/* ============================================================================
   REECO /learn — shared styles (prototype)
   Reuses the brand tokens from the main reeco-landing mockup (Zing! Brand ID v4)
   so these pages read as part of the same site. Self-contained, no build step.
   ============================================================================ */

/* ----- Tokens (same as index.html) -------------------------------------- */
:root{
  --deep:#1A003A; --deep-2:#12012e; --navy:#000A64;
  --bright:#5696C4; --bright-ink:#2f6da3;
  --grey:#F2F2F2; --paper:#FBFBFD; --ink:#1A003A;
  --ink-70:rgba(26,0,58,.72); --ink-55:rgba(26,0,58,.55);
  --line:rgba(26,0,58,.10); --white:#fff;
  --radius:16px; --radius-sm:11px; --maxw:1180px;
  --shadow:0 18px 50px -22px rgba(0,10,100,.30);
  --shadow-sm:0 8px 24px -14px rgba(0,10,100,.35);
  --shadow-pop:0 24px 60px -18px rgba(0,10,100,.45);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Manrope',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  color:var(--ink);background:var(--white);line-height:1.6;font-weight:500;
  -webkit-font-smoothing:antialiased;letter-spacing:-.01em}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
section{scroll-margin-top:90px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--bright-ink);margin-bottom:18px}
.eyebrow.on-dark{color:#9cc4e6}
h1,h2,h3{font-weight:800;line-height:1.08;letter-spacing:-.03em}
.h1{font-size:clamp(2.1rem,4.4vw,3.2rem)}
.h2{font-size:clamp(1.7rem,3.2vw,2.4rem)}
.lead{font-size:clamp(1.03rem,1.4vw,1.15rem);color:var(--ink-70);font-weight:500}
.center{text-align:center}
.section-head{max-width:680px;margin:0 auto 44px}

/* ----- Buttons ------------------------------------------------------------ */
.btn{display:inline-flex;align-items:center;gap:9px;cursor:pointer;border:0;
  font-family:inherit;font-weight:700;font-size:1rem;letter-spacing:-.01em;
  padding:15px 26px;border-radius:999px;transition:.22s ease;white-space:nowrap}
.btn svg{width:18px;height:18px}
.btn--primary{background:var(--deep);color:#fff;box-shadow:0 10px 26px -12px rgba(0,10,100,.7)}
.btn--primary:hover{background:var(--navy);transform:translateY(-2px)}
.btn--blue{background:var(--navy);color:#fff;box-shadow:0 10px 26px -14px rgba(0,10,100,.8)}
.btn--blue:hover{background:#0a1a8f;transform:translateY(-2px)}
.btn--bright{background:var(--bright);color:#06122a}
.btn--bright:hover{background:#6aa7d4;transform:translateY(-2px)}
.btn--ghost{background:transparent;color:#fff;box-shadow:inset 0 0 0 1.5px rgba(255,255,255,.4)}
.btn--ghost:hover{background:rgba(255,255,255,.10)}
.btn--outline{background:transparent;color:var(--deep);box-shadow:inset 0 0 0 1.5px rgba(26,0,58,.22)}
.btn--outline:hover{box-shadow:inset 0 0 0 1.5px var(--deep);background:rgba(26,0,58,.04)}
.btn--sm{padding:9px 15px;font-size:.9rem}
.btn--block{width:100%;justify-content:center}

