:root {
    --ops-bg: #0a0e14;
    --ops-panel: #10151d;
    --ops-panel-deep: #040c18;
    --ops-border: #263241;
    --ops-border-strong: #1a3a5c;
    --ops-cyan: #4f9fd6;
    --ops-cyan-soft: #4f9fd622;
    --ops-cyan-mid: #4f9fd644;
    --ops-green: #4caf7d;
    --ops-amber: #c9973f;
    --ops-orange: #d18a4a;
    --ops-red: #d1615c;
    --ops-text: #ccd3db;
    --ops-muted: #4a6f94;
    --ops-muted-2: #6f9fc9;
    --ops-label: #2a5a8a;
    --font-ui: "Inter", system-ui, sans-serif;
    --font-mono: "Space Mono", "Courier New", monospace;
    --radius: 4px;
    --radius-sm: 3px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--font-mono);
    color: var(--ops-text);
    background: var(--ops-bg);
    min-height: 100vh;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

h1, h2, h3, p {
    margin: 0;
}

/* Login — parity with CCO */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: var(--ops-bg);
}

.login-card {
    width: min(400px, 100%);
    background: var(--ops-panel);
    border: 1px solid var(--ops-border);
    border-radius: var(--radius);
    padding: 32px;
}

.login-header {
    text-align: center;
    margin-bottom: 8px;
}

.login-logo {
    width: fit-content;
    margin: 0 auto 24px;
    padding: 8px 14px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--ops-cyan-soft), #4f9fd611);
    border: 1px solid var(--ops-cyan-mid);
    color: var(--ops-cyan);
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 20px;
    letter-spacing: 0.12em;
}

.login-header h1 {
    color: var(--ops-text);
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 0.08em;
    margin-bottom: 8px;
}

.login-header p {
    color: var(--ops-muted);
    font-size: 11px;
    letter-spacing: 0.04em;
    line-height: 1.5;
    margin: 0 0 24px;
}

.login-form {
    display: grid;
    gap: 0;
}

.login-form label,
.filters-form label {
    display: block;
    color: var(--ops-muted);
    font-size: 11px;
    letter-spacing: 0.08em;
    margin-bottom: 6px;
    text-transform: uppercase;
}

.login-form input,
.filters-form input[type="date"],
.date-picker-form input[type="date"],
.filters-form input[type="text"],
.filters-form input[type="number"] {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--ops-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--ops-text);
    background: var(--ops-bg);
    outline: none;
    margin-bottom: 14px;
}

.login-form input:focus,
.filters-form input:focus,
.date-picker-form input:focus {
    border-color: var(--ops-cyan);
    box-shadow: 0 0 0 1px var(--ops-cyan-mid);
}

.login-form input::placeholder {
    color: #9ca3af;
    opacity: 0.7;
}

.login-hint {
    margin-top: 16px;
    text-align: right;
}

.login-hint a {
    color: var(--ops-cyan);
    font-size: 11px;
    letter-spacing: 0.04em;
}

/* App shell */
.app-shell {
    display: grid;
    grid-template-columns: 270px 1fr;
    min-height: 100vh;
    background: var(--ops-bg);
}

.sidebar {
    background: var(--ops-panel);
    color: var(--ops-text);
    padding: 22px 18px;
    display: flex;
    flex-direction: column;
    gap: 22px;
    border-right: 1px solid var(--ops-border);
}

.sidebar-brand,
.sidebar-nav,
.filters-form,
.logout-form {
    display: grid;
    gap: 10px;
}

.sidebar-brand {
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 12px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--ops-border);
}

.brand-icon {
    width: auto;
    height: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--ops-cyan-soft), #4f9fd611);
    border: 1px solid var(--ops-cyan-mid);
    color: var(--ops-cyan);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.12em;
}

.sidebar-brand strong {
    display: block;
    font-size: 12px;
    letter-spacing: 0.08em;
    font-weight: 700;
}

.sidebar-brand small {
    color: var(--ops-muted);
    font-size: 10px;
    letter-spacing: 0.06em;
}

.sidebar-nav h3,
.filters-form h3 {
    margin: 0;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--ops-label);
}

.nav-link {
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    background: transparent;
    border: 1px solid var(--ops-border);
    color: var(--ops-muted-2);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.nav-link.active,
.nav-link:hover {
    background: var(--ops-cyan-soft);
    border-color: var(--ops-cyan-mid);
    color: var(--ops-cyan);
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 11px;
    color: var(--ops-muted);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.checkbox-row input {
    width: 14px;
    height: 14px;
    accent-color: var(--ops-cyan);
}

