/* Meridian Fiber Validation — MFV Signal Blue */
:root {
  --ink: #08233b;
  --ink-deep: #041b2c;
  --blue: #0067b1;
  --blue-dark: #00528e;
  --coral: #ff5a36;
  --coral-dark: #f4512a;
  --sky: #e5f5fb;
  --canvas: #f8fbfd;
  --white: #ffffff;
  --steel: #425f70;
  --rule: #b8d0db;

  --shell: min(1180px, calc(100% - 40px));
  --display: "Sora", Arial, sans-serif;
  --body: "Manrope", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font: 400 16px/1.65 var(--body); -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
a { color: inherit; }
img { display: block; max-width: 100%; }
button, input, textarea { font: inherit; }
:focus-visible { outline: 2px solid var(--white); outline-offset: 2px; box-shadow: 0 0 0 5px var(--ink); }
.shell { width: var(--shell); margin-inline: auto; }
.hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0, 0, 0, 0); }
.skip-link { position: fixed; z-index: 1000; top: 12px; left: 18px; padding: 10px 14px; color: var(--white); background: var(--ink-deep); transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }

.site-header { position: sticky; z-index: 100; top: 0; border-bottom: 1px solid rgba(200, 213, 219, .9); background: rgba(255, 255, 255, .96); backdrop-filter: blur(12px); }
.header-inner { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; }
.brand-mark { width: 27px; height: 30px; display: grid; grid-template-columns: repeat(3, 7px); align-items: end; gap: 3px; padding: 2px; border-left: 2px solid var(--coral); }
.brand-mark i { display: block; width: 7px; background: var(--blue); }
.brand-mark i:nth-child(1) { height: 12px; }
.brand-mark i:nth-child(2) { height: 20px; }
.brand-mark i:nth-child(3) { height: 28px; }
.brand-copy { display: grid; line-height: 1.05; text-transform: uppercase; letter-spacing: .08em; }
.brand-copy strong { font: 700 15px/1.1 var(--display); }
.brand-copy span { margin-top: 4px; color: var(--steel); font-size: 10px; font-weight: 700; letter-spacing: .16em; }
.site-nav { display: flex; align-items: center; gap: 30px; }
.site-nav a { color: var(--steel); font-size: 13px; font-weight: 700; text-decoration: none; }
.site-nav a:not(.nav-cta):hover { color: var(--blue); }
.site-nav .nav-cta { min-height: 44px; display: inline-flex; align-items: center; padding: 0 20px; color: var(--ink); background: var(--coral); }
.site-nav .nav-cta:hover { background: var(--coral-dark); }
.menu-toggle { display: none; min-width: 78px; min-height: 44px; border: 1px solid var(--rule); color: var(--ink); background: var(--white); font-size: 12px; font-weight: 800; }
.menu-toggle i, .menu-toggle i::before, .menu-toggle i::after { width: 16px; height: 2px; display: block; background: var(--ink); }
.menu-toggle i { position: relative; margin-left: 9px; }
.menu-toggle i::before, .menu-toggle i::after { content: ""; position: absolute; left: 0; }
.menu-toggle i::before { top: -5px; }
.menu-toggle i::after { top: 5px; }

