/* capabilities group A: overview, market fit, product sourcing, OEM/ODM, sample validation.
   Builds on site.css tokens and its shared pieces (.scene, .stepnav, .wide-frame, .two-routes, .ledger, .vgrid, .faq-group). */

.c1 [id^="c1-"]{scroll-margin-top:64px}
.c1-dark{background:var(--asphalt);color:var(--white);padding-block:clamp(64px,8vw,112px)}
.c1-dark .lede,.c1-dark .c1-sub{color:var(--haze-2)}
.c1-dark .note-line{border-top-color:var(--asphalt-3);color:var(--haze)}
.c1-dark .link{color:var(--white)}
.c1-dark .link:hover{color:var(--haze)}
.c1-tint{background:var(--haze-3)}
.c1-sec{padding-block:clamp(64px,8vw,112px)}
.c1-h{font:600 clamp(2.2rem,3.6vw,3.4rem)/1 var(--d);text-transform:uppercase;max-width:20ch;text-wrap:balance}
.c1-sub{margin-top:16px;color:var(--ink-2);max-width:62ch;font-size:1.08rem}
.c1-head{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:20px 56px;align-items:end;margin-bottom:clamp(32px,4vw,52px)}
.c1-head .c1-sub{margin-top:0;justify-self:end}
.c1-cap{font-size:.82rem;color:var(--ink-2);padding-top:10px}
.c1-dark .c1-cap{color:var(--haze)}
.c1-plate{background:#fff}
.c1-plate img{width:100%;height:100%;object-fit:contain}

/* overview: nine capabilities as an image index */
.c1-index{list-style:none;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px 20px}
.c1-index li{display:flex;flex-direction:column}
.c1-index .is-wide{grid-column:span 2}
.c1-index a.c1-index-img{display:block;aspect-ratio:4/3;overflow:hidden;background:var(--asphalt)}
.c1-index .is-wide a.c1-index-img{aspect-ratio:auto;height:100%;max-height:420px;min-height:280px}
.c1-index li:not(.is-wide) a.c1-index-img{max-height:420px}
.c1-index img{width:100%;height:100%;object-fit:cover;transition:transform .9s var(--ease)}
.c1-index .studio img{object-fit:contain;background:#fff;padding:16px}
.c1-index a.c1-index-img:hover img{transform:scale(1.03)}
.c1-index h3{font:600 1.7rem/1.04 var(--d);text-transform:uppercase;margin-top:14px}
.c1-index h3 a{text-decoration:none}
.c1-index h3 a:hover{text-decoration:underline;text-decoration-color:var(--amber);text-decoration-thickness:3px}
.c1-index p{margin-top:6px;color:var(--ink-2);max-width:54ch}
.c1-index .c1-proof{margin-top:8px;font-size:.86rem;font-weight:600;color:var(--ink)}

/* overview: stages track */
.c1-track{list-style:none;padding:0;display:grid;grid-template-columns:repeat(7,minmax(0,1fr));margin-top:44px;position:relative}
.c1-track::before{content:"";position:absolute;left:0;right:0;top:11px;height:3px;background:var(--asphalt-3)}
.c1-track>li{position:relative;padding:40px 14px 0 0}
.c1-track>li::before{content:"";position:absolute;left:0;top:2px;width:21px;height:21px;border-radius:50%;background:var(--asphalt);border:3px solid var(--amber)}
.c1-track h3{font:600 1.35rem/1.05 var(--d);text-transform:uppercase}
.c1-track p{margin-top:8px;font-size:.9rem;color:var(--haze)}
.c1-track ul{list-style:none;padding:0;margin-top:14px;display:grid;gap:6px}
.c1-track ul a{display:block;font-size:.88rem;font-weight:600;padding:8px 10px;background:var(--asphalt-2);border-top:2px solid var(--amber);text-decoration:none;color:var(--white)}
.c1-track ul a:hover{background:var(--asphalt-3)}

/* three parties, each with a photo */
.c1-parties{list-style:none;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.c1-parties figure{margin:0;aspect-ratio:3/2;overflow:hidden;background:var(--asphalt)}
.c1-parties img{width:100%;height:100%;object-fit:cover}
.c1-parties h3{font:600 1.8rem/1 var(--d);text-transform:uppercase;margin-top:18px;padding-bottom:10px;border-bottom:2px solid var(--ink)}
.c1-parties ul{list-style:none;padding:0}
.c1-parties ul li{padding:10px 0;border-bottom:1px solid var(--rule);color:var(--ink-2)}
.c1-parties li.is-us h3{border-bottom-color:var(--amber)}