.filters-form input[type="range"] {
    width: 100%;
    accent-color: var(--ops-cyan);
    margin-bottom: 8px;
}

.main-content {
    padding: 24px 28px 40px;
}

.page-header h1 {
    font-size: 18px;
    letter-spacing: 0.1em;
    font-weight: 700;
    color: var(--ops-text);
    text-transform: uppercase;
}

.page-header p {
    margin-top: 6px;
    color: var(--ops-muted);
    font-size: 11px;
    letter-spacing: 0.06em;
}

.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin: 20px 0;
    padding: 12px 14px;
    background: var(--ops-panel);
    border: 1px solid var(--ops-border);
    border-radius: var(--radius);
    flex-wrap: wrap;
}

.toolbar-actions,
.date-picker-form {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.current-date {
    font-size: 13px;
    padding: 0 8px;
    letter-spacing: 0.06em;
    color: var(--ops-cyan);
    font-weight: 700;
}

.btn {
    border: 1px solid var(--ops-border);
    border-radius: var(--radius-sm);
    padding: 8px 14px;
    cursor: pointer;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
    background: transparent;
    color: var(--ops-muted-2);
}

.btn:hover {
    border-color: var(--ops-cyan-mid);
    color: var(--ops-cyan);
}

.btn-primary {
    background: var(--ops-cyan);
    color: var(--ops-bg);
    border: none;
}

.btn-primary:hover {
    background: #6fb3e0;
    color: var(--ops-bg);
}

.btn-block {
    width: 100%;
    padding: 10px 0;
    margin-top: 4px;
}

.btn-secondary,
.btn-light {
    background: transparent;
    color: var(--ops-muted-2);
    border: 1px solid var(--ops-border-strong);
}

.btn-ghost {
    background: transparent;
    color: var(--ops-cyan);
    border: 1px solid var(--ops-border-strong);
    padding: 7px 12px;
    white-space: nowrap;
}

.btn-danger {
    background: transparent;
    color: var(--ops-red);
    border: 1px solid #d1615c55;
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

.stat-card {
    background: var(--ops-panel);
    border: 1px solid var(--ops-border);
    border-radius: var(--radius);
    padding: 14px 16px;
}

.stat-card-accent {
    border-color: var(--ops-cyan-mid);
    background: linear-gradient(180deg, #0d1a28 0%, var(--ops-panel) 100%);
}

.stat-card-success {
    border-color: #4caf7d55;
    background: linear-gradient(180deg, #04140c 0%, var(--ops-panel) 100%);
}

.stat-card-warning {
    border-color: #d18a4a55;
    background: linear-gradient(180deg, #1a0a00 0%, var(--ops-panel) 100%);
}

.stat-label {
    display: block;
    color: var(--ops-muted);
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 28px;
    line-height: 1;
    letter-spacing: 0.02em;
    color: var(--ops-text);
    font-weight: 700;
}

.stat-card-accent .stat-value { color: var(--ops-cyan); }
.stat-card-success .stat-value { color: var(--ops-green); }
.stat-card-warning .stat-value { color: var(--ops-orange); }

.stat-mini-bar {
    margin-top: 12px;
    height: 4px;
    background: var(--ops-panel-deep);
    border-radius: 2px;
    overflow: hidden;
    border: 1px solid var(--ops-border);
}

.stat-mini-bar-fill {
    height: 100%;
    border-radius: inherit;
    background: var(--ops-cyan);
}

/* Views */
.view-section,
.flight-details {
    background: var(--ops-panel);
    border: 1px solid var(--ops-border);
    border-radius: var(--radius);
    padding: 18px;
}

.flight-details {
    margin-top: 20px;
}

.view-section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}

.view-section-header h2 {
    font-size: 13px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ops-text);
}

.view-section-subtitle {
    margin-top: 4px;
    font-size: 11px;
    color: var(--ops-muted);
    letter-spacing: 0.06em;
}

.legend {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    font-size: 10px;
    color: var(--ops-muted);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.legend-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 2px;
    display: inline-block;
}

.dot.high { background: var(--ops-green); }
.dot.medium { background: var(--ops-amber); }
.dot.low { background: var(--ops-red); }

/* Dual load factor (4 e 6 assentos) */
.lf-dual {
    display: grid;
    gap: 12px;
    width: 100%;
}

.lf-dual-month {
    gap: 8px;
}

/* Load factor widget */
.lf-widget {
    display: grid;
    gap: 8px;
    width: 100%;
}

