:root {
  --primary: #6c5ce7;
  --primary-light: #a29bfe;
  --primary-dark: #5a4bd1;
  --accent: #00cec9;
  --accent-light: #81ecec;
  --bg: #0f0f1a;
  --bg-card: #1a1a2e;
  --bg-card2: #16213e;
  --bg-input: #0f0f23;
  --text: #e0e0e0;
  --text-dim: #8a8a9a;
  --text-bright: #ffffff;
  --border: #2d2d44;
  --success: #00b894;
  --warning: #fdcb6e;
  --danger: #e17055;
  --gradient1: linear-gradient(135deg, #6c5ce7, #00cec9);
  --gradient2: linear-gradient(135deg, #fd79a8, #6c5ce7);
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --radius: 12px;
  --radius-sm: 8px;
}
* { margin:0; padding:0; box-sizing:border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.6; min-height: 100vh;
}
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

.header {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  border-bottom: 1px solid var(--border); padding: 16px 24px;
  position: sticky; top: 0; z-index: 100; backdrop-filter: blur(10px);
}
.header-inner { max-width: 1400px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: 12px; white-space: nowrap; }
.logo-icon { font-size: 28px; }
.logo-text h1 { font-size: 18px; background: var(--gradient1); -webkit-background-clip: text; -webkit-text-fill-color: transparent; font-weight: 700; }
.logo-text .sub { font-size: 11px; color: var(--text-dim); }
.header-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border: none; border-radius: var(--radius-sm); font-size: 13px; font-weight: 500; cursor: pointer; transition: all 0.2s; white-space: nowrap; font-family: inherit; }
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn-primary { background: var(--gradient1); color: white; box-shadow: 0 2px 12px rgba(108,92,231,0.3); }
.btn-primary:hover { box-shadow: 0 4px 20px rgba(108,92,231,0.5); }
.btn-accent { background: var(--gradient2); color: white; box-shadow: 0 2px 12px rgba(253,121,168,0.3); }
.btn-outline { background: transparent; color: var(--primary-light); border: 1px solid var(--primary); }
.btn-outline:hover { background: rgba(108,92,231,0.1); }
.btn-ghost { background: rgba(255,255,255,0.05); color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { background: rgba(255,255,255,0.1); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-icon { padding: 8px; min-width: 36px; justify-content: center; }
.btn-danger { background: var(--danger); color: white; }
.btn-success { background: var(--success); color: white; }
.btn-video { background: linear-gradient(135deg, #e17055, #fdcb6e); color: white; }

.tooltip-wrap { position: relative; display: inline-flex; align-items: center; }
.tooltip-icon { display: inline-flex; align-items: center; justify-content: center; width: 16px; height: 16px; border-radius: 50%; background: rgba(108,92,231,0.3); color: var(--primary-light); font-size: 10px; font-weight: 700; cursor: help; margin-left: 4px; flex-shrink: 0; }
.tooltip-popup { display: none; position: absolute; bottom: calc(100% + 8px); left: 50%; transform: translateX(-50%); background: var(--bg-card); border: 1px solid var(--primary); border-radius: var(--radius-sm); padding: 10px 14px; font-size: 12px; color: var(--text); line-height: 1.5; width: max-content; max-width: 300px; box-shadow: var(--shadow); z-index: 999; pointer-events: auto; }
.tooltip-popup::after { content: ''; position: absolute; top: 100%; left: 50%; transform: translateX(-50%); border: 6px solid transparent; border-top-color: var(--primary); }
.tooltip-wrap:hover .tooltip-popup, .tooltip-wrap.active .tooltip-popup { display: block; }

.form-group { margin-bottom: 16px; }
.form-label { display: flex; align-items: center; gap: 4px; font-size: 13px; font-weight: 500; color: var(--text); margin-bottom: 6px; }
.form-input, .form-textarea, .form-select { width: 100%; padding: 10px 14px; background: var(--bg-input); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text); font-size: 14px; font-family: inherit; transition: border-color 0.2s; }
.form-input:focus, .form-textarea:focus, .form-select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(108,92,231,0.15); }
.form-textarea { resize: vertical; min-height: 100px; }
.form-input[type="password"] { font-family: monospace; letter-spacing: 2px; }
.input-group { display: flex; gap: 4px; }
.input-group .form-input { flex: 1; }

