.page-certificates { background: #fff; }
.page-certificates main { overflow: clip; }
.page-certificates h1,
.page-certificates h2,
.page-certificates h3,
.page-certificates p { margin-top: 0; }

.cert-hero { position: relative; padding: 104px 0 96px; color: var(--paper); background: var(--navy-950); overflow: hidden; }
.cert-hero::before { content: ""; position: absolute; inset: 0; opacity: .2; background: linear-gradient(115deg, transparent 0 48%, rgba(255,255,255,.08) 48.2% 48.5%, transparent 48.7%), radial-gradient(circle at 86% 20%, rgba(255,99,19,.34), transparent 25%); }
.cert-hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(340px, .8fr); align-items: center; gap: 84px; }
.cert-hero-copy { max-width: 760px; }
.cert-hero h1 { max-width: 760px; margin-bottom: 28px; color: var(--paper); font-size: clamp(48px, 5.3vw, 76px); line-height: 1.02; letter-spacing: -.045em; }
.cert-hero .hero-lead { max-width: 710px; margin-bottom: 28px; color: var(--copy-dark); font-size: 20px; line-height: 1.65; }
.cert-updated { color: var(--orange-300); font-size: 13px; font-weight: 700; letter-spacing: .04em; }
.cert-hero-diagram { position: relative; height: 390px; perspective: 1000px; }
.cert-file { position: absolute; width: 315px; height: 356px; padding: 28px; border: 1px solid rgba(255,255,255,.22); border-radius: 18px; box-shadow: 0 30px 70px rgba(0,0,0,.25); }
.cert-file > span { display: block; margin-bottom: 112px; font-size: 12px; font-weight: 700; letter-spacing: .12em; }
.cert-file > b { font-size: 17px; letter-spacing: .08em; }
.cert-file-back { top: 5px; right: 0; color: #7e91a2; background: #0c365c; transform: rotate(7deg); }
.cert-file-middle { top: 16px; right: 34px; color: var(--navy-950); background: var(--blue-100); transform: rotate(1deg); }
.cert-file-front { top: 30px; right: 70px; color: var(--navy-950); background: var(--paper); transform: rotate(-5deg); }
.cert-file-front > span { margin-bottom: 44px; color: var(--orange-600); }
.cert-file-front > strong { display: block; margin-bottom: 45px; font-size: 30px; line-height: 1.05; letter-spacing: -.035em; }
.cert-file-front > div { display: grid; grid-template-columns: 38px 1fr; align-items: center; gap: 12px; margin-top: 13px; }
.cert-file-front i { height: 2px; background: var(--orange-500); }
.cert-file-front small { font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }

.cert-section-nav { position: sticky; top: 75px; z-index: 60; color: var(--copy); background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); backdrop-filter: blur(16px); }
.cert-section-nav-inner { min-height: 62px; display: flex; align-items: center; gap: 25px; white-space: nowrap; overflow-x: auto; scrollbar-width: none; }
.cert-section-nav-inner::-webkit-scrollbar { display: none; }
.cert-section-nav span { color: var(--navy-950); font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.cert-section-nav a { padding: 21px 0 18px; color: var(--copy); border-bottom: 3px solid transparent; font-size: 13px; font-weight: 700; text-decoration: none; }
.cert-section-nav a:hover { color: var(--orange-600); border-color: var(--orange-500); }

.cert-intro { padding: 82px 0; background: var(--blue-50); border-bottom: 1px solid var(--line); }
.cert-intro-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 95px; align-items: start; }
.cert-intro h2 { max-width: 520px; margin-bottom: 0; font-size: 42px; line-height: 1.12; letter-spacing: -.035em; }
.cert-intro-copy > p { max-width: 720px; margin-bottom: 34px; color: var(--copy); font-size: 18px; line-height: 1.75; }
.cert-principles { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.cert-principles span { padding: 22px 14px 0 0; color: var(--ink); font-size: 13px; font-weight: 700; }
.cert-principles b { display: block; margin-bottom: 9px; color: var(--orange-600); font-size: 11px; letter-spacing: .1em; }

