/* NN Architecture SVG Visualizer — Tool-specific styles */

.nn-svg-app {
    margin-top: 1rem;
}

/* Tab bar */
.nn-tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid #dee2e6;
    margin-bottom: 1rem;
}
.nn-tab-btn {
    padding: 0.6rem 1.2rem;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    color: #6c757d;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: color 0.2s, border-color 0.2s;
}
.nn-tab-btn:hover { color: #333; }
.nn-tab-btn.active {
    color: #6366f1;
    border-bottom-color: #6366f1;
}

/* Layout: controls + canvas */
.nn-layout {
    display: flex;
    gap: 0.75rem;
    min-height: 560px;
}
.nn-controls {
    width: 310px;
    min-width: 260px;
    max-height: 82vh;
    overflow-y: auto;
    padding: 0;
    border: none;
    border-radius: 10px;
    background: #ffffff;
    flex-shrink: 0;
    box-shadow: 0 1px 2px rgba(0,0,0,0.04), 0 4px 16px rgba(0,0,0,0.06), 0 0 0 1px rgba(0,0,0,0.04);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    scrollbar-width: thin;
    scrollbar-color: #cbd5e1 transparent;
}
.nn-controls::-webkit-scrollbar { width: 4px; }
.nn-controls::-webkit-scrollbar-track { background: transparent; }
.nn-controls::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 2px; }
.nn-controls::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* Inner padding wrapper — keeps scrollbar flush to edge */
.nn-tab-panel,
.nn-preset-bar,
.nn-action-bar,
.nn-anim-controls,
.nn-training-status,
.nn-gif-status {
    margin-left: 0.75rem;
    margin-right: 0.75rem;
}
.nn-tab-panel { padding-bottom: 0.5rem; }
.nn-preset-bar { padding-top: 0.75rem; }

.nn-canvas-wrap {
    flex: 1;
    min-width: 0;
    border: none;
    border-radius: 10px;
    overflow: hidden;
    position: relative;
    background: #ffffff;
    box-shadow: 0 1px 2px rgba(0,0,0,0.04), 0 4px 16px rgba(0,0,0,0.06), 0 0 0 1px rgba(0,0,0,0.04);
}
.nn-canvas-wrap svg,
.nn-canvas-wrap canvas {
    display: block;
    width: 100%;
    height: 100%;
}

/* Controls sections */
.nn-ctrl-section {
    margin-bottom: 0;
    padding: 0.55rem 0;
    border-bottom: 1px solid #f1f5f9;
}
.nn-ctrl-section:last-child { border-bottom: none; }
.nn-ctrl-section h5 {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.4rem;
    color: #94a3b8;
    padding-left: 1px;
}

/* Control rows */
.nn-ctrl-row {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    margin-bottom: 0.3rem;
    font-size: 0.78rem;
    line-height: 1.3;
}
.nn-ctrl-row label {
    min-width: 80px;
    flex-shrink: 0;
    margin: 0;
    color: #475569;
    font-size: 0.76rem;
    font-weight: 450;
    user-select: none;
    letter-spacing: -0.01em;
}
.nn-ctrl-row input[type="range"] {
    flex: 1;
    min-width: 48px;
    height: 3px;
    -webkit-appearance: none;
    appearance: none;
    background: linear-gradient(90deg, #e2e8f0, #e2e8f0);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}
.nn-ctrl-row input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 13px;
    height: 13px;
    border-radius: 50%;
    background: #6366f1;
    border: 2px solid #fff;
    box-shadow: 0 0.5px 2px rgba(0,0,0,0.18), 0 0 0 0.5px rgba(99,102,241,0.15);
    cursor: pointer;
    transition: transform 0.12s, box-shadow 0.12s;
}
.nn-ctrl-row input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 1px 4px rgba(99,102,241,0.35), 0 0 0 0.5px rgba(99,102,241,0.2);
}
.nn-ctrl-row input[type="range"]::-moz-range-thumb {
    width: 13px;
    height: 13px;
    border-radius: 50%;
    background: #6366f1;
    border: 2px solid #fff;
    box-shadow: 0 0.5px 2px rgba(0,0,0,0.18);
    cursor: pointer;
}
.nn-ctrl-row input[type="color"] {
    width: 26px;
    height: 20px;
    padding: 0;
    border: 1.5px solid #e2e8f0;
    border-radius: 4px;
    cursor: pointer;
    transition: border-color 0.12s, box-shadow 0.12s;
}
.nn-ctrl-row input[type="color"]:hover {
    border-color: #6366f1;
    box-shadow: 0 0 0 2px rgba(99,102,241,0.1);
}
.nn-ctrl-row input[type="number"] {
    width: 56px;
    padding: 0.18rem 0.3rem;
    border: 1px solid #e2e8f0;
    border-radius: 5px;
    font-size: 0.76rem;
    font-family: 'JetBrains Mono', 'SF Mono', monospace;
    background: #f8fafc;
    color: #1e293b;
    transition: border-color 0.12s, box-shadow 0.12s;
    text-align: center;
}
.nn-ctrl-row input[type="number"]:focus {
    border-color: #6366f1;
    box-shadow: 0 0 0 2.5px rgba(99,102,241,0.12);
    outline: none;
    background: #fff;
}
.nn-ctrl-row input[type="checkbox"] {
    width: 14px;
    height: 14px;
    margin-right: 0.2rem;
    accent-color: #6366f1;
    cursor: pointer;
    flex-shrink: 0;
}
.nn-ctrl-row select {
    padding: 0.2rem 0.35rem;
    border: 1px solid #e2e8f0;
    border-radius: 5px;
    font-size: 0.76rem;
    background: #f8fafc;
    color: #1e293b;
    cursor: pointer;
    transition: border-color 0.12s;
}
.nn-ctrl-row select:focus {
    border-color: #6366f1;
    outline: none;
}

