:root {
  --steel-900: #14181d;
  --steel-800: #1d2329;
  --steel-700: #2a323b;
  --steel-500: #4a5763;
  --steel-300: #98a4af;
  --steel-100: #e7ecf0;
  --paper: #f6f8fa;
  --white: #ffffff;
  --bolt: #f5a623;      /* thunderbird amber */
  --bolt-dark: #d8870c;
  --spark: #e8453c;     /* accent red */
  --maxw: 1140px;
  --radius: 10px;
  --shadow: 0 10px 30px rgba(20, 24, 29, 0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  color: var(--steel-800);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: "Barlow Condensed", "Inter", sans-serif;
  line-height: 1.05;
  margin: 0 0 0.4em;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  font-family: "Barlow Condensed", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 600;
  color: var(--bolt-dark);
  margin: 0 0 0.6em;
  font-size: 0.95rem;
}

a { color: inherit; }

/* Top bar */
.topbar {
  background: var(--steel-900);
  color: var(--steel-300);
  font-size: 0.85rem;
  border-bottom: 1px solid var(--steel-700);
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 38px;
}
.topbar-item { letter-spacing: 0.08em; text-transform: uppercase; font-weight: 600; }
.topbar-contact { display: flex; gap: 22px; }
.topbar-contact a { color: var(--steel-100); text-decoration: none; }
.topbar-contact a:hover { color: var(--bolt); }

/* Buttons */
.btn {
  display: inline-block;
  background: var(--bolt);
  color: var(--steel-900);
  font-weight: 700;
  font-family: "Barlow Condensed", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 1.05rem;
  padding: 14px 28px;
  border-radius: var(--radius);
  text-decoration: none;
  border: 2px solid var(--bolt);
  cursor: pointer;
  transition: transform 0.12s ease, background 0.2s ease, box-shadow 0.2s ease;
}
.btn:hover { background: var(--bolt-dark); border-color: var(--bolt-dark); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-outline { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.6); }
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: var(--white); }
.btn-sm { padding: 9px 18px; font-size: 0.95rem; }
.btn-block { width: 100%; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(20, 24, 29, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--steel-700);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--white);
}
.brand-mark {
  width: 36px;
  height: 36px;
  fill: var(--bolt);
  flex-shrink: 0;
  overflow: visible;
  filter: drop-shadow(0 2px 6px rgba(245, 166, 35, 0.4));
}
.brand-text { display: flex; flex-direction: column; line-height: 1; }
.brand-text strong {
  font-family: "Barlow Condensed", sans-serif;
  font-size: 1.35rem;
  letter-spacing: 0.08em;
}
.brand-text small {
  font-family: "Barlow Condensed", sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.32em;
  color: var(--steel-300);
}
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
  color: var(--steel-100);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.98rem;
  transition: color 0.18s ease;
}
.nav-links a:hover { color: var(--bolt); }
.nav-links a.btn { color: var(--steel-900); }
.nav-links a.btn:hover { color: var(--steel-900); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  width: 26px;
  height: 2px;
  background: var(--white);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* Hero */
.hero {
  position: relative;
  color: var(--white);
  background:
    linear-gradient(120deg, rgba(20,24,29,0.92), rgba(20,24,29,0.6)),
    url("images/hero.jpg") center/cover no-repeat,
    #1d2329;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(245,166,35,0.18), transparent 45%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 2;
  padding: 96px 24px 88px;
  max-width: 860px;
}
.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  margin-bottom: 0.3em;
}
.hero h1 span { color: var(--bolt); display: block; }
.hero-sub {
  font-size: 1.2rem;
  color: var(--steel-100);
  max-width: 620px;
  margin: 0 0 2em;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 3rem; }
.hero-stats {
  display: flex;
  gap: 48px;
  list-style: none;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
  border-top: 1px solid var(--steel-700);
  padding-top: 28px;
}
.hero-stats li { display: flex; flex-direction: column; }
.hero-stats strong {
  font-family: "Barlow Condensed", sans-serif;
  font-size: 2.2rem;
  color: var(--bolt);
  line-height: 1;
}
.hero-stats span { color: var(--steel-300); font-size: 0.95rem; }

/* Sections */
.section { padding: 88px 0; }
.section-alt { background: var(--paper); }
.section-dark { background: var(--steel-900); color: var(--white); }
.section-head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.section-head h2 { font-size: clamp(2rem, 4vw, 3rem); }
.section-head .lead { color: var(--steel-500); font-size: 1.12rem; }
.section-dark .section-head .lead { color: var(--steel-300); }

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

/* Cards */
.card {
  background: var(--white);
  border: 1px solid var(--steel-100);
  border-radius: var(--radius);
  padding: 32px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--bolt); }
.card-icon {
  font-size: 1.8rem;
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  background: var(--steel-900);
  border-radius: var(--radius);
  margin-bottom: 18px;
}
.card h3 { font-size: 1.5rem; }
.card p { margin: 0; color: var(--steel-500); }

