.cnn-demo {
    width: 100%;
}

.cnn-step-panel {
    width: 100%;
    margin-bottom: 1rem;
}

.cnn-topbar {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}

.cnn-topbar-right {
    display: flex;
    gap: 0.45rem;
    align-items: center;
    flex-wrap: wrap;
}

.cnn-topbar-left h4 {
    margin: 0;
    font-size: 1.05rem;
}

.cnn-subtitle {
    margin: 0.35rem 0 0;
    opacity: 0.85;
    font-size: 0.92rem;
}

.cnn-status-badge {
    display: inline-flex;
    align-items: center;
    border-radius: 9999px;
    padding: 0.28rem 0.75rem;
    border: 1px solid var(--PRIMARY-color, #4f46e5);
    font-size: 0.8rem;
    white-space: nowrap;
}

.cnn-state-btn {
    margin: 0;
    padding: 0.34rem 0.7rem 0.4rem;
    font-size: 0.78rem;
}

.cnn-state-btn.is-trained {
    border-color: color-mix(in srgb, #22c55e 70%, var(--BOX-BORDER-color));
    color: color-mix(in srgb, #22c55e 75%, currentColor);
}

.cnn-state-btn.is-untrained {
    border-color: color-mix(in srgb, #f59e0b 65%, var(--BOX-BORDER-color));
    color: color-mix(in srgb, #f59e0b 75%, currentColor);
}

.cnn-draw-layout {
    display: grid;
    grid-template-columns: minmax(380px, 1fr) 320px;
    gap: 1rem;
    align-items: start;
}

.cnn-draw-col,
.cnn-pred-col,
.cnn-train-layout {
    width: 100%;
}

.cnn-panel {
    border: 1px solid var(--BOX-BORDER-color, rgba(255, 255, 255, 0.1));
    border-radius: 12px;
    padding: 0.9rem;
    background: var(--MAIN-BG-color, transparent);
}

.cnn-panel h5 {
    margin: 0 0 0.8rem;
    font-size: 0.95rem;
}

#cnnDrawCanvas {
    width: 100%;
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 10px;
    border: 1px solid var(--BOX-BORDER-color, rgba(255, 255, 255, 0.15));
    background: #000;
    cursor: crosshair;
    margin-bottom: 0.75rem;
    touch-action: none;
}

.cnn-canvas-controls,
.cnn-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.cnn-mini-preview-wrap {
    margin-top: 0.2rem;
}

.cnn-mini-label {
    display: block;
    font-size: 0.8rem;
    margin-bottom: 0.3rem;
    opacity: 0.9;
}

#cnnInputPreview {
    border: 1px solid var(--BOX-BORDER-color, rgba(255, 255, 255, 0.15));
    border-radius: 8px;
    background: #000;
}

.cnn-hyperparams {
    display: grid;
    grid-template-columns: repeat(3, minmax(120px, 1fr));
    gap: 0.6rem;
    margin-bottom: 0.8rem;
}

.cnn-hyperparams label {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    font-size: 0.8rem;
}

.cnn-hyperparams input {
    border: 1px solid var(--BOX-BORDER-color, rgba(255, 255, 255, 0.2));
    border-radius: 8px;
    background: transparent;
    color: inherit;
    padding: 0.35rem 0.5rem;
    font-size: 0.9rem;
}

.cnn-training-log {
    margin-top: 0.8rem;
    min-height: 5.8rem;
    max-height: 11.8rem;
    overflow-y: auto;
    border: 1px dashed var(--BOX-BORDER-color, rgba(255, 255, 255, 0.2));
    border-radius: 8px;
    padding: 0.6rem;
    font-size: 0.8rem;
    line-height: 1.35;
}

.cnn-training-log .log-line {
    margin-bottom: 0.35rem;
}

.cnn-training-log .log-line:last-child {
    margin-bottom: 0;
}

.cnn-prediction-box {
    margin-top: 0.65rem;
    border: 1px solid var(--BOX-BORDER-color, rgba(255, 255, 255, 0.15));
    border-radius: 10px;
    padding: 0.7rem;
}

.cnn-pred-title {
    font-size: 0.82rem;
    opacity: 0.9;
}

.cnn-predict-notice {
    margin: 0.35rem 0 0.45rem;
    padding: 0.35rem 0.45rem;
    border-radius: 6px;
    border: 1px dashed color-mix(in srgb, #f59e0b 70%, var(--BOX-BORDER-color));
    font-size: 0.75rem;
    line-height: 1.3;
}

.cnn-predict-notice.is-trained {
    border-color: color-mix(in srgb, #22c55e 65%, var(--BOX-BORDER-color));
    opacity: 0.9;
}

.cnn-pred-main {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.1;
    margin: 0.2rem 0 0.6rem;
}

.cnn-prob-bars {
    display: grid;
    gap: 0.28rem;
}

.cnn-prob-row {
    display: grid;
    grid-template-columns: 18px 1fr 42px;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.72rem;
}

.cnn-bar-track {
    width: 100%;
    height: 8px;
    border-radius: 9999px;
    background: rgba(128, 128, 128, 0.25);
    overflow: hidden;
}

