/* =============================================================================
   Amby Tasks — Template Gallery  (amby-task-templates.css)
   Phase 3: Gallery UI, sidebar filter panel, detail sheet, instantiation modal.

   All selectors prefixed .att-* to prevent conflicts with .at-* task styles.
   Uses --at-* design tokens already declared in amby-tasks.css.

   Created: 2026-03-18
   ============================================================================= */

/* ── Panel layout ─────────────────────────────────────────────────────────── */

/* Ensure #panel-tasks is a flex column so att-panel can fill the same space  */
#panel-tasks {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
}

/* Template gallery panel — sibling of #at-detail, same sizing behaviour      */
.att-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
    background: var(--at-bg-alt);
}

/* ── Sidebar — template header (replaces .at-sidebar-header in template mode) */
.att-sidebar-header {
    padding: 14px 14px 10px;
    border-bottom: 1px solid var(--at-border);
    flex-shrink: 0;
}

.att-source-pills {
    display: flex;
    gap: 5px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.att-source-pill {
    font-family: var(--at-font-ui);
    font-size: 11px;
    font-weight: 500;
    padding: 4px 10px;
    border-radius: 20px;
    border: 1px solid var(--at-border);
    background: var(--at-white);
    color: var(--at-text-2);
    cursor: pointer;
    transition: all var(--at-t);
}
.att-source-pill:hover { border-color: var(--at-accent); color: var(--at-accent); }
.att-source-pill.att-active {
    background: var(--at-accent);
    border-color: var(--at-accent);
    color: #fff;
}

/* ── Sidebar — template list ─────────────────────────────────────────────── */
.att-tpl-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0;
}
.att-tpl-list::-webkit-scrollbar { width: 4px; }
.att-tpl-list::-webkit-scrollbar-thumb { background: var(--at-border-strong); border-radius: 2px; }

.att-tpl-card {
    margin: 2px 8px;
    padding: 10px 12px;
    border-radius: var(--at-r);
    border: 1px solid transparent;
    border-left: 3px solid transparent;
    cursor: pointer;
    transition: all var(--at-t);
    opacity: 0;
    animation: at-card-in 0.22s ease forwards;
}
.att-tpl-card:hover {
    background: var(--at-white);
    border-color: var(--at-border);
    box-shadow: var(--at-shadow-sm);
}
.att-tpl-card.att-tpl-selected {
    background: var(--at-white);
    border-color: var(--at-border);
    border-left-color: var(--at-accent) !important;
    box-shadow: var(--at-shadow-md);
}
.att-tpl-card--system    { border-left-color: var(--at-accent); }
.att-tpl-card--community { border-left-color: var(--at-green); }

.att-tpl-card-name {
    font-family: var(--at-font-display);
    font-size: 13px;
    font-weight: 600;
    color: var(--at-text-1);
    margin-bottom: 5px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.att-tpl-card-badges { display: flex; gap: 4px; flex-wrap: wrap; }

/* ── Sidebar — footer toggle groups ─────────────────────────────────────── */
.att-footer-tasks,
.att-footer-templates {
    display: flex;
    gap: 8px;
    width: 100%;
}
.att-footer-tasks .at-btn,
.att-footer-templates .at-btn { flex: 1; justify-content: center; }

/* Compact icon-only browse button */
.att-browse-btn {
    padding: 7px 12px !important;
    flex: 0 0 auto !important;
    font-size: 15px;
}

/* ── Gallery header ───────────────────────────────────────────────────────── */
.att-gallery-wrap {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow-y: auto;
}
.att-gallery-wrap::-webkit-scrollbar { width: 5px; }
.att-gallery-wrap::-webkit-scrollbar-thumb { background: var(--at-border-strong); border-radius: 3px; }

