/* ============================ TOKENS ============================ */
:root{
  --red:#e52a21;
  --cream:#ede4dd;
  --ink:#241f1b;            /* warm dark grey */
  --bg:var(--cream);
  --fg:var(--red);
  --muted:color-mix(in oklab, var(--fg) 58%, transparent);
  --faint:color-mix(in oklab, var(--fg) 34%, transparent);
  --line:color-mix(in oklab, var(--fg) 18%, transparent);
  --hair:color-mix(in oklab, var(--fg) 11%, transparent);
  --card:color-mix(in oklab, var(--fg) 5%, transparent);
  --sans:"Aktiv Grotesk","Helvetica Neue",Helvetica,Arial,"Segoe UI",system-ui,sans-serif;
  --mono:"Aktiv Grotesk","Helvetica Neue",Helvetica,Arial,"Segoe UI",system-ui,sans-serif;
  --pad:25px;
  --maxw:1680px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
html[data-theme="dark"]{ --bg:#17130f; --fg:var(--red); }
/* dark-grey closing block — used sparingly for contrast */
.endcap{ --bg:#211c18; --fg:var(--red); background:#211c18; color:var(--red); }
html[data-theme="dark"] .endcap{ --bg:#0f0c09; background:#0f0c09; }

*{box-sizing:border-box}
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior:auto; } }
body{
  margin:0; background:var(--bg); color:var(--fg);
  font-family:var(--sans); font-weight:400; letter-spacing:-.012em;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
::selection{ background:var(--red); color:#fff; }
a{ color:inherit; text-decoration:none; }
img,svg{ display:block; }

/* ============================ TYPE ============================ */
.mono{ font-family:var(--mono); font-size:.74rem; letter-spacing:.1em; text-transform:uppercase; }
.tnum{ font-variant-numeric:tabular-nums; }
h1,h2,h3,p{ margin:0; }
.display{
  font-weight:700; line-height:.92; letter-spacing:-.032em;
  font-size:clamp(2.9rem,8.5vw,7rem); text-wrap:balance;
}
.lead{
  font-weight:500; line-height:1.04; letter-spacing:-.026em;
  font-size:clamp(1.9rem,4.6vw,4.25rem); text-wrap:balance;
}
.body{ font-size:clamp(1rem,1.15vw,1.18rem); line-height:1.5; color:var(--muted); max-width:46ch; }

/* ============================ LAYOUT ============================ */
.wrap{ width:100%; max-width:var(--maxw); margin-inline:auto; padding-inline:var(--pad); }
section{ position:relative; }
.rule{ height:1px; background:var(--line); width:100%; }
.seclabel{ display:flex; align-items:baseline; gap:.9em; color:var(--muted); }
.seclabel .idx{ color:var(--red); }

/* diamond motif — exact tilted-rectangle from the logo 'i' accent & eye pupil */
.dia{ display:inline-block; width:.8em; height:.8em; background:var(--red); -webkit-clip-path:polygon(0% 62.2%, 62.2% 0%, 100% 37.8%, 37.8% 100%); clip-path:polygon(0% 62.2%, 62.2% 0%, 100% 37.8%, 37.8% 100%); vertical-align:middle; }
.dia.sm{ width:10px; height:10px; }
@media (prefers-reduced-motion: no-preference){
  html[data-motion="on"] .dia.spin{ animation:spin 9s linear infinite; }
}
@keyframes spin{ to{ transform:rotate(405deg); } }

/* ============================ WORDMARK ============================ */
.wordmark svg{ width:100%; height:auto; }
.wordmark .wm-letters path{ fill:var(--wm-color,var(--red)); transition:fill .5s var(--ease); }
.wordmark .wm-diamond{ fill:var(--red); }
html[data-hero="cream"] .hero-wm{ --wm-color:var(--fg); }
html[data-hero="outline"] .hero-wm .wm-letters path{ fill:transparent; stroke:var(--red); stroke-width:1.1; vector-effect:non-scaling-stroke; }

