/* WSA Engineering — site styles */

:root {
  --navy: #0f1c2e;
  --navy-mid: #1a2d44;
  --slate: #2c3e50;
  --steel: #4a6fa5;
  --steel-light: #6b8fc4;
  --accent: #c9a227;
  --accent-soft: #e8d48a;
  --white: #ffffff;
  --off-white: #f4f6f8;
  --text: #2a3340;
  --text-muted: #5c6570;
  --border: #dde3ea;
  --shadow: 0 4px 24px rgba(15, 28, 46, 0.08);
  --shadow-lg: 0 12px 48px rgba(15, 28, 46, 0.14);
  --radius: 12px;
  --radius-sm: 8px;
  --font-sans: "DM Sans", system-ui, -apple-system, sans-serif;
  --font-display: "Libre Baskerville", Georgia, serif;
  --header-height: 76px;
  --transition: 0.25s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: var(--navy);
}

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

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(15, 28, 46, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background var(--transition);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo img {
  height: 48px;
  width: auto;
}

.nav-desktop {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-desktop a {
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.nav-desktop a:hover {
  color: var(--accent);
}

.nav-cta {
  background: var(--accent);
  color: var(--navy) !important;
  padding: 0.55rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
}

.nav-cta:hover {
  background: var(--accent-soft);
  color: var(--navy) !important;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  cursor: pointer;
  padding: 0.5rem;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: currentColor;
  margin: 5px 0;
  transition: var(--transition);
}

.nav-mobile {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: var(--navy);
  padding: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

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

.nav-mobile a {
  display: block;
  color: var(--white);
  padding: 0.75rem 0;
  font-weight: 500;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

/* Hero */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  color: var(--white);
  padding-top: var(--header-height);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: var(--navy);
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.45;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(15, 28, 46, 0.92) 0%,
    rgba(15, 28, 46, 0.55) 55%,
    rgba(26, 45, 68, 0.75) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 4rem 0 5rem;
  max-width: 720px;
}

.hero-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 400;
  line-height: 1.15;
  margin: 0 0 1.25rem;
}

.hero-lead {
  font-size: 1.125rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.82);
  margin: 0 0 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: var(--navy);
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-soft);
  border-color: var(--accent-soft);
  color: var(--navy);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.45);
}

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

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-stat strong {
  display: block;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
}

.hero-stat span {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.65);
}

/* Sections */
.section {
  padding: 5.5rem 0;
}

.section-alt {
  background: var(--off-white);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3.5rem;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-weight: 400;
  color: var(--navy);
  margin: 0 0 0.75rem;
}

.section-header p {
  color: var(--text-muted);
  margin: 0;
  font-size: 1.05rem;
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: transform var(--transition), box-shadow var(--transition);
}

.section-alt .service-card {
  background: var(--white);
}

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

.service-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--navy-mid), var(--steel));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--accent);
  font-size: 1.25rem;
}

.service-card h3 {
  font-size: 1.15rem;
  color: var(--navy);
  margin: 0 0 0.75rem;
}

.service-card p {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.95rem;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-text h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--navy);
  margin: 0 0 1rem;
}

.about-text p {
  color: var(--text-muted);
  margin: 0 0 1rem;
}

.about-highlight {
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius);
  padding: 2rem;
}

.about-highlight h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  margin: 0 0 0.5rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.about-highlight p {
  margin: 0;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.95rem;
}

/* Principles */
.principles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.principle-card {
  display: flex;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.principle-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  background: var(--accent);
  color: var(--navy);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}

.principle-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Projects */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.project-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color var(--transition);
}

.project-card:hover {
  border-color: var(--steel-light);
}

.project-client {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 0.35rem;
}

.project-card h3 {
  font-size: 1rem;
  color: var(--navy);
  margin: 0;
  line-height: 1.4;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: start;
}

.contact-info h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--navy);
  margin: 0 0 1rem;
}

.contact-details {
  list-style: none;
  padding: 0;
  margin: 0 0 2rem;
}

.contact-details li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
}

.contact-details strong {
  display: block;
  color: var(--navy);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.contact-details a {
  font-size: 1.05rem;
  font-weight: 500;
}

.contact-form {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.form-row {
  margin-bottom: 1rem;
}

.form-row label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 0.4rem;
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition);
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--steel);
}

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

.form-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.75rem;
}

.form-status {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
}

.form-status.success {
  background: #e8f5e9;
  color: #2e7d32;
}

.form-status.error {
  background: #fdecea;
  color: #c62828;
}

/* Footer */
.site-footer {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.7);
  padding: 2.5rem 0;
  font-size: 0.9rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.site-footer a {
  color: var(--accent);
}

.site-footer a:hover {
  color: var(--accent-soft);
}

/* Responsive */
@media (max-width: 960px) {
  .services-grid,
  .projects-grid {
    grid-template-columns: 1fr;
  }

  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .principles-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-desktop {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .hero-stats {
    gap: 1.5rem;
  }

  .section {
    padding: 4rem 0;
  }
}