:root {
  --bg:#0c1218;
  --bg-soft:#111a22;
  --panel:#121f2a;
  --panel-2:#172634;
  --paper:#f6f3ed;
  --paper-2:#fffdf8;
  --paper-3:#ece7dd;
  --ink:#12202b;
  --ink-2:#2b3f4e;
  --muted:#687988;
  --line:#d9dedf;
  --line-strong:#c7cfd2;
  --accent:#d7ff66;
  --accent-2:#8ef2d1;
  --accent-dark:#112f24;
  --danger:#ca5c56;
  --warning:#c98a30;
  --shadow-xl:0 30px 70px rgba(5,16,25,.18);
  --shadow-lg:0 18px 50px rgba(5,16,25,.12);
  --shadow-md:0 12px 32px rgba(5,16,25,.08);
  --radius-xl:28px;
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:12px;
}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{scroll-padding-top:92px}
body.design-v3{
  margin:0;
  background:
    radial-gradient(circle at 18% -5%, rgba(142,242,209,.09), transparent 28%),
    radial-gradient(circle at 88% 2%, rgba(215,255,102,.12), transparent 18%),
    linear-gradient(180deg,#0d151b 0 640px, var(--paper) 640px 100%);
  color:var(--ink);
  font-family:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  font-size:15px;
  line-height:1.55;
}
body.design-v3::before{
  content:"";position:fixed;inset:0;pointer-events:none;opacity:.035;z-index:0;
  background-image:radial-gradient(#fff 0.7px,transparent 0.7px);
  background-size:18px 18px;
  mix-blend-mode:soft-light;
}
body.design-v3 *{position:relative;z-index:1}
body.design-v3 h1,body.design-v3 h2,body.design-v3 h3,body.design-v3 h4{
  margin:0;letter-spacing:-.045em;font-weight:820;line-height:1.04;
}
body.design-v3 p{margin:0;color:inherit}
body.design-v3 a,body.design-v3 button{transition:all .22s ease}
body.design-v3 :focus-visible{outline:2px solid #1aa78f;outline-offset:3px}
body.design-v3 .shell{width:min(1280px, calc(100% - 48px))}
body.design-v3 .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.72rem;letter-spacing:.18em;font-weight:800;text-transform:uppercase}
body.design-v3 .eyebrow::before{content:"";width:8px;height:8px;border-radius:999px;background:currentColor;opacity:.75}
body.design-v3 .eyebrow.green{color:#4f7f66}
body.design-v3 .eyebrow.muted{color:#778899}
body.design-v3 .eyebrow.dark{color:#d8f59a}
.center{text-align:center}

/* Header */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,19,26,.78)!important;
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid rgba(235,243,246,.09);
  box-shadow:none!important;
}
.header-row{min-height:82px;display:flex;align-items:center;gap:22px}
.brand{display:inline-flex;align-items:center;gap:12px;color:#eef3ef;text-decoration:none;font-size:1.72rem;font-weight:860;letter-spacing:-.07em}
.brand:hover{color:#fff}
.brand-icon{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;color:#102018;background:linear-gradient(145deg,var(--accent),#b9ec61);box-shadow:inset 0 1px 0 rgba(255,255,255,.5),0 12px 22px rgba(0,0,0,.22);transform:none;margin-right:0}
.brand-icon svg{width:22px;height:22px}
.brand-accent{color:#eef3ef;margin-left:-6px}
.brand-dot{color:var(--accent);margin-left:-5px}
.brand-signature{display:block;margin-left:12px;padding-left:14px;border-left:1px solid rgba(255,255,255,.15);max-width:92px;color:#a6b3bc;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.58rem;line-height:1.45;font-weight:700;letter-spacing:.14em}
.nav-links{display:flex;gap:28px;flex:1;justify-content:center}
.nav-links a{color:#bfd0d7;text-decoration:none;font-size:.88rem;font-weight:720;letter-spacing:-.01em;padding:8px 0}
.nav-links a:hover{color:#fff;transform:translateY(-1px)}
.header-cta{white-space:nowrap;display:inline-flex;align-items:center;gap:10px;min-height:46px;padding:0 18px;border-radius:14px;text-decoration:none;color:#0f1917!important;background:linear-gradient(135deg,var(--accent),#dff790);font-size:.78rem;font-weight:900;letter-spacing:.1em;box-shadow:0 16px 26px rgba(0,0,0,.22)}
.header-cta:hover{transform:translateY(-2px);box-shadow:0 20px 34px rgba(0,0,0,.28)}
.header-source{display:none!important}
.header-right{display:flex;align-items:center;gap:14px}
.lang-switch{display:inline-flex;gap:4px;padding:4px;border-radius:14px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12)}
.lang-switch a{padding:8px 11px;border-radius:10px;color:#9fb1bc;text-decoration:none;font-size:.74rem;font-weight:820}
.lang-switch a.current{background:#f6f4ec;color:#18232e;box-shadow:0 8px 18px rgba(3,12,19,.22)}

