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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #1e293b 0%, #334155 50%, #475569 100%);
    height: 100vh;
    overflow: hidden;
}

.dashboard {
    display: grid;
    grid-template-columns: 350px 1fr;
    grid-template-rows: 60px 1fr;
    height: 100vh;
    gap: 1px;
    background: #0f172a;
}

.header {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

.header .status {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #10b981;
    animation: pulse 2s infinite;
}

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

.sidebar {
    background: #1e293b;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.main-content {
    background: #f8fafc;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 1px;
    overflow: hidden;
}

.panel {
    background: white;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.panel-header {
    background: #f1f5f9;
    padding: 12px 20px;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 50px;
}

.panel-title {
    font-size: 1rem;
    font-weight: 600;
    color: #334155;
    display: flex;
    align-items: center;
    gap: 8px;
}

.panel-content {
    flex: 1;
    padding: 15px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

/* Sidebar Styles */
.config-section {
    padding: 20px;
    border-bottom: 1px solid #334155;
}

.config-title {
    color: #e2e8f0;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.config-group {
    margin-bottom: 15px;
    position: relative;
}

.config-group label {
    display: block;
    color: #cbd5e1;
    font-size: 0.85rem;
    margin-bottom: 5px;
}

.config-group input,
.config-group select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #475569;
    border-radius: 6px;
    background: #334155;
    color: #e2e8f0;
    font-size: 0.9rem;
}

.config-group input:focus,
.config-group select:focus {
    outline: none;
    border-color: #667eea;
    background: #3f4b5f;
}

.api-key-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
}

#geminiApiKey {
    flex-grow: 1;
}

#apiKeyLockBtn {
    background: transparent;
    border: 1px solid #475569;
    color: white;
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
}
#apiKeyLockBtn:hover {
    background: #475569;
}


.upload-zone {
    border: 2px dashed #475569;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    background: #334155;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 15px;
}

.upload-zone:hover {
    border-color: #667eea;
    background: #3f4b5f;
}

.upload-zone.dragover {
    border-color: #667eea;
    background: #4c5f7a;
}

.upload-icon {
    font-size: 2rem;
    margin-bottom: 10px;
    color: #94a3b8;
}

.file-info {
    background: #475569;
    padding: 10px;
    border-radius: 6px;
    margin: 10px 0;
    color: #e2e8f0;
    font-size: 0.85rem;
    display: none;
}

.btn {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn:disabled {
    background: #64748b;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-small {
    padding: 6px 12px;
    font-size: 0.8rem;
}

/* Panel Specific Styles */
.ocr-result-textarea {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    padding: 15px;
    font-family: 'SF Mono', Monaco, monospace;
    font-size: 0.85rem;
    line-height: 1.5;
    white-space: pre-wrap;
    overflow-y: auto;
    flex: 1;
    resize: vertical;
    width: 100%;
}

.solution-content {
    flex: 1;
    overflow-y: auto;
}

.solution-text {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    padding: 15px;
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 15px;
}

.code-actions {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
}

.code-btn {
    background: #475569;
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.75rem;
    transition: all 0.2s ease;
}

.code-btn:hover {
    background: #64748b;
}

.copy-btn {
    background: #3b82f6;
}

.copy-btn:hover {
    background: #2563eb;
}

.refresh-btn {
    background: #f59e0b;
}

.refresh-btn:hover {
    background: #d97706;
}

.code-display {
    background: #1e293b;
    color: #e2e8f0;
    padding: 15px;
    border-radius: 6px;
    font-family: 'SF Mono', Monaco, monospace;
    font-size: 0.8rem;
    line-height: 1.4;
    overflow-y: auto;
    flex: 1;
    white-space: pre-wrap;
}

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: #64748b;
    padding: 40px;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid #e2e8f0;
    border-top: 2px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.error {
    background: #fef2f2;
    color: #dc2626;
    padding: 15px;
    border-radius: 6px;
    border-left: 4px solid #ef4444;
    font-size: 0.9rem;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: #64748b;
    text-align: center;
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: 15px;
    opacity: 0.5;
}

.progress-bar {
    background: #e2e8f0;
    height: 4px;
    border-radius: 2px;
    overflow: hidden;
    margin: 10px 0;
}

.progress-fill {
    background: linear-gradient(90deg, #667eea, #764ba2);
    height: 100%;
    width: 0%;
    transition: width 0.3s ease;
}

.hidden {
    display: none !important;
}

/* Responsive */
@media (max-width: 1200px) {
    .dashboard {
        grid-template-columns: 300px 1fr;
    }
    
    .config-group label,
    .config-group input,
    .config-group select {
        font-size: 0.8rem;
    }
}

@media (max-width: 768px) {
    .dashboard {
        grid-template-columns: 1fr;
        grid-template-rows: 60px auto 1fr;
    }
    
    .sidebar {
        max-height: 250px;
    }
    
    .main-content {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto auto;
    }
}