.att-gallery-header {
    padding: 24px 28px 16px;
    background: var(--at-white);
    border-bottom: 1px solid var(--at-border);
    flex-shrink: 0;
}
.att-gallery-title {
    font-family: var(--at-font-display);
    font-size: 22px;
    font-weight: 700;
    color: var(--at-text-1);
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.att-gallery-title i { color: var(--at-accent); font-size: 20px; }
.att-gallery-subtitle {
    font-size: 14px;
    color: var(--at-text-3);
    line-height: 1.5;
}

/* ── Gallery card grid ───────────────────────────────────────────────────── */
.att-gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
    gap: 16px;
    padding: 20px 28px 32px;
    align-content: start;
}

/* ── Gallery card ────────────────────────────────────────────────────────── */
.att-card {
    background: var(--at-white);
    border: 1px solid var(--at-border);
    border-radius: var(--at-r-lg);
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    cursor: pointer;
    transition: all var(--at-t);
    box-shadow: var(--at-shadow-sm);
    opacity: 0;
    animation: at-card-in 0.25s ease forwards;
}
.att-card:hover {
    border-color: var(--at-accent);
    box-shadow: var(--at-shadow-md);
    transform: translateY(-2px);
}

.att-card-top { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }

/* Badges */
.att-badge {
    font-family: var(--at-font-ui);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 2px 8px;
    border-radius: 4px;
    line-height: 1.5;
}
.att-badge--system {
    background: var(--at-accent-subtle);
    color: var(--at-accent-text);
    border: 1px solid rgba(45, 95, 132, 0.15);
}
.att-badge--community {
    background: var(--at-green-bg);
    color: var(--at-green);
    border: 1px solid var(--at-green-border);
}
.att-badge--category {
    background: var(--at-surface);
    color: var(--at-text-2);
    border: 1px solid var(--at-border);
    text-transform: none;
    font-weight: 500;
    font-size: 10.5px;
    letter-spacing: 0;
}

.att-card-name {
    font-family: var(--at-font-display);
    font-size: 15px;
    font-weight: 700;
    color: var(--at-text-1);
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.att-card-desc {
    font-size: 13px;
    color: var(--at-text-2);
    line-height: 1.55;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.att-card-tags { display: flex; gap: 5px; flex-wrap: wrap; }
.att-tag {
    font-family: var(--at-font-ui);
    font-size: 10.5px;
    padding: 2px 8px;
    border-radius: 20px;
    background: var(--at-purple-bg);
    color: var(--at-purple);
    border: 1px solid var(--at-purple-border);
    font-weight: 500;
}

.att-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--at-border);
    flex-wrap: wrap;
}
.att-card-meta-left { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }

.att-usage {
    font-size: 11px;
    color: var(--at-text-3);
    display: flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}

/* "Use Template" button on cards */
.att-use-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 14px;
    border-radius: 6px;
    font-family: var(--at-font-ui);
    font-size: 12px;
    font-weight: 600;
    background: var(--at-accent);
    color: #fff;
    border: none;
    cursor: pointer;
    transition: all var(--at-t);
    white-space: nowrap;
    flex-shrink: 0;
}
.att-use-btn:hover { background: var(--at-accent-hover); transform: translateY(-1px); }
.att-use-btn:active { transform: none; }

/* ── Empty / loading states ──────────────────────────────────────────────── */
.att-empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 40px;
    color: var(--at-text-3);
}
.att-empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.3;
}
.att-empty-state h3 {
    font-family: var(--at-font-display);
    font-size: 18px;
    font-weight: 600;
    color: var(--at-text-2);
    margin-bottom: 8px;
}
.att-empty-state p {
    font-size: 14px;
    max-width: 320px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ── Detail sheet ─────────────────────────────────────────────────────────── */
.att-detail-sheet {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    background: var(--at-bg-alt);
    animation: at-fade-in 0.2s ease;
}
.att-detail-sheet::-webkit-scrollbar { width: 5px; }
.att-detail-sheet::-webkit-scrollbar-thumb { background: var(--at-border-strong); border-radius: 3px; }