.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin-bottom: 16px; }
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; gap: 12px; }
.card-title { font-size: 15px; font-weight: 600; color: var(--text-bright); display: flex; align-items: center; gap: 8px; }

.tabs { display: flex; gap: 4px; margin-bottom: 16px; background: var(--bg-input); padding: 4px; border-radius: var(--radius-sm); overflow-x: auto; }
.tab { padding: 8px 16px; border: none; background: transparent; color: var(--text-dim); font-size: 13px; font-weight: 500; cursor: pointer; border-radius: 6px; transition: all 0.2s; white-space: nowrap; font-family: inherit; }
.tab.active { background: var(--primary); color: white; }
.tab:hover:not(.active) { color: var(--text); background: rgba(255,255,255,0.05); }
.tab-content { display: none; }
.tab-content.active { display: block; }

.main { max-width: 1400px; margin: 0 auto; padding: 24px; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 1024px) { .main { grid-template-columns: 1fr; } }

.storyboard-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 16px; }
@media (max-width: 768px) { .storyboard-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .storyboard-grid { grid-template-columns: 1fr; } }

.storyboard-cell { background: var(--bg-input); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px; position: relative; transition: all 0.2s; }
.storyboard-cell:hover { border-color: var(--primary); box-shadow: 0 0 20px rgba(108,92,231,0.1); }
.cell-number { position: absolute; top: 8px; left: 8px; width: 24px; height: 24px; background: var(--gradient1); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700; color: white; z-index: 2; }
.cell-image-area { width: 100%; aspect-ratio: 16/9; background: rgba(255,255,255,0.03); border: 1px dashed var(--border); border-radius: 6px; display: flex; align-items: center; justify-content: center; margin-bottom: 8px; overflow: hidden; position: relative; cursor: pointer; }
.cell-image-area img, .cell-image-area video { width: 100%; height: 100%; object-fit: cover; border-radius: 6px; }
.cell-image-area .placeholder { color: var(--text-dim); font-size: 11px; text-align: center; }
.cell-meta { font-size: 11px; color: var(--text-dim); display: flex; flex-direction: column; gap: 3px; }
.cell-meta span { display: flex; align-items: center; gap: 4px; }
.cell-meta .label { color: var(--primary-light); font-weight: 500; min-width: 40px; }
.cell-meta textarea { width: 100%; background: transparent; border: none; color: var(--text); font-size: 11px; font-family: inherit; resize: none; line-height: 1.4; }
.cell-meta textarea:focus { outline: none; background: rgba(255,255,255,0.03); }
.cell-actions { display: flex; gap: 4px; margin-top: 6px; flex-wrap: wrap; }

.config-panel { background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-card2) 100%); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 0; overflow: hidden; transition: all 0.3s; }
.config-panel.collapsed .config-body { display: none; }
.config-header { padding: 14px 20px; display: flex; align-items: center; justify-content: space-between; cursor: pointer; user-select: none; border-bottom: 1px solid var(--border); background: rgba(255,255,255,0.02); }
.config-header:hover { background: rgba(255,255,255,0.04); }
.config-title { font-size: 14px; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.config-toggle { font-size: 12px; color: var(--text-dim); transition: transform 0.3s; }
.config-panel.collapsed .config-toggle { transform: rotate(180deg); }
.config-body { padding: 20px; }
.config-row { display: grid; grid-template-columns: 1fr 1fr 1fr auto; gap: 8px; align-items: end; margin-bottom: 12px; }
@media (max-width: 768px) { .config-row { grid-template-columns: 1fr; } }
.model-list { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.model-item { display: flex; align-items: center; gap: 10px; padding: 10px 14px; background: var(--bg-input); border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: 13px; transition: all 0.2s; cursor: pointer; }
.model-item:hover { border-color: var(--primary); }
.model-item.selected { border-color: var(--accent); background: rgba(0,206,201,0.08); }
.model-item .model-name { flex: 1; font-weight: 500; }
.model-item .model-url { color: var(--text-dim); font-size: 11px; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.model-item .model-actions { display: flex; gap: 4px; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.status-dot.connected { background: var(--success); }
.status-dot.disconnected { background: var(--danger); }
.status-dot.unknown { background: var(--warning); }

