/* ==================== 广告智能优化器样式 ==================== */

.optimizer-container {
    width: 100%;
    padding: var(--space-6) var(--space-4);
}

.optimizer-hidden {
    display: none !important;
}

.optimizer-file-input {
    display: none;
}

/* Header */
.optimizer-header {
    margin-bottom: var(--space-8);
}

.optimizer-title-row {
    display: flex;
    align-items: baseline;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.optimizer-title {
    font-family: var(--font-display, 'Plus Jakarta Sans', sans-serif);
    font-size: var(--text-3xl, 1.875rem);
    font-weight: 800;
    color: var(--color-text-primary, #111827);
    letter-spacing: -0.025em;
    margin: 0;
}

.optimizer-subtitle {
    font-size: var(--text-sm, 0.875rem);
    color: var(--color-text-muted, #9CA3AF);
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
}

/* Upload Section */
.optimizer-upload-section {
    margin-bottom: var(--space-6);
}

.optimizer-history-panel {
    margin-top: var(--space-5);
    border: 1px solid rgba(201, 143, 58, 0.18);
    border-radius: 18px;
    background:
        radial-gradient(circle at top right, rgba(255, 196, 118, 0.18), transparent 34%),
        linear-gradient(135deg, rgba(255, 248, 235, 0.98), rgba(255, 255, 255, 0.96));
    box-shadow: 0 18px 40px rgba(111, 78, 23, 0.08);
    overflow: hidden;
}

.optimizer-history-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-5) var(--space-6) var(--space-4);
    border-bottom: 1px solid rgba(201, 143, 58, 0.16);
}

.optimizer-history-eyebrow {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #b7791f;
    margin-bottom: 6px;
}

.optimizer-history-title,
.optimizer-history-empty-title {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-text-primary, #111827);
}

.optimizer-history-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 52px;
    height: 32px;
    padding: 0 12px;
    border-radius: 999px;
    background: rgba(255, 153, 0, 0.12);
    color: #b45309;
    font-size: 12px;
    font-weight: 700;
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
}

.optimizer-history-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
    padding: var(--space-5) var(--space-6) var(--space-6);
}

.optimizer-history-card {
    position: relative;
    min-width: 0;
    padding: var(--space-4);
    border-radius: 14px;
    border: 1px solid rgba(201, 143, 58, 0.16);
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(8px);
    cursor: pointer;
    transition: transform var(--duration-fast, 150ms), box-shadow var(--duration-fast, 150ms), border-color var(--duration-fast, 150ms);
}

.optimizer-history-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    pointer-events: none;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.85);
}

.optimizer-history-card:hover {
    transform: translateY(-2px);
    border-color: rgba(201, 143, 58, 0.32);
    box-shadow: 0 18px 32px rgba(111, 78, 23, 0.12);
}

.optimizer-history-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.optimizer-history-index {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 10px;
    background: linear-gradient(135deg, #ffb347, #ff8f1f);
    color: #fff;
    font-size: 12px;
    font-weight: 800;
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
}

.optimizer-history-time {
    font-size: 12px;
    color: var(--color-text-secondary, #6B7280);
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
}

.optimizer-history-file {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text-primary, #111827);
    line-height: 1.5;
    word-break: break-word;
    margin-bottom: var(--space-3);
}

.optimizer-history-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.optimizer-history-metrics span {
    display: inline-flex;
    align-items: center;
    padding: 5px 10px;
    border-radius: 999px;
    background: rgba(255, 153, 0, 0.08);
    color: #9a6700;
    font-size: 12px;
    font-weight: 600;
}

.optimizer-history-actions {
    font-size: 12px;
    line-height: 1.7;
    color: var(--color-text-secondary, #6B7280);
}

.optimizer-history-card-actions {
    margin-top: var(--space-4);
    display: flex;
    gap: var(--space-2);
}

.optimizer-history-restore-btn,
.optimizer-history-delete-btn {
    width: 100%;
    justify-content: center;
}

.optimizer-restore-focus {
    animation: optimizerRestorePulse 1.8s ease;
}

@keyframes optimizerRestorePulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 153, 0, 0.28);
    }
    35% {
        box-shadow: 0 0 0 14px rgba(255, 153, 0, 0.12);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(255, 153, 0, 0);
    }
}

.optimizer-history-empty {
    padding: var(--space-6);
}

.optimizer-history-empty p {
    margin: var(--space-2) 0 0;
    font-size: 13px;
    line-height: 1.7;
    color: var(--color-text-secondary, #6B7280);
}