.cert-standard { scroll-margin-top: 138px; padding: 108px 0; }
.cert-standard-grid { display: grid; grid-template-columns: 140px minmax(0, 1fr); gap: 55px; }
.cert-standard-index { padding-top: 6px; border-top: 2px solid currentColor; }
.cert-standard-index > span { display: block; margin: 16px 0 28px; color: var(--orange-600); font-size: 56px; font-weight: 600; line-height: 1; letter-spacing: -.05em; }
.cert-standard-index p { font-size: 11px; font-weight: 700; line-height: 1.6; letter-spacing: .12em; }
.cert-standard-heading { display: grid; grid-template-columns: 1fr .82fr; gap: 55px; align-items: end; margin-bottom: 52px; padding-bottom: 40px; border-bottom: 1px solid var(--line); }
.cert-standard-heading h2 { margin-bottom: 0; font-size: 48px; line-height: 1.08; letter-spacing: -.04em; }
.cert-standard-heading > p { margin-bottom: 0; color: var(--copy); font-size: 17px; line-height: 1.7; }
.cert-fact-strip { display: grid; grid-template-columns: repeat(4, 1fr); margin-bottom: 54px; background: var(--navy-950); border-radius: var(--radius-card); overflow: hidden; }
.cert-fact-strip span { min-height: 98px; padding: 23px 24px; border-right: 1px solid var(--line-dark); }
.cert-fact-strip span:last-child { border: 0; }
.cert-fact-strip small { display: block; margin-bottom: 8px; color: var(--copy-dark); font-size: 11px; letter-spacing: .06em; }
.cert-fact-strip b { color: var(--paper); font-size: 15px; }
.cert-method-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 60px; }
.cert-method h3, .cert-result h3, .crib-procedure h3 { margin-bottom: 28px; font-size: 22px; }
.cert-steps { margin: 0; padding: 0; list-style: none; }
.cert-steps li { display: grid; grid-template-columns: 40px 1fr; gap: 20px; padding: 0 0 28px; }
.cert-steps li > span { width: 40px; height: 40px; display: grid; place-items: center; color: var(--orange-600); background: var(--orange-100); border-radius: 50%; font-size: 11px; font-weight: 700; }
.cert-steps p { margin-bottom: 0; color: var(--copy); font-size: 15px; line-height: 1.65; }
.cert-steps strong { display: block; margin-bottom: 4px; color: var(--ink); font-size: 16px; }
.cert-result { padding: 34px; background: var(--blue-100); border: 1px solid var(--line); border-radius: var(--radius-card); }
.cert-result ul { display: grid; gap: 19px; margin: 0 0 28px; padding: 0; list-style: none; }
.cert-result li { display: grid; grid-template-columns: 28px 1fr; gap: 12px; color: var(--ink); font-size: 14px; line-height: 1.6; }
.cert-result li span { width: 27px; height: 27px; display: grid; place-items: center; color: var(--paper); background: var(--success); border-radius: 50%; }
.cert-note { margin: 0; padding-top: 22px; color: var(--copy); border-top: 1px solid var(--line); font-size: 13px; line-height: 1.65; }
.cert-details { margin-top: 36px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.cert-details summary { padding: 22px 0; display: flex; justify-content: space-between; color: var(--ink); font-size: 14px; font-weight: 700; cursor: pointer; list-style: none; }
.cert-details summary::-webkit-details-marker { display: none; }
.cert-details summary span { color: var(--orange-600); font-size: 20px; }
.cert-details p { max-width: 880px; padding-bottom: 22px; color: var(--copy); line-height: 1.7; }

.cert-standard-navy { color: var(--paper); background: var(--navy-950); }
.cert-standard-navy .cert-standard-index > span { color: var(--orange-300); }
.cert-standard-navy .cert-standard-heading { border-color: var(--line-dark); }
.cert-standard-navy .cert-standard-heading h2,
.cert-standard-navy .cert-standard-heading > p { color: var(--paper); }
.cert-standard-navy .cert-standard-heading > p { color: var(--copy-dark); }
.cert-comparison { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.cert-comparison > article { padding: 36px; background: var(--navy-900); border: 1px solid var(--line-dark); border-radius: var(--radius-card); }
.cert-test-label { display: flex; gap: 16px; align-items: center; margin-bottom: 30px; }
.cert-test-label > span { width: 48px; height: 48px; display: grid; place-items: center; color: var(--navy-950); background: var(--orange-300); border-radius: 50%; font-size: 19px; font-weight: 700; }
.cert-test-label p { margin-bottom: 0; }
.cert-test-label small { display: block; margin-bottom: 4px; color: var(--orange-300); font-size: 10px; font-weight: 700; letter-spacing: .08em; }
.cert-test-label strong { color: var(--paper); font-size: 19px; }
.cert-comparison ol { min-height: 228px; margin: 0 0 28px; padding-left: 22px; color: var(--copy-dark); }
.cert-comparison li { margin-bottom: 15px; padding-left: 5px; font-size: 14px; line-height: 1.65; }
.cert-comparison li::marker { color: var(--orange-300); font-weight: 700; }
.cert-pass { padding-top: 24px; border-top: 1px solid var(--line-dark); }
.cert-pass b { color: var(--paper); font-size: 13px; }
.cert-pass p { margin: 8px 0 0; color: var(--copy-dark); font-size: 13px; line-height: 1.65; }
.cert-wide-note { margin: 24px 0 0; padding: 23px 28px; color: var(--copy-dark); background: rgba(255,255,255,.04); border-left: 3px solid var(--orange-500); font-size: 14px; line-height: 1.65; }

