:root{
    --ink:#0D2430;
    --ink-2:#15323F;
    --surface:#ECEFE9;
    --surface-2:#DDE2D9;
    --paper:#F6F5F0;
    --steel:#54626A;
    --amber:#E0A400;
    --amber-dim:#8A6A18;
    --rust:#7A311D;
    --line: rgba(13,36,48,0.14);
    --line-light: rgba(246,245,240,0.18);
    --radius: 2px;
    --max: 1180px;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:'IBM Plex Sans', sans-serif;
    color:var(--ink);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{
    font-family:'Big Shoulders Display', sans-serif;
    text-transform:uppercase;
    letter-spacing:0.01em;
    margin:0;
    font-weight:700;
  }
  a{color:inherit; text-decoration:none;}
  .wrap{max-width:var(--max); margin:0 auto; padding:0 28px;}
  .mono{font-family:'IBM Plex Mono', monospace;}
  .eyebrow{
    font-family:'IBM Plex Mono', monospace;
    font-size:0.72rem;
    letter-spacing:0.18em;
    text-transform:uppercase;
    color:var(--amber-dim);
    display:flex; align-items:center; gap:10px;
  }
  .eyebrow::before{content:""; width:22px; height:1px; background:var(--amber-dim);}
  reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity .7s ease, transform .7s ease;
}

.reveal.in {
    opacity: 1;
    transform: translateY(0);
}

  /* ---------- HEADER ---------- */
  header{
    position:sticky; top:0; z-index:40;
    background:#0d2430;
    border-bottom:1px solid rgba(255,255,255,0.08);
  }
  .nav{
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 28px;
    max-width: var(--max);
    margin: 0 auto;
  }
  .brand{
    display:flex; align-items:center; gap:12px;
    color:var(--paper);
  }
  .brand-mark{
    width:34px; height:34px; flex:none;
  }
  .brand-text{
    font-family:'Big Shoulders Display', sans-serif;
    font-weight:700; font-size:1.05rem; letter-spacing:0.02em;
    line-height:1.05;
  }
  .brand-text small{
    display:block; font-family:'IBM Plex Mono', monospace;
    text-transform:none; font-weight:400; letter-spacing:0.06em;
    font-size:0.62rem; color:var(--amber); margin-top:2px;
  }
  nav ul{list-style:none; display:flex; gap:30px; margin:0; padding:0;}
  nav ul li a{
    color:rgba(246,245,240,0.78);
    font-size:0.88rem; font-weight:500;
    padding:6px 0; border-bottom:1px solid transparent;
    transition:color .2s, border-color .2s;
  }
  nav ul li a:hover{ color:var(--paper); border-color:var(--amber);}
  .nav-cta{
    background:var(--amber); color:var(--ink); font-weight:600;
    font-size:0.82rem; padding:10px 18px; border-radius:var(--radius);
    letter-spacing:0.02em;
  }
  .nav-cta:hover{ background:#f0b520; }
  .nav-right{display: flex;
    align-items: center;
    gap: 26px;}
#navlinks {
    list-style: none;
    display: flex;
    gap: 30px;
    margin: 0;
    padding: 0;
}

  .menu-toggle{display:none; background:none; border:none; color:var(--paper); font-size:1.4rem; cursor:pointer;}
 /* ---------- CAREERS ---------- */
.careers{ background:var(--paper);}
.career-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:1px; background:var(--line); border:1px solid var(--line); margin-bottom:44px;}
.career-card{ background:var(--paper); padding:30px 28px; display:flex; flex-direction:column; gap:14px;}
.career-top{ display:flex; align-items:center; justify-content:space-between; gap:12px;}
.career-top h3{ font-size:1.2rem;}
.career-card p{ color:var(--steel); font-size:0.9rem; line-height:1.6; margin:0;}
.career-meta{ display:flex; gap:18px; font-size:0.72rem; color:var(--steel); letter-spacing:0.04em;}
.btn-small{ padding:9px 18px; font-size:0.8rem; align-self:flex-start; border-color:var(--ink); color:var(--ink);}
.btn-small:hover{ border-color:var(--rust); color:var(--rust);}
.career-cta{
  display:flex; align-items:center; justify-content:space-between; gap:24px; flex-wrap:wrap;
  background:var(--surface); padding:32px 34px; border-left:3px solid var(--amber);
}
.career-cta p{ color:var(--steel); font-size:0.95rem; margin:0; max-width:46ch;}
@media (max-width:760px){ .career-grid{ grid-template-columns:1fr;} }

