/* ============================================================
   GCC Flight Tracker — Dark Aviation Command Center
   ============================================================ */

:root {
    --bg:          #0c1220;
    --surface:     #131d2e;
    --surface-alt: #182438;
    --border:      #1e3050;
    --border-focus:#38bdf8;
    --text:        #e8edf5;
    --text-2:      #94a3b8;
    --text-3:      #64748b;
    --accent:      #38bdf8;
    --accent-dark: #0ea5e9;
    --accent-bg:   rgba(56,189,248,0.08);
    --danger:      #f87171;
    --danger-bg:   rgba(248,113,113,0.1);
    --warning:     #fbbf24;
    --warning-bg:  rgba(251,191,36,0.1);
    --success:     #34d399;
    --success-bg:  rgba(52,211,153,0.1);
    --radius:      10px;
    --radius-sm:   6px;
    --shadow-sm:   0 1px 3px rgba(0,0,0,0.3);
    --shadow:      0 2px 6px rgba(0,0,0,0.35), 0 1px 3px rgba(0,0,0,0.2);
    --shadow-md:   0 4px 14px rgba(0,0,0,0.4), 0 2px 4px rgba(0,0,0,0.2);
    --shadow-lg:   0 8px 28px rgba(0,0,0,0.45), 0 4px 8px rgba(0,0,0,0.2);
    --transition:  180ms ease;
    --font-sans:   'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-mono:   'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', monospace;
    --glow-accent: 0 0 20px rgba(56,189,248,0.15);
    --glow-danger: 0 0 20px rgba(248,113,113,0.15);
    --glow-success:0 0 20px rgba(52,211,153,0.15);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
}

/* ---- Top bar ---- */

.topbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 2px 12px rgba(0,0,0,0.4);
    backdrop-filter: blur(12px);
    background: rgba(19,29,46,0.95);
}

.topbar-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.brand-link {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    color: inherit;
}

.brand-icon {
    width: 30px;
    height: 30px;
    color: var(--accent);
    flex-shrink: 0;
}

.brand-title {
    font-weight: 800;
    font-size: 1.1rem;
    letter-spacing: -0.03em;
    color: var(--text);
}

.brand-region {
    font-size: 0.6rem;
    font-weight: 700;
    background: linear-gradient(135deg, #f87171, #ef4444);
    color: white;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    margin-left: 0.4rem;
    vertical-align: middle;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    box-shadow: 0 0 8px rgba(248,113,113,0.3);
    animation: urgentPulse 3s ease-in-out infinite;
}

@keyframes urgentPulse {
    0%, 100% { box-shadow: 0 0 8px rgba(248,113,113,0.3); }
    50% { box-shadow: 0 0 16px rgba(248,113,113,0.5); }
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Pills */

.pill {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.25rem 0.6rem;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.pill-live {
    background: rgba(52,211,153,0.15);
    color: var(--success);
    border: 1px solid rgba(52,211,153,0.2);
}

.pill-offline {
    background: rgba(248,113,113,0.15);
    color: var(--danger);
    border: 1px solid rgba(248,113,113,0.2);
}

.pill-muted {
    background: var(--surface-alt);
    color: var(--text-2);
    border: 1px solid var(--border);
}

.live-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 6px var(--success);
    animation: pulse 2s ease-in-out infinite;
}

.pill-offline .live-dot {
    background: var(--danger);
    box-shadow: 0 0 6px var(--danger);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hidden { display: none !important; }

/* ---- Alert strip ---- */

.alert-strip {
    background: linear-gradient(to right, rgba(251,191,36,0.05), rgba(251,191,36,0.1), rgba(251,191,36,0.05));
    border-bottom: 1px solid rgba(251,191,36,0.15);
    color: var(--warning);
    padding: 0.5rem 1rem;
    font-size: 0.78rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.45rem;
    justify-content: center;
    text-align: center;
}

.alert-strip svg {
    flex-shrink: 0;
    color: var(--warning);
}

/* ---- Operational status banners ---- */

.ops-banner {
    padding: 0.55rem 1rem;
    font-size: 0.8rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    text-align: center;
}

.ops-banner .dep-chip {
    font-size: 0.72rem;
}

.ops-banner-open {
    background: linear-gradient(to right, rgba(52,211,153,0.04), rgba(52,211,153,0.08), rgba(52,211,153,0.04));
    border-bottom: 1px solid rgba(52,211,153,0.15);
    color: var(--success);
}