/* ============================ NAV ============================ */
.topbar{
  position:sticky; top:0; z-index:50;
  display:flex; align-items:center; justify-content:space-between; gap:clamp(1.6rem,5vw,3.4rem);
  padding:.85rem var(--pad);
  background:var(--bg);
  border-bottom:1px solid var(--hair);
}
.brandmark{ display:flex; align-items:center; gap:.6em; font-weight:700; letter-spacing:-.01em; font-size:.95rem; }
.brandmark .dia{ width:11px; height:11px; }
.eyemark{ display:flex; align-items:center; }
.eyemark svg{ height:24px; width:auto; display:block; }
.eyemark svg path{ fill:var(--red); transition:fill .4s var(--ease); }
.eyemark{ transition:transform .4s var(--ease); }
.eyemark:hover{ transform:scale(1.06); }
/* eye: periodic wink + pupil tracks the mouse */
.eye-svg{ transform-origin:50% 50%; }
@media (prefers-reduced-motion: no-preference){
  html[data-motion="on"] .eye-svg{ animation:eyewink 6.5s var(--ease) infinite; }
}
@keyframes eyewink{ 0%,90%,100%{ transform:scaleY(1); } 94%{ transform:scaleY(.07); } 97.5%{ transform:scaleY(1); } }
.eye-pupil{ transition:transform .18s var(--ease); will-change:transform; }

/* custom red-dot cursor */
@media (hover:hover) and (pointer:fine){
  html.cursor-custom, html.cursor-custom *{ cursor:none !important; }
}
.cursor-dot,.cursor-ring{ position:fixed; top:0; left:0; border-radius:50%; pointer-events:none; z-index:10000; opacity:0; }
.cursor-dot{ width:9px; height:9px; background:var(--red); margin:-4.5px 0 0 -4.5px; transition:opacity .25s, transform .14s var(--ease); }
.cursor-ring{ width:36px; height:36px; margin:-18px 0 0 -18px; border:1.5px solid var(--red); transition:width .28s var(--ease),height .28s var(--ease),margin .28s var(--ease),opacity .28s,background .28s; }
html.cursor-on .cursor-dot{ opacity:1; } html.cursor-on .cursor-ring{ opacity:.55; }
html.cursor-on.cursor-link .cursor-ring{ width:62px; height:62px; margin:-31px 0 0 -31px; opacity:1; background:color-mix(in oklab,var(--red) 12%, transparent); }
html.cursor-on.cursor-link .cursor-dot{ transform:scale(.4); }
.nav{ display:flex; align-items:center; gap:clamp(.9rem,2.4vw,2.4rem); }
.nav a{ position:relative; font-family:var(--mono); font-size:1.02rem; letter-spacing:-.01em; text-transform:none; color:var(--red); padding:.2em 0; transition:color .3s, opacity .3s; }
.nav a::after{ content:""; position:absolute; left:0; bottom:-3px; width:100%; height:2px; background:var(--red); transform:scaleX(0); transform-origin:left; transition:transform .35s var(--ease); }
.nav a:hover{ color:var(--red); } .nav a:hover::after{ transform:scaleX(1); }
.status{ display:flex; align-items:center; gap:.55em; color:var(--muted); font-family:var(--mono); font-size:.7rem; letter-spacing:.13em; text-transform:uppercase; }
.dot{ width:7px; height:7px; border-radius:50%; background:var(--red); position:relative; }
@media (prefers-reduced-motion: no-preference){ html[data-motion="on"] .dot::after{ content:""; position:absolute; inset:0; border-radius:50%; background:var(--red); animation:ping 2.4s var(--ease) infinite; } }
@keyframes ping{ 0%{ transform:scale(1); opacity:.7; } 70%,100%{ transform:scale(3.4); opacity:0; } }
.nav-cta{ display:none; }
@media(max-width:760px){
  .nav .hide-sm{ display:none; }
  .status .hide-sm{ display:none; }
}

