:root {
  --bg: #fbfaf7;
  --bg-alt: #f3f1ec;
  --ink: #151515;
  --ink-soft: #3d3c39;
  --muted: #74726c;
  --line: #e4e0d8;
  --accent: #7b4a12;
  --up: #2f6b3f;
  --down: #9b2c2c;
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: "Jost", "Helvetica Neue", Arial, sans-serif;
  --wrap: 1200px;
  --nav-h: 76px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3 { margin: 0; font-weight: 400; }
h1, h2 { font-family: var(--serif); letter-spacing: -0.015em; line-height: 1.08; }
h1 { font-size: clamp(2.6rem, 5.6vw, 4.6rem); font-weight: 300; }
h2 { font-size: clamp(2rem, 3.6vw, 3rem); font-weight: 300; }
h3 { font-family: var(--sans); font-size: 1.1rem; font-weight: 500; letter-spacing: 0.01em; }
p { margin: 0; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 32px; }

.eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
  font-weight: 500;
}
.lead { font-size: 1.15rem; color: var(--ink-soft); max-width: 34em; margin-top: 24px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font: 500 0.82rem/1 var(--sans);
  letter-spacing: 0.16em; text-transform: uppercase;
  text-decoration: none; cursor: pointer;
  padding: 17px 30px; border: 1px solid var(--ink); border-radius: 0;
  transition: background .25s ease, color .25s ease, border-color .25s ease;
}
.btn--solid { background: var(--ink); color: #fff; }
.btn--solid:hover { background: var(--accent); border-color: var(--accent); }
.btn--outline { background: transparent; color: var(--ink); }
.btn--outline:hover { background: var(--ink); color: #fff; }
.btn--text { border-color: transparent; padding-left: 4px; padding-right: 4px; background: none; }
.btn--text span { transition: transform .25s ease; }
.btn--text:hover span { transform: translateX(4px); }
.btn--sm { padding: 12px 18px; font-size: 0.72rem; }
.btn--block { width: 100%; }
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 3px;
}

/* Nav */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50; height: var(--nav-h);
  transition: background .3s ease, border-color .3s ease;
  border-bottom: 1px solid transparent;
}
.nav.is-solid { background: rgba(251, 250, 247, 0.94); backdrop-filter: blur(8px); border-color: var(--line); }
.nav__inner { max-width: var(--wrap); margin: 0 auto; padding: 0 32px; height: 100%; display: flex; align-items: center; gap: 40px; }
.nav__logo img { height: 50px; width: auto; }
.nav__links { display: flex; gap: 36px; margin-left: auto; }
.nav__links a { text-decoration: none; font-size: 0.8rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-soft); position: relative; padding: 6px 0; }
.nav__links a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--ink); transform: scaleX(0); transform-origin: left; transition: transform .3s ease; }
.nav__links a:hover::after, .nav__links a.is-active::after { transform: scaleX(1); }
.nav__toggle { display: none; background: none; border: 0; width: 36px; height: 36px; cursor: pointer; padding: 8px 6px; }
.nav__toggle span { display: block; height: 1px; background: var(--ink); margin: 7px 0; transition: transform .3s ease; }

/* Hero */
.hero { position: relative; min-height: 100vh; min-height: 100svh; display: flex; flex-direction: column; justify-content: center; overflow: hidden; }
.hero__media { position: absolute; inset: 0; background: #d9dcdc url("assets/img/oleum-hero-refinery.jpg") center / cover no-repeat; }
.hero__media::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(ellipse 55% 60% at 50% 46%, rgba(251,250,247,.55) 0%, rgba(251,250,247,.22) 55%, rgba(251,250,247,0) 100%),
              linear-gradient(180deg, rgba(251,250,247,.45) 0%, rgba(251,250,247,0) 28%);
}
.hero__video { width: 100%; height: 100%; object-fit: cover; object-position: 50% 50%; }
.hero__content { position: relative; display: flex; flex-direction: column; align-items: center; text-align: center; padding-top: var(--nav-h); padding-bottom: 60px; }
.hero__logo { margin: 0; line-height: 0; }
.hero__logo img { width: clamp(240px, 30vw, 440px); height: auto; }
.hero__tagline { display: flex; align-items: center; gap: 22px; margin-top: 44px; font-family: var(--serif); font-style: italic; font-weight: 300; font-size: clamp(1.15rem, 1.6vw, 1.45rem); letter-spacing: 0.04em; color: var(--ink-soft); }
.hero__cue { position: absolute; left: 50%; bottom: 84px; width: 1px; height: 56px; transform: translateX(-50%); overflow: hidden; background: rgba(21,21,21,.12); }
.hero__cue span { position: absolute; left: 0; top: 0; width: 1px; height: 22px; background: var(--ink); animation: cue 2.4s cubic-bezier(.6,0,.4,1) infinite; }
@keyframes cue { 0% { transform: translateY(-22px); } 100% { transform: translateY(56px); } }
.nav__logo { transition: opacity .35s ease; }
.nav:not(.is-solid):not(.is-open) .nav__logo { opacity: 0; pointer-events: none; }
.hero__actions { display: flex; gap: 20px; margin-top: 40px; flex-wrap: wrap; }