/* Architecture rows (add/remove layers) */
.nn-arch-row {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    margin-bottom: 0.25rem;
    padding: 0.25rem 0.35rem;
    background: #f8fafc;
    border-radius: 6px;
    border: 1px solid transparent;
    transition: border-color 0.12s, background 0.12s;
}
.nn-arch-row:hover { border-color: #e2e8f0; background: #f1f5f9; }
.nn-arch-row input[type="number"] {
    width: 48px;
    padding: 0.15rem 0.25rem;
    border: 1px solid #e2e8f0;
    border-radius: 4px;
    font-size: 0.73rem;
    font-family: 'JetBrains Mono', 'SF Mono', monospace;
    background: #fff;
    color: #1e293b;
    text-align: center;
}
.nn-arch-row input[type="number"]:focus {
    border-color: #6366f1;
    box-shadow: 0 0 0 2px rgba(99,102,241,0.1);
    outline: none;
}
.nn-arch-row input[type="range"] {
    flex: 1;
    min-width: 36px;
}
.nn-arch-row select {
    padding: 0.12rem 0.2rem;
    font-size: 0.68rem;
    border: 1px solid #e2e8f0;
    border-radius: 4px;
    background: #fff;
    color: #475569;
}
.nn-arch-btn {
    width: 22px;
    height: 22px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 700;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform 0.1s, box-shadow 0.1s;
}
.nn-arch-btn:hover { transform: scale(1.12); }
.nn-arch-btn:active { transform: scale(0.92); }
.nn-arch-btn-remove {
    background: #fef2f2;
    color: #ef4444;
    box-shadow: 0 0 0 1px rgba(239,68,68,0.1);
}
.nn-arch-btn-remove:hover { background: #fee2e2; box-shadow: 0 1px 4px rgba(239,68,68,0.2); }
.nn-arch-btn-add {
    background: #eef2ff;
    color: #6366f1;
    box-shadow: 0 0 0 1px rgba(99,102,241,0.1);
}
.nn-arch-btn-add:hover { background: #e0e7ff; box-shadow: 0 1px 4px rgba(99,102,241,0.2); }

/* Action bar (play + download) */
.nn-action-bar {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

/* Skip connection tags */
.nn-skip-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.15rem 0.5rem;
    margin: 0.15rem 0.2rem 0.15rem 0;
    background: #e0e7ff;
    color: #4338ca;
    font-size: 0.72rem;
    font-weight: 500;
    border-radius: 12px;
    border: 1px solid #c7d2fe;
}
.nn-skip-remove {
    background: none;
    border: none;
    color: #6366f1;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 700;
    line-height: 1;
    padding: 0 2px;
    opacity: 0.6;
}
.nn-skip-remove:hover { opacity: 1; color: #dc2626; }
[data-theme="dark"] .nn-skip-tag {
    background: #312e81;
    color: #a5b4fc;
    border-color: #4338ca;
}
[data-theme="dark"] .nn-skip-remove { color: #a5b4fc; }
[data-theme="dark"] .nn-skip-remove:hover { color: #f87171; }

