:root{--bg:#0d0d12;--bg2:#13131a;--bg3:#1c1c26;--border:#252533;--acc:#3b82f6;--acc2:#6366f1;--text:#e8e8f0;--muted:#5a5a7a;--success:#22c55e;--danger:#ef4444;--warn:#f59e0b;--font:'Inter',sans-serif;--font-d:'Space Grotesk',sans-serif;}
[data-theme="light"]{--bg:#f0f0f6;--bg2:#fff;--bg3:#e8e8f2;--border:#d0d0e0;--text:#111118;--muted:#666688;}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;display:flex;flex-direction:column;-webkit-font-smoothing:antialiased;text-rendering:optimizeSpeed;overflow-x:hidden;}
button,select,input,textarea{font-family:inherit;}
button{will-change:transform;backface-visibility:hidden;}
/* Header */
.hdr{height:52px;padding:0 20px;background:var(--bg2);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100;}
.hdr-left,.hdr-right{display:flex;align-items:center;gap:10px;}
.logo-mark{width:28px;height:28px;border-radius:7px;background:linear-gradient(135deg,#3b82f6,#6366f1);display:flex;align-items:center;justify-content:center;font-family:var(--font-d);font-weight:900;color:#fff;font-size:.85rem;}
.logo-txt{font-family:var(--font-d);font-weight:800;font-size:1rem;}.acc{color:var(--acc);}
.ver-badge{font-size:.62rem;padding:2px 7px;border-radius:20px;background:rgba(59,130,246,.15);color:var(--acc);border:1px solid rgba(59,130,246,.3);font-weight:700;}
.api-pill{display:flex;align-items:center;gap:5px;padding:4px 12px;border-radius:20px;background:var(--bg3);border:1px solid var(--border);font-size:.72rem;color:var(--muted);}
.dot{width:7px;height:7px;border-radius:50%;background:#333;flex-shrink:0;transition:background .3s;}
.dot.active{background:var(--success);box-shadow:0 0 6px var(--success);}
.btn-icon{width:32px;height:32px;border-radius:7px;background:var(--bg3);border:1px solid var(--border);color:var(--muted);cursor:pointer;font-size:.9rem;display:flex;align-items:center;justify-content:center;}
.btn-icon:hover{color:var(--acc);}
.btn-primary{padding:7px 16px;border-radius:7px;background:linear-gradient(135deg,#3b82f6,#6366f1);color:#fff;border:none;font-size:.8rem;font-weight:700;cursor:pointer;}
.btn-primary:hover{opacity:.88;}
/* Layout */
.app-wrap{display:flex;flex:1;min-height:calc(100vh - 52px);overflow:hidden;}
/* Sidebar */
.sidebar{width:260px;flex-shrink:0;background:var(--bg2);border-right:1px solid var(--border);overflow-y:auto;overflow-x:hidden;display:flex;flex-direction:column;position:sticky;top:52px;height:calc(100vh - 52px);contain:strict;-webkit-overflow-scrolling:touch;}
.sb-head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--border);}
.sb-title{font-size:.82rem;font-weight:700;color:var(--text);}
.btn-reset{font-size:.7rem;padding:4px 10px;border-radius:6px;background:var(--bg3);border:1px solid var(--border);color:var(--muted);cursor:pointer;}
.btn-reset:hover{color:var(--acc);border-color:var(--acc);}
/* Sidebar tabs */
.sb-tabs{display:flex;align-items:center;gap:4px;padding:10px 12px;border-bottom:1px solid var(--border);flex-wrap:wrap;}
.sbt{padding:5px 14px;border-radius:6px;border:none;background:none;color:var(--muted);font-size:.8rem;font-weight:600;cursor:pointer;}
.sbt.active{background:rgba(59,130,246,.2);color:var(--acc);}
.provider-ready{margin-left:auto;font-size:.65rem;font-weight:700;padding:3px 8px;border-radius:20px;background:rgba(34,197,94,.15);color:var(--success);border:1px solid rgba(34,197,94,.3);}