/* do / do not, under a wide frame */
.c1-dodont{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,64px);margin-top:44px}
.c1-dodont h3{font:600 1.5rem/1 var(--d);text-transform:uppercase;padding-bottom:12px;border-bottom:2px solid var(--amber)}
.c1-dodont .no h3{border-bottom-color:var(--haze)}
.c1-dodont ul{list-style:none;padding:0}
.c1-dodont li{position:relative;padding:13px 0 13px 28px;border-bottom:1px solid var(--asphalt-3);color:var(--haze-2)}
.c1-dodont li::before{content:"";position:absolute;left:2px;top:23px;width:13px;height:2px;background:var(--amber)}
.c1-dodont .no li::before{background:var(--haze);transform:rotate(45deg);box-shadow:none}
.c1-dodont .no li::after{content:"";position:absolute;left:2px;top:23px;width:13px;height:2px;background:var(--haze);transform:rotate(-45deg)}

/* market fit: factor map, sticky photo + grouped factors */
.c1-factors{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(28px,4vw,72px);align-items:start}
.c1-factors>figure{position:sticky;top:72px;margin:0}
.c1-factors>figure img{width:100%;aspect-ratio:4/5;object-fit:cover}
.c1-groups{display:grid;gap:28px;margin-top:32px}
.c1-group h3{font:600 1.4rem/1 var(--d);text-transform:uppercase;padding-bottom:10px;border-bottom:2px solid var(--ink);display:flex;justify-content:space-between;gap:12px;align-items:baseline}
.c1-group h3 span{font:500 .84rem var(--f);text-transform:none;color:var(--ink-2)}
.c1-group dl{display:grid;grid-template-columns:1fr 1fr;gap:0 28px}
.c1-group dl div{padding:12px 0;border-bottom:1px solid var(--rule)}
.c1-group dt{font-weight:600}
.c1-group dd{font-size:.93rem;color:var(--ink-2);margin-top:2px}

/* market fit: speed and power range chart */
.c1-chart{margin-top:40px;--name:150px}
.c1-chart-head,.c1-chart-row{display:grid;grid-template-columns:var(--name) minmax(0,1fr) minmax(0,1fr);gap:0 36px;align-items:center}
.c1-chart-head{font-size:.8rem;font-weight:600;color:var(--haze);padding-bottom:10px}
.c1-chart-head b{font:600 1.1rem/1 var(--d);text-transform:uppercase;color:var(--white);display:block;margin-bottom:4px}
.c1-chart-rows{list-style:none;padding:0;border-top:1px solid var(--asphalt-3)}
.c1-chart-row{min-height:64px;padding:8px 0;border-bottom:1px solid var(--asphalt-3)}
.c1-chart-row>a{font:600 1.2rem/1.05 var(--d);text-transform:uppercase;text-decoration:none;color:var(--white)}
.c1-chart-row>a span{display:block;font:500 .76rem/1.3 var(--f);text-transform:none;color:var(--haze);margin-top:3px}
.c1-chart-row>a:hover{color:var(--amber)}
.c1-bar{position:relative;height:30px;background:linear-gradient(90deg,var(--asphalt-3) 1px,transparent 1px) 0 0/25% 100%}
.c1-bar s{position:absolute;top:9px;height:12px;left:calc(var(--a)/var(--max)*100%);width:max(12px,calc((var(--b) - var(--a))/var(--max)*100%));background:var(--amber);border-radius:1px}
.c1-bar s.is-pt{width:12px;transform:translateX(-6px)}
.c1-bar.pw s{background:var(--haze)}
.c1-bar b{position:absolute;top:50%;transform:translateY(-50%);left:calc(var(--b)/var(--max)*100% + 10px);font:500 .84rem/1 var(--f);white-space:nowrap;color:var(--haze-2);font-variant-numeric:tabular-nums}
.c1-bar b.in{left:auto;right:calc(100% - var(--a)/var(--max)*100% + 10px)}
.c1-axis{display:grid;grid-template-columns:var(--name) minmax(0,1fr) minmax(0,1fr);gap:0 36px;margin-top:8px;font-size:.76rem;color:var(--haze);font-variant-numeric:tabular-nums}
.c1-axis div{display:flex;justify-content:space-between}
.c1-chart-notes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:36px}
.c1-chart-notes p{padding-top:14px;border-top:2px solid var(--amber);color:var(--haze-2);font-size:.94rem}
.c1-chart-notes b{display:block;font:600 1.2rem/1.1 var(--d);text-transform:uppercase;color:var(--white);margin-bottom:6px}

