/* Tool Component Styling */
.tool-app-box {
    background: var(--bg-card);
    border-radius: 12px;
}

.tool-app-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
    margin-bottom: 20px;
}

.tool-app-header h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 5px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tool-textarea {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    border-radius: 10px;
    padding: 15px;
    font-size: 1rem;
    font-family: inherit;
    resize: vertical;
    outline: none;
}

.tool-textarea:focus, .tool-input:focus {
    border-color: #6366f1;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.tool-input {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    border-radius: 8px;
    padding: 12px 15px;
    font-size: 1rem;
    outline: none;
}

.tool-range {
    width: 100%;
    accent-color: #6366f1;
}

.tool-grid-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.tool-action-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 15px;
}

.stat-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 16px;
    border-radius: 10px;
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 1.6rem;
    font-weight: 800;
    color: #38bdf8;
}

.stat-title {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.qr-canvas img, .qr-canvas canvas {
    margin: 0 auto;
    border-radius: 12px;
    padding: 12px;
    background: white;
    box-shadow: var(--shadow-md);
}

@media (max-width: 768px) {
    .tool-grid-2col { grid-template-columns: 1fr; }
}