:root {
    --bg-dark: #0b0f19;
    --card-bg: rgba(22, 30, 49, 0.75);
    --card-border: rgba(255, 255, 255, 0.08);
    --accent-cyan: #00f2fe;
    --accent-blue: #4facfe;
    --accent-purple: #7f00ff;
    --accent-orange: #ff9900;
    --accent-green: #00e676;
    --text-main: #f0f4f8;
    --text-muted: #8a99ad;
    --font-main: 'Outfit', sans-serif;
    --font-code: 'JetBrains Mono', monospace;
}

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

body {
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(at 0% 0%, rgba(79, 172, 254, 0.12) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(127, 0, 255, 0.12) 0px, transparent 50%);
    color: var(--text-main);
    font-family: var(--font-main);
    min-height: 100vh;
    padding: 24px;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--card-border);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.badge {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    color: #000;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.logo h1 {
    font-size: 1.6rem;
    font-weight: 700;
    background: linear-gradient(90deg, #fff, var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.mode-status {
    display: flex;
    align-items: center;
    gap: 10px;
}

.status-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
}

.mode-tag {
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.mode-auto {
    background: rgba(0, 230, 118, 0.15);
    color: var(--accent-green);
    border: 1px solid rgba(0, 230, 118, 0.4);
}
.mode-rate {
    background: rgba(255, 153, 0, 0.15);
    color: var(--accent-orange);
    border: 1px solid rgba(255, 153, 0, 0.4);
}
.mode-manual {
    background: rgba(255, 68, 68, 0.15);
    color: #ff4444;
    border: 1px solid rgba(255, 68, 68, 0.4);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 480px;
    gap: 24px;
}

@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

.card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.card h2 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-main);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.controls-mini {
    display: flex;
    gap: 10px;
}

.btn {
    padding: 8px 14px;
    border-radius: 8px;
    border: none;
    font-family: var(--font-main);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-usb {
    background: linear-gradient(135deg, #00f2fe, #4facfe);
    color: #000;
    font-weight: 700;
    box-shadow: 0 0 14px rgba(0, 242, 254, 0.4);
}
.btn-usb:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(0, 242, 254, 0.6);
}

.btn-success {
    background: linear-gradient(135deg, #00e676, #00b0ff);
    color: #000;
    font-weight: 700;
}
.btn-primary {
    background: linear-gradient(135deg, #7f00ff, #e100ff);
    color: #fff;
    font-weight: 600;
}

.btn-warning {
    background: linear-gradient(135deg, #ff9900, #e65c00);
    color: #fff;
    box-shadow: 0 0 12px rgba(255, 153, 0, 0.4);
}
.btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 18px rgba(255, 153, 0, 0.6);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
    border: 1px solid var(--card-border);
}

.reverse-card {
    border-left: 4px solid var(--accent-purple);
}

.reverse-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.reverse-section h4 {
    font-size: 0.85rem;
    color: var(--accent-cyan);
    margin-bottom: 8px;
}

.toggle-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 0, 0, 0.25);
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid var(--card-border);
    margin-bottom: 6px;
    font-size: 0.85rem;
    cursor: pointer;
}

.toggle-item input[type="checkbox"] {
    accent-color: var(--accent-purple);
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.toggle-item .t-state {
    font-family: var(--font-code);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
}

.cal-card {
    border-left: 4px solid var(--accent-cyan);
}
.cal-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 14px;
    line-height: 1.4;
}
.cal-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 12px;
}
.cal-status {
    font-family: var(--font-code);
    font-size: 0.8rem;
    color: var(--accent-cyan);
    background: rgba(0, 0, 0, 0.3);
    padding: 6px 10px;
    border-radius: 6px;
}

.canvas-container {
    position: relative;
    width: 100%;
    background: rgba(0, 0, 0, 0.4);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--card-border);
    margin-bottom: 20px;
}

#airplane-canvas {
    width: 100%;
    height: auto;
    display: block;
}

.telemetry-overlay {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(11, 15, 25, 0.85);
    backdrop-filter: blur(8px);
    padding: 10px 14px;
    border-radius: 8px;
    border: 1px solid var(--card-border);
    font-family: var(--font-code);
    font-size: 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.tele-item .val {
    color: var(--accent-cyan);
    font-weight: 600;
}

.servo-outputs h3 {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.servo-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.servo-box {
    background: rgba(0, 0, 0, 0.3);
    padding: 12px;
    border-radius: 10px;
    border: 1px solid var(--card-border);
}

.servo-box .pin {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
}

.meter-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 6px;
}

.meter-bar .fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue));
    transition: width 0.05s ease;
}

.pwm-val {
    font-family: var(--font-code);
    font-size: 0.85rem;
    color: var(--accent-cyan);
    font-weight: 600;
}

.control-group {
    margin-bottom: 16px;
}

.control-group label {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 6px;
    font-weight: 500;
}

.control-group label span {
    color: var(--accent-cyan);
    font-family: var(--font-code);
    font-weight: 600;
}

input[type="range"] {
    width: 100%;
    accent-color: var(--accent-cyan);
    background: rgba(255, 255, 255, 0.1);
    height: 6px;
    border-radius: 3px;
    cursor: pointer;
}