*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:#0a0a0f;color:#e2e8f0;min-height:100dvh;touch-action:manipulation}
#app{display:flex;flex-direction:column;height:100dvh}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;gap:5px;padding:7px 14px;border-radius:8px;border:none;font-size:13px;font-weight:600;cursor:pointer;transition:all 0.15s;text-decoration:none;font-family:inherit}
.btn:active{transform:scale(0.97)}
.btn-xs{padding:4px 10px;font-size:12px;border-radius:6px}
.btn-sm{padding:5px 12px;font-size:13px;border-radius:7px}
.btn-lg{padding:11px 28px;font-size:15px;border-radius:10px}
.btn-primary{background:#10b981;color:#fff}
.btn-primary:hover{background:#059669}
.btn-primary:disabled{opacity:0.35;cursor:not-allowed}
.btn-ghost{background:transparent;color:#94a3b8}
.btn-ghost:hover{background:rgba(255,255,255,0.06);color:#e2e8f0}

/* ── Main ── */
main{flex:1;overflow:hidden;display:flex}

/* ── Login Prompt ── */
.login-prompt{flex:1;display:flex;align-items:center;justify-content:center;padding:20px}
.login-card{text-align:center;max-width:340px}
.login-icon{margin-bottom:14px;opacity:0.7}
.login-card h2{font-size:22px;font-weight:700;margin-bottom:4px}
.subtitle{color:#64748b;font-size:13px;margin-bottom:28px}
.hint{color:#475569;font-size:12px;margin-top:16px}

/* ── Workspace Layout ── */
.workspace{flex:1;display:flex;overflow:hidden}

/* ── Sidebar ── */
.sidebar{width:500px;flex-shrink:0;display:flex;flex-direction:column;border-right:1px solid rgba(255,255,255,0.06);background:rgba(255,255,255,0.01);overflow:hidden}

.user-bar{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid rgba(255,255,255,0.05);flex-shrink:0}
.user-avatar{width:32px;height:32px;border-radius:50%;background:rgba(16,185,129,0.1);display:flex;align-items:center;justify-content:center;color:#10b981;flex-shrink:0}
.user-info{display:flex;flex-direction:column;min-width:0;flex:1}
.user-name{font-size:13px;font-weight:600;color:#e2e8f0}
.user-exp{font-size:11px;color:#64748b}
.user-badge-sm{font-size:11px;padding:2px 8px;border-radius:10px;font-weight:600;flex-shrink:0}
.user-badge-sm:empty{display:none}

.input-area{padding:0 16px 10px;border-bottom:1px solid rgba(255,255,255,0.05);flex-shrink:0}
.input-area textarea{width:100%;padding:10px 12px;padding-bottom:40px;border-radius:10px 10px 0 0;border:1px solid rgba(255,255,255,0.07);border-bottom:none;background:rgba(255,255,255,0.03);color:#e2e8f0;font-size:13px;line-height:1.5;resize:none;outline:none;font-family:inherit;transition:border-color 0.15s;display:block}
.input-area textarea:focus{border-color:rgba(16,185,129,0.25)}
.input-area textarea::placeholder{color:#475569}

.input-footer{display:flex;align-items:center;justify-content:space-between;padding:5px 8px;border-radius:0 0 10px 10px;border:1px solid rgba(255,255,255,0.07);border-top:none;background:rgba(255,255,255,0.03)}
.input-footer-left{display:flex;flex-direction:column;gap:4px}
.input-footer-left>div{display:flex;gap:4px}
.input-footer-right{display:flex;align-items:center;gap:6px}

.input-footer-left .upload-preview{display:flex;gap:4px;flex-wrap:wrap}
.input-footer-left .upload-preview img{width:30px;height:30px;border-radius:4px;object-fit:cover;border:1px solid rgba(255,255,255,0.06);cursor:pointer}
.input-footer-left .upload-preview img:hover{border-color:rgba(239,68,68,0.5)}

