
.see-head{margin-bottom:clamp(32px,5vh,56px)}
/* The corrosion spot sits at 66% / 56% of pipe-wall.jpg; matching background-position keeps it there at every aspect ratio */
.pipe-view{position:relative;height:min(80vh,820px);min-height:460px;overflow:hidden;background:#07090A;--sx:66%;--sy:56%;--sw:16%;--sh:28%}
.pv-img{position:absolute;inset:0;background:url("pipe-wall.jpg") 66% 56%/cover no-repeat}
.pv-dark{filter:brightness(.16) saturate(.5) contrast(1.1)}
.pv-lit{opacity:var(--p,0);-webkit-mask-image:radial-gradient(ellipse 34% 42% at var(--sx) var(--sy),#000 0%,rgba(0,0,0,.85) 38%,transparent 100%);mask-image:radial-gradient(ellipse 34% 42% at var(--sx) var(--sy),#000 0%,rgba(0,0,0,.85) 38%,transparent 100%)}
.pv-bracket{position:absolute;left:calc(var(--sx) - var(--sw)/2);top:calc(var(--sy) - var(--sh)/2);width:var(--sw);height:var(--sh);overflow:visible;pointer-events:none;opacity:0;transform:scale(1.25);transition:opacity .8s var(--ease-out) .15s,transform 1s var(--ease-out) .15s}
.pv-bracket path{fill:none;stroke:var(--accent);stroke-width:2;vector-effect:non-scaling-stroke}
.lit .pv-bracket{opacity:1;transform:none}
.chip{margin:0;padding:7px 10px;border:1px solid rgba(96,96,126,.3);border-radius:6px;background:rgba(8,8,15,.55);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);text-shadow:0 1px 3px rgba(5,5,10,.85);font-size:.74rem;letter-spacing:.06em;white-space:nowrap}
.s-see .pv-label{position:absolute;left:calc(var(--sx) + var(--sw)/2 + 14px);top:calc(var(--sy) - var(--sh)/2);color:var(--on-dark);opacity:0;transform:translate3d(-8px,0,0);transition:opacity .7s var(--ease-out) .5s,transform .7s var(--ease-out) .5s}
.lit .pv-label{opacity:1;transform:none}
.hold{position:absolute;left:50%;bottom:clamp(28px,6vh,56px);display:inline-flex;align-items:center;gap:14px;padding:10px 20px 10px 10px;border:1px solid var(--accent-muted);border-radius:999px;background:rgba(14,19,22,.78);color:var(--on-dark);font:500 .95rem/1.2 var(--body);cursor:pointer;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;touch-action:none;transform:translateX(-50%);transition:opacity .6s var(--ease-out),border-color .3s var(--ease-out)}
.hold:hover{border-color:var(--accent)}
.hold-ring{width:44px;height:44px;flex:none;transform:rotate(-90deg)}
.hold-ring circle{fill:none;stroke-width:3;stroke:rgba(233,237,238,.2)}
.hold-ring .hold-fill{stroke:var(--accent);stroke-dasharray:126;stroke-dashoffset:var(--ho,126)}
.hold-dot{position:absolute;left:10px;top:50%;width:44px;height:44px;margin-top:-22px;pointer-events:none}
.hold-dot::before{content:"";position:absolute;left:50%;top:50%;width:10px;height:10px;margin:-5px 0 0 -5px;border-radius:50%;background:var(--accent);box-shadow:0 0 16px 4px rgba(201,83,26,.55);animation:dot 3.6s var(--ease-io) -.8s infinite paused}
.inview .hold-dot::before{animation-play-state:running}
@keyframes dot{0%,100%{opacity:.45;transform:scale(.8)}50%{opacity:1;transform:scale(1)}}
.lit .hold{opacity:0;pointer-events:none}
.s-see .pv-after{position:absolute;left:50%;bottom:clamp(28px,6vh,56px);width:max-content;max-width:calc(100% - 40px);margin:0;text-align:center;font:600 clamp(1.2rem,2.2vw,1.8rem)/1.2 var(--display);font-stretch:112%;color:var(--on-dark);text-shadow:var(--tshadow);opacity:0;transform:translate3d(-50%,10px,0);transition:opacity .9s var(--ease-out) 1s,transform .9s var(--ease-out) 1s}
.lit .pv-after{opacity:1;transform:translate3d(-50%,0,0)}