/* Hero */
body.design-v3 .hero{
  background:transparent!important;
  color:#f3f7f4;
  padding:40px 0 146px!important;
  overflow:hidden;
}
.hero-grid{display:grid!important;grid-template-columns:minmax(0,.88fr) minmax(0,1.12fr);gap:34px!important;align-items:start;min-height:560px}
.hero-copy{padding:26px 0 0}
.hero-prelude{display:flex;align-items:center;gap:11px;color:#9eb1bc;font-family:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;font-size:.68rem;font-weight:760;letter-spacing:.12em;text-transform:uppercase}
.prelude-line{width:9px;height:9px;border-radius:999px;background:var(--accent)}
.prelude-issue{margin-left:auto;color:#7c919f}
.hero-copy h1{font-size:clamp(3.7rem,6.2vw,6.2rem)!important;max-width:650px;color:#f5f8f5;margin:22px 0 20px!important;letter-spacing:-.065em!important}
.hero-copy h1 em{display:inline-block;font-style:normal;color:var(--accent);font-family:Georgia, 'Times New Roman', serif;font-weight:600;letter-spacing:-.06em}
.hero-copy h1 em::after{display:none}
.hero-subline{max-width:560px;font-size:1.18rem!important;line-height:1.7!important;color:#b4c1c9!important;margin:0 0 28px!important}
.hero-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:26px}
.hero-action{display:inline-flex;align-items:center;gap:14px;justify-content:space-between;min-height:58px;padding:0 12px 0 22px;border-radius:18px;background:linear-gradient(135deg,var(--accent),#ecf8ba);color:#17231d!important;text-decoration:none;font-size:.95rem;font-weight:900;box-shadow:0 18px 30px rgba(0,0,0,.24)}
.hero-action:hover{transform:translateY(-2px)}
.hero-action-icon{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:#13211c;color:var(--accent);font-size:1.3rem}
.hero-text-link{display:inline-flex;align-items:center;gap:8px;color:#dbe6ea;text-decoration:none;font-weight:700;font-size:.9rem;padding:14px 2px;border-bottom:1px solid rgba(255,255,255,.16)}
.hero-text-link:hover{color:#fff;border-color:rgba(255,255,255,.35)}
.hero-byline{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;max-width:720px;border:none;padding:0;margin-top:10px}
.hero-byline-icon{display:none}
.hero-byline span:last-child{display:none}
.hero-byline::before,.hero-byline::after{display:none}
.hero-byline > span{display:block}
.hero-byline{counter-reset:none}
.hero-byline > *{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09);border-radius:16px;padding:14px 14px 14px 16px;color:#d7e1e6;font-size:.82rem;line-height:1.45;box-shadow:inset 0 1px 0 rgba(255,255,255,.04)}
.hero-byline{font-size:0}
.hero-byline::after{display:none}
.hero-byline:has(*){}
.hero-byline>*:nth-child(1)::before{content:"Exact model";display:block;font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:#8ca1ad;font-weight:800;margin-bottom:4px}
.hero-byline>*:nth-child(2)::before{content:"Primary sources";display:block;font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:#8ca1ad;font-weight:800;margin-bottom:4px}
.hero-byline>*:nth-child(3)::before{content:"Airline rules";display:block;font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:#8ca1ad;font-weight:800;margin-bottom:4px}
.hero-visual{
  min-height:568px;
  background:
    radial-gradient(circle at 72% 26%, rgba(142,242,209,.18), transparent 24%),
    linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.02)),
    linear-gradient(180deg,#13212c,#0d171f);
  border:1px solid rgba(255,255,255,.12);
  border-radius:30px;
  overflow:hidden;
  box-shadow:var(--shadow-xl), inset 0 1px 0 rgba(255,255,255,.08);
  position:relative;
  display:grid;grid-template-rows:auto 1fr auto;
}
.hero-visual::before{content:"";position:absolute;inset:18px;border-radius:22px;border:1px solid rgba(255,255,255,.06);pointer-events:none}
.hero-visual::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);background-size:28px 28px;mask-image:linear-gradient(180deg, rgba(0,0,0,.45), rgba(0,0,0,.08));pointer-events:none}
.visual-topline,.visual-bottomline{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:18px 22px;color:#b3c5ce;font-size:.68rem;font-family:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;letter-spacing:.11em;font-weight:760;text-transform:uppercase;z-index:2}
.visual-bottomline{padding-top:10px;border-top:1px solid rgba(255,255,255,.08);color:#9fb2ba}
.hero-visual img{display:block;width:100%;height:100%;max-height:492px;object-fit:cover;object-position:center}
.index-cross{color:var(--accent)}
.hero-edge{display:none}

