/**
 * TripMura Design System — 60FPS Luxury Vector Flight Preloader
 * 1.4s Pure Eased 2D Jet Trajectory + Concentric Scale Reveal
 */

/* ==========================================================================
   1. Preloader Viewport Stage
   ========================================================================== */
.site-preloader {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 99999;
  background: #fafbfc;
  background: radial-gradient(circle at 50% 46%, #ffffff 0%, #f8fafc 55%, #f1f5f9 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.6s ease,
              transform 0.6s ease,
              visibility 0.6s ease;
  will-change: opacity, transform;
  overflow: hidden;
}

body:not(.preloader-done) {
  overflow: hidden !important;
}

.site-preloader.loaded {
  opacity: 0;
  visibility: hidden;
  transform: scale(1.05);
  pointer-events: none;
  transition: opacity 0.6s ease,
              transform 0.6s ease,
              visibility 0.6s ease;
}

/* Container inside preloader */
.preloader-shell {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 420px;
  width: 90%;
  padding: var(--space-4, 16px);
  position: relative;
  z-index: 2;
}

/* ==========================================================================
   2. Centered M-Symbol with Breathing Aura
   ========================================================================== */
.preloader-brand-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4, 16px);
}

.preloader-symbol-aura {
  position: absolute;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(2, 132, 199, 0.22) 0%, rgba(2, 132, 199, 0) 70%);
  animation: preloader-aura-pulse 2.4s ease-in-out infinite alternate;
}

.preloader-symbol {
  width: 52px;
  height: 52px;
  position: relative;
  z-index: 2;
  filter: drop-shadow(0 6px 16px rgba(2, 132, 199, 0.28));
  animation: preloader-symbol-float 2.4s ease-in-out infinite alternate;
}

@keyframes preloader-aura-pulse {
  0% { transform: scale(0.85); opacity: 0.5; }
  100% { transform: scale(1.3); opacity: 0.9; }
}

@keyframes preloader-symbol-float {
  0% { transform: translateY(0) scale(1); }
  100% { transform: translateY(-4px) scale(1.03); }
}

/* ==========================================================================
   3. Vector Flight Arc & 2D Animated Airplane
   ========================================================================== */
.preloader-flight-stage {
  position: relative;
  width: 280px;
  height: 70px;
  margin-bottom: var(--space-2, 8px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.preloader-flight-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

/* Faint background flight track */
.flight-path-bg {
  stroke: rgba(2, 132, 199, 0.15);
  stroke-width: 2.5;
  stroke-dasharray: 4 4;
  fill: none;
  stroke-linecap: round;
}

/* Active solid glowing azure flight progress trail */
.flight-path-active {
  stroke: url(#preloaderSkyGrad);
  stroke-width: 3;
  fill: none;
  stroke-linecap: round;
  stroke-dasharray: 280;
  stroke-dashoffset: 280;
  filter: drop-shadow(0 2px 6px rgba(2, 132, 199, 0.35));
  will-change: stroke-dashoffset;
}

/* 2D Minimalist Vector Jet */
.flight-jet-group {
  position: absolute;
  top: 0;
  left: 0;
  width: 24px;
  height: 24px;
  transform-origin: center center;
  pointer-events: none;
  will-change: transform;
  filter: drop-shadow(0 3px 6px rgba(15, 23, 42, 0.22));
}

.flight-jet-icon {
  width: 24px;
  height: 24px;
  fill: var(--primary-azure, #0284c7);
  transform: rotate(0deg);
}

/* ==========================================================================
   4. Elegant Percentage Counter & Subtext
   ========================================================================== */
.preloader-counter-wrap {
  display: flex;
  align-items: baseline;
  justify-content: center;
  margin-bottom: var(--space-1, 4px);
}

.preloader-counter {
  font-family: 'Plus Jakarta Sans', var(--font-sans, system-ui);
  font-size: clamp(2.4rem, 6vw, 3.2rem);
  font-weight: 800;
  color: #0f172a;
  letter-spacing: -0.04em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 60%, #0284c7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.preloader-subtext {
  font-size: 0.85rem;
  font-weight: 600;
  color: #64748b;
  letter-spacing: 0.02em;
  margin-top: 6px;
  animation: preloader-shimmer 2s ease-in-out infinite alternate;
}