.hero { overflow: hidden; background: var(--canvas); border-bottom: 1px solid var(--rule); }
.hero-grid { min-height: 650px; display: grid; grid-template-columns: .92fr 1.08fr; }
.hero-copy { display: flex; flex-direction: column; justify-content: center; padding: 84px 64px 70px 0; }
.eyebrow, .kicker { margin: 0 0 22px; color: var(--blue); font-size: 11px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.eyebrow { display: flex; align-items: center; gap: 10px; }
.eyebrow span { width: 28px; height: 2px; background: var(--coral); }
h1, h2, h3 { margin: 0; color: var(--ink); font-family: var(--display); }
h1 { max-width: 650px; font-size: clamp(44px, 5vw, 72px); line-height: .99; letter-spacing: -.052em; }
h2 { max-width: 760px; font-size: clamp(34px, 4vw, 54px); line-height: 1.05; letter-spacing: -.04em; }
h3 { font-size: 20px; line-height: 1.25; letter-spacing: -.02em; }
.hero-lede { max-width: 650px; margin: 28px 0 0; color: var(--steel); font-size: 18px; line-height: 1.7; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 28px; margin-top: 38px; }
.button { min-height: 52px; display: inline-flex; align-items: center; justify-content: center; gap: 14px; padding: 0 22px; border: 0; cursor: pointer; font-size: 13px; font-weight: 800; text-decoration: none; }
.button-primary { color: var(--white); background: var(--blue); }
.button-primary:hover { background: var(--blue-dark); }
.text-link { min-height: 44px; display: inline-flex; align-items: center; gap: 12px; border-bottom: 1px solid var(--ink); font-size: 13px; font-weight: 800; text-decoration: none; }
.hero-facts { display: grid; grid-template-columns: 1fr 1.6fr; gap: 24px; margin: 54px 0 0; padding-top: 24px; border-top: 1px solid var(--rule); }
.hero-facts div { display: grid; gap: 4px; }
.hero-facts dt { color: var(--blue); font-size: 10px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.hero-facts dd { margin: 0; font-size: 13px; font-weight: 700; }
.hero-media { position: relative; min-width: 0; margin: 0 calc((100vw - min(1180px, calc(100vw - 40px))) / -2) 0 0; background: var(--ink); }
.hero-media img { width: 100%; height: 100%; min-height: 650px; object-fit: cover; object-position: 55% center; }
.image-tag { position: absolute; top: 22px; left: 0; padding: 11px 18px; color: var(--ink); background: var(--coral); font-size: 10px; font-weight: 800; letter-spacing: .12em; }

.audience { color: var(--white); background: var(--blue); }
.audience-inner { min-height: 78px; display: flex; align-items: center; justify-content: center; gap: 24px; }
.audience-inner span { color: var(--sky); font-size: 10px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.audience-inner p { margin: 0; font: 600 14px/1.2 var(--display); }
.audience-inner i { width: 3px; height: 3px; border-radius: 50%; background: var(--coral); }

.section { padding: 96px 0; }
.statement { background: var(--white); }
.statement-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: 72px; align-items: center; }
.statement-media { position: relative; min-height: 520px; margin: 0; background: var(--ink); }
.statement-media::before { content: ""; position: absolute; z-index: 1; top: -14px; left: -14px; width: 86px; height: 86px; border-top: 6px solid var(--coral); border-left: 6px solid var(--coral); pointer-events: none; }
.statement-media img { width: 100%; height: 520px; object-fit: cover; }
.statement-copy > p:not(.kicker) { max-width: 640px; margin: 26px 0 0; color: var(--steel); font-size: 18px; }
.statement-rule { display: grid; grid-template-columns: 40px 1fr; margin-top: 38px; border-top: 1px solid var(--ink); }
.statement-rule span, .statement-rule p { margin: 0; padding: 15px 0; border-bottom: 1px solid var(--rule); }
.statement-rule span { color: var(--blue); font: 800 11px/1.65 var(--display); }
.statement-rule p { color: var(--ink); font-weight: 700; }

.section-intro { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(280px, .7fr); gap: 76px; align-items: end; margin-bottom: 54px; }
.section-intro > p { margin: 0; color: var(--steel); font-size: 17px; }
.kicker { margin-bottom: 18px; }
.services { background: var(--canvas); }
.service-list { border-top: 1px solid var(--ink); }
.service-row { display: grid; grid-template-columns: 70px 1fr 1.4fr 32px; gap: 28px; align-items: start; padding: 28px 0; border-bottom: 1px solid var(--rule); }
.service-row > span { color: var(--blue); font: 800 12px/1.4 var(--display); }
.service-row h3 { font-size: 18px; }
.service-row p { margin: 0; color: var(--steel); }
.service-row b { color: var(--blue); font-size: 18px; font-weight: 400; text-align: right; }

