/* ──────────────────────────────────────────────
   Flight Hub — Public Frontend CSS
   Font: Inter from Google Fonts
────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --primary:       #1e3a8a;
  --primary-dark:  #172554;
  --primary-light: #eff6ff;
  --accent:        #d97706;
  --accent-dark:   #b45309;
  --success:       #10b981;
  --warning:       #f59e0b;
  --danger:        #ef4444;
  --dark:          #0f172a;
  --dark-2:        #1e293b;
  --text:          #334155;
  --text-muted:    #64748b;
  --border:        #e2e8f0;
  --body-bg:       #f8fafc;
  --card-bg:       #ffffff;
  --radius:        16px;
  --radius-sm:     10px;
  --shadow:        0 4px 24px rgba(0,0,0,.08);
  --shadow-lg:     0 20px 60px rgba(0,0,0,.12);
  --transition:    0.25s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: var(--body-bg);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); }

/* ── NAVBAR ───────────────────────────────── */
.navbar-custom {
  background: transparent;
  padding: 20px 0;
  transition: all var(--transition);
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.navbar-custom.scrolled {
  background: rgba(255,255,255,.98);
  backdrop-filter: blur(20px);
  padding: 12px 0;
  box-shadow: 0 4px 30px rgba(0,0,0,.08);
  border-bottom: none;
}
.navbar-brand {
  font-weight: 800;
  font-size: 1.35rem;
  color: #fff !important;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: color var(--transition);
}
.navbar-custom.scrolled .navbar-brand {
  color: var(--dark-2) !important;
}
.navbar-brand .logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: .95rem;
  color: #fff;
}
.nav-link-custom {
  color: rgba(255,255,255,.8) !important;
  font-weight: 600;
  font-size: .95rem;
  padding: 8px 16px !important;
  border-radius: 8px;
  transition: all var(--transition);
}
.navbar-custom.scrolled .nav-link-custom {
  color: var(--text) !important;
}
.nav-link-custom:hover { color: #fff !important; }
.navbar-custom.scrolled .nav-link-custom:hover { color: var(--primary) !important; background: var(--primary-light); }

.btn-nav { 
  border: 1px solid var(--primary); color: #fff !important;
  border-radius: var(--radius-sm); font-weight: 600; font-size: .9rem;
  padding: 10px 24px !important;
  transition: all var(--transition);
}
.btn-nav:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(79,70,229,.3); }

/* ── HERO ─────────────────────────────────── */
.hero {
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 60px;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, rgba(15,23,42,.85) 0%, rgba(15,23,42,.5) 100%);
  pointer-events: none;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 99px;
  padding: 6px 16px;
  font-size: .8rem;
  color: rgba(255,255,255,.8);
  font-weight: 500;
  margin-bottom: 20px;
}
.hero-tag .dot { width: 6px; height: 6px; background: var(--accent); border-radius: 50%; animation: pulse 1.5s infinite; }

@keyframes pulse { 0%,100%{transform:scale(1);opacity:1} 50%{transform:scale(1.5);opacity:.7} }

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 900;
  color: #fff;
  line-height: 1.1;
  margin-bottom: 20px;
}
.hero h1 .gradient-text {
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  color: rgba(255,255,255,.65);
  font-size: 1.1rem;
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 32px;
}
.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 40px;
}
.hero-stat-value { font-size: 1.6rem; font-weight: 800; color: #fff; line-height: 1; }
.hero-stat-label { font-size: .75rem; color: rgba(255,255,255,.5); margin-top: 4px; }

/* ── SEARCH CARD (GLASSMORPHISM) ──────────── */
.search-card {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-radius: 20px;
  box-shadow: 0 16px 40px rgba(0,0,0,.2);
  padding: 32px;
  position: relative;
  z-index: 10;
  border: 1px solid rgba(255,255,255,.3);
}