.ops-banner-open svg {
    flex-shrink: 0;
    color: var(--success);
}

.ops-banner-closed {
    background: linear-gradient(to right, rgba(248,113,113,0.04), rgba(248,113,113,0.08), rgba(248,113,113,0.04));
    border-bottom: 1px solid rgba(248,113,113,0.15);
    color: var(--danger);
}

/* ---- Main ---- */

main {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1.25rem 1rem;
}

/* ---- Search panel ---- */

.search-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-bottom: 1rem;
    background: linear-gradient(180deg, var(--surface), rgba(19,29,46,0.95));
}

.search-tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    background: var(--surface-alt);
}

.tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.75rem 0.5rem;
    background: none;
    border: none;
    border-bottom: 2.5px solid transparent;
    font-family: var(--font-sans);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-3);
    cursor: pointer;
    transition: all var(--transition);
    border-radius: 0;
}

.tab:hover {
    color: var(--text-2);
    background: rgba(255,255,255,0.03);
}

.tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
    background: var(--surface);
    text-shadow: 0 0 10px rgba(56,189,248,0.3);
}

.tab svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.search-body {
    padding: 1.15rem;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
}

.scan-desc {
    color: var(--text-2);
    font-size: 0.85rem;
}

.input-field {
    width: 100%;
    padding: 0.7rem 0.85rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--text);
    background: var(--surface);
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
    appearance: none;
    -webkit-appearance: none;
}

.input-field:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(56,189,248,0.15), var(--glow-accent);
}

.input-field::placeholder {
    color: var(--text-3);
}

/* Buttons */

.btn-primary,
.btn-danger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    width: 100%;
    padding: 0.72rem 1.25rem;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    color: white;
    letter-spacing: -0.01em;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    box-shadow: 0 2px 8px rgba(56,189,248,0.25);
}

.btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, #0ea5e9, #0284c7);
    box-shadow: 0 4px 16px rgba(56,189,248,0.35);
    transform: translateY(-1px);
}

.btn-danger {
    background: linear-gradient(135deg, #f87171, #ef4444);
    box-shadow: 0 2px 8px rgba(248,113,113,0.25);
}

.btn-danger:hover:not(:disabled) {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    box-shadow: 0 4px 16px rgba(248,113,113,0.35);
    transform: translateY(-1px);
}

.btn-primary:disabled,
.btn-danger:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-primary svg,
.btn-danger svg {
    width: 16px;
    height: 16px;
}

.spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255,255,255,0.2);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ---- Suggestion box ---- */

.suggestion-box {
    margin-bottom: 0.75rem;
}

.suggestion-inner {
    display: flex;
    gap: 0.5rem;
}

.suggestion-inner .input-field {
    flex: 1;
    font-size: 0.82rem;
    padding: 0.55rem 0.75rem;
}

.btn-suggestion {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.55rem 1rem;
    background: var(--surface);
    color: var(--text-2);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn-suggestion:hover {
    background: var(--accent);
    color: #0c1220;
    border-color: var(--accent);
    box-shadow: 0 2px 8px rgba(56,189,248,0.25);
}

.suggestion-feedback {
    font-size: 0.78rem;
    margin: 0.4rem 0 0;
    padding: 0;
}

.suggestion-feedback.success {
    color: var(--success);
}

.suggestion-feedback.error {
    color: var(--danger);
}

/* ---- Filter bar ---- */

.filter-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.65rem 0;
    margin-bottom: 0.5rem;
    flex-wrap: wrap;
}

.status-pills {
    display: flex;
    gap: 0.35rem;
    flex-wrap: wrap;
}

.status-pill {
    padding: 0.3rem 0.75rem;
    border: 1.5px solid var(--border);
    border-radius: 20px;
    font-family: var(--font-sans);
    font-size: 0.78rem;
    font-weight: 600;
    background: var(--surface);
    color: var(--text-3);
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.status-pill:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-bg);
}

.status-pill.active {
    background: rgba(56,189,248,0.12);
    border-color: var(--accent);
    color: var(--accent);
}

.status-pill.active[data-status="delayed"] {
    background: rgba(251,191,36,0.12);
    border-color: var(--warning);
    color: var(--warning);
}