.dawn{height:38vh;background:linear-gradient(to bottom,var(--canvas-deep) 0%,#2A3136 40%,#9AA3A7 75%,var(--canvas) 100%)}

/* S3 The robots */
.robots{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,2.2vw,32px)}
.robot{display:flex;flex-direction:column;padding:clamp(16px,1.6vw,22px) clamp(16px,1.6vw,22px) 22px;border:1px solid rgba(21,26,30,.1);border-radius:6px;background:var(--panel)}
.robot-img{margin:0 0 20px;aspect-ratio:4/3;overflow:hidden;border-radius:3px;background:#E2E6E7}
.robot-img img{width:100%;height:100%;object-fit:cover;transition:transform 1.4s var(--ease-out)}
.robot:hover .robot-img img{transform:scale(1.035)}
.role{margin:0 0 .4rem;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--text-secondary)}
.robot-name{margin-bottom:.6rem;font-weight:800;font-size:clamp(1.4rem,2vw,1.75rem)}
.robot p{font-size:1rem}
.chips{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:18px 0 12px;padding:0}
.chips li{padding:6px 9px;border:1px solid rgba(21,26,30,.22);border-radius:3px;color:var(--text-primary);font-size:.72rem;letter-spacing:.04em}
.ruler{display:block;width:100%;height:34px;margin:4px 0 14px;overflow:visible}
.ruler .base{stroke:rgba(21,26,30,.3);stroke-width:1}
.ruler .tick{stroke:rgba(21,26,30,.35);stroke-width:1}
.ruler text{font:500 8.5px var(--mono);fill:var(--text-secondary)}
.ruler .range{fill:var(--accent);transform-box:fill-box;transform-origin:0 50%;transform:scaleX(0);transition:transform 1.4s var(--ease-out) .35s}
.ruler .arrow{fill:none;stroke:var(--accent);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;opacity:0;transition:opacity .6s var(--ease-out) 1.5s}
.robot.in .ruler .range{transform:scaleX(1)}
.robot.in .ruler .arrow{opacity:1}
.link-cta{position:relative;align-self:flex-start;display:inline-flex;align-items:center;min-height:44px;margin-top:auto;overflow:hidden;color:var(--text-primary);font-weight:500;text-decoration:none;transition:color .3s var(--ease-out)}
.link-cta::before{content:"";position:absolute;left:0;right:0;bottom:8px;height:1px;background:var(--accent)}
.link-cta::after{content:"";position:absolute;left:0;right:0;bottom:8px;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.95),transparent);transform:translate3d(-100%,0,0);animation:glint 7s var(--ease-io) infinite paused}
.inview .link-cta::after{animation-play-state:running}
.robot:nth-child(2) .link-cta::after{animation-delay:-2.3s}
.robot:nth-child(3) .link-cta::after{animation-delay:-4.6s}
@keyframes glint{0%,60%{transform:translate3d(-100%,0,0)}100%{transform:translate3d(100%,0,0)}}
.link-cta:hover{color:var(--accent-hover)}

/* S4 How it works */
.steps-grid,.faq-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:clamp(40px,7vw,120px);align-items:start}
.steps-head,.faq-head{position:sticky;top:calc(var(--nav-h) + 40px);margin-bottom:0}
.steps{list-style:none;margin:0;padding:0}
.step{display:grid;grid-template-columns:64px minmax(0,1fr);gap:clamp(16px,2.4vw,32px);align-items:start;padding:34px 0;border-top:1px solid var(--hair-light)}
.step:last-child{border-bottom:1px solid var(--hair-light)}
.icon{width:52px;height:52px;overflow:visible}
.icon path{fill:none;stroke:var(--text-primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1 1;stroke-dashoffset:1;transition:stroke-dashoffset 1.6s var(--ease-out) .2s}
.step.in .icon path{stroke-dashoffset:0}
.step-num{margin:0 0 .35rem;font-size:.78rem;letter-spacing:.1em;color:var(--accent)}