/* market fit: battery capacity vs range bars + options table */
.c1-batt{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(28px,4vw,72px);align-items:start}
.c1-cols{display:flex;align-items:flex-end;gap:14px;height:280px;margin-top:28px;padding-bottom:0;border-bottom:2px solid var(--ink)}
.c1-cols li{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;height:100%;list-style:none}
.c1-cols i{display:block;width:100%;height:calc(var(--v)/40*100%);background:var(--asphalt);position:relative}
.c1-cols li:last-child i{background:var(--amber)}
.c1-cols b{font:600 1.5rem/1 var(--d);margin-bottom:6px;font-variant-numeric:tabular-nums}
.c1-cols-x{display:flex;gap:14px;margin-top:8px}
.c1-cols-x span{flex:1;text-align:center;font-size:.82rem;font-weight:600;color:var(--ink-2);font-variant-numeric:tabular-nums}
.c1-cols-wrap ol{padding:0}
.c1-batt figure{margin:28px 0 0}
.c1-batt figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.c1-tbl{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums;background:#fff}
.c1-tbl th,.c1-tbl td{text-align:left;vertical-align:top;padding:12px 16px;border-bottom:1px solid var(--haze-2);font-size:.94rem}
.c1-tbl thead th{font:600 1.05rem/1.1 var(--d);text-transform:uppercase;border-bottom:2px solid var(--ink);padding-top:16px}
.c1-tbl tbody th{font-weight:600}
.c1-tbl tbody th a{text-decoration-color:var(--amber);text-decoration-thickness:2px}
.c1-tbl td.c1-ns{color:var(--ink-2);font-size:.86rem}
.c1-tbl-scroll{overflow-x:auto;box-shadow:0 24px 48px -36px rgba(31,36,39,.55)}

/* market fit: use and load scenes */
.c1-scenes{list-style:none;padding:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px;margin-top:40px}
.c1-scenes li{display:flex;flex-direction:column;background:var(--asphalt-2)}
.c1-scenes figure{margin:0;aspect-ratio:3/4;overflow:hidden;background:#fff}
.c1-scenes figure img{width:100%;height:100%;object-fit:cover}
.c1-scenes figure.studio img{object-fit:contain;padding:12px}
.c1-scenes div{padding:16px 16px 20px}
.c1-scenes h3{font:600 1.35rem/1.05 var(--d);text-transform:uppercase}
.c1-scenes h3 a{text-decoration:none}
.c1-scenes h3 a:hover{color:var(--amber)}
.c1-scenes .c1-kg{display:block;font:600 2.4rem/1 var(--d);color:var(--amber);margin-top:12px;font-variant-numeric:tabular-nums}
.c1-scenes .c1-kg small{font:500 .8rem var(--f);color:var(--haze);margin-left:4px}
.c1-scenes p{margin-top:8px;font-size:.88rem;color:var(--haze)}

/* market fit: versions within one line */
.c1-versions{list-style:none;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:32px}
.c1-versions figure{margin:0;aspect-ratio:1;background:#fff;overflow:hidden}
.c1-versions figure img{width:100%;height:100%;object-fit:contain;padding:12px}
.c1-versions figure.photo img{object-fit:cover;padding:0}
.c1-versions b{display:block;font:600 1.3rem/1.05 var(--d);text-transform:uppercase;margin-top:12px}
.c1-versions p{font-size:.9rem;color:var(--ink-2);margin-top:4px}

/* category strip */
.c1-cats{list-style:none;padding:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px}
.c1-cats a{display:flex;flex-direction:column;text-decoration:none;background:var(--haze-3);height:100%}
.c1-cats span.c1-cats-img{display:block;aspect-ratio:1;background:#fff;overflow:hidden}
.c1-cats img{width:100%;height:100%;object-fit:contain;padding:12px;transition:transform .8s var(--ease)}
.c1-cats a:hover img{transform:scale(1.04)}
.c1-cats b{display:block;font:600 1.25rem/1.05 var(--d);text-transform:uppercase;padding:14px 14px 0}
.c1-cats small{display:block;padding:6px 14px 16px;font-size:.82rem;color:var(--ink-2)}
.c1-cats a:hover b{text-decoration:underline;text-decoration-color:var(--amber);text-decoration-thickness:3px}

