/* ════════════════════════════════════════════════════════════════════
   ATPCarbon Product Pages — Cadastral Instrument Commercial v1.0
   Derivado de atpcarbon-v01.css com componentes comerciais.
   Paleta dark + plate, Inter + JetBrains Mono, sem gradientes/glow.
   ════════════════════════════════════════════════════════════════════ */

:root{
  --bg:#080b0c;--surface:#0d1113;--surface-2:#11171a;--fg:#eef3f5;--muted:#9aa8ae;
  --quiet:#657279;--line:#27343a;--line-strong:#3b484e;--accent:#20ef9c;--accent-dark:#087452;
  --plate:#e8e4d7;--plate-2:#ddd8c9;--plate-fg:#11191c;--plate-muted:#4e5a5f;--plate-line:#9ba3a1;
  --warn:#f59e0b;--danger:#ef4444;
  --sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --mono:'JetBrains Mono','SF Mono',ui-monospace,monospace;
  --nav-h:64px;--max:1180px;--gut:32px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--fg);font-family:var(--sans);line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}button{font:inherit}img{display:block;max-width:100%}ul{list-style:none}
::selection{background:var(--accent);color:#03130d}

/* ── Skip / progress / blueprint ── */
.skip-link{position:fixed;top:8px;left:8px;z-index:500;background:var(--plate);color:var(--plate-fg);padding:10px 14px;transform:translateY(-150%)}
.skip-link:focus{transform:none}
.container{width:100%;max-width:var(--max);padding:0 var(--gut);margin:0 auto}
.blueprint{position:fixed;inset:0;z-index:-1;pointer-events:none;background-image:linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);background-size:8.333% 100%;mask-image:linear-gradient(to bottom,#000 0 28%,transparent 58%)}
.progress{position:fixed;left:0;top:0;width:0;height:2px;background:var(--accent);z-index:400}

/* ── Nav ── */
.nav{position:fixed;inset:0 0 auto;height:var(--nav-h);z-index:100;display:flex;align-items:center;gap:20px;padding:0 var(--gut);border-bottom:1px solid var(--line);background:rgba(8,11,12,.93);backdrop-filter:blur(12px)}
.nav-brand{display:flex;align-items:center;gap:8px;flex-shrink:0;font-weight:700;font-size:14px}
.nav-brand .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);display:inline-block}
.nav-brand span{color:var(--muted);font-weight:500}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:auto}
.nav-links a{font-size:13px;color:var(--muted);white-space:nowrap;transition:color .12s}
.nav-links a:hover,.nav-links a:focus-visible,.nav-links a.active{color:var(--fg)}
.nav-links a.active{box-shadow:inset 0 -1px var(--accent);padding-bottom:3px}
.nav-cta{font:12px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--accent);border:1px solid var(--accent);padding:8px 14px;transition:background .12s,color .12s}
.nav-cta:hover{background:var(--accent);color:#05120d}
.nav-burger{display:none;margin-left:auto;border:1px solid var(--line);background:none;color:var(--fg);font:11px var(--mono);letter-spacing:.08em;padding:9px 11px;min-height:44px;cursor:pointer}

/* ── Drawer ── */
.drawer{position:fixed;inset:0;z-index:200;background:var(--bg);padding:80px var(--gut) 30px;display:flex;flex-direction:column;transform:translateX(100%);transition:transform .18s ease-out}
.drawer.open{transform:none}
.drawer>a{font-size:20px;font-weight:600;padding:13px 0;border-bottom:1px solid var(--line)}
.drawer .x{position:absolute;right:var(--gut);top:20px;border:1px solid var(--line);background:none;color:var(--fg);font:11px var(--mono);padding:10px;min-height:44px;cursor:pointer}

