/* ═══════════════════════════════════════════════════════════════════════
   VOL8HUB — Shared Stylesheet
   Applies to: index.html, archive.html, submit.html, about.html,
               disclaimer.html, tos.html, privacy.html
   ═══════════════════════════════════════════════════════════════════════ */

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

/* ─── TOKENS ─────────────────────────────────────────────────────────── */
:root {
  --white:        #FFFFFF;
  --off-white:    #F7F8FA;
  --page:         #F2F4F7;
  --navy:         #0A1628;
  --navy2:        #112040;
  --blue:         #0F4C81;
  --blue-mid:     #1765A8;
  --blue-light:   #4A90D9;
  --blue-pale:    #E8F0FA;
  --blue-glow:    rgba(15,76,129,0.15);
  --amber:        #B45309;
  --amber-bg:     #FEF3C7;
  --green:        #059669;
  --border:       #DDE4ED;
  --border-strong:#B8C8DC;
  --text-1:       #0A1628;
  --text-2:       #3A5070;
  --text-3:       #7A95B0;
  --mono:         'Courier New', Courier, monospace;
  --sans:         system-ui, -apple-system, sans-serif;
  --ease-out:     cubic-bezier(0.22, 1, 0.36, 1);
}

html { scroll-behavior: smooth; }

body {
  background: var(--white);
  color: var(--text-1);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ─── HEADER ─────────────────────────────────────────────────────────── */
header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  height: 56px;
  display: flex; align-items: center;
  padding: 0 2rem;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(221,228,237,0.7);
}

.logo {
  font-family: var(--mono);
  font-size: 15px; font-weight: 700;
  color: var(--blue); letter-spacing: 0.14em;
  text-decoration: none; margin-right: auto;
}

nav { display: flex; align-items: center; gap: 0.15rem; }

nav a {
  font-size: 14px; color: var(--text-2);
  text-decoration: none;
  padding: 0.35rem 0.9rem;
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
}
nav a:hover { color: var(--blue); background: var(--blue-pale); }
nav a.active { color: var(--blue); font-weight: 600; }

.nav-login {
  border: 1.5px solid var(--border-strong);
  color: var(--text-1) !important;
  font-size: 13px !important;
  padding: 0.3rem 1rem !important;
  margin-left: 0.5rem;
  border-radius: 20px !important;
}
.nav-login:hover {
  border-color: var(--blue) !important;
  color: var(--blue) !important;
  background: var(--blue-pale) !important;
}

.hamburger {
  display: none; background: none; border: none;
  cursor: pointer; padding: 4px;
  flex-direction: column; gap: 5px; margin-left: auto;
}
.hamburger span {
  display: block; width: 22px; height: 2px;
  background: var(--text-3); border-radius: 1px;
  transition: background 0.15s;
}

/* ─── PAGE BODY OFFSET ───────────────────────────────────────────────── */
.page-body { padding-top: 56px; }

/* ─── SECTION CHROME ─────────────────────────────────────────────────── */
.section-eyebrow {
  font-family: var(--mono);
  font-size: 10px; letter-spacing: 0.22em;
  color: var(--text-3); text-transform: uppercase;
  margin-bottom: 0.6rem;
}
.section-heading {
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  font-weight: 700; color: var(--text-1);
  letter-spacing: -0.01em;
  margin-bottom: 0.6rem;
}
.section-sub {
  font-size: 0.95rem; color: var(--text-2);
  line-height: 1.65;
}

/* ─── BUTTONS ────────────────────────────────────────────────────────── */
.btn-primary {
  font-size: 14px; font-weight: 600;
  background: var(--blue); color: #FFFFFF;
  border: none; padding: 0.72rem 1.75rem;
  border-radius: 7px; cursor: pointer;
  text-decoration: none; display: inline-block;
  transition: background 0.15s, transform 0.15s;
}
.btn-primary:hover { background: var(--blue-mid); transform: translateY(-1px); }

.btn-secondary {
  font-size: 14px; font-weight: 600;
  background: transparent; color: var(--blue);
  border: 1.5px solid var(--blue);
  padding: 0.72rem 1.75rem;
  border-radius: 7px; cursor: pointer;
  text-decoration: none; display: inline-block;
  transition: background 0.15s, color 0.15s;
}
.btn-secondary:hover { background: var(--blue); color: #fff; }

.btn-hero-primary {
  font-size: 15px; font-weight: 600;
  background: #FFFFFF; color: var(--navy);
  border: none; padding: 0.85rem 2rem;
  border-radius: 8px; cursor: pointer;
  text-decoration: none; display: inline-block;
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s;
}
.btn-hero-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.25);
}