/* ----- Promo bar + Nav (matches reeco.co.uk) ------------------------------ */
.promo{background:var(--deep);color:#fff;text-align:center;font-size:.86rem;font-weight:600;
  padding:9px 16px;letter-spacing:-.005em;
  background-image:radial-gradient(600px 120px at 80% 0,rgba(86,150,196,.35),transparent 70%)}
.promo a{color:#9cc4e6;font-weight:700;text-decoration:underline;text-underline-offset:3px;margin-left:8px}
.promo a:hover{color:#fff}
header.site{position:sticky;top:0;z-index:60}
.nav{background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav__inner{display:flex;align-items:center;gap:18px;height:72px;position:relative;max-width:1380px}
.nav .logo{color:var(--deep);height:24px;width:auto}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:10px}
.nav-item{position:relative}
.nav-item>a{display:flex;align-items:center;gap:5px;padding:9px 11px;border-radius:9px;
  color:var(--deep);font-weight:600;font-size:.93rem;transition:.15s}
.nav-item>a:hover{background:rgba(26,0,58,.05)}
.nav-item.is-active>a{background:rgba(86,150,196,.14);color:var(--deep)}
.caret{width:13px;height:13px;opacity:.55;transition:.2s}
.nav-item:hover .caret{transform:rotate(180deg)}
.dropdown{position:absolute;top:100%;left:0;min-width:236px;background:#fff;border:1px solid var(--line);
  border-radius:14px;box-shadow:var(--shadow-pop);padding:10px;margin-top:6px;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:.18s ease;z-index:70}
.nav-item:hover .dropdown{opacity:1;visibility:visible;transform:none}
.dropdown::before{content:"";position:absolute;top:-8px;left:0;right:0;height:8px}
.dropdown a{display:block;padding:9px 12px;border-radius:8px;color:var(--ink-70);font-weight:600;font-size:.92rem}
.dropdown a:hover{background:rgba(86,150,196,.12);color:var(--deep)}
.nav__right{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav__toggle{display:none;background:none;border:0;cursor:pointer;padding:6px;color:var(--deep)}
.nav__toggle svg{width:26px;height:26px}
.mobile-menu{display:none;background:#fff;border-bottom:1px solid var(--line);padding:8px 0 16px}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:13px 24px;color:var(--deep);font-weight:600;border-bottom:1px solid var(--line)}
.mobile-menu .m-cta{padding:16px 24px 4px;display:grid;gap:10px}
.mobile-menu .m-cta .btn{justify-content:center}
@media (max-width:1280px){ .nav-menu,.nav__right{display:none} .nav__toggle{display:inline-flex;margin-left:auto} }

/* ----- Breadcrumb ---------------------------------------------------------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:.86rem;font-weight:600;
  color:var(--ink-55);margin-bottom:22px}
.crumbs a{color:var(--bright-ink)}
.crumbs a:hover{text-decoration:underline}
.crumbs .sep{opacity:.5}
.crumbs .current{color:var(--ink-70)}

/* ----- Learn hub (listing) -------------------------------------------------- */
.learn-hero{background:var(--paper);border-bottom:1px solid var(--line)}
.learn-hero__inner{max-width:720px}
.filter-bar{display:flex;flex-wrap:wrap;gap:9px;margin:28px 0 40px}
.filter-chip{font-family:inherit;font-size:.88rem;font-weight:700;color:var(--deep);
  background:#fff;border:1.5px solid var(--line);padding:9px 16px;border-radius:999px;cursor:pointer;transition:.16s}
.filter-chip:hover{border-color:rgba(86,150,196,.5)}
.filter-chip.is-active{background:var(--deep);color:#fff;border-color:var(--deep)}
.learn-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.learn-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:26px;
  display:flex;flex-direction:column;transition:.2s ease}
.learn-card:hover{box-shadow:var(--shadow-sm);transform:translateY(-3px);border-color:rgba(86,150,196,.4)}
.learn-card__tag{font-size:.74rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--bright-ink);margin-bottom:10px}
.learn-card h3{font-size:1.12rem;margin-bottom:9px;line-height:1.3}
.learn-card p{color:var(--ink-70);font-size:.92rem;margin-bottom:16px;flex:1}
.learn-card__meta{font-size:.82rem;color:var(--ink-55);font-weight:600;display:flex;justify-content:space-between;align-items:center}
.learn-card__meta .arrow{color:var(--bright-ink);display:inline-flex}
.learn-card__meta .arrow svg{width:16px;height:16px}
.learn-card.is-hidden{display:none}
.learn-card--soon{background:var(--grey);border-style:dashed;cursor:default}
.learn-card--soon:hover{transform:none;box-shadow:none;border-color:var(--line)}
.learn-card--soon .learn-card__meta{color:var(--ink-55)}
.soon-pill{display:inline-block;font-size:.7rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  color:var(--ink-55);background:rgba(26,0,58,.06);border:1px solid var(--line);padding:3px 9px;border-radius:999px}
@media (max-width:960px){ .learn-grid{grid-template-columns:1fr 1fr} }
@media (max-width:640px){ .learn-grid{grid-template-columns:1fr} }