.credentials { background: var(--sky); }
.credentials-intro { align-items: start; }
.credential-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.credential-card { display: grid; grid-template-columns: 98px 1fr; gap: 20px; align-items: start; padding: 24px; border: 1px solid var(--rule); background: var(--white); }
.credential-seal { width: 94px; height: 94px; display: grid; place-content: center; border: 2px solid currentColor; border-radius: 50%; color: var(--blue); background: var(--white); box-shadow: inset 0 0 0 5px var(--white), inset 0 0 0 7px currentColor; text-align: center; line-height: 1; }
.credential-seal span, .credential-seal small { font: 800 8px/1 var(--display); letter-spacing: .14em; }
.credential-seal b { margin: 7px 0 6px; font: 800 16px/1 var(--display); }
.seal-safety { color: var(--coral-dark); }
.seal-bicsi { color: var(--ink); }
.credential-kind { margin: 0 0 8px; color: var(--blue); font-size: 9px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.credential-card h3 { font-size: 17px; }
.credential-card p:not(.credential-kind) { margin: 12px 0; color: var(--steel); font-size: 13px; line-height: 1.55; }
.credential-card a { color: var(--blue-dark); font-size: 11px; font-weight: 800; }
.standards-band { display: grid; grid-template-columns: .8fr 1fr 1fr; gap: 18px; margin-top: 18px; }
.standards-heading, .standard-reference { min-height: 128px; padding: 22px; border: 1px solid var(--rule); background: rgba(255, 255, 255, .72); }
.standards-heading h3 { font-size: 17px; }
.standards-heading > p:last-child { margin: 10px 0 0; color: var(--steel); font-size: 12px; }
.standard-reference { display: grid; grid-template-columns: 60px 1fr; gap: 18px; align-items: center; text-decoration: none; }
.standard-reference:hover { border-color: var(--blue); background: var(--white); }
.reference-mark { width: 58px; height: 58px; display: grid; place-items: center; border: 2px solid var(--blue); color: var(--blue); font: 800 16px/1 var(--display); letter-spacing: .08em; }
.standard-reference strong, .standard-reference small { display: block; }
.standard-reference strong { font: 700 14px/1.35 var(--display); }
.standard-reference small { margin-top: 7px; color: var(--steel); font-size: 10px; line-height: 1.4; }
.process { background: var(--white); }
.process-intro { margin-bottom: 54px; }
.process-list { display: grid; grid-template-columns: repeat(4, 1fr); margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--ink); }
.process-list li { min-height: 250px; padding: 26px 26px 18px 0; border-right: 1px solid var(--rule); }
.process-list li:not(:first-child) { padding-left: 26px; }
.process-list li:last-child { border-right: 0; }
.process-list span { width: 38px; height: 38px; display: grid; place-items: center; margin-bottom: 30px; color: var(--white); background: var(--blue); font: 800 11px/1 var(--display); }
.process-list li:last-child span { color: var(--ink); background: var(--coral); }
.process-list h3 { min-height: 50px; margin-bottom: 12px; font-size: 17px; }
.process-list p { margin: 0; color: var(--steel); font-size: 14px; }

.principles { color: var(--white); background: var(--ink-deep); }
.principles-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(580px, 1.1fr); }
.principles-media { min-height: 700px; margin: 0; }
.principles-media img { width: 100%; height: 100%; min-height: 700px; object-fit: cover; object-position: 48% center; }
.principles-panel { padding: 82px max(40px, calc((100vw - 1180px) / 2)) 74px 72px; }
.principles .kicker { color: #8bd9ff; }
.principles h2 { color: var(--white); }
.principles-heading { margin-bottom: 52px; }
.principle-list { border-top: 1px solid #456577; }
.principle-list article { display: grid; grid-template-columns: 48px 1fr; gap: 22px; padding: 24px 0; border-bottom: 1px solid #456577; }
.principle-list span { color: #ff8b70; font: 800 11px/1.5 var(--display); }
.principle-list h3 { color: var(--white); }
.principle-list p { margin: 14px 0 0; color: #b8c8d0; }