.lf-widget-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 12px;
}

.lf-widget-label {
    color: var(--ops-muted);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.lf-widget-value {
    font-weight: 700;
    letter-spacing: 0.04em;
    line-height: 1;
    font-family: var(--font-mono);
}

.lf-large .lf-widget-value { font-size: 1.25rem; }
.lf-medium .lf-widget-value { font-size: 1.1rem; }
.lf-compact .lf-widget-value { font-size: 0.95rem; }
.lf-tiny .lf-widget-value { font-size: 0.85rem; }

.load-high .lf-widget-value { color: var(--ops-green); }
.load-medium .lf-widget-value { color: var(--ops-amber); }
.load-low .lf-widget-value { color: var(--ops-red); }

.lf-track {
    position: relative;
    height: var(--lf-track-height);
    background: var(--ops-panel-deep);
    border-radius: 2px;
    border: 1px solid var(--ops-border);
    overflow: hidden;
}

.lf-fill {
    height: 100%;
    border-radius: inherit;
    transition: width 0.4s ease;
}

.lf-seats {
    font-size: 11px;
    color: var(--ops-muted);
    font-weight: 400;
    letter-spacing: 0.04em;
}

.lf-compact .lf-seats,
.lf-tiny .lf-seats {
    font-size: 10px;
}

/* Flight cards - day view */
.flight-list {
    display: grid;
    gap: 12px;
}

.flight-card {
    border: 1px solid var(--ops-border);
    border-radius: var(--radius);
    padding: 16px;
    background: var(--ops-panel-deep);
}

.flight-card-body {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(220px, 300px);
    gap: 20px;
    align-items: center;
}

.flight-card-info {
    display: grid;
    gap: 10px;
    align-content: start;
}

.flight-card-visual {
    padding: 14px 16px;
    border-radius: var(--radius);
    border: 1px solid var(--ops-border);
    background: var(--ops-panel);
}

.flight-card-visual.load-high,
.flight-details-lf.load-high {
    border-color: #4caf7d55;
    background: linear-gradient(90deg, #4caf7d1a, transparent 55%), var(--ops-panel);
}

.flight-card-visual.load-medium,
.flight-details-lf.load-medium {
    border-color: #c9973f55;
    background: linear-gradient(90deg, #c9973f1a, transparent 55%), var(--ops-panel);
}

.flight-card-visual.load-low,
.flight-details-lf.load-low {
    border-color: #d1615c55;
    background: linear-gradient(90deg, #d1615c1a, transparent 55%), var(--ops-panel);
}

.flight-mini.load-high { border-left: 3px solid var(--ops-green); }
.flight-mini.load-medium { border-left: 3px solid var(--ops-amber); }
.flight-mini.load-low { border-left: 3px solid var(--ops-red); }

.month-day.load-high { border-color: #4caf7d66; }
.month-day.load-medium { border-color: #c9973f66; }
.month-day.load-low { border-color: #d1615c66; }

.flight-card-title {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.flight-card-title h3 {
    font-size: 16px;
    letter-spacing: 0.04em;
    color: var(--ops-text);
}

.flight-time {
    color: var(--ops-muted-2);
    font-size: 13px;
    letter-spacing: 0.04em;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 8px;
    border-radius: 2px;
    background: #0a1a3a;
    border: 1px solid #1a3a6c;
    color: var(--ops-cyan);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.badge-shuttle {
    background: #0a1a3a;
    border-color: #1a3a6c;
    color: var(--ops-cyan);
}

.badge-full-cabin {
    background: #1a1400;
    border-color: #574a00;
    color: var(--ops-amber);
}

.badge-mini {
    width: fit-content;
    font-size: 9px;
    padding: 2px 6px;
}

.flight-meta-grid {
    display: grid;
    gap: 6px;
    margin-top: 4px;
    font-size: 11px;
    color: var(--ops-muted);
    letter-spacing: 0.02em;
}

.flight-meta-grid strong {
    color: var(--ops-label);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 10px;
    margin-right: 6px;
}

/* Week view */
.week-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 10px;
}

.week-column {
    background: var(--ops-panel-deep);
    border: 1px solid var(--ops-border);
    border-radius: var(--radius);
    overflow: hidden;
    min-height: 320px;
}

.week-header {
    background: #0a1628;
    border-bottom: 1px solid var(--ops-border-strong);
    color: var(--ops-text);
    padding: 12px 10px;
    text-align: center;
    display: grid;
    gap: 4px;
}

.week-header strong {
    color: var(--ops-cyan);
    font-size: 12px;
    letter-spacing: 0.06em;
}