/* Checker */
body.design-v3 .checker-shell{margin-top:-110px;z-index:5}
body.design-v3 .checker-card{
  background:linear-gradient(180deg,#fffdf9 0%,#f9f7f1 100%);
  border:1px solid rgba(210,218,221,.9);
  border-radius:32px;
  box-shadow:0 36px 80px rgba(7,18,25,.18), 0 10px 30px rgba(7,18,25,.08);
  overflow:hidden;
}
.checker-heading{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto auto;
  align-items:end;
  gap:18px;
  padding:30px 34px 28px;
  background:
    linear-gradient(140deg, rgba(17,31,42,.98), rgba(22,41,55,.98)),
    linear-gradient(180deg,#fff,#fff);
  color:#eff5f7;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.checker-heading .eyebrow{color:#97e1cc}
.checker-heading h2{font-size:clamp(1.8rem,2.4vw,2.75rem)!important;color:#f4f7f9;line-height:1.04;margin:8px 0 10px}
.checker-heading p{max-width:900px;color:#b4c1c9;font-size:.98rem!important;line-height:1.65!important}
.checker-trust{display:inline-flex;align-items:center;gap:8px;margin:0;padding:11px 14px!important;border-radius:14px!important;border:1px solid rgba(255,255,255,.14)!important;background:rgba(255,255,255,.06)!important;color:#d9e9ee!important;font-size:.76rem!important;font-weight:700!important;white-space:nowrap}
.checker-sequence{position:static;color:rgba(255,255,255,.14);font-size:3.2rem;font-weight:900;line-height:1;align-self:start;justify-self:end}
.checker-sequence span{font-size:2rem}
#lookup-form{padding:28px 34px 34px}
.form-main{display:grid;grid-template-columns:minmax(0,1.38fr) minmax(280px,.8fr);gap:18px}
body.design-v3 .field label, body.design-v3 .calc-inputs label{display:block;margin:0 0 10px;color:#213240;font-size:.8rem;font-weight:860;letter-spacing:.01em}
body.design-v3 .field input, body.design-v3 .field select{
  width:100%;min-height:62px;background:#fff!important;color:#162734;font-size:1rem;font-weight:700;
  border:1px solid #d9dfe2!important;border-radius:16px!important;box-shadow:0 3px 10px rgba(9,20,28,.03)!important
}
body.design-v3 .field input:focus, body.design-v3 .field select:focus{border-color:#73bca8!important;box-shadow:0 0 0 4px rgba(129,221,190,.18)!important}
body.design-v3 .field input::placeholder{color:#95a4af}
.model-control input{padding-left:52px!important;padding-right:185px!important}
.field-start{top:20px;left:18px;color:#6d8190}
.scan-button{height:46px;right:8px;top:8px;border:none!important;border-radius:14px!important;background:#1b2c39!important;color:#edfaf7!important;padding:0 14px;box-shadow:0 10px 18px rgba(6,15,24,.16)!important}
.scan-button:hover{background:#203645!important;transform:translateY(-1px)}
.suggestions{border-radius:18px!important;border:1px solid #d6dee2!important;box-shadow:var(--shadow-lg)!important}
.quick-picks{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.quick-picks>span{display:flex;align-items:center;font-size:.68rem;letter-spacing:.12em;font-weight:820;color:#6d7c88;text-transform:uppercase;flex:0 0 100%}
.quick-picks button{border:1px solid #dae2e6!important;background:#f3f6f8!important;border-radius:999px!important;color:#2f4250!important;padding:8px 12px;font-weight:760}
.quick-picks button:hover{background:#e6eef1!important;border-color:#b8c6ce!important}
.find-model{margin-top:12px;border:1px solid #e0e6ea;border-radius:18px;background:#fbfcfd}
.find-model summary{padding:14px 16px;font-weight:760;color:#233542}
.find-model p{padding:0 16px;color:#61727f}
.model-label-example{margin:0 16px 16px;border-radius:16px;background:linear-gradient(135deg,#172632,#243847);color:#eef4f6;border:none;box-shadow:var(--shadow-md)}
.field-hint{margin-top:10px;color:#667986;font-size:.77rem}
.route-details,.advanced{margin-top:16px;border:1px solid #dee5e8;border-radius:22px;background:#fcfdfd;overflow:hidden}
.route-details>summary,.advanced summary{padding:18px 18px;font-weight:800;color:#1b2d39}
.route-details .route-grid,.advanced .advanced-content{padding:0 18px 18px}
.route-details .route-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 16px}
.quantity-row{margin-top:16px;padding:16px 18px;border-radius:18px;background:#f5f7f8;border:1px solid #e1e7ea}
.quantity-stepper{background:#fff;border-radius:16px;overflow:hidden;border:1px solid #d8dee1}
.quantity-stepper button,.quantity-stepper input{height:46px}
.advanced-note{margin-top:12px;color:#667885;font-size:.78rem;line-height:1.6}
.form-bottom{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-top:20px;flex-wrap:wrap}
.form-safe{display:inline-flex;align-items:center;gap:10px;color:#5f7380;font-weight:700;font-size:.84rem}
.safe-icon{display:grid;place-items:center;width:28px;height:28px;border-radius:999px;background:#eaf7f1;color:#1c8a67}
.primary-button{display:inline-flex;align-items:center;gap:10px;justify-content:center;min-height:56px;padding:0 24px;border:none;border-radius:16px;background:linear-gradient(135deg,#12212c,#1a3141);color:#f1f7f8;box-shadow:0 18px 34px rgba(8,19,28,.18);font-size:.95rem;font-weight:850;letter-spacing:-.01em}
.primary-button:hover{transform:translateY(-2px);box-shadow:0 22px 38px rgba(8,19,28,.22)}
.primary-button.inline{text-decoration:none}