.cert-standard-paper { background: var(--blue-50); }
.crib-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 70px; align-items: center; margin-bottom: 58px; }
.crib-visual { min-height: 420px; padding: 60px 40px 35px; display: grid; align-content: center; justify-items: center; background: var(--navy-950); border-radius: var(--radius-card); }
.crib-rig { width: 180px; height: 145px; position: relative; display: grid; grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(2, 1fr); gap: 8px; transform: rotate(2deg); }
.crib-rig i { background: #d7a86e; border: 3px solid #b47938; box-shadow: inset 0 0 0 2px rgba(255,255,255,.18); }
.crib-flame { width: 65px; height: 92px; margin-top: -25px; background: radial-gradient(ellipse at bottom, #fff 0 8%, #ffb234 10% 38%, #ff6313 40% 63%, transparent 65%); filter: drop-shadow(0 0 20px rgba(255,99,19,.7)); }
.crib-visual small { max-width: 260px; margin-top: 28px; color: var(--copy-dark); text-align: center; line-height: 1.5; }
.cert-criteria-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cert-criteria-grid article { padding: 30px; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-card); }
.cert-criteria-grid article > span { color: var(--orange-600); font-size: 10px; font-weight: 700; letter-spacing: .12em; }
.cert-criteria-grid h3 { margin: 12px 0 20px; font-size: 18px; }
.cert-criteria-grid ul { margin: 0; padding-left: 18px; color: var(--copy); }
.cert-criteria-grid li { margin-bottom: 12px; font-size: 13px; line-height: 1.6; }

.cert-standard-orange { color: var(--paper); background: var(--navy-800); }
.cert-standard-orange .cert-standard-index { border-color: var(--orange-300); }
.cert-standard-orange .cert-standard-index > span { color: var(--orange-300); }
.cert-standard-orange .cert-standard-heading { border-color: var(--line-dark); }
.cert-standard-orange .cert-standard-heading h2 { color: var(--paper); }
.cert-standard-orange .cert-standard-heading > p { color: var(--copy-dark); }
.tent-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line-dark); border: 1px solid var(--line-dark); border-radius: var(--radius-card); overflow: hidden; }
.tent-grid article { min-height: 250px; padding: 29px; background: var(--navy-900); }
.tent-grid span { display: block; color: var(--orange-300); font-size: 12px; font-weight: 700; }
.tent-grid h3 { margin: 55px 0 14px; color: var(--paper); font-size: 18px; }
.tent-grid p { color: var(--copy-dark); font-size: 13px; line-height: 1.65; }
.cert-weather-note { margin-top: 24px; padding: 25px 30px; display: grid; grid-template-columns: 190px 1fr; gap: 30px; background: var(--navy-950); border: 1px solid var(--line-dark); border-radius: var(--radius-content); }
.cert-weather-note strong { color: var(--orange-300); }
.cert-weather-note p { margin: 0; color: var(--copy-dark); font-size: 14px; line-height: 1.65; }

