/* =========================================================
   HES Hartel Tank Terminal — corporate design system
   Typography: Source Serif 4 (display) · Libre Franklin (UI/body)
   ========================================================= */

:root{
  /* Brand palette */
  --navy:      #0A2540;
  --navy-900:  #081C31;
  --navy-800:  #10314F;
  --navy-700:  #16405F;
  --steel:     #45607A;
  --steel-300: #7C93AB;
  --mist:      #EDF1F4;
  --mist-200:  #F5F8FA;
  --paper:     #FBFCFD;
  --ink:       #10202F;
  --ink-soft:  #43586B;
  --amber:     #E39A2B;
  --amber-600: #C9821A;
  --line:      #E1E8EE;
  --line-2:    #D3DCE4;
  --white:     #FFFFFF;

  --maxw: 1200px;
  --gutter: 32px;
  --radius: 10px;
  --radius-sm: 6px;

  --shadow-sm: 0 1px 2px rgba(10,37,64,.05), 0 8px 24px rgba(10,37,64,.06);
  --shadow-md: 0 18px 50px rgba(10,37,64,.13);

  --ff-head: "Source Serif 4", Georgia, "Times New Roman", serif;
  --ff-body: "Libre Franklin", "Helvetica Neue", Arial, sans-serif;
  --ff-ui:   "Libre Franklin", "Helvetica Neue", Arial, sans-serif;

  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ---------- reset / base ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  margin:0;
  font-family:var(--ff-body);
  color:var(--ink);
  background:var(--paper);
  line-height:1.65;
  font-size:17px;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg{ max-width:100%; display:block; }
a{ color:var(--navy-700); text-decoration:none; transition:color .18s var(--ease); }
a:hover{ color:var(--amber-600); }

h1,h2,h3,h4{
  font-family:var(--ff-head); color:var(--navy);
  line-height:1.12; margin:0 0 .5em; font-weight:600;
  letter-spacing:-.012em; text-wrap:balance;
}
h1{ font-size:clamp(2.5rem, 4.6vw, 3.65rem); line-height:1.06; letter-spacing:-.02em; }
h2{ font-size:clamp(1.85rem, 3vw, 2.5rem); line-height:1.1; }
h3{ font-size:1.3rem; font-weight:600; line-height:1.25; }
p{ margin:0 0 1.1em; max-width:66ch; }
strong{ font-weight:600; }

.container{ width:100%; max-width:var(--maxw); margin:0 auto; padding:0 var(--gutter); }

/* section rhythm */
.section{ padding:104px 0; }
.section--tight{ padding:72px 0; }
.section--mist{ background:var(--mist-200); }
.section--navy{ background:var(--navy); color:#CDDAE6; }
.section--navy h2,.section--navy h3{ color:#fff; }
.section + .section{ border-top:0; }

/* intro block */
.lead-label{
  display:inline-flex; align-items:center; gap:11px;
  font-family:var(--ff-ui); font-weight:600; font-size:.78rem;
  letter-spacing:.16em; text-transform:uppercase; color:var(--amber-600);
  margin-bottom:18px;
}
.lead-label::before{ content:""; width:28px; height:2px; background:var(--amber); border-radius:2px; }
.section--navy .lead-label{ color:var(--amber); }
.intro{ max-width:720px; margin-bottom:60px; }
.intro p{ font-size:1.16rem; line-height:1.6; color:var(--ink-soft); max-width:62ch; }
.section--navy .intro p{ color:#AFC2D3; }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  font-family:var(--ff-ui); font-weight:600; font-size:.94rem; letter-spacing:.005em;
  padding:14px 28px; border-radius:var(--radius-sm);
  border:1.5px solid transparent; cursor:pointer;
  transition:background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease), box-shadow .2s var(--ease), transform .2s var(--ease);
  line-height:1; white-space:nowrap;
}
.btn--primary{ background:var(--amber); color:var(--navy); box-shadow:0 1px 2px rgba(10,37,64,.12); }
.btn--primary:hover{ background:#EEA53A; color:var(--navy); transform:translateY(-2px); box-shadow:0 10px 24px rgba(227,154,43,.32); }
.btn--ghost{ border-color:rgba(255,255,255,.4); color:#fff; }
.btn--ghost:hover{ border-color:#fff; background:rgba(255,255,255,.1); color:#fff; transform:translateY(-2px); }
.btn--dark{ background:var(--navy); color:#fff; }
.btn--dark:hover{ background:var(--navy-700); color:#fff; transform:translateY(-2px); box-shadow:0 10px 24px rgba(10,37,64,.22); }
.btn--outline{ border-color:var(--line-2); color:var(--navy); background:#fff; }
.btn--outline:hover{ border-color:var(--navy); background:var(--navy); color:#fff; transform:translateY(-2px); }

