/* ───────── Image Studio — workspace layout (2026-09-06) ───────── */
.studio-page{padding-top:36px}
.studio-page .container>*+*{margin-top:22px}

/* header: title left, 3-step strip right */
.st-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.st-head-text{max-width:640px}
.st-head h1{font-size:clamp(1.8rem,3.4vw,2.5rem);margin:0 0 8px}
.st-head p{margin:0;color:var(--muted);font-size:1rem;line-height:1.6}
.st-steps{list-style:none;margin:0;padding:0;display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.st-steps li{display:inline-flex;align-items:center;gap:8px;font-size:.85rem;font-weight:700;color:var(--ink-3);background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px 6px 6px;white-space:nowrap}
.st-steps li+li::before{content:"";display:none}
.st-no,.st-steps li span{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;background:var(--primary);color:#fff;font-size:.78rem;font-weight:800;flex:none}

/* account gate card (guest / unverified) */
.st-gate{display:flex;align-items:center;gap:18px;flex-wrap:wrap;background:linear-gradient(135deg,var(--primary-50),#fff 60%);border:1px solid var(--primary-100);border-radius:var(--radius-lg);padding:18px 22px}
.st-gate-ico{width:44px;height:44px;border-radius:12px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;flex:none}.st-gate-ico .i{width:22px;height:22px}
.st-gate-text{flex:1 1 320px;min-width:0}.st-gate-text b{display:block;font-size:1.05rem;margin-bottom:2px}.st-gate-text p{margin:0;color:var(--ink-3);font-size:.92rem;line-height:1.5}
.st-gate-actions{display:flex;gap:8px;flex-wrap:wrap}
.st-gate-warn{background:linear-gradient(135deg,#fffbeb,#fff 60%);border-color:#fde68a}.st-gate-warn .st-gate-ico{background:#d97706}

/* workspace: source | actions */
.st-work{display:grid;grid-template-columns:380px minmax(0,1fr);gap:22px;align-items:start}
.st-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-sm)}
.st-panel-head{display:flex;align-items:center;gap:10px;margin-bottom:16px;flex-wrap:wrap}
.st-panel-head h3{font-size:1.05rem;margin:0;flex:1 1 auto}
.st-chip-ok{display:inline-flex;align-items:center;gap:6px;font-size:.78rem;font-weight:700;color:#166534;background:#dcfce7;border-radius:999px;padding:4px 10px}
.st-clear{border:0;background:none;color:var(--muted);font:inherit;font-size:.8rem;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;gap:4px;padding:4px 6px;border-radius:6px}.st-clear:hover{background:var(--bg-3);color:var(--ink)}

/* dropzone */
.st-drop{position:relative;border:2px dashed #c7d2fe;border-radius:var(--radius);min-height:240px;display:flex;align-items:center;justify-content:center;overflow:hidden;background:var(--bg-2);cursor:pointer;transition:.15s}
.st-drop:hover,.st-drop.dragover{border-color:var(--primary);background:var(--primary-50)}
.st-drop.has-source{border-style:solid;border-color:var(--line);background:#fff;cursor:default}
.st-drop img[data-st-preview]{max-width:100%;max-height:380px;object-fit:contain;display:block}
.st-drop-empty{text-align:center;color:var(--muted);padding:28px 20px}
.st-drop-ico{width:52px;height:52px;border-radius:14px;background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;margin:0 auto 12px;color:var(--primary);box-shadow:var(--shadow-sm)}.st-drop-ico .i{width:24px;height:24px}
.st-drop-title{margin:0 0 4px;font-weight:800;color:var(--ink);font-size:1rem}
.st-drop-sub{margin:0;font-size:.85rem;line-height:1.5}
.st-drop-busy{position:absolute;inset:0;background:rgba(255,255,255,.8);display:flex;align-items:center;justify-content:center}
.st-ready{position:absolute;top:10px;left:10px;display:inline-flex;align-items:center;gap:4px;background:#166534;color:#fff;font-size:.75rem;font-weight:700;padding:4px 9px;border-radius:999px;box-shadow:var(--shadow-sm)}
.st-src-actions{display:flex;flex-direction:column;gap:8px;margin-top:12px}
.st-src-actions .url-row{display:flex;gap:6px}.st-src-actions .url-row input{flex:1;min-width:0;padding:10px 12px;border:1.5px solid var(--line);border-radius:var(--radius-sm);font:inherit;font-size:.9rem}
.st-src-actions .url-row input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-100)}
.st-src-actions .url-row .btn{padding:0 14px}
.st-fine{margin:10px 0 0;font-size:.78rem;color:var(--muted-2);line-height:1.5}
.st-label{font-size:.75rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:16px 0 8px}
.st-picks{display:flex;gap:6px;overflow-x:auto;padding-bottom:4px;scrollbar-width:thin}
.st-pick{flex:none;width:58px;height:58px;padding:0;border:2px solid var(--line);border-radius:10px;overflow:hidden;background:#fff;cursor:pointer;transition:.12s}
.st-pick img{width:100%;height:100%;object-fit:cover;object-position:top;display:block}
.st-pick:hover{border-color:var(--primary-100);transform:translateY(-1px)}.st-pick.active{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-100)}