/* Price strip */
.prices { position: absolute; left: 0; right: 0; bottom: 0; background: rgba(251,250,247,.9); backdrop-filter: blur(6px); border-top: 1px solid var(--line); }
.prices__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 68px; }
.prices__list { list-style: none; margin: 0; padding: 0; display: flex; gap: 36px; flex-wrap: nowrap; }
.price { display: flex; align-items: baseline; gap: 12px; font-size: 0.9rem; white-space: nowrap; }
.price__name { font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); }
.price__val { font-variant-numeric: tabular-nums; font-weight: 500; }
.price__chg { font-variant-numeric: tabular-nums; font-size: 0.82rem; }
.price__chg.up { color: var(--up); }
.price__chg.down { color: var(--down); }
.prices__note { font-size: 0.72rem; color: var(--muted); letter-spacing: 0.04em; white-space: nowrap; }

/* Ticker */
.ticker { border-bottom: 1px solid var(--line); background: var(--bg); overflow: hidden; }
.ticker__track { display: flex; width: max-content; animation: ticker 55s linear infinite; }
.ticker:hover .ticker__track { animation-play-state: paused; }
.ticker__group { list-style: none; margin: 0; padding: 0; display: flex; }
.ticker__group li {
  font-size: 0.78rem; letter-spacing: 0.28em; text-transform: uppercase; color: var(--ink-soft);
  padding: 22px 0; display: flex; align-items: center; white-space: nowrap;
}
.ticker__group li::after {
  content: ""; width: 7px; height: 9px; margin: 0 38px; background: var(--accent);
  -webkit-mask: url("assets/drop.svg") center / contain no-repeat; mask: url("assets/drop.svg") center / contain no-repeat;
}
@keyframes ticker { to { transform: translateX(-50%); } }

/* Sections */
.section { padding: 140px 0; }
.section__head { margin-bottom: 64px; }

.about__grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 96px; align-items: center; }
.about .lead + .lead { margin-top: 18px; }
.about__cred { margin-top: 36px; font-size: 0.8rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--muted); }
.about__img { margin: 0; }
.about__img img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }

.products { background: var(--bg-alt); }
.cards { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--ink); }
.card { padding: 36px 32px 44px 0; border-right: 1px solid var(--line); display: flex; flex-direction: column; gap: 14px; }
.card + .card { padding-left: 32px; }
.card:last-child { border-right: 0; }
.card__num { font-size: 0.75rem; letter-spacing: 0.2em; color: var(--accent); }
.card h3 { font-family: var(--serif); font-size: 1.6rem; font-weight: 300; letter-spacing: -0.01em; margin-top: 18px; }
.card p { color: var(--ink-soft); font-size: 0.98rem; }
.card__tags { margin-top: auto; padding-top: 18px; font-size: 0.72rem !important; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted) !important; }

.approach { padding-top: 0; }
.band { margin: 0 0 120px; }
.band img { width: 100%; height: clamp(260px, 38vw, 520px); object-fit: cover; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 56px; }
.steps li { border-top: 1px solid var(--ink); padding-top: 28px; }
.steps__num { display: block; font-family: var(--serif); font-size: 3rem; font-weight: 300; line-height: 1; color: var(--accent); margin-bottom: 28px; }
.steps p { margin-top: 12px; color: var(--ink-soft); }

