:root {
    --sky-blue: #87CEEB;
    --cloud-white: #FFFFFF;
    --horizon-gray: #E8E8E8;
    --night-blue: #14213D;
    --sunset-orange: #FCA311;
    --storm-gray: #495057;
    --success-green: #28a745;
    --warning-yellow: #ffc107;
    --danger-red: #dc3545;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--horizon-gray);
    color: var(--night-blue);
    line-height: 1.6;
}

/* Navigation */
.navbar {
    background-color: var(--night-blue);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
}

.navbar-brand {
    color: var(--cloud-white) !important;
    font-weight: 600;
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    color: var(--cloud-white) !important;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: var(--sunset-orange) !important;
}

/* Cards */
.card {
    background-color: var(--cloud-white);
    border: none;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin-bottom: 1.5rem;
    transition: transform 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
}

.card-header {
    background-color: var(--night-blue);
    color: var(--cloud-white);
    font-weight: 600;
    border-radius: 8px 8px 0 0 !important;
}

/* Buttons */
.btn {
    border-radius: 6px;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: all 0.2s ease;
}

.btn-primary {
    background-color: var(--night-blue);
    border-color: var(--night-blue);
}

.btn-primary:hover {
    background-color: var(--storm-gray);
    border-color: var(--storm-gray);
}

.btn-accent {
    background-color: var(--sunset-orange);
    border-color: var(--sunset-orange);
    color: var(--cloud-white);
}

.btn-accent:hover {
    background-color: #e69310;
    border-color: #e69310;
    color: var(--cloud-white);
}

/* Forms */
.form-control {
    border-radius: 6px;
    border: 1px solid var(--horizon-gray);
    padding: 0.75rem;
}

.form-control:focus {
    border-color: var(--sunset-orange);
    box-shadow: 0 0 0 0.2rem rgba(252, 163, 17, 0.25);
}

/* Tables */
.table {
    background-color: var(--cloud-white);
    border-radius: 8px;
    overflow: hidden;
}

.table thead th {
    background-color: var(--night-blue);
    color: var(--cloud-white);
    border-bottom: none;
    font-weight: 600;
}

.table tbody tr:hover {
    background-color: var(--horizon-gray);
}

/* Status Badges */
.badge {
    padding: 0.5rem 0.75rem;
    font-weight: 500;
    border-radius: 4px;
}

.badge-available {
    background-color: var(--success-green);
    color: var(--cloud-white);
}

.badge-maintenance {
    background-color: var(--warning-yellow);
    color: var(--night-blue);
}

.badge-grounded {
    background-color: var(--danger-red);
    color: var(--cloud-white);
}

/* Weather Display */
.weather-card {
    background: linear-gradient(135deg, var(--sky-blue), var(--night-blue));
    color: var(--cloud-white);
    padding: 1.5rem;
    border-radius: 8px;
}

.weather-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.weather-info {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

/* Flight Log */
.flight-log {
    background-color: var(--cloud-white);
    padding: 1.5rem;
    border-radius: 8px;
}

.flight-log-header {
    border-bottom: 2px solid var(--horizon-gray);
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
}

.flight-log-times {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.time-entry {
    background-color: var(--horizon-gray);
    padding: 1rem;
    border-radius: 6px;
    text-align: center;
}

.time-entry-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

/* Calendar */
.calendar {
    background-color: var(--cloud-white);
    border-radius: 8px;
    padding: 1rem;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0.5rem;
}

.calendar-day {
    aspect-ratio: 1;
    border: 1px solid var(--horizon-gray);
    border-radius: 4px;
    padding: 0.5rem;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.calendar-day:hover {
    background-color: var(--horizon-gray);
}

.calendar-day.booked {
    background-color: var(--sunset-orange);
    color: var(--cloud-white);
}

/* Aircraft Cards */
.aircraft-card {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
}

.aircraft-image {
    width: 100%;
    height: 200px;
    object-fit: contain;
}

.aircraft-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(20, 33, 61, 0.9));
    color: var(--cloud-white);
    padding: 1rem;
}

.aircraft-status {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

/* Dashboard Widgets */
.widget {
    background-color: var(--cloud-white);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.widget-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--night-blue);
}

.widget-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--sunset-orange);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

/* Responsive Design */
@media (max-width: 768px) {
    .flight-log-times {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .calendar-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Print Styles */
@media print {
    .no-print {
        display: none;
    }
    
    .flight-log {
        border: 1px solid #000;
    }
    
    .table {
        border-collapse: collapse;
    }
    
    .table th,
    .table td {
        border: 1px solid #000;
    }
}