:root {
  --navy-900: #003366;
  --navy-700: #0a4a8a;
  --gold-500: #F5A623;
  --green-500: #4CAF50;
  --white: #FFFFFF;
  --gray-100: #F5F5F5;
  --gray-300: #dfe3e6;
  --ink: #333333;
  --ink-soft: #5b6570;

  --font-display: -apple-system, "Segoe UI Semibold", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-body: -apple-system, "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;

  --container-w: 1200px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 64px;
  --space-8: 96px;

  --radius: 6px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(0, 0, 0, 0.06);
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.55;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--navy-900);
  font-weight: 800;
  line-height: 1.2;
  margin: 0 0 var(--space-3);
}

h1 { font-size: 34px; }
h2 { font-size: 26px; }
h3 { font-size: 19px; }

p {
  margin: 0 0 var(--space-3);
}

ul, ol {
  margin: 0 0 var(--space-3);
  padding-left: 1.2em;
}

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

a {
  color: var(--navy-700);
  text-decoration-color: rgba(10, 74, 138, 0.35);
}

a:hover {
  text-decoration-color: currentColor;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--gold-500);
  outline-offset: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: var(--space-3);
  top: -50px;
  background: var(--navy-900);
  color: var(--white);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius);
  z-index: 1000;
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: var(--space-3);
}

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

/* Header / Nav */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--navy-900);
  min-height: 80px;
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--white);
  text-decoration: none;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  background: var(--gold-500);
  color: var(--navy-900);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.03em;
  font-size: 15px;
}

.brand-sub {
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold-500);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: 0;
  padding: var(--space-2);
  cursor: pointer;
}

.nav-toggle-bar {
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  color: var(--white);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  padding: var(--space-2) 0;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  border-bottom-color: var(--gold-500);
}

.site-nav .nav-cta {
  background: var(--gold-500);
  color: var(--navy-900);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius);
  border-bottom: none;
}

.site-nav .nav-cta:hover {
  background: #e5951a;
}

@media (max-width: 900px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--navy-900);
    padding: var(--space-3) var(--space-4) var(--space-5);
    display: none;
  }

  .site-nav.is-open {
    display: block;
  }

  .site-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }

  .site-nav .nav-cta {
    display: inline-block;
  }
}

/* Buttons */

.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn-primary {
  background: var(--gold-500);
  color: var(--navy-900);
}

.btn-primary:hover {
  background: #e5951a;
}

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

.btn-secondary:hover {
  background: var(--navy-700);
  border-color: var(--navy-700);
}

.btn-outline {
  background: transparent;
  color: var(--navy-900);
  border-color: var(--navy-900);
}

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

/* Hero */

.hero {
  background: linear-gradient(135deg, var(--navy-900), #012247);
  color: var(--white);
  padding: var(--space-7) 0;
}

.hero-inner {
  max-width: 700px;
}

.hero h1 {
  color: var(--white);
  margin-bottom: var(--space-3);
}

.hero p {
  font-size: 18px;
  color: #d7e2ee;
}

.hero-ctas {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-top: var(--space-4);
}

.page-hero {
  background: var(--navy-900);
  color: var(--white);
  padding: var(--space-6) 0;
}

.page-hero h1 {
  color: var(--white);
  margin: 0;
}

.page-hero p {
  color: #d7e2ee;
  margin: var(--space-2) 0 0;
}

/* Sections */

section {
  padding: var(--space-7) 0;
}

.section-alt {
  background: var(--gray-100);
}

.section-head {
  max-width: 640px;
  margin: 0 auto var(--space-6);
  text-align: center;
}

.eyebrow {
  display: inline-block;
  color: var(--gold-500);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

/* Grids / Cards */

.grid {
  display: grid;
  gap: var(--space-5);
}

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

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 900px) {
  .grid-3, .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  padding: var(--space-4);
  box-shadow: var(--shadow);
}

.card-icon {
  width: 44px;
  height: 44px;
  color: var(--navy-900);
  margin-bottom: var(--space-3);
}