.att-sheet-header {
    padding: 18px 28px 16px;
    background: var(--at-white);
    border-bottom: 1px solid var(--at-border);
    flex-shrink: 0;
}
.att-sheet-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--at-accent);
    cursor: pointer;
    border: none;
    background: none;
    padding: 0;
    margin-bottom: 12px;
    font-family: var(--at-font-ui);
    font-weight: 500;
    transition: color var(--at-t);
}
.att-sheet-back:hover { color: var(--at-accent-hover); }

.att-sheet-title-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 8px;
}
.att-sheet-title {
    font-family: var(--at-font-display);
    font-size: 22px;
    font-weight: 700;
    color: var(--at-text-1);
    line-height: 1.2;
}
.att-sheet-badges { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 6px; }
.att-sheet-tags   { display: flex; gap: 5px; flex-wrap: wrap; }

.att-sheet-body {
    padding: 24px 28px 32px;
    flex: 1;
}

.att-sheet-section { margin-bottom: 24px; }

.att-sheet-label {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--at-text-3);
    margin-bottom: 8px;
}
.att-sheet-desc {
    font-size: 14px;
    color: var(--at-text-2);
    line-height: 1.65;
}
.att-sheet-prompt {
    background: var(--at-white);
    border: 1px solid var(--at-border);
    border-radius: var(--at-r);
    padding: 12px 16px;
    font-family: var(--at-font-mono);
    font-size: 12.5px;
    color: var(--at-accent-text);
    white-space: pre-wrap;
    line-height: 1.65;
    max-height: 220px;
    overflow-y: auto;
}
.att-sheet-prompt::-webkit-scrollbar { width: 4px; }
.att-sheet-prompt::-webkit-scrollbar-thumb { background: var(--at-border-strong); border-radius: 2px; }

.att-sheet-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--at-border);
    border: 1px solid var(--at-border);
    border-radius: var(--at-r);
    overflow: hidden;
}
.att-sheet-info-cell { background: var(--at-white); padding: 12px 16px; }
.att-sheet-info-label {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--at-text-3);
    margin-bottom: 4px;
}
.att-sheet-info-value {
    font-family: var(--at-font-mono);
    font-size: 12.5px;
    color: var(--at-text-1);
    font-weight: 500;
}

.att-sheet-footer {
    padding: 14px 28px;
    background: var(--at-white);
    border-top: 1px solid var(--at-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    gap: 12px;
}
.att-sheet-usage {
    font-size: 13px;
    color: var(--at-text-3);
    display: flex;
    align-items: center;
    gap: 6px;
}
.att-sheet-footer-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* "Revise" button — shows for contributor of own approved community template */
.att-revise-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: var(--at-r);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s, opacity 0.15s;
    background: transparent;
    border: 1px solid var(--at-border-strong);
    color: var(--at-text-2);
}
.att-revise-btn:hover:not(:disabled) {
    background: var(--at-surface);
    border-color: var(--at-accent);
    color: var(--at-accent);
}
.att-revise-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── Instantiation modal ─────────────────────────────────────────────────── */
.att-modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 8000;
    background: rgba(0, 0, 0, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: att-backdrop-in 0.18s ease;
}
@keyframes att-backdrop-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.att-modal {
    background: var(--at-white);
    border-radius: var(--at-r-lg);
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.22);
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: att-modal-in 0.22s ease;
}
@keyframes att-modal-in {
    from { opacity: 0; transform: scale(0.96) translateY(8px); }
    to   { opacity: 1; transform: none; }
}

.att-modal-header {
    padding: 20px 24px 16px;
    border-bottom: 1px solid var(--at-border);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.att-modal-title {
    font-family: var(--at-font-display);
    font-size: 18px;
    font-weight: 700;
    color: var(--at-text-1);
}
.att-modal-close {
    width: 30px;
    height: 30px;
    border-radius: 6px;
    background: none;
    border: 1px solid var(--at-border);
    color: var(--at-text-2);
    cursor: pointer;
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--at-t);
}
.att-modal-close:hover {
    background: var(--at-red-bg);
    border-color: var(--at-red-border);
    color: var(--at-red);
}