.euro-code { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; align-items: center; gap: 22px; margin-bottom: 44px; padding: 35px; background: var(--navy-950); border-radius: var(--radius-card); }
.euro-code > div { display: grid; grid-template-columns: auto 1fr; column-gap: 16px; align-items: center; }
.euro-code strong { grid-row: 1 / 3; color: var(--orange-300); font-size: 55px; letter-spacing: -.06em; }
.euro-code span { color: var(--paper); font-size: 13px; font-weight: 700; }
.euro-code small { color: var(--copy-dark); font-size: 11px; }
.euro-code > i { color: var(--copy-dark); font-size: 27px; font-style: normal; }
.euro-tests { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 38px; }
.euro-tests article { padding: 28px; display: grid; grid-template-columns: 72px 1fr; gap: 24px; background: var(--blue-100); border: 1px solid var(--line); border-radius: var(--radius-content); }
.euro-tests article > span { width: 68px; height: 68px; display: grid; place-items: center; color: var(--paper); background: var(--navy-900); border-radius: 50%; font-size: 13px; font-weight: 700; }
.euro-tests small { color: var(--orange-600); font-size: 10px; font-weight: 700; }
.euro-tests h3 { margin: 5px 0 9px; font-size: 17px; }
.euro-tests p { margin: 0; color: var(--copy); font-size: 13px; line-height: 1.6; }
.euro-scale { display: grid; grid-template-columns: repeat(7, 1fr); margin-bottom: 28px; border-radius: 10px; overflow: hidden; }
.euro-scale > span { min-height: 78px; padding: 18px 14px; color: var(--paper); background: #d05d35; border-right: 1px solid rgba(255,255,255,.35); font-size: 20px; font-weight: 700; }
.euro-scale .class-a { background: var(--success); }
.euro-scale .class-b { background: #4f8b55; }
.euro-scale > span:nth-child(4) { background: #7d9451; }.euro-scale > span:nth-child(5) { color: var(--ink); background: #d7a73e; }.euro-scale > span:nth-child(6) { color: var(--ink); background: #ee8d36; }
.euro-scale small { display: block; margin-top: 7px; font-size: 8px; font-weight: 600; line-height: 1.3; }
.cert-scope-warning { padding: 23px 27px; display: grid; grid-template-columns: 32px 1fr; gap: 18px; align-items: start; background: var(--orange-100); border: 1px solid #ffd4c1; border-radius: var(--radius-content); }
.cert-scope-warning > span { width: 30px; height: 30px; display: grid; place-items: center; color: var(--paper); background: var(--orange-600); border-radius: 50%; font-weight: 700; }
.cert-scope-warning p { margin: 2px 0 0; color: var(--copy); font-size: 13px; line-height: 1.65; }

.cert-documents { scroll-margin-top: 138px; padding: 108px 0; color: var(--paper); background: var(--navy-900); }
.cert-documents-heading { display: grid; grid-template-columns: 1fr .8fr; gap: 70px; align-items: end; margin-bottom: 48px; }
.cert-documents-heading h2 { margin-bottom: 0; color: var(--paper); font-size: 46px; line-height: 1.1; letter-spacing: -.04em; }
.cert-documents-heading > p { margin-bottom: 0; color: var(--copy-dark); line-height: 1.7; }
.cert-document-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line-dark); border: 1px solid var(--line-dark); border-radius: var(--radius-card); overflow: hidden; }
.cert-document-grid article { min-height: 315px; padding: 30px; display: flex; flex-direction: column; background: var(--navy-950); }
.cert-document-grid article > span { color: var(--orange-300); font-size: 11px; font-weight: 700; }
.cert-document-grid h3 { margin: 54px 0 16px; color: var(--paper); font-size: 18px; line-height: 1.3; }
.cert-document-grid p { color: var(--copy-dark); font-size: 13px; line-height: 1.65; }
.cert-document-grid small { margin-top: auto; padding-top: 20px; color: var(--orange-300); border-top: 1px solid var(--line-dark); font-weight: 700; }

.cert-glossary { scroll-margin-top: 138px; padding: 105px 0; background: var(--blue-50); }
.cert-glossary-grid { display: grid; grid-template-columns: .55fr 1.45fr; gap: 90px; }
.cert-glossary-heading { position: sticky; top: 165px; align-self: start; }
.cert-glossary-heading h2 { margin-bottom: 18px; font-size: 42px; line-height: 1.12; letter-spacing: -.035em; }
.cert-glossary-heading > p:last-child { color: var(--copy); }
.cert-glossary-list { margin: 0; display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
.cert-glossary-list > div { min-height: 125px; padding: 25px 28px 24px 0; border-bottom: 1px solid var(--line); }
.cert-glossary-list > div:nth-child(odd) { border-right: 1px solid var(--line); }
.cert-glossary-list > div:nth-child(even) { padding-left: 28px; }
.cert-glossary-list dt { margin-bottom: 9px; color: var(--ink); font-size: 15px; font-weight: 700; }
.cert-glossary-list dd { margin: 0; color: var(--copy); font-size: 13px; line-height: 1.65; }

.cert-references { padding: 76px 0 92px; background: var(--paper); }
.cert-references-grid { display: grid; grid-template-columns: .6fr 1.4fr; gap: 90px; }
.cert-references h2 { font-size: 36px; }
.cert-references p { max-width: 780px; color: var(--copy); line-height: 1.7; }
.cert-references ul { display: grid; gap: 8px; margin: 25px 0 0; padding: 0; list-style: none; }
.cert-references a { color: var(--navy-900); font-size: 13px; font-weight: 700; text-decoration-thickness: 1px; text-underline-offset: 4px; }