/* ── Typography utilities ── */
.kicker,.section-no,.section-type,.item-index,.layer-no,.micro,.status,.metric-label,.claim-label,.step-tag,.phase-tag,.role-tag,.price-tag,.faq-label,footer h3{font-family:var(--mono);letter-spacing:.1em;text-transform:uppercase}
.kicker{font-size:11px;color:var(--muted)}
.mono{font-family:var(--mono)}
.accent{color:var(--accent)}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:12px 20px;border:1px solid var(--accent);font-size:14px;transition:background .12s,color .12s;cursor:pointer}
.btn-service{background:var(--accent);color:#05120d;font-weight:600}
.btn-service:hover,.btn-service:focus-visible{background:transparent;color:var(--fg)}
.btn-primary{background:var(--accent);color:#05120d;font-weight:600}
.btn-primary:hover,.btn-primary:focus-visible{background:transparent;color:var(--fg)}
.btn-secondary{border-color:transparent;text-decoration:underline;text-underline-offset:4px}
.btn-secondary:hover,.btn-secondary:focus-visible{color:var(--accent)}
.btn-ghost{border-color:var(--line);color:var(--muted)}
.btn-ghost:hover,.btn-ghost:focus-visible{border-color:var(--accent);color:var(--fg)}
.hero-actions{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-top:32px}
.service-proof{margin-top:12px;color:var(--quiet);font:9px var(--mono);letter-spacing:.11em}

/* ── Hero ── */
.hero{min-height:680px;padding:calc(var(--nav-h) + 80px) 0 80px;display:flex;align-items:center;border-bottom:1px solid var(--line);position:relative}
.edge-index{position:absolute;right:14px;top:110px;writing-mode:vertical-rl;color:var(--quiet);font:10px var(--mono);letter-spacing:.42em}
.hero .kicker{color:var(--fg)}
.hero h1{max-width:1000px;margin:20px 0 24px;font-size:clamp(42px,6vw,82px);line-height:.95;letter-spacing:-.06em}
.hero-sub{max-width:780px;color:var(--muted);font-size:18px;line-height:1.6}

/* ── Hero facts ── */
.hero-facts{display:flex;gap:36px;margin-top:40px;border-top:1px solid var(--line);padding-top:28px}
.hero-fact{display:flex;align-items:baseline;gap:10px}
.hero-fact strong{font-size:32px;color:var(--accent);font-weight:700}
.hero-fact span{font:10px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}

/* ── Sections ── */
.sec{padding:96px 0;border-top:1px solid var(--line)}
.section-header{display:grid;grid-template-columns:36px auto 1fr auto;align-items:center;gap:18px;margin-bottom:48px}
.section-header h2{font-size:clamp(32px,4.5vw,58px);line-height:1.02;letter-spacing:-.05em}
.section-header i{height:1px;background:currentColor;opacity:.22}
.section-no,.section-type{font-size:11px}
.section-type{white-space:nowrap}

/* ── Evidence plate ── */
.evidence-plate{background:var(--plate);color:var(--plate-fg);border-color:var(--plate-line)}
.evidence-plate .section-header i{background:var(--plate-fg)}
.evidence-plate .kicker{color:var(--plate-muted)}
.claim-boundary{display:grid;grid-template-columns:160px 1fr;gap:25px;margin-top:36px;padding:22px;border:1px solid var(--plate-line)}
.claim-label{font-size:10px;color:var(--accent-dark)}
.claim-boundary p{color:var(--plate-muted)}

/* ── Grids ── */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line)}
.grid-2>*{padding:32px}
.grid-2>*:first-child{border-right:1px solid var(--line)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line)}
.grid-3>*{padding:28px;border-right:1px solid var(--line)}
.grid-3>*:last-child{border-right:0}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line)}
.grid-4>*{padding:24px;border-right:1px solid var(--line)}
.grid-4>*:last-child{border-right:0}

/* ── Step flow ── */
.step-flow{display:grid;grid-template-columns:repeat(6,1fr);margin-top:40px;border:1px solid var(--line)}
.step-flow .step{padding:28px 20px;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:10px}
.step-flow .step:last-child{border-right:0}
.step-tag{font-size:9px;color:var(--accent)}
.step h3{font-size:18px;line-height:1.2}
.step p{color:var(--muted);font-size:13px;line-height:1.6}

