:root {
  --navy: #111a35;
  --navy-2: #182441;
  --orange: #f39a22;
  --green: #3a933d;
  --lime: #b8dc67;
  --ink: #182033;
  --muted: #626b7a;
  --line: #dfe3e8;
  --paper: #f4f5f6;
  --white: #fff;
  --shell: min(1180px, calc(100% - 40px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; color: var(--ink); background: var(--white); font: 16px/1.65 Arial, Helvetica, sans-serif; }
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; }
.shell { width: var(--shell); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 99; background: var(--white); color: var(--navy); padding: .75rem 1rem; }
.skip-link:focus { top: 1rem; }

.site-header { position: fixed; z-index: 50; inset: 0 0 auto; background: rgba(255, 255, 255, .97); border-bottom: 1px solid rgba(17, 26, 53, .08); transition: box-shadow .2s ease; }
.site-header.scrolled { box-shadow: 0 12px 36px rgba(17, 26, 53, .12); }
.nav-shell { width: var(--shell); height: 86px; margin: auto; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand img { width: 168px; height: 62px; object-fit: contain; }
.main-nav { display: flex; align-items: center; gap: 1.45rem; }
.main-nav a { font-size: .88rem; font-weight: 700; text-decoration: none; }
.main-nav a:not(.nav-cta):hover, .main-nav a[aria-current="page"] { color: var(--orange); }
.nav-cta { padding: .78rem 1.05rem; border: 1px solid var(--navy); }
.nav-cta:hover { background: var(--navy); color: var(--white); }
.menu-toggle { display: none; border: 0; background: transparent; padding: .5rem; }
.menu-toggle span:not(.sr-only) { display: block; width: 26px; height: 2px; margin: 5px; background: var(--navy); }

.hero { position: relative; min-height: 790px; padding-top: 86px; display: grid; align-items: center; overflow: hidden; background: var(--navy); color: var(--white); }
.hero picture { position: absolute; inset: 86px 0 0; height: calc(100% - 86px); }
.hero-image, .hero-overlay { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-image { object-fit: cover; object-position: center; }
.hero-overlay { background: linear-gradient(90deg, rgba(8, 15, 34, .96) 0%, rgba(8, 15, 34, .84) 44%, rgba(8, 15, 34, .28) 72%, rgba(8, 15, 34, .06) 100%), linear-gradient(0deg, rgba(8, 15, 34, .34), transparent 45%); }
.hero-content { position: relative; z-index: 2; padding-block: 7rem 5rem; }
.eyebrow, .section-kicker { margin: 0 0 1rem; color: var(--orange); font-size: .78rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.hero h1 { max-width: 920px; margin: 0; font-size: clamp(2.85rem, 5.5vw, 5.35rem); line-height: 1; letter-spacing: -.055em; }
.hero-lead { max-width: 760px; margin: 2rem 0 0; color: rgba(255, 255, 255, .8); font-size: 1.18rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2.4rem; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: .8rem 1.2rem; border: 1px solid transparent; font-weight: 800; text-decoration: none; cursor: pointer; transition: transform .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--orange); color: #11182a; }
.button-primary:hover { background: #ffad3f; }
.button-ghost { border-color: rgba(255, 255, 255, .48); color: var(--white); }
.button-ghost:hover { background: rgba(255, 255, 255, .1); }
.hero-marker { position: absolute; z-index: 3; right: 0; bottom: 0; display: grid; grid-template-columns: auto auto; align-items: center; gap: 1rem; padding: 1.2rem 2rem; background: var(--orange); color: var(--navy); }
.hero-marker span { font-size: .78rem; font-weight: 800; letter-spacing: .15em; }
.hero-marker b { font-size: 1.7rem; }

.promise-strip { background: var(--navy); color: var(--white); }
.promise-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.promise-grid p { margin: 0; padding: 1.4rem 1.8rem; border-left: 1px solid rgba(255, 255, 255, .14); display: grid; gap: .15rem; }
.promise-grid p:last-child { border-right: 1px solid rgba(255, 255, 255, .14); }
.promise-grid strong { color: var(--lime); font-size: .95rem; }
.promise-grid span { color: rgba(255, 255, 255, .62); font-size: .85rem; }