.fav-refs-wrap{flex:1;overflow:hidden;display:flex;flex-direction:column;padding:8px 16px 12px}
.fav-refs-label{font-size:11px;color:#475569;margin-bottom:6px;font-weight:500;flex-shrink:0}
.fav-refs-add{aspect-ratio:1;border-radius:6px;border:1px dashed rgba(255,255,255,0.12);background:rgba(255,255,255,0.02);color:#475569;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:300;line-height:1;padding:0;transition:all 0.12s;width:100%}
.fav-refs-add:hover{background:rgba(16,185,129,0.08);border-color:rgba(16,185,129,0.3);color:#10b981}
.fav-refs{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;overflow-y:auto;align-content:start;flex:1}
.fav-refs:empty{display:none}
.fav-ref{aspect-ratio:1;border-radius:6px;overflow:hidden;border:1px solid rgba(255,255,255,0.06);cursor:pointer;transition:border-color 0.12s;position:relative;min-width:0}
.fav-ref:hover{border-color:rgba(16,185,129,0.4)}
.fav-ref img{width:100%;height:100%;object-fit:cover;display:block}
.fav-ref-del{position:absolute;top:2px;right:2px;width:18px;height:18px;border-radius:50%;background:rgba(0,0,0,0.55);border:none;color:#fff;font-size:11px;cursor:pointer;display:none;align-items:center;justify-content:center;line-height:1;padding:0;z-index:1}
.fav-ref:hover .fav-ref-del{display:flex}
.fav-ref-del:hover{background:#ef4444}

.count-stepper{display:inline-flex;align-items:center;gap:2px}
.step-btn{display:none}
.step-btn{width:22px;height:22px;padding:0;font-size:14px;font-weight:700;border-radius:4px;align-items:center;justify-content:center;line-height:1}
.count-input{width:28px;height:22px;padding:0 2px;text-align:center;font-size:13px;font-weight:700;color:#e2e8f0;background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.07);border-radius:4px;outline:none;font-family:inherit;-moz-appearance:textfield}
.count-input::-webkit-outer-spin-button,.count-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}

/* ── Main Area ── */
.main-area{flex:1;display:flex;flex-direction:column;overflow:hidden}

.top-bar{display:flex;align-items:center;justify-content:space-between;padding:8px 20px;border-bottom:1px solid rgba(255,255,255,0.06);background:rgba(10,10,15,0.98);flex-shrink:0}
.gallery-stats{display:flex;gap:16px;font-size:12px;color:#64748b}
.stat-item b{margin-left:3px}
.stat-ok b{color:#10b981}
.stat-fail b{color:#ef4444}
.stat-total b{color:#e2e8f0}
.top-bar-actions{display:flex;gap:6px}

/* ── Modal ── */
.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.55);display:flex;align-items:center;justify-content:center;z-index:1000;backdrop-filter:blur(4px)}
.modal{background:linear-gradient(145deg,rgba(40,40,50,0.98),rgba(25,25,35,0.98));border-radius:16px;border:1px solid rgba(255,255,255,0.07);width:100%;max-width:380px;box-shadow:0 20px 50px rgba(0,0,0,0.5);margin:16px;max-height:90vh;overflow-y:auto}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:18px 22px 0}
.modal-header h3{font-size:17px;font-weight:700}
.modal-close{background:none;border:none;color:#64748b;font-size:22px;cursor:pointer;padding:0 4px;line-height:1}
.modal-close:hover{color:#e2e8f0}
.modal-body{padding:14px 22px}
.modal-desc{color:#94a3b8;font-size:13px;margin-bottom:14px;line-height:1.5}
.modal-body a{color:#10b981}
.modal-body code{color:#10b981;font-size:11px;background:rgba(16,185,129,0.08);padding:1px 5px;border-radius:3px;font-family:monospace}
.login-tabs{display:flex;gap:0;margin-bottom:14px;border-radius:8px;overflow:hidden;border:1px solid rgba(255,255,255,0.07)}
.login-tab{flex:1;padding:7px 0;border:none;background:rgba(255,255,255,0.03);color:#94a3b8;font-size:13px;font-weight:600;cursor:pointer;transition:all 0.15s;font-family:inherit}
.login-tab.active{background:rgba(16,185,129,0.1);color:#10b981}
.login-tab:hover:not(.active){background:rgba(255,255,255,0.05)}
.login-steps{display:flex;flex-direction:column;gap:6px;margin-bottom:6px}
.step{display:flex;align-items:center;gap:8px;font-size:12px;color:#94a3b8}
.step-num{width:20px;height:20px;border-radius:50%;background:rgba(16,185,129,0.12);color:#10b981;display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:700;flex-shrink:0}
.form-group{margin-bottom:10px}
.form-group label{display:block;font-size:11px;color:#64748b;margin-bottom:3px;font-weight:500}
.form-input{width:100%;padding:8px 10px;border-radius:6px;border:1px solid rgba(255,255,255,0.08);background:rgba(255,255,255,0.04);color:#e2e8f0;font-size:13px;outline:none;font-family:monospace;transition:border-color 0.15s}
.form-input:focus{border-color:rgba(16,185,129,0.3)}
.login-status{font-size:12px;color:#f59e0b;text-align:center;min-height:18px;margin-top:6px}
.modal-footer{display:flex;gap:8px;justify-content:flex-end;padding:0 22px 18px}

