:root{
  --bg:#FAFAF8;
  --ink:#181B23;
  --ink-soft:#4A4F5C;
  --line:#E4E2DB;
  --card:#FFFFFF;
  --sign:#1D45C8;        /* UK motorway-sign blue */
  --sign-deep:#12308F;
  --arch:#B8BDC9;
  --go:#0B7A45;          /* primary-route green */
  --amber:#F5B62E;
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,sans-serif;background:var(--bg);color:var(--ink);line-height:1.65;font-size:16px}
h1,h2,h3{font-family:'Archivo',sans-serif;line-height:1.12;letter-spacing:-.01em}
h1{font-size:clamp(2.1rem,5.5vw,3.6rem);font-weight:850;font-stretch:95%}
h2{font-size:clamp(1.5rem,3.4vw,2.2rem);font-weight:800}
h3{font-size:1.12rem;font-weight:700}
h2 em,h1 em{font-style:normal;color:var(--sign)}
a{color:var(--sign);text-decoration:none}
a:hover{text-decoration:underline}
img,svg{max-width:100%;display:block}
.wrap{max-width:1080px;margin:0 auto;padding:0 22px}
.eyebrow{font-family:'Archivo',sans-serif;font-weight:700;font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--sign);margin-bottom:.7rem}
section{padding:60px 0}
section+section{border-top:1px solid var(--line)}
p+p{margin-top:1em}
.lead{font-size:1.08rem;color:var(--ink-soft);max-width:62ch}

/* top strip */
.strip{background:var(--ink);color:#fff;text-align:center;font-size:.82rem;padding:8px 14px}
.strip b{color:var(--amber)}

/* header */
header{background:var(--bg);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.nav{display:flex;align-items:center;gap:22px;padding:14px 0;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;font-family:'Archivo',sans-serif;font-weight:850;font-size:1.2rem;color:var(--ink)}
.logo .mark{width:34px;height:34px;border-radius:9px;background:var(--sign);color:#fff;display:grid;place-items:center;font-size:1.05rem}
.logo small{display:block;font-family:'Inter',sans-serif;font-weight:600;font-size:.58rem;letter-spacing:.12em;color:var(--ink-soft)}
.nav-links{display:flex;gap:18px;font-weight:600;font-size:.9rem;flex-wrap:wrap}
.nav-links a{color:var(--ink)}
.nav-links a.on{color:var(--sign)}
.nav-cta{margin-left:auto;display:flex;gap:10px;flex-wrap:wrap}
.btn{display:inline-block;font-family:'Archivo',sans-serif;font-weight:700;font-size:.92rem;padding:11px 20px;border-radius:10px;border:2px solid transparent;white-space:nowrap}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-solid{background:var(--sign);color:#fff}
.btn-solid:hover{background:var(--sign-deep)}
.btn-ghost{border-color:var(--ink);color:var(--ink)}
.btn-green{background:var(--go);color:#fff}

/* hero */
.hero{position:relative;padding:64px 0 40px;overflow:hidden}
.arch-svg{position:absolute;inset:auto 0 0 0;width:100%;height:auto;pointer-events:none;opacity:.55}
.hero-grid{display:grid;grid-template-columns:1.25fr .85fr;gap:44px;align-items:start;position:relative}
.route-chip{display:inline-flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:7px 16px;font-size:.82rem;font-weight:600;margin-bottom:18px}
.route-chip .dot{width:8px;height:8px;border-radius:50%;background:var(--go)}
.hero .lead{margin-top:16px}
.hero-ctas{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.stats{display:flex;gap:0;margin-top:34px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--card);max-width:520px}
.stat{flex:1;text-align:center;padding:14px 6px}
.stat+.stat{border-left:1px solid var(--line)}
.stat b{font-family:'Archivo',sans-serif;font-size:1.25rem;display:block;color:var(--sign)}
.stat span{font-size:.72rem;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.06em}

