/* ============================================================
   RS TRAVEL — PWA-specific Styles
   Appended to style.css or loaded separately
   ============================================================ */

/* ─── Install / Update Banner ───────────────────────────── */
#pwa-install-banner,
#pwa-update-banner {
  position: fixed;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%) translateY(140%);
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--clr-primary);
  color: #fff;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  min-width: 320px;
  max-width: 480px;
  width: calc(100vw - 2.5rem);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
}

#pwa-install-banner.pwa-banner-visible,
#pwa-update-banner.pwa-banner-visible {
  transform: translateX(-50%) translateY(0);
}

.pwa-banner-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius);
}

.pwa-banner-text {
  flex: 1;
  min-width: 0;
}
.pwa-banner-text strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 2px;
}
.pwa-banner-text span {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.65);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
}

.pwa-banner-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.pwa-btn-install {
  background: var(--clr-yellow);
  color: var(--clr-primary-dark);
  border: none;
  border-radius: var(--radius);
  padding: 0.45rem 1rem;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font);
  white-space: nowrap;
}
.pwa-btn-install:hover { background: var(--clr-yellow-dark); }

.pwa-btn-dismiss {
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.7);
  border: none;
  border-radius: var(--radius);
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.85rem;
  font-family: var(--font);
}
.pwa-btn-dismiss:hover { background: rgba(255,255,255,0.2); color: #fff; }

/* ─── Offline Indicator ─────────────────────────────────── */
#pwa-connection-indicator {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10000;
  background: var(--clr-error);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.5rem;
  transform: translateY(-100%);
  transition: transform 0.3s ease;
}
#pwa-connection-indicator.pwa-offline-visible {
  transform: translateY(0);
}

/* ─── Offline Page ──────────────────────────────────────── */
.offline-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-primary);
  position: relative;
  overflow: hidden;
}
.offline-page::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(245,197,24,0.07) 1px, transparent 1px);
  background-size: 28px 28px;
}
.offline-card {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 3rem 2rem;
  max-width: 420px;
}
.offline-icon-wrap {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: rgba(245,197,24,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 2rem;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.06); opacity: 0.8; }
}
.offline-icon-wrap .material-symbols-outlined {
  font-size: 3rem;
  color: var(--clr-yellow);
}
.offline-card h1 {
  font-size: 1.8rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.75rem;
}
.offline-card p {
  color: rgba(255,255,255,0.65);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}
.offline-card .cached-hint {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 1rem;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.55);
  margin-top: 1.5rem;
}

/* ─── PWA "Installed" mode adjustments ─────────────────── */
@media (display-mode: standalone) {
  /* Hide browser-native back button area compensation */
  .navbar { padding-top: env(safe-area-inset-top); }

  body {
    padding-bottom: env(safe-area-inset-bottom);
  }

  /* Bottom nav bar for mobile app-like feel */
  .pwa-bottom-nav {
    display: flex !important;
  }
}

/* ─── PWA Bottom Navigation (mobile app mode) ───────────── */
.pwa-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 900;
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  padding: 0.4rem 0 calc(0.4rem + env(safe-area-inset-bottom));
  justify-content: space-around;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.08);
}
.pwa-bottom-nav a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 0.35rem 1rem;
  color: var(--clr-text-muted);
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: var(--transition);
  border-radius: var(--radius);
}
.pwa-bottom-nav a.active,
.pwa-bottom-nav a:hover {
  color: var(--clr-primary);
}
.pwa-bottom-nav a .material-symbols-outlined {
  font-size: 1.4rem;
}

/* Compensate body for bottom nav in PWA mode */
@media (display-mode: standalone) {
  body { padding-bottom: calc(72px + env(safe-area-inset-bottom)); }
  .pwa-bottom-nav { display: flex; }
}

/* ─── Splash-like Loading State ─────────────────────────── */
.pwa-splash {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: var(--clr-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1rem;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
.pwa-splash.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.pwa-splash-logo {
  width: 80px;
  height: 80px;
  background: rgba(245,197,24,0.15);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.pwa-splash-logo .material-symbols-outlined {
  font-size: 3rem;
  color: var(--clr-yellow);
}
.pwa-splash h1 {
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
}
.pwa-splash h1 span { color: var(--clr-yellow); }
.pwa-spinner {
  width: 24px;
  height: 24px;
  border: 2px solid rgba(245,197,24,0.2);
  border-top-color: var(--clr-yellow);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Install Trigger Button (in nav) ───────────────────── */
#pwa-install-trigger {
  display: none;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.9rem;
  background: var(--clr-yellow-pale);
  color: var(--clr-yellow-dark);
  border: 1.5px solid rgba(212, 168, 26, 0.3);
  border-radius: var(--radius);
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font);
}
#pwa-install-trigger:hover { background: var(--clr-yellow); color: var(--clr-primary-dark); }
#pwa-install-trigger.visible { display: flex; }