/* Performance Monitor Styles */
.perf-monitor {
    position: fixed;
    top: 20px;
    right: 20px;
    background: rgba(17, 34, 64, 0.95);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 12px;
    padding: 0;
    min-width: 200px;
    font-family: 'Courier New', monospace;
    z-index: 9999;
    opacity: 0;
    transform: scale(0.8) translateY(-20px);
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(10px);
}

.perf-monitor.visible {
    opacity: 1;
    transform: scale(1) translateY(0);
    pointer-events: auto;
}

.perf-header {
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.2), rgba(0, 212, 255, 0.2));
    padding: 10px 15px;
    border-radius: 12px 12px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: grab;
    user-select: none;
    border-bottom: 1px solid rgba(0, 212, 255, 0.2);
}

.perf-title {
    font-size: 12px;
    font-weight: bold;
    color: #00d4ff;
    letter-spacing: 0.5px;
}

.perf-close {
    background: none;
    border: none;
    color: #8892b0;
    font-size: 20px;
    cursor: pointer;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s;
    padding: 0;
    line-height: 1;
}

.perf-close:hover {
    background: rgba(255, 68, 68, 0.2);
    color: #ff4444;
    transform: rotate(90deg);
}

.perf-stats {
    padding: 15px;
}

.perf-stat {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid rgba(136, 146, 176, 0.1);
}

.perf-stat:last-child {
    border-bottom: none;
}

.perf-label {
    font-size: 11px;
    color: #8892b0;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.perf-value {
    font-size: 14px;
    font-weight: bold;
    color: #00ff88;
    font-family: 'Courier New', monospace;
    text-shadow: 0 0 10px currentColor;
}

/* Hint tooltip for first-time users */
.perf-monitor::after {
    content: 'Press Ctrl+Shift+P to toggle';
    position: absolute;
    bottom: -35px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 102, 255, 0.9);
    color: white;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 10px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
    font-family: 'Inter', sans-serif;
}

.perf-monitor.visible::after {
    animation: hintFadeIn 0.5s 2s forwards;
}

@keyframes hintFadeIn {
    0%, 100% { opacity: 0; }
    10%, 90% { opacity: 1; }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .perf-monitor {
        top: 10px;
        right: 10px;
        min-width: 160px;
        font-size: 11px;
    }

    .perf-stats {
        padding: 10px;
    }

    .perf-stat {
        padding: 6px 0;
    }
}