/* ==========================================================================
   Vandelay Construction Technologies — Design Tokens
   ========================================================================== */

:root {
  /* Color — derived from the wordmark */
  --navy: #1B2A41;
  --navy-light: #2D4A63;
  --steel: #4A5D6B;
  --amber: #F2A93B;
  --mist: #E8EDF1;
  --white: #FFFFFF;
  --ink: #14202F;

  /* Type */
  --font-display: 'Oswald', 'Arial Narrow', sans-serif;
  --font-body: 'Source Sans 3', 'Segoe UI', Arial, sans-serif;

  /* Layout */
  --wrap: 1180px;
  --radius: 4px;
  --border: 1px solid rgba(27, 42, 65, 0.12);
  --shadow: 0 4px 20px rgba(20, 32, 47, 0.08);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   Reset
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.15; margin: 0 0 0.5em; color: var(--navy); }
p { margin: 0 0 1em; }

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--amber);
  color: var(--navy);
  padding: 12px 20px;
  z-index: 200;
  font-weight: 600;
}
.skip-link:focus {
  left: 24px;
  top: 12px;
}

:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 2px;
}

.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:disabled { opacity: 0.7; cursor: not-allowed; transform: none; }
.btn-primary {
  background: var(--amber);
  color: var(--navy);
}
.btn-primary:hover { background: #ffb84d; }
.btn-ghost {
  border-color: rgba(255,255,255,0.5);
  color: var(--white);
}
.btn-ghost:hover { border-color: var(--white); }
.btn-block { width: 100%; text-align: center; }

.section-label {
  display: inline-block;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.8rem;
  color: var(--amber);
  background: var(--navy);
  padding: 6px 14px;
  border-radius: 2px;
  margin-bottom: 18px;
}
.section-label-light {
  background: var(--amber);
  color: var(--navy);
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 116px;
}
.brand { flex-shrink: 0; }
.brand-mark { height: 84px; width: auto; max-width: none; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
.site-nav a {
  color: var(--steel);
  padding: 8px 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.site-nav a:hover { color: var(--navy); border-color: var(--amber); }
.site-nav .nav-cta {
  background: var(--navy);
  color: var(--white);
  padding: 10px 20px;
  border-radius: var(--radius);
}
.site-nav .nav-cta:hover { background: var(--navy-light); border-color: transparent; color: var(--white); }

.nav-toggle-input { display: none; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 26px;
  height: 2px;
  background: var(--navy);
  display: block;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-light) 100%);
  color: var(--white);
  overflow: hidden;
  padding: 120px 0 100px;
}
.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.35;
}
.hero-grid svg { width: 100%; height: 100%; }
.trace-lines line {
  stroke: rgba(232, 237, 241, 0.15);
  stroke-width: 1;
}
.trace-nodes circle {
  fill: var(--amber);
  opacity: 0.6;
}
.hero-inner {
  position: relative;
  max-width: 760px;
}
.eyebrow {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.85rem;
  color: var(--amber);
  margin-bottom: 18px;
}
.hero h1 {
  color: var(--white);
  font-size: clamp(2.2rem, 4.2vw, 3.4rem);
  margin-bottom: 0.4em;
}
.hero-lede {
  font-size: 1.15rem;
  color: rgba(232, 237, 241, 0.88);
  max-width: 620px;
  margin-bottom: 2em;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ==========================================================================
   About
   ========================================================================== */

.about { padding: 96px 0; background: var(--white); }
.about-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 64px;
  align-items: start;
}
.about-copy h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); }
.about-copy p { color: var(--steel); font-size: 1.05rem; }
.about-stats {
  display: grid;
  gap: 24px;
  border-left: 3px solid var(--amber);
  padding-left: 28px;
}
.about-stats dt {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--steel);
  margin-bottom: 4px;
}
.about-stats dd {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--navy);
}

/* ==========================================================================
   Services
   ========================================================================== */

.services { padding: 96px 0; background: var(--mist); }
.services h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); margin-bottom: 48px; }

