:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #141414;
    --bg-tertiary: #1e1e1e;
    --bg-hover: #2a2a2a;
    --text-primary: #f0f0f0;
    --text-secondary: #888;
    --text-muted: #666;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-light: rgba(59, 130, 246, 0.15);
    --success: #22c55e;
    --error: #ef4444;
    --border: #2a2a2a;
    --border-light: #333;
    --shadow: rgba(0, 0, 0, 0.4);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 24px;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    border: 1px solid var(--border);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 14px;
}

.header-left h1 {
    font-size: 26px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.version {
    background: var(--bg-tertiary);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.status-indicator,
.queue-info {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 500;
    border: 1px solid var(--border);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-secondary);
    animation: pulse 2s infinite;
}

.status-indicator.healthy .status-dot {
    background: var(--success);
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.4);
}

.status-indicator.unhealthy .status-dot {
    background: var(--error);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Main Content */
main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: start;
}

@media (max-width: 1200px) {
    main {
        grid-template-columns: 1fr;
    }
}

/* Tabs */
.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.tab-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.tab-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-light);
}

.tab-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Panel */
.panel {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 24px;
    border: 1px solid var(--border);
}

.section {
    margin-bottom: 24px;
}

.section:last-child {
    margin-bottom: 0;
}

.section h2 {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.section h2 svg {
    color: var(--accent);
}

.section-title {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 24px 0 16px 0;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

/* Settings Grid */
.settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 20px;
}

.setting-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Form Elements */
textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 14px;
    resize: vertical;
    transition: all 0.2s ease;
    line-height: 1.5;
}

textarea:focus,
input:focus,
select:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--bg-hover);
}

textarea::placeholder {
    color: var(--text-muted);
}

label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

select,
input[type="number"] {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
}

select {
    cursor: pointer;
}

/* Sliders */
.slider-group {
    margin-bottom: 20px;
}

.slider-group:last-child {
    margin-bottom: 0;
}

.slider-group label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.value-badge {
    display: inline-block;
    padding: 4px 10px;
    background: var(--accent);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 700;
    min-width: 36px;
    text-align: center;
}

.slider-group input[type="range"] {
    width: 100%;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    outline: none;
    -webkit-appearance: none;
}

.slider-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 2px 6px rgba(59, 130, 246, 0.4);
}

.slider-group input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--accent-hover);
    transform: scale(1.1);
}

.slider-group small {
    display: block;
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-muted);
}

/* Seed Input */
.seed-input {
    display: flex;
    gap: 12px;
    align-items: stretch;
}

.seed-input input[type="number"] {
    flex: 1;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    white-space: nowrap;
    font-size: 13px;
    font-weight: 500;
    padding: 0;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--accent);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary {
    width: 100%;
    background: var(--accent);
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover:not(:disabled) {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.4);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

.btn-primary:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--border-light);
}

/* Dropzone */
.dropzone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-md);
    padding: 40px 32px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--bg-tertiary);
}

.dropzone:hover,
.dropzone.dragover {
    border-color: var(--accent);
    background: var(--accent-light);
}

.dropzone-content svg {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.dropzone-content p {
    color: var(--text-primary);
    margin-bottom: 4px;
    font-weight: 500;
}

.dropzone-hint {
    color: var(--text-muted);
    font-size: 12px;
}

.preview-container {
    position: relative;
}

.preview-container img {
    max-width: 100%;
    max-height: 300px;
    border-radius: var(--radius-md);
}

.btn-remove {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 8px 16px;
    background: var(--error);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 12px;
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.3);
}

.btn-remove:hover {
    background: #dc2626;
}

/* Results Section */
.results-column {
    position: sticky;
    top: 24px;
}

.results-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 24px;
    border: 1px solid var(--border);
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.results-header h2 {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
}

.results-header h2 svg {
    color: var(--accent);
}

.loading {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
}

.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.results-content {
    min-height: 450px;
}

.placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 450px;
    color: var(--text-secondary);
}

.placeholder svg {
    margin-bottom: 20px;
    opacity: 0.3;
}

.result-image-container {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.result-image-container img {
    width: 100%;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    box-shadow: 0 8px 32px var(--shadow);
}

.result-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 20px;
    padding: 20px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
}

.info-label {
    font-weight: 600;
    color: var(--text-secondary);
}

.info-value {
    font-weight: 700;
    color: var(--text-primary);
}

.result-actions {
    display: flex;
    gap: 12px;
}

.result-actions .btn {
    flex: 1;
}

/* Error Message */
.error-message {
    margin-top: 16px;
    padding: 16px 20px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--error);
    border-radius: var(--radius-md);
    color: var(--error);
    font-size: 14px;
    font-weight: 500;
}

/* Footer */
footer {
    text-align: center;
    padding: 32px 24px;
    color: var(--text-muted);
    font-size: 12px;
}

footer strong {
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 16px;
    }

    header {
        flex-direction: column;
        gap: 16px;
        padding: 16px;
    }

    .header-right {
        width: 100%;
        justify-content: space-between;
    }

    .settings-grid {
        grid-template-columns: 1fr;
    }

    .result-info {
        grid-template-columns: 1fr;
    }

    .result-actions {
        flex-direction: column;
    }

    .results-column {
        position: static;
    }
}

@media (max-width: 480px) {
    .header-left h1 {
        font-size: 22px;
    }

    .status-indicator,
    .queue-info {
        padding: 8px 12px;
        font-size: 12px;
    }

    .tab-btn {
        padding: 12px 16px;
        font-size: 13px;
    }

    .panel {
        padding: 16px;
    }
}