.section { padding: 7rem 0; }
.intro-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: clamp(3rem, 8vw, 8rem); align-items: start; }
h1, h2, h3 { text-wrap: balance; }
h2 { margin: 0; color: var(--navy); font-size: clamp(2.3rem, 4vw, 4.1rem); line-height: 1.04; letter-spacing: -.045em; }
.intro-copy .lead { margin-top: 0; color: var(--navy); font-size: 1.3rem; line-height: 1.55; }
.intro-copy p { color: var(--muted); }
.principles { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 2rem; }
.principles span { padding: .55rem .8rem; border: 1px solid var(--line); font-size: .84rem; font-weight: 700; }

.services { background: var(--paper); }
.section-heading { display: grid; grid-template-columns: 1.3fr .7fr; gap: 4rem; align-items: end; margin-bottom: 3.5rem; }
.section-heading > p { max-width: 440px; margin: 0 0 .4rem; color: var(--muted); }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid #cdd2d8; border-left: 1px solid #cdd2d8; }
.service-card { min-height: 315px; padding: 2rem; border-right: 1px solid #cdd2d8; border-bottom: 1px solid #cdd2d8; background: var(--white); transition: transform .25s ease, box-shadow .25s ease; display: flex; flex-direction: column; align-items: flex-start; }
.service-card:hover { position: relative; z-index: 2; transform: translateY(-5px); box-shadow: 0 22px 50px rgba(17, 26, 53, .13); }
.service-card.featured { background: var(--navy); color: var(--white); }
.service-number { display: block; margin-bottom: 2.2rem; color: var(--orange); font-weight: 800; }
.service-card h3 { margin: 0; color: var(--navy); font-size: 1.33rem; line-height: 1.25; }
.service-card.featured h3 { color: var(--white); }
.service-card p { color: var(--muted); }
.service-card.featured p { color: rgba(255, 255, 255, .72); }
.service-link { margin-top: auto; padding-top: 1rem; color: var(--navy); font-size: .82rem; font-weight: 800; text-decoration-color: var(--orange); text-underline-offset: .25rem; }
.service-card.featured .service-link { color: var(--lime); }
.service-card-wide { grid-column: span 3; min-height: auto; display: grid; grid-template-columns: 80px minmax(260px, .7fr) 1fr; align-items: start; gap: 1rem; }
.service-card-wide .service-number { margin: .2rem 0 0; }
.service-card-wide p { margin: 0; }

.fieldwork-grid { display: grid; grid-template-columns: 1.15fr .85fr; grid-template-rows: repeat(2, 250px); gap: 1rem; }
.fieldwork-card { position: relative; margin: 0; overflow: hidden; background: var(--navy); }
.fieldwork-card-large { grid-row: span 2; }
.fieldwork-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.fieldwork-card:hover img { transform: scale(1.025); }
.fieldwork-card figcaption { position: absolute; inset: auto 0 0; padding: 2.5rem 1.25rem 1.1rem; background: linear-gradient(transparent, rgba(8, 15, 34, .9)); color: var(--white); font-size: .9rem; font-weight: 800; }
.fieldwork-note { margin: 1rem 0 0; color: var(--muted); font-size: .82rem; }

.method { background: var(--navy); color: var(--white); }
.method-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(3rem, 10vw, 9rem); }
.section-kicker.light { color: var(--lime); }
.method h2 { color: var(--white); }
.method-copy > p:last-child { max-width: 470px; color: rgba(255, 255, 255, .66); }
.steps { margin: 0; padding: 0; list-style: none; }
.steps li { display: grid; grid-template-columns: 70px 1fr; gap: 1rem; padding: 1.45rem 0; border-top: 1px solid rgba(255, 255, 255, .17); }
.steps li:last-child { border-bottom: 1px solid rgba(255, 255, 255, .17); }
.steps b { color: var(--orange); font-size: .8rem; }
.steps h3 { margin: 0; font-size: 1.25rem; }
.steps p { margin: .25rem 0 0; color: rgba(255, 255, 255, .64); }

.faq { background: var(--paper); }
.faq-layout { display: grid; grid-template-columns: .78fr 1.22fr; gap: clamp(3rem, 8vw, 8rem); align-items: start; }
.faq-intro { color: var(--muted); }
.faq-list { border-top: 1px solid #cdd2d8; }
.faq-list details { border-bottom: 1px solid #cdd2d8; }
.faq-list summary { position: relative; padding: 1.45rem 2.5rem 1.45rem 0; color: var(--navy); font-size: 1.05rem; font-weight: 800; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: .3rem; top: 1.25rem; color: var(--orange); font-size: 1.45rem; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list p { margin: -.3rem 0 1.5rem; color: var(--muted); }

.contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(3rem, 9vw, 8rem); }
.contact-copy > p:not(.section-kicker) { color: var(--muted); }
.contact-email { display: inline-block; margin-top: 1rem; color: var(--navy); font-size: clamp(1.1rem, 2vw, 1.45rem); font-weight: 800; text-decoration-color: var(--orange); text-underline-offset: .3rem; }
.contact-form { padding: 2rem; background: var(--paper); }
.contact-form label { display: grid; gap: .45rem; margin-bottom: 1rem; color: var(--navy); font-size: .85rem; font-weight: 800; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
input, textarea, select { width: 100%; border: 1px solid #cdd2d8; border-radius: 0; background: var(--white); padding: .85rem; color: var(--ink); font: inherit; }
input:focus, textarea:focus, select:focus { outline: 3px solid rgba(243, 154, 34, .26); border-color: var(--orange); }
textarea { resize: vertical; }
.contact-form .consent { grid-template-columns: auto 1fr; align-items: start; font-weight: 500; }
.consent input { width: 18px; height: 18px; margin-top: .18rem; }
.contact-form .button { border: 0; font-size: .95rem; }
.form-note { margin: .8rem 0 0; color: var(--muted); font-size: .8rem; }
.consent a { color: var(--navy); text-underline-offset: .18rem; }

.privacy { padding: 4rem 0; background: var(--paper); border-top: 1px solid var(--line); }
.privacy-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: clamp(2rem, 8vw, 7rem); }
.privacy h2 { font-size: clamp(2rem, 3vw, 3rem); }
.privacy-copy p { margin: 0 0 1rem; color: var(--muted); }
.privacy-copy p:last-child { margin-bottom: 0; }
.privacy-copy a { color: var(--navy); font-weight: 700; text-underline-offset: .2rem; }

/* Interior service pages */
.page-main { padding-top: 86px; }
.breadcrumbs { padding: 1rem 0; background: var(--paper); border-bottom: 1px solid var(--line); color: var(--muted); font-size: .8rem; }
.breadcrumbs a { color: var(--navy); }
.page-hero { padding: 6.5rem 0 5.5rem; background: var(--navy); color: var(--white); }
.page-hero h1 { max-width: 930px; margin: 0; font-size: clamp(2.75rem, 5.2vw, 5rem); line-height: 1; letter-spacing: -.05em; }
.page-hero .lead { max-width: 760px; margin: 1.75rem 0 0; color: rgba(255, 255, 255, .75); font-size: 1.2rem; }
.page-hero .hero-actions { margin-top: 2rem; }
.content-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: clamp(3rem, 7vw, 7rem); align-items: start; }
.prose h2 { margin: 3.5rem 0 1rem; font-size: clamp(2rem, 3.2vw, 3.2rem); }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin: 2rem 0 .5rem; color: var(--navy); font-size: 1.3rem; }
.prose p, .prose li { color: var(--muted); }
.prose strong { color: var(--navy); }
.prose ul, .prose ol { padding-left: 1.25rem; }
.prose li { margin-bottom: .45rem; }
.sidebar-card { position: sticky; top: 110px; padding: 1.7rem; background: var(--paper); border-top: 4px solid var(--orange); }
.sidebar-card h2 { font-size: 1.55rem; letter-spacing: -.025em; }
.sidebar-card p { color: var(--muted); }
.sidebar-card .button { width: 100%; }
.scope-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin: 2rem 0; }
.scope-item { padding: 1.25rem; border: 1px solid var(--line); }
.scope-item h3 { margin: 0 0 .35rem; color: var(--navy); font-size: 1rem; }
.scope-item p { margin: 0; font-size: .9rem; }
.source-note { margin-top: 2.5rem; padding: 1.25rem; border-left: 4px solid var(--orange); background: var(--paper); font-size: .9rem; }
.related { background: var(--paper); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 2rem; }
.related-card { padding: 1.4rem; background: var(--white); border: 1px solid var(--line); text-decoration: none; }
.related-card strong { display: block; color: var(--navy); }
.related-card span { color: var(--orange); font-size: .8rem; font-weight: 800; }
.simple-cta { background: var(--navy); color: var(--white); }
.simple-cta h2 { color: var(--white); }
.simple-cta p { max-width: 670px; color: rgba(255, 255, 255, .7); }