/* Result */
.result-section{margin-top:28px;border-top:1px solid #e0e6ea;padding-top:24px;scroll-margin-top:100px}
.result-banner{border-radius:24px;overflow:hidden;box-shadow:var(--shadow-md)}
.result-priority{border-radius:20px;background:linear-gradient(135deg,#162633,#1f3443);box-shadow:0 20px 36px rgba(8,17,26,.12)}
.priority-number{background:var(--accent);color:#10211a;border-radius:12px}
.result-share-panel{background:linear-gradient(135deg,#0f1922,#152533 65%,#133d35);border-radius:24px;box-shadow:var(--shadow-lg)}
.share-primary{background:linear-gradient(135deg,var(--accent),#eef8bf);color:#15211b;border:none}
.share-secondary{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16)}

/* Mid strip */
.dossier-strip{
  display:grid;grid-template-columns:1.15fr repeat(2,.6fr) .9fr;gap:14px;align-items:stretch;
  margin-top:34px;padding:0
}
.dossier-strip > *{border-radius:22px;background:#fbfaf6;border:1px solid #dce2e3;box-shadow:var(--shadow-md);padding:20px 22px}
.dossier-lead{display:flex;align-items:center;gap:14px;color:#1c2c36;font-weight:800;letter-spacing:-.01em;font-size:1rem}
.dossier-glyph{display:grid;place-items:center;width:46px;height:46px;border-radius:14px;background:linear-gradient(135deg,#172735,#22394b);color:var(--accent);font-size:1.35rem;box-shadow:0 12px 18px rgba(6,15,24,.12)}
.dossier-stat{display:grid;place-items:center;text-align:center}
.dossier-stat strong{display:block;font-size:2.2rem;line-height:1;color:#10202c}
.dossier-stat span{display:block;margin-top:8px;color:#68808c;font-size:.75rem;letter-spacing:.14em;font-weight:820}
.dossier-foot span{display:block;color:#798a97;font-size:.75rem;letter-spacing:.12em;font-weight:820;text-transform:uppercase}
.dossier-foot strong{display:block;margin-top:10px;font-size:1.55rem;color:#12202c}
.dossier-foot small{display:block;margin-top:8px;color:#6f808c;line-height:1.5}
.stale-banner{margin-top:18px;padding:16px 18px;border-radius:18px;background:#fff8e9;border:1px solid #f0e0b8;color:#7b5f1b}