/* S5 Two ways */
.paths{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(12px,1.6vw,20px)}
.path{display:flex;flex-direction:column;gap:18px;min-height:360px;padding:clamp(28px,4vw,64px);border-radius:6px}
.path .h3{margin:0;font-weight:800;font-size:clamp(1.6rem,2.8vw,2.5rem);line-height:1.05}
.path .btn{margin-top:auto;align-self:flex-start}
.path-service{background:var(--canvas-deep);color:var(--on-dark)}
.light .path-service p{color:var(--on-dark-body)}
.path-own{border:1px solid rgba(21,26,30,.1);background:var(--panel)}

/* S6 FAQ */
.qa{border-top:1px solid var(--hair-light)}
.qa:last-child{border-bottom:1px solid var(--hair-light)}
.q{margin:0}
.q button{display:flex;width:100%;align-items:baseline;justify-content:space-between;gap:24px;padding:26px 0;border:0;background:none;color:var(--text-primary);font:600 clamp(1.05rem,1.45vw,1.25rem)/1.35 var(--display);font-stretch:112%;text-align:left;cursor:pointer}
.q i{position:relative;flex:none;align-self:center;width:14px;height:14px}
.q i::before,.q i::after{content:"";position:absolute;left:0;top:6px;width:14px;height:2px;background:var(--accent);transition:transform .45s var(--ease-out)}
.q i::after{transform:rotate(90deg)}
.qa.open .q i::after{transform:rotate(0deg)}
.a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .55s var(--ease-out)}
.a>div{overflow:hidden;visibility:hidden;transition:visibility 0s linear .55s}
.qa.open .a{grid-template-rows:1fr}
.qa.open .a>div{visibility:visible;transition-delay:0s}
.a p{padding:0 0 26px;opacity:0;transition:opacity .5s var(--ease-out)}
.qa.open .a p{opacity:1}

/* S7 Quote */
.s-quote{background:var(--canvas);padding-bottom:clamp(64px,10vh,120px)}
.quote-grid{padding:clamp(28px,5vw,80px);border-radius:8px;background:var(--canvas-deep);color:var(--on-dark)}
.quote-lead{margin-bottom:clamp(32px,5vh,56px)}
.quote-lead .h2{max-width:20ch;margin-bottom:1.4rem}
.s-quote .quote-call{display:inline;margin-right:.8em;color:var(--on-dark-body)}
.phone{display:inline-block;padding-bottom:4px;border-bottom:2px solid var(--accent);color:var(--on-dark);font:800 clamp(1.4rem,2.6vw,2.2rem)/1 var(--display);font-stretch:112%;text-decoration:none;white-space:nowrap}
.quote-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 24px}
.field{grid-column:1/-1;display:flex;flex-direction:column;gap:8px}
.field.half{grid-column:auto}
.field label{font:500 .72rem/1.2 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--on-dark-2)}
.field input,.field select,.field textarea{width:100%;min-height:50px;padding:12px 14px;border:1px solid var(--field-line-dark);border-radius:4px;background:rgba(233,237,238,.05);color:var(--on-dark);font:400 1rem/1.4 var(--body);transition:border-color .3s var(--ease-out),box-shadow .3s var(--ease-out),background-color .3s var(--ease-out)}
.field textarea{min-height:120px;resize:vertical}
.field ::placeholder{color:#8D989E;opacity:1}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-muted);background:rgba(233,237,238,.08)}
.field select{appearance:none;padding-right:40px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5l5 5 5-5' fill='none' stroke='%239AA6AD' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;background-size:12px 8px}
.field select option{color:#151A1E}
.field [aria-invalid="true"]{border-color:#E07A5F}
.quote-form .btn-wide{grid-column:1/-1;min-height:56px;margin-top:6px;font-size:1.05rem}
.s-quote .micro{grid-column:1/-1;font-size:.85rem;color:var(--on-dark-2)}
.form-success{grid-column:1/-1;padding:18px 20px;border:1px solid var(--accent-muted);border-radius:4px;background:rgba(201,83,26,.08);animation:fadeup .6s var(--ease-out) both}
.s-quote .form-success p{color:var(--on-dark)}
.s-quote .form-success .micro{margin-top:6px;color:var(--on-dark-2)}
@keyframes fadeup{from{opacity:0;transform:translate3d(0,8px,0)}to{opacity:1;transform:none}}

