/* Agent Model Performance Tracker - Styles */

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --bg-hover: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border: #334155;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.3);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

.app {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.header-content h1 {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.header-actions {
    display: flex;
    gap: 0.75rem;
}

/* Buttons */
.btn {
    padding: 0.625rem 1.25rem;
    border-radius: 0.5rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    font-size: 0.875rem;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

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

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

.btn-lg {
    padding: 0.875rem 2rem;
    font-size: 1rem;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0.25rem;
    margin-bottom: 2rem;
    background: var(--bg-card);
    padding: 0.375rem;
    border-radius: 0.75rem;
    flex-wrap: wrap;
}

.tab {
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all 0.2s;
}

.tab:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.tab.active {
    background: var(--primary);
    color: white;
}

/* Tab Content */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    border-radius: 0.75rem;
    padding: 1.5rem;
    text-align: center;
    border: 1px solid var(--border);
}

.stat-value {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-light);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Charts Grid */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
}

.chart-card {
    background: var(--bg-card);
    border-radius: 0.75rem;
    padding: 1.5rem;
    border: 1px solid var(--border);
}

.chart-card h3 {
    margin-bottom: 1rem;
    font-size: 1rem;
    color: var(--text-secondary);
}

/* Models Grid */
.models-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1rem;
}

.model-card {
    background: var(--bg-card);
    border-radius: 0.75rem;
    padding: 1.5rem;
    border: 1px solid var(--border);
    transition: all 0.2s;
}

.model-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
}

.model-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.model-name {
    font-size: 1.25rem;
    font-weight: 600;
}

.model-provider {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.model-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--primary);
    color: white;
}

.model-badge.coding { background: #3b82f6; }
.model-badge.reasoning { background: #8b5cf6; }
.model-badge.creative { background: #ec4899; }
.model-badge.fast { background: #10b981; }

.model-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.model-stat {
    text-align: center;
    padding: 0.5rem;
    background: var(--bg-dark);
    border-radius: 0.5rem;
}

.model-stat-value {
    display: block;
    font-weight: 600;
    color: var(--primary-light);
}

.model-stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.model-actions {
    margin-top: 1rem;
    display: flex;
    gap: 0.5rem;
}

.model-actions .btn {
    flex: 1;
    padding: 0.5rem;
    font-size: 0.8rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    border-radius: 1rem;
    padding: 2rem;
    width: 100%;
    max-width: 480px;
    border: 1px solid var(--border);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.modal-content h3 {
    margin-bottom: 1.5rem;
}

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.375rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 0.9375rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.form-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

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

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.benchmark-form {
    background: var(--bg-card);
    border-radius: 0.75rem;
    padding: 2rem;
    max-width: 700px;
    border: 1px solid var(--border);
}

.benchmark-form .btn-lg {
    width: 100%;
    margin-top: 1rem;
}

/* Compare Section */
.compare-selector {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.model-select {
    flex: 1;
    min-width: 200px;
    padding: 0.75rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 1rem;
}

.vs {
    font-weight: 700;
    color: var(--primary);
    font-size: 1.25rem;
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.compare-card {
    background: var(--bg-card);
    border-radius: 0.75rem;
    padding: 1.5rem;
    border: 1px solid var(--border);
}

.compare-card h4 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.compare-card .winner {
    color: var(--success);
}

.compare-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
}

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

.compare-label {
    color: var(--text-secondary);
}

.compare-value {
    font-weight: 600;
}

.compare-value.better {
    color: var(--success);
}

.compare-value.worse {
    color: var(--danger);
}

/* Recommendations */
.use-case-selector {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 500px;
    margin-bottom: 2rem;
}

.use-case-selector label {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.use-case-selector select {
    padding: 0.875rem 1rem;
    font-size: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    color: var(--text-primary);
}

.recommendation-card {
    background: var(--bg-card);
    border-radius: 0.75rem;
    padding: 2rem;
    border: 1px solid var(--border);
    max-width: 600px;
}

.recommendation-card.empty {
    text-align: center;
    color: var(--text-muted);
    padding: 3rem;
}

.recommendation-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.recommendation-icon {
    font-size: 3rem;
}

.recommendation-title {
    font-size: 1.5rem;
    font-weight: 700;
}

.recommendation-subtitle {
    color: var(--text-secondary);
}

.recommendation-reasons {
    list-style: none;
    margin: 1.5rem 0;
}

.recommendation-reasons li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
}

.recommendation-reasons li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: bold;
}

.recommendation-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.rec-stat {
    text-align: center;
}

.rec-stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-light);
}

.rec-stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    box-shadow: var(--shadow);
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s;
    z-index: 1001;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast.success {
    border-color: var(--success);
    background: rgba(16, 185, 129, 0.1);
}

.toast.error {
    border-color: var(--danger);
    background: rgba(239, 68, 68, 0.1);
}

/* Footer */
footer {
    margin-top: 4rem;
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
}

footer a {
    color: var(--primary-light);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    .app {
        padding: 1rem;
    }

    header {
        flex-direction: column;
        align-items: flex-start;
    }

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

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

    .chart-card {
        min-width: 0;
    }

    .tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
    }

    .tab {
        white-space: nowrap;
        padding: 0.625rem 1rem;
    }

    .compare-selector {
        flex-direction: column;
    }

    .vs {
        margin: 0.5rem 0;
    }
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.empty-state h3 {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

/* Delete Button */
.btn-danger {
    background: transparent;
    color: var(--danger);
    border: 1px solid var(--danger);
}

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

/* ===== Use Case Hero Section ===== */
.use-case-hero {
    background: linear-gradient(135deg, var(--bg-card), var(--bg-hover));
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid var(--border);
    text-align: center;
}

.use-case-hero h2 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.use-case-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
    max-width: 900px;
    margin: 0 auto 1.5rem;
}

.use-case-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.25rem 1rem;
    background: var(--bg-dark);
    border: 2px solid var(--border);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-primary);
}

.use-case-btn:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
    transform: translateY(-2px);
}

.use-case-btn.active {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.2);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
}

.use-case-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.use-case-label {
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.use-case-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.quick-recommendation {
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-dark);
    border-radius: 12px;
    display: none;
    text-align: left;
    border: 1px solid var(--primary);
}

.quick-recommendation.visible {
    display: block;
    animation: slideIn 0.3s ease;
}

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

.quick-recommendation h3 {
    color: var(--primary-light);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.quick-recommendation .top-pick {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 8px;
    margin-bottom: 1rem;
}

.quick-recommendation .top-pick .model-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.quick-recommendation .top-pick .provider {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.quick-recommendation .top-pick .cost {
    margin-left: auto;
    font-size: 0.9rem;
    color: var(--success);
}

.quick-recommendation .alternatives {
    margin-top: 1rem;
}

.quick-recommendation .alternatives h4 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.quick-recommendation .alt-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.quick-recommendation .alt-chip {
    padding: 0.4rem 0.8rem;
    background: var(--bg-hover);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

@media (max-width: 600px) {
    .use-case-buttons {
        grid-template-columns: repeat(2, 1fr);
    }
}