/* ============================================================
   BIRDLAND ENGINEERING — site-specific styles
   Layered atop tokens.css design system
   ============================================================ */

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
body { background: var(--bg-app); margin: 0; }
a { color: inherit; }

/* ---------- BUTTONS ---------- */
.btn-primary,
.btn-ghost-dark,
.btn-ghost {
  font-family: var(--font-sans);
  font-weight: var(--fw-semibold);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  border-radius: var(--r-pill);
  padding: 12px 22px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  transition: all var(--dur-base) var(--ease-standard);
  white-space: nowrap;
}
.btn-primary { background: var(--oriole-gold); color: var(--industrial-black); }
.btn-primary:hover { background: var(--gold-bold); box-shadow: var(--shadow-gold); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); box-shadow: var(--shadow-1); }
.btn-ghost-dark { background: transparent; color: var(--stark-white); box-shadow: inset 0 0 0 1.5px rgba(255,255,255,0.5); }
.btn-ghost-dark:hover { box-shadow: inset 0 0 0 1.5px var(--oriole-gold); color: var(--oriole-gold); }
.btn-ghost { background: transparent; color: var(--industrial-black); box-shadow: inset 0 0 0 1.5px var(--industrial-black); }
.btn-ghost:hover { background: var(--industrial-black); color: var(--stark-white); }
.btn-lg { padding: 16px 28px; font-size: 14px; }

/* ---------- LAYOUT WRAPPERS ---------- */
.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.section-pad {
  padding-block: var(--space-9);
}

/* ---------- EYEBROW ---------- */
.eyebrow {
  font: var(--fw-semibold) 12px / 1 var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--oriole-gold);
}

/* ---------- LINK / FOCUS ---------- */
a, button, input, textarea { font-family: inherit; }
*:focus-visible {
  outline: 2px solid var(--oriole-gold);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- MARYLAND CHECK STRIPE ACCENT ---------- */
.md-check {
  background: repeating-linear-gradient(
    135deg,
    var(--oriole-gold) 0 12px,
    var(--industrial-black) 12px 24px
  );
}

/* ---------- INPUT FIELD ---------- */
.field-input {
  font: var(--fw-regular) 15px/1.4 var(--font-sans);
  color: var(--industrial-black);
  background: var(--stark-white);
  border-radius: var(--r-md);
  border: none;
  box-shadow: inset 0 0 0 1.5px var(--rule);
  padding: 14px 16px;
  outline: none;
  width: 100%;
  transition: box-shadow var(--dur-fast) var(--ease-standard);
}
.field-input:focus {
  box-shadow: inset 0 0 0 1.5px var(--industrial-black);
}
.field-input::placeholder { color: var(--fg-3); }

/* ---------- MOBILE NAV ---------- */
.mobile-nav-toggle { display: none; }

@media (max-width: 880px) {
  .desktop-nav { display: none !important; }
  .mobile-nav-toggle { display: inline-flex; }
  .hero-stats { grid-template-columns: repeat(2, 1fr) !important; gap: 32px 16px !important; }
  .what-we-do-grid { grid-template-columns: 1fr !important; }
  .process-grid { grid-template-columns: 1fr !important; }
  .team-grid { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)) !important; }
  .partner-row { grid-template-columns: 1fr !important; gap: 8px !important; }
  .partner-row .partner-cell-meta { text-align: left !important; }
  .brand-grid { grid-template-columns: repeat(2, 1fr) !important; }
  .portfolio-grid { grid-template-columns: 1fr !important; }
  .scorecard { grid-template-columns: 1fr 1fr !important; gap: 24px !important; padding: 32px !important; }
  .contact-grid { grid-template-columns: 1fr !important; gap: 40px !important; padding: 40px !important; }
  .footer-grid { grid-template-columns: 1fr 1fr !important; gap: 32px !important; }
  .section-header { flex-direction: column !important; align-items: flex-start !important; gap: 16px !important; }
  .hero-h1 { font-size: clamp(48px, 12vw, 88px) !important; }
  .display-h2 { font-size: clamp(36px, 8vw, 56px) !important; }
}

@media (max-width: 540px) {
  .hero-stats { grid-template-columns: 1fr 1fr !important; }
  .footer-grid { grid-template-columns: 1fr !important; }
  .field-row { grid-template-columns: 1fr !important; }
  .brand-grid { grid-template-columns: 1fr !important; }
  .scorecard { grid-template-columns: 1fr !important; }
  .container { padding: 0 20px; }
  :root { --gutter: 20px; }
}

/* ---------- KEYFRAMES ---------- */
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp 0.6s var(--ease-standard) both; }

/* ---------- SCROLLBAR (subtle) ---------- */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-app); }
::-webkit-scrollbar-thumb { background: var(--black-30); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: var(--black-50); }