/* ── Execution flow ── */
.execution-flow{display:grid;grid-template-columns:repeat(6,1fr);margin-top:36px;border:1px solid var(--line)}
.execution-flow span{padding:14px 10px;border-right:1px solid var(--line);text-align:center;font:10px var(--mono);letter-spacing:.06em;text-transform:uppercase}
.execution-flow span:last-child{border-right:0}
.execution-flow span:not(:last-child)::after{content:'→';float:right;color:var(--accent)}

/* ── Layer stack ── */
.layer-stack{border-top:1px solid var(--line)}
.layer{display:grid;grid-template-columns:70px 250px 1fr;gap:28px;align-items:start;padding:28px 0;border-bottom:1px solid var(--line)}
.layer-no{font-size:10px;color:var(--accent)}
.layer h3{font-size:20px;line-height:1.25}
.layer p{color:var(--muted);line-height:1.7}

/* ── Core rule ── */
.core-rule{margin-top:44px;padding:36px;border:1px solid var(--line-strong);background:var(--surface);color:var(--fg)}
.core-rule .kicker{color:var(--accent)}
.core-rule blockquote{max-width:880px;margin-top:16px;font-size:clamp(26px,4vw,48px);line-height:1.08;letter-spacing:-.04em}
.core-rule p{color:var(--muted);margin-top:20px;max-width:820px}

/* ── Outcome grid ── */
.outcome-grid{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line)}
.outcome-grid article{padding:28px;border-right:1px solid var(--line)}
.outcome-grid article:last-child{border-right:0}
.outcome-grid .item-index{display:block;color:var(--muted);font-size:9px;margin-bottom:16px}
.outcome-grid h3{font-size:22px;line-height:1.2}
.outcome-grid p{color:var(--muted);line-height:1.7;margin-top:14px}

/* ── Capability list ── */
.capability-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 40px;margin-top:44px}
.capability-list li{display:grid;grid-template-columns:34px 1fr;gap:12px;padding:15px 0;border-top:1px solid var(--line);color:var(--muted)}
.capability-list b{color:var(--fg);font:10px var(--mono)}

/* ── Application grid ── */
.application-grid{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--plate-line)}
.application-grid article{padding:36px}
.application-grid article:first-child{border-right:1px solid var(--plate-line)}
.application-grid .status{display:inline-block;font-size:9px;color:var(--accent-dark);margin-bottom:18px}
.application-grid h3{font-size:32px;letter-spacing:-.04em}
.application-grid p{color:var(--plate-muted);line-height:1.75;margin:16px 0}
.application-grid ul{margin:20px 0}
.application-grid li{padding:8px 0;border-top:1px solid var(--plate-line);font-size:13px}
.application-grid a{font:10px var(--mono);letter-spacing:.07em;text-transform:uppercase;color:var(--accent-dark);text-decoration:underline;text-underline-offset:4px}

/* ── Boundary grid ── */
.boundary-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px}
.boundary-grid h3{font-size:clamp(28px,3.8vw,44px);line-height:1.08;letter-spacing:-.04em}
.boundary-grid p{color:var(--muted);line-height:1.75;margin-top:16px}
.boundary-list{border-top:1px solid var(--line)}
.boundary-list li{padding:14px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--muted)}
.boundary-list strong{color:var(--fg)}

/* ── Pricing table ── */
.pricing-table{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:40px;border:1px solid var(--line)}
.price-card{padding:28px 24px;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:12px}
.price-card:last-child{border-right:0}
.price-card .range{font:10px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.price-card .price{font-size:36px;font-weight:700;color:var(--fg)}
.price-card .price small{font-size:14px;color:var(--muted);font-weight:400}
.price-card .unit{font:10px var(--mono);color:var(--quiet);letter-spacing:.06em;text-transform:uppercase}
.price-card ul{margin-top:8px}
.price-card li{padding:7px 0;font-size:13px;color:var(--muted);border-top:1px solid var(--line)}
.price-card .btn{margin-top:auto}