/* Section blocks */
.section-block{padding:88px 0 0}
.section-header{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:28px}
.section-header h2,.section-intro h2{font-size:clamp(2rem,3vw,3.3rem)}
.section-header p,.section-intro p{max-width:730px;color:#6b7b86;font-size:1rem;line-height:1.7;margin-top:10px}
.counter-tile{min-width:180px;border-radius:24px;padding:20px;background:linear-gradient(135deg,#12212c,#1c3443);color:#eff6f8;box-shadow:var(--shadow-md)}
.counter-tile strong{display:block;font-size:2.2rem;line-height:1}
.counter-tile span{display:block;margin-top:6px;color:#a8bac4;font-size:.82rem}
.flight-graphic{display:inline-flex;align-items:center;gap:10px;padding:16px 18px;border-radius:18px;background:#fffdf8;border:1px solid #dde3e5;color:#60717d;box-shadow:var(--shadow-md)}
.text-arrow{display:inline-flex;align-items:center;gap:8px;color:#1d3240;text-decoration:none;font-weight:820}
.text-arrow:hover{transform:translateX(2px)}

/* Quick section */
.quick-section{padding-top:84px}
.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:28px}
.quick-card{padding:28px;border-radius:26px;background:#fffdf9;border:1px solid #dde4e7;box-shadow:var(--shadow-md);overflow:hidden}
.quick-card:nth-child(2){background:linear-gradient(180deg,#162632,#1c3341);color:#eef6f8;border-color:#213848}
.quick-card:nth-child(2) p,.quick-card:nth-child(2) h3,.quick-card:nth-child(2) .quick-number{color:inherit}
.quick-card:nth-child(2) .quick-icon{background:rgba(255,255,255,.12);color:var(--accent)}
.quick-icon{width:54px;height:54px;border-radius:18px;display:grid;place-items:center;background:#edf7f3;color:#237c61;font-size:1.3rem}
.quick-number{display:block;margin-top:18px;color:#8fa1ad;font-size:.78rem;letter-spacing:.15em;font-weight:860}
.quick-card h3{margin-top:12px;font-size:1.45rem;color:#14212d}
.quick-card p{margin-top:10px;color:#647884;line-height:1.7}

/* Registry and airline cards */
.registry-toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:18px;flex-wrap:wrap}
.filter-input{display:flex;align-items:center;gap:10px;min-width:min(100%,440px);padding:0 16px;border-radius:18px;background:#fff;border:1px solid #d8e0e3;box-shadow:var(--shadow-md)}
.filter-input input{flex:1;border:none;background:transparent;min-height:54px;font-size:.95rem;color:#18303d;outline:none}
.registry-status{display:inline-flex;align-items:center;gap:9px;color:#6b7f8d;font-size:.82rem;font-weight:760}
.snapshot-dot{width:9px;height:9px;border-radius:999px;background:#68bba4;box-shadow:0 0 0 4px rgba(104,187,164,.15)}
.model-grid,.airline-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.model-card,.airline-card,.side-box,.article-card,.article-side .muted-box,.article-side .side-box{border-radius:24px!important;border:1px solid #dde4e7!important;background:#fffdf9!important;box-shadow:var(--shadow-md)!important}
.model-card,.airline-card{padding:22px!important}
.model-card:hover,.airline-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)!important}
.outline-button{display:inline-flex;align-items:center;gap:10px;justify-content:center;min-height:54px;padding:0 18px;border-radius:999px;border:1px solid #d4dce0;background:#fffdf8;color:#1a3140;font-weight:820;box-shadow:var(--shadow-md)}
.outline-button:hover{transform:translateY(-2px)}

/* Calculator */
.calculator-section .calc-grid{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:20px;align-items:stretch}
.calc-copy,.calculator-card{border-radius:28px}
.calc-copy{padding:32px;background:linear-gradient(135deg,#12202c,#1b3342);color:#eff5f7;box-shadow:var(--shadow-lg)}
.calc-copy h2{font-size:clamp(2rem,3vw,3.1rem);margin-top:12px;color:#fff}
.calc-copy p{margin-top:12px;color:#bdd0d8;line-height:1.75}
.formula-chip{display:inline-flex;align-items:center;gap:12px;margin-top:18px;padding:12px 16px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1);font-weight:800;color:#f3f7f8}
.formula-chip span{color:var(--accent)}
.calc-disclaimer{margin-top:14px!important;color:#a9bbc5!important}
.calculator-card{padding:28px;background:#fffdf8;border:1px solid #dce3e6;box-shadow:var(--shadow-lg)}
.calc-inputs{display:grid;grid-template-columns:1fr auto 1fr;gap:14px;align-items:end}
.calc-cross{display:grid;place-items:center;font-size:2rem;color:#8aa0ac;padding-bottom:10px}
.calculator-card input{margin-top:10px;min-height:58px;border-radius:16px;border:1px solid #d8dfe2;background:#fff;color:#18303d;font-size:1rem;font-weight:800;padding:0 16px}
.calc-output{margin-top:22px;padding:24px;border-radius:24px;background:linear-gradient(180deg,#f7fafb,#f0f5f7);border:1px solid #dde5e8}
.calc-output-label{font-size:.74rem;letter-spacing:.14em;font-weight:840;color:#748795}
.calc-big{display:flex;align-items:end;gap:8px;margin-top:12px;color:#12202b}
.calc-big strong{font-size:3.8rem;line-height:.92;letter-spacing:-.05em}
.calc-big span{font-size:1.1rem;font-weight:840;color:#5b7280;margin-bottom:8px}
.calc-gauge{position:relative;height:14px;border-radius:999px;background:#e2e9eb;margin:18px 0 10px;overflow:hidden}
#calc-bar{position:absolute;left:0;top:0;bottom:0;border-radius:999px;background:linear-gradient(90deg,#7fe4c0,#d7ff66)}
.gauge-line{position:absolute;top:-4px;width:2px;height:22px;background:#9fb0b8}
.line100{left:62.5%}
.line160{left:100%}
.calc-legend,.calc-message{color:#69808c}

/* Updates and FAQ */
.timeline{display:grid;gap:14px}
.timeline-item,.faq-list details{border-radius:22px;background:#fffdf8;border:1px solid #dde3e6;box-shadow:var(--shadow-md)}
.timeline-item{padding:20px 22px}
.faq-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:20px;align-items:start}
.faq-graphic{margin-top:18px;display:flex;align-items:center;gap:14px;color:#14212d}
.faq-graphic div{width:72px;height:72px;border-radius:24px;background:linear-gradient(135deg,#12212c,#1b3341);display:grid;place-items:center;color:var(--accent);font-size:2rem;box-shadow:var(--shadow-md)}
.faq-list details{padding:18px 20px;margin-bottom:12px}
.faq-list summary{display:flex;align-items:center;justify-content:space-between;gap:12px;cursor:pointer;font-size:1rem;font-weight:780;color:#1a2c39;list-style:none}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list details p{margin-top:12px;color:#6a7c89;line-height:1.7}

/* Closing */
.closing-section{padding:88px 0 90px}
.closing-panel{display:grid;grid-template-columns:1.1fr .9fr;gap:20px;padding:34px;border-radius:34px;background:linear-gradient(135deg,#13212c,#1d3441 65%,#1a4b41);color:#eff4f5;box-shadow:var(--shadow-xl);overflow:hidden}
.closing-sparks{position:absolute;right:26px;top:14px;font-size:2rem;color:rgba(215,255,102,.5)}
.closing-panel h2{font-size:clamp(2rem,3vw,3.4rem);max-width:620px;color:#fff;margin-top:12px}
.closing-panel p{margin-top:12px;color:#bfd0d8;line-height:1.75;max-width:640px}
.closing-affiliate{padding:24px;border-radius:26px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12)}
.affiliate-icon{display:grid;place-items:center;width:54px;height:54px;border-radius:18px;background:rgba(255,255,255,.08);color:var(--accent);font-size:1.35rem}
.closing-affiliate h3{margin-top:16px;font-size:1.45rem;color:#fff}
.closing-affiliate p{margin-top:10px}
.closing-affiliate a{display:inline-flex;align-items:center;gap:8px;margin-top:14px;color:var(--accent);font-weight:820;text-decoration:none}
.closing-affiliate small{display:block;margin-top:14px;color:#9fb2bd;line-height:1.5}

