:root {
    --bg-primary: #0b0f19;
    --bg-secondary: #111827;
    --panel-bg: rgba(17, 24, 39, 0.6);
    --panel-border: rgba(255, 255, 255, 0.06);
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    --accent-blue: #0ea5e9;
    --accent-green: #10b981;
    --accent-orange: #f97316;
    --accent-red: #ef4444;
    --accent-purple: #8b5cf6;
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    min-height: 100vh;
    overflow-x: hidden;
}

/* App Layout */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Styling */
.sidebar {
    width: 260px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--panel-border);
    display: flex;
    flex-direction: column;
    padding: 24px;
    flex-shrink: 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 40px;
}

.brand-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent-orange), var(--accent-purple));
    display: flex;
    align-items: center;
    justify-content: center;
}

.brand-icon i {
    color: white;
    width: 20px;
    height: 20px;
}

.brand h2 {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(to right, #ffffff, #d1d5db);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex-grow: 1;
}

.nav-links a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.nav-links a:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.03);
}

.nav-links a.active {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.06);
    border-left: 3px solid var(--accent-orange);
    border-radius: 0 8px 8px 0;
}

.nav-links a i {
    width: 18px;
    height: 18px;
}

.sidebar-footer {
    margin-top: auto;
}

.status-indicator-card {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-dot.online {
    background-color: var(--accent-green);
    box-shadow: 0 0 8px var(--accent-green);
}

/* Main Workspace */
.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    padding: 32px;
    max-height: 100vh;
    overflow-y: auto;
}

.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.main-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary {
    background-color: var(--accent-green);
    color: white;
}

.btn-primary:hover {
    background-color: #0d9488;
    transform: translateY(-1px);
}

.btn-danger {
    background-color: var(--accent-red);
    color: white;
}

.btn-danger:hover {
    background-color: #dc2626;
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--panel-border);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.08);
}

.btn i {
    width: 16px;
    height: 16px;
}

/* Metrics Section */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.metric-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.2s ease;
}

.metric-card:hover {
    border-color: rgba(255, 255, 255, 0.12);
}

.metric-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: block;
    margin-bottom: 6px;
}

.metric-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: white;
}

.metric-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.metric-icon.blue { background-color: rgba(14, 165, 233, 0.1); color: var(--accent-blue); }
.metric-icon.green { background-color: rgba(16, 185, 129, 0.1); color: var(--accent-green); }
.metric-icon.orange { background-color: rgba(249, 115, 22, 0.1); color: var(--accent-orange); }
.metric-icon.purple { background-color: rgba(139, 92, 246, 0.1); color: var(--accent-purple); }

/* Panels layout */
.workspace-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 24px;
    flex-grow: 1;
    min-height: 0; /* Important for scroll overflow in flex layouts */
}

.panel {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    backdrop-filter: blur(12px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.panel-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--panel-border);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.panel-header h2 {
    font-size: 1.15rem;
    font-weight: 600;
}

/* Category Filter Pills */
.filter-pills {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.pill {
    padding: 6px 12px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--panel-border);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.pill:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.05);
}

.pill.active {
    color: white;
    background-color: var(--accent-orange);
    border-color: var(--accent-orange);
}

/* Lists and Cards */
.logs-list {
    flex-grow: 1;
    overflow-y: auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.log-card {
    background-color: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    padding: 18px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.log-card:hover {
    background-color: rgba(255, 255, 255, 0.02);
    border-color: rgba(255, 255, 255, 0.12);
    transform: translateY(-1px);
}

.log-card.selected {
    background-color: rgba(249, 115, 22, 0.03);
    border-color: rgba(249, 115, 22, 0.3);
}

.card-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.meta-info {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    gap: 12px;
}

.badge {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* Badge colors */
.badge.progress { background-color: rgba(14, 165, 233, 0.12); color: #38bdf8; }
.badge.safety { background-color: rgba(249, 115, 22, 0.12); color: #fb923c; }
.badge.qa_qc { background-color: rgba(16, 185, 129, 0.12); color: #34d399; }
.badge.materials { background-color: rgba(139, 92, 246, 0.12); color: #a78bfa; }
.badge.unknown { background-color: rgba(107, 114, 128, 0.12); color: #9ca3af; }

.badge.status-draft { background-color: rgba(245, 158, 11, 0.1); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.2); }
.badge.status-approved { background-color: rgba(16, 185, 129, 0.1); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.2); }
.badge.status-rejected { background-color: rgba(239, 68, 68, 0.1); color: #f87171; border: 1px solid rgba(239, 68, 68, 0.2); }

.card-body {
    font-size: 0.88rem;
    line-height: 1.45;
    color: var(--text-primary);
}

.summary-preview {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    background-color: rgba(255, 255, 255, 0.01);
    padding: 8px 12px;
    border-radius: 6px;
    border-left: 2px solid var(--panel-border);
}

/* Empty State / Spinner */
.empty-state, .empty-editor-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    text-align: center;
    color: var(--text-secondary);
    flex-grow: 1;
}

.placeholder-icon {
    width: 64px;
    height: 64px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.empty-state h3, .empty-editor-state h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: white;
}

.empty-state p, .empty-editor-state p {
    font-size: 0.85rem;
    max-width: 280px;
    line-height: 1.4;
}

.spinner {
    width: 28px;
    height: 28px;
    border: 3px solid rgba(255, 255, 255, 0.05);
    border-top: 3px solid var(--accent-orange);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 16px;
}

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

/* Verification Editor Form */
.editor-panel {
    overflow-y: auto;
    padding: 24px;
}

.editor-header {
    border-bottom: 1px solid var(--panel-border);
    padding-bottom: 16px;
    margin-bottom: 20px;
}

.editor-header h2 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.original-msg-block {
    background-color: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    padding: 14px;
    margin-bottom: 20px;
    font-size: 0.85rem;
    line-height: 1.45;
}

.original-msg-block span {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-input, select, textarea {
    width: 100%;
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    padding: 10px 12px;
    font-family: var(--font-sans);
    font-size: 0.88rem;
    color: white;
    outline: none;
    transition: border-color 0.2s ease;
}

.form-input:focus, select:focus, textarea:focus {
    border-color: rgba(255, 255, 255, 0.2);
}

textarea {
    resize: vertical;
    min-height: 80px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.checkbox-label input {
    width: 16px;
    height: 16px;
    accent-color: var(--accent-orange);
}

.editor-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    border-top: 1px solid var(--panel-border);
    padding-top: 20px;
    margin-top: 24px;
}