/* Mobile */
@media (max-width: 768px) {

    .menu-toggle {
        display: block;
    }

    .nav-right {
        position: relative;
    }

    #navlinks {
        display: none;
        position: absolute;
        top: 60px;
        right: 0;
        width: 240px;
        background: #0f172a;
        flex-direction: column;
        gap: 0;
        border-radius: 8px;
        overflow: hidden;
        z-index: 1000;
    }

    #navlinks li {
        width: 100%;
    }

    #navlinks li a {
        display: block;
        padding: 15px 20px;
        border-bottom: 1px solid rgba(255,255,255,0.08);
        
    }

    #navlinks.open {
        display: flex;
    }

    .nav-cta {
        display: none;
    }
}
  @media (max-width:900px){
    nav ul{
      position:absolute; top:100%; left:0; right:0;
      background:var(--ink); flex-direction:column; gap:0;
      max-height:0; overflow:hidden; transition:max-height .3s ease;
      border-top:1px solid rgba(255,255,255,0.08);
    }
    nav ul.open{max-height:400px;}
    nav ul li{padding:0 28px;}
    nav ul li a{display:block; padding:14px 0;}
    .nav-cta{display:none;}
    .menu-toggle{display:block;}
  }

  /* ---------- HERO ---------- */
  .hero{
    background:radial-gradient(circle at 78% 18%, #123544 0%, var(--ink) 55%);
    color:var(--paper);
    padding:76px 0 0;
    overflow:hidden;
  }
  .hero-grid{
    display:grid; grid-template-columns:1.05fr 0.95fr; gap:40px; align-items:center;
  }
  .hero h1{
    font-size:clamp(2.6rem, 4.6vw, 4.1rem);
    line-height:0.98;
    color:var(--paper);
  }
  .hero h1 em{ font-style:normal; color:var(--amber);}
  .hero p.lede{
    font-size:1.05rem; line-height:1.6; color:rgba(246,245,240,0.8);
    max-width:46ch; margin:22px 0 30px;
  }
  .hero-actions{ display:flex; gap:14px; flex-wrap:wrap;}
  .btn{
    display:inline-block; padding:13px 24px; font-weight:600; font-size:0.9rem;
    border-radius:var(--radius); letter-spacing:0.02em; transition:transform .15s ease, background .2s;
  }
  .btn-primary{ background:var(--amber); color:var(--ink);}
  .btn-primary:hover{ transform:translateY(-1px); background:#f0b520;}
  .btn-ghost{ border:1px solid rgba(246,245,240,0.35); color:var(--paper);}
  .btn-ghost:hover{ border-color:var(--paper);}
  .hero-figure{ position:relative; }
  .hero-bottom{
    margin-top:52px; border-top:1px solid rgba(246,245,240,0.14);
    padding:20px 0; display:flex; gap:0; flex-wrap:wrap;
  }
  .hero-bottom .stat{ flex:1; min-width:150px; padding:14px 20px; border-left:1px solid rgba(246,245,240,0.14);}
  .hero-bottom .stat:first-child{ border-left:none; padding-left:0;}
  .stat .num{ font-family:'Big Shoulders Display'; font-size:2.1rem; color:var(--amber); line-height:1;}
  .stat .lbl{ font-family:'IBM Plex Mono'; font-size:0.68rem; letter-spacing:0.08em; text-transform:uppercase; color:rgba(246,245,240,0.55); margin-top:6px;}

  /* schematic svg */
  .schematic-caption{
    font-family:'IBM Plex Mono'; font-size:0.65rem; letter-spacing:0.06em;
    color:rgba(246,245,240,0.45); text-align:right; margin-top:8px;
  }