/* sourcing: request card beside a photo */
.c1-request{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(28px,4vw,72px);align-items:center}
.c1-request>figure{margin:0;position:relative}
.c1-request>figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.c1-card{background:#fff;box-shadow:0 30px 60px -34px rgba(31,36,39,.6);border-top:3px solid var(--amber)}
.c1-card-top{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:14px 20px;background:var(--asphalt);color:var(--white)}
.c1-card-top b{font:600 1.25rem/1 var(--d);text-transform:uppercase}
.c1-card-top span{font-size:.8rem;color:var(--haze)}
.c1-card dl{padding:6px 20px 8px}
.c1-card dl div{display:grid;grid-template-columns:130px 1fr;gap:12px;padding:11px 0;border-bottom:1px solid var(--haze-2)}
.c1-card dt{font-size:.84rem;font-weight:600;color:var(--ink-2)}
.c1-card dd{font-size:.94rem}
.c1-card dd.c1-blank{color:var(--ink-2);border-bottom:1px dashed var(--asphalt-3);justify-self:start}
.c1-card p{padding:4px 20px 18px;font-size:.86rem;color:var(--ink-2)}

/* sourcing: lookalike pair */
.c1-pair{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr) minmax(0,1fr);gap:clamp(16px,2.4vw,36px);align-items:center;margin-top:12px}
.c1-pair figure{margin:0}
.c1-pair figure a{display:block;aspect-ratio:1;background:#fff;overflow:hidden}
.c1-pair figure img{width:100%;height:100%;object-fit:contain;padding:16px;transition:transform .8s var(--ease)}
.c1-pair figure a:hover img{transform:scale(1.03)}
.c1-pair figcaption{margin-top:12px}
.c1-pair figcaption b{display:block;font:600 1.8rem/1 var(--d);text-transform:uppercase}
.c1-pair figcaption span{font-size:.86rem;color:var(--ink-2)}
.c1-diff{border-top:2px solid var(--ink)}
.c1-diff div{display:grid;grid-template-columns:1fr auto 1fr;gap:10px;align-items:center;padding:11px 0;border-bottom:1px solid var(--rule);font-size:.92rem;font-variant-numeric:tabular-nums}
.c1-diff div>span:first-child{text-align:right}
.c1-diff dt{font-size:.74rem;font-weight:600;color:var(--ink-2);text-align:center;min-width:92px;text-transform:uppercase;letter-spacing:.03em}
.c1-diff .same{color:var(--ink-2)}
.c1-diff .is-diff span{font-weight:600}
.c1-diff .is-diff dt{color:var(--ink)}
.c1-diff .is-diff span mark{background:rgba(224,154,59,.42);color:var(--ink);padding:0 4px}
.c1-verdicts{list-style:none;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin-top:44px;border-top:1px solid var(--rule)}
.c1-verdicts li{padding:22px 24px 4px 0}
.c1-verdicts li+li{padding-left:24px;border-left:1px solid var(--rule)}
.c1-verdicts b{display:block;font:600 1.5rem/1.05 var(--d);text-transform:uppercase}
.c1-verdicts p{margin-top:8px;color:var(--ink-2)}

/* sourcing: horizontal check with a fork */
.c1-fork{display:grid;grid-template-columns:repeat(3,minmax(0,1fr)) minmax(0,1.4fr);gap:0;margin-top:44px;align-items:stretch}
.c1-fork>div{position:relative;padding:24px 28px 24px 0}
.c1-fork>div:not(:last-child)::after{content:"";position:absolute;right:12px;top:38px;width:14px;height:14px;border-top:3px solid var(--amber);border-right:3px solid var(--amber);transform:rotate(45deg)}
.c1-fork>div+div{padding-left:24px;border-left:1px solid var(--asphalt-3)}
.c1-fork b{display:block;font:600 1.4rem/1.05 var(--d);text-transform:uppercase;max-width:12ch}
.c1-fork p{margin-top:10px;color:var(--haze);font-size:.94rem}
.c1-fork .c1-ends{display:grid;gap:10px;padding-right:0}
.c1-fork .c1-ends p{margin:0;padding:14px 16px;background:var(--asphalt-2);border-top:3px solid var(--amber);color:var(--haze-2)}
.c1-fork .c1-ends p.is-no{border-top-color:var(--haze)}
.c1-fork .c1-ends strong{display:block;font:600 1.15rem/1.1 var(--d);text-transform:uppercase;color:var(--white);margin-bottom:4px}
.c1-fork-fig{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:40px}
.c1-fork-fig img{width:100%;aspect-ratio:4/3;object-fit:cover;background:#fff}
.c1-fork-fig figcaption{grid-column:1/-1;font-size:.82rem;color:var(--haze)}