/* ---------- header / nav ---------- */
.site-header{
  position:sticky; top:0; z-index:60;
  background:rgba(251,252,253,.86); backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{ display:flex; align-items:center; justify-content:space-between; height:80px; }
.nav__logo{ display:inline-flex; align-items:center; }
.nav__logo img{ height:42px; width:auto; }
.nav__links{ display:flex; align-items:center; gap:34px; list-style:none; margin:0; padding:0; }
.nav__links a{
  font-family:var(--ff-ui); font-weight:500; font-size:.95rem; color:var(--ink);
  padding:6px 0; position:relative; letter-spacing:.005em;
}
.nav__links a::after{
  content:""; position:absolute; left:0; bottom:-3px; height:2px; width:0;
  background:var(--amber); transition:width .22s var(--ease);
}
.nav__links a:hover{ color:var(--navy); }
.nav__links a:hover::after,.nav__links a[aria-current="page"]::after{ width:100%; }
.nav__links a[aria-current="page"]{ color:var(--navy); font-weight:600; }
/* CTA button inside nav keeps its own colours */
.nav__links .btn{ color:#fff; font-weight:600; }
.nav__links .btn:hover{ color:#fff; }
.nav__links .btn::after{ display:none; }
.nav__cta{ margin-left:6px; }
.nav__toggle{
  display:none; background:none; border:0; cursor:pointer; padding:8px; color:var(--navy);
}
.nav__toggle svg{ width:26px; height:26px; }

/* ---------- hero ---------- */
.hero{
  position:relative; isolation:isolate;
  background:
    linear-gradient(180deg, rgba(8,24,42,.30) 0%, rgba(8,24,42,.55) 62%, rgba(8,24,42,.86) 100%),
    linear-gradient(94deg, rgba(8,24,42,.94) 0%, rgba(8,24,42,.80) 34%, rgba(8,24,42,.44) 68%, rgba(8,24,42,.28) 100%),
    #0A2540 url("../img/hero.jpg") center 32% / cover no-repeat;
  color:#EAF1F7; overflow:hidden;
  padding:132px 0 148px;
}
/* hero__inner also carries .container (max-width:1200 + auto margins), so its
   left edge lines up with the header, stats band and every section below. The
   text column is constrained on the children, not by centring a narrow box. */
.hero__inner{ position:relative; z-index:2; }
.hero__eyebrow{
  display:inline-flex; align-items:center; gap:11px;
  font-family:var(--ff-ui); font-weight:600; font-size:.78rem;
  letter-spacing:.18em; text-transform:uppercase; color:var(--amber);
  margin-bottom:24px;
}
.hero__eyebrow::before{ content:""; width:30px; height:2px; background:var(--amber); border-radius:2px; }
.hero h1{ color:#fff; margin-bottom:22px; letter-spacing:-.02em; max-width:15ch; }
.hero__sub{ font-family:var(--ff-body); font-size:1.22rem; line-height:1.55; color:#C6D6E4; max-width:54ch; margin-bottom:36px; font-weight:400; }
.hero__actions{ display:flex; flex-wrap:wrap; gap:14px; }
.hero__loc{
  margin-top:40px; display:inline-flex; align-items:center; gap:11px;
  font-family:var(--ff-ui); font-size:.92rem; letter-spacing:.01em; color:#9FB4C8;
}
.hero__loc svg{ width:19px; height:19px; flex:none; stroke:var(--amber); }

/* ---------- stat band ---------- */
.stats{ position:relative; z-index:5; margin-top:-88px; }
.stats__grid{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  box-shadow:var(--shadow-md);
  display:grid; grid-template-columns:repeat(4,1fr); overflow:hidden;
}
.stat{ padding:38px 34px; border-right:1px solid var(--line); }
.stat:last-child{ border-right:0; }
.stat__num{ font-family:var(--ff-head); font-weight:600; font-size:2.7rem; color:var(--navy); line-height:1; letter-spacing:-.02em; }
.stat__num span{ color:var(--amber); font-size:.72em; }
.stat__label{ margin-top:12px; font-size:.92rem; line-height:1.4; color:var(--ink-soft); }

/* ---------- card grid ---------- */
.grid{ display:grid; gap:24px; }
.grid--3{ grid-template-columns:repeat(3,1fr); }
.grid--2{ grid-template-columns:repeat(2,1fr); }

.card{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  padding:34px 32px; transition:border-color .2s var(--ease), box-shadow .2s var(--ease), transform .2s var(--ease);
}
.card:hover{ border-color:var(--line-2); box-shadow:var(--shadow-sm); transform:translateY(-3px); }
.card__icon{
  width:52px; height:52px; border-radius:var(--radius-sm); background:var(--navy);
  display:grid; place-items:center; margin-bottom:22px;
}
.card__icon svg{ width:25px; height:25px; stroke:var(--amber); fill:none; }
.card h3{ margin-bottom:10px; }
.card p{ color:var(--ink-soft); margin-bottom:0; font-size:.98rem; line-height:1.6; }