.upload-dropzone {
    border: 2px dashed var(--color-border, #E5E7EB);
    border-radius: 16px;
    padding: var(--space-16) var(--space-8);
    text-align: center;
    transition: all var(--duration-normal, 300ms) var(--ease-out, ease-out);
    background: var(--color-surface, #fff);
    cursor: pointer;
}

.upload-dropzone:hover,
.upload-dropzone.dragover {
    border-color: var(--color-primary, #0066FF);
    background: var(--color-primary-light, #E6F0FF);
    transform: scale(1.005);
}

.upload-dropzone .upload-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-4);
    color: var(--color-primary, #0066FF);
    opacity: 0.7;
}

.upload-dropzone .upload-icon svg {
    width: 100%;
    height: 100%;
}

.upload-dropzone h3 {
    font-size: var(--text-xl, 1.25rem);
    font-weight: 700;
    color: var(--color-text-primary, #111827);
    margin: 0 0 var(--space-2);
}

.upload-dropzone p {
    color: var(--color-text-secondary, #6B7280);
    margin: 0 0 var(--space-2);
}

.upload-dropzone .upload-hint {
    font-size: var(--text-xs, 0.75rem);
    color: var(--color-text-muted, #9CA3AF);
    margin-bottom: var(--space-6);
}

/* Config Section */
.optimizer-config-section {
    background: var(--color-surface, #fff);
    border: 1px solid var(--color-border, #E5E7EB);
    border-radius: 12px;
    margin-bottom: var(--space-6);
    overflow: hidden;
}

.config-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4) var(--space-6);
    cursor: pointer;
    user-select: none;
    transition: background var(--duration-fast, 150ms);
}

.config-header:hover {
    background: rgba(0, 0, 0, 0.02);
}

.config-header h3 {
    font-size: var(--text-base, 1rem);
    font-weight: 600;
    color: var(--color-text-primary, #111827);
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.config-body {
    padding: 0 var(--space-6) var(--space-6);
    border-top: 1px solid var(--color-border, #E5E7EB);
}

.be-acos-section {
    padding: var(--space-4) 0;
    margin-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-border, #E5E7EB);
}

.be-acos-input-row label {
    display: block;
    font-weight: 700;
    font-size: var(--text-sm, 0.875rem);
    color: var(--color-text-primary, #111827);
    margin-bottom: var(--space-2);
}

.be-acos-field {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-1);
}

.be-acos-field span {
    font-weight: 600;
    color: var(--color-text-secondary, #6B7280);
}

.config-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-5) var(--space-6);
    padding-top: var(--space-4);
}

@media (max-width: 768px) {
    .config-grid {
        grid-template-columns: 1fr;
    }
}

.config-group label {
    display: block;
    font-weight: 600;
    font-size: var(--text-sm, 0.875rem);
    color: var(--color-text-primary, #111827);
    margin-bottom: var(--space-2);
}

.threshold-labels {
    display: flex;
    gap: 6px;
    margin-bottom: 4px;
}

.threshold-labels span {
    flex: 1;
    text-align: center;
    font-size: 11px;
    color: var(--color-text-muted, #9CA3AF);
    font-weight: 500;
}

.threshold-inputs {
    display: flex;
    gap: 6px;
}

.threshold-input {
    flex: 1;
    min-width: 0;
    padding: 6px 8px;
    border: 1px solid var(--color-border, #E5E7EB);
    border-radius: 6px;
    font-size: 13px;
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    text-align: center;
    transition: border-color var(--duration-fast, 150ms);
    background: var(--color-bg, #FAFAFA);
    color: var(--color-text-primary, #111827);
}

.threshold-input:focus {
    outline: none;
    border-color: var(--color-primary, #0066FF);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

.threshold-hint {
    display: block;
    font-size: var(--text-xs, 0.75rem);
    color: var(--color-text-muted, #9CA3AF);
    margin-top: var(--space-1);
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
}

.config-actions {
    display: flex;
    gap: var(--space-3);
    justify-content: flex-end;
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border, #E5E7EB);
    margin-top: var(--space-4);
}

/* File Info */
.optimizer-file-info {
    margin-bottom: var(--space-6);
}

.file-info-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4) var(--space-6);
    background: var(--color-surface, #fff);
    border: 1px solid var(--color-border, #E5E7EB);
    border-radius: 12px;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.file-info-left {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-primary, #0066FF);
}

.file-info-left strong {
    display: block;
    color: var(--color-text-primary, #111827);
    font-weight: 600;
}

.file-info-left span {
    font-size: var(--text-sm, 0.875rem);
    color: var(--color-text-secondary, #6B7280);
}