/* mode tiles */
.st-tiles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-bottom:20px}
.st-tile{display:flex;flex-direction:column;align-items:flex-start;gap:6px;text-align:start;padding:14px;border:1.5px solid var(--line);border-radius:var(--radius);background:#fff;cursor:pointer;font-family:inherit;color:var(--ink);transition:.12s;min-width:0}
.st-tile:hover{border-color:#c7d2fe;background:var(--bg-2)}
.st-tile.active{border-color:var(--primary);background:var(--primary-50);box-shadow:0 0 0 3px var(--primary-100)}
.st-tile-ico{width:34px;height:34px;border-radius:10px;background:var(--bg-3);display:flex;align-items:center;justify-content:center;color:var(--ink-3)}.st-tile-ico .i{width:18px;height:18px}
.st-tile.active .st-tile-ico{background:var(--primary);color:#fff}
.st-tile b{font-size:.92rem;line-height:1.25}.st-tile small{font-size:.76rem;color:var(--muted);line-height:1.4}

/* forms */
.st-actions .field{margin-bottom:14px}
.st-actions textarea{resize:vertical;min-height:76px;line-height:1.55}
.st-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.st-chips{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin:-4px 0 16px}
.st-chips>span{font-size:.75rem;font-weight:800;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin-inline-end:2px}
.st-chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:5px 11px;font:inherit;font-size:.8rem;color:var(--ink-3);cursor:pointer;transition:.12s;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.st-chip:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-50)}
.st-run{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-top:6px;padding-top:16px;border-top:1px solid var(--line-2)}
.st-run-hint{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:.85rem;flex-wrap:wrap}
.st-run-hint kbd{font:inherit;font-size:.72rem;font-weight:700;background:var(--bg-3);border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;padding:1px 6px;color:var(--ink-3)}
.st-run .btn-lg{padding:14px 26px;border-radius:12px}
.st-btns{display:flex;flex-wrap:wrap;gap:8px;margin:4px 0 14px}
.st-result{border:1px solid var(--line);border-radius:var(--radius);padding:12px 14px;margin-top:12px;background:var(--bg-2)}
.st-result-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px;font-size:.9rem}
.st-result pre{white-space:pre-wrap;word-break:break-word;font:inherit;font-size:.95rem;margin:0;max-height:320px;overflow:auto;background:#fff;border:1px solid var(--line);border-radius:8px;padding:10px 12px}

/* results */
.st-results{margin-top:34px}
.st-results-head{margin-bottom:14px}
.st-results-head>div{display:flex;align-items:center;gap:10px}
.st-results-head h2{font-size:1.25rem;margin:0;display:flex;align-items:baseline;gap:8px}
.st-count{font-size:.8rem;font-weight:800;color:var(--primary-700);background:var(--primary-50);border-radius:999px;padding:2px 9px}
.st-results-head p{margin:6px 0 0 34px;font-size:.88rem;max-width:640px}
.st-gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;position:relative;min-height:80px}
.st-empty{grid-column:1/-1;border:1.5px dashed var(--line);border-radius:var(--radius-lg);text-align:center;padding:40px 20px;color:var(--muted);background:var(--bg-2)}
.st-empty-ico{width:52px;height:52px;border-radius:14px;background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;margin:0 auto 12px;color:var(--primary)}.st-empty-ico .i{width:24px;height:24px}
.st-empty b{display:block;color:var(--ink);font-size:1.02rem;margin-bottom:4px}.st-empty p{margin:0 auto 16px;max-width:460px;font-size:.9rem;line-height:1.55}
.st-empty-actions{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.st-card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-sm);transition:.15s}
.st-card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.st-media{position:relative;background:var(--bg-3);aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;overflow:hidden}
.st-img{display:block;width:100%;height:100%}.st-img img{width:100%;height:100%;object-fit:contain;display:block;transition:transform .25s}.st-img:hover img{transform:scale(1.03)}
.st-state{text-align:center;padding:16px;width:100%}.st-state p{margin:8px 0;font-size:.85rem;color:var(--muted)}.st-state .progress{max-width:180px;margin:0 auto}.st-state .spinner{width:40px;height:40px;border-width:4px;margin-bottom:8px}
.st-state.st-err{color:#b91c1c}.st-state.st-err .i{width:28px;height:28px}
.st-src-thumb{position:absolute;left:8px;bottom:8px;width:44px;height:44px;object-fit:cover;border-radius:8px;border:2px solid #fff;box-shadow:0 1px 4px rgba(0,0,0,.25)}
.st-kind{position:absolute;top:8px;left:8px;box-shadow:var(--shadow-sm)}
.st-body{padding:12px 14px 4px}
.st-prompt{margin:0 0 4px;font-size:.86rem;line-height:1.45;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.st-meta{margin:0;font-size:.76rem}
.st-actions-row{display:flex;flex-wrap:wrap;gap:6px;padding:10px 12px 12px;margin-top:auto;align-items:center}
.st-actions-row .st-main{flex:1 1 100%;justify-content:center}
.st-ib{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;flex:none;border:1.5px solid var(--line);border-radius:8px;background:#fff;color:var(--ink-3);cursor:pointer;transition:.12s;text-decoration:none}
.st-ib:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-50)}
.st-ib.st-del{margin-inline-start:auto;color:var(--muted)}.st-ib.st-del:hover{border-color:var(--danger);color:var(--danger);background:#fef2f2}
.st-hint{font-size:.78rem;flex:1 1 auto}
.st-api{font-size:.88rem;margin-top:22px;display:flex;gap:6px;align-items:center;flex-wrap:wrap}

@media (max-width:1024px){.st-work{grid-template-columns:340px minmax(0,1fr)}}
@media (max-width:900px){.st-work{grid-template-columns:1fr}.st-steps{display:none}}
@media (max-width:640px){.st-tiles{grid-template-columns:repeat(2,minmax(0,1fr))}.st-panel{padding:16px}.st-run{flex-direction:column;align-items:stretch}.st-run .btn-lg{width:100%}.st-gate{padding:16px}.st-gate-actions{width:100%}.st-gate-actions .btn{flex:1}}