/* Midnight Fuel Systems LTD — simple industrial theme */
:root{
  --bg: #0b0f14;
  --panel: rgba(15, 22, 30, 0.84);
  --panel-2: rgba(10, 14, 18, 0.75);
  --text: #e9eef5;
  --muted: #b6c1cf;
  --line: rgba(255, 255, 255, 0.12);
  --accent: #f2b705; /* industrial safety yellow */
  --accent-2: #57b8ff; /* optional tech blue */
  --shadow: 0 18px 50px rgba(0,0,0,.45);
  --radius: 16px;
  --max: 1120px;
  --font: system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Helvetica Neue", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

*{ box-sizing: border-box; }
html, body{ height:100%; }
body{
  margin:0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a{ color: inherit; text-decoration: none; }
a:hover{ opacity: .95; }

.skip-link{
  position:absolute; left:-999px; top:auto;
  width:1px; height:1px; overflow:hidden;
}
.skip-link:focus{
  left: 16px; top: 16px;
  width:auto; height:auto;
  padding:10px 14px;
  background:#111a24;
  border:1px solid var(--line);
  border-radius: 10px;
  z-index: 9999;
}

.topbar{
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
  background: rgba(11, 15, 20, 0.72);
  border-bottom: 1px solid var(--line);
}

.container{
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 16px;
  padding: 14px 0;
}

.brand{
  display:flex;
  align-items:center;
  gap: 12px;
  font-weight: 750;
  letter-spacing: .4px;
  text-transform: uppercase;
}

.brand-mark{
  width: 34px;
  height: 34px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(242,183,5,.25), rgba(87,184,255,.12)),
    radial-gradient(circle at 30% 30%, rgba(242,183,5,.35), transparent 60%),
    rgba(15, 22, 30, 0.9);
  box-shadow: 0 12px 25px rgba(0,0,0,.35);
}


.brand-logo{
  width: 42px;
  height: auto;
  display: block;
  filter: drop-shadow(0 0 6px rgba(242,183,5,0.6));
}
.brand small{
  display:block;
  font-weight: 600;
  font-size: 12px;
  color: var(--muted);
  text-transform: none;
  letter-spacing: 0;
}

.navlinks{
  display:flex;
  align-items:center;
  gap: 14px;
  flex-wrap: wrap;
}

.navlinks a{
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid transparent;
  color: var(--muted);
}

.navlinks a[aria-current="page"]{
  color: var(--text);
  border-color: var(--line);
  background: rgba(255,255,255,0.04);
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 10px;
  padding: 11px 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.03);
  color: var(--text);
  cursor:pointer;
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
}

.btn:hover{ transform: translateY(-1px); border-color: rgba(255,255,255,0.18); background: rgba(255,255,255,0.05); }
.btn:active{ transform: translateY(0px); }

.btn-primary{
  border-color: rgba(242,183,5,.35);
  background: linear-gradient(180deg, rgba(242,183,5,.20), rgba(242,183,5,.10));
}

.btn-primary .dot{
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 18px rgba(242,183,5,.55);
}

.hero{
  position: relative;
  min-height: 74vh;
  display:flex;
  align-items:center;
  padding: 34px 0 56px;
  isolation: isolate;
}

.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(90deg, rgba(11,15,20,.92) 0%, rgba(11,15,20,.72) 40%, rgba(11,15,20,.45) 70%, rgba(11,15,20,.85) 100%),
    url("tank-hero.png") center/cover no-repeat;
  filter: saturate(1.05) contrast(1.05);
  z-index:-2;
}

.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 30% 25%, rgba(87,184,255,.14), transparent 55%),
    radial-gradient(circle at 65% 60%, rgba(242,183,5,.10), transparent 55%),
    linear-gradient(180deg, rgba(0,0,0,.0), rgba(0,0,0,.45));
  z-index:-1;
}

.hero-grid{
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 22px;
  align-items: stretch;
}

.hero-grid-single{
  grid-template-columns: 1fr;
}

@media (max-width: 900px){
  .hero{ min-height: auto; }
  .hero-grid{ grid-template-columns: 1fr; }
}

.card{
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.card-pad{ padding: 22px; }