.file-info-actions {
    display: flex;
    gap: var(--space-3);
}

/* Results Section */
.optimizer-results-section {
    animation: fadeInUp var(--duration-normal, 300ms) var(--ease-out, ease-out);
}

/* Stats Cards */
.results-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

@media (max-width: 768px) {
    .results-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .optimizer-history-list {
        grid-template-columns: 1fr;
    }

    .optimizer-history-card-actions {
        flex-direction: column;
    }
}

.stat-card {
    position: relative;
    padding: var(--space-5) var(--space-6);
    border-radius: 12px;
    border: 1px solid var(--color-border, #E5E7EB);
    background: var(--color-surface, #fff);
    overflow: hidden;
}

.stat-card-value {
    font-size: var(--text-3xl, 1.875rem);
    font-weight: 800;
    font-family: var(--font-display, 'Plus Jakarta Sans', sans-serif);
    letter-spacing: -0.025em;
}

.stat-card-label {
    font-size: var(--text-sm, 0.875rem);
    color: var(--color-text-secondary, #6B7280);
    margin-top: var(--space-1);
}

.stat-card-icon {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    opacity: 0.15;
    color: currentColor;
}

.stat-card-icon svg {
    width: 32px;
    height: 32px;
}

.stat-total { border-left: 4px solid #0D47A1; }
.stat-total .stat-card-value { color: #0D47A1; }

.stat-suggested { border-left: 4px solid #2E7D32; }
.stat-suggested .stat-card-value { color: #2E7D32; }

.stat-skipped { border-left: 4px solid #E65100; }
.stat-skipped .stat-card-value { color: #E65100; }

.stat-coverage { border-left: 4px solid #6A1B9A; }
.stat-coverage .stat-card-value { color: #6A1B9A; }

/* Action Bar */
.results-action-bar {
    margin-bottom: var(--space-6);
    background: var(--color-surface, #fff);
    border: 1px solid var(--color-border, #E5E7EB);
    border-radius: 12px;
    padding: var(--space-4) var(--space-6);
}

.action-bar-title {
    font-size: var(--text-sm, 0.875rem);
    font-weight: 600;
    color: var(--color-text-secondary, #6B7280);
    margin-bottom: var(--space-3);
}

.action-bar-summary {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.action-summary-chip {
    display: inline-flex;
    align-items: center;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(13, 71, 161, 0.08);
    border: 1px solid rgba(13, 71, 161, 0.12);
    color: var(--color-text-secondary, #4B5563);
    font-size: var(--text-xs, 0.75rem);
    line-height: 1.4;
}

.action-bar-track {
    display: flex;
    height: 28px;
    border-radius: 6px;
    overflow: hidden;
    gap: 1px;
}

.action-segment {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    transition: opacity var(--duration-fast, 150ms);
    cursor: default;
}

.action-segment:hover {
    opacity: 0.85;
}

.action-segment.action-token {
    background: var(--action-color);
}

.segment-label {
    font-size: 11px;
    color: #fff;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
}

.action-bar-legend {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-top: var(--space-3);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-xs, 0.75rem);
    color: var(--color-text-secondary, #6B7280);
}

.legend-item.action-token {
    --legend-color: var(--action-color);
}

.legend-item::before {
    content: '';
    width: 10px;
    height: 10px;
    border-radius: 3px;
    background: var(--legend-color);
    flex-shrink: 0;
}

.action-token {
    --action-color: var(--color-text-secondary, #6B7280);
    --action-bg: rgba(148, 163, 184, 0.12);
}

.action-token-scale-up-strong {
    --action-color: #1B5E20;
    --action-bg: #E8F5E9;
}

.action-token-scale-up {
    --action-color: #2E7D32;
    --action-bg: #E8F5E9;
}

.action-token-optimize-up {
    --action-color: #0D47A1;
    --action-bg: #E3F2FD;
}

.action-token-explore {
    --action-color: #6A1B9A;
    --action-bg: #F3E5F5;
}

.action-token-hold {
    --action-color: #F57F17;
    --action-bg: #FFFDE7;
}

.action-token-reduce-bid {
    --action-color: #E65100;
    --action-bg: #FFF3E0;
}

.action-token-reduce {
    --action-color: #D84315;
    --action-bg: #FBE9E7;
}

.action-token-reduce-bid-heavy,
.action-token-pause {
    --action-color: #B71C1C;
    --action-bg: #FFEBEE;
}

.action-token-low-bid-catch {
    --action-color: #00838F;
    --action-bg: #E0F7FA;
}