.about { background: var(--sky); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; }
.about-copy { padding-top: 32px; border-top: 1px solid var(--blue); }
.about-copy p { color: var(--steel); }
.about-copy p:first-child { margin-top: 0; color: var(--ink); font: 600 clamp(21px, 2.4vw, 30px)/1.45 var(--display); letter-spacing: -.025em; }

.coverage { padding: 64px 0; color: var(--white); background: var(--blue); }
.coverage-grid { display: grid; grid-template-columns: .45fr 1fr .8fr; gap: 40px; align-items: center; }
.coverage .kicker { margin: 0; color: #c8e8f4; }
.coverage h2 { color: var(--white); font-size: clamp(30px, 3.4vw, 44px); }
.coverage p:last-child { margin: 0; color: #d5e6ee; }

.contact { color: var(--white); background: var(--ink-deep); }
.contact-grid { display: grid; grid-template-columns: .86fr 1.14fr; gap: 80px; align-items: start; }
.contact h2 { color: var(--white); }
.kicker-light { color: #90c4db; }
.contact-copy > p:not(.kicker) { max-width: 500px; margin: 28px 0; color: #bdccd4; }
.contact-copy > a { display: inline-flex; gap: 10px; color: var(--white); font-size: 13px; font-weight: 800; overflow-wrap: anywhere; }
.contact-form { display: grid; gap: 18px; padding: 34px; color: var(--ink); background: var(--white); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.contact-form label { display: grid; gap: 8px; font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.contact-form input, .contact-form textarea { width: 100%; min-height: 50px; border: 1px solid #6c8593; border-radius: 0; color: var(--ink); background: var(--white); padding: 12px; text-transform: none; }
.contact-form textarea { resize: vertical; }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--blue); outline: 2px solid var(--blue); outline-offset: 2px; box-shadow: 0 0 0 4px var(--white); }
.button-coral { justify-self: start; color: var(--ink); background: var(--coral); }
.button-coral:hover { background: var(--coral-dark); }
.form-note { margin: 0; color: var(--steel); font-size: 11px; line-height: 1.55; }

.site-footer { padding: 62px 0 24px; color: #d4e0e6; background: #061827; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .6fr 1fr; gap: 72px; align-items: start; }
.footer-brand { color: var(--white); }
.footer-brand .brand-copy span { color: #aabcc6; }
.footer-grid > div:first-child > p { max-width: 390px; margin: 24px 0 0; color: #9fb1bb; font-size: 13px; }
.footer-grid nav { display: grid; gap: 8px; }
.footer-grid nav a, .footer-contact a { min-height: 34px; display: inline-flex; align-items: center; color: #d4e0e6; font-size: 13px; text-decoration: none; }
.footer-grid nav a:hover, .footer-contact a:hover { color: var(--white); text-decoration: underline; }
.footer-contact { display: grid; justify-items: end; gap: 10px; text-align: right; }
.footer-contact span { color: #89a1ae; font-size: 12px; }
.footer-meta { display: flex; justify-content: space-between; gap: 30px; margin-top: 48px; padding-top: 20px; border-top: 1px solid #2b3e4b; color: #7f949f; font-size: 10px; }
.footer-meta p { margin: 0; }
.publication-note { margin-top: 20px; padding: 12px 0; border-top: 1px solid #2b3e4b; color: #8fa1ab; font-size: 11px; }
.publication-note summary { cursor: pointer; color: #b9c8d0; }
.publication-note p { margin: 10px 0 0; }