@media (max-width: 1000px) {
  .cert-hero-grid { grid-template-columns: 1fr .65fr; gap: 35px; }
  .cert-file { width: 260px; height: 320px; }
  .cert-file-front { right: 30px; }
  .cert-file-middle { right: 10px; }
  .cert-standard-grid { grid-template-columns: 105px 1fr; gap: 35px; }
  .cert-standard-heading { gap: 30px; }
  .tent-grid, .cert-document-grid { grid-template-columns: 1fr 1fr; }
  .cert-document-grid article { min-height: 275px; }
}

@media (max-width: 760px) {
  .cert-hero { padding: 72px 0 70px; }
  .cert-hero-grid { grid-template-columns: 1fr; }
  .cert-hero h1 { font-size: 34px; line-height: 1.08; }
  .cert-hero .hero-lead { font-size: 17px; }
  .cert-hero-diagram { height: 265px; margin-top: 15px; }
  .cert-file { width: 205px; height: 245px; padding: 20px; border-radius: 14px; }
  .cert-file-back { right: 6px; }.cert-file-middle { right: 36px; }.cert-file-front { right: 70px; }
  .cert-file > span { margin-bottom: 70px; }.cert-file-front > span { margin-bottom: 25px; }.cert-file-front > strong { margin-bottom: 25px; font-size: 22px; }.cert-file-front > div { margin-top: 7px; }
  .cert-section-nav { top: 68px; }
  .cert-section-nav-inner { gap: 21px; }
  .cert-intro { padding: 62px 0; }
  .cert-intro-grid, .cert-standard-heading, .cert-method-grid, .crib-layout, .cert-documents-heading, .cert-glossary-grid, .cert-references-grid { grid-template-columns: 1fr; gap: 30px; }
  .cert-intro h2, .cert-glossary-heading h2 { font-size: 28px; }
  .cert-intro-copy > p { font-size: 16px; }
  .cert-principles { grid-template-columns: 1fr; }
  .cert-principles span { padding: 18px 0; border-bottom: 1px solid var(--line); }
  .cert-standard { padding: 72px 0; }
  .cert-standard-grid { grid-template-columns: 1fr; gap: 24px; }
  .cert-standard-index { display: flex; align-items: center; gap: 20px; }
  .cert-standard-index > span { margin: 12px 0; font-size: 42px; }
  .cert-standard-index p { margin: 0; }
  .cert-standard-heading { margin-bottom: 35px; padding-bottom: 28px; }
  .cert-standard-heading h2 { font-size: 28px; }
  .cert-standard-heading > p { font-size: 16px; }
  .cert-fact-strip { grid-template-columns: 1fr 1fr; }
  .cert-fact-strip span { min-height: 90px; border-bottom: 1px solid var(--line-dark); }
  .cert-result { padding: 26px; }
  .cert-comparison, .cert-criteria-grid, .euro-tests, .cert-glossary-list { grid-template-columns: 1fr; }
  .cert-comparison ol { min-height: 0; }
  .crib-visual { min-height: 330px; }
  .cert-criteria-grid article { padding: 25px; }
  .tent-grid, .cert-document-grid { grid-template-columns: 1fr; }
  .tent-grid article { min-height: 215px; }.tent-grid h3 { margin-top: 35px; }
  .cert-weather-note { grid-template-columns: 1fr; gap: 8px; }
  .euro-code { grid-template-columns: 1fr; gap: 14px; }
  .euro-code > i { display: none; }
  .euro-code > div { padding-bottom: 15px; border-bottom: 1px solid var(--line-dark); }
  .euro-tests article { grid-template-columns: 58px 1fr; padding: 22px; }.euro-tests article > span { width: 56px; height: 56px; }
  .euro-scale { grid-template-columns: repeat(7, minmax(52px, 1fr)); overflow-x: auto; }
  .euro-scale > span { min-height: 64px; padding: 14px 9px; font-size: 16px; }
  .cert-documents, .cert-glossary { padding: 72px 0; }
  .cert-documents-heading h2 { font-size: 28px; }
  .cert-document-grid article { min-height: 250px; }
  .cert-glossary-heading { position: static; }
  .cert-glossary-list > div, .cert-glossary-list > div:nth-child(even) { min-height: auto; padding: 22px 0; border-right: 0; }
  .cert-references { padding: 62px 0 90px; }
}

@media (max-width: 420px) {
  .cert-file-front { right: 42px; }.cert-file-middle { right: 22px; }.cert-file-back { right: 2px; }
  .cert-fact-strip { grid-template-columns: 1fr; }
  .cert-fact-strip span { border-right: 0; }
  .cert-test-label { align-items: flex-start; }
}