/* mobile menu (≤1024px) — two-diamond accent button */
.menu-btn{ display:none; flex-direction:row; align-items:center; justify-content:center; gap:6px; background:none; border:0; padding:8px 2px; cursor:pointer; }
.menu-btn .dia{ width:15px; height:15px; transform-origin:center center; }
@keyframes ccFlip{ from{ transform:rotateY(0deg); } to{ transform:rotateY(180deg); } }
@keyframes ccUnflip{ from{ transform:rotateY(180deg); } to{ transform:rotateY(0deg); } }
@media(max-width:800px){
  .menu-btn{ display:flex; position:relative; z-index:60; }
  .eyemark{ position:relative; z-index:60; }
  .nav{
    position:fixed; inset:0; background:var(--bg);
    flex-direction:column; align-items:flex-start; justify-content:center;
    gap:clamp(.4rem,2vw,1rem); padding:var(--pad);
    opacity:0; visibility:hidden;
    transition:opacity .4s var(--ease), visibility .4s var(--ease);
    z-index:55;
  }
  html.nav-open .nav{ opacity:1; visibility:visible; }
  .nav a{ font-size:clamp(2.2rem,9vw,4rem); color:var(--red); }
  .nav a::after{ bottom:4px; height:3px; }
  .nav .hide-sm{ display:block; }
  html.nav-open{ overflow:hidden; }
  html.nav-open .menu-btn .dia{ animation:ccFlip .4s var(--ease) forwards; }
  html.nav-closing .menu-btn .dia{ animation:ccUnflip .4s var(--ease) forwards; }
}

/* ============================ HERO ============================ */
.hero{ padding-top:clamp(6px,1.4vw,16px); padding-bottom:clamp(28px,4vw,54px); }
.hero-meta{ display:flex; justify-content:space-between; align-items:flex-end; gap:1rem; flex-wrap:wrap; color:var(--muted); margin-bottom:clamp(20px,3vw,40px); }
.hero-meta .right{ text-align:right; }
.hero-wm{ position:relative; }
.hero-wm svg{ overflow:visible; }
.hero-foot{ display:flex; justify-content:space-between; align-items:flex-start; gap:2rem; flex-wrap:wrap; margin-top:clamp(20px,3vw,44px); }
.hero-tag{ font-weight:500; letter-spacing:-.02em; line-height:1.02; font-size:clamp(1.4rem,3vw,2.6rem); max-width:18ch; text-wrap:balance; }
.scrollcue{ display:flex; align-items:center; gap:.7em; color:var(--muted); align-self:flex-end; }
.scrollcue .arr{ display:inline-block; }
@media (prefers-reduced-motion: no-preference){ html[data-motion="on"] .scrollcue .arr{ animation:bob 1.8s var(--ease) infinite; } }
@keyframes bob{ 0%,100%{ transform:translateY(0); } 50%{ transform:translateY(5px); } }

/* MARQUEE */
.marquee{ border-block:1px solid var(--line); overflow:hidden; padding-block:.7em; margin-top:clamp(26px,4vw,56px); white-space:nowrap; }
.marquee .track{ display:inline-flex; gap:0; will-change:transform; }
@media (prefers-reduced-motion: no-preference){ html[data-motion="on"] .marquee .track{ animation:scrollx 34s linear infinite; } }
@keyframes scrollx{ to{ transform:translateX(-50%); } }
.marquee .item{ display:inline-flex; align-items:center; gap:1.1em; padding-inline:1.1em; font-weight:400; letter-spacing:0; font-size:clamp(.82rem,1.1vw,1rem); }
.marquee .item .dia{ width:.52em; height:.52em; }

/* ============================ SECTION CHROME ============================ */
.sec{ padding-block:clamp(64px,10vw,150px); }
.sechead{ display:grid; grid-template-columns:minmax(0,1fr); gap:clamp(14px,2vw,26px); margin-bottom:clamp(34px,5vw,72px); }

/* INTRO */
.intro .statement{ max-width:24ch; }
.intro .statement .em{ color:var(--red); }
.intro-grid{ display:grid; grid-template-columns:1fr; gap:clamp(28px,5vw,80px); align-items:end; }
.intro-side{ display:flex; flex-direction:column; gap:1.4rem; }
@media(max-width:880px){ .intro-grid{ grid-template-columns:1fr; } }