.search-tabs { 
  display: flex; 
  gap: 4px;
  background: rgba(0,0,0,.2);
  padding: 6px;
  border-radius: 12px;
  margin-bottom: 24px;
  width: fit-content;
}
.search-tab {
  padding: 10px 24px;
  border-radius: 8px;
  font-weight: 700;
  font-size: .85rem;
  color: rgba(255,255,255,.8);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  background: transparent;
}
.search-tab.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(79,70,229,.4);
}

.search-field label {
  font-size: .75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: #fff;
  margin-bottom: 8px;
  display: block;
}
.search-input {
  width: 100%;
  border: 1.5px solid transparent;
  border-radius: var(--radius-sm);
  padding: 14px 14px 14px 40px;
  font-size: .95rem;
  font-family: 'Inter', sans-serif;
  color: var(--dark);
  background: rgba(255,255,255,.9);
  transition: all var(--transition);
  outline: none;
}
.search-input:focus {
  background: #fff;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(6,182,212,.2);
}
.search-field .input-wrap {
  position: relative;
}
.search-field .input-wrap > i {
  position: absolute;
  left: 14px; top: 50%;
  transform: translateY(-50%);
  color: var(--primary);
  font-size: 1rem;
  pointer-events: none;
  z-index: 2;
}

.swap-btn {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: #fff;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
  color: var(--primary);
  margin: auto;
  margin-top: 24px;
}
.swap-btn:hover { border-color: var(--primary); background: var(--primary-light); transform: rotate(180deg); }

.btn-search {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  width: 100%;
  display: flex; align-items: center; justify-content: center; gap: 10px;
}
.btn-search:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(79,70,229,.35); }

/* ── AIRLINE LOGOS ────────────────────────── */
.airlines-bar {
  padding: 40px 0;
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.airline-logo {
  height: 32px;
  opacity: .45;
  filter: grayscale(1);
  transition: all var(--transition);
}
.airline-logo:hover { opacity: 1; filter: grayscale(0); }

/* ── SECTION ──────────────────────────────── */
.section { padding: 80px 0; }
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--dark);
  line-height: 1.2;
}
.section-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  margin-top: 10px;
  max-width: 540px;
}
.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 99px;
  padding: 4px 14px;
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: 12px;
}

/* ── SERVICE CARDS (IMAGE BACKED) ─────────── */
.service-card-img {
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  display: block;
  text-decoration: none;
  height: 320px;
  transition: transform var(--transition);
  box-shadow: 0 10px 30px rgba(0,0,0,.1);
}
.service-card-img:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0,0,0,.2);
}
.service-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.service-card-img:hover img {
  transform: scale(1.08);
}
.service-card-img .overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, rgba(15,23,42,.95) 0%, rgba(15,23,42,.7) 60%, transparent 100%);
  padding: 40px 24px 24px;
  color: #fff;
}
.service-card-img .icon {
  width: 48px; height: 48px;
  background: var(--primary);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  margin-bottom: 16px;
  color: #fff;
  box-shadow: 0 4px 12px rgba(79,70,229,.4);
}
.service-card-img h3 { font-size: 1.2rem; font-weight: 800; margin-bottom: 8px; color: #fff; }
.service-card-img p { font-size: .85rem; color: rgba(255,255,255,.7); line-height: 1.6; margin-bottom: 16px; }
.service-card-img .arrow { 
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--accent); font-weight: 700; font-size: .85rem;
  text-transform: uppercase; letter-spacing: 1px;
}