.standards { background: var(--bg-alt); }
.standards__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 96px; align-items: center; }
.standards__img { margin: 0; }
.standards__img img { width: 100%; aspect-ratio: 5 / 4; object-fit: cover; }
.standards__list { list-style: none; margin: 48px 0 0; padding: 0; }
.standards__list li { padding: 24px 0; border-top: 1px solid var(--line); display: grid; grid-template-columns: 180px 1fr; gap: 24px; }
.standards__list li:last-child { border-bottom: 1px solid var(--line); }
.standards__list p { color: var(--ink-soft); }

.contact__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 96px; align-items: start; }
.contact__details { list-style: none; margin: 48px 0 0; padding: 0; }
.contact__details li { display: grid; grid-template-columns: 110px 1fr; padding: 16px 0; border-top: 1px solid var(--line); }
.contact__details li:last-child { border-bottom: 1px solid var(--line); }
.contact__details span { font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--muted); padding-top: 4px; }
.contact__details a { text-decoration: none; border-bottom: 1px solid var(--line); }
.contact__details a:hover { border-color: var(--ink); }

.form { display: grid; gap: 22px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
label { display: grid; gap: 8px; font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); }
input, select, textarea {
  font: 400 1rem/1.4 var(--sans); color: var(--ink); letter-spacing: normal; text-transform: none;
  background: transparent; border: 0; border-bottom: 1px solid #c9c4ba; border-radius: 0;
  padding: 10px 0; width: 100%; transition: border-color .2s ease;
}
select { appearance: none; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6' fill='none' stroke='%23151515'/%3E%3C/svg%3E") right 4px center no-repeat; }
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--ink); }
.form .btn { justify-self: start; margin-top: 8px; }
.form__status { font-size: 0.9rem; color: var(--ink-soft); min-height: 1.4em; }

.footer { border-top: 1px solid var(--line); padding: 44px 0; }
.footer__inner { display: flex; align-items: center; gap: 32px; font-size: 0.82rem; color: var(--muted); }
.footer__logo { height: 30px; width: auto; }
.footer__login { margin-left: auto; background: none; border: 0; font: inherit; color: var(--ink-soft); letter-spacing: 0.16em; text-transform: uppercase; font-size: 0.72rem; cursor: pointer; }
.footer__login:hover { color: var(--ink); text-decoration: underline; }

/* Login modal */
.login { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 16px; }
.login[hidden] { display: none; }
.login__backdrop { position: absolute; inset: 0; background: rgba(21,21,21,.45); backdrop-filter: blur(3px); animation: fade .25s ease; }
.login__panel { position: relative; background: var(--bg); width: 100%; max-width: 420px; padding: 56px 44px 44px; animation: rise .3s ease; }
.login__close { position: absolute; top: 14px; right: 16px; background: none; border: 0; font-size: 1.8rem; line-height: 1; cursor: pointer; color: var(--muted); }
.login__logo { height: 44px; width: auto; margin-bottom: 36px; }
.login h2 { font-size: 1.9rem; margin-bottom: 28px; }
.login form { display: grid; gap: 28px; }
.login__msg { margin-top: 24px; font-size: 0.92rem; color: var(--ink-soft); padding: 14px 16px; background: var(--bg-alt); border-left: 2px solid var(--accent); }
.btn.is-loading { opacity: .6; pointer-events: none; }
@keyframes fade { from { opacity: 0; } }
@keyframes rise { from { opacity: 0; transform: translateY(12px); } }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .8s ease, transform .8s ease; }
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .hero__cue span { animation: none; }
  html { scroll-behavior: auto; }
  .ticker__track { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__video { display: none; }
}