/* sourcing: merge on a light band */
.c1-merge .merge-result{color:var(--white)}
.c1-merge .merge-result img{width:100%;aspect-ratio:16/10;object-fit:cover;margin-bottom:16px}

/* proof columns under a wide frame */
.c1-proof3{list-style:none;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;counter-reset:pf}
.c1-proof3 li{padding:22px 0 0;border-top:3px solid var(--asphalt)}
.c1-proof3 li.is-amber{border-top-color:var(--amber)}
.c1-proof3 b{display:block;font:600 1.6rem/1.05 var(--d);text-transform:uppercase}
.c1-proof3 p{margin-top:10px;color:var(--ink-2)}

/* OEM: option tiles */
.c1-options{list-style:none;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.c1-options li{display:flex;flex-direction:column;background:var(--haze-3)}
.c1-options figure{margin:0;aspect-ratio:3/2;overflow:hidden;background:#fff}
.c1-options figure img{width:100%;height:100%;object-fit:cover}
.c1-options figure.studio img{object-fit:contain;padding:12px}
.c1-options div{padding:18px 20px 22px}
.c1-options h3{font:600 1.6rem/1 var(--d);text-transform:uppercase}
.c1-options p{margin-top:8px;color:var(--ink-2);font-size:.95rem}
.c1-options .c1-ex{display:block;margin-top:10px;font-size:.86rem;font-weight:600;color:var(--ink)}
.c1-edge{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:20px 48px;margin-top:28px;padding:24px 28px;border:2px dashed var(--asphalt-3)}
.c1-edge h3{font:600 1.5rem/1.05 var(--d);text-transform:uppercase}
.c1-edge p{color:var(--ink-2);max-width:66ch}

/* OEM: colour swatches with studio cut-outs */
.c1-swatches{list-style:none;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:40px}
.c1-swatches figure{margin:0;aspect-ratio:1;background:var(--haze-2);overflow:hidden}
.c1-swatches img{width:100%;height:100%;object-fit:contain;padding:18px;transition:transform .8s var(--ease)}
.c1-swatches li:hover img{transform:scale(1.04)}
.c1-swatches span{display:flex;align-items:center;gap:10px;margin-top:10px;font-size:.9rem;color:var(--haze-2)}
.c1-swatches span i{width:16px;height:16px;border-radius:50%;background:var(--c);box-shadow:0 0 0 2px var(--asphalt-3)}
.c1-colour-row{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(24px,3vw,48px);margin-top:28px;align-items:stretch}
.c1-colour-row figure{margin:0}
.c1-colour-row img{width:100%;height:100%;max-height:520px;object-fit:cover}
.c1-colour-row .chart{background:#fff}
.c1-colour-row .chart img{object-fit:contain;max-height:520px}

/* OEM: evidence matrix */
.c1-matrix tbody th{min-width:180px}
.c1-matrix .c1-thumb{display:flex;align-items:center;gap:14px}
.c1-matrix .c1-thumb img{flex:none;width:72px;height:54px;object-fit:contain;background:#fff;border:1px solid var(--haze-2)}
.c1-matrix .c1-thumb a{font:600 1.25rem/1 var(--d);text-transform:uppercase;text-decoration:none}
.c1-matrix .c1-thumb a:hover{text-decoration:underline;text-decoration-color:var(--amber)}
.c1-matrix .chips{padding-top:0}
.c1-matrix .chips li{background:var(--haze-3);font-size:.84rem;padding:4px 8px}

/* OEM: documents laid on the table */
.c1-docs{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(28px,4vw,72px);align-items:center}
.c1-docs-stage{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
.c1-docs-stage figure{margin:0;background:var(--white);padding:12px 12px 10px;box-shadow:0 30px 50px -28px rgba(0,0,0,.7)}
.c1-docs-stage figure:first-child{transform:rotate(-2deg)}
.c1-docs-stage figure:nth-child(2){transform:rotate(1.6deg) translateY(36px)}
.c1-docs-stage figure:nth-child(3){grid-column:1/-1;width:72%;justify-self:center;transform:rotate(-.8deg);margin-top:12px}
.c1-docs-stage img{width:100%}
.c1-docs-stage figcaption{font-size:.8rem;color:var(--ink-2);padding-top:8px}

.c1-darklist{list-style:none;padding:0;margin-top:28px;border-top:1px solid var(--asphalt-3)}
.c1-darklist li{position:relative;padding:13px 0 13px 28px;border-bottom:1px solid var(--asphalt-3);color:var(--haze-2)}
.c1-darklist li::before{content:"";position:absolute;left:2px;top:23px;width:13px;height:2px;background:var(--amber)}