/* Results Table */
.results-table-wrapper {
    background: var(--color-surface, #fff);
    border: 1px solid var(--color-border, #E5E7EB);
    border-radius: 12px;
    overflow: hidden;
}

.results-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--color-border, #E5E7EB);
    gap: var(--space-4);
    flex-wrap: wrap;
}

.results-filter {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.filter-select {
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--color-border, #E5E7EB);
    border-radius: 8px;
    font-size: var(--text-sm, 0.875rem);
    background: var(--color-bg, #FAFAFA);
    color: var(--color-text-primary, #111827);
    cursor: pointer;
}

.filter-select:focus {
    outline: none;
    border-color: var(--color-primary, #0066FF);
}

.results-table-container {
    overflow-x: auto;
    max-height: 600px;
    overflow-y: auto;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm, 0.875rem);
}

.results-table thead {
    position: sticky;
    top: 0;
    z-index: 2;
    background: var(--color-surface, #fff);
}

.results-table th {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    font-weight: 600;
    color: var(--color-text-secondary, #6B7280);
    border-bottom: 2px solid var(--color-border, #E5E7EB);
    white-space: nowrap;
    font-size: var(--text-xs, 0.75rem);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.results-table td {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--color-border, #E5E7EB);
    vertical-align: middle;
}

.results-table tr:hover {
    background: rgba(0, 102, 255, 0.03);
}

.results-table tr.row-excluded {
    opacity: 0.4;
    text-decoration: line-through;
}

.col-check { width: 40px; text-align: center; }
.col-entity { width: 100px; }
.col-name { min-width: 150px; max-width: 250px; }
.col-metrics { white-space: nowrap; }
.col-rates { white-space: nowrap; font-family: var(--font-mono, 'JetBrains Mono', monospace); font-size: 12px; }
.col-levels { white-space: nowrap; }
.col-action { white-space: nowrap; }
.col-advanced { white-space: nowrap; min-width: 80px; }
.col-changes { min-width: 180px; }

.adv-tag {
    display: inline-block;
    padding: 1px 5px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 700;
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    margin-right: 2px;
}

.adv-matthew-pos { background: #C8E6C9; color: #1B5E20; }
.adv-matthew-neg { background: #FFCDD2; color: #B71C1C; }
.adv-flywheel { background: #E3F2FD; color: #0D47A1; }

.adv-lifecycle-new { background: #F3E5F5; color: #6A1B9A; }
.adv-lifecycle-growing { background: #E3F2FD; color: #0D47A1; }
.adv-lifecycle-mature { background: #E8F5E9; color: #2E7D32; }
.adv-eff-good { background: #C8E6C9; color: #1B5E20; }
.adv-eff-mid { background: #FFF9C4; color: #F57F17; }
.adv-eff-bad { background: #FFCDD2; color: #B71C1C; }

.adv-confidence {
    font-size: 11px;
    font-weight: 600;
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
}

.entity-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    background: var(--color-primary-light, #E6F0FF);
    color: var(--color-primary, #0066FF);
}

/* Level Codes */
.level-code {
    display: inline-block;
    width: 26px;
    height: 20px;
    line-height: 20px;
    text-align: center;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 700;
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    margin-right: 2px;
}

.level-E1 { background: #C8E6C9; color: #1B5E20; }
.level-E2 { background: #DCEDC8; color: #33691E; }
.level-E3 { background: #FFF9C4; color: #F57F17; }
.level-E4 { background: #FFE0B2; color: #E65100; }
.level-E5 { background: #FFCDD2; color: #B71C1C; }

.action-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

.action-badge.action-token {
    background: var(--action-bg);
    color: var(--action-color);
}

.action-badge-severity-critical,
.action-badge-neg-exact {
    background: #FFEBEE;
    color: #B71C1C;
}

.action-badge-severity-high {
    background: #FFF3E0;
    color: #E65100;
}

.action-badge-severity-medium {
    background: #FFFDE7;
    color: #F57F17;
}

.action-badge-severity-low {
    background: #F1F8E9;
    color: #558B2F;
}

.action-badge-neg-phrase {
    background: #E3F2FD;
    color: #0D47A1;
}

.action-badge-positive {
    background: #E8F5E9;
    color: #2E7D32;
}

.metric-tone-success {
    color: #2E7D32;
    font-weight: 600;
}

.metric-tone-warning {
    color: #E65100;
    font-weight: 600;
}

.metric-tone-danger {
    color: #B71C1C;
    font-weight: 600;
}

.metric-tone-danger-strong {
    color: #B71C1C;
    font-weight: 700;
}

.st-meta-text {
    color: var(--color-text-muted, #9CA3AF);
}

.change-item {
    display: block;
    font-size: 12px;
    line-height: 1.6;
    color: var(--color-text-secondary, #6B7280);
}