/* ----- Article template ----------------------------------------------------- */
.article-head{max-width:760px}
.article-head .h1{margin-bottom:18px}
.quick-answer{max-width:760px;background:rgba(86,150,196,.08);border:1px solid rgba(86,150,196,.28);
  border-left:4px solid var(--bright);border-radius:var(--radius-sm);padding:22px 26px;margin:0 0 40px}
.quick-answer__label{font-size:.72rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;
  color:var(--bright-ink);margin-bottom:8px}
.quick-answer p{color:var(--ink);font-size:1.02rem;font-weight:600;line-height:1.55}
.article-body{max-width:760px;color:var(--ink-70);font-size:1.02rem}
.article-body h2{font-size:1.3rem;color:var(--ink);margin:36px 0 12px;letter-spacing:-.01em}
.article-body p{margin-bottom:14px}
.article-body ul{margin:0 0 14px 22px}
.article-body li{margin-bottom:7px}
.article-body a{color:var(--bright-ink);font-weight:700;text-decoration:underline;text-underline-offset:2px}
.faq{max-width:760px;margin-top:44px;border-top:1px solid var(--line);padding-top:36px}
.faq h2{font-size:1.3rem;margin-bottom:18px}
.faq details{border:1px solid var(--line);border-radius:var(--radius-sm);padding:16px 20px;margin-bottom:12px;background:var(--paper)}
.faq summary{cursor:pointer;font-weight:700;color:var(--ink);list-style:none;display:flex;justify-content:space-between;gap:12px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.3rem;font-weight:700;color:var(--bright-ink);flex:none}
.faq details[open] summary::after{content:"–"}
.faq details p{margin-top:12px;color:var(--ink-70);font-size:.96rem}
.related{max-width:960px;margin-top:56px}
.related h2{font-size:1.3rem;margin-bottom:18px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media (max-width:900px){ .related-grid{grid-template-columns:1fr} }
.article-cta{max-width:760px;margin-top:48px;background:var(--deep);border-radius:var(--radius);
  padding:32px 34px;color:#fff;display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;
  background-image:radial-gradient(600px 260px at 100% 0,rgba(86,150,196,.3),transparent 60%)}
.article-cta p{color:rgba(255,255,255,.8);font-size:.95rem;max-width:420px}
.article-cta h3{font-size:1.2rem;margin-bottom:6px}
.meta-row{display:flex;flex-wrap:wrap;gap:14px;color:var(--ink-55);font-size:.86rem;font-weight:600;margin-bottom:20px}
.meta-row span{display:inline-flex;align-items:center;gap:6px}

/* ----- Footer (matches reeco.co.uk) ---------------------------------------- */
.footer{background:var(--deep);color:rgba(255,255,255,.7);
  background-image:radial-gradient(800px 320px at 88% 0,rgba(0,10,100,.6),transparent 60%)}
.footer__cta{display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
  padding:48px 0;border-bottom:1px solid rgba(255,255,255,.12)}
.footer__cta h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2.1rem);max-width:560px}
.footer__top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:34px;padding:54px 0 40px}
.footer .logo{height:30px;color:#fff;margin-bottom:18px}
.footer__about{font-size:.95rem;max-width:300px;margin-bottom:20px}
.footer__social{display:flex;gap:10px}
.footer__social a{width:38px;height:38px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);transition:.18s}
.footer__social a:hover{background:rgba(86,150,196,.3)}
.footer__social svg{width:18px;height:18px;color:#fff}
.footer h4{color:#fff;font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;margin-bottom:16px}
.footer__col a{display:block;color:rgba(255,255,255,.7);margin-bottom:11px;font-size:.95rem;transition:.16s}
.footer__col a:hover{color:#fff}
.footer__contact b{color:#fff;display:block;font-size:1.05rem;margin-bottom:4px}
.footer__contact a{color:rgba(255,255,255,.72)}
.footer__bottom{display:flex;flex-wrap:wrap;gap:14px 28px;justify-content:space-between;align-items:center;
  padding:24px 0;border-top:1px solid rgba(255,255,255,.12);font-size:.85rem}
.footer__legal{display:flex;flex-wrap:wrap;gap:6px 20px}
.footer__legal a:hover{color:#fff}
.footer__addr{display:flex;flex-wrap:wrap;gap:6px 24px;opacity:.8}
@media (max-width:960px){ .footer__top{grid-template-columns:1fr 1fr} }
@media (max-width:560px){ .container{padding:0 18px} .footer__top{grid-template-columns:1fr} }