/* ── Regulatory urgency ── */
.urgency-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line)}
.urgency-grid>*{padding:28px;border-right:1px solid var(--line)}
.urgency-grid>*:last-child{border-right:0}
.urgency-grid .label{font:10px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}
.urgency-grid strong{font-size:20px;display:block;margin-bottom:8px}
.urgency-grid p{font-size:13px;color:var(--muted);line-height:1.65}
.urgency-grid .danger{color:var(--danger)}

/* ── Problem / Solution ── */
.ps-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line)}
.ps-grid>*{padding:32px}
.ps-grid>*:first-child{border-right:1px solid var(--line)}
.ps-grid .tag{font:10px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.ps-grid h3{font-size:22px;line-height:1.2;margin-bottom:14px}
.ps-grid p{color:var(--muted);font-size:14px;line-height:1.7}

/* ── Teams ── */
.teams-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border:1px solid var(--line)}
.teams-grid>*{padding:24px 20px;border-right:1px solid var(--line)}
.teams-grid>*:last-child{border-right:0}
.teams-grid .role-tag{font-size:9px;color:var(--accent);margin-bottom:10px;display:block}
.teams-grid h3{font-size:15px;line-height:1.25;margin-bottom:8px}
.teams-grid p{font-size:12px;color:var(--muted);line-height:1.55}

/* ── Deliverables ── */
.deliverables-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line)}
.deliverables-grid>*{padding:28px;border-right:1px solid var(--line)}
.deliverables-grid>*:last-child{border-right:0}
.deliverables-grid .tech-tag{font:9px var(--mono);color:var(--accent);margin-bottom:10px;display:block;letter-spacing:.06em}
.deliverables-grid h3{font-size:20px;line-height:1.2;margin-bottom:10px}
.deliverables-grid p{font-size:13px;color:var(--muted);line-height:1.65}

/* ── FAQ ── */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item button{width:100%;background:none;border:0;color:var(--fg);text-align:left;font-size:15px;font-weight:500;padding:20px 0;display:flex;justify-content:space-between;align-items:center;cursor:pointer;gap:16px}
.faq-item button:hover,.faq-item button:focus-visible{color:var(--accent)}
.faq-item button .chevron{transition:transform .18s;flex-shrink:0;font-size:18px;color:var(--muted)}
.faq-item.open button .chevron{transform:rotate(45deg)}
.faq-item .answer{max-height:0;overflow:hidden;transition:max-height .25s ease-out}
.faq-item.open .answer{max-height:300px}
.faq-item .answer p{padding:0 0 20px;color:var(--muted);font-size:14px;line-height:1.7;max-width:760px}

/* ── Lead form ── */
.form-card{max-width:560px;border:1px solid var(--line);background:var(--surface)}
.form-card.done{display:none}
.form-header{padding:24px 28px;border-bottom:1px solid var(--line)}
.form-header h3{font-size:18px;margin-bottom:6px}
.form-header p{font-size:13px;color:var(--muted)}
.form-body{padding:24px 28px}
.field{margin-bottom:18px}
.field label{display:block;font:10px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}
.field input[type=text],.field input[type=email],.field select{width:100%;background:var(--bg);border:1px solid var(--line);color:var(--fg);font:14px var(--sans);padding:12px 14px;min-height:44px}
.field input:focus,.field select:focus{outline:none;border-color:var(--accent)}
.field input::placeholder{color:var(--quiet)}
.field.invalid input,.field.invalid select{border-color:var(--danger)}
.field .err{font:10px var(--mono);color:var(--danger);display:none;margin-top:4px}
.field.invalid .err{display:block}
.field select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239aa8ae' fill='none' stroke-width='1.5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}
.consent{margin-bottom:18px}
.consent label{font-size:13px;color:var(--muted);display:flex;gap:10px;align-items:flex-start;cursor:pointer}
.consent input[type=checkbox]{flex-shrink:0;margin-top:3px;width:16px;height:16px;accent-color:var(--accent)}
.consent.invalid label{color:var(--danger)}
.form-actions{margin-top:24px}
.form-error-banner{background:var(--danger);color:#fff;font:11px var(--mono);padding:10px 14px;margin-bottom:16px;display:none}
.form-error-banner.show{display:block}
.form-hint{font:10px var(--mono);color:var(--quiet);margin-top:12px;letter-spacing:.04em}