/* ── DESTINATION CARDS ────────────────────── */
.dest-card {
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: block;
  text-decoration: none;
  height: 280px;
  box-shadow: 0 10px 30px rgba(0,0,0,.08);
}
.dest-card:hover { 
  transform: translateY(-8px); 
  box-shadow: 0 20px 40px rgba(0,0,0,.15);
}
.dest-card img { 
  width: 100%; height: 100%; object-fit: cover; display: block; 
  transition: transform 0.6s ease;
}
.dest-card:hover img {
  transform: scale(1.08);
}
.dest-card .overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, rgba(15,23,42,.95) 0%, rgba(15,23,42,.4) 60%, transparent 100%);
  padding: 30px 20px 20px;
}
.dest-card .city { font-size: 1.25rem; font-weight: 800; color: #fff; margin-bottom: 2px; position: relative; z-index: 2; }
.dest-card .price { font-size: .95rem; color: var(--accent); font-weight: 600; position: relative; z-index: 2; }
.dest-card .airport-code {
  font-size: 3.5rem;
  font-weight: 900;
  color: rgba(255,255,255,0.08);
  line-height: 1;
  position: absolute;
  right: 16px;
  bottom: 12px;
  z-index: 1;
}
.dest-card .badge-from { 
  position: absolute; top: 16px; right: 16px;
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 99px; padding: 6px 16px;
  font-size: .75rem; font-weight: 700;
  transition: all 0.3s;
}
.dest-card:hover .badge-from {
  background: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(30,58,138,.4);
}

/* ── TESTIMONIALS ─────────────────────────── */
.testimonial-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all var(--transition);
}
.testimonial-card:hover { box-shadow: var(--shadow); }
.stars { color: var(--warning); font-size: .85rem; margin-bottom: 12px; }
.testimonial-card p { font-size: .92rem; color: var(--text); line-height: 1.7; font-style: italic; margin-bottom: 20px; }
.author-avatar { width: 44px; height: 44px; border-radius: 50%; margin-right: 12px; }
.author-name { font-weight: 700; font-size: .9rem; }
.author-meta { font-size: .75rem; color: var(--text-muted); }

/* ── WHY US ───────────────────────────────── */
.why-card {
  display: flex;
  gap: 18px;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
  height: 100%;
}
.why-card:hover { 
  border-color: var(--primary); 
  box-shadow: 0 15px 35px rgba(0,0,0,.04);
  transform: translateY(-4px);
}
.why-icon { 
  width: 52px; height: 52px; min-width: 52px;
  border-radius: 50%; 
  background: linear-gradient(135deg, var(--primary-light), #fff);
  color: var(--primary);
  border: 1px solid rgba(30,58,138,.1);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem;
}
.why-card h4 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; color: var(--dark-2); }
.why-card p  { font-size: .85rem; color: var(--text-muted); margin: 0; line-height: 1.6; }

.image-stack {
  position: relative;
  z-index: 1;
}
.image-stack::before {
  content: '';
  position: absolute;
  top: -20px;
  left: -20px;
  width: 100px;
  height: 100px;
  background: radial-gradient(var(--accent) 2px, transparent 2px);
  background-size: 15px 15px;
  z-index: -1;
  opacity: 0.3;
}
.image-stack::after {
  content: '';
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 60%;
  height: 60%;
  background: var(--primary-light);
  border-radius: 20px;
  z-index: -1;
}

/* ── CTA BANNER ───────────────────────────── */
.cta-banner {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius);
  padding: 60px 48px;
  position: relative;
  overflow: hidden;
  color: #fff;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 400px; height: 400px;
  background: rgba(255,255,255,.06);
  border-radius: 50%;
}
.cta-banner h2 { font-size: 2rem; font-weight: 800; margin-bottom: 12px; }
.cta-banner p  { opacity: .8; margin-bottom: 28px; }
.btn-cta {
  background: #fff;
  color: var(--primary);
  border: none;
  border-radius: var(--radius-sm);
  padding: 14px 32px;
  font-weight: 700;
  font-size: .95rem;
  cursor: pointer;
  transition: all var(--transition);
  display: inline-block;
}
.btn-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,.2); color: var(--primary); }

/* ── FOOTER ───────────────────────────────── */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,.65);
  padding: 60px 0 0;
}
.footer-brand { color: #fff; font-weight: 800; font-size: 1.25rem; margin-bottom: 12px; }
.footer-desc { font-size: .85rem; line-height: 1.7; margin-bottom: 24px; max-width: 300px; }
.footer-heading { color: #fff; font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px; }
.footer-link { display: block; font-size: .85rem; margin-bottom: 8px; color: rgba(255,255,255,.55); transition: color var(--transition); }
.footer-link:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 20px 0; margin-top: 40px; }
.social-btn {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: rgba(255,255,255,.08);
  display: inline-flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.7);
  transition: all var(--transition);
  font-size: .9rem;
}
.social-btn:hover { background: var(--primary); color: #fff; }

