/**
 * RETRIP AIR — Premium Airline Series Marketplace Stylesheet
 * Palette: Navy (#0A2540), Royal Blue (#1D4ED8), Sky (#0284C7), Slate (#334155, #64748B), Soft Gray (#F8FAFC)
 */

:root {
    --retrip-navy: #0A2540;
    --retrip-navy-dark: #06182c;
    --retrip-primary: #1D4ED8;
    --retrip-primary-hover: #1E40AF;
    --retrip-sky: #0284C7;
    --retrip-sky-light: #E0F2FE;
    --retrip-slate-dark: #1E293B;
    --retrip-slate: #334155;
    --retrip-slate-muted: #64748B;
    --retrip-bg: #F8FAFC;
    --retrip-card-bg: #FFFFFF;
    --retrip-border: #E2E8F0;
    --retrip-success: #059669;
    --retrip-warning: #D97706;
    --retrip-danger: #DC2626;
    --retrip-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --sidebar-width: 260px;
}

body {
    font-family: var(--retrip-font);
    background-color: var(--retrip-bg);
    color: var(--retrip-slate-dark);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header & Top Navigation */
.retrip-navbar {
    background-color: var(--retrip-navy);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.retrip-brand {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: #FFFFFF !important;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.retrip-brand span.badge-air {
    background: linear-gradient(135deg, #0284C7, #38BDF8);
    color: #FFFFFF;
    font-size: 0.7rem;
    padding: 3px 7px;
    border-radius: 4px;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.retrip-top-search {
    max-width: 420px;
    width: 100%;
}

.retrip-top-search .form-control {
    background-color: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #FFFFFF;
    font-size: 0.88rem;
    border-radius: 20px;
    padding-left: 36px;
}

.retrip-top-search .form-control::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.retrip-top-search .form-control:focus {
    background-color: #FFFFFF;
    color: var(--retrip-slate-dark);
    box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.25);
}

.search-icon-wrapper {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.6);
    pointer-events: none;
}

/* Main Layout & Sidebar */
.app-wrapper {
    display: flex;
    flex: 1;
}

.app-sidebar {
    width: var(--sidebar-width);
    background-color: #FFFFFF;
    border-right: 1px solid var(--retrip-border);
    padding: 20px 0;
    flex-shrink: 0;
}

.app-content {
    flex: 1;
    padding: 28px 32px;
    background-color: var(--retrip-bg);
    overflow-x: auto;
}

/* Sidebar Navigation Items */
.sidebar-heading {
    font-size: 0.72rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--retrip-slate-muted);
    letter-spacing: 0.8px;
    padding: 10px 24px 6px;
}

.sidebar-nav {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-nav-item {
    margin-bottom: 2px;
}

.sidebar-nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 24px;
    color: var(--retrip-slate);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    transition: all 0.15s ease-in-out;
}

.sidebar-nav-link i {
    font-size: 1.15rem;
    color: var(--retrip-slate-muted);
    transition: color 0.15s ease-in-out;
}

.sidebar-nav-link:hover {
    background-color: #F1F5F9;
    color: var(--retrip-primary);
}

.sidebar-nav-link:hover i {
    color: var(--retrip-primary);
}

.sidebar-nav-link.active {
    background-color: #EFF6FF;
    color: var(--retrip-primary);
    font-weight: 600;
    border-right: 3px solid var(--retrip-primary);
}

.sidebar-nav-link.active i {
    color: var(--retrip-primary);
}

/* Operational Banner */
.pilot-banner {
    background: linear-gradient(90deg, #1E293B, #0F172A);
    color: #F8FAFC;
    padding: 8px 16px;
    font-size: 0.82rem;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.pilot-banner strong {
    color: #38BDF8;
}

/* Cards & Widgets */
.retrip-card {
    background-color: var(--retrip-card-bg);
    border: 1px solid var(--retrip-border);
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    padding: 24px;
    margin-bottom: 24px;
}

.retrip-stat-card {
    background-color: var(--retrip-card-bg);
    border: 1px solid var(--retrip-border);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.retrip-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.06);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
}

.stat-icon.primary { background-color: #EFF6FF; color: var(--retrip-primary); }
.stat-icon.success { background-color: #ECFDF5; color: var(--retrip-success); }
.stat-icon.warning { background-color: #FFFBEB; color: var(--retrip-warning); }
.stat-icon.sky     { background-color: #F0F9FF; color: var(--retrip-sky); }

.stat-value {
    font-size: 1.65rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--retrip-slate-dark);
}

.stat-label {
    font-size: 0.84rem;
    color: var(--retrip-slate-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Flight Item Cards */
.flight-card {
    background: #FFFFFF;
    border: 1px solid var(--retrip-border);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 16px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
    transition: border-color 0.15s ease;
}

.flight-card:hover {
    border-color: #93C5FD;
}

.flight-route-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.route-city {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--retrip-navy);
}

.route-code {
    font-size: 0.95rem;
    color: var(--retrip-slate-muted);
    font-weight: 500;
}

.flight-path {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--retrip-sky);
    font-size: 1.1rem;
}

.flight-meta-pill {
    background-color: #F1F5F9;
    border-radius: 6px;
    padding: 4px 10px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--retrip-slate);
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.fare-display {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--retrip-primary);
}

/* Status Badges */
.badge-status {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-status.held { background-color: #FEF3C7; color: #92400E; }
.badge-status.confirmed { background-color: #D1FAE5; color: #065F46; }
.badge-status.expired { background-color: #F3F4F6; color: #4B5563; }
.badge-status.cancelled { background-color: #FEE2E2; color: #991B1B; }
.badge-status.open { background-color: #DBEAFE; color: #1E40AF; }

/* Data Tables */
.retrip-table {
    width: 100%;
    margin-bottom: 0;
}

.retrip-table th {
    background-color: #F8FAFC;
    color: var(--retrip-slate-muted);
    font-size: 0.78rem;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.5px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--retrip-border);
}

.retrip-table td {
    padding: 14px 16px;
    vertical-align: middle;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--retrip-border);
}

.retrip-table tr:hover td {
    background-color: #F8FAFC;
}

/* Hold Countdown Badge */
.countdown-timer {
    font-family: monospace;
    font-weight: 700;
    font-size: 0.88rem;
    background-color: #FFFBEB;
    color: #B45309;
    padding: 4px 8px;
    border-radius: 6px;
    border: 1px solid #FDE68A;
    display: inline-block;
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: 48px 24px;
}

.empty-state-icon {
    font-size: 3rem;
    color: #CBD5E1;
    margin-bottom: 16px;
}

.empty-state-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--retrip-slate-dark);
    margin-bottom: 6px;
}

.empty-state-text {
    font-size: 0.88rem;
    color: var(--retrip-slate-muted);
    max-width: 400px;
    margin: 0 auto 20px;
}

/* Footer */
.retrip-footer {
    background-color: #FFFFFF;
    border-top: 1px solid var(--retrip-border);
    padding: 16px 24px;
    font-size: 0.84rem;
    color: var(--retrip-slate-muted);
    text-align: center;
    margin-top: auto;
}

/* Responsive adjustments */
@media (max-width: 991.98px) {
    .app-wrapper {
        flex-direction: column;
    }
    .app-sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--retrip-border);
        padding: 10px 0;
    }
    .sidebar-nav {
        display: flex;
        flex-wrap: wrap;
        padding: 0 10px;
    }
    .sidebar-nav-link {
        padding: 8px 12px;
        font-size: 0.85rem;
    }
    .app-content {
        padding: 20px 16px;
    }
}