/* OEM: version loop */
.c1-loop{list-style:none;padding:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0;margin-top:44px;position:relative;border-top:2px solid var(--ink)}
.c1-loop li{position:relative;padding:22px 20px 22px 0}
.c1-loop li+li{padding-left:20px;border-left:1px solid var(--rule)}
.c1-loop b{display:block;font:600 1.45rem/1.05 var(--d);text-transform:uppercase}
.c1-loop p{margin-top:8px;color:var(--ink-2);font-size:.94rem}
.c1-loop li:last-child{background:var(--haze-3);padding-right:20px}
.c1-return{position:relative;margin-top:8px;height:46px;border:3px solid var(--amber);border-top:0;margin-inline:10% 10%}
.c1-return::before{content:"";position:absolute;left:-9px;top:-4px;width:14px;height:14px;border-top:3px solid var(--amber);border-left:3px solid var(--amber);transform:rotate(45deg)}
.c1-return span{position:absolute;left:50%;bottom:-13px;transform:translateX(-50%);background:var(--haze-2);padding:0 14px;font-size:.88rem;font-weight:600;white-space:nowrap}

/* dark terms table */
.c1-terms{width:100%;border-collapse:collapse;margin-top:12px}
.c1-terms th,.c1-terms td{text-align:left;vertical-align:top;padding:16px 20px 16px 0;border-bottom:1px solid var(--asphalt-3)}
.c1-terms thead th{font:600 1.1rem/1 var(--d);text-transform:uppercase;border-bottom:2px solid var(--amber);color:var(--white)}
.c1-terms tbody th{font:600 1.35rem/1.05 var(--d);text-transform:uppercase;width:22%}
.c1-terms td{color:var(--haze-2)}
.c1-terms td:last-child{color:var(--haze)}
.c1-wide-dark{background:var(--asphalt);color:var(--white);padding-bottom:clamp(56px,7vw,96px)}

/* sample: what a sample answers */
.c1-answers{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(28px,4vw,72px);align-items:center}
.c1-answers>figure{margin:0}
.c1-answers>figure img{width:100%;aspect-ratio:4/5;object-fit:cover}
.c1-ab{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:32px}
.c1-ab h3{font:600 1.35rem/1.05 var(--d);text-transform:uppercase;padding-bottom:10px;border-bottom:3px solid var(--amber)}
.c1-ab .later h3{border-bottom-color:var(--asphalt-3)}
.c1-ab ul{list-style:none;padding:0}
.c1-ab li{padding:12px 0;border-bottom:1px solid var(--rule)}
.c1-ab li b{display:block;font-weight:600}
.c1-ab li span{font-size:.92rem;color:var(--ink-2)}

/* sample: promise vs proof statement */
.c1-statement{position:relative;background:var(--asphalt);color:var(--white);overflow:hidden}
.c1-statement>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.3}
.c1-statement::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(31,36,39,.95) 0,rgba(31,36,39,.75) 60%,rgba(31,36,39,.55) 100%)}
.c1-statement .wrap{position:relative;z-index:1;padding-block:clamp(72px,9vw,128px)}
.c1-statement blockquote{font:600 clamp(2rem,3.6vw,3.4rem)/1.04 var(--d);text-transform:uppercase;max-width:24ch;text-wrap:balance}
.c1-statement blockquote+p{margin-top:18px;color:var(--haze-2);max-width:60ch}
.c1-scale{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,64px);margin-top:48px}
.c1-scale h3{font:600 1.3rem/1 var(--d);text-transform:uppercase;color:var(--haze);padding-bottom:10px;border-bottom:1px solid var(--asphalt-3)}
.c1-scale .rely h3{color:var(--white);border-bottom:3px solid var(--amber)}
.c1-scale ul{list-style:none;padding:0}
.c1-scale li{padding:13px 0;border-bottom:1px solid var(--asphalt-3);color:var(--haze-2)}
.c1-scale .offer li{color:var(--haze);text-decoration:line-through;text-decoration-color:rgba(199,209,214,.5)}
.c1-scale .offer li span{text-decoration:none;display:inline-block}