/* ── FLIGHT DETAILS BUTTON ────────────────── */
.btn-details {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
  border-radius: var(--radius-sm);
  padding: 8px 18px;
  font-size: .85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.btn-details:hover {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(30,58,138,.25);
}

/* ── FLIGHT DETAILS MODAL TABS ─────────────── */
.fd-tab-nav {
  display: flex;
  gap: 4px;
  list-style: none;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}
.fd-tab {
  padding: 10px 20px;
  background: transparent;
  border: none;
  border-radius: 8px 8px 0 0;
  font-size: .875rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.fd-tab:hover {
  color: var(--primary);
  background: rgba(30,58,138,.05);
}
.fd-tab.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(30,58,138,.3);
}

/* ── ANIMATIONS ───────────────────────────── */
@keyframes fadeInUp { from { opacity:0; transform:translateY(20px); } to { opacity:1; transform:translateY(0); } }
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-12px)} }
.animate-up { animation: fadeInUp .6s ease-out forwards; }
.float { animation: float 4s ease-in-out infinite; }

/* ── SEARCH RESULTS ───────────────────────── */
.flight-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  transition: all var(--transition);
}
.flight-card:hover { box-shadow: var(--shadow); border-color: var(--primary); }
.airline-name { font-size: .75rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .5px; }
.time-big { font-size: 1.5rem; font-weight: 800; color: var(--dark); }
.duration-line { height: 2px; background: linear-gradient(90deg, var(--primary), var(--accent)); border-radius: 99px; flex: 1; position: relative; }
.duration-line::before, .duration-line::after {
  content: '●'; position: absolute; top: 50%; transform: translateY(-50%);
  color: var(--primary); font-size: .6rem;
}
.duration-line::before { left: 0; }
.duration-line::after  { right: 0; }
.price-tag { font-size: 1.6rem; font-weight: 900; color: var(--primary); }
.price-per { font-size: .75rem; color: var(--text-muted); }
.btn-book {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px 24px;
  font-weight: 700;
  font-size: .875rem;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-book:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(79,70,229,.35); }

.filter-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.filter-card h6 { font-weight: 700; font-size: .82rem; text-transform: uppercase; letter-spacing: .5px; color: var(--text-muted); margin-bottom: 14px; }

.form-range { accent-color: var(--primary); }
.form-check-input:checked { background-color: var(--primary); border-color: var(--primary); }

/* ── BOOKING PAGE ─────────────────────────── */
.booking-hero {
  background: linear-gradient(135deg, var(--dark) 0%, #1e1b4b 100%);
  padding: 80px 0 40px;
  color: #fff;
}
.booking-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--border);
  margin-bottom: 20px;
}
.booking-step {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: .8rem;
  flex-shrink: 0;
}
.price-summary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius);
  padding: 24px;
  color: #fff;
  position: sticky;
  top: 90px;
}
.price-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; font-size: .9rem; }
.price-row.total { font-size: 1.1rem; font-weight: 800; padding-top: 10px; border-top: 1px solid rgba(255,255,255,.2); }
.btn-confirm {
  background: #fff; color: var(--primary);
  border: none; border-radius: var(--radius-sm);
  padding: 14px; width: 100%;
  font-weight: 700; font-size: 1rem;
  cursor: pointer; transition: all var(--transition);
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.btn-confirm:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,.2); }

/* ── RESPONSIVE ───────────────────────────── */
@media (max-width: 768px) {
  .hero { min-height: auto; padding: 80px 0 40px; }
  .hero h1 { font-size: 2rem; }
  .search-card { padding: 20px; }
  .hero-stats { gap: 20px; }
  .cta-banner { padding: 40px 24px; }
  .cta-banner h2 { font-size: 1.5rem; }
}

/* ── SCROLLBAR ────────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 99px; }