/* departed status badge kept for any edge cases */
.status-pill.active[data-status="departed"] {
    background: rgba(139,92,246,0.12);
    border-color: #a78bfa;
    color: #a78bfa;
}

.filter-meta {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.filter-select {
    padding: 0.35rem 0.55rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.8rem;
    color: var(--text-2);
    background: var(--surface);
    cursor: pointer;
    outline: none;
    transition: border-color var(--transition);
}

.filter-select:focus {
    border-color: var(--accent);
}

.meta-text {
    font-size: 0.75rem;
    color: var(--text-3);
}

/* ---- Status row ---- */

.status-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.55rem 0;
    margin-bottom: 0.25rem;
    font-size: 0.82rem;
}

.status-row.hidden { display: none; }

.status-left {
    display: flex;
    gap: 0.6rem;
    align-items: center;
}

#status-text {
    font-weight: 600;
    color: var(--text-2);
}

.flight-count {
    font-weight: 700;
    color: var(--accent);
}

.status-right {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

/* ---- Error banner ---- */

.error-banner {
    background: rgba(248,113,113,0.1);
    border: 1.5px solid rgba(248,113,113,0.2);
    color: var(--danger);
    padding: 0.65rem 1rem;
    border-radius: var(--radius-sm);
    margin-bottom: 0.75rem;
    font-weight: 600;
    font-size: 0.85rem;
}

.error-banner.hidden { display: none; }

/* ---- Airport cards ---- */

.airport-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 1.25rem;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: box-shadow var(--transition);
}

.airport-card:hover {
    box-shadow: var(--shadow-md), var(--glow-accent);
    border-color: rgba(56,189,248,0.2);
}

.airport-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.85rem 1.1rem;
    border-bottom: 1px solid var(--border);
    background: var(--surface-alt);
}

.airport-card-title {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    flex-wrap: wrap;
}

.airport-iata {
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text);
    font-family: var(--font-mono);
}

.airport-detail {
    font-size: 0.82rem;
    color: var(--text-2);
    font-weight: 450;
}

.airport-header-badges {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.airport-flight-count {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--accent);
    background: var(--accent-bg);
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    white-space: nowrap;
}

.airport-departed-count {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.departed-active {
    color: var(--success);
    background: rgba(52,211,153,0.12);
    border: 1px solid rgba(52,211,153,0.2);
}

.departed-none {
    color: var(--warning);
    background: rgba(251,191,36,0.12);
    border: 1px solid rgba(251,191,36,0.2);
}

/* ---- Departed summary banner ---- */

.departed-summary {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.65rem 1rem;
    background: linear-gradient(to right, rgba(52,211,153,0.03), rgba(52,211,153,0.08), rgba(52,211,153,0.03));
    border: 1px solid rgba(52,211,153,0.12);
    border-radius: var(--radius-sm);
    margin-bottom: 0.75rem;
}

.dep-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.78rem;
    font-weight: 500;
    padding: 0.25rem 0.7rem;
    border-radius: 20px;
    white-space: nowrap;
    margin: 0.15rem 0.3rem;
}

.dep-label {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-2);
    margin-right: 0.25rem;
    white-space: nowrap;
}

.dep-label svg {
    color: var(--accent);
}

.dep-chip strong {
    font-weight: 700;
    letter-spacing: 0.02em;
}

.dep-chip-active {
    color: var(--success);
    background: rgba(52,211,153,0.12);
    border: 1px solid rgba(52,211,153,0.2);
}

.dep-chip-zero {
    color: var(--warning);
    background: rgba(251,191,36,0.1);
    border: 1px solid rgba(251,191,36,0.15);
}

/* ---- Table ---- */

.table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 720px;
}

thead th {
    text-align: left;
    padding: 0.55rem 0.7rem;
    font-family: var(--font-sans);
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--accent);
    background: rgba(56,189,248,0.04);
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
    vertical-align: top;
}

.th-inner {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.col-filter {
    width: 100%;
    padding: 0.28rem 0.45rem;
    border: 1.5px solid var(--border);
    border-radius: 5px;
    font-family: var(--font-sans);
    font-size: 0.72rem;
    color: var(--text);
    background: var(--surface);
    outline: none;
    transition: border-color var(--transition);
}

