:root {
  --color-bg: #f3f4f6;                 /* light neutral background */
  --color-surface: #ffffff;            /* cards, header, forms */
  --color-surface-dark: #111827;       /* dark header/footer text */
  --color-text: #111827;               /* primary body text */
  --color-muted: #6b7280;              /* secondary text */
  --color-accent: #2563eb;             /* professional blue */
  --color-accent-light: #dbeafe;       /* soft blue tint */
  --color-secondary: #16a34a;          /* clean environmental green */
  --color-border: #e5e7eb;             /* subtle gray border */
  --max-width: 1200px;
  --font-base: 'Inter', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --shadow-sm: 0 10px 30px rgba(15, 23, 42, 0.08);
  --radius-md: 12px;
  --radius-sm: 8px;
  --transition: all 0.25s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-base);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: var(--transition);
}

a:hover,
a:focus {
  color: var(--color-secondary);
}

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

.skip-link {
  position: absolute;
  left: -999px;
  top: -999px;
  background: var(--color-accent);
  color: #fff;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  z-index: 1001;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

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

.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text);
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 999px;
  transition: var(--transition);
}

.site-nav {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.95);
  color: #fff;
  display: none;
  padding: 5rem 2rem 2rem;
}

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

.nav-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1.5rem;
  text-align: center;
}

.site-nav a {
  color: #fff;
  font-size: 1.1rem;
  font-weight: 600;
}

.nav-close {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
}

.hero {
  padding: clamp(4rem, 8vw, 6rem) 0 4rem;
  background:
    radial-gradient(circle at top right, rgba(37, 99, 235, 0.16), transparent 55%),
    linear-gradient(135deg, #f9fafb 0%, #eff6ff 100%);
}

.hero-content {
  display: grid;
  gap: 1.5rem;
}

.hero-copy {
  display: grid;
  gap: 1rem;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  margin: 0;
  color: var(--color-surface-dark);
}

.hero-subtitle {
  margin: 0;
  color: var(--color-muted);
  font-size: 1.05rem;
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.4rem;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}

.btn-primary:hover,
.btn-primary:focus {
  background: #1d4ed8;
}

.btn-secondary {
  background: rgba(37, 99, 235, 0.12);
  color: var(--color-accent);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background: rgba(37, 99, 235, 0.2);
}

.value-list {
  display: grid;
  gap: 0.75rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.value-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: #fff;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

.value-list span {
  color: var(--color-accent);
  font-weight: 700;
}

.badge-strip {
  background: var(--color-surface-dark);
  color: #fff;
  padding: 1.5rem 0;
}

.badge-title {
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 0;
  font-weight: 600;
  text-align: center;
}

.badge-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.badge {
  background: rgba(255, 255, 255, 0.1);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  text-align: center;
}

.section {
  padding: clamp(3rem, 7vw, 5rem) 0;
}

.section-intro {
  display: grid;
  gap: 1rem;
  text-align: left;
}

.section h2,
.section h1 {
  font-size: clamp(1.9rem, 4vw, 2.5rem);
  margin: 0;
  color: var(--color-surface-dark);
}

.section-subtitle {
  color: var(--color-muted);
  margin: 0;
}

.card-grid {
  display: grid;
  gap: 1.5rem;
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(15, 23, 42, 0.05);
  display: grid;
  gap: 0.75rem;
}

.link-arrow {
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.link-arrow::after {
  content: '→';
  font-size: 0.95em;
  transition: transform 0.25s ease;
}

.link-arrow:hover::after,
.link-arrow:focus::after {
  transform: translateX(4px);
}

.service-area-grid {
  display: grid;
  gap: 1rem;
}

.service-area-grid.large {
  gap: 1.5rem;
}

.service-area-card {
  border-left: 4px solid var(--color-accent);
  padding: 1.25rem 1.5rem;
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

.service-area-card ul {
  margin: 0.75rem 0 0;
  padding-left: 1.25rem;
}

.section-actions {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
}

.steps {
  display: grid;
  gap: 1.5rem;
  margin-top: 2rem;
}

.step {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  border: 1px solid rgba(15, 23, 42, 0.06);
  box-shadow: var(--shadow-sm);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  background: var(--color-accent);
  color: #fff;
  font-weight: 700;
  margin-bottom: 1rem;
}