/* Record GIF button */
.nn-record-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.45rem 0.8rem;
    background: #f8fafc;
    color: #475569;
    border: 1px solid #e2e8f0;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 500;
    transition: all 0.2s;
}
.nn-record-btn:hover { background: #f1f5f9; border-color: #dc2626; color: #dc2626; }
.nn-record-btn.nn-recording {
    background: #fef2f2;
    border-color: #dc2626;
    color: #dc2626;
}
.nn-rec-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #94a3b8;
    flex-shrink: 0;
}
.nn-rec-dot.nn-rec-active {
    background: #dc2626;
    animation: nn-rec-blink 0.8s ease-in-out infinite;
}
@keyframes nn-rec-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}
.nn-gif-status {
    margin-bottom: 0.5rem;
    padding: 0.35rem 0.6rem;
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    border-radius: 5px;
    font-size: 0.78rem;
    color: #1e40af;
    text-align: center;
}
[data-theme="dark"] .nn-record-btn {
    background: #1e293b;
    color: #94a3b8;
    border-color: #475569;
}
[data-theme="dark"] .nn-record-btn:hover { background: #1e293b; border-color: #f87171; color: #f87171; }
[data-theme="dark"] .nn-record-btn.nn-recording { background: #451a1a; border-color: #f87171; color: #f87171; }
[data-theme="dark"] .nn-gif-status { background: #1e3a5f; border-color: #1e40af; color: #93c5fd; }

/* Play button */
.nn-play-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 1rem;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.25s ease;
    position: relative;
    overflow: hidden;
}
.nn-play-btn:hover {
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}
.nn-play-btn:active { transform: translateY(0); }
.nn-play-btn.nn-playing {
    background: linear-gradient(135deg, #ef4444 0%, #f97316 100%);
    animation: nn-pulse-btn 1.5s ease-in-out infinite;
}
.nn-play-btn.nn-playing:hover {
    background: linear-gradient(135deg, #dc2626 0%, #ea580c 100%);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
}
.nn-play-icon {
    font-size: 0.75rem;
    line-height: 1;
}

@keyframes nn-pulse-btn {
    0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.3); }
    50% { box-shadow: 0 0 0 6px rgba(239, 68, 68, 0); }
}

/* Preset bar */
.nn-preset-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
}
.nn-preset-bar label {
    font-weight: 500;
    color: #475569;
    margin: 0;
    white-space: nowrap;
}
.nn-preset-bar select {
    flex: 1;
    padding: 0.3rem 0.5rem;
    border: 1px solid #cbd5e1;
    border-radius: 5px;
    font-size: 0.85rem;
    background: #fff;
    cursor: pointer;
}

/* Animation controls */
.nn-anim-controls {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    margin-bottom: 0.75rem;
    padding: 0.5rem;
    background: #f1f5f9;
    border-radius: 5px;
    font-size: 0.8rem;
}
.nn-anim-controls .nn-ctrl-row {
    margin-bottom: 0;
    font-size: 0.8rem;
}
.nn-anim-controls label {
    min-width: auto;
    font-size: 0.8rem;
}
.nn-anim-controls select {
    flex: 1;
    padding: 0.2rem 0.3rem;
    border: 1px solid #cbd5e1;
    border-radius: 3px;
    font-size: 0.8rem;
    background: #fff;
}

/* Training status */
.nn-training-status {
    margin-bottom: 0.5rem;
    padding: 0.4rem 0.6rem;
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    border-radius: 5px;
    font-size: 0.8rem;
    color: #92400e;
    text-align: center;
}

/* Download button */
.nn-download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.45rem;
    background: #f1f5f9;
    color: #475569;
    border: 1px solid #cbd5e1;
    border-radius: 5px;
    cursor: pointer;
    line-height: 0;
    transition: all 0.2s;
}
.nn-download-icon { display: block; }
.nn-download-btn:hover {
    background: #e2e8f0;
    color: #1e293b;
}

/* Particle glow in SVG */
.nn-particles circle {
    pointer-events: none;
}

/* Utility */
.nn-hidden { display: none !important; }

/* Tab panel */
.nn-tab-panel { display: none; }
.nn-tab-panel.active { display: block; }

/* Status bar */
.nn-status {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: #888;
    text-align: right;
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .nn-layout {
        flex-direction: column;
        min-height: auto;
    }
    .nn-controls {
        width: 100%;
        max-height: 300px;
        order: 2;
    }
    .nn-canvas-wrap {
        min-height: 350px;
        order: 1;
    }
}

