/* =========================================================================
   Delta Bravo Aviation — site stylesheet
   Brand palette sampled from logo. Mobile-first, system-font fallback.
   ========================================================================= */

:root {
  --navy:        #0A1223;
  --navy-deep:   #060B17;
  --navy-soft:   #14223A;
  --gold:        #E9BD75;
  --gold-deep:   #B9995F;
  --gold-glow:   rgba(233, 189, 117, 0.15);
  --silver:      #E1DDDE;
  --white:       #FFFFFF;
  --muted:       #9AA3B2;
  --border:      rgba(233, 189, 117, 0.2);

  --radius:      6px;
  --radius-lg:   14px;
  --maxw:        1180px;
  --pad-x:       clamp(1.25rem, 4vw, 2.5rem);

  --font-display: "Black Ops One", "Russo One", "Oswald", system-ui, sans-serif;
  --font-body:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-gold: 0 0 0 1px var(--border), 0 12px 32px rgba(233, 189, 117, 0.08);
}

/* ----- Reset / base ----- */
*, *::before, *::after { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
html, body { overflow-x: hidden; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--silver);
  background: var(--navy);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-wrap: break-word;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--gold); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--gold-deep); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--white);
  line-height: 1.15;
  margin: 0 0 0.6em;
}
h1 { font-size: clamp(1.9rem, 5.5vw, 3.6rem); }
h2 { font-size: clamp(1.5rem, 3.8vw, 2.4rem); color: var(--gold); }
h3 { font-size: 1.2rem; color: var(--white); letter-spacing: 0.06em; }
p  { margin: 0 0 1rem; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  color: var(--gold);
  margin-bottom: 0.6rem;
  text-transform: uppercase;
}

/* ----- Layout primitives ----- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--pad-x);
  padding-right: var(--pad-x);
}
section { padding: clamp(3rem, 8vw, 6rem) 0; }
.section--alt { background: var(--navy-deep); }

/* ----- Header ----- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 18, 35, 0.96);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.85rem 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}
.brand__mark {
  height: 44px;
  width: auto;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.5));
}
.brand__text {
  display: none;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  color: var(--white);
}
@media (min-width: 640px) {
  .brand__text { display: inline; }
}
nav.primary ul {
  display: flex;
  gap: 1.2rem;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
}
nav.primary a {
  color: var(--silver);
  font-weight: 500;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.4rem 0.2rem;
  border-bottom: 2px solid transparent;
}
nav.primary a:hover,
nav.primary a[aria-current="page"] {
  color: var(--gold);
  border-bottom-color: var(--gold);
}
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(233, 189, 117, 0.08);
  border: 2px solid var(--gold);
  color: var(--gold);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius);
  font-size: 1.4rem;
  line-height: 1;
  font-weight: 700;
  cursor: pointer;
  min-width: 44px;
  min-height: 44px;
  touch-action: manipulation;
  -webkit-tap-highlight-color: rgba(233, 189, 117, 0.3);
  -webkit-appearance: none;
  appearance: none;
  position: relative;
  z-index: 60;
}
.nav-toggle:hover, .nav-toggle:focus-visible {
  background: rgba(233, 189, 117, 0.18);
}
@media (max-width: 820px) {
  .nav-toggle { display: inline-flex; }
  nav.primary {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--navy-deep);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    max-height: calc(100vh - 80px);
    overflow-y: auto;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  }
  nav.primary.is-open {
    display: block;
  }
  nav.primary ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0 var(--pad-x);
  }
  nav.primary li { border-top: 1px solid rgba(233, 189, 117, 0.08); }
  nav.primary li:first-child { border-top: none; }
  nav.primary a { display: block; padding: 0.85rem 0; }
  /* Restore button styling for the Start DCT CTA in mobile menu */
  nav.primary a.btn {
    display: block;
    text-align: center;
    margin: 0.75rem 0 0.25rem;
    padding: 0.85rem 1rem;
    border-bottom: none;
  }
  nav.primary a.btn:hover,
  nav.primary a.btn[aria-current="page"] {
    border-bottom: none;
  }
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius);
  font-family: var(--font-display);
  letter-spacing: 0.1em;
  font-size: 0.9rem;
  text-transform: uppercase;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.18s ease;
}
.btn--primary {
  background: var(--gold);
  color: var(--navy);
  border-color: var(--gold);
}
.btn--primary:hover {
  background: var(--gold-deep);
  border-color: var(--gold-deep);
  color: var(--navy-deep);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn--ghost {
  background: transparent;
  color: var(--gold);
  border-color: var(--gold);
}
.btn--ghost:hover {
  background: var(--gold-glow);
  color: var(--gold);
  transform: translateY(-1px);
}
.btn--sm { padding: 0.55rem 1rem; font-size: 0.78rem; }

