:root {
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #38bdf8;
    --accent-glow: rgba(56, 189, 248, 0.3);
    --military-color: #3b82f6;
    /* Blue */
    --ou-color: #ef4444;
    /* Red */
    --font-family: 'Inter', sans-serif;
}

/* ... existing body and container styles ... */

.aircraft-card.military {
    border-color: var(--military-color);
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.1);
}

.aircraft-card.ou {
    border-color: var(--ou-color);
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.1);
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-family);
    margin: 0;
    padding: 20px;
    height: 100vh;
    box-sizing: border-box;
    overflow: hidden;
    /* Prevent scrolling for dashboard feel */
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    flex-direction: column;
}

header {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
    padding: 0 10px;
    gap: 15px;
}

h1 {
    font-weight: 300;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-size: 1.8rem;
    margin: 0;
    text-align: center;
    width: 100%;
}

.stats-bar {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
}

.stat-item {
    background: var(--card-bg);
    padding: 8px 16px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 80px;
}

.stat-item .label {
    font-size: 0.65rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-item .value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-color);
}

.stat-detail {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 2px;
    text-transform: uppercase;
}

/* Filter Controls Removed */

.grid-view {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    justify-content: flex-start;
    align-content: flex-start;
    overflow-y: auto;
    padding: 10px;
    flex-grow: 1;
}

/* Scrollbar styling */
.grid-view::-webkit-scrollbar {
    width: 6px;
}

.grid-view::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}

.aircraft-card {
    background: var(--card-bg);
    padding: 10px;
    height: 140px;
    /* Fixed height for uniformity */
    overflow: hidden;
    /* Hide anything that overflows */
    box-sizing: border-box;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    transition: transform 0.2s, box-shadow 0.2s;
    animation: fadeIn 0.3s ease-out;
    cursor: pointer;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.aircraft-card:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.aircraft-card.military {
    border-color: var(--military-color);
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 8px;
}

.flight-id {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
    display: block;
}

.route-display {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 2px;
    font-weight: 600;
}

.desc {
    font-size: 0.65rem;
    color: var(--accent-color);
    text-transform: uppercase;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 140px;
}

.icao {
    font-family: monospace;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.card-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
    font-size: 0.8rem;
}

.data-row {
    display: flex;
    flex-direction: column;
}

.data-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.data-val {
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Close Proximity Alert */
.hidden {
    display: none !important;
}

#close-proximity-container {
    margin-bottom: 20px;
    padding: 0 10px;
    animation: pulse 2s infinite;
}

.alert-box {
    background: rgba(239, 68, 68, 0.2);
    border: 2px solid var(--military-color);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    backdrop-filter: blur(10px);
    box-shadow: 0 0 20px rgba(239, 68, 68, 0.4);
}

.alert-header {
    color: var(--military-color);
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 10px;
    letter-spacing: 2px;
}

#alert-content {
    font-size: 1.5rem;
    font-weight: 600;
}

.alert-detail {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-top: 5px;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.02);
    }

    100% {
        transform: scale(1);
    }
}