.kicker{
  display:flex;
  align-items:center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .7px;
  color: var(--muted);
  text-transform: uppercase;
}

.kicker .bar{
  width: 22px;
  height: 2px;
  background: var(--accent);
  border-radius: 10px;
  box-shadow: 0 0 18px rgba(242,183,5,.45);
}

h1{
  margin: 10px 0 10px;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.08;
  letter-spacing: .3px;
}

.lead{
  color: var(--text);
  font-size: 15.5px;
  margin: 0 0 16px;
}

.lead p{ margin: 0 0 10px; }
.lead p:last-child{ margin-bottom: 0; }

.meta{
  display:flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.pill{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 9px 10px;
  border-radius: 999px;
  border: 1px dashed rgba(255,255,255,0.20);
  background: rgba(255,255,255,0.03);
  color: var(--muted);
  font-size: 13px;
}

.pill b{
  color: var(--text);
  font-weight: 700;
}

.aside{
  background: var(--panel-2);
}

.aside h2{
  font-size: 18px;
  margin: 0 0 10px;
  letter-spacing: .2px;
}

.list{
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}
.list li{ margin: 8px 0; }

.footer{
  border-top: 1px solid var(--line);
  background: rgba(11,15,20,.92);
  padding: 22px 0;
  color: var(--muted);
  font-size: 13px;
}
.footer strong{ color: var(--text); }

.form-wrap{
  padding: 34px 0 54px;
}

.form-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
@media (max-width: 800px){
  .form-grid{ grid-template-columns: 1fr; }
}

label{
  display:block;
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 6px;
}

input, textarea, select{
  width: 100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.16);
  background: rgba(255,255,255,0.03);
  color: var(--text);
  outline: none;
}
/* Ensure checkbox/radio controls don't inherit full-width input styling */
input[type="checkbox"],
input[type="radio"] {
  width: auto;
  padding: 0;
  border-radius: 0;
  border: 0;
  background: transparent;
  display: inline-block;
  vertical-align: middle;
}

.checks .check {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.22);
  margin: 10px 0;
}

.checks .check input {
  flex: 0 0 auto;
  margin: 0;
}
input:focus, textarea:focus, select:focus{
  border-color: rgba(242,183,5,.45);
  box-shadow: 0 0 0 4px rgba(242,183,5,.12);
}

textarea{ min-height: 120px; resize: vertical; }

.note{
  font-size: 12.5px;
  color: var(--muted);
  margin-top: 10px;
}

.actions{
  display:flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 14px;
}

/* Product showcase helpers */
.page{
  padding: 34px 0 54px;
}

.section{
  margin-top: 18px;
}

.muted{
  color: var(--muted);
}

.h3{
  margin: 8px 0 8px;
  font-size: 16px;
  letter-spacing: .2px;
}

.card-lite{
  background: rgba(255,255,255,0.02);
}

.btn[aria-current="page"]{
  border-color: rgba(87,184,255,.35);
  background: linear-gradient(180deg, rgba(87,184,255,.16), rgba(87,184,255,.06));
}

.grid-3{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

@media (max-width: 900px){
  .grid-3{ grid-template-columns: 1fr; }
}

.gallery{
  display:grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 14px;
}

.media{
  grid-column: span 6;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255,255,255,0.02);
  overflow: hidden;
}

.media-img{
  width: 100%;
  height: 260px;
  object-fit: cover;
  display:block;
}

.media-cap{
  padding: 10px 12px;
  font-size: 12.5px;
  color: var(--muted);
  border-top: 1px solid rgba(255,255,255,0.10);
}

@media (max-width: 900px){
  .media{ grid-column: span 12; }
  .media-img{ height: 220px; }
}

/* FAQ */
.faq{
  display:grid;
  gap: 12px;
}

.faq-item{
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 14px;
  background: rgba(255,255,255,0.02);
  overflow: hidden;
}

.faq-q{
  padding: 12px 14px;
  font-weight: 750;
  letter-spacing: .2px;
  color: var(--text);
  border-bottom: 1px solid rgba(255,255,255,0.10);
  background: rgba(242,183,5,0.06);
}

.faq-a{
  padding: 12px 14px;
  color: var(--muted);
}

.faq-a .list{ color: var(--muted); }