/* Sell Us Pipe */
.sell-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
}
.sell-copy h2 { font-size: clamp(2rem, 4vw, 2.8rem); }
.sell-copy > p { color: var(--steel-300); font-size: 1.08rem; max-width: 460px; }
.sell-points { list-style: none; padding: 0; margin: 22px 0 28px; }
.sell-points li {
  padding: 8px 0 8px 30px;
  position: relative;
  color: var(--steel-100);
}
.sell-points li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--bolt);
  font-weight: 700;
}
.sell-steps { display: grid; gap: 16px; }
.step {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  background: var(--steel-800);
  border: 1px solid var(--steel-700);
  border-radius: var(--radius);
  padding: 22px 24px;
}
.step-num {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  background: var(--bolt);
  color: var(--steel-900);
  font-family: "Barlow Condensed", sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  border-radius: 8px;
}
.step h3 { font-size: 1.3rem; margin-bottom: 0.15em; color: var(--white); }
.step p { margin: 0; color: var(--steel-300); }

/* Gallery placeholders */
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.shot {
  position: relative;
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 6px 18px rgba(20,24,29,0.12);
}
.shot img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.shot:hover img { transform: scale(1.06); }
.shot figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 26px 16px 12px;
  color: var(--white);
  font-family: "Barlow Condensed", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 1.05rem;
  font-weight: 600;
  background: linear-gradient(to top, rgba(20,24,29,0.85), transparent);
}

/* Testimonials */
.quote {
  margin: 0;
  background: var(--white);
  border: 1px solid var(--steel-100);
  border-top: 3px solid var(--bolt);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: 0 4px 14px rgba(20,24,29,0.05);
}
.quote p { color: var(--steel-700); font-size: 1.05rem; font-style: italic; margin: 0 0 16px; }
.quote cite {
  font-style: normal;
  font-weight: 600;
  color: var(--steel-500);
  font-size: 0.9rem;
}

/* Features */
.feature {
  padding: 28px;
  border-left: 3px solid var(--bolt);
  background: var(--white);
  border-radius: 0 var(--radius) var(--radius) 0;
  box-shadow: 0 4px 14px rgba(20,24,29,0.05);
}
.feature h3 { font-size: 1.35rem; }
.feature p { margin: 0; color: var(--steel-500); }

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 56px;
  align-items: center;
}
.about-copy p { color: var(--steel-500); font-size: 1.08rem; margin-bottom: 1.2em; }
.about-copy .btn { margin-top: 8px; }
.about-points {
  list-style: none;
  padding: 28px;
  margin: 0;
  background: var(--steel-900);
  color: var(--steel-100);
  border-radius: var(--radius);
}
.about-points li {
  padding: 16px 0;
  border-bottom: 1px solid var(--steel-700);
}
.about-points li:last-child { border-bottom: 0; }
.about-points strong { color: var(--bolt); }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.contact-info h2 { font-size: clamp(2rem, 4vw, 2.8rem); }
.contact-info > p { color: var(--steel-300); font-size: 1.1rem; max-width: 440px; }
.contact-list { list-style: none; padding: 0; margin: 32px 0 0; }
.contact-list li {
  display: flex;
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid var(--steel-700);
  align-items: baseline;
}
.contact-label {
  font-family: "Barlow Condensed", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--bolt);
  font-size: 0.85rem;
  min-width: 70px;
}
.contact-list a { color: var(--white); text-decoration: none; }
.contact-list a:hover { color: var(--bolt); }

.contact-form {
  background: var(--white);
  color: var(--steel-800);
  padding: 36px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.field { margin-bottom: 18px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 6px;
  color: var(--steel-700);
}
.field input,
.field textarea,
.field select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--steel-300);
  border-radius: 8px;
  font: inherit;
  color: var(--steel-900);
  background: var(--paper);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--bolt);
  box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.2);
  background: var(--white);
}
.field textarea { resize: vertical; }
.form-note { margin: 14px 0 0; font-size: 0.95rem; min-height: 1.2em; }
.form-note.ok { color: #1f9d57; }
.form-note.err { color: var(--spark); }

/* Footer */
.site-footer {
  background: var(--steel-900);
  color: var(--steel-300);
  padding: 48px 0;
  border-top: 1px solid var(--steel-700);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
}
.footer-tag { margin: 4px 0 0; color: var(--steel-100); }
.footer-contact { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; justify-content: center; }
.footer-contact a { color: var(--bolt); text-decoration: none; font-weight: 600; }
.footer-contact a:hover { text-decoration: underline; }
.footer-copy { margin: 6px 0 0; font-size: 0.9rem; }

/* Responsive */
@media (max-width: 860px) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .about-grid, .contact-grid, .sell-grid { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr 1fr; }
  .topbar-item { display: none; }
  .topbar-inner { justify-content: center; }
}
@media (max-width: 640px) {
  .nav-links {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--steel-900);
    padding: 18px 24px 28px;
    gap: 18px;
    border-bottom: 1px solid var(--steel-700);
    transform: translateY(-120%);
    transition: transform 0.25s ease;
    align-items: stretch;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-toggle { display: flex; }
  .grid-3 { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .hero-stats { gap: 28px; }
  .section { padding: 64px 0; }
  .topbar-contact { gap: 14px; font-size: 0.8rem; }
}