/* Control groups */
.ctrl-group{padding:12px 14px;border-bottom:1px solid var(--border);}
.ctrl-label{font-size:.75rem;font-weight:600;color:var(--muted);margin-bottom:7px;}
.ctrl-label-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:7px;font-size:.75rem;color:var(--muted);}
.ctrl-val{font-size:.7rem;color:var(--acc);font-weight:700;}
.tip{opacity:.5;cursor:help;}
/* Platform buttons */
.platform-row{display:flex;gap:5px;flex-wrap:wrap;}
.plt-btn{width:34px;height:34px;border-radius:7px;background:var(--bg3);border:1px solid var(--border);color:var(--muted);cursor:pointer;font-size:.7rem;font-weight:800;display:flex;align-items:center;justify-content:center;overflow:hidden;padding:0;transition:.15s;}
.plt-btn img{width:18px;height:18px;object-fit:contain;}
.plt-btn:hover,.plt-btn.active{border-color:var(--acc);background:rgba(59,130,246,.15);color:var(--acc);}
/* Slider */
.slider{width:100%;height:3px;border-radius:2px;background:var(--border);appearance:none;cursor:pointer;margin-top:4px;}
.slider::-webkit-slider-thumb{appearance:none;width:14px;height:14px;border-radius:50%;background:var(--acc);cursor:pointer;}
/* Toggle */
.toggle-row{display:flex;align-items:center;justify-content:space-between;font-size:.78rem;color:var(--text);}
.toggle{position:relative;display:inline-block;width:38px;height:20px;flex-shrink:0;}
.toggle input{opacity:0;width:0;height:0;}
.tog-track{position:absolute;inset:0;border-radius:20px;background:var(--border);cursor:pointer;transition:.2s;}
.tog-track::before{content:'';position:absolute;left:3px;top:3px;width:14px;height:14px;border-radius:50%;background:#fff;transition:.2s;}
.toggle input:checked+.tog-track{background:var(--acc);}
.toggle input:checked+.tog-track::before{transform:translateX(18px);}
/* Select & Input */
.ctrl-select,.ctrl-input{width:100%;padding:8px 10px;border-radius:7px;background:var(--bg3);border:1px solid var(--border);color:var(--text);font-size:.8rem;appearance:none;margin-top:4px;}
.ctrl-select:focus,.ctrl-input:focus{outline:none;border-color:var(--acc);}
.prefix-input{margin-top:8px;}
/* Textarea */
.ctrl-textarea{width:100%;height:90px;padding:9px;border-radius:7px;background:var(--bg3);border:1px solid var(--border);color:var(--text);font-size:.75rem;resize:vertical;line-height:1.5;margin-top:4px;}
.ctrl-textarea:focus{outline:none;border-color:var(--acc);}
.autosave-badge{font-size:.62rem;font-weight:700;padding:2px 7px;border-radius:10px;background:rgba(34,197,94,.15);color:var(--success);}
.sbt-pane{display:none;}.sbt-pane.active{display:block;}
/* Main area */
.main-area{flex:1;overflow-y:auto;overflow-x:hidden;padding:24px;display:flex;flex-direction:column;gap:16px;-webkit-overflow-scrolling:touch;scroll-behavior:smooth;contain:layout style;min-width:0;}
/* Upload */
.upload-heading{font-family:var(--font-d);font-size:1.3rem;font-weight:800;margin-bottom:4px;}
.upload-desc{font-size:.78rem;color:var(--muted);margin-bottom:14px;line-height:1.5;}
.dropzone{border:2px dashed var(--border);border-radius:12px;padding:36px 24px;text-align:center;cursor:pointer;transition:.18s;background:var(--bg2);display:flex;flex-direction:column;align-items:center;gap:8px;}
.dropzone:hover,.dropzone.drag-over{border-color:var(--acc);background:rgba(59,130,246,.04);}
.dz-icon{font-size:2.4rem;opacity:.3;line-height:1;}