.change-item del {
    color: var(--color-error, #EF4444);
    opacity: 0.7;
}

.change-item strong {
    color: var(--color-success, #10B981);
}

/* Pagination */
.results-pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-3) var(--space-6);
    border-top: 1px solid var(--color-border, #E5E7EB);
    flex-wrap: wrap;
    gap: var(--space-2);
}

.pagination-info {
    font-size: var(--text-sm, 0.875rem);
    color: var(--color-text-secondary, #6B7280);
}

.pagination-btns {
    display: flex;
    gap: var(--space-1);
    align-items: center;
}

.pagination-dots {
    padding: 0 var(--space-2);
    color: var(--color-text-muted, #9CA3AF);
}

/* Buttons (reuse existing project button styles where possible) */
.btn-success {
    background: var(--color-success, #10B981);
    color: #fff;
    border: none;
    padding: var(--space-2) var(--space-4);
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    transition: background var(--duration-fast, 150ms);
}

.btn-success:hover {
    background: #059669;
}

.btn-ghost {
    background: transparent;
    border: 1px solid var(--color-border, #E5E7EB);
    color: var(--color-text-secondary, #6B7280);
    padding: var(--space-1) var(--space-3);
    border-radius: 6px;
    cursor: pointer;
    font-size: var(--text-sm, 0.875rem);
}

.btn-ghost:hover {
    background: rgba(0, 0, 0, 0.04);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Tab Navigation */
.optimizer-tabs {
    display: flex;
    gap: var(--space-1);
    margin-bottom: var(--space-6);
    border-bottom: 2px solid var(--color-border, #E5E7EB);
    padding-bottom: 0;
    overflow-x: auto;
}

.opt-tab {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    border: none;
    background: transparent;
    color: var(--color-text-secondary, #6B7280);
    font-size: var(--text-sm, 0.875rem);
    font-weight: 600;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: all var(--duration-fast, 150ms);
    white-space: nowrap;
}

.opt-tab:hover {
    color: var(--color-primary, #0066FF);
    background: rgba(0, 102, 255, 0.04);
}

.opt-tab.active {
    color: var(--color-primary, #0066FF);
    border-bottom-color: var(--color-primary, #0066FF);
}

.opt-tab svg { width: 16px; height: 16px; }

.opt-tab-panel { display: none; }
.opt-tab-panel.active { display: block; animation: fadeInUp var(--duration-normal, 300ms) var(--ease-out, ease-out); }
.opt-tab-panel-hidden { display: none !important; }

/* Section titles */
.section-title {
    font-size: var(--text-xl, 1.25rem);
    font-weight: 700;
    color: var(--color-text-primary, #111827);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin: 0 0 var(--space-2);
}

.section-title svg { width: 20px; height: 20px; color: var(--color-primary, #0066FF); }

.section-desc {
    color: var(--color-text-secondary, #6B7280);
    margin: 0 0 var(--space-6);
}

/* Calculator */
.calc-container {
    background: var(--color-surface, #fff);
    border: 1px solid var(--color-border, #E5E7EB);
    border-radius: 12px;
    padding: var(--space-8);
}

.calc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.calc-input-group label {
    display: block;
    font-weight: 600;
    font-size: var(--text-sm, 0.875rem);
    color: var(--color-text-primary, #111827);
    margin-bottom: var(--space-1);
}

.calc-input {
    width: 100%;
    padding: var(--space-3);
    border: 1px solid var(--color-border, #E5E7EB);
    border-radius: 8px;
    font-size: var(--text-base, 1rem);
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    background: var(--color-bg, #FAFAFA);
    color: var(--color-text-primary, #111827);
}

.calc-input-compact {
    width: 100px;
    text-align: center;
}

.calc-input:focus {
    outline: none;
    border-color: var(--color-primary, #0066FF);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

.calc-hint {
    display: block;
    font-size: var(--text-xs, 0.75rem);
    color: var(--color-text-muted, #9CA3AF);
    margin-top: var(--space-1);
}

.calc-result {
    margin-top: var(--space-6);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
}

@media (max-width: 768px) {
    .calc-result { grid-template-columns: 1fr; }
}

.calc-result-card {
    background: linear-gradient(135deg, #E8F5E9 0%, #E3F2FD 100%);
    border-radius: 12px;
    padding: var(--space-6);
    text-align: center;
}