/* Footer */
.footer{background:#0d151b;color:#a4b4bd;border-top:1px solid rgba(255,255,255,.06)}
.footer-inner{display:grid;grid-template-columns:1.1fr auto;gap:20px;padding:34px 0}
.footer-brand{display:flex;align-items:center;gap:8px;font-size:1.35rem;font-weight:850;color:#f2f6f4}
.footer .brand-icon.small{width:34px;height:34px;border-radius:11px;font-size:1rem;margin-right:0}
.footer p{margin-top:10px;max-width:440px;color:#9cb0ba;line-height:1.7}
.footer-links{display:flex;gap:18px;flex-wrap:wrap;justify-content:flex-end;align-content:start}
.footer-links a{color:#dbe4e8;text-decoration:none;font-weight:720}
.footer-line{grid-column:1/-1;display:flex;justify-content:space-between;gap:16px;padding-top:18px;border-top:1px solid rgba(255,255,255,.08);font-size:.8rem;color:#89a0ab}
.toast{position:fixed;right:18px;bottom:18px;padding:12px 16px;border-radius:14px;background:#13212c;color:#eef4f6;box-shadow:var(--shadow-lg)}

/* Article pages */
.article-page{padding:16px 0 84px}
.article-hero{padding:26px 0 34px;color:#eef4f6}
.article-hero .shell{padding:30px;border-radius:28px;background:linear-gradient(135deg,#12202c,#1b3341);box-shadow:var(--shadow-lg)}
.article-hero h1{margin-top:12px;font-size:clamp(2.2rem,4vw,4rem);color:#fff}
.article-hero p{margin-top:12px;color:#bdd0d8;max-width:860px;line-height:1.7}
.article-back{display:inline-flex;align-items:center;gap:8px;margin-top:18px;color:var(--accent);text-decoration:none;font-weight:820}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:20px;margin-top:22px}
.article-card{padding:28px}
.article-card h2{margin-top:26px;font-size:1.55rem;color:#152532}
.article-card p{margin-top:12px;color:#667885;line-height:1.75}
.article-kpis{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.article-kpis>div{padding:18px;border-radius:18px;background:linear-gradient(180deg,#f7fafb,#eef3f5);border:1px solid #dde4e7}
.article-kpis small{display:block;color:#7b8f9c;font-size:.75rem;font-weight:800;text-transform:uppercase;letter-spacing:.11em}
.article-kpis strong{display:block;margin-top:8px;color:#13232f;font-size:1rem;line-height:1.4}
.source-list{display:grid;gap:10px;padding:0;list-style:none;margin:16px 0 0}
.source-list li{padding:16px;border-radius:16px;background:#f7fafb;border:1px solid #e0e6e9}
.source-list a{color:#143040;text-decoration:none;font-weight:780}
.source-list small{display:block;margin-top:6px;color:#6e818f}
.related-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.related-list a{display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:999px;background:#f4f8fa;border:1px solid #d9e1e5;color:#1d3443;text-decoration:none;font-weight:760}
.article-side{display:grid;gap:16px;align-self:start}
.side-box{padding:22px}
.side-box h3{font-size:1.25rem;color:#152532}
.side-box p{margin-top:10px;color:#677a87;line-height:1.7}

/* Utility compatibility */
.muted-box{background:#f5f8fa!important}
.recall-meta-note,.result-fineprint,.calc-message{font-size:.8rem;line-height:1.6}
.model-specific-hint{padding:15px 17px;margin:14px 0 10px;background:#fff7ea;border:1px solid #f1dfbe;border-radius:16px;color:#6e4b13;font-size:.79rem;line-height:1.58}
.model-specific-hint a{color:#0b7865;font-weight:860;text-decoration:underline;text-underline-offset:3px}

