/* BurnThalos LLC — field operations company
   Brand: deep navy + ember amber. Clean, professional, deployment-ready. */

:root {
  --navy-950: #0a1424;
  --navy-900: #0d1b30;
  --navy-800: #12263f;
  --navy-700: #1a3554;
  --amber-500: #f59e0b;
  --amber-400: #fbbf24;
  --amber-600: #d97706;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-700: #334155;
  --slate-900: #0f172a;
  --white: #ffffff;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(10, 20, 36, 0.12);
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--slate-700);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; }

.container {
  width: min(1140px, 92%);
  margin: 0 auto;
}

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 20, 36, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(245, 158, 11, 0.18);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--white);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: 0.5px;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--amber-500), var(--amber-600));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--navy-950);
  font-weight: 900;
  font-size: 1.1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--slate-200);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 8px 14px;
  border-radius: 8px;
  transition: background 0.2s, color 0.2s;
}

.nav-links a:hover { background: rgba(255, 255, 255, 0.08); color: var(--white); }
.nav-links a.active { color: var(--amber-400); }

.btn {
  display: inline-block;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 12px 26px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}

.btn-primary {
  background: linear-gradient(135deg, var(--amber-500), var(--amber-600));
  color: var(--navy-950);
  box-shadow: 0 6px 18px rgba(245, 158, 11, 0.35);
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(245, 158, 11, 0.45); }

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.35);
}

.btn-outline:hover { border-color: var(--amber-400); color: var(--amber-400); }

.btn-dark {
  background: var(--navy-900);
  color: var(--white);
}

.nav-cta { margin-left: 10px; padding: 10px 20px; }

.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 1.6rem;
  cursor: pointer;
}

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(1000px 500px at 85% -10%, rgba(245, 158, 11, 0.16), transparent 60%),
    radial-gradient(800px 500px at 10% 110%, rgba(26, 53, 84, 0.9), transparent 60%),
    linear-gradient(180deg, var(--navy-950), var(--navy-900));
  color: var(--white);
  padding: 96px 0 84px;
  position: relative;
  overflow: hidden;
}

.hero-inner { max-width: 760px; }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--amber-400);
  margin-bottom: 18px;
  border: 1px solid rgba(245, 158, 11, 0.4);
  padding: 6px 14px;
  border-radius: 999px;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.hero h1 .accent { color: var(--amber-400); }

.hero p.lead {
  font-size: 1.15rem;
  color: var(--slate-200);
  max-width: 640px;
  margin-bottom: 34px;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Trust strip ---------- */
.trust-strip {
  background: var(--slate-100);
  border-bottom: 1px solid var(--slate-200);
  padding: 22px 0;
}

.trust-items {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  list-style: none;
}

.trust-items li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--navy-800);
}

.trust-items .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--amber-500);
  flex-shrink: 0;
}

/* ---------- Sections ---------- */
.section { padding: 84px 0; }
.section-alt { background: var(--slate-100); }

.section-head { max-width: 680px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

.kicker {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--amber-600);
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  color: var(--navy-950);
  letter-spacing: -0.5px;
  line-height: 1.2;
  margin-bottom: 14px;
}

.section-head p { color: var(--slate-500); font-size: 1.05rem; }

/* ---------- Cards ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 22px;
}

.card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius);
  padding: 30px 26px;
  box-shadow: 0 2px 10px rgba(10, 20, 36, 0.05);
  transition: transform 0.18s, box-shadow 0.2s;
}

.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }

.card-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--navy-800), var(--navy-700));
  color: var(--amber-400);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 18px;
}

.card h3 { color: var(--navy-950); font-size: 1.12rem; margin-bottom: 10px; }
.card p { font-size: 0.96rem; color: var(--slate-500); margin-bottom: 14px; }
.card .link {
  font-weight: 700; font-size: 0.92rem; color: var(--amber-600); text-decoration: none;
}
.card .link:hover { text-decoration: underline; }

/* ---------- Steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 22px;
  counter-reset: step;
  list-style: none;
}

.step {
  position: relative;
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius);
  padding: 28px 24px 26px;
}

.step::before {
  counter-increment: step;
  content: "0" counter(step);
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--amber-500);
  margin-bottom: 10px;
  letter-spacing: -1px;
}

.step h3 { color: var(--navy-950); font-size: 1.05rem; margin-bottom: 8px; }
.step p { font-size: 0.94rem; color: var(--slate-500); }

/* ---------- Industries ---------- */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.industry {
  background: var(--navy-900);
  color: var(--slate-200);
  border-radius: var(--radius);
  padding: 26px 20px;
  text-align: center;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid rgba(245, 158, 11, 0.15);
  transition: border-color 0.2s, transform 0.15s;
}

.industry:hover { border-color: var(--amber-500); transform: translateY(-3px); }
.industry span { display: block; font-size: 1.7rem; margin-bottom: 10px; }

/* ---------- Feature split ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.split h2 {
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  color: var(--navy-950);
  letter-spacing: -0.5px;
  margin-bottom: 16px;
  line-height: 1.25;
}

.split p { color: var(--slate-500); margin-bottom: 16px; }

.check-list { list-style: none; margin: 22px 0 28px; }
.check-list li {
  display: flex; gap: 12px; align-items: flex-start;
  margin-bottom: 14px; font-size: 0.98rem; color: var(--slate-700);
}
.check-list .check {
  flex-shrink: 0;
  width: 24px; height: 24px; border-radius: 50%;
  background: rgba(245, 158, 11, 0.15);
  color: var(--amber-600);
  font-weight: 800;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  margin-top: 2px;
}