.dz-title{font-size:1rem;font-weight:700;}
.dz-sub{font-size:.74rem;color:var(--muted);max-width:500px;line-height:1.5;}
/* Status bar */
.status-bar{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--bg2);border:1px solid var(--border);border-radius:10px;flex-wrap:wrap;}
.file-count{font-size:.82rem;font-weight:600;flex:1;}
.status-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.btn-clear{padding:6px 14px;border-radius:7px;background:var(--bg3);border:1px solid var(--border);color:var(--muted);font-size:.78rem;font-weight:700;cursor:pointer;}
.btn-clear:hover{border-color:var(--danger);color:var(--danger);}
.btn-stop{padding:6px 14px;border-radius:7px;background:rgba(239,68,68,.15);border:1px solid var(--danger);color:var(--danger);font-size:.78rem;font-weight:700;cursor:pointer;}
.btn-status-ok{padding:6px 14px;border-radius:7px;background:rgba(34,197,94,.15);border:1px solid var(--success);color:var(--success);font-size:.78rem;font-weight:700;}
.btn-dl-csv,.btn-dl-zip{padding:6px 16px;border-radius:7px;background:linear-gradient(135deg,#3b82f6,#6366f1);color:#fff;border:none;font-size:.78rem;font-weight:700;cursor:pointer;}
.btn-dl-zip{background:linear-gradient(135deg,#6366f1,#8b5cf6);}
.btn-dl-csv:hover,.btn-dl-zip:hover{opacity:.88;}
/* Summary bar */
.summary-bar{display:flex;align-items:center;gap:16px;font-size:.78rem;font-weight:600;padding:8px 14px;background:var(--bg2);border:1px solid var(--border);border-radius:8px;}
.sum-done{color:var(--success);}.sum-pending{color:var(--warn);}.sum-error{color:var(--danger);}
/* Generate all */
.gen-all-wrap{text-align:center;}
.btn-gen-all{padding:12px 36px;border-radius:10px;background:linear-gradient(135deg,#3b82f6,#6366f1);color:#fff;border:none;font-size:.95rem;font-weight:800;cursor:pointer;transition:opacity .15s,transform .15s;will-change:transform;}
.btn-gen-all:hover:not(:disabled){opacity:.88;transform:translateY(-1px);box-shadow:0 4px 20px rgba(59,130,246,.3);}
.btn-gen-all:disabled{opacity:.4;cursor:not-allowed;}
/* Results list */
.results-list{display:flex;flex-direction:column;gap:12px;contain:layout;}
/* Result card */
.res-card{background:var(--bg2);border:1px solid var(--border);border-radius:12px;overflow:hidden;transition:border-color .15s;contain:content;min-width:0;transform:translateZ(0);}
.res-card:hover{border-color:rgba(59,130,246,.4);}
.res-card-header{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--bg3);border-bottom:1px solid var(--border);}
.res-num{width:24px;height:24px;border-radius:50%;background:rgba(59,130,246,.2);color:var(--acc);font-size:.75rem;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.res-fname{font-size:.82rem;font-weight:700;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.res-badge{font-size:.65rem;font-weight:700;padding:3px 10px;border-radius:20px;flex-shrink:0;}
.res-badge.done{background:rgba(34,197,94,.15);color:var(--success);border:1px solid rgba(34,197,94,.3);}
.res-badge.pending{background:rgba(245,158,11,.15);color:var(--warn);border:1px solid rgba(245,158,11,.3);}
.res-badge.error{background:rgba(239,68,68,.15);color:var(--danger);border:1px solid rgba(239,68,68,.3);}
.res-badge.analyzing{background:rgba(59,130,246,.15);color:var(--acc);border:1px solid rgba(59,130,246,.3);}
.btn-regen{padding:4px 12px;border-radius:6px;background:var(--bg);border:1px solid var(--border);color:var(--muted);font-size:.72rem;font-weight:700;cursor:pointer;}