.col-filter:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(56,189,248,0.15);
}

.col-filter::placeholder {
    color: var(--text-3);
}

tbody tr {
    border-bottom: 1px solid var(--border);
    transition: background var(--transition);
}

tbody tr:hover {
    background: rgba(56,189,248,0.04);
}

tbody tr:last-child {
    border-bottom: none;
}

tbody td {
    padding: 0.65rem 0.7rem;
    font-size: 0.84rem;
    vertical-align: middle;
}

.cell-flight-num {
    display: block;
    font-weight: 700;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--text);
    letter-spacing: -0.01em;
}

.cell-airline {
    display: block;
    font-size: 0.72rem;
    color: var(--text-2);
    margin-top: 0.15rem;
    font-weight: 450;
}

.cell-dest-code {
    display: block;
    font-weight: 700;
    font-size: 0.88rem;
    color: var(--text);
}

.cell-dest-name {
    display: block;
    font-size: 0.72rem;
    color: var(--text-2);
    margin-top: 0.05rem;
    font-weight: 450;
}

.cell-time {
    font-size: 0.82rem;
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
    font-weight: 500;
}

.cell-aircraft {
    font-size: 0.8rem;
    color: var(--text-2);
    white-space: nowrap;
    font-weight: 450;
}

/* ---- Status badges ---- */

.status-badge {
    display: inline-block;
    padding: 0.18rem 0.55rem;
    border-radius: 5px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.01em;
}

.status-scheduled {
    background: rgba(56,189,248,0.12);
    color: var(--accent);
}

.status-estimated {
    background: rgba(52,211,153,0.12);
    color: var(--success);
}

.status-delayed {
    background: rgba(251,191,36,0.12);
    color: var(--warning);
}

.status-departed {
    background: rgba(139,92,246,0.12);
    color: #a78bfa;
}

.status-unknown {
    background: rgba(100,116,139,0.12);
    color: var(--text-3);
}

.status-cancelled {
    background: rgba(248,113,113,0.12);
    color: var(--danger);
    text-decoration: line-through;
}

.flight-cancelled {
    opacity: 0.5;
    background: rgba(248,113,113,0.03);
}

.flight-cancelled:hover {
    background: rgba(248,113,113,0.06);
}

.flight-delayed {
    background: rgba(251,191,36,0.04);
}

.flight-delayed:hover {
    background: rgba(251,191,36,0.08);
}

.verified-tag {
    display: inline-block;
    font-size: 0.6rem;
    color: var(--danger);
    font-weight: 700;
    margin-left: 0.3rem;
}

/* ---- Availability badges ---- */

.cell-avail {
    white-space: nowrap;
}

.avail-badge {
    display: inline-block;
    padding: 0.18rem 0.5rem;
    border-radius: 5px;
    font-size: 0.72rem;
    font-weight: 700;
}

.avail-yes {
    background: var(--success-bg);
    color: var(--success);
}

.avail-verify {
    background: rgba(251,191,36,0.12);
    color: var(--warning);
    text-decoration: none;
    cursor: pointer;
    transition: background var(--transition);
    border: 1px solid rgba(251,191,36,0.15);
}

.avail-verify:hover {
    background: rgba(251,191,36,0.2);
}

.avail-checking {
    background: rgba(56,189,248,0.12);
    color: var(--accent);
    animation: pulse 1.5s infinite;
}

.avail-price {
    display: block;
    font-size: 0.65rem;
    color: var(--success);
    font-weight: 700;
    margin-top: 0.1rem;
}

/* ---- Action buttons ---- */

.cell-actions {
    white-space: nowrap;
}

.btn-action {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 5px;
    font-family: var(--font-sans);
    font-size: 0.68rem;
    font-weight: 700;
    text-decoration: none;
    transition: all var(--transition);
    color: white;
    margin-right: 0.2rem;
    margin-bottom: 0.15rem;
    letter-spacing: 0.01em;
}

.btn-action:hover {
    transform: translateY(-0.5px);
}

.btn-kayak   { background: linear-gradient(135deg, #ff6d00, #e65100); }
.btn-kayak:hover   { background: linear-gradient(135deg, #ff8533, #ff6d00); box-shadow: 0 2px 8px rgba(255,109,0,0.3); }