.modal-overlay { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.6); backdrop-filter: blur(4px); z-index: 1000; align-items: center; justify-content: center; padding: 24px; }
.modal-overlay.active { display: flex; }
.modal { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); width: 100%; max-width: 700px; max-height: 80vh; overflow-y: auto; box-shadow: var(--shadow); }
.modal-header { padding: 16px 20px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; background: var(--bg-card); z-index: 1; }
.modal-header h2 { font-size: 16px; display: flex; align-items: center; gap: 8px; }
.modal-body { padding: 20px; }
.modal-body h3 { font-size: 14px; color: var(--accent); margin: 16px 0 8px; }
.modal-body h3:first-child { margin-top: 0; }
.modal-body p { font-size: 13px; color: var(--text); margin-bottom: 8px; }
.modal-body ul { padding-left: 20px; margin-bottom: 8px; }
.modal-body li { font-size: 13px; color: var(--text); margin-bottom: 4px; }
.modal-close { background: none; border: none; color: var(--text-dim); font-size: 20px; cursor: pointer; padding: 4px; }
.modal-close:hover { color: var(--text); }

.toast-container { position: fixed; top: 80px; right: 24px; z-index: 2000; display: flex; flex-direction: column; gap: 8px; }
.toast { padding: 12px 18px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: 13px; box-shadow: var(--shadow); display: flex; align-items: center; gap: 8px; animation: slideIn 0.3s ease; max-width: 360px; }
.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--danger); }
.toast.info { border-color: var(--primary); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

.spinner { width: 20px; height: 20px; border: 2px solid var(--border); border-top-color: var(--primary); border-radius: 50%; animation: spin 0.8s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

.file-drop { border: 2px dashed var(--border); border-radius: var(--radius-sm); padding: 24px; text-align: center; cursor: pointer; transition: all 0.2s; }
.file-drop:hover, .file-drop.dragover { border-color: var(--primary); background: rgba(108,92,231,0.05); }
.file-drop .icon { font-size: 28px; margin-bottom: 8px; }
.file-drop .text { font-size: 13px; color: var(--text-dim); }

.footer { text-align: center; padding: 24px; border-top: 1px solid var(--border); margin-top: 40px; font-size: 12px; color: var(--text-dim); }

.badge { display: inline-flex; align-items: center; gap: 4px; padding: 2px 8px; border-radius: 12px; font-size: 11px; font-weight: 500; }
.badge-primary { background: rgba(108,92,231,0.2); color: var(--primary-light); }
.badge-accent { background: rgba(0,206,201,0.2); color: var(--accent-light); }

.export-dropdown { position: relative; display: inline-block; }
.export-menu { display: none; position: absolute; top: 100%; right: 0; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 6px; min-width: 220px; box-shadow: var(--shadow); z-index: 50; margin-top: 4px; }
.export-menu.active { display: block; }
.export-item { display: flex; align-items: center; gap: 8px; padding: 8px 12px; border: none; background: none; color: var(--text); font-size: 13px; cursor: pointer; border-radius: 6px; width: 100%; font-family: inherit; text-align: left; }
.export-item:hover { background: rgba(108,92,231,0.15); }
.export-divider { height: 1px; background: var(--border); margin: 4px 0; }

.spec-bar { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 8px; margin-bottom: 16px; }
.spec-item { background: var(--bg-input); border: 1px solid var(--border); border-radius: 6px; padding: 8px 12px; font-size: 12px; }
.spec-item .spec-label { color: var(--text-dim); font-size: 10px; text-transform: uppercase; letter-spacing: 0.5px; }
.spec-item .spec-value { color: var(--accent-light); font-weight: 500; margin-top: 2px; }
.spec-item select, .spec-item input { width: 100%; background: transparent; border: none; color: var(--accent-light); font-size: 12px; font-family: inherit; padding: 0; margin-top: 2px; }
.spec-item select:focus, .spec-item input:focus { outline: none; }
.spec-item select option { background: var(--bg-card); color: var(--text); }