  /* ---------- SECTION SHELLS ---------- */
  section{ padding:96px 0; scroll-margin-top:84px;}
  .hero{ scroll-margin-top:0;}
  .section-head{ max-width:640px; margin-bottom:52px;}
  .section-head h2{ font-size:clamp(1.9rem, 3vw, 2.6rem); margin-top:14px;}
  .section-head p{ color:var(--steel); font-size:1rem; line-height:1.65; margin-top:16px;}

  /* ---------- ABOUT ---------- */
  .about{ background:var(--surface);}
  .about-grid{ display:grid; grid-template-columns:0.9fr 1.1fr; gap:60px; align-items:start;}
  .about-grid p{ color:var(--steel); line-height:1.75; font-size:1.02rem; margin:0 0 18px;}
  .fact-list{ list-style:none; margin:28px 0 0; padding:0; display:grid; gap:16px;}
  .fact-list li{
    display:grid; grid-template-columns:70px 1fr; gap:16px; align-items:baseline;
    padding-bottom:16px; border-bottom:1px solid var(--line);
    font-size:0.92rem; color:var(--steel);
  }
  .fact-list li .k{ font-family:'IBM Plex Mono'; color:var(--rust); font-weight:500;}

  /* ---------- SERVICES ---------- */
  .services{ background:var(--paper);}
  .service-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line); border:1px solid var(--line);}
  .service-card{ background:var(--paper); padding:34px 28px; display:flex; flex-direction:column; gap:16px; min-height:270px;}
  .service-card .idx{ font-family:'IBM Plex Mono'; color:var(--rust); font-size:0.8rem;}
  .service-card h3{ font-size:1.3rem;}
  .service-card p{ color:var(--steel); font-size:0.9rem; line-height:1.6; flex:1;}
  .service-card a{ font-family:'IBM Plex Mono'; font-size:0.72rem; letter-spacing:0.06em; text-transform:uppercase; color:var(--ink); border-bottom:1px solid var(--ink); align-self:flex-start; padding-bottom:2px;}
  .service-card a:hover{ color:var(--rust); border-color:var(--rust);}
  @media (max-width:960px){ .service-grid{ grid-template-columns:repeat(2,1fr);} }
  @media (max-width:600px){ .service-grid{ grid-template-columns:1fr;} }

  /* ---------- TERMINAL / TANK TABLE ---------- */
  .terminal{ background:var(--ink); color:var(--paper);}
  .terminal .section-head p{ color:rgba(246,245,240,0.65);}
  .terminal .eyebrow{ color:var(--amber);}
  .terminal .eyebrow::before{ background:var(--amber);}
  .tank-table{ width:100%; border-collapse:collapse; font-size:0.9rem;}
  .tank-table thead th{
    text-align:left; font-family:'IBM Plex Mono'; font-weight:500; font-size:0.7rem;
    letter-spacing:0.08em; text-transform:uppercase; color:rgba(246,245,240,0.5);
    padding:12px 16px; border-bottom:1px solid rgba(246,245,240,0.2);
  }
  .tank-table tbody td{
    padding:16px; border-bottom:1px solid rgba(246,245,240,0.1);
    color:rgba(246,245,240,0.88);
  }
  .tank-table tbody tr:hover{ background:rgba(246,245,240,0.04);}
  .tag{
    display:inline-block; font-family:'IBM Plex Mono'; font-size:0.68rem;
    padding:3px 8px; border:1px solid rgba(246,245,240,0.25); border-radius:20px; color:rgba(246,245,240,0.7);
  }
  .cap-bar{ width:120px; height:6px; background:rgba(246,245,240,0.15); position:relative; border-radius:3px; overflow:hidden;}
  .cap-bar span{ position:absolute; left:0; top:0; bottom:0; background:var(--amber); border-radius:3px;}

  /* ---------- SAFETY ---------- */
  .safety{ background:var(--surface);}
  .safety-grid{ display:grid; grid-template-columns:repeat(4, 1fr); gap:28px;}
  .safety-item{ padding:26px 0 0; border-top:2px solid var(--ink);}
  .safety-item h4{ font-size:1.05rem; margin-bottom:10px;}
  .safety-item p{ color:var(--steel); font-size:0.88rem; line-height:1.6;}
  @media (max-width:900px){ .safety-grid{ grid-template-columns:repeat(2,1fr);} }
  @media (max-width:560px){ .safety-grid{ grid-template-columns:1fr;} }

