/* ------------------------------------------------------------------ */
/* Base                                                                 */
/* ------------------------------------------------------------------ */
:root {
    --primary: #0b5fff;
    --primary-dark: #0847c4;
    --accent: #ff8a00;
    --text: #1a1f2b;
    --muted: #6b7280;
    --bg: #f5f7fb;
    --card-bg: #ffffff;
    --border: #e3e7ee;
    --radius: 10px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 16px;
}

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

/* ------------------------------------------------------------------ */
/* Header / Footer                                                      */
/* ------------------------------------------------------------------ */
.site-header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
}
.logo {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text);
}
.logo span { color: var(--primary); }
.main-nav a {
    color: var(--muted);
    font-weight: 600;
    font-size: 0.9rem;
}

.site-footer {
    text-align: center;
    color: var(--muted);
    padding: 24px 0;
    font-size: 0.85rem;
}

/* ------------------------------------------------------------------ */
/* Hero / Search form                                                  */
/* ------------------------------------------------------------------ */
.hero {
    padding: 32px 0 48px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
}
.hero h1 { margin: 0 0 4px; font-size: 1.6rem; }
.hero-sub { margin: 0 0 20px; opacity: 0.9; }

.search-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px;
    color: var(--text);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.trip-type {
    display: flex;
    gap: 20px;
    margin-bottom: 16px;
    font-weight: 600;
    font-size: 0.9rem;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.field { display: flex; flex-direction: column; gap: 4px; }
.field label { font-size: 0.78rem; font-weight: 600; color: var(--muted); }
.field input, .field select {
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.95rem;
    width: 100%;
}
.field input:focus, .field select:focus {
    outline: none;
    border-color: var(--primary);
}

.btn {
    display: inline-block;
    border: none;
    border-radius: 8px;
    padding: 12px 20px;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    text-align: center;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #e67c00; }
.btn-secondary { background: var(--border); color: var(--text); }
.btn-block { width: 100%; margin-top: 16px; }
.btn-sm { padding: 8px 14px; font-size: 0.85rem; }

/* ------------------------------------------------------------------ */
/* Results page                                                        */
/* ------------------------------------------------------------------ */
.results-page { padding: 24px 0 48px; }

.search-summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 18px;
    margin-bottom: 16px;
}
.search-summary span { display: block; color: var(--muted); font-size: 0.85rem; }

.results-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.filters {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
}
.filters h3 { margin-top: 0; font-size: 1rem; }
.filter-group { margin-bottom: 16px; }
.filter-label { font-weight: 600; font-size: 0.85rem; margin: 0 0 6px; }
.filter-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    margin-bottom: 6px;
}

.results-list { display: flex; flex-direction: column; gap: 12px; }

.loading { text-align: center; color: var(--muted); padding: 40px 0; }

.flight-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px;
    justify-content: space-between;
}
.flight-card .airline-info { display: flex; align-items: center; gap: 10px; min-width: 140px; }
.flight-card .airline-info img { width: 32px; height: 32px; object-fit: contain; }
.flight-card .airline-name { font-weight: 700; font-size: 0.9rem; }
.flight-card .flight-number { color: var(--muted); font-size: 0.78rem; }

.flight-card .route-info { flex: 1; min-width: 220px; }
.flight-card .times { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.flight-card .arrow { color: var(--muted); font-weight: 400; font-size: 0.85rem; flex: 1; text-align: center; }
.flight-card .meta { color: var(--muted); font-size: 0.8rem; margin-top: 4px; }

.flight-card .price-block { text-align: right; min-width: 130px; }
.flight-card .price { font-size: 1.25rem; font-weight: 800; color: var(--primary-dark); }
.flight-card .price-sub { color: var(--muted); font-size: 0.78rem; }

.badge {
    display: inline-block;
    background: #eef4ff;
    color: var(--primary-dark);
    font-size: 0.72rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 20px;
    margin-top: 4px;
}

/* ------------------------------------------------------------------ */
/* Details / Passenger / Confirmation pages                            */
/* ------------------------------------------------------------------ */
.details-page, .passenger-page, .confirmation-page { padding: 24px 0 48px; }

.flight-detail-card, .flight-recap {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    margin-bottom: 16px;
}
.flight-recap { display: flex; flex-direction: column; gap: 4px; }
.flight-detail-row { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
.flight-detail-row:last-child { border-bottom: none; }

.passenger-form { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }

.confirmation-card { background: var(--card-bg); border-radius: var(--radius); padding: 30px; text-align: center; }
.booking-ref { font-size: 1.4rem; font-weight: 800; color: var(--primary); letter-spacing: 1px; }
.confirmation-details { text-align: left; max-width: 400px; margin: 20px auto; font-size: 0.9rem; }
.confirmation-details p { border-bottom: 1px solid var(--border); padding: 6px 0; margin: 0; }

/* ------------------------------------------------------------------ */
/* Responsive                                                          */
/* ------------------------------------------------------------------ */
@media (min-width: 720px) {
    .form-grid { grid-template-columns: repeat(4, 1fr); }
    .results-layout { grid-template-columns: 260px 1fr; }
}