/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  /* Color system */
  --clr-delta-600:  #1d4ed8;
  --clr-delta-500:  #2563eb;
  --clr-delta-400:  #3b82f6;
  --clr-delta-100:  #dbeafe;
  --clr-delta-50:   #eff6ff;

  --clr-united-700: #0c4a6e;
  --clr-united-600: #075985;
  --clr-united-500: #0ea5e9;
  --clr-united-100: #e0f2fe;
  --clr-united-50:  #f0f9ff;

  --clr-neutral-900: #0f172a;
  --clr-neutral-800: #1e293b;
  --clr-neutral-700: #334155;
  --clr-neutral-600: #475569;
  --clr-neutral-400: #94a3b8;
  --clr-neutral-200: #e2e8f0;
  --clr-neutral-100: #f1f5f9;
  --clr-neutral-50:  #f8fafc;

  --clr-accent:      #f59e0b;
  --clr-accent-dark: #d97706;
  --clr-success:     #16a34a;
  --clr-warning:     #d97706;
  --clr-error:       #dc2626;

  /* Spacing (8px system) */
  --sp-1: 8px; --sp-2: 16px; --sp-3: 24px; --sp-4: 32px;
  --sp-5: 40px; --sp-6: 48px; --sp-8: 64px; --sp-10: 80px;

  /* Type */
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;
  --text-4xl:  2.25rem;
  --text-5xl:  3rem;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.08);
  --shadow-md:  0 4px 12px rgba(0,0,0,.1);
  --shadow-lg:  0 12px 32px rgba(0,0,0,.14);
  --shadow-xl:  0 20px 48px rgba(0,0,0,.18);

  --transition: 0.22s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--clr-neutral-800);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

/* ── Icon helpers ─────────────────────────────────────────── */
.icon-sm  { width: 18px; height: 18px; flex-shrink: 0; }
.icon-md  { width: 26px; height: 26px; flex-shrink: 0; }

/* ── Layout ──────────────────────────────────────────────── */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 var(--sp-3);
}

/* ── Disclaimer Banner ───────────────────────────────────── */
.disclaimer-banner {
  background: #fefce8;
  border-bottom: 1px solid #fde68a;
  padding: 10px 0;
  font-size: var(--text-sm);
  color: #78350f;
}
.disclaimer-inner {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  justify-content: center;
  text-align: center;
}
.disclaimer-inner svg { color: #b45309; flex-shrink: 0; }

/* ── Header ──────────────────────────────────────────────── */
.header {
  background: var(--clr-neutral-900);
  padding: var(--sp-2) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-md);
}
.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-2);
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -.3px;
  text-decoration: none;
}
.logo svg { color: var(--clr-accent); }
.header-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  text-decoration: none;
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: .2px;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  border: 2px solid rgba(255,255,255,.2);
  transition: background var(--transition), border-color var(--transition);
}
.header-phone:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.5);
}

/* ── Hero ────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(160deg, rgba(15,23,42,.85) 40%, rgba(37,99,235,.7) 100%),
    url('https://images.pexels.com/photos/1004584/pexels-photo-1004584.jpeg?auto=compress&cs=tinysrgb&w=1600&h=700&fit=crop')
    center/cover no-repeat;
}
.hero-content {
  position: relative;
  z-index: 2;
  padding: var(--sp-10) var(--sp-3);
  color: #fff;
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}
.hero-eyebrow {
  display: inline-block;
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.3);
  border-radius: var(--radius-pill);
  padding: 4px 16px;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: .6px;
  text-transform: uppercase;
  margin-bottom: var(--sp-3);
}
.hero-title {
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: var(--sp-3);
  letter-spacing: -.5px;
}
.hero-title em {
  font-style: normal;
  color: var(--clr-accent);
}
.hero-sub {
  font-size: clamp(var(--text-base), 2vw, var(--text-xl));
  opacity: .88;
  max-width: 560px;
  margin: 0 auto var(--sp-5);
  line-height: 1.65;
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  border-radius: var(--radius-pill);
  font-family: var(--font);
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), filter var(--transition);
  white-space: nowrap;
}
.btn:active { transform: scale(.97); }
.btn-lg { padding: 15px 32px; font-size: var(--text-lg); }
.btn-md { padding: 11px 24px; font-size: var(--text-base); }

.btn-primary {
  background: var(--clr-accent);
  color: var(--clr-neutral-900);
  box-shadow: 0 4px 16px rgba(245,158,11,.4);
}
.btn-primary:hover { background: var(--clr-accent-dark); box-shadow: 0 8px 24px rgba(245,158,11,.5); transform: translateY(-2px); }

.btn-delta {
  background: var(--clr-delta-500);
  color: #fff;
  box-shadow: 0 4px 16px rgba(37,99,235,.35);
  width: 100%;
  justify-content: center;
  padding: 14px 24px;
  font-size: var(--text-lg);
  border-radius: var(--radius-md);
}
.btn-delta:hover { background: var(--clr-delta-600); box-shadow: 0 8px 24px rgba(37,99,235,.45); transform: translateY(-2px); }

.btn-united {
  background: var(--clr-united-600);
  color: #fff;
  box-shadow: 0 4px 16px rgba(7,89,133,.35);
  width: 100%;
  justify-content: center;
  padding: 14px 24px;
  font-size: var(--text-lg);
  border-radius: var(--radius-md);
}
.btn-united:hover { background: var(--clr-united-700); box-shadow: 0 8px 24px rgba(7,89,133,.45); transform: translateY(-2px); }

.btn-white {
  background: #fff;
  color: var(--clr-neutral-900);
  box-shadow: var(--shadow-md);
}
.btn-white:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }

/* ── Trust Bar ───────────────────────────────────────────── */
.trust-bar {
  background: var(--clr-neutral-50);
  border-bottom: 1px solid var(--clr-neutral-200);
  padding: var(--sp-3) 0;
}
.trust-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-4);
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--clr-neutral-700);
  letter-spacing: .2px;
}
.trust-item svg { color: var(--clr-delta-500); }

/* ── Main / Cards Section ────────────────────────────────── */
#services { padding: var(--sp-10) 0; background: #fff; }
.main-wrap { max-width: 1160px; }

.section-heading {
  font-size: clamp(var(--text-2xl), 3.5vw, var(--text-4xl));
  font-weight: 800;
  color: var(--clr-neutral-900);
  text-align: center;
  margin-bottom: var(--sp-2);
  letter-spacing: -.4px;
}
.section-sub {
  text-align: center;
  color: var(--clr-neutral-600);
  font-size: var(--text-lg);
  margin-bottom: var(--sp-6);
}

.cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
}

/* ── Airline Card ────────────────────────────────────────── */
.airline-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--clr-neutral-200);
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition), transform var(--transition);
}
.airline-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-6px);
}

/* Image */
.card-image-wrap {
  position: relative;
  overflow: hidden;
  height: 220px;
}
.card-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}
.airline-card:hover .card-image-wrap img { transform: scale(1.05); }
.card-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.55) 30%, transparent 70%);
  display: flex;
  align-items: flex-end;
  padding: var(--sp-2);
}
.airline-badge {
  display: inline-block;
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  font-weight: 700;
  padding: 5px 14px;
  letter-spacing: .3px;
  text-transform: uppercase;
}
.delta-badge  { background: var(--clr-delta-500);  color: #fff; }
.united-badge { background: var(--clr-united-600); color: #fff; }

/* Delta card accent border */
.delta-card  { border-top: 4px solid var(--clr-delta-500); }
.united-card { border-top: 4px solid var(--clr-united-600); }

/* Card body */
.card-body {
  padding: var(--sp-4);
  display: flex;
  flex-direction: column;
  flex: 1;
}
.card-title {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--clr-neutral-900);
  margin-bottom: var(--sp-1);
  letter-spacing: -.3px;
}
.card-desc {
  color: var(--clr-neutral-600);
  font-size: var(--text-base);
  margin-bottom: var(--sp-3);
  line-height: 1.55;
}

/* Service list */
.service-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: var(--sp-4);
  flex: 1;
}
.service-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--text-base);
  color: var(--clr-neutral-700);
  font-weight: 500;
}
.delta-card  .list-icon { color: var(--clr-delta-500);  }
.united-card .list-icon { color: var(--clr-united-600); }

.card-cta { margin-top: auto; }

/* ── CTA Band ────────────────────────────────────────────── */
.cta-band {
  background: linear-gradient(135deg, var(--clr-neutral-900) 0%, var(--clr-delta-600) 100%);
  padding: var(--sp-8) 0;
}
.cta-band-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  flex-wrap: wrap;
}
.cta-band-text h2 {
  font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl));
  font-weight: 800;
  color: #fff;
  margin-bottom: 6px;
}
.cta-band-text p {
  color: rgba(255,255,255,.75);
  font-size: var(--text-lg);
}

/* ── Footer ──────────────────────────────────────────────── */
.footer {
  background: var(--clr-neutral-900);
  color: var(--clr-neutral-400);
  font-size: var(--text-sm);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--sp-5);
  padding: var(--sp-8) var(--sp-3);
}
.footer-col h3 {
  color: #fff;
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--sp-2);
  letter-spacing: .2px;
}
.footer-col p { line-height: 1.7; }

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--sp-2);
}
.footer-logo svg { color: var(--clr-accent); }

.footer-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  text-decoration: none;
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: 6px;
  transition: color var(--transition);
}
.footer-phone:hover { color: var(--clr-delta-400); }
.footer-hours { font-size: var(--text-sm); color: var(--clr-neutral-400); }

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-nav a {
  color: var(--clr-neutral-400);
  text-decoration: none;
  transition: color var(--transition);
}
.footer-nav a:hover { color: #fff; }

/* Footer disclaimer */
.footer-disclaimer {
  border-top: 1px solid var(--clr-neutral-800);
  padding: var(--sp-2) var(--sp-3);
  font-size: var(--text-sm);
  color: #b45309;
  background: #fefce8;
}
.footer-disclaimer-inner {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  text-align: center;
}
.footer-disclaimer svg { flex-shrink: 0; color: #b45309; }

/* Footer bottom */
.footer-bottom {
  border-top: 1px solid var(--clr-neutral-800);
  padding: var(--sp-2) var(--sp-3);
  text-align: center;
  font-size: var(--text-sm);
  color: var(--clr-neutral-600);
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 900px) {
  .cards-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-col:first-child { grid-column: 1 / -1; }
  .cta-band-inner { justify-content: center; text-align: center; }
}

@media (max-width: 600px) {
  .header-phone { display: none; }
  .hero-content { padding: var(--sp-8) var(--sp-2); }
  .trust-inner { gap: var(--sp-2); }
  .footer-grid {
    grid-template-columns: 1fr;
    padding: var(--sp-5) var(--sp-2);
    gap: var(--sp-4);
  }
  .footer-col:first-child { grid-column: auto; }
  .card-image-wrap { height: 180px; }
  .card-body { padding: var(--sp-3); }
}

@media (max-width: 400px) {
  .container { padding: 0 var(--sp-2); }
  .btn-lg { padding: 13px 22px; font-size: var(--text-base); }
}