/* ── Responsive ── */
@media(max-width:768px){
  .workspace{flex-direction:column}
  .sidebar{width:100%;border-right:none;border-bottom:1px solid rgba(255,255,255,0.06)}
  .fav-refs-wrap{display:none}
  .step-btn{display:flex}
  .count-input{width:24px;background:transparent;border:none;padding:0}
  .input-area textarea{padding-bottom:44px}
  .input-footer{flex-wrap:wrap;gap:4px;padding:4px 6px}
  .input-footer-right{gap:4px}
}

/* ── Animations ── */
@keyframes spin{to{transform:rotate(360deg)}}
.loading{display:inline-block;width:14px;height:14px;border:2px solid rgba(255,255,255,0.15);border-top-color:#10b981;border-radius:50%;animation:spin 0.7s linear infinite}
.loading-lg{width:22px;height:22px;border-width:2.5px}

/* ── Toast ── */
.toast-container{position:fixed;top:16px;left:50%;transform:translateX(-50%);z-index:9999;display:flex;flex-direction:column;gap:8px;pointer-events:none;max-width:90vw}
.toast{padding:10px 18px;border-radius:8px;font-size:13px;font-weight:600;box-shadow:0 8px 24px rgba(0,0,0,0.4);pointer-events:auto;animation:toastIn 0.25s ease-out}
.toast-error{background:#dc2626;color:#fff}
@keyframes toastIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}

/* ── History ── */
.history-wrap{flex:1;overflow-y:auto;padding:16px 20px}

.history-list{max-width:780px;margin:0 auto}

.history-group{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:16px}
.history-group-date{grid-column:1/-1;font-size:12px;color:#64748b;padding:4px 0}

.history-item{display:flex;flex-direction:column;gap:6px;padding:10px;border-radius:10px;background:rgba(255,255,255,0.02);border:1px solid rgba(255,255,255,0.06);cursor:pointer;transition:all 0.12s;min-width:0}
.history-item:hover{background:rgba(255,255,255,0.04);border-color:rgba(16,185,129,0.2)}

.history-item-thumb{width:100%;max-width:100%;aspect-ratio:1;border-radius:6px;object-fit:cover;background:rgba(255,255,255,0.04);display:block}

.history-item-meta{font-size:11px;color:#64748b;display:flex;align-items:center;gap:8px}
.history-item-meta .ok{color:#10b981}
.history-item-meta .fail{color:#ef4444}
.history-item-del{background:none;border:none;color:#475569;cursor:pointer;padding:2px;display:inline-flex;align-items:center;border-radius:4px;margin-left:auto;transition:color 0.12s}
.history-item-del:hover{color:#ef4444;background:rgba(239,68,68,0.1)}

.history-item-body{display:flex;flex-direction:column;gap:3px}
.history-item-prompt{font-size:13px;color:#cbd5e1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;line-height:1.3}
.history-empty{text-align:center;padding:40px 20px;color:#475569;font-size:13px}

@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.4}}
.pending-item .history-item-thumb{animation:pulse 1.5s ease-in-out infinite;background:rgba(255,255,255,0.04)}
.pending-placeholder{display:flex;align-items:center;justify-content:center}

/* ── Lightbox ── */
.lightbox{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.85);z-index:9998;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(8px);cursor:zoom-out;opacity:0;pointer-events:none;transition:opacity 0.2s}
.lightbox.show{opacity:1;pointer-events:auto}
.lightbox-close{position:absolute;top:16px;right:24px;font-size:36px;color:rgba(255,255,255,0.5);cursor:pointer;line-height:1;transition:color 0.15s}
.lightbox-close:hover{color:#fff}
.lightbox-img{max-width:90vw;max-height:90vh;border-radius:8px;box-shadow:0 8px 40px rgba(0,0,0,0.6);object-fit:contain;cursor:zoom-out}