/* Footer */
.foot{padding-block:48px;background:var(--canvas-deep);color:var(--on-dark)}
.foot-grid{display:flex;flex-wrap:wrap;align-items:baseline;gap:16px 32px}
.foot .brand{margin-right:0}
.foot-line{margin:0 auto 0 0;color:var(--on-dark-body);font-size:.95rem}
.foot-phone{color:var(--on-dark);font-size:.9rem;text-decoration:none}
.foot-copy{margin:0;color:var(--on-dark-2);font-size:.8rem}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .nav-links{display:none}
  .problem-grid,.steps-grid,.faq-grid{grid-template-columns:1fr}
  .problem-lead,.steps-head,.faq-head{position:static}
  .steps-head,.faq-head{margin-bottom:clamp(32px,5vh,48px)}
}
@media (max-width:980px) and (min-width:721px){
  .robots{grid-template-columns:1fr}
  .robot{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);column-gap:28px;align-items:start}
  .robot-img{grid-row:1/span 7;margin:0}
}
@media (max-width:720px){
  .robots,.paths,.quote-form{grid-template-columns:1fr}
  .field.half{grid-column:1/-1}
  .path{min-height:0}
  .nav{gap:10px}
  .nav .btn-sm{padding:0 .9em}
  .pipe-view{height:72vh}
  .s-see .pv-label{left:calc(var(--sx) - var(--sw)/2);top:calc(var(--sy) + var(--sh)/2 + 12px)}
  .hold{max-width:calc(100% - 32px)}
}
@media (max-width:420px){
  .brand span{display:none}
}
@media (pointer:coarse){
  .lang button{min-width:44px;min-height:44px}
  .btn-sm{min-height:44px}
}

/* ---------- Motion preferences ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important;transition-delay:0s!important}
}
html.rm .reveal{opacity:1!important;transform:none!important}
html.rm .icon path{stroke-dashoffset:0!important}
html.rm .ruler .range{transform:scaleX(1)!important}
html.rm .ruler .arrow{opacity:1!important}
body.paused *,body.paused *::before,body.paused *::after{animation-play-state:paused!important}

/* ---------- Tuning after the self-test ---------- */
/* Legibility: a broader per-band scrim that covers the whole text box; the center lane stays untouched */
/* The ellipse radius is exactly half the pseudo box and fades to zero at 100%, so the scrim never shows a hard edge */
.band::before{inset:-34% -40%;background:radial-gradient(ellipse 50% 50% at 50% 50%,rgba(5,7,9,var(--sa,.8)) 0%,rgba(5,7,9,calc(var(--sa,.8)*.9)) 50%,rgba(5,7,9,0) 100%)}
.band.b1{--sa:.84}
/* Band 2 and the settle measured just under 3.5:1: the right column moves away from the bright center lane and both scrims deepen */
.band.b2,.band.settle{--sa:.9}
.band.right{width:min(32vw,460px)}
.band.b2::before,.band.settle::before{inset:-44% -52%}
.band .kicker,.band .sub{color:var(--on-dark)}
/* The tether line grows by transform instead of dash offset, so its tip always meets the metre chip */
.tether{transform-origin:0 0;transform:scaleY(0);will-change:transform}
.tether path{stroke-dasharray:none;stroke-dashoffset:0}
/* Soft hand-off from the pipe view into the dawn band */
.pipe-view::after{content:"";position:absolute;left:0;right:0;bottom:0;z-index:1;height:24%;pointer-events:none;background:linear-gradient(to bottom,rgba(14,19,22,0),var(--canvas-deep))}
.pv-bracket,.s-see .pv-label,.hold,.s-see .pv-after{z-index:2}
/* An absolutely positioned pill at left:50% shrinks to half the width, so the hold label wrapped to three lines on phones */
.hold{width:max-content}
/* The problem and seeing sections are one continuous dark stretch: tighten the gap between them */
.s-problem{padding-bottom:clamp(48px,8vh,96px)}
.s-see{padding-top:clamp(48px,8vh,96px)}