/* Blog and technical articles */
.home-blog, .blog-listing { background: var(--white); }
.blog-hero { background: linear-gradient(120deg, var(--navy), #24365e); }
.article-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid #cdd2d8; border-left: 1px solid #cdd2d8; }
.article-card { min-height: 330px; border-right: 1px solid #cdd2d8; border-bottom: 1px solid #cdd2d8; background: var(--white); display: flex; }
.article-card-featured { background: var(--navy); color: var(--white); }
.article-card-copy { padding: clamp(1.6rem, 4vw, 2.6rem); display: flex; flex-direction: column; align-items: flex-start; }
.article-meta { margin: 0 0 2.2rem; color: var(--orange); font-size: .78rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.article-card h2, .article-card h3 { margin: 0; color: var(--navy); font-size: clamp(1.65rem, 2.7vw, 2.45rem); line-height: 1.08; letter-spacing: -.035em; }
.article-card h3 { font-size: clamp(1.45rem, 2.4vw, 2.1rem); }
.article-card-featured h2, .article-card-featured h3 { color: var(--white); }
.article-card h2 a, .article-card h3 a { text-decoration: none; }
.article-card p:not(.article-meta) { color: var(--muted); }
.article-card-featured p:not(.article-meta) { color: rgba(255, 255, 255, .7); }
.article-link { margin-top: auto; padding-top: 1.2rem; color: var(--navy); font-size: .86rem; font-weight: 800; text-underline-offset: .25rem; }
.article-card-featured .article-link { color: var(--lime); }
.blog-all { margin: 1.5rem 0 0; text-align: right; }
.blog-all a { color: var(--navy); font-weight: 800; text-decoration-color: var(--orange); text-underline-offset: .3rem; }

.article-main { background: var(--white); }
.article-header { padding: 6.5rem 0 5rem; background: var(--navy); color: var(--white); }
.article-shell { max-width: 980px; }
.article-header h1 { margin: 0; font-size: clamp(2.8rem, 5.5vw, 5.2rem); line-height: 1; letter-spacing: -.052em; }
.article-deck { max-width: 830px; margin: 1.8rem 0 0; color: rgba(255, 255, 255, .75); font-size: 1.2rem; }
.article-byline { display: flex; flex-wrap: wrap; gap: .55rem 1.2rem; margin-top: 2.2rem; color: rgba(255, 255, 255, .58); font-size: .82rem; }
.article-byline span + span { padding-left: 1.2rem; border-left: 1px solid rgba(255, 255, 255, .22); }
.article-layout { display: grid; grid-template-columns: minmax(0, 760px) 300px; justify-content: space-between; gap: clamp(3rem, 7vw, 7rem); padding-top: 5rem; padding-bottom: 7rem; align-items: start; }
.article-body { min-width: 0; font-size: 1.05rem; }
.article-body > p { margin: 0 0 1.35rem; }
.article-body .article-intro { color: var(--navy); font-size: 1.3rem; line-height: 1.55; }
.article-callout { margin: 2.5rem 0; padding: 1.5rem; border-left: 5px solid var(--orange); background: var(--paper); }
.article-callout strong { display: block; color: var(--navy); font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; }
.article-callout p { margin: .45rem 0 0; color: var(--muted); }
.numbered-checklist { list-style: none; counter-reset: checklist; padding: 0 !important; }
.numbered-checklist li { counter-increment: checklist; position: relative; padding: 1.15rem 0 1.15rem 3.2rem; border-top: 1px solid var(--line); }
.numbered-checklist li:last-child { border-bottom: 1px solid var(--line); }
.numbered-checklist li::before { content: counter(checklist, decimal-leading-zero); position: absolute; left: 0; top: 1.15rem; color: var(--orange); font-weight: 800; }
.source-list a { color: var(--navy); font-weight: 700; text-underline-offset: .2rem; }
.article-disclaimer { margin-top: 2.5rem !important; padding: 1rem 1.2rem; border: 1px solid var(--line); background: #fbfbfc; font-size: .9rem; }
.article-sidebar { display: grid; gap: 1rem; position: sticky; top: 110px; }
.article-sidebar .sidebar-card { position: static; }
.article-toc { padding: 1.4rem; border: 1px solid var(--line); display: grid; gap: .7rem; }
.article-toc strong { color: var(--navy); }
.article-toc a { color: var(--muted); font-size: .9rem; text-underline-offset: .2rem; }
.article-faq { margin-top: 3.5rem; }
.article-faq details { border-top: 1px solid var(--line); }
.article-faq details:last-child { border-bottom: 1px solid var(--line); }
.article-faq summary { padding: 1.1rem 0; color: var(--navy); font-weight: 800; cursor: pointer; }
.article-faq p { margin: 0 0 1.2rem; }