/* Responsive */
@media (max-width: 1240px) { .prices__note { display: none; } }
@media (max-width: 1024px) {
  .prices__list { gap: 24px; }
  .price__chg { display: none; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .card:nth-child(2) { border-right: 0; }
  .card:nth-child(3) { padding-left: 0; }
  .card:nth-child(n+3) { border-top: 1px solid var(--line); }
  .about__grid, .standards__grid, .contact__grid { gap: 56px; }
  .prices__note { display: none; }
}
@media (max-width: 860px) {
  :root { --nav-h: 64px; }
  body { font-size: 16px; }
  .wrap, .nav__inner { padding: 0 20px; }
  .nav__inner { gap: 16px; }
  .nav__logo img { height: 32px; }
  .nav__links {
    position: fixed; top: var(--nav-h); left: 0; right: 0; flex-direction: column; gap: 0; margin: 0;
    background: var(--bg); border-bottom: 1px solid var(--line); padding: 8px 20px 20px;
    transform: translateY(-8px); opacity: 0; pointer-events: none; transition: opacity .25s ease, transform .25s ease;
  }
  .nav.is-open .nav__links { opacity: 1; transform: none; pointer-events: auto; }
  .nav.is-open { background: var(--bg); border-color: var(--line); }
  .nav__links a { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav__links a::after { display: none; }
  .nav .btn--sm { margin-left: auto; }
  .nav__toggle { display: block; }
  .nav.is-open .nav__toggle span:first-child { transform: translateY(4px) rotate(45deg); }
  .nav.is-open .nav__toggle span:last-child { transform: translateY(-4px) rotate(-45deg); }

  .hero { min-height: 88svh; }
  .hero__content { padding-top: var(--nav-h); }
  .nav .btn--sm { padding: 10px 12px; font-size: 0.66rem; letter-spacing: 0.12em; }
  .hero__content { padding-bottom: 80px; }
  .hero__cue { bottom: 76px; height: 40px; }
  .prices__inner { padding-top: 14px; padding-bottom: 14px; }
  .prices__list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 20px; width: 100%; }
  .price { flex-direction: column; gap: 2px; }

  .section { padding: 88px 0; }
  .section__head { margin-bottom: 40px; }
  .about__grid, .standards__grid, .contact__grid { grid-template-columns: 1fr; gap: 48px; }
  .cards { grid-template-columns: 1fr; }
  .card, .card + .card { padding: 28px 0 32px; border-right: 0; }
  .card + .card { border-top: 1px solid var(--line); }
  .card h3 { margin-top: 6px; }
  .band { margin-bottom: 72px; }
  .steps { grid-template-columns: 1fr; gap: 40px; }
  .steps__num { font-size: 2.2rem; margin-bottom: 16px; }
  .standards__list li { grid-template-columns: 1fr; gap: 6px; }
  .form__row { grid-template-columns: 1fr; }
  .footer__inner { flex-direction: column; align-items: flex-start; gap: 16px; }
  .footer__login { margin-left: 0; }
  .login__panel { padding: 48px 28px 32px; }
}

/* Live price ticker (TradingView) */
.ticker--prices { position: absolute; left: 0; right: 0; bottom: 0; z-index: 2; padding: 6px 0 2px; background: rgba(251,250,247,.88); backdrop-filter: blur(6px); border-top: 1px solid var(--line); border-bottom: 0; }
.ticker--prices .tradingview-widget-container { max-width: none; }
.ticker--prices .tradingview-widget-copyright { display: none; }

/* Crude oil section */
.crude { display: grid; grid-template-columns: 1fr 1.2fr; gap: 96px; align-items: start; }
.crude h2 { font-size: clamp(3rem, 6vw, 5rem); }
.crude .lead { margin-top: 8px; }
.crude__list { list-style: none; margin: 40px 0 0; padding: 0; border-top: 1px solid var(--ink); }
.crude__list li { padding: 20px 0; border-bottom: 1px solid var(--line); font-size: 1.05rem; display: flex; align-items: center; gap: 18px; }
.crude__list li::before { content: ""; width: 7px; height: 9px; background: var(--accent); flex: none;
  -webkit-mask: url("assets/drop.svg") center / contain no-repeat; mask: url("assets/drop.svg") center / contain no-repeat; }
@media (max-width: 860px) { .crude { grid-template-columns: 1fr; gap: 24px; } }

/* Transaction partners strip (above footer) */
.partners { border-top: 1px solid var(--line); background: var(--bg-alt); padding: 36px 0; }
.partners[hidden] { display: none; }
.partners__inner { display: flex; align-items: baseline; gap: 48px; flex-wrap: wrap; }
.partners__inner .eyebrow { margin: 0; }
.partners__list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 16px 48px; }
.partners__list li { display: flex; flex-direction: column; gap: 4px; }
.partners__list a { font-family: var(--serif); font-size: 1.15rem; color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--line); align-self: flex-start; }
.partners__list a:hover { border-color: var(--ink); }
.partners__list span { font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
@media (max-width: 720px) { .partners__inner { flex-direction: column; gap: 16px; } }