.btn-hero-secondary {
  font-size: 15px; font-weight: 600;
  background: transparent; color: rgba(255,255,255,0.8);
  border: 1.5px solid rgba(255,255,255,0.25);
  padding: 0.85rem 2rem; border-radius: 8px;
  cursor: pointer; text-decoration: none; display: inline-block;
  transition: border-color 0.2s, background 0.2s, color 0.2s;
}
.btn-hero-secondary:hover {
  border-color: rgba(255,255,255,0.6);
  color: #fff; background: rgba(255,255,255,0.07);
}

/* ─── BADGES & TAGS ──────────────────────────────────────────────────── */
.badge-fleet {
  font-family: var(--mono); font-size: 11px; font-weight: 700;
  letter-spacing: 0.1em;
  background: var(--blue); color: #fff;
  padding: 2px 9px; border-radius: 4px;
  display: inline-block;
}

/* ─── FLEET BADGE COLOUR CODING (archive.html cards) ────────────────────
   Airbus family stays blue spectrum, Boeing family moves to charcoal/grey.
   Applies to both the fleet box and the fleet pill via the entry-card's
   data-fleet attribute — cycle badge (PC6/RT5 etc) is untouched. ───────── */
.entry-card[data-fleet="A320"] .card-fleet-box,
.entry-card[data-fleet="A320"] .badge-fleet   { background: #0E7490; color: #FFFFFF; }
.entry-card[data-fleet="A330"] .card-fleet-box,
.entry-card[data-fleet="A330"] .badge-fleet   { background: #4F6D8A; color: #FFFFFF; }
.entry-card[data-fleet="A350"] .card-fleet-box,
.entry-card[data-fleet="A350"] .badge-fleet   { background: #0F4C81; color: #FFFFFF; }
.entry-card[data-fleet="A350K"] .card-fleet-box,
.entry-card[data-fleet="A350K"] .badge-fleet  { background: #0A3260; color: #FFFFFF; }
.entry-card[data-fleet="B777"] .card-fleet-box,
.entry-card[data-fleet="B777"] .badge-fleet   { background: #374151; color: #FFFFFF; }
.entry-card[data-fleet="B777ER"] .card-fleet-box,
.entry-card[data-fleet="B777ER"] .badge-fleet { background: #1F2937; color: #FFFFFF; }
.badge-check {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em;
  color: var(--text-2); border: 1px solid var(--border);
  padding: 2px 7px; border-radius: 4px; background: var(--off-white);
  display: inline-block;
}
.badge-unverified {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em;
  color: #FFFFFF; background: var(--amber);
  border: 1px solid var(--amber);
  padding: 2px 7px; border-radius: 4px;
  display: inline-block;
}
.tag {
  font-family: var(--mono); font-size: 9px; letter-spacing: 0.06em;
  color: var(--text-3); border: 1px solid var(--border);
  padding: 2px 6px; border-radius: 3px; background: var(--off-white);
  display: inline-block;
}

/* ─── FILTER BAR ─────────────────────────────────────────────────────── */
.filter-bar {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  display: flex; flex-direction: column; gap: 0.75rem;
}
.filter-group {
  display: flex; align-items: center;
  gap: 0.75rem; flex-wrap: wrap;
}
.filter-group-label {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--text-3); min-width: 36px; flex-shrink: 0;
}
.filter-pills { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.fpill {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em;
  background: var(--off-white); color: var(--text-2);
  border: 1px solid var(--border);
  padding: 0.3rem 0.75rem; border-radius: 20px;
  cursor: pointer; white-space: nowrap;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.fpill:hover { border-color: var(--blue); color: var(--blue); }
.fpill.active { background: var(--blue); color: #fff; border-color: var(--blue); }

/* ─── SCROLL REVEAL ──────────────────────────────────────────────────── */
.reveal {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.65s var(--ease-out), transform 0.65s var(--ease-out);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-d1 { transition-delay: 0.1s; }
.reveal-d2 { transition-delay: 0.2s; }
.reveal-d3 { transition-delay: 0.3s; }

/* ─── FOOTER ─────────────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 1.75rem 2rem;
  background: var(--white);
  display: flex; align-items: center;
  justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
}
.footer-links {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 12px; color: var(--text-3);
}
.footer-links a {
  color: var(--text-3); text-decoration: none;
  transition: color 0.15s;
}
.footer-links a:hover { color: var(--blue); }
.footer-links .sep { color: var(--border); }
.footer-copy {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.08em; color: var(--text-3);
}

/* ─── INNER CONTENT WRAPPER ──────────────────────────────────────────── */
.content-inner { max-width: 1060px; margin: 0 auto; }

/* ─── MOBILE ─────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .hamburger { display: flex; }
  nav {
    display: none;
    position: fixed; top: 56px; left: 0; right: 0;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 1rem 2rem; gap: 0.25rem; z-index: 199;
  }
  nav.open { display: flex; }
  nav a { font-size: 16px; padding: 0.6rem 0; border-radius: 0; }
  .nav-login { margin-left: 0; margin-top: 0.5rem; }
  footer { flex-direction: column; align-items: center; text-align: center; }
}