/* ---------- split feature ---------- */
.split{ display:grid; grid-template-columns:1.02fr .98fr; gap:64px; align-items:center; }
.split--rev .split__media{ order:2; }
.split__media{
  border-radius:var(--radius); overflow:hidden; border:1px solid var(--line);
  background:var(--mist); position:relative; min-height:460px; align-self:stretch;
  box-shadow:var(--shadow-sm);
}
.split__media img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; display:block; }
.section--navy .split__media{ border-color:rgba(255,255,255,.12); box-shadow:none; }
.split h2{ margin-bottom:.4em; }
.split ul.ticks{ list-style:none; margin:24px 0 0; padding:0; }
.split ul.ticks li{
  position:relative; padding-left:34px; margin-bottom:15px; color:var(--ink-soft); line-height:1.5;
}
.section--navy .ticks li{ color:#BACADA; }
.split ul.ticks li::before{
  content:""; position:absolute; left:0; top:2px; width:21px; height:21px;
  border-radius:5px; background:rgba(227,154,43,.16);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23C9821A' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-repeat:no-repeat; background-position:center;
}

/* ---------- process / sequence ---------- */
.steps{ display:grid; grid-template-columns:repeat(4,1fr); gap:32px; counter-reset:step; }
.step{ position:relative; padding-top:34px; }
.step::before{
  counter-increment:step; content:"0" counter(step);
  font-family:var(--ff-head); font-weight:600; font-size:1.7rem; color:var(--amber);
  position:absolute; top:-6px; left:0; letter-spacing:-.02em;
}
.step h3{ font-size:1.16rem; margin:8px 0 8px; }
.step p{ font-size:.95rem; color:var(--ink-soft); margin:0; line-height:1.55; }
.section--navy .step p{ color:#AFC2D3; }
.section--navy .step h3{ color:#fff; }

/* ---------- page header (inner pages) ---------- */
.page-head{
  position:relative; isolation:isolate;
  background:
    linear-gradient(96deg, rgba(8,24,42,.95) 0%, rgba(8,24,42,.82) 46%, rgba(8,24,42,.62) 100%),
    #0A2540 url("../img/pagehead.jpg") center 40% / cover no-repeat;
  color:#fff; padding:104px 0 88px;
}
.page-head__crumb{
  font-family:var(--ff-ui); font-size:.82rem; letter-spacing:.04em; color:#9BB1C6;
  margin-bottom:18px; font-weight:500; text-transform:uppercase;
}
.page-head__crumb a{ color:#9BB1C6; }
.page-head__crumb a:hover{ color:var(--amber); }
.page-head h1{ color:#fff; margin:0 0 16px; }
.page-head p{ color:#C6D6E4; max-width:58ch; font-size:1.16rem; line-height:1.55; margin:0; font-weight:400; }

/* ---------- contact ---------- */
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:56px; }
.info-block{ margin-bottom:28px; }
.info-block h4{ font-family:var(--ff-ui); font-size:.76rem; font-weight:600; text-transform:uppercase; letter-spacing:.14em; color:var(--amber-600); margin:0 0 7px; }
.info-block p{ margin:0; color:var(--ink-soft); }
.info-block address{ font-style:normal; color:var(--ink); line-height:1.75; }
.form{ display:grid; gap:18px; }
.form label{ font-family:var(--ff-ui); font-weight:600; font-size:.86rem; color:var(--navy); display:block; margin-bottom:7px; letter-spacing:.01em; }
.form input,.form select,.form textarea{
  width:100%; padding:13px 15px; border:1px solid var(--line-2); border-radius:var(--radius-sm);
  font-family:var(--ff-body); font-size:1rem; color:var(--ink); background:#fff;
  transition:border-color .18s var(--ease), box-shadow .18s var(--ease);
}
.form input:focus,.form select:focus,.form textarea:focus{ outline:none; border-color:var(--navy); box-shadow:0 0 0 3px rgba(10,37,64,.1); }
.form textarea{ min-height:140px; resize:vertical; }
.map-embed{ border:0; width:100%; height:100%; min-height:340px; display:block; }

/* ---------- cta band ---------- */
.cta{
  position:relative; overflow:hidden;
  background:
    radial-gradient(760px 320px at 82% 0%, rgba(227,154,43,.18), transparent 62%),
    linear-gradient(118deg, var(--navy-900), var(--navy-700));
  border-radius:var(--radius); color:#fff; padding:60px 60px;
  display:flex; align-items:center; justify-content:space-between; gap:40px; flex-wrap:wrap;
}
.cta > div{ max-width:46ch; }
.cta h2{ color:#fff; margin:0 0 8px; }
.cta p{ color:#C6D6E4; margin:0; }