.calc-result-label {
    font-size: var(--text-sm, 0.875rem);
    font-weight: 600;
    color: var(--color-text-secondary, #6B7280);
    margin-bottom: var(--space-2);
}

.calc-result-value {
    font-size: 3rem;
    font-weight: 800;
    font-family: var(--font-display, 'Plus Jakarta Sans', sans-serif);
    letter-spacing: -0.025em;
}

.calc-result-detail {
    margin-top: var(--space-3);
    font-size: var(--text-sm, 0.875rem);
    color: var(--color-text-secondary, #6B7280);
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
}

.calc-result-guide {
    background: var(--color-surface, #fff);
    border: 1px solid var(--color-border, #E5E7EB);
    border-radius: 12px;
    padding: var(--space-6);
}

.calc-result-guide h4 {
    font-size: var(--text-base, 1rem);
    font-weight: 700;
    margin: 0 0 var(--space-4);
}

.guide-row {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) 0;
    font-size: var(--text-sm, 0.875rem);
    border-bottom: 1px solid var(--color-border, #E5E7EB);
}

.guide-row:last-child { border-bottom: none; }

.guide-level {
    display: inline-block;
    width: 30px;
    text-align: center;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 700;
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
}

/* Logic Page */
.logic-container {
    background: var(--color-surface, #fff);
    border: 1px solid var(--color-border, #E5E7EB);
    border-radius: 12px;
    padding: var(--space-8);
}

.logic-section {
    margin-bottom: var(--space-8);
}

.logic-section h4 {
    font-size: var(--text-lg, 1.125rem);
    font-weight: 700;
    margin: 0 0 var(--space-4);
    color: var(--color-text-primary, #111827);
}

.logic-dims {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-4);
}

.dim-card {
    padding: var(--space-4);
    border: 1px solid var(--color-border, #E5E7EB);
    border-radius: 10px;
    background: var(--color-bg, #FAFAFA);
    font-size: var(--text-sm, 0.875rem);
    line-height: 1.6;
}

.dim-hint {
    display: block;
    margin-top: var(--space-2);
    font-size: var(--text-xs, 0.75rem);
    color: var(--color-primary, #0066FF);
    font-weight: 600;
}

.logic-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm, 0.875rem);
}

.logic-table th, .logic-table td {
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border, #E5E7EB);
    text-align: center;
}

.logic-table th {
    background: var(--color-bg, #FAFAFA);
    font-weight: 600;
}

.logic-table td:first-child {
    text-align: left;
    font-weight: 600;
}

.actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-3);
}

.action-card {
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border, #E5E7EB);
    border-radius: 8px;
    background: var(--color-surface, #fff);
}

.action-card.action-token {
    border-left: 4px solid var(--action-color);
}

.action-card.action-token .action-card-header strong {
    color: var(--action-color);
}

.action-card-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-1);
}

.action-card-icon { font-size: 18px; }

.action-card-body {
    font-size: var(--text-xs, 0.75rem);
    color: var(--color-text-secondary, #6B7280);
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
}

.glossary-container {
    display: grid;
    gap: var(--space-8);
}

.glossary-tab-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-4);
}

.glossary-tab-card,
.glossary-definition-item {
    padding: var(--space-4) var(--space-5);
    border: 1px solid var(--color-border, #E5E7EB);
    border-radius: 12px;
    background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(250,250,250,0.94));
}

.glossary-tab-card-head {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
    color: var(--color-text-primary, #111827);
}

.glossary-tab-card-head svg {
    width: 18px;
    height: 18px;
    color: var(--color-primary, #0066FF);
}

.glossary-tab-card strong,
.glossary-definition-item strong {
    font-size: var(--text-base, 1rem);
    font-weight: 700;
}

.glossary-tab-card p,
.glossary-definition-item p {
    margin: 0;
    color: var(--color-text-secondary, #6B7280);
    line-height: 1.7;
    font-size: var(--text-sm, 0.875rem);
}

.glossary-definition-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-3);
}

/* SOP Timeline */
.sop-container {
    background: var(--color-surface, #fff);
    border: 1px solid var(--color-border, #E5E7EB);
    border-radius: 12px;
    padding: var(--space-8);
}

.sop-timeline {
    position: relative;
    padding-left: 48px;
}

.sop-timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-primary, #0066FF), var(--color-border, #E5E7EB));
}