/* ── Success panel ── */
.success-panel{max-width:560px;border:1px solid var(--accent);background:var(--surface);padding:28px;display:none}
.success-panel.show{display:block}
.success-panel .check{width:32px;height:32px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.success-panel .check svg{width:18px;height:18px}
.success-panel h3{font-size:18px;margin-bottom:8px}
.success-panel p{font-size:13px;color:var(--muted);margin-bottom:16px}
.success-panel .download-link{display:inline-flex;align-items:center;gap:8px;font:12px var(--mono);text-transform:uppercase;letter-spacing:.06em;color:var(--accent);border:1px solid var(--accent);padding:10px 16px;margin-bottom:20px}
.success-panel .download-link:hover{background:var(--accent);color:#05120d}
.success-panel .reset-link{font:10px var(--mono);color:var(--quiet);text-decoration:underline;cursor:pointer;margin-top:16px;display:inline-block}
.evaluation-section{margin-top:20px;padding-top:20px;border-top:1px solid var(--line)}
.evaluation-section h4{font-size:13px;margin-bottom:6px}
.evaluation-section p{font-size:12px;color:var(--muted);margin-bottom:12px}
.evaluation-btn{font:11px var(--mono);text-transform:uppercase;letter-spacing:.06em;color:var(--accent);border:1px solid var(--accent);padding:10px 16px;cursor:pointer;background:none}
.evaluation-btn:hover:not(:disabled){background:var(--accent);color:#05120d}
.evaluation-btn:disabled{opacity:.4;cursor:not-allowed}
.evaluation-status{font-size:12px;margin-top:10px;display:none}
.evaluation-status.show{display:block}
.evaluation-status.success{color:var(--accent)}
.evaluation-status.error{color:var(--danger)}

/* ── CTA final ── */
.final-cta{padding:112px 0 128px;border-top:1px solid var(--line);text-align:left}
.final-cta h2{max-width:900px;font-size:clamp(40px,5.5vw,76px);line-height:1;letter-spacing:-.055em;margin:18px 0}
.final-cta>div>p:not(.kicker){max-width:680px;color:var(--muted);font-size:17px}

/* ── Footer ── */
footer{border-top:1px solid var(--line);padding:48px 0 24px;background:var(--surface)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px}
.footer-brand{display:flex;align-items:center;gap:8px;font-weight:700}
.footer-brand .dot{width:8px;height:8px;border-radius:50%;background:var(--accent)}
.footer-grid p{color:var(--muted);margin-top:14px;font-size:13px}
.footer-grid>div:not(:first-child){display:flex;flex-direction:column;gap:8px}
.footer-grid h3{font-size:10px;color:var(--quiet);margin-bottom:6px}
.footer-grid a:not(.footer-brand){font-size:13px;color:var(--muted)}
.footer-grid a:hover,.footer-grid a:focus-visible{color:var(--accent)}
.footer-bottom{margin-top:40px;padding-top:18px;border-top:1px solid var(--line);display:flex;justify-content:space-between;color:var(--quiet);font:10px var(--mono)}

/* ── Focus / motion ── */
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.drawer,.btn,.faq-item .answer,.step,.evaluation-status{transition:none}}

