:root {
  /* Palette sampled from the Advance Automation logo (brushed-steel cube render) */
  --aa-navy: #121316;
  --aa-navy-light: #1c1e22;
  --aa-navy-lighter: #282b30;
  --aa-steel: #5b6870;
  --aa-steel-light: #aab4ba;
  --aa-accent: #71939f;
  --aa-accent-dark: #4f6d78;
  --aa-ink: #1c1e21;
  --aa-paper: #f2f3f4;
  --aa-white: #ffffff;
}

html {
  font-size: 15px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

body {
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--aa-ink);
  background-color: var(--aa-white);
}

a {
  color: var(--aa-navy-light);
}

a:hover {
  color: var(--aa-accent-dark);
}

/* ---------- Navbar ---------- */
.aa-navbar {
  background-color: var(--aa-navy);
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
  border-bottom: 3px solid var(--aa-accent);
}

.aa-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.aa-brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 9rem;
  height: 9rem;
  flex-shrink: 0;
}

.aa-brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  -webkit-mask-image: radial-gradient(circle at center, black 45%, transparent 72%);
  mask-image: radial-gradient(circle at center, black 45%, transparent 72%);
}

.aa-brand-text {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--aa-white);
  letter-spacing: 0.01em;
}

.aa-brand-ltd {
  font-weight: 400;
  color: var(--aa-steel-light);
}

.aa-navbar .nav-link {
  color: var(--aa-steel-light);
  font-weight: 500;
  padding: 0.5rem 0.9rem;
}

.aa-navbar .nav-link:hover,
.aa-navbar .nav-link.active {
  color: var(--aa-white);
}

.aa-navbar .nav-link-cta {
  color: var(--aa-accent);
}

.aa-navbar .nav-link-cta:hover {
  color: var(--aa-accent-dark);
}

/* ---------- Hero ---------- */
.aa-hero {
  background: linear-gradient(135deg, var(--aa-navy) 0%, var(--aa-navy-light) 60%, var(--aa-navy-lighter) 100%);
  color: var(--aa-white);
  padding: 5rem 0 4.5rem;
}

.aa-hero-eyebrow {
  color: var(--aa-accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
}

.aa-hero h1 {
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1.25rem;
}

.aa-hero p.lead {
  color: var(--aa-steel-light);
  max-width: 40rem;
}

.btn-aa-primary {
  background-color: var(--aa-accent);
  border-color: var(--aa-accent);
  color: var(--aa-white);
  font-weight: 700;
}

.btn-aa-primary:hover {
  background-color: var(--aa-accent-dark);
  border-color: var(--aa-accent-dark);
  color: var(--aa-white);
}

.btn-aa-secondary {
  border: 1px solid var(--aa-steel-light);
  color: var(--aa-white);
  font-weight: 600;
  background: transparent;
}

.btn-aa-secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--aa-white);
  border-color: var(--aa-white);
}

/* ---------- Section helpers ---------- */
.aa-section {
  padding: 4rem 0;
}

.aa-section-alt {
  background-color: var(--aa-paper);
}

.aa-section-eyebrow {
  color: var(--aa-accent-dark);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  font-size: 0.8rem;
  margin-bottom: 0.5rem;
}

.aa-section-title {
  font-weight: 800;
  color: var(--aa-navy);
  margin-bottom: 1.5rem;
}

/* ---------- Stat strip ---------- */
.aa-stats {
  background-color: var(--aa-navy-light);
  color: var(--aa-white);
}

.aa-stat {
  padding: 2.25rem 1rem;
  text-align: center;
  border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.aa-stat:first-child {
  border-left: none;
}

.aa-stat-number {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--aa-accent);
  display: block;
}

.aa-stat-label {
  color: var(--aa-steel-light);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ---------- Cards ---------- */
.aa-card {
  background: var(--aa-white);
  border: 1px solid #e4e7ec;
  border-radius: 6px;
  padding: 1.75rem;
  height: 100%;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.aa-card:hover {
  box-shadow: 0 0.5rem 1.5rem rgba(14, 26, 43, 0.1);
  transform: translateY(-2px);
}

.aa-card-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 6px;
  background-color: var(--aa-navy);
  color: var(--aa-steel-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  margin-bottom: 1rem;
}

.aa-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--aa-navy);
}

/* ---------- Project / case study cards ---------- */
.aa-project {
  border: 1px solid #e4e7ec;
  border-radius: 6px;
  overflow: hidden;
  height: 100%;
  background: var(--aa-white);
}

.aa-project-media {
  background: linear-gradient(135deg, var(--aa-navy-lighter), var(--aa-navy));
  color: var(--aa-steel-light);
  min-height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  text-align: center;
  padding: 1rem;
  border-bottom: 3px solid var(--aa-accent);
}

.aa-project-body {
  padding: 1.5rem;
}

.aa-project-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--aa-navy);
  margin-bottom: 0.15rem;
}

.aa-project-meta {
  font-size: 0.82rem;
  color: var(--aa-steel);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.75rem;
}

.aa-badge {
  display: inline-block;
  background-color: var(--aa-paper);
  color: var(--aa-navy);
  border: 1px solid #dde1e8;
  border-radius: 4px;
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  margin: 0 0.35rem 0.35rem 0;
}

/* ---------- Skills table ---------- */
.aa-skill-table {
  width: 100%;
  border-collapse: collapse;
}

.aa-skill-table th {
  background-color: var(--aa-navy);
  color: var(--aa-white);
  text-align: left;
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.aa-skill-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid #e4e7ec;
  vertical-align: top;
}

.aa-skill-table tr:nth-child(even) td {
  background-color: var(--aa-paper);
}

.aa-skill-table td:first-child {
  font-weight: 700;
  color: var(--aa-navy);
  white-space: nowrap;
}

/* ---------- CTA band ---------- */
.aa-cta {
  background-color: var(--aa-navy);
  color: var(--aa-white);
  padding: 3.5rem 0;
  text-align: center;
}

.aa-cta h2 {
  font-weight: 800;
  margin-bottom: 1rem;
}

.aa-cta p {
  color: var(--aa-steel-light);
  margin-bottom: 1.75rem;
}

/* ---------- Footer ---------- */
.aa-footer {
  background-color: var(--aa-navy);
  color: var(--aa-steel-light);
  padding: 3.5rem 0 1.5rem;
  margin-top: 0;
}

.aa-brand-footer {
  margin-bottom: 0.75rem;
}

.aa-footer-tag {
  color: var(--aa-steel-light);
  font-size: 0.9rem;
  max-width: 20rem;
}

.aa-footer-heading {
  color: var(--aa-white);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.9rem;
}

.aa-footer-links li {
  margin-bottom: 0.5rem;
}

.aa-footer-links a {
  color: var(--aa-steel-light);
  text-decoration: none;
}

.aa-footer-links a:hover {
  color: var(--aa-accent);
}

.aa-footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  font-size: 0.85rem;
  color: var(--aa-steel);
}

/* ---------- Misc ---------- */
.aa-page-header {
  background-color: var(--aa-navy);
  color: var(--aa-white);
  padding: 3.5rem 0;
}

.aa-page-header h1 {
  font-weight: 800;
}

.aa-page-header p {
  color: var(--aa-steel-light);
  max-width: 40rem;
}

.form-control:focus {
  border-color: var(--aa-accent);
  box-shadow: 0 0 0 0.2rem rgba(113, 147, 159, 0.25);
}