/* ── Dark mode ── */
[data-theme="dark"] .nn-controls {
    background: #1e293b;
    color: #e2e8f0;
    box-shadow: 0 1px 2px rgba(0,0,0,0.2), 0 4px 20px rgba(0,0,0,0.25), 0 0 0 1px rgba(255,255,255,0.04);
}
[data-theme="dark"] .nn-controls::-webkit-scrollbar-thumb { background: #475569; }
[data-theme="dark"] .nn-controls::-webkit-scrollbar-thumb:hover { background: #64748b; }
[data-theme="dark"] .nn-ctrl-section h5 { color: #64748b; }
[data-theme="dark"] .nn-ctrl-row label { color: #94a3b8; }
[data-theme="dark"] .nn-ctrl-section { border-bottom-color: #293548; }
[data-theme="dark"] .nn-ctrl-row input[type="number"],
[data-theme="dark"] .nn-ctrl-row select,
[data-theme="dark"] .nn-arch-row input[type="number"],
[data-theme="dark"] .nn-arch-row select {
    background: #0f172a;
    color: #e2e8f0;
    border-color: #334155;
}
[data-theme="dark"] .nn-ctrl-row input[type="number"]:focus,
[data-theme="dark"] .nn-arch-row input[type="number"]:focus {
    border-color: #818cf8;
    box-shadow: 0 0 0 2.5px rgba(129,140,248,0.15);
    background: #1e293b;
}
[data-theme="dark"] .nn-ctrl-row input[type="range"] { background: #334155; }
[data-theme="dark"] .nn-ctrl-row input[type="range"]::-webkit-slider-thumb {
    background: #818cf8;
    border-color: #1e293b;
    box-shadow: 0 0.5px 2px rgba(0,0,0,0.4), 0 0 0 0.5px rgba(129,140,248,0.2);
}
[data-theme="dark"] .nn-ctrl-row input[type="range"]::-webkit-slider-thumb:hover {
    box-shadow: 0 1px 4px rgba(129,140,248,0.4), 0 0 0 0.5px rgba(129,140,248,0.3);
}
[data-theme="dark"] .nn-ctrl-row input[type="range"]::-moz-range-thumb { background: #818cf8; border-color: #1e293b; }
[data-theme="dark"] .nn-ctrl-row input[type="color"] { border-color: #334155; }
[data-theme="dark"] .nn-ctrl-row input[type="color"]:hover { border-color: #818cf8; box-shadow: 0 0 0 2px rgba(129,140,248,0.12); }
[data-theme="dark"] .nn-arch-row { background: #0f172a; border-color: transparent; }
[data-theme="dark"] .nn-arch-row:hover { border-color: #334155; background: #162033; }
[data-theme="dark"] .nn-arch-row input[type="number"] { background: #1e293b; }
[data-theme="dark"] .nn-arch-btn-remove { background: rgba(239,68,68,0.1); color: #f87171; box-shadow: none; }
[data-theme="dark"] .nn-arch-btn-remove:hover { background: rgba(239,68,68,0.2); }
[data-theme="dark"] .nn-arch-btn-add { background: rgba(99,102,241,0.1); color: #a5b4fc; box-shadow: none; }
[data-theme="dark"] .nn-arch-btn-add:hover { background: rgba(99,102,241,0.2); }
[data-theme="dark"] .nn-canvas-wrap {
    background: #0f172a;
    box-shadow: 0 1px 2px rgba(0,0,0,0.2), 0 4px 20px rgba(0,0,0,0.25), 0 0 0 1px rgba(255,255,255,0.04);
}
[data-theme="dark"] .nn-tab-btn { color: #94a3b8; }
[data-theme="dark"] .nn-tab-btn:hover { color: #e2e8f0; }
[data-theme="dark"] .nn-tab-btn.active {
    color: #818cf8;
    border-bottom-color: #818cf8;
}
[data-theme="dark"] .nn-tabs { border-bottom-color: #334155; }
[data-theme="dark"] .nn-preset-bar label { color: #94a3b8; }
[data-theme="dark"] .nn-preset-bar select {
    background: #0f172a;
    color: #e2e8f0;
    border-color: #475569;
}
[data-theme="dark"] .nn-anim-controls {
    background: #0f172a;
}
[data-theme="dark"] .nn-anim-controls select {
    background: #1e293b;
    color: #e2e8f0;
    border-color: #475569;
}
[data-theme="dark"] .nn-training-status {
    background: linear-gradient(135deg, #451a03, #78350f);
    color: #fde68a;
}
[data-theme="dark"] .nn-download-btn {
    background: #1e293b;
    color: #94a3b8;
    border-color: #475569;
}
[data-theme="dark"] .nn-download-btn:hover {
    background: #334155;
    color: #e2e8f0;
}