/* ── Responsive ── */
@media(max-width:1120px){
  .nav-links{display:none}
  .nav-burger{display:block}
  .nav>.nav-cta{display:none}
  .edge-index{display:none}
  .step-flow{grid-template-columns:repeat(3,1fr)}
  .step-flow .step:nth-child(3){border-right:0}
  .step-flow .step:nth-child(-n+3){border-bottom:1px solid var(--line)}
  .execution-flow{grid-template-columns:repeat(3,1fr)}
  .execution-flow span:nth-child(3){border-right:0}
  .execution-flow span:nth-child(-n+3){border-bottom:1px solid var(--line)}
  .teams-grid{grid-template-columns:repeat(3,1fr)}
  .teams-grid>*:nth-child(3){border-right:0}
  .teams-grid>*:nth-child(-n+3){border-bottom:1px solid var(--line)}
  .pricing-table{grid-template-columns:repeat(2,1fr)}
  .price-card:nth-child(2){border-right:0}
  .price-card:nth-child(-n+2){border-bottom:1px solid var(--line)}
}

@media(max-width:820px){
  :root{--gut:20px;--nav-h:60px}
  .nav>.nav-cta{display:none}
  .nav-burger{margin-left:auto}
  .hero{min-height:auto;padding:calc(var(--nav-h) + 60px) 0 64px}
  .hero h1{font-size:38px}
  .hero-sub{font-size:16px}
  .hero-facts{flex-wrap:wrap;gap:20px}
  .hero-fact strong{font-size:24px}
  .btn{width:100%}
  .hero-actions{align-items:stretch;flex-direction:column}
  .sec{padding:64px 0}
  .section-header{grid-template-columns:28px 1fr;gap:12px;margin-bottom:32px}
  .section-header h2{font-size:30px}
  .section-header i,.section-type{display:none}
  .grid-2,.grid-3,.grid-4,.outcome-grid,.deliverables-grid,.urgency-grid,.ps-grid,.teams-grid,.pricing-table,.application-grid,.boundary-grid{grid-template-columns:1fr}
  .grid-2>*:first-child,.grid-3>*:first-child,.grid-4>*:first-child,.outcome-grid article,.deliverables-grid>*,.urgency-grid>*,.ps-grid>*:first-child,.teams-grid>*,.price-card,.application-grid article:first-child{border-right:0;border-bottom:1px solid var(--line)}
  .outcome-grid article:last-child,.deliverables-grid>*:last-child,.urgency-grid>*:last-child,.ps-grid>*:last-child,.teams-grid>*:last-child,.price-card:last-child,.application-grid article:last-child{border-bottom:0}
  .step-flow{grid-template-columns:1fr}
  .step-flow .step{border-right:0;border-bottom:1px solid var(--line)}
  .step-flow .step:last-child{border-bottom:0}
  .step-flow .step:nth-child(-n+3){border-bottom:1px solid var(--line)}
  .execution-flow{grid-template-columns:1fr}
  .execution-flow span{border-right:0;border-bottom:1px solid var(--line)}
  .execution-flow span:last-child{border-bottom:0}
  .execution-flow span:not(:last-child)::after{content:'↓'}
  .layer{grid-template-columns:42px 1fr;gap:14px}
  .layer p{grid-column:2}
  .core-rule{padding:24px 20px}
  .capability-list{grid-template-columns:1fr}
  .claim-boundary{grid-template-columns:1fr}
  .final-cta{padding:72px 0 88px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
}

@media(max-width:430px){
  .hero h1{font-size:32px}
  .section-header h2{font-size:26px}
  .hero-facts{flex-direction:column;gap:12px}
}

/* ═══════ ATP LOGO ICON ═══════ */
.logo-icon{
  width:1.2rem;
  height:1.2rem;
  object-fit:contain;
  vertical-align:middle;
  margin-right:.4rem;
  display:inline-block;
}
.footer-brand .logo-icon{
  width:1.4rem;
  height:1.4rem;
}