.feature-card {
  text-align: left;
}

.category-card,
.equipment-card,
.product-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.category-card h3,
.equipment-card h3,
.product-card h3 {
  margin-bottom: 0;
}

.tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--navy-900);
  background: var(--gray-100);
  border-radius: 999px;
  padding: 2px 10px;
  margin-right: var(--space-1);
}

.quote-price {
  font-weight: 700;
  color: var(--green-500);
}

.placeholder-image {
  background: repeating-linear-gradient(
    45deg,
    var(--gray-100),
    var(--gray-100) 10px,
    #eceff1 10px,
    #eceff1 20px
  );
  border: 1px dashed var(--gray-300);
  border-radius: var(--radius);
  min-height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-soft);
  font-size: 13px;
  text-align: center;
  padding: var(--space-3);
}

/* Tables */

.spec-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
}

.spec-table caption {
  text-align: left;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: var(--space-2);
}

.spec-table th,
.spec-table td {
  text-align: left;
  padding: var(--space-2) var(--space-3);
  border-top: 1px solid var(--gray-300);
  vertical-align: top;
}

.spec-table thead th {
  background: var(--gray-100);
  border-top: none;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.table-scroll {
  overflow-x: auto;
}

/* CTA band */

.cta-band {
  background: var(--navy-900);
  color: var(--white);
  text-align: center;
}

.cta-band h2 {
  color: var(--white);
}

.cta-band .hero-ctas {
  justify-content: center;
}

/* Forms */

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3) var(--space-4);
}

.form-grid .field-full {
  grid-column: 1 / -1;
}

@media (max-width: 600px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}

label {
  display: block;
  font-weight: 600;
  font-size: 14px;
  margin-bottom: var(--space-1);
}

.required-mark {
  color: var(--navy-900);
}

input[type="text"],
input[type="email"],
input[type="tel"],
select,
textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 15px;
  background: var(--white);
  color: var(--ink);
}

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

.field-error {
  color: #b3261e;
  font-size: 13px;
  margin-top: var(--space-1);
  display: none;
}

.field.has-error input,
.field.has-error select,
.field.has-error textarea {
  border-color: #b3261e;
}

.field.has-error .field-error {
  display: block;
}

.form-status {
  border-radius: var(--radius);
  padding: var(--space-3) var(--space-4);
  margin-top: var(--space-4);
  display: none;
}

.form-status.is-visible {
  display: block;
}

.form-status.is-success {
  background: #e8f5e9;
  border: 1px solid var(--green-500);
  color: #1e4620;
}

.form-status.is-error {
  background: #fdecea;
  border: 1px solid #b3261e;
  color: #611a15;
}

/* Contact info list */

.contact-info-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.contact-info-list a {
  font-weight: 600;
}

/* FAQ accordion */

.faq-item {
  border-bottom: 1px solid var(--gray-300);
}

.faq-item summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--navy-900);
  padding: var(--space-3) 0;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::before {
  content: "+";
  display: inline-block;
  width: 1.2em;
  color: var(--gold-500);
  font-weight: 800;
}

.faq-item[open] summary::before {
  content: "\2212";
}

.faq-item p {
  padding-bottom: var(--space-3);
  color: var(--ink-soft);
}

/* Footer */

.site-footer {
  background: var(--navy-900);
  color: #cbd6e2;
  padding-top: var(--space-6);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
  padding-bottom: var(--space-5);
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-col h3 {
  color: var(--white);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-col a {
  color: #cbd6e2;
  text-decoration: none;
}

.footer-col a:hover {
  color: var(--white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: var(--space-4) 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: 13px;
}

.footer-legal {
  list-style: none;
  display: flex;
  gap: var(--space-4);
  margin: 0;
  padding: 0;
}

.footer-legal a {
  color: #cbd6e2;
  text-decoration: none;
}

.footer-legal a:hover {
  color: var(--white);
}

/* Utility */

.text-center {
  text-align: center;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  align-items: start;
}

@media (max-width: 768px) {
  .two-col {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .hero, .page-hero {
    padding: var(--space-5) 0;
  }

  h1 { font-size: 28px; }
  h2 { font-size: 22px; }
}