/* SVD Image Compressor - Dark engineering dashboard theme */
#svdContainer {
    --bg-color: #0d1117;
    --panel-color: #161b22;
    --accent-color: #58a6ff;
    --text-color: #c9d1d9;
    --border-color: #30363d;
    max-width: 960px;
    margin: 0 auto;
    font-family: 'Segoe UI', 'Roboto', 'Courier New', monospace;
    background: var(--bg-color);
    color: var(--text-color);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

#svdContainer .svd-formula {
    text-align: center;
    font-family: 'Courier New', Courier, monospace;
    font-size: 1.1em;
    color: var(--accent-color);
    margin: 12px 0 20px 0;
    padding: 12px;
    background: rgba(88, 166, 255, 0.08);
    border: 1px solid var(--accent-color);
    border-radius: 4px;
}

#svdContainer .svd-topbar {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: center;
    margin-bottom: 20px;
}

#svdContainer .svd-topbar label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: #bbb;
    font-size: 0.9em;
}

#svdContainer .svd-file-row input[type="file"] {
    background: #333;
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 6px 10px;
    font-size: 0.9em;
    cursor: pointer;
}

#svdContainer .svd-file-row input[type="file"]::file-selector-button {
    background: var(--accent-color);
    color: #000;
    border: none;
    padding: 4px 10px;
    border-radius: 4px;
    margin-right: 10px;
    cursor: pointer;
    font-weight: bold;
}

#svdContainer .svd-btn {
    background: var(--accent-color);
    color: #000;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    font-size: 0.9em;
}

#svdContainer .svd-btn:hover {
    opacity: 0.9;
}

#svdContainer .svd-btn.secondary {
    background: #444;
    color: var(--text-color);
}

#svdContainer .canvas-wrapper {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
    align-items: flex-start;
    margin: 20px 0;
}

#svdContainer .canvas-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

#svdContainer .canvas-wrap span {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9em;
    color: #aaa;
}

#svdContainer .canvas-wrap canvas {
    border: 2px solid var(--border-color);
    background: #000;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
}

#svdContainer .svd-control-panel {
    background: rgba(88, 166, 255, 0.05);
    border: 1px solid var(--accent-color);
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
}

#svdContainer .svd-control-panel label {
    display: block;
    margin-bottom: 4px;
    color: #bbb;
    font-size: 0.9em;
}

#svdContainer input[type="range"] {
    width: 100%;
    accent-color: var(--accent-color);
    margin: 8px 0;
}

#svdContainer .svd-k-display {
    font-family: 'Courier New', monospace;
    font-size: 1em;
    color: var(--accent-color);
    margin-bottom: 8px;
}

#svdContainer .svd-stats {
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9em;
    color: var(--accent-color);
    margin-top: 12px;
    padding: 10px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

#svdContainer .svd-stats .status-ok {
    color: #3fb950;
}

#svdContainer .svd-chart-wrap {
    margin-top: 15px;
    width: 100%;
}

#svdContainer .svd-chart-wrap span {
    display: block;
    margin-bottom: 6px;
    font-size: 0.9em;
    color: #aaa;
}

#svdContainer #svdChart {
    border: 1px solid var(--border-color);
    background: #0d1117;
    display: block;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

#svdContainer .svd-loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: svd-spin 0.8s linear infinite;
    vertical-align: middle;
    margin-left: 8px;
}

#svdContainer .svd-loading.hidden {
    display: none;
}

@keyframes svd-spin {
    to { transform: rotate(360deg); }
}

#svdContainer .svd-options {
    margin-top: 10px;
}

#svdContainer .svd-options label {
    display: inline-flex;
    align-items: center;
    margin-right: 15px;
    cursor: pointer;
}

#svdContainer .svd-options input[type="checkbox"] {
    margin-right: 6px;
    accent-color: var(--accent-color);
}

#svdContainer .svd-decomposed-row {
    display: flex;
    flex-wrap: nowrap;
    gap: 15px;
    justify-content: center;
    align-items: flex-start;
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

#svdContainer .svd-decomposed-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    flex: 1;
    min-width: 0;
}

#svdContainer .svd-decomposed-wrap span {
    display: block;
    margin-bottom: 6px;
    font-size: 0.9em;
    color: #aaa;
}

#svdContainer .svd-decomposed-wrap canvas {
    border: 1px solid var(--border-color);
    background: #0d1117;
    display: block;
    max-width: 100%;
    width: auto;
    height: auto;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
}