@media (max-width: 920px) {
  :root { --shell: min(100% - 32px, 760px); }
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .site-nav { position: fixed; z-index: 99; inset: 78px 0 auto; display: none; align-items: stretch; gap: 0; padding: 18px 20px 24px; border-bottom: 1px solid var(--rule); background: var(--white); }
  .site-nav.is-open { display: grid; }
  .site-nav a { min-height: 52px; display: flex; align-items: center; padding: 0 8px; border-bottom: 1px solid var(--rule); font-size: 15px; }
  .site-nav .nav-cta { justify-content: center; margin-top: 16px; border-bottom: 0; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { padding: 70px 0 54px; }
  .hero-media { min-height: 520px; margin: 0 calc((100vw - min(100% - 32px, 760px)) / -2); }
  .hero-media img { min-height: 520px; }
  .audience-inner { flex-wrap: wrap; padding: 18px 0; gap: 13px 18px; }
  .section { padding: 76px 0; }
  .statement-grid, .section-intro, .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 46px; }
  .statement-media, .statement-media img { min-height: 460px; height: 460px; }
  .section-intro { margin-bottom: 48px; }
  .credential-grid { grid-template-columns: 1fr; }
  .standards-band { grid-template-columns: 1fr 1fr; }
  .standards-heading { grid-column: 1 / -1; }
  .process-list { grid-template-columns: 1fr 1fr; }
  .process-list li:nth-child(2) { border-right: 0; }
  .process-list li { border-bottom: 1px solid var(--rule); }
  .principles-grid { grid-template-columns: 1fr; }
  .principles-media, .principles-media img { min-height: 560px; height: 560px; }
  .principles-panel { padding: 72px max(16px, calc((100vw - min(100% - 32px, 760px)) / 2)); }
  .coverage-grid { grid-template-columns: 1fr; gap: 14px; }
  .contact-copy { max-width: 650px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-contact { grid-column: 1 / -1; justify-items: start; text-align: left; }
}

@media (max-width: 620px) {
  :root { --shell: calc(100% - 28px); }
  .header-inner { min-height: 70px; }
  .site-nav { inset: 70px 0 auto; }
  .brand-copy strong { font-size: 13px; }
  .hero-copy { padding: 58px 0 42px; }
  h1 { font-size: clamp(39px, 12vw, 52px); }
  h2 { font-size: clamp(31px, 9vw, 42px); }
  .hero-lede { font-size: 17px; }
  .hero-actions { align-items: stretch; gap: 18px; }
  .button-primary { width: 100%; }
  .hero-facts { grid-template-columns: 1fr; gap: 14px; }
  .hero-media { min-height: 410px; margin: 0 -14px; }
  .hero-media img { min-height: 410px; object-position: 59% center; }
  .image-tag { top: 14px; }

  .audience-inner { justify-content: flex-start; }
  .audience-inner > span { width: 100%; }
  .section { padding: 60px 0; }
  .statement-media, .statement-media img { min-height: 380px; height: 380px; }
  .statement-media::before { top: -9px; left: -9px; width: 60px; height: 60px; border-width: 4px; }
  .service-row { grid-template-columns: 42px 1fr 20px; gap: 14px; padding: 22px 0; }
  .service-row p { grid-column: 2 / -1; }
  .credential-card { grid-template-columns: 82px 1fr; padding: 20px 16px; }
  .credential-seal { width: 78px; height: 78px; }
  .credential-seal b { font-size: 13px; }
  .standards-band { grid-template-columns: 1fr; }
  .standards-heading { grid-column: auto; }
  .standard-reference { min-height: 112px; }
  .process-list { grid-template-columns: 1fr; }
  .process-list li, .process-list li:not(:first-child) { min-height: auto; padding: 20px 0; border-right: 0; }
  .process-list span { margin-bottom: 22px; }
  .process-list h3 { min-height: 0; }
  .principles-media, .principles-media img { min-height: 400px; height: 400px; }
  .principles-panel { padding: 54px 14px; }
  .principle-list article { padding: 21px 0; }
  .about-copy { padding-top: 24px; }
  .field-row { grid-template-columns: 1fr; }
  .contact-form { padding: 24px 18px; }
  .button-coral { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 38px; }
  .footer-contact { grid-column: auto; }
  .footer-meta { display: grid; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }