/* Design Tools workspace — Asset Library + Tasks + Export */

.dt-wrap{max-width:1400px;margin:0 auto;padding:24px}
.dt-hero{background:linear-gradient(135deg,#1B2A4A,#33507e);color:#fff;border-radius:14px;padding:24px 28px;margin-bottom:18px}
.dt-hero h1{margin:0 0 6px;font-size:24px;display:flex;align-items:center;gap:10px}
.dt-hero p{margin:6px 0;opacity:.92;font-size:13.5px}

/* Tab nav */
.dt-tab-nav{display:flex;gap:4px;border-bottom:2px solid #e5e7eb;margin-bottom:18px;flex-wrap:wrap}
.dt-tab-btn{background:transparent;border:none;padding:10px 18px;font-size:14px;font-weight:600;color:#6b7280;cursor:pointer;border-bottom:3px solid transparent;margin-bottom:-2px;transition:all .12s;font-family:inherit}
.dt-tab-btn:hover{color:#1B2A4A;background:#f9fafb}
.dt-tab-btn.active{color:#1B2A4A;border-bottom-color:#D4A843}
.dt-tab-pane{display:none}
.dt-tab-pane.active{display:block}

/* Cards (overview + export) */
.dt-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px}
.dt-card{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:18px 20px;box-shadow:0 1px 3px rgba(0,0,0,.05)}
.dt-card h3{margin:0 0 10px;font-size:16px;color:#1B2A4A;display:flex;align-items:center;gap:8px}
.dt-card p{margin:8px 0;font-size:13.5px;color:#374151;line-height:1.6}
.dt-card ol{margin:10px 0;padding-left:22px;font-size:13.5px;color:#374151;line-height:1.7}
.dt-card ol b{color:#1B2A4A}

/* Buttons */
.dt-btn{display:inline-block;padding:8px 16px;background:#D4A843;color:#1B2A4A;text-decoration:none;font-weight:700;border-radius:6px;font-size:13.5px;border:none;cursor:pointer;margin:4px 4px 2px 0;font-family:inherit;transition:background .12s}
.dt-btn:hover{background:#e5b955}
.dt-btn.sec{background:#fff;color:#1B2A4A;border:1px solid #1B2A4A}
.dt-btn.sec:hover{background:#f3f4f6}
.dt-btn.danger{background:#dc2626;color:#fff}
.dt-btn.danger:hover{background:#b91c1c}
.dt-btn.sm{padding:5px 10px;font-size:12px}
.dt-tag{display:inline-block;padding:2px 8px;border-radius:99px;font-size:11px;font-weight:600;background:#eff6ff;color:#1d4ed8;margin-left:6px}

/* Toolbar */
.dt-toolbar{display:flex;gap:8px;align-items:center;margin-bottom:14px;flex-wrap:wrap}
.dt-input{padding:7px 10px;border:1px solid #d1d5db;border-radius:6px;font-size:13px;background:#fff;font-family:inherit;min-width:140px}
.dt-input:focus{outline:none;border-color:#2563eb;box-shadow:0 0 0 3px rgba(37,99,235,.15)}

/* Asset grid */
.dt-asset-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px;min-height:200px}
.dt-asset-card{background:#fff;border:1px solid #e5e7eb;border-radius:10px;overflow:hidden;cursor:pointer;transition:transform .12s,box-shadow .12s;display:flex;flex-direction:column}
.dt-asset-card:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,.08)}
.dt-asset-thumb{width:100%;aspect-ratio:1;background:#f9fafb;display:flex;align-items:center;justify-content:center;overflow:hidden;border-bottom:1px solid #f3f4f6}
.dt-asset-thumb img{width:100%;height:100%;object-fit:cover}
.dt-asset-thumb .dt-asset-icon{font-size:48px;color:#9ca3af}
.dt-asset-info{padding:10px 12px;font-size:12.5px}
.dt-asset-name{font-weight:600;color:#1B2A4A;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.4;margin-bottom:4px}
.dt-asset-meta{color:#6b7280;font-size:11px;display:flex;justify-content:space-between;align-items:center;gap:4px}
.dt-asset-tags{margin-top:6px;display:flex;flex-wrap:wrap;gap:3px}
.dt-asset-tag-chip{font-size:10px;background:#f3f4f6;color:#4b5563;padding:1px 6px;border-radius:99px}

/* Kanban */
.dt-kanban{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;min-height:400px}
@media(max-width:1100px){.dt-kanban{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.dt-kanban{grid-template-columns:1fr}}
.dt-kanban-col{background:#f9fafb;border-radius:10px;padding:12px;border:1px solid #e5e7eb}
.dt-kanban-col h4{margin:0 0 10px;font-size:13px;color:#374151;text-transform:uppercase;letter-spacing:.5px;display:flex;align-items:center;justify-content:space-between;font-weight:700}
.dt-count{background:#1B2A4A;color:#fff;border-radius:99px;padding:1px 8px;font-size:11px;font-weight:700;letter-spacing:0;text-transform:none}
.dt-kanban-list{display:flex;flex-direction:column;gap:8px;min-height:50px}
.dt-task-card{background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:10px 12px;cursor:grab;font-size:13px;box-shadow:0 1px 2px rgba(0,0,0,.04);transition:box-shadow .12s,transform .12s}
.dt-task-card:hover{box-shadow:0 4px 12px rgba(0,0,0,.08)}
.dt-task-card.dragging{opacity:.5;cursor:grabbing}
.dt-task-card.drop-target{border-color:#D4A843;background:#fffbeb}
.dt-task-card-title{font-weight:600;color:#1B2A4A;margin-bottom:6px;line-height:1.4}
.dt-task-meta{display:flex;gap:6px;flex-wrap:wrap;font-size:11px;color:#6b7280;align-items:center}
.dt-task-meta>*{display:inline-flex;align-items:center;gap:3px}
.dt-priority{padding:1px 7px;border-radius:99px;font-weight:600;font-size:10px}
.dt-priority-urgent{background:#fee2e2;color:#991b1b}
.dt-priority-high{background:#ffedd5;color:#9a3412}
.dt-priority-normal{background:#fef3c7;color:#92400e}
.dt-priority-low{background:#dcfce7;color:#166534}
.dt-due{font-weight:600}
.dt-due.overdue{color:#dc2626}
.dt-due.soon{color:#ea580c}
.dt-kanban-list.drop-over{background:#fef3c7;border-radius:6px}

/* Task modal */
.dt-modal-overlay{position:fixed;inset:0;background:rgba(15,23,42,.5);z-index:9999;display:flex;align-items:center;justify-content:center;padding:16px}
.dt-modal{background:#fff;border-radius:12px;padding:0;max-width:680px;width:100%;max-height:90vh;display:flex;flex-direction:column;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.dt-modal-header{padding:16px 22px;border-bottom:1px solid #e5e7eb;display:flex;align-items:center;gap:10px}
.dt-modal-header h3{margin:0;flex:1;font-size:17px;color:#1f2937}
.dt-modal-close{background:transparent;border:none;font-size:22px;cursor:pointer;color:#6b7280;line-height:1}
.dt-modal-close:hover{color:#dc2626}
.dt-modal-body{padding:18px 22px;overflow-y:auto;flex:1}
.dt-form-row{margin-bottom:12px}
.dt-form-row label{display:block;font-size:12.5px;font-weight:600;color:#4b5563;margin-bottom:5px}
.dt-form-row input,.dt-form-row select,.dt-form-row textarea{width:100%;padding:8px 12px;border:1px solid #d1d5db;border-radius:6px;font-size:13.5px;font-family:inherit;box-sizing:border-box}
.dt-form-row textarea{min-height:80px;resize:vertical}
.dt-form-row input:focus,.dt-form-row select:focus,.dt-form-row textarea:focus{outline:none;border-color:#2563eb;box-shadow:0 0 0 3px rgba(37,99,235,.15)}
.dt-form-row-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.dt-modal-actions{padding:14px 22px;border-top:1px solid #e5e7eb;display:flex;justify-content:space-between;gap:8px;align-items:center}

/* Comments */
.dt-comments{margin-top:18px;border-top:1px solid #e5e7eb;padding-top:14px}
.dt-comment{background:#f9fafb;border-radius:8px;padding:8px 12px;margin-bottom:8px;font-size:13px}
.dt-comment-author{font-weight:600;color:#1B2A4A;font-size:12.5px;margin-bottom:3px;display:flex;justify-content:space-between;align-items:center}
.dt-comment-time{font-weight:400;color:#6b7280;font-size:11px}
.dt-comment-body{color:#374151;line-height:1.5;white-space:pre-wrap}
.dt-comment-form{display:flex;gap:8px;align-items:flex-start;margin-top:10px}
.dt-comment-form textarea{flex:1;padding:8px 12px;border:1px solid #d1d5db;border-radius:6px;font-size:13px;min-height:50px;resize:vertical;font-family:inherit}

/* Upload progress */
.dt-upload-status{font-size:12px;color:#6b7280;padding:6px 0}
.dt-upload-status.success{color:#15803d}
.dt-upload-status.error{color:#dc2626}

/* Auto-sync status bar */
.dt-autosync-bar{background:linear-gradient(90deg,#dbeafe,#eff6ff);border:1px solid #93c5fd;border-radius:8px;padding:10px 14px;margin-bottom:12px;display:flex;align-items:center;gap:10px;font-size:13px;color:#1e40af}
.dt-autosync-bar.error{background:#fee2e2;border-color:#fca5a5;color:#991b1b}
.dt-autosync-bar .dt-as-pulse{width:10px;height:10px;border-radius:50%;background:#3b82f6;flex-shrink:0;animation:dtPulse 1.6s infinite}
@keyframes dtPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.85)}}
.dt-autosync-bar .dt-as-info{flex:1;min-width:0}
.dt-autosync-bar .dt-as-folder{font-weight:600;color:#1e3a8a}
.dt-autosync-bar .dt-as-meta{font-size:11.5px;color:#64748b;margin-top:2px}
.dt-autosync-bar button{background:#fff;border:1px solid #cbd5e1;color:#1e3a8a;padding:5px 12px;border-radius:6px;font-size:12px;cursor:pointer;font-weight:600;font-family:inherit}
.dt-autosync-bar button:hover{background:#f1f5f9}

/* Guide tab */
.dt-guide-toc{background:#fffbeb;border:1px solid #fde68a;border-radius:8px;padding:12px 16px;margin-bottom:18px;display:flex;flex-wrap:wrap;gap:6px 14px;align-items:center;font-size:13.5px}
.dt-guide-toc strong{color:#92400e;margin-right:6px}
.dt-guide-toc a{color:#1d4ed8;text-decoration:none}
.dt-guide-toc a:hover{text-decoration:underline}

.dt-guide-section{margin-bottom:32px;scroll-margin-top:20px}
.dt-guide-section h2{color:#1B2A4A;font-size:20px;margin:0 0 12px;border-bottom:2px solid #D4A843;padding-bottom:6px}
.dt-guide-section>p{font-size:14px;color:#374151;line-height:1.6;margin:8px 0 14px}
.dt-guide-section .dt-card ol,.dt-guide-section .dt-card ul{margin:8px 0;padding-left:22px;font-size:13px;line-height:1.6;color:#374151}
.dt-guide-section .dt-card ol li,.dt-guide-section .dt-card ul li{margin-bottom:4px}
.dt-guide-note{font-size:12px;color:#6b7280;margin:8px 0 0;font-style:italic;padding-top:6px;border-top:1px dashed #e5e7eb}
.dt-guide-note b{color:#374151}

.dt-guide-table{width:100%;border-collapse:collapse;margin:10px 0;font-size:13px;background:#fff;border:1px solid #e5e7eb;border-radius:8px;overflow:hidden}
.dt-guide-table th{background:#1B2A4A;color:#fff;padding:8px 12px;text-align:left;font-weight:600;font-size:12.5px}
.dt-guide-table td{padding:8px 12px;border-top:1px solid #e5e7eb;vertical-align:top}
.dt-guide-table tr:nth-child(even) td{background:#f9fafb}

.dt-guide-flow{counter-reset:flow;list-style:none;padding:0;margin:10px 0}
.dt-guide-flow li{position:relative;background:#fff;border:1px solid #e5e7eb;border-left:3px solid #D4A843;border-radius:8px;padding:12px 18px 12px 50px;margin-bottom:10px;font-size:13.5px;color:#374151;line-height:1.6}
.dt-guide-flow li::before{counter-increment:flow;content:counter(flow);position:absolute;left:14px;top:50%;transform:translateY(-50%);width:26px;height:26px;background:#1B2A4A;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px}

.dt-faq{background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:10px 14px;margin-bottom:8px;font-size:13.5px}
.dt-faq summary{cursor:pointer;font-weight:600;color:#1B2A4A;list-style:none;display:flex;align-items:center;gap:6px}
.dt-faq summary::before{content:'▶';font-size:10px;transition:transform .15s;color:#6b7280}
.dt-faq[open] summary::before{transform:rotate(90deg)}
.dt-faq p{margin:10px 0 4px;color:#374151;line-height:1.6;padding-left:18px}

kbd{background:#1f2937;color:#fff;padding:1px 7px;border-radius:4px;font-size:11.5px;font-family:Menlo,monospace}
.dt-guide-section code{background:#f3f4f6;padding:1px 6px;border-radius:4px;font-size:12px;color:#1e40af}

/* Wide card cho setup step-by-step */
.dt-card-wide{grid-column:1/-1;background:linear-gradient(135deg,#fffbeb 0%,#fff 60%);border-color:#fde68a}

/* Step layout — số bước + nội dung */
.dt-step{display:grid;grid-template-columns:36px 1fr;gap:12px;padding:12px 0;border-top:1px dashed #e5e7eb}
.dt-step:first-of-type{border-top:none;padding-top:14px}
.dt-step-num{width:32px;height:32px;background:#1B2A4A;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex-shrink:0}
.dt-step-body{font-size:13.5px;color:#374151;line-height:1.6}
.dt-step-body b{color:#1B2A4A;font-size:14px}
.dt-step-body p{margin:6px 0}
.dt-step-hint{font-size:12px;color:#6b7280;font-style:italic;margin-left:4px}

/* Command box với nút copy */
.dt-cmd{display:flex;align-items:center;gap:8px;background:#1f2937;color:#e5e7eb;border-radius:6px;padding:8px 10px 8px 14px;margin:8px 0;font-family:Menlo,Consolas,monospace;font-size:12.5px}
.dt-cmd code{background:transparent !important;color:#fbbf24 !important;font-size:12.5px !important;padding:0 !important;flex:1;overflow-x:auto;white-space:nowrap}
.dt-copy-btn{background:#374151;color:#e5e7eb;border:none;padding:4px 10px;border-radius:4px;cursor:pointer;font-size:11px;font-weight:600;font-family:inherit;transition:background .15s;flex-shrink:0}
.dt-copy-btn:hover{background:#4b5563}
.dt-copy-btn.copied{background:#15803d;color:#fff}
.dt-cmd-inline{background:#1f2937;color:#fbbf24;padding:2px 6px;border-radius:4px;font-family:Menlo,Consolas,monospace;font-size:11.5px}

/* Link nhỏ kiểu button */
.dt-btn-link{display:inline-block;color:#1d4ed8;text-decoration:none;font-weight:600;border-bottom:1px dashed #1d4ed8;padding-bottom:1px}
.dt-btn-link:hover{color:#1e3a8a;border-bottom-style:solid}

kbd{display:inline-block;background:#f3f4f6;border:1px solid #d1d5db;border-bottom-width:2px;border-radius:4px;padding:1px 6px;font-family:Menlo,Consolas,monospace;font-size:11px;color:#1f2937;box-shadow:0 1px 0 rgba(0,0,0,0.05)}

/* AI Studio */
.dt-ai-layout{display:grid;grid-template-columns:280px 1fr;gap:16px;min-height:600px}
@media(max-width:980px){.dt-ai-layout{grid-template-columns:1fr}}
.dt-ai-sidebar{background:#f9fafb;border:1px solid #e5e7eb;border-radius:10px;padding:14px;display:flex;flex-direction:column;gap:14px;overflow-y:auto}
.dt-ai-section h4{margin:0 0 8px;font-size:13px;color:#1B2A4A;text-transform:uppercase;letter-spacing:.5px;font-weight:700}
.dt-ai-hint{font-size:11px;color:#6b7280;margin:4px 0;line-height:1.5}
.dt-ai-preset{display:block;width:100%;text-align:left;background:#fff;border:1px solid #e5e7eb;border-radius:6px;padding:8px 12px;font-size:13px;cursor:pointer;color:#1B2A4A;margin-bottom:5px;font-family:inherit;transition:all .12s}
.dt-ai-preset:hover{background:#fef3c7;border-color:#D4A843;transform:translateX(2px)}
.dt-ai-main{display:flex;flex-direction:column;gap:12px}
.dt-ai-prompt-box{background:#fff;border:1px solid #e5e7eb;border-radius:10px;padding:12px}
.dt-ai-prompt-box textarea{width:100%;resize:vertical;font-family:inherit;font-size:13px;box-sizing:border-box}
.dt-ai-status{font-size:12px;color:#6b7280;margin-top:6px;min-height:18px}
.dt-ai-status.loading{color:#0369a1}
.dt-ai-status.error{color:#dc2626;background:#fee2e2;padding:6px 10px;border-radius:5px;border:1px solid #fca5a5}
.dt-ai-status.success{color:#15803d}
.dt-ai-preview-wrap{background:#fff;border:1px solid #e5e7eb;border-radius:10px;overflow:hidden;display:flex;flex-direction:column;flex:1;min-height:400px}
.dt-ai-preview-bar{display:flex;align-items:center;gap:8px;padding:8px 12px;background:#f9fafb;border-bottom:1px solid #e5e7eb}
#dt-ai-preview{width:100%;flex:1;border:none;background:#fff;min-height:400px}
#dt-ai-source{width:100%;height:300px;padding:12px;font-family:Menlo,monospace;font-size:12px;border:none;background:#1f2937;color:#d1d5db;resize:vertical}

/* Empty state */
.dt-empty{padding:60px 20px;text-align:center;color:#9ca3af;font-size:14px}
.dt-empty .icon{font-size:48px;margin-bottom:10px;opacity:.5}