/* WORK */
.work-grid{ display:grid; grid-template-columns:repeat(12,1fr); column-gap:clamp(16px,2.4vw,30px); row-gap:50px; }
.proj{ position:relative; display:block; }
.proj .frame{ position:relative; overflow:hidden; background:var(--card); border:1px solid var(--line); background-size:cover; background-position:center; }
.proj .ph{ position:absolute; inset:0; background-image:repeating-linear-gradient(135deg, color-mix(in oklab,var(--fg) 7%,transparent) 0 2px, transparent 2px 11px); }
.proj .frame.has-img::after{ content:none; } .proj .frame.has-img .ph{ display:none; }
.proj .frame::after{ content:attr(data-ph); position:absolute; left:14px; bottom:12px; font-family:var(--mono); font-size:.66rem; letter-spacing:.13em; text-transform:uppercase; color:var(--faint); }
.proj .frame{ transition:transform .55s var(--ease), border-color .4s; }
.proj:hover .frame{ transform:translateY(-6px); border-color:color-mix(in oklab,var(--red) 60%, var(--line)); }
.proj .hov{ display:none; }
.proj:hover .frame{ transform:translateY(-6px); border-color:color-mix(in oklab,var(--red) 60%, var(--line)); }
.proj .meta{ display:flex; justify-content:space-between; align-items:baseline; gap:1rem; margin-top:.85rem; }
.proj .pt{ font-weight:700; letter-spacing:-.02em; font-size:clamp(1.3rem,2vw,1.9rem); }
.proj .pc{ color:var(--muted); }
.proj.big{ grid-column:span 7; } .proj.big .frame{ aspect-ratio:16/11; }
.proj.tall{ grid-column:span 5; } .proj.tall .frame{ aspect-ratio:4/5; }
.proj.half{ grid-column:span 6; } .proj.half .frame{ aspect-ratio:5/4; }
@media(max-width:760px){ .proj.big,.proj.tall,.proj.half{ grid-column:span 12; } }

/* SERVICES (accordion) */
.svc{ border-top:1px solid var(--line); --svc-lead:clamp(28px,3vw,44px); --svc-gap:clamp(14px,3vw,40px); }
.svc:last-child{ border-bottom:1px solid var(--line); }
.svc-head{ display:grid; grid-template-columns:var(--svc-lead) 1fr auto; align-items:center; gap:var(--svc-gap); width:100%; background:none; border:0; color:inherit; cursor:pointer; text-align:left; padding:clamp(22px,3vw,40px) 0; font-family:inherit; }
.svc-num{ font-family:var(--mono); font-size:.8rem; color:var(--red); letter-spacing:.1em; }
.svc-title{ font-weight:700; letter-spacing:-.025em; font-size:clamp(1.7rem,4.3vw,3.4rem); line-height:1; transition:color .35s, transform .5s var(--ease); }
.svc-plus{ width:clamp(20px,2.4vw,30px); aspect-ratio:1; position:relative; flex:none; }
.svc-plus::before,.svc-plus::after{ content:""; position:absolute; inset:0; margin:auto; background:var(--fg); transition:transform .45s var(--ease), background .35s; }
.svc-plus::before{ width:100%; height:2px; } .svc-plus::after{ width:2px; height:100%; }
.svc[aria-open="true"] .svc-plus::after{ transform:rotate(90deg) scaleX(0); }
.svc[aria-open="true"] .svc-plus::before{ background:var(--red); }
.svc-head:hover .svc-title{ color:var(--red); transform:translateX(8px); }
.svc-panel{ display:grid; grid-template-rows:0fr; }
.svc[aria-open="true"] .svc-panel{ grid-template-rows:1fr; }
.svc-clip{ overflow:hidden; min-height:0; }
.svc[aria-open="true"] .svc-title{ color:var(--red); }
.svc-inner{ display:grid; grid-template-columns:1fr 1.2fr; gap:clamp(20px,4vw,70px); padding:0 0 clamp(30px,4vw,52px) calc(var(--svc-lead) + var(--svc-gap)); }
.svc-desc{ font-size:clamp(1.05rem,1.4vw,1.35rem); line-height:1.45; color:var(--muted); max-width:40ch; }
.svc-list{ display:flex; flex-wrap:wrap; gap:.6rem .7rem; align-content:start; }
.chip{ display:inline-flex; align-items:center; gap:.55em; border:1px solid var(--line); border-radius:100px; padding:.5em 1em; font-size:.92rem; color:var(--fg); }
.chip .dia{ width:9px; height:9px; }
@media(max-width:760px){ .svc-inner{ grid-template-columns:1fr; } .svc-head{ grid-template-columns:var(--svc-lead) 1fr auto; } }