/* Análisis de trazabilidad 2026 */
.trace-hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) 290px; gap: clamp(3rem, 7vw, 7rem); align-items: end; }
.trace-article-header h1 { max-width: 900px; }
.trace-article-header .article-deck { margin-bottom: 1.8rem; }
.deadline-card { padding: 1.6rem; border-top: 4px solid var(--orange); background: rgba(255,255,255,.07); }
.deadline-card span { display: block; color: var(--lime); font-size: .73rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.deadline-card strong { display: block; margin: .65rem 0; color: var(--white); font-size: 2.35rem; letter-spacing: -.04em; }
.deadline-card p { margin: 0; color: rgba(255,255,255,.65); font-size: .88rem; }
.trace-article-body h2 { scroll-margin-top: 110px; }
.standfirst { color: var(--navy) !important; font-size: 1.24rem; line-height: 1.55; }
.answer-box { margin-bottom: 2.5rem; padding: 2rem; background: var(--paper); border-left: 5px solid var(--orange); }
.answer-box h2 { margin: 0 0 1rem; font-size: clamp(1.8rem, 3vw, 2.7rem); }
.answer-box p:last-child { margin-bottom: 0; color: var(--ink); }
.trace-toc { margin: 2.5rem 0 3rem; padding: 1.5rem; border: 1px solid var(--line); }
.trace-toc strong { color: var(--navy); }
.trace-toc ol { margin: .8rem 0 0; padding-left: 1.25rem; columns: 2; }
.trace-toc a { color: var(--navy); text-underline-offset: .2rem; }
.table-wrap { margin: 1.8rem 0; overflow-x: auto; border: 1px solid var(--line); }
.table-wrap table { width: 100%; border-collapse: collapse; min-width: 680px; }
.table-wrap th, .table-wrap td { padding: 1rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.table-wrap th { background: var(--navy); color: var(--white); font-size: .82rem; }
.table-wrap td { color: var(--muted); font-size: .9rem; }
.status { display: inline-block; padding: .3rem .5rem; background: #e8f2e8; color: #226625; font-size: .72rem; font-weight: 800; }
.status-urgent { background: #fff0dc; color: #8a4e00; }
.decision-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin: 1.8rem 0; }
.decision-grid section { padding: 1.25rem; border: 1px solid var(--line); }
.decision-grid span { color: var(--orange); font-size: .76rem; font-weight: 800; }
.decision-grid h3 { margin: .45rem 0; }
.decision-grid p { margin: 0; font-size: .9rem; }
.process-list { margin-block: 1.5rem; padding: 0 !important; list-style: none; counter-reset: process; }
.process-list li { position: relative; padding: 1rem 0 1rem 3.3rem; border-top: 1px solid var(--line); counter-increment: process; }
.process-list li::before { content: counter(process, decimal-leading-zero); position: absolute; left: 0; color: var(--orange); font-size: .8rem; font-weight: 800; }
.process-list li:last-child { border-bottom: 1px solid var(--line); }
.check-list { padding: 0 !important; list-style: none; }
.check-list li { position: relative; padding-left: 1.75rem; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 900; }
.myth-box { margin: 3.5rem 0; padding: 2rem; background: var(--navy); color: var(--white); }
.myth-box h2 { margin: 0 0 1rem; color: var(--white); font-size: clamp(1.9rem, 3vw, 2.8rem); }
.myth-box p:last-child { margin-bottom: 0; color: rgba(255,255,255,.72); }
.myth-box strong { color: var(--lime); }
.action-plan section { display: grid; grid-template-columns: 48px 1fr; gap: 1rem; padding: 1.2rem 0; border-top: 1px solid var(--line); }
.action-plan section:last-child { border-bottom: 1px solid var(--line); }
.action-plan b { color: var(--orange); font-size: .82rem; }
.action-plan h3 { margin: 0; }
.action-plan p { margin: .2rem 0 0; }
.faq-inline { margin-top: 4rem; }
.faq-inline details { border-top: 1px solid var(--line); }
.faq-inline details:last-child { border-bottom: 1px solid var(--line); }
.faq-inline summary { padding: 1.2rem 2rem 1.2rem 0; color: var(--navy); font-weight: 800; cursor: pointer; }
.references { margin-top: 4rem; padding-top: 1rem; border-top: 4px solid var(--navy); }
.references h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); }
.references p { font-size: .86rem; }
.lead-card ul { padding-left: 1.1rem; color: var(--muted); font-size: .88rem; }
.lead-card small { display: block; margin-top: 1rem; color: var(--muted); line-height: 1.45; }
.diagnostic-section { background: var(--navy); color: var(--white); }
.diagnostic-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(3rem, 8vw, 7rem); align-items: start; }
.diagnostic-grid h2 { color: var(--white); }
.diagnostic-grid > div > p:not(.section-kicker) { color: rgba(255,255,255,.68); }
.fit-note { margin-top: 2rem; padding: 1.25rem; border: 1px solid rgba(255,255,255,.18); display: grid; gap: .4rem; }
.fit-note strong { color: var(--lime); }
.fit-note span { color: rgba(255,255,255,.65); }
.diagnostic-form { background: var(--white); color: var(--ink); }
.response-matrix { margin: 2rem 0; overflow-x: auto; border: 1px solid var(--line); }
.response-matrix table { width: 100%; min-width: 620px; border-collapse: collapse; font-size: .9rem; }
.response-matrix th, .response-matrix td { padding: .9rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); text-align: left; }
.response-matrix th { background: var(--navy); color: var(--white); }
.response-matrix tr:last-child td { border-bottom: 0; }