.banner {
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-md);
  padding: 2rem;
  display: grid;
  gap: 1rem;
  text-align: center;
}

.site-footer {
  background: var(--color-surface-dark);
  color: #e2e8f0;
  padding: 3rem 0 2rem;
}

.site-footer a {
  color: #e2e8f0;
}

.footer-grid {
  display: grid;
  gap: 2rem;
}

.footer-brand {
  margin: 0;
  font-weight: 700;
}

.footer-meta {
  margin: 0.4rem 0 0;
}

.footer-heading {
  margin: 0 0 0.75rem;
  font-weight: 600;
}

.footer-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.5rem;
}

.footer-bottom {
  margin-top: 2rem;
  font-size: 0.9rem;
  color: rgba(226, 232, 240, 0.75);
}

.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.service-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
}

.service-table th,
.service-table td {
  padding: 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.service-table th {
  background: var(--color-accent);
  color: #fff;
  font-weight: 600;
}

.service-table tbody th {
  background: rgba(37, 99, 235, 0.08);
  color: var(--color-surface-dark);
  font-weight: 600;
}

.service-table tr:last-child td {
  border-bottom: none;
}

.sidebar {
  background: var(--color-accent-light);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  border: 1px solid rgba(37, 99, 235, 0.2);
  display: grid;
  gap: 1rem;
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.5rem;
}

.checklist li {
  position: relative;
  padding-left: 1.5rem;
}

.checklist li::before {
  content: '✔';
  position: absolute;
  left: 0;
  color: var(--color-secondary);
  font-weight: 700;
}

.sidebar-note,
.form-note {
  color: var(--color-muted);
  font-size: 0.95rem;
  margin: 0;
}

.faq {
  border-radius: var(--radius-md);
  border: 1px solid rgba(37, 99, 235, 0.2);
  background: var(--color-surface);
  overflow: hidden;
}

.faq-item + .faq-item {
  border-top: 1px solid rgba(37, 99, 235, 0.1);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 1.5rem;
  background: none;
  border: none;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
}

.faq-question:focus {
  outline: 2px solid var(--color-secondary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  padding: 0 1.5rem;
}

.faq-answer.open {
  padding-bottom: 1.2rem;
}

.faq-answer p {
  margin: 0.75rem 0;
}

.form {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: 1.5rem;
}

.contact-layout {
  gap: 1.5rem;
}

.field {
  display: grid;
  gap: 0.5rem;
}

label,
legend {
  font-weight: 600;
  color: var(--color-muted);
}

input,
select,
textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  font: inherit;
  transition: var(--transition);
  background: #fff;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

.radio-group {
  display: grid;
  gap: 0.5rem;
}

.radio-option {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.error {
  color: #c2410c;
  font-size: 0.9rem;
  min-height: 1em;
  margin: 0;
}

.success-message {
  background: rgba(90, 167, 112, 0.15);
  border: 1px solid rgba(90, 167, 112, 0.4);
  color: #166534;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  display: none;
}

.success-message.show {
  display: block;
}

.timeline {
  display: grid;
  gap: 1.5rem;
}

.timeline-item {
  background: var(--color-surface);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.team-grid {
  display: grid;
  gap: 1.5rem;
}

.team-card {
  padding: 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(37, 99, 235, 0.18);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.team-role {
  font-weight: 700;
  margin-bottom: 0.5rem;
}

@media (min-width: 600px) {
  .badge-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .service-area-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .service-area-grid.large {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .site-nav {
    position: static;
    inset: unset;
    background: none;
    display: block !important;
    padding: 0;
  }

  .nav-links {
    display: flex;
    gap: 1.5rem;
    text-align: left;
  }

  .site-nav a {
    color: var(--color-muted);
    font-size: 1rem;
  }

  .site-nav a:hover,
  .site-nav a:focus {
    color: var(--color-accent);
  }

  .nav-toggle,
  .nav-close {
    display: none;
  }

  .hero-content {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: center;
  }

  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .service-area-grid.large {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .team-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .card-grid.services {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .industries-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .two-column {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2.5rem;
    align-items: start;
  }

  .contact-layout {
    grid-template-columns: 1fr 1.5fr;
  }

  .timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}