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--white);
  padding: 32px 28px;
  border: var(--border);
  border-top: 3px solid var(--amber);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
  box-shadow: var(--shadow);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 28px rgba(20, 32, 47, 0.14);
}
.service-icon {
  width: 44px;
  height: 44px;
  fill: none;
  stroke: var(--navy);
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  margin-bottom: 18px;
}
.service-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}
.service-card > p {
  color: var(--steel);
  font-size: 0.95rem;
  margin-bottom: 16px;
}
.service-card ul {
  display: grid;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--navy);
}
.service-card li {
  padding-left: 16px;
  position: relative;
}
.service-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--amber);
  border-radius: 50%;
}

/* ==========================================================================
   Projects
   ========================================================================== */

.projects { padding: 96px 0; background: var(--white); }
.projects h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); margin-bottom: 48px; }

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.project-card {
  padding: 32px;
  border: var(--border);
  border-radius: var(--radius);
  background: var(--white);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.project-card:hover {
  border-color: var(--amber);
  box-shadow: var(--shadow);
}
.project-tag {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--amber);
  background: var(--navy);
  display: inline-block;
  padding: 4px 10px;
  border-radius: 2px;
  margin-bottom: 14px;
}
.project-card h3 { font-size: 1.25rem; margin-bottom: 4px; }
.project-scope {
  font-size: 0.85rem;
  color: var(--steel);
  font-style: italic;
  margin-bottom: 12px;
}
.project-card > p:last-child { color: var(--steel); margin-bottom: 0; font-size: 0.95rem; }

/* ==========================================================================
   Contact
   ========================================================================== */

.contact {
  padding: 96px 0;
  background: var(--navy);
  color: var(--white);
}
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}
.contact-info h2 { color: var(--white); font-size: clamp(1.8rem, 3vw, 2.4rem); }
.contact-info > p { color: rgba(232, 237, 241, 0.85); font-size: 1.05rem; }

.contact-details {
  display: grid;
  gap: 18px;
  margin-top: 32px;
}
.contact-details li {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 12px;
  border-bottom: 1px solid rgba(232, 237, 241, 0.15);
  padding-bottom: 14px;
}
.contact-details span {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  color: var(--amber);
}
.contact-details a:hover { text-decoration: underline; }

.contact-form {
  background: var(--white);
  padding: 32px;
  border-radius: var(--radius);
  color: var(--ink);
}
.form-row { margin-bottom: 18px; }
.form-row-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-row label {
  display: block;
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--steel);
  margin-bottom: 6px;
}
.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid rgba(27, 42, 65, 0.2);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: var(--white);
  color: var(--ink);
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  border-color: var(--amber);
}

.form-row textarea {
  resize: vertical;
}

.form-status {
  padding: 12px 14px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  margin: 0 0 18px;
}
.form-status-success {
  background: rgba(34, 139, 34, 0.1);
  color: #1e5e1e;
  border: 1px solid rgba(34, 139, 34, 0.3);
}
.form-status-error {
  background: rgba(200, 50, 50, 0.08);
  color: #a02020;
  border: 1px solid rgba(200, 50, 50, 0.3);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: var(--ink);
  color: rgba(232, 237, 241, 0.7);
  padding: 32px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-mark { height: 44px; width: auto; max-width: none; filter: brightness(0) invert(1); opacity: 0.85; }
.site-footer p { margin: 0; font-size: 0.85rem; }

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 960px) {
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .about-inner { grid-template-columns: 1fr; }
  .contact-inner { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .brand-mark { height: 48px; }
  .header-inner { height: 76px; }
  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    border-bottom: var(--border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }
  .site-nav a { width: 100%; padding: 16px 24px; border-bottom: var(--border); }
  .nav-toggle-input:checked ~ .site-nav { max-height: 320px; }
  .service-grid { grid-template-columns: 1fr; }
  .project-grid { grid-template-columns: 1fr; }
  .form-row-split { grid-template-columns: 1fr; }
  .hero { padding: 90px 0 70px; }
}