/* ============================================================================
   Shared application shell
   ---------------------------------------------------------------------------
   Used by index.php, result_form.php and confirm_flight.php so the booking
   journey uses one visual language for navigation, controls and modal dialogs.
   ============================================================================ */

:root {
    --app-ink: #0f172a;
    --app-muted: #64748b;
    --app-surface: #ffffff;
    --app-canvas: #f8fafc;
    --app-border: #e2e8f0;
    --app-accent: #fbbf24;
    --app-accent-strong: #f59e0b;
    --app-focus: rgba(245, 158, 11, .18);
    --app-shadow: 0 12px 30px rgba(15, 23, 42, .10);
}

html { background: var(--app-canvas); }
body {
    background: var(--app-canvas);
    color: var(--app-ink);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Result and confirmation headers already share the same markup. */
body > header {
    min-height: 64px;
    background: rgba(255, 255, 255, .96) !important;
    border-bottom-color: var(--app-border) !important;
    box-shadow: 0 1px 2px rgba(15, 23, 42, .04) !important;
}

body > header a:focus-visible,
#quote .navbar a:focus-visible,
.flight-details-popup button:focus-visible {
    outline: 3px solid var(--app-focus);
    outline-offset: 2px;
}

/* Bring the legacy Bootstrap header on index.php into the same compact shell. */
#quote { min-height: 64px; }
#quote .navbar {
    min-height: 64px;
    margin: 0;
    padding: 0;
    background: rgba(255, 255, 255, .96);
    border: 0;
    border-bottom: 1px solid var(--app-border);
    box-shadow: 0 1px 2px rgba(15, 23, 42, .04);
}
#quote .navbar .container { width: min(calc(100% - 32px), 1280px); padding: 0; }
#quote .navbar-header .navbar-brand { height: 64px; padding: 8px 0; display: flex; align-items: center; }
#quote .navbar-header .navbar-brand img { width: auto !important; height: 46px; max-width: 150px; object-fit: contain; }
#quote .navbar-collapse { border: 0; box-shadow: none; }
#quote .navbar-default .navbar-nav > li > a {
    color: #475569;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    line-height: 64px;
    padding: 0 14px;
    transition: color .18s ease, background-color .18s ease;
}
#quote .navbar-default .navbar-nav > li > a:hover,
#quote .navbar-default .navbar-nav > li > a:focus,
#quote .navbar-default .navbar-nav > .active > a,
#quote .navbar-default .navbar-nav > .active > a:hover,
#quote .navbar-default .navbar-nav > .active > a:focus {
    color: var(--app-ink);
    background: transparent;
}
#quote .navbar-default .navbar-nav > li.nav-cta > a {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    margin: 12px 0 12px 10px;
    padding: 0 18px;
    line-height: 1;
    color: var(--app-ink);
    background: var(--app-accent);
    border: 1px solid #f59e0b;
    border-radius: 9px;
}
#quote .navbar-default .navbar-nav > li.nav-cta > a:hover { background: var(--app-accent-strong); }

/* Keep the home page's high-impact hero, while reusing the booking accent and CTA shape. */
.home-hero__title .accent { color: var(--app-accent) !important; }
.home-hero__cta {
    color: var(--app-ink) !important;
    background: var(--app-accent) !important;
    border-color: #f59e0b !important;
    border-radius: 9px !important;
    box-shadow: 0 8px 18px rgba(15, 23, 42, .22) !important;
}
.home-hero__cta:hover {
    color: var(--app-ink) !important;
    background: var(--app-accent-strong) !important;
    filter: none !important;
}
#loading-screen .animated-plane,
#loading-screen .spinning-icon { color: var(--app-accent-strong) !important; }