@keyframes preloader-shimmer {
  0% { opacity: 0.7; }
  100% { opacity: 1; color: #0284c7; }
}

/* ==========================================================================
   5. Smooth Hero Staggered Entrance Reveal
   ========================================================================== */
body:not(.preloader-done) .site-header,
body:not(.preloader-done) .hero-headline,
body:not(.preloader-done) .hero-subheadline,
body:not(.preloader-done) .multimodal-search-card,
body:not(.preloader-done) .hero-route-preview,
body:not(.preloader-done) .social-proof-bar {
  opacity: 0;
  transform: translateY(18px);
}

body.preloader-done .site-header {
  opacity: 1;
  transform: none;
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

body.preloader-done .hero-headline {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1) 0.1s, transform 0.7s cubic-bezier(0.16, 1, 0.3, 1) 0.1s;
}

body.preloader-done .hero-subheadline {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1) 0.18s, transform 0.7s cubic-bezier(0.16, 1, 0.3, 1) 0.18s;
}

body.preloader-done .multimodal-search-card {
  opacity: 1;
  transform: none;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.25s, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.25s;
}

body.preloader-done .hero-route-preview,
body.preloader-done .social-proof-bar {
  opacity: 1;
  transform: none;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.32s, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.32s;
}

/* ==========================================================================
   6. Luxury Metasearch Loading Transition Overlay (#searchTransitionOverlay)
   ========================================================================== */
.search-transition-overlay {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 999999;
  background: rgba(15, 23, 42, 0.84);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1),
              visibility 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.search-transition-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.search-transition-card {
  position: relative;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.4),
              0 0 40px rgba(0, 242, 254, 0.25);
  border-radius: var(--radius-card-lg, 24px);
  padding: 36px 32px 32px;
  width: min(480px, 92vw);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transform: scale(0.92) translateY(10px);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.search-transition-overlay.active .search-transition-card {
  transform: scale(1) translateY(0);
}

/* Radar pulse wave behind symbol */
.search-radar-halo {
  position: absolute;
  top: 36px;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  border: 2px solid rgba(0, 242, 254, 0.6);
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.4);
  animation: search-radar-pulse 1.6s ease-out infinite;
  pointer-events: none;
}

@keyframes search-radar-pulse {
  0% { transform: scale(0.6); opacity: 1; }
  100% { transform: scale(2.2); opacity: 0; }
}

.search-flight-stage {
  position: relative;
  width: 280px;
  height: 70px;
  margin: 12px 0 16px;
}

.search-counter-wrap {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 2px;
  margin-bottom: 8px;
}

.search-counter-val {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-primary, #0f172a);
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.search-progress-bar-shell {
  width: 100%;
  height: 6px;
  background: #e2e8f0;
  border-radius: var(--radius-pill, 9999px);
  overflow: hidden;
  margin-bottom: 20px;
}

.search-progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #00f2fe 0%, #0284c7 100%);
  border-radius: var(--radius-pill, 9999px);
  transition: width 0.05s linear;
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.6);
}

.search-status-message-box {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
  margin-bottom: 20px;
}

.search-status-text {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary-azure-dark, #0369a1);
  line-height: 1.4;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.search-status-text.fading {
  opacity: 0;
  transform: translateY(-4px);
}

.search-providers-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px;
  padding-top: 16px;
  border-top: 1px dashed #e2e8f0;
  width: 100%;
}

.search-provider-pill {
  font-size: 0.72rem;
  font-weight: 700;
  color: #64748b;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  padding: 3px 8px;
  border-radius: var(--radius-pill, 9999px);
  transition: all 0.2s ease;
}

.search-provider-pill.active-pulse {
  background: rgba(2, 132, 199, 0.1);
  color: #0284c7;
  border-color: rgba(2, 132, 199, 0.3);
  transform: translateY(-1px);
}