/* Interactive royalties guide */
.royalties-header { background: linear-gradient(125deg, #0b132c 0%, #17284f 68%, #2c4f68 100%); }
.process-presentation { margin: 3rem 0; overflow: hidden; background: var(--navy); color: var(--white); border: 1px solid #2b385c; }
.process-presentation-head { display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: end; padding: clamp(1.5rem, 4vw, 2.5rem); border-bottom: 1px solid rgba(255, 255, 255, .14); }
.process-presentation-head h2 { margin: 0; color: var(--white); font-size: clamp(2rem, 4vw, 3.5rem); }
.process-presentation-head p:not(.section-kicker) { max-width: 580px; margin: .8rem 0 0; color: rgba(255, 255, 255, .68); }
.process-play, .process-controls button { border: 1px solid rgba(255, 255, 255, .4); background: transparent; color: var(--white); padding: .75rem 1rem; font: inherit; font-weight: 800; cursor: pointer; }
.process-play:hover, .process-controls button:hover { border-color: var(--orange); color: var(--orange); }
.process-stage { min-height: 440px; }
.process-slide { display: grid; grid-template-columns: 110px 1fr; gap: clamp(1rem, 4vw, 3rem); padding: clamp(1.8rem, 5vw, 3.5rem); }
.process-presentation.is-enhanced .process-slide:not(.is-active) { display: none; }
.process-number { color: var(--orange); font-size: clamp(3.4rem, 8vw, 6.5rem); font-weight: 800; line-height: .9; letter-spacing: -.07em; }
.process-label { margin: 0 0 .4rem !important; color: var(--lime) !important; font-size: .78rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.process-slide h3 { margin: 0; color: var(--white); font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.02; letter-spacing: -.04em; }
.process-slide-copy > p:not(.process-label) { max-width: 650px; color: rgba(255, 255, 255, .76); font-size: 1.08rem; }
.process-slide-copy b { color: var(--white); }
.process-slide dl { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin: 2rem 0 0; background: rgba(255, 255, 255, .14); }
.process-slide dl div { padding: 1rem; background: #151f3e; }
.process-slide dt { color: var(--orange); font-size: .75rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.process-slide dd { margin: .3rem 0 0; color: rgba(255, 255, 255, .75); font-size: .9rem; }
.process-progress { display: none; grid-template-columns: repeat(9, 1fr); border-top: 1px solid rgba(255, 255, 255, .14); }
.process-presentation.is-enhanced .process-progress { display: grid; }
.process-progress button { min-height: 46px; border: 0; border-right: 1px solid rgba(255, 255, 255, .1); background: transparent; color: rgba(255, 255, 255, .55); font-weight: 800; cursor: pointer; }
.process-progress button[aria-current="step"] { background: var(--orange); color: var(--navy); }
.process-controls { display: none; grid-template-columns: 1fr auto 1fr; gap: 1rem; align-items: center; padding: 1rem clamp(1rem, 3vw, 2rem); background: #0b122a; }
.process-presentation.is-enhanced .process-controls { display: grid; }
.process-controls button:first-child { justify-self: start; }
.process-controls button:last-child { justify-self: end; }
.process-controls p { margin: 0; color: rgba(255, 255, 255, .7); font-size: .86rem; font-weight: 800; }
.process-noscript { padding: 0 2rem 2rem; color: rgba(255, 255, 255, .7); }
.portal-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin: -1rem 0 3rem; }
.button-outline { border-color: var(--navy); color: var(--navy); }
.button-outline:hover { background: var(--navy); color: var(--white); }
.check-list { padding: 0 !important; list-style: none; }
.check-list li { position: relative; padding: .85rem 0 .85rem 2.3rem; border-bottom: 1px solid var(--line); }
.check-list li::before { content: "✓"; position: absolute; left: .15rem; color: var(--green); font-weight: 800; }
.document-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin: 2rem 0; }
.document-grid article { padding: 1.3rem; border: 1px solid var(--line); }
.document-grid span { color: var(--orange); font-size: .72rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.document-grid h3 { margin: .35rem 0; }
.document-grid p { margin: 0; font-size: .92rem; }
.decision-strip { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin: 2rem 0; background: var(--line); border: 1px solid var(--line); }
.decision-strip div { display: grid; gap: .35rem; padding: 1.3rem; background: var(--paper); }
.decision-strip strong { color: var(--navy); }
.decision-strip span { color: var(--muted); font-size: .9rem; }