.cnn-bar-fill {
    height: 100%;
    background: var(--PRIMARY-color, #4f46e5);
    width: 0%;
}

.cnn-help-text,
.cnn-small-note {
    font-size: 0.84rem;
    line-height: 1.4;
}

.cnn-filters-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(64px, 1fr));
    gap: 0.6rem;
    margin: 0.7rem 0;
}

.cnn-network-box {
    border: 1px solid var(--BOX-BORDER-color, rgba(255, 255, 255, 0.15));
    border-radius: 10px;
    padding: 0.5rem;
    margin: 0.6rem 0 0.8rem;
}

.cnn-hover-info {
    margin-top: 0.55rem;
    padding: 0.45rem 0.55rem;
    border: 1px dashed var(--BOX-BORDER-color, rgba(255, 255, 255, 0.2));
    border-radius: 8px;
    font-size: 0.79rem;
    line-height: 1.35;
}

.cnn-colormap-legend {
    margin: 0.55rem 0 0.8rem;
    border: 1px solid var(--BOX-BORDER-color, rgba(255, 255, 255, 0.14));
    border-radius: 8px;
    padding: 0.55rem;
}

.cnn-legend-item {
    display: grid;
    grid-template-columns: 110px 1fr 110px;
    gap: 0.55rem;
    align-items: center;
    font-size: 0.75rem;
    margin-bottom: 0.35rem;
}

.cnn-legend-gradient {
    height: 10px;
    border-radius: 999px;
    border: 1px solid var(--BOX-BORDER-color, rgba(255, 255, 255, 0.2));
}

.cnn-legend-activation {
    background: linear-gradient(90deg, rgb(45, 70, 120), rgb(105, 200, 210));
}

.cnn-legend-filter {
    background: linear-gradient(90deg, rgb(230, 40, 70), rgb(140, 90, 70), rgb(60, 220, 70));
}

#cnnNetworkSvg {
    width: 100%;
    height: auto;
    display: block;
    background: rgba(0, 0, 0, 0.18);
    border-radius: 8px;
}

.cnn-net-edge {
    stroke: rgba(140, 140, 150, 0.25);
    stroke-width: 1;
    transition: stroke 120ms ease, stroke-width 120ms ease;
}

.cnn-net-node {
    stroke: rgba(255, 255, 255, 0.35);
    stroke-width: 1;
    fill: rgba(120, 120, 130, 0.2);
    transition: stroke 120ms ease, stroke-width 120ms ease, fill 120ms ease;
}

.cnn-net-value {
    fill: currentColor;
    font-size: 9px;
    opacity: 0.9;
}

.cnn-net-layer {
    fill: currentColor;
    font-size: 10px;
    opacity: 0.75;
}

.cnn-filter-box {
    border: 1px solid var(--BOX-BORDER-color, rgba(255, 255, 255, 0.15));
    border-radius: 8px;
    padding: 0.35rem;
    text-align: center;
}

.cnn-filter-box canvas {
    display: block;
    margin: 0 auto 0.2rem;
    border-radius: 4px;
    background: #0f0f10;
}

.cnn-filter-name {
    font-size: 0.7rem;
    opacity: 0.9;
}

/* ── Prediction modal ─────────────────────────────────── */
.cnn-modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(3px);
    animation: cnn-fade-in 180ms ease;
}

.cnn-modal-overlay[hidden] {
    display: none;
}

@keyframes cnn-fade-in {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.cnn-modal-box {
    background: var(--MAIN-BG-color, #1a1a2e);
    border: 1px solid var(--BOX-BORDER-color, rgba(255, 255, 255, 0.15));
    border-radius: 16px;
    padding: 2rem 2.5rem;
    text-align: center;
    min-width: 220px;
    max-width: 90vw;
    animation: cnn-modal-pop 200ms cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

@keyframes cnn-modal-pop {
    from {
        transform: scale(0.85);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

.cnn-modal-title {
    font-size: 0.85rem;
    opacity: 0.75;
    margin-bottom: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.cnn-modal-digit {
    font-size: 5rem;
    font-weight: 800;
    line-height: 1;
    margin: 0.3rem 0 1rem;
    color: var(--PRIMARY-color, #4f46e5);
}

.cnn-modal-warning {
    margin-bottom: 1rem;
    padding: 0.5rem 0.7rem;
    border-radius: 8px;
    border: 1px dashed color-mix(in srgb, #f59e0b 70%, var(--BOX-BORDER-color));
    font-size: 0.8rem;
    line-height: 1.35;
    text-align: left;
}

.cnn-modal-warning[hidden] {
    display: none;
}

.cnn-modal-close-btn {
    margin-top: 0.25rem;
}

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 768px) {
    .cnn-topbar {
        flex-direction: column;
        align-items: stretch;
    }

    .cnn-status-badge {
        width: fit-content;
    }

    .cnn-draw-layout {
        grid-template-columns: 1fr;
    }

    .cnn-hyperparams {
        grid-template-columns: repeat(2, minmax(100px, 1fr));
    }

    .cnn-legend-item {
        grid-template-columns: 80px 1fr 80px;
    }
}