/**
 * Models Page Styles
 * AI Models marketplace with left sidebar filters
 */

/* ==========================================================================
   Page Container
   ========================================================================== */
.models-wrapper {
    display: flex;
    width: 100%;
    min-height: calc(100vh - 64px);
}

/* ==========================================================================
   Left Sidebar
   ========================================================================== */
.models-sidebar {
    width: 280px;
    flex-shrink: 0;
    border-right: 1px solid var(--border);
    background-color: var(--muted-bg);
    padding: 0;
    position: sticky;
    top: 64px;
    height: calc(100vh - 64px);
    overflow-y: auto;
}

.models-sidebar::-webkit-scrollbar {
    width: 6px;
}

.models-sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.models-sidebar::-webkit-scrollbar-thumb {
    background-color: var(--border);
    border-radius: 3px;
}

.models-sidebar::-webkit-scrollbar-thumb:hover {
    background-color: var(--muted-text);
}

.sidebar-section {
    border-bottom: 1px solid var(--border);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    cursor: pointer;
    transition: background-color 0.15s;
}

.sidebar-header:hover {
    background-color: var(--hover-bg);
}

.sidebar-header-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.sidebar-header-title svg {
    width: 16px;
    height: 16px;
    color: var(--muted-text);
}

.sidebar-header-title span:hover {
    text-decoration: underline;
}

.sidebar-chevron {
    width: 16px;
    height: 16px;
    color: var(--muted-text);
    transition: transform 0.2s;
}

.sidebar-section.open .sidebar-chevron {
    transform: rotate(90deg);
}

.sidebar-content {
    padding: 0 16px 16px 42px;
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    font-size: 13px;
    color: var(--muted-text);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s;
    width: 100%;
    text-align: left;
    background: none;
    border: none;
}

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

.sidebar-item.active {
    background-color: var(--primary-light);
    color: var(--primary);
    font-weight: 500;
}

.sidebar-item .check-icon {
    width: 16px;
    height: 16px;
    margin-left: auto;
    opacity: 0;
}

.sidebar-item.active .check-icon {
    opacity: 1;
}

.sidebar-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--muted-text);
    flex-shrink: 0;
}

/* ==========================================================================
   Right Content Area
   ========================================================================== */
.models-main {
    flex: 1;
    min-width: 0;
    padding: 24px;
}

.models-header {
    margin-bottom: 24px;
}

.models-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.models-subtitle {
    color: var(--muted-text);
    font-size: 15px;
}

/* ==========================================================================
   Search and Sort Bar
   ========================================================================== */
.models-toolbar {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
    align-items: center;
}

.models-search-wrapper {
    position: relative;
    flex: 1;
    min-width: 280px;
    max-width: 400px;
}

.models-search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--muted-text);
    pointer-events: none;
}

.models-search-input {
    width: 100%;
    height: 44px;
    padding: 10px 12px 10px 44px;
    background-color: var(--background);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-primary);
    transition: all 0.15s;
}

.models-search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.models-search-input::placeholder {
    color: var(--muted-text);
}

.models-sort-select {
    height: 44px;
    padding: 10px 36px 10px 12px;
    background-color: var(--background);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-primary);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    transition: all 0.15s;
}

.models-sort-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* ==========================================================================
   Models Grid
   ========================================================================== */
.models-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 16px;
}

@media (min-width: 640px) {
    .models-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .models-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1280px) {
    .models-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ==========================================================================
   Model Card
   ========================================================================== */
.model-card {
    display: flex;
    flex-direction: column;
    background-color: var(--background);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.2s;
}

.model-card:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.model-card-header {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
}

.model-provider-icon {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    background-color: var(--muted-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.model-provider-img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.model-provider-initial {
    font-size: 20px;
    font-weight: 600;
    color: var(--muted-text);
}

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

.model-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

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

.model-description {
    padding: 0 16px;
    font-size: 13px;
    color: var(--muted-text);
    line-height: 1.5;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.model-card-body {
    padding: 0 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

/* ==========================================================================
   Badges
   ========================================================================== */
.model-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    font-weight: 500;
    padding: 4px 8px;
    background-color: var(--primary-light);
    color: var(--primary);
    border-radius: 4px;
}

.model-badge-free {
    background-color: rgba(16, 185, 129, 0.1);
    color: #10b981;
}

.model-badge svg {
    width: 14px;
    height: 14px;
}

/* ==========================================================================
   Modalities
   ========================================================================== */
.model-modalities {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 0 16px 16px;
}

.model-modality {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    font-weight: 500;
    padding: 4px 8px;
    background-color: var(--muted-bg);
    color: var(--muted-text);
    border-radius: 4px;
}

.model-modality svg {
    width: 12px;
    height: 12px;
}

/* ==========================================================================
   Pricing Info
   ========================================================================== */
.model-pricing {
    display: flex;
    gap: 16px;
    padding: 0 16px 16px;
    border-bottom: 1px solid var(--border);
}

.model-price-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.model-price-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--muted-text);
}

.model-price-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

/* ==========================================================================
   Card Footer / Buttons
   ========================================================================== */
.model-card-footer {
    display: flex;
    gap: 8px;
    padding: 16px;
}

.model-btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 12px;
    font-size: 13px;
    font-weight: 500;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.15s;
    cursor: pointer;
}

.model-btn-primary {
    background-color: var(--text-primary);
    color: var(--background);
    border: none;
}

.model-btn-primary:hover {
    opacity: 0.9;
}

.model-btn-secondary {
    background-color: var(--muted-bg);
    color: var(--text-primary);
    border: none;
}

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

.model-btn-icon {
    width: 16px;
    height: 16px;
}

/* ==========================================================================
   Empty State
   ========================================================================== */
.models-empty {
    text-align: center;
    padding: 64px 32px;
}

.models-empty-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    color: var(--muted-text);
    opacity: 0.5;
}

.models-empty-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.models-empty-message {
    color: var(--muted-text);
    margin-bottom: 16px;
}

/* ==========================================================================
   Load More
   ========================================================================== */
.models-load-more {
    display: flex;
    justify-content: center;
    margin-top: 32px;
}

.models-load-more-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 500;
    background-color: var(--background);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.15s;
}

.models-load-more-btn:hover {
    background-color: var(--muted-bg);
}

.models-load-more-btn svg {
    width: 20px;
    height: 20px;
}

/* ==========================================================================
   Results Count
   ========================================================================== */
.models-results {
    font-size: 14px;
    color: var(--muted-text);
    margin-bottom: 16px;
}

.models-results strong {
    color: var(--text-primary);
}

/* ==========================================================================
   Responsive Adjustments
   ========================================================================== */
@media (max-width: 768px) {
    .models-sidebar {
        display: none;
    }
    
    .models-main {
        padding: 16px;
    }
    
    .models-toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .models-search-wrapper {
        max-width: none;
    }
    
    .models-sort-select {
        width: 100%;
    }
    
    .model-card-footer {
        flex-direction: column;
    }
    
    .model-btn {
        width: 100%;
    }
}

/* ==========================================================================
   Loading State
   ========================================================================== */
.models-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px;
}

.models-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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