.sop-step {
    position: relative;
    margin-bottom: var(--space-6);
}

.sop-step-num {
    position: absolute;
    left: -48px;
    top: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-primary, #0066FF);
    color: #fff;
    font-size: var(--text-sm, 0.875rem);
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.sop-step-content h4 {
    font-size: var(--text-base, 1rem);
    font-weight: 700;
    color: var(--color-text-primary, #111827);
    margin: 0 0 var(--space-2);
}

.sop-step-content p {
    color: var(--color-text-secondary, #6B7280);
    margin: 0 0 var(--space-2);
    font-size: var(--text-sm, 0.875rem);
}

.sop-tips {
    background: var(--color-bg, #FAFAFA);
    border: 1px solid var(--color-border, #E5E7EB);
    border-radius: 8px;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-xs, 0.75rem);
    color: var(--color-text-secondary, #6B7280);
    line-height: 1.6;
}

/* Search Terms */
.search-terms-container {
    background: var(--color-surface, #fff);
    border: 1px solid var(--color-border, #E5E7EB);
    border-radius: 12px;
    padding: var(--space-8);
}

.search-terms-empty {
    text-align: center;
    padding: var(--space-12);
    color: var(--color-text-muted, #9CA3AF);
}

.st-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

@media (max-width: 768px) {
    .st-stats { grid-template-columns: repeat(2, 1fr); }
}

.st-section {
    overflow-x: auto;
}

.st-section-spaced {
    margin-top: var(--space-4);
}

.st-section-spaced-lg {
    margin-top: var(--space-6);
}

.st-section h4 {
    font-size: var(--text-base, 1rem);
    font-weight: 700;
    margin: 0 0 var(--space-4);
    color: var(--color-text-primary, #111827);
}

/* Dark theme overrides */
[data-theme="dark"] .upload-dropzone {
    background: var(--color-surface, #1E293B);
    border-color: var(--color-border, #334155);
}

[data-theme="dark"] .upload-dropzone:hover,
[data-theme="dark"] .upload-dropzone.dragover {
    background: rgba(0, 102, 255, 0.08);
    border-color: var(--color-primary, #0066FF);
}

[data-theme="dark"] .optimizer-history-panel {
    background:
        radial-gradient(circle at top right, rgba(255, 196, 118, 0.14), transparent 34%),
        linear-gradient(135deg, rgba(30, 41, 59, 0.96), rgba(15, 23, 42, 0.98));
    border-color: rgba(255, 196, 118, 0.14);
}

[data-theme="dark"] .optimizer-history-header {
    border-bottom-color: rgba(255, 196, 118, 0.12);
}

[data-theme="dark"] .optimizer-history-card {
    background: rgba(15, 23, 42, 0.74);
    border-color: rgba(255, 196, 118, 0.12);
}

[data-theme="dark"] .optimizer-history-title,
[data-theme="dark"] .optimizer-history-empty-title,
[data-theme="dark"] .optimizer-history-file {
    color: var(--color-text-primary, #F1F5F9);
}

[data-theme="dark"] .threshold-input {
    background: var(--color-bg, #0F172A);
    border-color: var(--color-border, #334155);
    color: var(--color-text-primary, #F1F5F9);
}

[data-theme="dark"] .filter-select {
    background: var(--color-bg, #0F172A);
    border-color: var(--color-border, #334155);
    color: var(--color-text-primary, #F1F5F9);
}

[data-theme="dark"] .results-table tr:hover {
    background: rgba(0, 102, 255, 0.06);
}

[data-theme="dark"] .entity-badge {
    background: rgba(0, 102, 255, 0.15);
}

[data-theme="dark"] .level-E1 { background: rgba(200, 230, 201, 0.15); color: #81C784; }
[data-theme="dark"] .level-E2 { background: rgba(220, 237, 200, 0.15); color: #AED581; }
[data-theme="dark"] .level-E3 { background: rgba(255, 249, 196, 0.15); color: #FFF176; }
[data-theme="dark"] .level-E4 { background: rgba(255, 224, 178, 0.15); color: #FFB74D; }
[data-theme="dark"] .level-E5 { background: rgba(255, 205, 210, 0.15); color: #EF9A9A; }

[data-theme="dark"] .calc-container,
[data-theme="dark"] .logic-container,
[data-theme="dark"] .sop-container,
[data-theme="dark"] .glossary-tab-card,
[data-theme="dark"] .glossary-definition-item {
    background: var(--color-surface, #1E293B);
}

[data-theme="dark"] .calc-input {
    background: var(--color-bg, #0F172A);
    border-color: var(--color-border, #334155);
    color: var(--color-text-primary, #F1F5F9);
}

[data-theme="dark"] .calc-result-card {
    background: linear-gradient(135deg, rgba(30,41,59,0.8), rgba(30,41,59,0.6));
}