/* RUCOM traceability guide */
.rucom-header { background: linear-gradient(125deg, #091429 0%, #18394d 62%, #24605e 100%); }
.trace-route { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin: 2.5rem 0; overflow: hidden; border: 1px solid var(--line); background: var(--line); }
.trace-route div { position: relative; min-height: 170px; padding: 1.35rem; background: var(--paper); }
.trace-route div::after { content: "→"; position: absolute; top: 1.15rem; right: 1rem; color: var(--orange); font-weight: 800; }
.trace-route div:nth-child(3n)::after, .trace-route div:last-child::after { content: none; }
.trace-route b { display: block; color: var(--orange); font-size: .75rem; letter-spacing: .12em; }
.trace-route strong { display: block; margin-top: 1.25rem; color: var(--navy); font-size: 1.1rem; }
.trace-route span { display: block; margin-top: .4rem; color: var(--muted); font-size: .88rem; }

/* Mine closure guide */
.closure-header { background: linear-gradient(125deg, #0b152e 0%, #283f3c 58%, #5a6336 100%); }
.closure-types { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin: 2.5rem 0; border: 1px solid var(--line); background: var(--line); }
.closure-types article { min-height: 190px; padding: 1.4rem; background: var(--paper); }
.closure-types article:last-child { grid-column: 1 / -1; min-height: auto; }
.closure-types b { color: var(--orange); font-size: .75rem; letter-spacing: .12em; }
.closure-types h3 { margin: 1rem 0 .4rem; color: var(--navy); }
.closure-types p { margin: 0; font-size: .92rem; }
.closure-route { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px; margin: 2.5rem 0; overflow: hidden; border: 1px solid #344764; background: #344764; }
.closure-route div { position: relative; min-height: 185px; padding: 1.25rem; background: var(--navy); color: var(--white); }
.closure-route div::after { content: "→"; position: absolute; right: .65rem; bottom: .8rem; color: var(--lime); font-weight: 800; }
.closure-route div:last-child::after { content: none; }
.closure-route b { display: block; color: var(--orange); }
.closure-route span { display: block; margin-top: 1rem; color: rgba(255,255,255,.68); font-size: .86rem; }

/* OTTM and mineral traceability guide */
.ottm-header { background: linear-gradient(125deg, #08152d 0%, #123b50 58%, #23645b 100%); }
.ottm-route { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin: 2.5rem 0; overflow: hidden; border: 1px solid #344764; background: #344764; }
.ottm-route div { position: relative; min-height: 190px; padding: 1.3rem; background: var(--navy); color: var(--white); }
.ottm-route div::after { content: "→"; position: absolute; right: .7rem; bottom: .8rem; color: var(--lime); font-weight: 800; }
.ottm-route div:nth-child(4n)::after, .ottm-route div:last-child::after { content: none; }
.ottm-route b { display: block; color: var(--orange); font-size: .75rem; letter-spacing: .12em; }
.ottm-route strong { display: block; margin-top: 1.15rem; color: var(--white); font-size: 1.05rem; }
.ottm-route span { display: block; margin-top: .5rem; color: rgba(255,255,255,.68); font-size: .86rem; }
.ottm-schedule table { min-width: 760px; }
.status-chip { display: inline-block; padding: .35rem .55rem; border-radius: 999px; font-size: .72rem; font-weight: 800; white-space: nowrap; }
.status-transition { background: #fff1dc; color: #8d4a00; }
.status-upcoming { background: #e7eef7; color: #243e61; }
.warning-list li::before { content: "!"; color: var(--orange); }