.week-header small {
    color: var(--ops-muted);
    font-size: 10px;
    letter-spacing: 0.06em;
}

.weekday-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--ops-label);
}

.week-body {
    padding: 10px;
    display: grid;
    gap: 8px;
}

.flight-mini {
    background: var(--ops-panel);
    border: 1px solid var(--ops-border);
    border-radius: var(--radius-sm);
    padding: 10px;
    display: grid;
    gap: 6px;
}

.flight-mini-top {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    align-items: baseline;
}

.flight-mini-top strong {
    font-size: 12px;
    letter-spacing: 0.04em;
}

.flight-mini-time {
    font-size: 11px;
    color: var(--ops-muted);
}

.flight-mini-route,
.flight-mini-meta {
    font-size: 10px;
    color: var(--ops-muted);
}

.flight-mini-meta {
    margin: 0;
    line-height: 1.35;
    overflow-wrap: anywhere;
}

.flight-mini-meta strong {
    color: var(--ops-label);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* Month view */
.month-weekdays {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 8px;
    margin-bottom: 8px;
    padding: 0 2px;
    font-size: 10px;
    font-weight: 700;
    color: var(--ops-label);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.month-weekdays span {
    text-align: center;
}

.month-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 8px;
}

.month-day {
    min-height: 110px;
    padding: 10px;
    border: 1px solid var(--ops-border);
    border-radius: var(--radius-sm);
    background: var(--ops-panel-deep);
    display: grid;
    gap: 8px;
    align-content: start;
}

.month-day-empty {
    background: #0b1018;
    opacity: 0.7;
}

.month-day-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    color: var(--ops-text);
    font-size: 12px;
    font-weight: 700;
}

.month-flight-count {
    font-size: 10px;
    color: var(--ops-muted);
    font-weight: 400;
    letter-spacing: 0.04em;
}

.month-day-empty-label {
    color: var(--ops-label);
    font-size: 1rem;
    text-align: center;
    margin-top: 8px;
}

/* Flight details */
.flight-details-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 18px;
}

.detail-card {
    background: var(--ops-panel-deep);
    border: 1px solid var(--ops-border);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    display: grid;
    gap: 6px;
}

.detail-card-wide {
    grid-column: span 2;
}

.detail-card small {
    color: var(--ops-muted);
}

.detail-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ops-label);
    font-weight: 700;
}

.detail-card strong {
    color: var(--ops-text);
    font-size: 13px;
    letter-spacing: 0.03em;
}

.detail-list {
    margin: 0;
    padding-left: 16px;
    display: grid;
    gap: 4px;
}

.detail-list li {
    font-weight: 700;
    color: var(--ops-text);
    font-size: 12px;
}

.flight-details-lf {
    max-width: 420px;
    margin: 0 auto;
    padding: 18px 20px;
    border-radius: var(--radius);
    background: var(--ops-panel-deep);
    border: 1px solid var(--ops-border);
}

/* Empty & alerts */
.empty-state,
.week-empty,
.alert {
    padding: 16px;
    border-radius: var(--radius-sm);
}

.empty-state {
    text-align: center;
    background: var(--ops-panel-deep);
    border: 1px solid var(--ops-border);
    display: grid;
    gap: 8px;
    color: var(--ops-muted);
    letter-spacing: 0.08em;
}

.empty-icon {
    font-size: 1.4rem;
    opacity: 0.7;
}

.week-empty {
    background: transparent;
    color: var(--ops-muted);
    text-align: center;
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 24px 8px;
}

.alert-error {
    background: #1a0008;
    border: 1px solid #d1615c55;
    color: var(--ops-red);
    margin-bottom: 16px;
    font-size: 12px;
    letter-spacing: 0.06em;
}

@media (max-width: 1200px) {
    .week-grid,
    .month-grid,
    .month-weekdays {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    .app-shell {
        grid-template-columns: 1fr;
    }

    .sidebar {
        gap: 16px;
        border-right: none;
        border-bottom: 1px solid var(--ops-border);
    }

    .stats-grid,
    .flight-details-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .flight-details-lf {
        max-width: 100%;
    }

    .week-grid,
    .month-grid,
    .month-weekdays {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .main-content {
        padding: 16px;
    }

    .stats-grid,
    .flight-details-grid,
    .week-grid,
    .month-grid,
    .month-weekdays {
        grid-template-columns: 1fr;
    }

    .detail-card-wide {
        grid-column: span 1;
    }

    .flight-card-body {
        grid-template-columns: 1fr;
    }
}