.prompt-box { background: var(--bg-input); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px; font-size: 12px; color: var(--text); font-family: 'SF Mono', 'Fira Code', monospace; max-height: 200px; overflow-y: auto; white-space: pre-wrap; word-break: break-all; line-height: 1.5; }

.full-width { grid-column: 1 / -1; }
.fade-in { animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* Video Log Panel */
.log-panel { background: var(--bg-input); border: 1px solid var(--border); border-radius: var(--radius-sm); margin-top: 12px; overflow: hidden; }
.log-panel-header { padding: 10px 14px; display: flex; align-items: center; justify-content: space-between; cursor: pointer; user-select: none; background: rgba(255,255,255,0.02); border-bottom: 1px solid var(--border); }
.log-panel-header:hover { background: rgba(255,255,255,0.04); }
.log-panel-header h3 { font-size: 13px; color: var(--text); display: flex; align-items: center; gap: 6px; }
.log-panel-body { max-height: 250px; overflow-y: auto; padding: 8px; font-family: 'SF Mono', 'Fira Code', monospace; font-size: 11px; line-height: 1.6; }
.log-panel.collapsed .log-panel-body { display: none; }
.log-entry { padding: 3px 6px; border-bottom: 1px solid rgba(255,255,255,0.03); display: flex; align-items: flex-start; gap: 6px; }
.log-entry:last-child { border-bottom: none; }
.log-entry.info .log-msg { color: var(--primary-light); }
.log-entry.success .log-msg { color: var(--success); }
.log-entry.error .log-msg { color: var(--danger); }
.log-entry.warning .log-msg { color: var(--warning); }
.log-entry.req .log-msg { color: var(--accent-light); }
.log-entry.poll .log-msg { color: var(--text-dim); }
.log-entry.done .log-msg { color: var(--success); }
.log-time { color: var(--text-dim); font-size: 10px; white-space: nowrap; min-width: 60px; }
.log-icon { font-size: 12px; }
.log-msg { flex: 1; word-break: break-all; }
.log-badge { display: inline-block; padding: 0 4px; border-radius: 3px; font-size: 9px; font-weight: 700; margin-right: 4px; }
.log-badge.get { background: rgba(16,185,129,.15); color: var(--success); }
.log-badge.post { background: rgba(99,102,241,.15); color: var(--primary-light); }
.log-badge.status { background: rgba(6,182,212,.15); color: var(--accent-light); }
.log-badge.err { background: rgba(239,68,68,.15); color: var(--danger); }
.log-detail { padding: 4px 6px 4px 30px; font-size: 10px; color: var(--text-dim); max-height: 200px; overflow: auto; white-space: pre-wrap; word-break: break-all; cursor: pointer; }
.log-progress-bar { height: 6px; background: rgba(255,255,255,0.1); border-radius: 3px; margin: 6px; overflow: hidden; }
.log-progress-bar-fill { height: 100%; background: var(--gradient1); transition: width 0.5s; border-radius: 3px; }

/* Video generation status in cells */
.cell-video-status { font-size: 10px; padding: 4px 6px; border-radius: 4px; margin-top: 4px; }
.cell-video-status.generating { background: rgba(108,92,231,0.15); color: var(--primary-light); }
.cell-video-status.done { background: rgba(0,184,148,0.15); color: var(--success); }
.cell-video-status.error { background: rgba(225,112,85,0.15); color: var(--danger); }

/* Model presets */
.preset-row { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; margin-bottom: 10px; }
.preset-label { font-size: 12px; color: var(--text-dim); }
.preset-row .btn { font-size: 11px; padding: 4px 10px; }

/* Empty state */
.empty-state { grid-column: 1 / -1; text-align: center; padding: 72px 20px; border: 1px dashed var(--border); border-radius: var(--radius-sm); background: rgba(255,255,255,0.02); }
.empty-state .empty-icon { font-size: 44px; margin-bottom: 12px; }
.empty-state .empty-title { font-size: 16px; font-weight: 600; color: var(--text-bright); margin-bottom: 6px; }
.empty-state .empty-desc { font-size: 13px; color: var(--text-dim); max-width: 420px; margin: 0 auto; }