/* WHY */
.why{ background:color-mix(in oklab,var(--fg) 3.5%, transparent); border-block:1px solid var(--line); }
.why-grid{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(28px,5vw,90px); align-items:start; }
.why-list{ display:grid; gap:0; }
.why-item{ display:grid; grid-template-columns:auto 1fr; gap:clamp(14px,2vw,28px); padding:clamp(18px,2.4vw,30px) 0; border-top:1px solid var(--line); align-items:baseline; }
.why-item:last-child{ border-bottom:1px solid var(--line); }
.why-item .n{ font-family:var(--mono); color:var(--red); font-size:.82rem; }
.why-item h3{ font-weight:600; font-size:clamp(1.15rem,1.7vw,1.5rem); letter-spacing:-.01em; line-height:1.15; }
.why-item p{ color:var(--muted); margin-top:.4em; font-size:1rem; line-height:1.45; max-width:42ch; }
@media(max-width:880px){ .why-grid{ grid-template-columns:1fr; } }

/* STUDIO */
.studio-grid{ display:grid; grid-template-columns:.85fr 1.15fr; gap:clamp(28px,5vw,80px); align-items:end; }
.portrait{ position:relative; aspect-ratio:4/5; background:var(--card) center/cover no-repeat; border:1px solid var(--line); overflow:hidden; }
.portrait .ph{ position:absolute; inset:0; background-image:repeating-linear-gradient(135deg, color-mix(in oklab,var(--fg) 7%,transparent) 0 2px, transparent 2px 11px); }
.portrait.has-img::after{ content:none; } .portrait.has-img .ph{ display:none; }
.studio-grid .lead .em{ color:var(--red); }
.studio-facts{ display:flex; flex-wrap:wrap; gap:clamp(20px,3vw,48px); margin-top:clamp(26px,3vw,44px); }
.studio-icons{ display:flex; gap:clamp(28px,4vw,60px); margin-top:clamp(26px,3vw,40px); }
.studio-icons .si{ display:flex; flex-direction:column; gap:.8em; align-items:flex-start; color:var(--red); }
.studio-icons .si svg{ width:clamp(30px,3.2vw,40px); height:auto; }
.studio-icons .si span{ color:var(--muted); }
.fact .big{ font-weight:700; letter-spacing:-.03em; font-size:clamp(2.2rem,3.4vw,3.4rem); line-height:1; }
.fact .lbl{ color:var(--muted); margin-top:.5em; max-width:22ch; }
.fact .big .dia{ width:.42em; height:.42em; margin-left:.1em; }
@media(max-width:880px){ .studio-grid{ grid-template-columns:1fr; } .portrait{ aspect-ratio:4/5; background-position:center; } }

/* CONTACT */
.contact{ padding-block:clamp(70px,11vw,170px); }
.contact .big{ font-weight:700; letter-spacing:-.03em; line-height:.95; font-size:clamp(2.8rem,9vw,8.5rem); text-wrap:balance; }
.contact .big .em{ color:var(--red); }
.cta-row{ display:flex; flex-wrap:wrap; gap:clamp(14px,1.6vw,20px); margin-top:clamp(30px,4vw,56px); align-items:center; }
.btn{ display:inline-flex; align-items:center; gap:.7em; padding:1em 1.5em; border-radius:100px; font-family:var(--mono); font-size:.78rem; letter-spacing:.13em; text-transform:uppercase; border:1px solid var(--line); transition:background .35s, color .35s, border-color .35s, transform .35s var(--ease); }
.btn .dia{ width:10px; height:10px; }
.btn.primary{ background:var(--red); border-color:var(--red); color:#fff; }
.btn.primary .dia{ background:#fff; }
.btn:hover{ transform:translateY(-3px); }
.btn.primary:hover{ background:color-mix(in oklab,var(--red) 86%, black); }
.btn.ghost:hover{ background:var(--fg); color:var(--bg); border-color:var(--fg); }
.btn.ghost:hover .dia{ background:var(--red); }