  /* ---------- QUOTE FORM ---------- */
  .quote{ background:var(--paper);}
  .quote-panel{
    display:grid; grid-template-columns:0.85fr 1.15fr; background:var(--ink); color:var(--paper);
    border-radius:var(--radius); overflow:hidden;
  }
  .quote-info{ padding:52px 44px; background:#0A1D27;}
  .quote-info .eyebrow{ color:var(--amber);}
  .quote-info .eyebrow::before{ background:var(--amber);}
  .quote-info h2{ font-size:2rem; margin-top:16px; color:var(--paper);}
  .quote-info p{ color:rgba(246,245,240,0.68); margin-top:16px; line-height:1.6; font-size:0.94rem;}
  .quote-info .contact-line{ margin-top:34px; font-family:'IBM Plex Mono'; font-size:0.85rem; color:var(--amber);}
  .quote-form{ padding:52px 44px; display:grid; gap:18px;}
  .form-row{ display:grid; grid-template-columns:1fr 1fr; gap:18px;}
  .field label{ display:block; font-family:'IBM Plex Mono'; font-size:0.68rem; letter-spacing:0.08em; text-transform:uppercase; color:rgba(246,245,240,0.55); margin-bottom:8px;}
  .field input, .field select, .field textarea{
    width:100%; background:rgba(246,245,240,0.06); border:1px solid rgba(246,245,240,0.2);
    color:var(--paper); padding:12px 14px; font-family:'IBM Plex Sans'; font-size:0.92rem; border-radius:var(--radius);
  }
  .field input:focus, .field select:focus, .field textarea:focus{ outline:2px solid var(--amber); outline-offset:1px; border-color:var(--amber);}
  .field textarea{ resize:vertical; min-height:90px;}
  .quote-form .btn-primary{ justify-self:start; border:none; cursor:pointer; font-family:'IBM Plex Sans';}
  @media (max-width:860px){ .quote-panel{ grid-template-columns:1fr;} .form-row{ grid-template-columns:1fr;} }

  /* ---------- TESTIMONIALS ---------- */
  .testimonials{ background:var(--surface);}
  .testi-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:28px;}
  .testi-card{ background:var(--paper); padding:30px 28px; border-left:3px solid var(--amber);}
  .testi-card p{ color:var(--ink); font-size:0.96rem; line-height:1.65; margin:0 0 22px;}
  .testi-card .who{ font-family:'IBM Plex Mono'; font-size:0.78rem; color:var(--steel);}
  .testi-card .who b{ color:var(--ink); font-family:'IBM Plex Sans'; font-size:0.92rem; display:block; margin-bottom:2px;}
  @media (max-width:900px){ .testi-grid{ grid-template-columns:1fr;} }

  /* ---------- FOOTER ---------- */
  footer{ background:var(--ink); color:rgba(246,245,240,0.7); padding:70px 0 26px;}
  .footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1.1fr; gap:40px; padding-bottom:50px; border-bottom:1px solid rgba(246,245,240,0.12);}
  .footer-grid h4{ color:var(--paper); font-size:0.95rem; margin-bottom:18px; letter-spacing:0.04em;}
  .footer-brand .brand-text{ color:var(--paper);}
  .footer-brand p{ margin-top:16px; font-size:0.88rem; line-height:1.6; max-width:32ch;}
  .footer-grid ul{ list-style:none; padding:0; margin:0; display:grid; gap:11px; font-size:0.88rem;}
  .footer-grid ul li a:hover{ color:var(--amber);}
  .foot-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:24px; font-size:0.8rem; flex-wrap:wrap; gap:12px;}
  .foot-bottom .socials{ display:flex; gap:16px;}
  .foot-bottom .socials a{ color:rgba(246,245,240,0.55);}
  .foot-bottom .socials a:hover{ color:var(--amber);}

  @media (max-width:900px){
    .hero-grid, .about-grid, .quote-panel{ grid-template-columns:1fr;}
    .footer-grid{ grid-template-columns:1fr 1fr;}
  }
  @media (max-width:600px){
    .footer-grid{ grid-template-columns:1fr;}
    section{ padding:64px 0;}
  }