/* ----- Hero ----- */
.hero {
  position: relative;
  padding: clamp(3.5rem, 10vw, 8rem) 0 clamp(3.5rem, 8vw, 6rem);
  background:
    radial-gradient(1200px 600px at 50% -20%, rgba(233,189,117,0.10), transparent 70%),
    var(--navy);
  text-align: center;
  overflow: hidden;
}
.hero__logo {
  width: clamp(220px, 30vw, 360px);
  margin: 0 auto 1.5rem;
}
.hero h1 {
  max-width: none;
  margin-left: auto;
  margin-right: auto;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  letter-spacing: 0.03em;
  white-space: nowrap;
}
@media (max-width: 720px) {
  .hero h1 {
    white-space: normal;
    font-size: clamp(1.6rem, 6vw, 2.2rem);
    letter-spacing: 0.02em;
  }
}
.hero__tagline {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--silver);
  max-width: 50ch;
  margin: 0 auto 2rem;
  text-wrap: balance;
}
.hero__ctas {
  display: flex;
  gap: 0.85rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ----- SDVOSB badge ----- */
.sdvosb {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--gold);
  border-radius: 999px;
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--gold);
  text-transform: uppercase;
  background: rgba(233, 189, 117, 0.06);
}
.sdvosb::before {
  content: "★";
  color: var(--gold);
  font-size: 1rem;
  line-height: 1;
}

/* ----- Cards / grids ----- */
.grid {
  display: grid;
  gap: 1.25rem;
}
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

.card {
  background: var(--navy-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}
.card:hover {
  transform: translateY(-3px);
  border-color: var(--gold);
  box-shadow: var(--shadow-gold);
}
.card__icon {
  font-size: 1.6rem;
  color: var(--gold);
  margin-bottom: 0.5rem;
}
.card h3 { color: var(--gold); }
.card p:last-child { margin-bottom: 0; }

/* ----- Steps (process strip) ----- */
.steps {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  counter-reset: step;
}
.step {
  position: relative;
  padding: 1.5rem 1.25rem 1.5rem 3.6rem;
  background: var(--navy-soft);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
}
.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 1.1rem;
  top: 1.4rem;
  font-family: var(--font-display);
  color: var(--gold);
  font-size: 1.3rem;
  letter-spacing: 0.05em;
}
.step h4 { color: var(--white); margin: 0 0 0.35rem; font-size: 0.95rem; letter-spacing: 0.06em; }
.step p { font-size: 0.92rem; color: var(--muted); margin: 0; }

/* ----- Testimonial ----- */
.testimonial {
  background: var(--navy-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  position: relative;
}
.testimonial__quote {
  font-size: 1.02rem;
  color: var(--silver);
  font-style: italic;
  margin: 0 0 1rem;
}
.testimonial__quote::before { content: "“"; font-family: var(--font-display); color: var(--gold); font-size: 2rem; line-height: 0.8; vertical-align: -0.2em; margin-right: 0.2em; }
.testimonial__author { font-size: 0.85rem; color: var(--gold); letter-spacing: 0.06em; text-transform: uppercase; }
.testimonial__role { font-size: 0.78rem; color: var(--muted); margin-top: 0.15rem; }
.placeholder-flag {
  display: inline-block;
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--navy-deep);
  background: var(--gold);
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  margin-bottom: 0.75rem;
  text-transform: uppercase;
}

/* ----- Forms ----- */
form { display: grid; gap: 1rem; }
label { font-size: 0.85rem; letter-spacing: 0.06em; color: var(--gold); text-transform: uppercase; }
input, textarea, select {
  width: 100%;
  background: var(--navy-deep);
  border: 1px solid var(--border);
  color: var(--silver);
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-glow);
}
textarea { resize: vertical; min-height: 130px; }
.field { display: grid; gap: 0.4rem; }
.field--row { grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 600px) { .field--row { grid-template-columns: 1fr; } }

/* ----- Footer ----- */
.site-footer {
  background: var(--navy-deep);
  border-top: 1px solid var(--border);
  padding: 3rem 0 1.5rem;
  margin-top: 4rem;
  font-size: 0.92rem;
  color: var(--muted);
}
.site-footer .grid--3 { gap: 2rem; align-items: start; }
.site-footer h4 {
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  color: var(--gold);
  text-transform: uppercase;
  margin: 0 0 0.7rem;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 0.35rem; }
.site-footer a { color: var(--silver); }
.site-footer a:hover { color: var(--gold); }
.site-footer__base {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(233, 189, 117, 0.1);
  display: flex;