/* FOOTER */
.footer{ border-top:1px solid var(--line); padding-block:clamp(40px,5vw,70px); }
.foot-wm{ --wm-color:var(--fg); opacity:.96; margin-bottom:clamp(30px,4vw,56px); }
.foot-cols{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(22px,3vw,44px); }
.foot-col--right{ text-align:right; }
.foot-col--right ul{ justify-items:end; }
.foot-col h4{ font-family:var(--mono); font-size:.7rem; letter-spacing:.15em; text-transform:uppercase; color:var(--muted); font-weight:400; margin-bottom:1.1em; }
.foot-col ul{ list-style:none; margin:0; padding:0; display:grid; gap:.6em; }
.foot-col a{ color:var(--fg); transition:color .3s; position:relative; }
.foot-col a:hover{ color:var(--red); }
.foot-col p{ color:var(--muted); line-height:1.5; max-width:30ch; }
.foot-bot{ display:flex; justify-content:space-between; align-items:center; gap:1rem; flex-wrap:wrap; margin-top:clamp(36px,5vw,66px); padding-top:1.4rem; border-top:1px solid var(--hair); color:var(--muted); }
@media(max-width:760px){ .foot-cols{ grid-template-columns:1fr 1fr; } }

/* ===== Concept B hero ===== */
.hero-lower{ display:grid; grid-template-columns:minmax(70px,1.25fr) 1.5fr; gap:clamp(20px,5vw,70px); align-items:start; margin-top:clamp(48px,9vh,120px); margin-bottom:clamp(30px,7vh,80px); }
.big-eye{ display:block; }
.big-eye svg{ width:clamp(64px,7vw,112px); height:auto; }
.big-eye svg path{ fill:var(--red); }
.hero-eye .eye-svg{ width:clamp(120px,18vw,260px); height:auto; }
.hero-eye .eye-svg path{ fill:var(--red); }
.eye-svg.no-wink{ animation:none !important; }
.tag-col{ display:flex; flex-direction:column; align-items:flex-start; }
.hero-statement{ font-weight:500; line-height:1.05; letter-spacing:-.022em; font-size:clamp(1.35rem,4.4vw,3rem); max-width:none; margin:0; text-wrap:pretty; }
.ourwork{ display:inline-flex; flex-direction:column; align-items:center; gap:.7em; transform:none; margin-top:clamp(26px,3.5vw,56px); font-family:var(--mono); font-size:.74rem; letter-spacing:.12em; text-transform:none; color:var(--red); position:relative; }
.ourwork .ow-word{ writing-mode:vertical-rl; }
.ourwork::after{ content:""; position:absolute; left:-6px; top:0; width:1.5px; height:0; background:var(--red); transition:height .4s var(--ease); }
.ourwork:hover::after{ height:100%; }
.ow-arrow{ display:block; writing-mode:horizontal-tb; transform:none; line-height:1; }
@media(max-width:760px){
  .hero-lower{ grid-template-columns:1fr; gap:clamp(16px,5vw,28px); margin-top:clamp(40px,8vh,80px); }
  .big-eye svg{ width:72px; }
  .hero-statement{ max-width:22ch; margin-right:0; }
}