.btn-regen:hover{border-color:var(--acc);color:var(--acc);}
.res-body{display:flex;gap:14px;padding:14px;min-width:0;}
.res-thumb{width:80px;height:80px;border-radius:8px;object-fit:cover;flex-shrink:0;background:var(--bg3);border:1px solid var(--border);}
.res-thumb-wrap{position:relative;width:80px;height:80px;flex-shrink:0;overflow:hidden;border-radius:8px;}
.res-thumb-wrap .res-thumb{width:100%;height:100%;display:flex;align-items:center;justify-content:center;font-size:1.8rem;}
.res-thumb-wrap video,.res-thumb-wrap img{width:100%;height:100%;object-fit:cover;border-radius:8px;}
.res-content{flex:1;min-width:0;display:flex;flex-direction:column;gap:10px;overflow:hidden;}
/* Field rows */
.res-field{display:flex;flex-direction:column;gap:6px;}
.res-field-head{display:flex;align-items:center;justify-content:space-between;}
.res-field-label{font-size:.65rem;font-weight:800;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);}
.res-field-actions{display:flex;gap:5px;}
.btn-copy,.btn-edit{padding:3px 10px;border-radius:5px;border:1px solid var(--border);background:var(--bg3);color:var(--muted);font-size:.68rem;font-weight:700;cursor:pointer;}
.btn-copy:hover,.btn-edit:hover{border-color:var(--acc);color:var(--acc);}
.res-title-text{font-size:.85rem;line-height:1.5;color:var(--text);}
.res-kw-list{display:flex;flex-wrap:wrap;gap:4px;}
.res-kw{padding:2px 8px;border-radius:20px;background:var(--bg3);border:1px solid var(--border);font-size:.7rem;color:var(--muted);}
.res-desc-text{font-size:.8rem;line-height:1.6;color:var(--muted);}
.res-seo-row{display:flex;align-items:center;gap:8px;}
.res-seo-label{font-size:.7rem;color:var(--muted);}
.res-seo-val{font-size:.75rem;font-weight:800;color:var(--acc);}
.res-seo-track{flex:1;height:4px;background:var(--border);border-radius:2px;overflow:hidden;}
.res-seo-fill{height:100%;background:linear-gradient(90deg,#3b82f6,#6366f1);border-radius:2px;transition:width 1s ease;}
/* Analyzing overlay for card */
.res-analyzing{display:flex;align-items:center;gap:10px;padding:14px;color:var(--muted);font-size:.8rem;}
.spin-sm{width:18px;height:18px;border-radius:50%;border:2px solid var(--border);border-top-color:var(--acc);animation:spin .6s linear infinite;flex-shrink:0;will-change:transform;}
@keyframes spin{to{transform:rotate(360deg)}}
/* Perf: prevent layout recalc on keyword wrapping */
.res-kw-list{contain:layout;}
.res-title-text{word-break:break-word;overflow-wrap:break-word;}
.res-fname{contain:layout;}
/* Smooth all transitions */
*{-webkit-tap-highlight-color:transparent;}
/* Toast */
.toast-container{position:fixed;bottom:20px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:6px;}
.toast{padding:10px 16px;border-radius:8px;font-size:.82rem;font-weight:600;max-width:320px;animation:sUp .25s ease;}
.toast-success{background:#0f2a1a;border:1px solid var(--success);color:var(--success);}
.toast-error{background:#2a0f0f;border:1px solid var(--danger);color:var(--danger);}
.toast-info{background:#0f0f2a;border:1px solid #6366f1;color:#818cf8;}
@keyframes sUp{from{transform:translateY(10px);opacity:0}to{opacity:1;transform:none}}
/* Responsive */
@media(max-width:768px){.sidebar{width:100%;border-right:none;border-bottom:1px solid var(--border);}.app-wrap{flex-direction:column;}}