/* Neutral guide theme (shared). Site accent set in the per-site block below. */
:root{--ink:#1F2933;--muted:#52606D;--bg:#fff;--panel:#F5F6F8;--line:#E1E4E8;--primary:#1F2933}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;font-size:17px;line-height:1.6;color:var(--ink);background:var(--bg)}
img{max-width:100%;height:auto;display:block}
a{color:var(--link)}
a:hover{color:var(--link-hover)}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
.narrow{max-width:780px}
.skip{position:absolute;left:-9999px;top:0;background:#fff;color:#000;padding:8px 12px;z-index:10}
.skip:focus{left:8px;top:8px}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}

.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.wordmark{font-weight:700;font-size:20px;letter-spacing:-.01em;color:var(--ink);text-decoration:none;white-space:nowrap}
.wordmark:hover{color:var(--ink)}
.site-header nav{display:flex;align-items:center;gap:22px}
.site-header nav a{color:var(--ink);text-decoration:none;font-weight:600;font-size:15px}
.site-header nav a:hover{text-decoration:underline;color:var(--ink)}

.btn{display:inline-block;padding:12px 22px;border-radius:6px;font-weight:700;text-decoration:none;font-size:16px;line-height:1.2;border:2px solid transparent;text-align:center}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);color:#fff}
.btn-outline{background:transparent;color:var(--ink);border-color:#9AA5B1}
.btn-outline:hover{border-color:var(--ink);color:var(--ink)}
.btns{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 0}

.hero{background:var(--panel);border-bottom:1px solid var(--line);padding:60px 0 52px}
.eyebrow{margin:0 0 12px;font-size:14px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--accent)}
.hero h1{margin:0;font-size:44px;line-height:1.12;max-width:820px;letter-spacing:-.01em}
.lead{font-size:19px;max-width:760px;margin:18px 0 0}
.meta{margin:22px 0 0;font-size:14px;color:var(--muted)}

.faq-layout{display:grid;grid-template-columns:290px 1fr;gap:48px;padding-top:48px;padding-bottom:40px}
.toc{position:sticky;top:88px;align-self:start;max-height:calc(100vh - 106px);overflow:auto;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:18px 18px 8px;font-size:14px}
.toc-h{font-size:13px;text-transform:uppercase;letter-spacing:.06em;margin:0 0 10px;color:var(--muted)}
.toc ol{list-style:none;margin:0;padding:0}
.toc-cat{display:block;font-weight:700;color:var(--ink);text-decoration:none;margin:10px 0 4px}
.toc-q li a{display:block;color:var(--ink);text-decoration:none;padding:3px 0 3px 10px;border-left:2px solid var(--line);line-height:1.35}
.toc-q li a:hover{border-left-color:var(--accent)}

.faq-cat{margin:0 0 40px;scroll-margin-top:86px}
.faq-cat h2{font-size:28px;line-height:1.2;margin:0 0 8px;padding-bottom:10px;border-bottom:2px solid var(--line)}
.qa{padding:20px 0;border-bottom:1px solid var(--line);scroll-margin-top:86px}
.qa h3{font-size:20px;line-height:1.3;margin:0 0 8px}
.qa-link{color:var(--ink);text-decoration:none}
.qa-link:hover{text-decoration:underline;color:var(--ink)}
.qa p{margin:0}

.cta-wrap{padding-bottom:56px}
.cta-box{border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:10px;background:var(--panel);padding:28px 30px}
.cta-label{margin:0 0 6px;font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.cta-box h2{margin:0;font-size:26px;line-height:1.25}
.cta-box p{margin:10px 0 0}
.cta-box .btns{margin-top:18px}

.page{padding:56px 0}
.page h1{font-size:40px;line-height:1.15;margin:0}
.page h2{font-size:24px;margin:34px 0 8px}

.site-footer{background:var(--panel);border-top:1px solid var(--line);color:var(--muted);font-size:15px;padding:40px 0 0}
.site-footer a{color:var(--ink)}
.foot-grid{display:grid;grid-template-columns:2fr 1fr;gap:32px}
.foot-wordmark{font-size:18px;margin:0 0 8px!important}
.foot-h{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0 0 10px}
.foot-grid p{margin:0 0 10px}
.foot-bottom{border-top:1px solid var(--line);margin-top:24px;padding:16px 20px 20px;font-size:14px}
.foot-bottom p{margin:0 0 4px}
.disclosure{color:var(--ink)}

@media (max-width:980px){
  .faq-layout{grid-template-columns:1fr;gap:28px;padding-top:28px}
  .toc{position:static;max-height:none}
  .toc-q{display:none}
  .toc>ol{display:flex;flex-wrap:wrap;gap:8px}
  .toc-cat{margin:0;padding:7px 12px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:14px}
  .foot-grid{grid-template-columns:1fr}
}
@media (max-width:640px){
  body{font-size:16px}
  .header-inner{min-height:56px}
  .wordmark{font-size:18px}
  .site-header nav{gap:16px}
  .site-header nav a{font-size:14px}
  .hero{padding:36px 0 36px}
  .hero h1{font-size:31px}
  .lead{font-size:17px}
  .btns .btn{flex:1 1 100%}
  .faq-cat h2{font-size:24px}
  .qa h3{font-size:18px}
  .page h1{font-size:31px}
  .cta-box{padding:22px 20px}
  .cta-box h2{font-size:22px}
}
/* Flexitank Logistics accent */
:root{--accent:#2E6E62;--accent-hover:#23584E;--link:#2E6E62;--link-hover:#1F2933}