/* One modal component is shared by result and confirmation detail views. */
.flight-details-popup {
    position: fixed !important;
    inset: 0 !important;
    z-index: 100000 !important;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px !important;
    background: transparent !important;
    isolation: isolate;
}
.flight-details-popup.open { display: flex !important; }
.flight-details-popup .popup-overlay {
    position: absolute;
    inset: 0;
    z-index: 0;
    background: rgba(15, 23, 42, .54);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}
.flight-details-popup .popup-content {
    position: relative !important;
    z-index: 1;
    display: flex;
    width: min(780px, calc(100vw - 48px)) !important;
    min-width: 0;
    max-height: min(86vh, 780px);
    margin: 0 !important;
    padding: 0 !important;
    background: transparent !important;
    border: 0 !important;
    border-radius: 20px !important;
    box-shadow: none !important;
    overflow: hidden;
    pointer-events: auto;
    animation: flight-details-enter .22s cubic-bezier(.2, .8, .2, 1) both;
}
#flightDetailsPopup > .popup-content > #popupBody {
    display: block;
    width: 100% !important;
    min-width: 0;
    max-width: 100% !important;
}
.flight-details-popup .flight-details-content {
    position: relative;
    display: flex;
    flex-direction: column;
    width: 100%;
    min-width: 0;
    max-height: inherit;
    overflow: hidden;
    box-sizing: border-box;
    background: #fbfcfe !important;
    border: 1px solid var(--app-border) !important;
    border-radius: 20px !important;
    box-shadow: 0 24px 60px rgba(15, 23, 42, .18), 0 2px 8px rgba(15, 23, 42, .06) !important;
}
.flight-details-popup .popup-header {
    position: relative !important;
    display: flex;
    align-items: center;
    min-height: 74px;
    padding: 20px 64px 20px 26px !important;
    color: var(--app-ink) !important;
    background: rgba(255, 255, 255, .92) !important;
    border-bottom: 1px solid var(--app-border) !important;
}
.flight-details-popup .popup-header::before {
    position: absolute;
    top: 0;
    left: 26px;
    width: 34px;
    height: 3px;
    content: '';
    background: var(--app-accent-strong);
    border-radius: 0 0 3px 3px;
}
.flight-details-popup .popup-header h3 {
    margin: 0 !important;
    color: var(--app-ink) !important;
    font-family: inherit;
    font-size: 19px !important;
    font-weight: 780 !important;
    letter-spacing: -.025em;
}
.flight-details-popup .close-popup {
    position: absolute !important;
    top: 50% !important;
    right: 20px !important;
    z-index: 2;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 32px !important;
    height: 32px !important;
    padding: 0 !important;
    color: #334155 !important;
    background: #f8fafc !important;
    border: 1px solid #dbe4ee !important;
    border-radius: 10px !important;
    transform: translateY(-50%);
    font-size: 22px;
    font-weight: 400;
    line-height: 1;
    cursor: pointer;
    transition: color .18s ease, background-color .18s ease, border-color .18s ease;
}
.flight-details-popup .close-popup:hover {
    color: #0f172a !important;
    background: #e2e8f0 !important;
    border-color: #cbd5e1 !important;
}
.flight-details-popup .popup-body {
    flex: 1 1 auto;
    min-height: 0;
    padding: 24px !important;
    overflow: auto;
    background:
        radial-gradient(circle at 100% 0, rgba(251, 191, 36, .09), transparent 32%),
        #f5f7fb;
}
.flight-details-popup .price-actions { margin-top: 16px; }

/* Itinerary information is presented as a calm, structured travel sheet. */
#flightDetailsPopup .popup-body > .mb-6 {
    position: relative;
    min-height: 122px;
    padding: 22px 24px !important;
    overflow: hidden;
    background: linear-gradient(135deg, #ffffff, #f8fafc) !important;
    border: 1px solid #dfe7f0 !important;
    border-radius: 16px !important;
    box-shadow: 0 8px 20px rgba(15, 23, 42, .045) !important;
}
#flightDetailsPopup .popup-body > .mb-6::before {
    position: absolute;
    top: 18px;
    bottom: 18px;
    left: 0;
    width: 3px;
    content: '';
    background: var(--app-accent);
    border-radius: 0 3px 3px 0;
}
#flightDetailsPopup .popup-body .leg-details > h4 {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 26px 0 12px;
    color: #334155;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .10em;
    text-transform: uppercase;
}
#flightDetailsPopup .popup-body .leg-details > h4::after {
    height: 1px;
    flex: 1;
    content: '';
    background: #e2e8f0;
}
#flightDetailsPopup .popup-body .leg-details > .bg-white {
    border-color: #dfe7f0 !important;
    border-radius: 16px !important;
    box-shadow: 0 8px 18px rgba(15, 23, 42, .045) !important;
}
#flightDetailsPopup .popup-body .leg-details > .bg-white > .bg-gray-50 {
    min-height: 64px;
    padding: 14px 18px !important;
    background: #fcfdff !important;
    border-bottom-color: #e8edf3 !important;
}
#flightDetailsPopup .popup-body .layover-info {
    margin: -2px 0 14px;
    padding: 10px 14px;
    color: #64748b;
    font-size: 12px;
    background: #f8fafc;
    border: 1px dashed #cbd5e1;
    border-radius: 10px;
}

@keyframes flight-details-enter {
    from { opacity: 0; transform: translateY(10px) scale(.985); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@media (max-width: 767px) {
    #quote .navbar .container { width: 100%; padding: 0 16px; }
    #quote .navbar-header .navbar-brand { padding-left: 0 !important; }
    #quote .navbar-toggle { margin-top: 13px !important; margin-right: 0 !important; }
    #quote .navbar-collapse {
        margin: 0 -16px;
        padding: 8px 16px 16px;
        background: #ffffff;
        border-top: 1px solid var(--app-border);
    }
    #quote .navbar-default .navbar-nav > li > a { line-height: 1.35; padding: 12px 4px; }
    #quote .navbar-default .navbar-nav > li.nav-cta > a { justify-content: center; margin: 8px 0 0; }
    .flight-details-popup { align-items: flex-end !important; padding: 0 !important; }
    .flight-details-popup .popup-content { width: 100% !important; max-height: 88vh !important; border-radius: 16px 16px 0 0 !important; }
    .flight-details-popup .flight-details-content { border-radius: 16px 16px 0 0 !important; }
    .flight-details-popup .popup-body { padding: 16px !important; }
}

@media (prefers-reduced-motion: reduce) {
    .flight-details-popup *, .flight-details-popup *::before, .flight-details-popup *::after {
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
    }
}