/* sample: seven steps in a grid */
.c1-steps{list-style:none;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:st}
.c1-steps>li{counter-increment:st;display:flex;flex-direction:column;background:var(--haze-3)}
.c1-steps figure{margin:0;aspect-ratio:4/3;overflow:hidden;background:#fff}
.c1-steps figure img{width:100%;height:100%;object-fit:cover}
.c1-steps figure.studio img{object-fit:contain;padding:10px}
.c1-steps div{padding:16px 18px 20px}
.c1-steps h3{font:600 1.3rem/1.05 var(--d);text-transform:uppercase;display:flex;gap:10px;align-items:baseline}
.c1-steps h3::before{content:counter(st);font:700 2rem/.8 var(--d);color:var(--amber)}
.c1-steps p{margin-top:8px;font-size:.92rem;color:var(--ink-2)}
.c1-steps .c1-decide{background:var(--asphalt);color:var(--white);justify-content:flex-end;padding:24px}
.c1-steps .c1-decide b{font:600 1.8rem/1.02 var(--d);text-transform:uppercase}
.c1-steps .c1-decide p{color:var(--haze-2);margin-top:10px}
.c1-steps .c1-decide a{margin-top:16px;color:var(--white)}

/* sample: factory check frames */
.c1-inspect{list-style:none;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:40px}
.c1-inspect figure{margin:0;aspect-ratio:1;overflow:hidden;position:relative;background:#1f2427}
.c1-inspect img{width:100%;height:100%;object-fit:cover}
.c1-inspect figure::after{content:"";position:absolute;inset:14px;border:2px solid rgba(242,242,238,.55);pointer-events:none}
.c1-inspect h3{font:600 1.35rem/1.05 var(--d);text-transform:uppercase;margin-top:14px}
.c1-inspect p{margin-top:6px;color:var(--haze);font-size:.92rem}

/* sample: offset image pair */
.c1-offset{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:clamp(28px,4vw,72px);align-items:center}
.c1-offset-imgs{position:relative;display:grid;grid-template-columns:repeat(6,1fr);grid-template-rows:auto auto}
.c1-offset-imgs figure{margin:0}
.c1-offset-imgs figure:first-child{grid-column:1/6;grid-row:1}
.c1-offset-imgs>p{grid-row:3}
.c1-offset-imgs figure:nth-of-type(2){grid-column:3/7;grid-row:2;margin-top:-18%;box-shadow:0 30px 50px -30px rgba(31,36,39,.7);border:8px solid var(--haze-2)}
.c1-offset-imgs img{width:100%;aspect-ratio:4/3;object-fit:cover}
.c1-offset-imgs figcaption{font-size:.8rem;color:var(--ink-2);padding-top:8px}
.c1-offset .ticks{margin-top:24px}

/* sample: three branches after the test */
.c1-branches{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:84px;position:relative}
.c1-branches::before{content:"";position:absolute;left:16.6%;right:16.6%;top:-28px;height:28px;border:3px solid var(--asphalt-3);border-bottom:0}
.c1-branches::after{content:"";position:absolute;left:50%;top:-56px;width:3px;height:28px;background:var(--asphalt-3)}
.c1-branches>div{padding:22px 24px 24px;background:var(--asphalt-2);border-top:3px solid var(--amber)}
.c1-branches>div.is-stop{border-top-color:var(--haze)}
.c1-branches b{display:block;font:600 1.7rem/1 var(--d);text-transform:uppercase}
.c1-branches p{margin-top:10px;color:var(--haze-2);font-size:.95rem}

/* sample: product reference rows */
.c1-refs .spec-row{grid-template-columns:minmax(200px,360px) minmax(0,1fr)}
.c1-refs .spec-list{grid-template-columns:repeat(4,minmax(0,1fr))}
.c1-refs .spec-list dd.c1-ask{color:var(--ink-2);font-size:.88rem}
.c1-refs p.c1-row-note{margin-top:14px;font-size:.92rem;color:var(--ink-2);max-width:66ch}