.visual-card {
  background: linear-gradient(135deg, var(--navy-900), var(--navy-700));
  border-radius: 20px;
  padding: 44px 38px;
  color: var(--white);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.visual-card::after {
  content: "";
  position: absolute;
  right: -60px; top: -60px;
  width: 220px; height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245,158,11,0.35), transparent 70%);
}

.visual-card h3 { font-size: 1.35rem; margin-bottom: 14px; }
.visual-card p { color: var(--slate-200); font-size: 0.98rem; margin-bottom: 12px; }
.visual-card .big {
  font-size: 2.6rem; font-weight: 800; color: var(--amber-400);
  letter-spacing: -1px; margin: 18px 0 6px;
}
.visual-card .caption { font-size: 0.88rem; color: var(--slate-400); }

/* ---------- CTA banner ---------- */
.cta-banner {
  background: linear-gradient(120deg, var(--navy-950), var(--navy-800));
  border-radius: 20px;
  padding: 60px 48px;
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: "";
  position: absolute;
  left: -80px; bottom: -100px;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245,158,11,0.22), transparent 70%);
}

.cta-banner h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); letter-spacing: -0.5px; margin-bottom: 10px; }
.cta-banner p { color: var(--slate-200); max-width: 520px; }
.cta-banner .btn { position: relative; z-index: 1; }

/* ---------- Service detail rows ---------- */
.service-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  padding: 44px 0;
  border-bottom: 1px solid var(--slate-200);
}

.service-row:last-child { border-bottom: none; }

.service-row:nth-child(even) .service-copy { order: 2; }

.service-copy h3 { color: var(--navy-950); font-size: 1.4rem; margin-bottom: 12px; }
.service-copy p { color: var(--slate-500); margin-bottom: 16px; }

.service-copy ul { list-style: none; margin-bottom: 20px; }
.service-copy ul li {
  padding: 8px 0 8px 28px;
  position: relative;
  font-size: 0.96rem;
  color: var(--slate-700);
}
.service-copy ul li::before {
  content: "→";
  position: absolute; left: 0;
  color: var(--amber-600); font-weight: 800;
}

.service-badge {
  background: var(--slate-100);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius);
  padding: 34px 30px;
}

.service-badge .tag {
  display: inline-block;
  font-size: 0.75rem; font-weight: 700; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--amber-600);
  margin-bottom: 12px;
}
.service-badge h4 { color: var(--navy-950); font-size: 1.15rem; margin-bottom: 10px; }
.service-badge p { font-size: 0.94rem; color: var(--slate-500); }

/* ---------- Values ---------- */
.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 22px;
}
.value {
  border-left: 4px solid var(--amber-500);
  padding: 6px 0 6px 22px;
}
.value h3 { color: var(--navy-950); font-size: 1.08rem; margin-bottom: 8px; }
.value p { font-size: 0.95rem; color: var(--slate-500); }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}

.contact-info { list-style: none; margin-top: 26px; }
.contact-info li {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 16px 0; border-bottom: 1px solid var(--slate-200);
}
.contact-info li:last-child { border-bottom: none; }
.contact-info .icon {
  width: 42px; height: 42px; border-radius: 10px; flex-shrink: 0;
  background: var(--navy-900); color: var(--amber-400);
  display: flex; align-items: center; justify-content: center; font-size: 1.2rem;
}
.contact-info strong { display: block; color: var(--navy-950); font-size: 0.95rem; }
.contact-info span, .contact-info a { font-size: 0.95rem; color: var(--slate-500); text-decoration: none; }
.contact-info a:hover { color: var(--amber-600); }

.form-card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: 18px;
  padding: 36px 32px;
  box-shadow: var(--shadow);
}

.form-card h3 { color: var(--navy-950); margin-bottom: 6px; font-size: 1.25rem; }
.form-card > p { font-size: 0.93rem; color: var(--slate-500); margin-bottom: 22px; }

.field { margin-bottom: 16px; }
.field label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--navy-900); margin-bottom: 6px; }
.field input, .field textarea, .field select {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--slate-200);
  border-radius: 10px;
  font-family: var(--font);
  font-size: 0.95rem;
  color: var(--slate-900);
  background: var(--white);
  transition: border-color 0.2s;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--amber-500);
}
.field textarea { resize: vertical; min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-note { font-size: 0.82rem; color: var(--slate-400); margin-top: 14px; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-950);
  color: var(--slate-400);
  padding: 64px 0 28px;
  margin-top: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 48px;
}

.footer-brand p { font-size: 0.92rem; margin-top: 14px; max-width: 300px; }

.footer-col h4 {
  color: var(--white);
  font-size: 0.9rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a {
  text-decoration: none; font-size: 0.93rem; color: var(--slate-400);
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--amber-400); }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 0.85rem;
}

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  background: linear-gradient(180deg, var(--navy-950), var(--navy-900));
  color: var(--white);
  padding: 72px 0 64px;
}

.page-hero h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  letter-spacing: -1px;
  margin-bottom: 14px;
}

.page-hero p { color: var(--slate-200); max-width: 640px; font-size: 1.08rem; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .split, .service-row, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .service-row:nth-child(even) .service-copy { order: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .hamburger { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 68px; left: 0; right: 0;
    background: var(--navy-950);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 4%;
    border-bottom: 1px solid rgba(245, 158, 11, 0.18);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 14px; }
  .nav-cta { margin: 8px 0 4px; text-align: center; }
  .section { padding: 60px 0; }
  .cta-banner { padding: 44px 28px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}