.btn-sky     { background: linear-gradient(135deg, #0ea5e9, #0770e3); }
.btn-sky:hover     { background: linear-gradient(135deg, #38bdf8, #0ea5e9); box-shadow: 0 2px 8px rgba(14,165,233,0.3); }

.btn-airline { background: linear-gradient(135deg, #64748b, #475569); }
.btn-airline:hover { background: linear-gradient(135deg, #94a3b8, #64748b); box-shadow: 0 2px 8px rgba(100,116,139,0.3); }

/* ---- Pagination ---- */

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 1rem;
    border-top: 1px solid var(--border);
    background: var(--surface-alt);
}

.page-info {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-2);
    font-variant-numeric: tabular-nums;
}

.btn-page {
    padding: 0.38rem 0.85rem;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-page:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.btn-page:hover:not(:disabled) {
    background: var(--accent-dark);
    transform: translateY(-0.5px);
}

/* ---- No flights ---- */

.no-flights {
    padding: 3.5rem 1.5rem;
    text-align: center;
    color: var(--text-2);
    font-size: 0.9rem;
    font-weight: 450;
}

.no-flights-hint {
    color: var(--text-3);
    font-size: 0.82rem;
    margin-top: 0.4rem;
}

/* ---- Footer ---- */

footer {
    text-align: center;
    padding: 1.75rem 1rem;
    color: var(--text-3);
    font-size: 0.75rem;
    border-top: 1px solid var(--border);
    margin-top: 2.5rem;
    font-weight: 450;
    background: rgba(12,18,32,0.6);
}

footer p + p {
    margin-top: 0.2rem;
}

/* ============================================================
   Responsive — Tablet
   ============================================================ */

@media (min-width: 640px) {
    .topbar-inner {
        padding: 0.75rem 1.5rem;
    }

    main {
        padding: 1.5rem;
    }

    .tab-content.active {
        flex-direction: row;
        align-items: stretch;
    }

    .input-field {
        flex: 1;
    }

    .btn-primary,
    .btn-danger {
        width: auto;
        flex-shrink: 0;
    }
}

/* ============================================================
   Responsive — Desktop
   ============================================================ */

@media (min-width: 1024px) {
    .brand-title {
        font-size: 1.2rem;
    }

    .search-body {
        padding: 1.25rem;
    }

    .airport-card-header {
        padding: 0.9rem 1.25rem;
    }

    thead th {
        padding: 0.6rem 0.8rem;
    }

    tbody td {
        padding: 0.7rem 0.8rem;
    }
}

/* ============================================================
   Responsive — Small phones
   ============================================================ */

@media (max-width: 480px) {
    .topbar-inner {
        padding: 0.55rem 0.75rem;
    }

    .brand-title {
        font-size: 0.95rem;
    }

    .brand-icon {
        width: 24px;
        height: 24px;
    }

    .alert-strip {
        font-size: 0.72rem;
        padding: 0.4rem 0.75rem;
    }

    .ops-banner {
        font-size: 0.72rem;
        padding: 0.45rem 0.75rem;
    }

    .departed-summary {
        gap: 0.35rem;
        padding: 0.45rem 0.5rem;
    }

    .dep-chip {
        font-size: 0.7rem;
        padding: 0.2rem 0.5rem;
    }

    main {
        padding: 0.65rem 0.5rem;
    }

    .search-body {
        padding: 0.85rem;
    }

    .tab {
        padding: 0.6rem 0.25rem;
        font-size: 0.74rem;
        gap: 0.3rem;
    }

    .tab svg {
        width: 14px;
        height: 14px;
    }

    .status-pills {
        gap: 0.25rem;
    }

    .status-pill {
        padding: 0.25rem 0.6rem;
        font-size: 0.72rem;
    }

    .filter-bar {
        flex-direction: column;
        align-items: flex-start;
    }

    .status-row {
        flex-direction: column;
        gap: 0.25rem;
        align-items: flex-start;
    }

    .airport-card-header {
        flex-direction: column;
        gap: 0.4rem;
        align-items: flex-start;
        padding: 0.7rem 0.8rem;
    }

    .airport-iata {
        font-size: 1rem;
    }

    .airport-detail {
        font-size: 0.75rem;
    }

    .btn-action {
        padding: 0.22rem 0.4rem;
        font-size: 0.64rem;
    }
}