/* shared FAQ split on a tint band */
.c1-faq .split{padding-block:0}

@media (max-width:1100px){
  .c1-scenes{grid-template-columns:repeat(3,minmax(0,1fr))}
  .c1-cats{grid-template-columns:repeat(3,minmax(0,1fr))}
  .c1-track{grid-template-columns:repeat(4,minmax(0,1fr));row-gap:36px}
  .c1-track::before{display:none}
  .c1-steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .c1-loop{grid-template-columns:repeat(3,minmax(0,1fr))}
  .c1-loop li:nth-child(4){border-left:0;padding-left:0}
  .c1-return{display:none}
  .c1-fork{grid-template-columns:1fr 1fr}
  .c1-fork>div:nth-child(2)::after{display:none}
  .c1-fork>div:nth-child(3){border-left:0;padding-left:0}
}
@media (max-width:1000px){
  .c1-head,.c1-factors,.c1-batt,.c1-request,.c1-docs,.c1-answers,.c1-offset{grid-template-columns:minmax(0,1fr)}
  .c1-head .c1-sub{justify-self:start}
  .c1-factors>figure{position:relative;top:auto}
  .c1-factors>figure img{aspect-ratio:16/9}
  .c1-answers>figure img{aspect-ratio:16/10}
  .c1-pair{grid-template-columns:1fr 1fr}
  .c1-pair .c1-diff{grid-column:1/-1;grid-row:2}
  .c1-chart-notes{grid-template-columns:1fr}
  .c1-index{grid-template-columns:repeat(2,minmax(0,1fr))}
  .c1-index .is-wide{grid-column:span 2}
  .c1-index li:last-child{grid-column:span 2}
  .c1-parties{grid-template-columns:1fr}
  .c1-parties figure{aspect-ratio:16/9}
  .c1-colour-row{grid-template-columns:1fr}
  .c1-edge{grid-template-columns:1fr}
  .c1-docs-stage{max-width:640px}
  .c1-chart{--name:120px}
  .c1-chart-head,.c1-chart-row,.c1-axis{gap:0 20px}
}
@media (max-width:760px){
  .c1-dodont,.c1-ab,.c1-scale,.c1-branches,.c1-verdicts,.c1-proof3,.c1-fork{grid-template-columns:1fr}
  .c1-branches::before,.c1-branches::after{display:none}
  .c1-branches{margin-top:32px}
  .c1-verdicts li+li{border-left:0;padding-left:0;border-top:1px solid var(--rule)}
  .c1-fork>div{padding:18px 0;border-left:0!important;padding-left:0!important;border-bottom:1px solid var(--asphalt-3)}
  .c1-fork>div::after{display:none}
  .c1-fork-fig{grid-template-columns:1fr 1fr}
  .c1-group dl{grid-template-columns:1fr}
  .c1-swatches{grid-template-columns:1fr 1fr}
  .c1-options{grid-template-columns:1fr 1fr}
  .c1-inspect{grid-template-columns:1fr 1fr}
  .c1-versions{grid-template-columns:1fr 1fr}
  .c1-refs .spec-row{grid-template-columns:1fr}
  .c1-refs .spec-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  /* chart stacks: name above, two bars below */
  .c1-chart-head{grid-template-columns:1fr 1fr;gap:16px}
  .c1-chart-head>span:first-child{display:none}
  .c1-chart-row{grid-template-columns:1fr;gap:6px;padding:14px 0}
  .c1-bar{margin-right:84px}
  .c1-axis{display:none}
}
@media (max-width:600px){
  .c1-index,.c1-options,.c1-scenes,.c1-steps,.c1-loop{grid-template-columns:1fr}
  .c1-index .is-wide,.c1-index li:last-child{grid-column:auto}
  .c1-index .is-wide a.c1-index-img{height:auto;aspect-ratio:4/3;min-height:0}
  .c1-loop li+li{border-left:0;padding-left:0;border-top:1px solid var(--rule)}
  .c1-loop li:last-child{padding:20px}
  .c1-track{grid-template-columns:1fr 1fr}
  .c1-cats{grid-template-columns:1fr 1fr}
  .c1-pair{grid-template-columns:1fr 1fr;gap:12px}
  .c1-pair figcaption b{font-size:1.3rem}
  .c1-diff div{grid-template-columns:1fr;gap:2px;text-align:left}
  .c1-diff div>span:first-child{text-align:left}
  .c1-diff dt{text-align:left}
  .c1-card dl div{grid-template-columns:1fr;gap:2px}
  .c1-docs-stage{grid-template-columns:1fr}
  .c1-docs-stage figure:nth-child(2){transform:rotate(1.2deg)}
  .c1-docs-stage figure:nth-child(3){width:100%}
  .c1-offset-imgs figure:nth-of-type(2){margin-top:-10%}
  .c1-terms thead{display:none}
  .c1-terms tr{display:block;padding:14px 0;border-bottom:1px solid var(--asphalt-3)}
  .c1-terms th,.c1-terms td{display:block;padding:4px 0;border:0;width:auto}
  .c1-cols{height:220px;gap:8px}
  .c1-cols-x{gap:8px}
  .c1-cols b{font-size:1.15rem}
}
.c1-merge .merge-item span{flex:1}
@media (max-width:760px){
  .c1-tbl{min-width:600px}
  .c1-tbl.c1-matrix{min-width:680px}
  .c1-bar{margin-right:100px}
}
@media (max-width:600px){
  .c1-scenes figure,.c1-steps figure,.c1-options figure{aspect-ratio:16/10}
}