/* road-sign quote card */
.sign-card{background:var(--sign);color:#fff;border-radius:18px;padding:26px;box-shadow:0 18px 40px rgba(18,48,143,.22)}
.sign-card h3{color:#fff;font-size:1.25rem;display:flex;align-items:center;gap:10px}
.sign-card .sub{font-size:.82rem;opacity:.85;margin:4px 0 16px}
.fare{display:flex;justify-content:space-between;align-items:baseline;padding:11px 2px;border-bottom:1px solid rgba(255,255,255,.22);font-size:.94rem}
.fare:last-of-type{border-bottom:0}
.fare b{font-family:'Archivo',sans-serif;font-size:1.05rem;color:var(--amber)}
.sign-card .btn{width:100%;text-align:center;margin-top:16px;background:#fff;color:var(--sign-deep)}
.sign-card .call{display:block;text-align:center;font-size:.82rem;margin-top:12px;color:#fff;opacity:.9}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.badge{background:rgba(255,255,255,.14);border-radius:8px;padding:5px 10px;font-size:.74rem;font-weight:600}

/* answer box (AEO) */
.answer-box{background:var(--card);border:1px solid var(--line);border-left:5px solid var(--sign);border-radius:var(--radius);padding:22px 24px;margin-top:26px;max-width:74ch}
.answer-box p{font-size:.98rem;color:var(--ink-soft)}
.answer-box b{color:var(--ink)}

/* tables */
table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;font-size:.94rem;margin-top:26px}
th,td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line)}
th{font-family:'Archivo',sans-serif;font-size:.76rem;text-transform:uppercase;letter-spacing:.08em;background:#F3F2ED;color:var(--ink-soft)}
tr:last-child td{border-bottom:0}
td b{font-family:'Archivo',sans-serif;color:var(--sign)}
.tbl-note{font-size:.8rem;color:var(--ink-soft);margin-top:10px}

/* cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px;margin-top:30px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.card h3{margin-bottom:10px}
.card p{font-size:.92rem;color:var(--ink-soft)}
.card .tag{display:inline-block;font-family:'Archivo',sans-serif;font-size:.68rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;background:#EEF1FB;color:var(--sign);border-radius:6px;padding:4px 9px;margin-bottom:12px}

/* timeline */
.steps{counter-reset:s;display:grid;gap:0;margin-top:30px;border-left:2px solid var(--line);padding-left:0}
.step{position:relative;padding:0 0 26px 34px}
.step::before{counter-increment:s;content:counter(s);position:absolute;left:-17px;top:0;width:32px;height:32px;border-radius:50%;background:var(--sign);color:#fff;font-family:'Archivo',sans-serif;font-weight:800;display:grid;place-items:center;font-size:.88rem}
.step h3{margin-bottom:5px}
.step p{font-size:.93rem;color:var(--ink-soft)}

/* faq */
details{background:var(--card);border:1px solid var(--line);border-radius:12px;margin-top:12px;overflow:hidden}
summary{cursor:pointer;padding:17px 20px;font-family:'Archivo',sans-serif;font-weight:700;font-size:1rem;list-style:none;display:flex;justify-content:space-between;gap:14px}
summary::after{content:"+";color:var(--sign);font-size:1.3rem;line-height:1}
details[open] summary::after{content:"–"}
details p{padding:0 20px 18px;color:var(--ink-soft);font-size:.94rem}

/* cta band */
.cta-band{background:var(--ink);color:#fff;border-radius:20px;padding:44px 34px;text-align:center;position:relative;overflow:hidden}
.cta-band h2{color:#fff}
.cta-band p{color:#C9CCD6;margin:10px auto 24px;max-width:52ch}
.cta-band .arch2{position:absolute;inset:auto 0 -6px 0;opacity:.28}

/* footer */
footer{background:#F2F1EC;border-top:1px solid var(--line);padding:46px 0 30px;font-size:.88rem;color:var(--ink-soft)}
.f-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
.f-grid h4{font-family:'Archivo',sans-serif;font-size:.78rem;text-transform:uppercase;letter-spacing:.1em;color:var(--ink);margin-bottom:12px}
.f-grid ul{list-style:none}
.f-grid li{margin-bottom:8px}
.f-grid a{color:var(--ink-soft)}
.f-bottom{border-top:1px solid var(--line);margin-top:34px;padding-top:20px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:.8rem}

@media(max-width:860px){
  .hero-grid{grid-template-columns:1fr}
  .f-grid{grid-template-columns:1fr 1fr}
  .nav-cta{margin-left:0}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .btn:hover{transform:none}
}
.callout.takeaways,.callout.takeaways p,.callout.takeaways li{color:#14213d !important}