.att-modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px 24px 8px;
}
.att-modal-body::-webkit-scrollbar { width: 4px; }
.att-modal-body::-webkit-scrollbar-thumb { background: var(--at-border-strong); border-radius: 2px; }

/* Template source info banner inside modal */
.att-modal-tpl-banner {
    background: var(--at-surface);
    border: 1px solid var(--at-border);
    border-radius: var(--at-r);
    padding: 12px 16px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.att-modal-tpl-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--at-accent-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--at-accent);
    font-size: 16px;
    flex-shrink: 0;
}
.att-modal-tpl-name {
    font-family: var(--at-font-display);
    font-size: 14px;
    font-weight: 600;
    color: var(--at-text-1);
}
.att-modal-tpl-meta {
    font-size: 11.5px;
    color: var(--at-text-3);
    margin-top: 2px;
}

/* Read-only instructions preview inside modal */
.att-modal-preview { margin-top: 4px; margin-bottom: 20px; }
.att-modal-preview-label {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--at-text-3);
    margin-bottom: 8px;
}
.att-modal-prompt-preview {
    background: var(--at-surface);
    border: 1px solid var(--at-border);
    border-radius: var(--at-r);
    padding: 10px 14px;
    font-family: var(--at-font-mono);
    font-size: 11.5px;
    color: var(--at-text-2);
    white-space: pre-wrap;
    line-height: 1.6;
    max-height: 130px;
    overflow-y: auto;
}
.att-modal-prompt-preview::-webkit-scrollbar { width: 3px; }
.att-modal-prompt-preview::-webkit-scrollbar-thumb { background: var(--at-border-strong); border-radius: 2px; }

.att-modal-footer {
    padding: 14px 24px;
    border-top: 1px solid var(--at-border);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    flex-shrink: 0;
}

/* ── Publish modal: visibility radio + role picker ───────────────────────── */
.att-modal .at-pub-vis-radios {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 6px;
}
.att-modal .at-pub-vis-radio {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--at-text-1);
    cursor: pointer;
}
.att-modal .at-pub-vis-radio input[type="radio"] {
    accent-color: var(--at-accent);
    cursor: pointer;
}
.att-modal #at-pub-roles-picker {
    margin-top: 10px;
    padding: 10px 12px;
    background: var(--at-surface);
    border: 1px solid var(--at-border);
    border-radius: var(--at-r-md);
}
.att-modal #at-pub-roles-picker.at-pub-roles-error {
    border-color: var(--at-red-border, #e57373);
}
.att-modal .at-pub-roles-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 16px;
}
.att-modal .at-pub-role-option {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--at-text-1);
    cursor: pointer;
    white-space: nowrap;
}
.att-modal .at-pub-role-option input[type="checkbox"] {
    accent-color: var(--at-accent);
    cursor: pointer;
}

/* ── Dark theme overrides ─────────────────────────────────────────────────── */
body.dark-theme .att-card         { background: var(--at-surface); }
body.dark-theme .att-sheet-header { background: var(--at-surface); }
body.dark-theme .att-sheet-footer { background: var(--at-surface); }
body.dark-theme .att-gallery-header { background: var(--at-surface); }
body.dark-theme .att-modal        { background: var(--at-surface); }
body.dark-theme .att-modal-header { border-color: var(--at-border); }
body.dark-theme .att-modal-footer { border-color: var(--at-border); }
body.dark-theme .att-modal-tpl-banner { background: var(--at-bg); }
body.dark-theme .att-sheet-info-cell  { background: var(--at-bg); }
body.dark-theme .att-sheet-prompt     { background: var(--at-bg); }
body.dark-theme .att-modal-prompt-preview { background: var(--at-bg); }