/* Refined crude products (inside #products) */
.refined { margin-top: 120px; padding-top: 120px; border-top: 1px solid var(--line); }
.refined h2 { font-size: clamp(2.4rem, 4.4vw, 3.6rem); }
.refined__list { margin-top: 8px; }
.refined__list li span { font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); margin-left: auto; }

/* Standards: heading removed, list sits under the eyebrow */
.standards__list { margin-top: 8px; }

/* Logistics partner: single pull quote with a hanging mark */
.standards + .logistics { border-top: 1px solid var(--line); }
.logistics__band { display: grid; grid-template-columns: 200px 1fr; align-items: start; }
.logistics__mark { font-family: var(--serif); font-size: 260px; line-height: 0.77; font-weight: 300; color: var(--accent); user-select: none; }
.logistics__body { padding-top: 24px; max-width: 860px; }
.logistics__quote { margin: 48px 0 0; }
.logistics__quote p { font-family: var(--serif); font-style: italic; font-weight: 300; font-size: clamp(2rem, 3.6vw, 3.25rem); line-height: 1.19; letter-spacing: -0.01em; color: var(--ink); }
.logistics__footer { display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--ink); }
.logistics__name { font-family: var(--serif); font-size: 1.75rem; font-weight: 300; letter-spacing: 0.06em; line-height: 1.15; }
.logistics__name a { text-decoration: none; border-bottom: 1px solid transparent; }
.logistics__name a:hover { border-color: var(--ink); }
.logistics__meta { margin-top: 8px; font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
.logistics__link { flex-shrink: 0; text-decoration: none; font-size: 0.78rem; letter-spacing: 0.18em; text-transform: uppercase; font-weight: 500; color: var(--ink); padding-bottom: 4px; border-bottom: 1px solid var(--ink); }
.logistics__link span { display: inline-block; transition: transform .25s ease; }
.logistics__link:hover span { transform: translateX(4px); }
.logistics + .contact { border-top: 1px solid var(--line); }

/* Nav: six links need a tighter gap and an earlier switch to the menu button */
.nav__links { gap: 28px; }
.nav__links a { white-space: nowrap; }
/* Below 1200px the six links no longer fit: switch to the menu button (same as the phone layout) */
@media (max-width: 1199px) {
  .nav__inner { gap: 16px; }
  .nav__links {
    position: fixed; top: var(--nav-h); left: 0; right: 0; flex-direction: column; gap: 0; margin: 0;
    background: var(--bg); border-bottom: 1px solid var(--line); padding: 8px 32px 20px;
    transform: translateY(-8px); opacity: 0; pointer-events: none; transition: opacity .25s ease, transform .25s ease;
  }
  .nav.is-open .nav__links { opacity: 1; transform: none; pointer-events: auto; }
  .nav.is-open { background: var(--bg); border-color: var(--line); }
  .nav__links a { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav__links a::after { display: none; }
  .nav .btn--sm { margin-left: auto; }
  .nav__toggle { display: block; }
  .nav.is-open .nav__toggle span:first-child { transform: translateY(4px) rotate(45deg); }
  .nav.is-open .nav__toggle span:last-child { transform: translateY(-4px) rotate(-45deg); }
}
@media (max-width: 860px) { .nav__links { padding: 8px 20px 20px; } }
@media (max-width: 860px) {
  .refined { margin-top: 72px; padding-top: 72px; }
  .refined__list li span { font-size: 0.66rem; letter-spacing: 0.12em; }
  .logistics__band { grid-template-columns: 1fr; }
  .logistics__mark { font-size: 140px; line-height: 0.7; height: 56px; }
  .logistics__body { padding-top: 8px; }
  .logistics__quote { margin-top: 28px; }
  .logistics__footer { flex-direction: column; align-items: flex-start; gap: 24px; margin-top: 36px; }
  .logistics__name { font-size: 1.5rem; }
}