.site-footer { background: #090f21; color: rgba(255, 255, 255, .58); padding: 2rem 0; }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; align-items: center; gap: 2rem; font-size: .78rem; }
.footer-grid > p:last-child { text-align: right; }
.footer-brand { display: flex; align-items: center; gap: 1rem; color: var(--white); }
.footer-brand img { width: 88px; height: 44px; padding: .2rem; object-fit: contain; background: var(--white); }
.footer-brand p { margin: 0; font-weight: 800; }
.footer-brand span { color: rgba(255, 255, 255, .58); font-size: .72rem; font-weight: 500; }
.site-footer a { color: inherit; text-underline-offset: .2rem; }

@media (max-width: 1000px) {
  .menu-toggle { display: block; z-index: 2; }
  .main-nav { position: fixed; inset: 86px 0 0; padding: 3rem 20px; background: var(--white); display: none; flex-direction: column; align-items: stretch; gap: 0; }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 1rem 0; border-bottom: 1px solid var(--line); font-size: 1.15rem; }
  .main-nav .nav-cta { margin-top: 1.5rem; padding: 1rem; text-align: center; }
  .hero { min-height: 730px; }
  .hero-overlay { background: linear-gradient(90deg, rgba(8, 15, 34, .95), rgba(8, 15, 34, .62)), linear-gradient(0deg, rgba(8, 15, 34, .5), transparent); }
  .promise-grid, .service-grid { grid-template-columns: 1fr; }
  .promise-grid p, .promise-grid p:last-child { border-right: 1px solid rgba(255, 255, 255, .14); border-bottom: 1px solid rgba(255, 255, 255, .14); }
  .intro-grid, .method-grid, .contact-grid, .section-heading, .privacy-grid, .faq-layout, .content-grid, .article-layout, .trace-hero-grid, .diagnostic-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .section { padding: 5rem 0; }
  .service-card { min-height: auto; }
  .service-card-wide { grid-column: auto; display: block; }
  .service-card-wide .service-number { margin-bottom: 2.2rem; }
  .service-card-wide p { margin-top: 1rem; }
  .fieldwork-grid { grid-template-columns: 1fr; grid-template-rows: repeat(3, 300px); }
  .fieldwork-card-large { grid-row: auto; }
  .sidebar-card { position: static; }
  .article-sidebar { position: static; }
  .process-presentation-head { grid-template-columns: 1fr; align-items: start; }
  .process-play { justify-self: start; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > p:last-child { text-align: left; }
}

@media (max-width: 600px) {
  :root { --shell: min(1180px, calc(100% - 28px)); }
  .nav-shell { height: 76px; }
  .brand img { width: 138px; height: 55px; }
  .main-nav { top: 76px; }
  .hero { min-height: 720px; padding-top: 76px; }
  .hero picture { top: 76px; height: calc(100% - 76px); }
  .hero h1 { font-size: clamp(2.65rem, 12vw, 4rem); }
  .hero-lead { font-size: 1rem; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-marker { padding: .85rem 1.2rem; }
  .field-row, .scope-list, .related-grid, .article-grid, .decision-grid { grid-template-columns: 1fr; }
  .trace-toc ol { columns: 1; }
  .article-byline { display: grid; gap: .35rem; }
  .article-byline span + span { padding-left: 0; border-left: 0; }
  .article-header { padding: 4.5rem 0; }
  .process-stage { min-height: 0; }
  .trace-route { grid-template-columns: 1fr; }
  .trace-route div { min-height: auto; }
  .trace-route div:nth-child(3n)::after { content: "↓"; }
  .trace-route div::after { content: "↓"; }
  .trace-route div:last-child::after { content: none; }
  .closure-types, .closure-route, .ottm-route { grid-template-columns: 1fr; }
  .closure-types article:last-child { grid-column: auto; }
  .closure-types article, .closure-route div { min-height: auto; }
  .closure-route div::after { content: "↓"; }
  .closure-route div:last-child::after { content: none; }
  .ottm-route div { min-height: auto; }
  .ottm-route div::after, .ottm-route div:nth-child(4n)::after { content: "↓"; }
  .ottm-route div:last-child::after { content: none; }
  .process-slide { grid-template-columns: 1fr; }
  .process-number { font-size: 3.4rem; }
  .process-slide dl, .document-grid, .decision-strip { grid-template-columns: 1fr; }
  .process-progress { overflow-x: auto; grid-template-columns: repeat(9, minmax(44px, 1fr)); }
  .process-controls button { padding: .65rem .75rem; }
  .contact-form { padding: 1.2rem; }
  .page-main { padding-top: 76px; }
  .page-hero { padding: 4.5rem 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}