/* Community Model Stacks Styles */

.stacks-action-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.stacks-filters {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.stacks-filters select {
    background: var(--card-bg-solid);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.55rem 0.85rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
}

.stacks-filters select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.btn-create-stack {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 1.2rem;
    background: var(--primary-color);
    border: none;
    border-radius: 10px;
    color: #fff;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-create-stack:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--primary-glow);
}

/* Grid */
.stacks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1rem;
}

.loading-state {
    grid-column: 1 / -1;
    padding: 2rem;
    text-align: center;
    color: var(--text-tertiary);
}

/* Stack Card */
.stack-card {
    background: var(--card-bg-solid);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 1.35rem;
    transition: border-color 0.2s, transform 0.2s;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.stack-card:hover {
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateY(-2px);
}

.stack-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.5rem;
}

.stack-card-title {
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
}

.stack-card-badge {
    font-size: 0.65rem;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 5px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    white-space: nowrap;
    flex-shrink: 0;
}

.stack-card-badge.coding { background: rgba(99, 102, 241, 0.12); color: #6366f1; }
.stack-card-badge.writing { background: rgba(236, 72, 153, 0.12); color: #ec4899; }
.stack-card-badge.data { background: rgba(16, 185, 129, 0.12); color: #10b981; }
.stack-card-badge.chatbot { background: rgba(245, 158, 11, 0.12); color: #f59e0b; }
.stack-card-badge.research { background: rgba(139, 92, 246, 0.12); color: #8b5cf6; }
.stack-card-badge.creative { background: rgba(244, 63, 94, 0.12); color: #f43f5e; }
.stack-card-badge.enterprise { background: rgba(59, 130, 246, 0.12); color: #3b82f6; }
.stack-card-badge.personal { background: rgba(107, 114, 128, 0.12); color: #6b7280; }

.stack-card-desc {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.stack-card-models {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.stack-model-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.45rem 0.7rem;
    background: var(--bg-color);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.stack-model-name {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stack-model-role {
    font-size: 0.7rem;
    color: var(--text-tertiary);
    font-style: italic;
}

.stack-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 0.6rem;
    border-top: 1px solid var(--border-color);
}

.stack-card-author {
    font-size: 0.72rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

.stack-card-stats {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.stack-stat {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.72rem;
    color: var(--text-tertiary);
    font-weight: 600;
}

.stack-stat svg {
    width: 13px;
    height: 13px;
}

.stack-card-cost {
    font-size: 0.75rem;
    font-weight: 700;
    font-family: 'Outfit', sans-serif;
    color: var(--text-secondary);
}

/* Like button */
.btn-like {
    background: none;
    border: none;
    cursor: pointer;
    padding: 2px;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.72rem;
    color: var(--text-tertiary);
    font-weight: 600;
    font-family: inherit;
    transition: color 0.2s;
}

.btn-like:hover, .btn-like.liked {
    color: #ef4444;
}

.btn-like svg {
    width: 14px;
    height: 14px;
}

/* Empty state */
.stacks-empty {
    text-align: center;
    padding: 3rem 1rem;
}

.empty-icon { font-size: 2.5rem; margin-bottom: 0.75rem; }
.stacks-empty h3 { font-family: 'Outfit', sans-serif; font-size: 1.1rem; font-weight: 700; color: var(--text-primary); margin-bottom: 0.4rem; }
.stacks-empty p { font-size: 0.85rem; color: var(--text-tertiary); }

/* Modal */
.stack-modal-overlay, .model-selector-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.stack-modal {
    background: var(--card-bg-solid);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.stack-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.stack-modal-header h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-tertiary);
    cursor: pointer;
    line-height: 1;
}

.stack-modal-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.modal-field {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.modal-field label {
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-tertiary);
}

.modal-field input, .modal-field textarea, .modal-field select {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0.65rem 0.9rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.88rem;
    font-weight: 500;
}

.modal-field input:focus, .modal-field textarea:focus, .modal-field select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.modal-field textarea {
    resize: vertical;
}

.modal-field-checkbox {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.modal-field-checkbox input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    background: var(--bg-color);
    cursor: pointer;
    display: grid;
    place-content: center;
}

.modal-field-checkbox input[type="checkbox"]:checked {
    border-color: var(--primary-color);
    background: var(--primary-color);
}

.modal-field-checkbox input[type="checkbox"]:checked::before {
    content: "";
    width: 10px;
    height: 10px;
    clip-path: polygon(14% 44%, 0 58%, 38% 100%, 100% 16%, 80% 0%, 38% 68%);
    background-color: #fff;
}

.modal-field-checkbox label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
}

.stack-models-list {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 0.5rem;
}

.stack-model-entry {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.7rem;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.stack-model-entry-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.stack-model-entry-name {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stack-model-entry-role {
    font-size: 0.7rem;
    color: var(--text-tertiary);
}

.btn-remove-model {
    background: none;
    border: none;
    color: #ef4444;
    cursor: pointer;
    font-size: 1.1rem;
    padding: 0.2rem;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.btn-remove-model:hover { opacity: 1; }

.btn-add-model {
    background: none;
    border: 1px dashed var(--border-color);
    border-radius: 8px;
    padding: 0.55rem;
    color: var(--primary-color);
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-add-model:hover {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.05);
}

.stack-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.6rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
}

.btn-cancel {
    padding: 0.55rem 1rem;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
}

.btn-publish {
    padding: 0.55rem 1.2rem;
    background: var(--primary-color);
    border: none;
    border-radius: 8px;
    color: #fff;
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-publish:hover {
    box-shadow: 0 4px 12px var(--primary-glow);
}

/* Model selector sub-modal */
.model-selector-modal {
    background: var(--card-bg-solid);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    width: 100%;
    max-width: 400px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
}

.model-selector-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.model-selector-header h4 {
    font-family: 'Outfit', sans-serif;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}

.model-selector-header input {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.82rem;
}

.model-selector-header input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.model-selector-field {
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.model-selector-field label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-tertiary);
}

.model-selector-field input {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.45rem 0.7rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.82rem;
}

.model-selector-field input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.model-selector-list {
    overflow-y: auto;
    max-height: 300px;
    padding: 0.5rem;
}

.model-selector-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.55rem 0.75rem;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s;
}

.model-selector-item:hover {
    background: rgba(99, 102, 241, 0.06);
}

.model-selector-item-name {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-primary);
}

.model-selector-item-provider {
    font-size: 0.7rem;
    color: var(--text-tertiary);
}

.model-selector-footer {
    padding: 0.75rem 1.25rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
}

@media (max-width: 768px) {
    .stacks-grid {
        grid-template-columns: 1fr;
    }
    .stacks-action-bar {
        flex-direction: column;
        align-items: stretch;
    }
    .btn-create-stack {
        justify-content: center;
    }
}