/* Responsive */
@media (max-width:1120px){
  body.design-v3 .shell{width:min(1280px, calc(100% - 32px))}
  .hero-grid{grid-template-columns:1fr;gap:22px;min-height:auto}
  .hero-copy h1{max-width:780px}
  .hero-visual{min-height:480px}
  .checker-heading{grid-template-columns:1fr auto;align-items:start}
  .checker-sequence{grid-column:2;grid-row:1 / span 2}
  .dossier-strip{grid-template-columns:1fr 1fr}
  .quick-grid,.model-grid,.airline-grid,.calculator-section .calc-grid,.faq-grid,.closing-panel,.article-layout{grid-template-columns:1fr 1fr}
  .closing-panel>div:first-of-type{grid-column:1/-1}
}
@media (max-width:880px){
  .nav-links{display:none}
  .brand-signature{display:none}
  body.design-v3 .hero{padding:24px 0 124px!important}
  .hero-copy{padding-top:14px}
  .hero-copy h1{font-size:clamp(3rem,11vw,4.8rem)!important}
  .hero-subline{font-size:1.02rem!important}
  .hero-byline{grid-template-columns:1fr}
  body.design-v3 .checker-shell{margin-top:-88px}
  .checker-heading{grid-template-columns:1fr;gap:14px}
  .checker-sequence{display:none}
  #lookup-form,.checker-heading{padding-left:22px;padding-right:22px}
  .form-main,.route-details .route-grid,.quick-grid,.model-grid,.airline-grid,.calculator-section .calc-grid,.faq-grid,.closing-panel,.article-layout,.footer-inner{grid-template-columns:1fr}
  .dossier-strip{grid-template-columns:1fr}
  .article-side{grid-row:1}
  .footer-links{justify-content:flex-start}
  .footer-line{display:block}
}
@media (max-width:640px){
  body.design-v3 .shell{width:min(1280px, calc(100% - 20px))}
  .flight-graphic{display:none}
  .site-header{background:rgba(11,19,26,.9)!important}
  .header-row{min-height:72px;gap:12px;flex-wrap:wrap;padding:12px 0}
  .brand{font-size:1.45rem}
  .header-cta{order:3;flex:1;justify-content:center;width:100%}
  .header-right{margin-left:auto}
  .lang-switch a{padding:7px 10px}
  .hero-copy h1{font-size:clamp(2.45rem,12vw,3.6rem)!important;margin-top:16px!important}
  .hero-subline{font-size:.96rem!important;line-height:1.6!important}
  .hero-actions{gap:10px}
  .hero-action{width:100%;justify-content:space-between;padding-left:18px}
  .hero-text-link{padding-top:6px;padding-bottom:6px}
  .hero-visual{min-height:360px;border-radius:24px}
  .visual-topline,.visual-bottomline{padding:14px 16px;font-size:.6rem}
  body.design-v3 .checker-shell{margin-top:-70px}
  body.design-v3 .checker-card{border-radius:24px}
  .checker-heading h2{font-size:1.65rem!important}
  .checker-heading p{font-size:.9rem!important}
  #lookup-form{padding:20px}
  .model-control input{padding-right:18px!important}
  .scan-button{position:static;display:flex;width:100%;justify-content:center;margin-top:10px;height:48px}
  .model-control{display:block}
  .field-start{top:20px}
  .route-details>summary,.advanced summary{padding:15px 16px}
  .route-details .route-grid,.advanced .advanced-content{padding:0 16px 16px}
  .quantity-row{padding:14px}
  .quantity-row,.form-bottom{display:block}
  .quantity-field{margin-top:12px}
  .form-bottom .primary-button{width:100%;margin-top:14px}
  .section-block,.quick-section,.closing-section{padding-top:64px}
  .section-header h2,.section-intro h2,.calc-copy h2,.closing-panel h2{font-size:2rem}
  .counter-tile{min-width:0}
  .calc-inputs{grid-template-columns:1fr;gap:10px}
  .calc-cross{padding:0;line-height:1}
  .calculator-card,.calc-copy,.quick-card,.closing-panel,.article-hero .shell,.article-card,.side-box{padding:20px}
  .result-share-panel{grid-template-columns:1fr;gap:14px;padding:18px}
  .share-buttons{min-width:0;display:grid;grid-template-columns:1fr 1fr;gap:8px}
  .article-kpis{grid-template-columns:1fr}
}
@media (max-width:420px){
  .header-row{gap:10px}
  .hero-visual{min-height:320px}
  .share-buttons{grid-template-columns:1fr}
  .hero-byline>*{padding:12px 13px}
  .quick-card h3{font-size:1.28rem}
}
@media (prefers-reduced-motion:reduce){
  body.design-v3 a, body.design-v3 button{transition:none}
}
@media print{
  .site-header,.hero,.quick-section,.recalls-section,.airlines-section,.calculator-section,.updates-section,.faq-section,.closing-section,.footer,.result-share-panel,.result-actions,.stale-banner{display:none!important}
  body,.checker-card,.article-hero .shell,.article-card,.side-box{background:#fff!important;color:#000!important;box-shadow:none!important}
}