/* ---------- footer ---------- */
.site-footer{ background:var(--navy-900); color:#B7C7D6; padding:76px 0 30px; }
.footer__top{ display:grid; grid-template-columns:1.5fr 1fr 1fr 1.1fr; gap:44px; padding-bottom:48px; border-bottom:1px solid rgba(255,255,255,.12); }
.footer__brand img{ height:44px; margin-bottom:20px; }
.footer__brand p{ font-size:.95rem; line-height:1.6; color:#8FA6BB; max-width:36ch; }
.site-footer h4{ font-family:var(--ff-ui); color:#fff; font-size:.8rem; font-weight:600; letter-spacing:.12em; text-transform:uppercase; margin:0 0 18px; }
.site-footer ul{ list-style:none; margin:0; padding:0; }
.site-footer ul li{ margin-bottom:12px; }
.site-footer ul a{ color:#C6D6E4; font-size:.96rem; }
.site-footer ul a:hover{ color:var(--amber); }
.site-footer address{ font-style:normal; font-size:.96rem; line-height:1.8; color:#C6D6E4; }
.footer__bottom{ display:flex; justify-content:space-between; align-items:center; gap:16px; flex-wrap:wrap; padding-top:26px; font-size:.85rem; color:#8098AE; }
.footer__bottom a{ color:#8098AE; }
.footer__bottom a:hover{ color:var(--amber); }

/* ---------- utilities ---------- */
.text-center{ text-align:center; }
.mt-0{ margin-top:0; }
.narrow{ max-width:820px; }
.divider{ height:1px; background:var(--line); border:0; margin:0; }

/* ---------- focus ---------- */
:focus-visible{ outline:3px solid var(--amber); outline-offset:2px; border-radius:4px; }

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .split{ gap:44px; }
  .footer__top{ grid-template-columns:1fr 1fr 1fr; }
  .footer__brand{ grid-column:1 / -1; }
}
@media (max-width:960px){
  .split{ grid-template-columns:1fr; gap:34px; }
  .split--rev .split__media{ order:0; }
  .split__media{ min-height:340px; }
  .contact-grid{ grid-template-columns:1fr; gap:40px; }
  .stats__grid{ grid-template-columns:repeat(2,1fr); }
  .stat:nth-child(2){ border-right:0; }
  .stat:nth-child(1),.stat:nth-child(2){ border-bottom:1px solid var(--line); }
  .steps{ grid-template-columns:repeat(2,1fr); gap:28px 32px; }
}
@media (max-width:760px){
  :root{ --gutter:22px; }
  body{ font-size:16px; }
  .section{ padding:68px 0; }
  .section--tight{ padding:52px 0; }
  .intro{ margin-bottom:40px; }
  .nav__links{
    position:fixed; inset:80px 0 auto 0; flex-direction:column; align-items:flex-start;
    gap:0; background:#fff; border-bottom:1px solid var(--line);
    padding:8px 22px 22px; box-shadow:var(--shadow-md);
    transform:translateY(-12px); opacity:0; pointer-events:none; transition:transform .22s var(--ease), opacity .22s var(--ease);
  }
  .nav__links.open{ transform:translateY(0); opacity:1; pointer-events:auto; }
  .nav__links li{ width:100%; border-bottom:1px solid var(--mist); }
  .nav__links li:last-child{ border-bottom:0; }
  .nav__links a{ display:block; padding:15px 0; width:100%; font-size:1rem; }
  .nav__cta{ margin:14px 0 0; }
  .nav__cta .btn{ width:100%; }
  .nav__toggle{ display:inline-flex; }
  .grid--3,.grid--2{ grid-template-columns:1fr; }
  .hero{ padding:96px 0 120px; }
  .hero__sub{ font-size:1.1rem; }
  .cta{ padding:44px 32px; text-align:left; }
  .footer__top{ grid-template-columns:1fr 1fr; gap:32px; }
  .footer__brand{ grid-column:1 / -1; }
}
@media (max-width:520px){
  .stats__grid{ grid-template-columns:1fr; }
  .stat{ border-right:0; border-bottom:1px solid var(--line); padding:28px 26px; }
  .stat:nth-child(1),.stat:nth-child(2){ border-bottom:1px solid var(--line); }
  .stat:last-child{ border-bottom:0; }
  .steps{ grid-template-columns:1fr; gap:26px; }
  .footer__top{ grid-template-columns:1fr; }
  .cta{ padding:38px 26px; }
}

@media (prefers-reduced-motion:reduce){
  *{ transition:none !important; scroll-behavior:auto !important; }
}