/* ===== carbon calculator ===== */
.carbon{ border-top:1px solid var(--line); border-bottom:1px solid var(--line); padding:clamp(30px,4vw,52px) 0; margin-bottom:clamp(34px,4vw,58px); display:grid; gap:clamp(22px,3vw,40px); }
.carbon-intro{ display:flex; flex-direction:column; gap:.7em; }
.carbon-kicker{ display:inline-flex; align-items:center; gap:.7em; color:var(--muted); }
.carbon-kicker .dia{ width:9px; height:9px; }
.carbon-title{ font-weight:600; letter-spacing:-.02em; font-size:clamp(1.45rem,2.6vw,2.3rem); line-height:1.04; max-width:20ch; margin:0; }
.carbon-grid{ display:grid; grid-template-columns:1.1fr 1fr; gap:clamp(26px,4vw,68px); align-items:center; }
.carbon-controls{ display:flex; flex-direction:column; gap:clamp(16px,2.2vw,26px); }
.cc-field{ display:flex; flex-direction:column; gap:.8em; }
.cc-label{ display:flex; justify-content:space-between; align-items:baseline; color:var(--muted); }
.cc-label b{ color:var(--fg); font-weight:400; }
.carbon input[type=range]{ -webkit-appearance:none; appearance:none; width:100%; height:2px; background:var(--line); outline:none; cursor:pointer; }
.carbon input[type=range]::-webkit-slider-thumb{ -webkit-appearance:none; width:17px; height:17px; background:var(--red); cursor:pointer; -webkit-clip-path:polygon(0% 62.2%,62.2% 0%,100% 37.8%,37.8% 100%); clip-path:polygon(0% 62.2%,62.2% 0%,100% 37.8%,37.8% 100%); }
.carbon input[type=range]::-moz-range-thumb{ border:0; width:17px; height:17px; background:var(--red); cursor:pointer; clip-path:polygon(0% 62.2%,62.2% 0%,100% 37.8%,37.8% 100%); }
.cc-toggle{ display:inline-flex; align-items:center; gap:.7em; background:none; border:1px solid var(--line); border-radius:100px; padding:.6em 1.05em; color:var(--fg); font-family:var(--mono); font-size:.72rem; letter-spacing:.1em; text-transform:uppercase; cursor:pointer; align-self:flex-start; transition:border-color .3s; }
.cc-toggle:hover{ border-color:var(--red); }
.cc-switch{ width:30px; height:16px; border-radius:100px; background:var(--line); position:relative; transition:background .3s; flex:none; }
.cc-switch::after{ content:""; position:absolute; top:2px; left:2px; width:12px; height:12px; border-radius:50%; background:var(--bg); transition:transform .3s var(--ease); }
.cc-toggle[aria-pressed="true"] .cc-switch{ background:var(--red); }
.cc-toggle[aria-pressed="true"] .cc-switch::after{ transform:translateX(14px); }
.carbon-result{ border:1px solid var(--line); padding:clamp(22px,2.6vw,34px); display:grid; gap:1.1rem; }
.cc-rating{ display:flex; align-items:center; justify-content:space-between; color:var(--muted); }
.cc-grade{ font-weight:700; font-size:clamp(2.2rem,4vw,3.4rem); line-height:1; color:var(--red); letter-spacing:-.03em; }
.cc-readout{ display:flex; align-items:baseline; gap:.4em; }
.cc-num{ font-weight:700; font-size:clamp(2.8rem,6vw,4.8rem); line-height:.85; letter-spacing:-.03em; }
.cc-unit{ color:var(--muted); }
.cc-meta{ display:flex; gap:2em; flex-wrap:wrap; color:var(--muted); border-top:1px solid var(--line); padding-top:1.1rem; }
.cc-meta b{ color:var(--fg); font-weight:400; }
@media(max-width:760px){ .carbon-grid{ grid-template-columns:1fr; } }

/* reveal */
.contact-red{ background:var(--red); color:var(--cream); margin-top:0; }
.contact-red .seclabel,.contact-red .seclabel span{ color:var(--cream); }
.contact-red .seclabel .dia{ background:var(--cream); }
.contact-red .big .em{ color:var(--cream); }
.contact-red .btn{ border-color:color-mix(in oklab,var(--cream) 45%,transparent); }
.contact-red .btn.primary{ background:var(--cream); border-color:var(--cream); color:var(--red); }
.contact-red .btn.primary .dia{ background:var(--red); }
.contact-red .btn.primary:hover{ background:#fff; }
.contact-red .btn.ghost{ color:var(--cream); }
.contact-red .btn.ghost .dia{ background:var(--cream); }
.contact-red .btn.ghost:hover{ background:var(--cream); color:var(--red); border-color:var(--cream); }
.contact-red .btn.ghost:hover .dia{ background:var(--red); }
.reveal{ opacity:0; transform:translateY(26px); transition:opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in{ opacity:1; transform:none; }
.reveal.d1{ transition-delay:.08s; } .reveal.d2{ transition-delay:.16s; } .reveal.d3{ transition-delay:.24s; }
html[data-motion="off"] .reveal{ opacity:1 !important; transform:none !important; transition:none !important; }
@media (prefers-reduced-motion: reduce){ .reveal{ opacity:1 !important; transform:none !important; } }