[data-theme="dark"] .dim-card,
[data-theme="dark"] .sop-tips {
    background: var(--color-bg, #0F172A);
    border-color: var(--color-border, #334155);
}

[data-theme="dark"] .logic-table th {
    background: var(--color-bg, #0F172A);
}

[data-theme="dark"] .action-card {
    background: var(--color-bg, #0F172A);
    border-color: var(--color-border, #334155);
}

[data-theme="dark"] .glossary-tab-card p,
[data-theme="dark"] .glossary-definition-item p {
    color: var(--color-text-secondary, #CBD5E1);
}

/* ── Optimizer Files Section ── */
.optimizer-files-section {
    margin-top: var(--space-4, 16px);
    padding: 18px 20px;
    border-radius: 12px;
    background: var(--color-surface, #fff);
    border: 1px solid var(--color-border, #e5e7eb);
}

.files-section-title {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 4px;
}

.files-section-hint {
    font-size: 12px;
    color: var(--color-error, #EF4444);
    font-weight: 500;
    margin-bottom: 14px;
}

.file-row {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 14px;
    border: 1px solid var(--color-border, #e5e7eb);
    border-radius: 10px;
    margin-bottom: 8px;
    background: var(--color-bg, #fafafa);
}

.file-row-info {
    flex: 1;
    min-width: 0;
}

.file-row-name {
    font-size: 13px;
    font-weight: 600;
    word-break: break-all;
}

.file-row-meta {
    font-size: 11px;
    color: var(--color-text-secondary, #6B7280);
    margin-top: 2px;
}

.file-row-remaining {
    font-size: 11px;
    font-weight: 600;
    color: var(--color-warning, #F59E0B);
    white-space: nowrap;
}

.file-row-actions .btn {
    font-size: 12px;
    padding: 6px 14px;
}

/* ── Optimizer Loading Overlay ── */
.optimizer-loading-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 18px;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(3px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.optimizer-loading-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.optimizer-loading-spinner {
    width: 52px;
    height: 52px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top-color: #ff9900;
    border-radius: 50%;
    animation: opt-spin 0.8s linear infinite;
}

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

.optimizer-loading-text {
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

/* ── Scope Section (Ad Type Selector) ── */
.scope-section {
    margin-top: 16px;
    padding: 20px;
    background: var(--color-surface, #fff);
    border: 1px solid var(--color-border, #e5e7eb);
    border-radius: 10px;
}

.scope-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.scope-header h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text-primary, #111827);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.scope-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

@media (max-width: 768px) {
    .scope-cards { grid-template-columns: 1fr; }
}

.scope-card {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    border: 2px solid var(--color-border, #e5e7eb);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.15s ease;
    user-select: none;
    background: var(--color-bg, #fafafa);
}

.scope-card:hover {
    border-color: #ff9900;
    background: #fff8f0;
}

.scope-card:has(input:checked) {
    border-color: #ff9900;
    background: #fff8f0;
    box-shadow: 0 0 0 1px #ff9900;
}

.scope-card input[type="checkbox"] {
    accent-color: #ff9900;
    width: 18px;
    height: 18px;
    margin-top: 2px;
    cursor: pointer;
    flex-shrink: 0;
}

.scope-card-body {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.scope-card-body strong {
    font-size: 14px;
    color: var(--color-text-primary, #111827);
}

.scope-card-body span {
    font-size: 12px;
    color: var(--color-text-muted, #9CA3AF);
    line-height: 1.4;
}

.start-analysis-bar {
    margin-top: 16px;
    text-align: center;
}

.btn-lg {
    padding: 12px 40px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 10px;
}

/* ── Search Term Sheet Filter ── */
.st-sheet-filter {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.st-filter-btn {
    padding: 8px 18px;
    border: 2px solid var(--color-border, #e5e7eb);
    border-radius: 8px;
    background: var(--color-surface, #fff);
    color: var(--color-text-secondary, #6b7280);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
}

.st-filter-btn:hover {
    border-color: #ff9900;
    color: #ff9900;
}

.st-filter-btn.active {
    background: #ff9900;
    border-color: #ff9900;
    color: #fff;
}

.btn-xs {
    font-size: 11px;
    padding: 3px 10px;
    border-radius: 4px;
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary, #6b7280);
    border: 1px solid var(--color-border, #e5e7eb);
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-ghost:hover {
    background: var(--color-primary-light, #e6f0ff);
    color: var(--color-primary, #0066ff);
    border-color: var(--color-primary, #0066ff);
}