:root{--color-bg: #f5f6fa;--color-surface: #ffffff;--color-border: #e2e4ec;--color-text: #1c1e27;--color-text-muted: #6b7280;--color-primary: #6366f1;--color-primary-hover: #4f52e0;--color-danger: #dc2626;--color-success: #16a34a;--radius: 10px;--shadow: 0 1px 3px rgba(15, 15, 35, .08), 0 1px 2px rgba(15, 15, 35, .06);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica Neue,PingFang TC,Microsoft JhengHei,Arial,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--color-bg);color:var(--color-text)}button,input,select,textarea{font-family:inherit;font-size:14px}.app-shell{min-height:100%;display:flex;flex-direction:column}.app-header{display:flex;align-items:center;gap:24px;padding:12px 24px;background:var(--color-surface);border-bottom:1px solid var(--color-border);position:sticky;top:0;z-index:10}.app-header__brand{font-weight:700;font-size:16px}.app-header__nav{display:flex;gap:16px;flex:1}.app-header__nav a{color:var(--color-text-muted);text-decoration:none;font-weight:500;padding:6px 4px;border-bottom:2px solid transparent}.app-header__nav a.active{color:var(--color-primary);border-bottom-color:var(--color-primary)}.app-header__user{display:flex;align-items:center;gap:12px}.app-header__email{color:var(--color-text-muted);font-size:13px}.app-main{flex:1;padding:24px;max-width:1100px;width:100%;margin:0 auto}.page-center{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:9px 18px;border-radius:8px;border:1px solid transparent;font-weight:600;cursor:pointer;transition:background-color .15s ease,opacity .15s ease}.btn:disabled{opacity:.6;cursor:not-allowed}.btn--primary{background:var(--color-primary);color:#fff}.btn--primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn--ghost{background:transparent;border-color:var(--color-border);color:var(--color-text)}.btn--ghost:hover{background:var(--color-bg)}.btn--danger{background:transparent;border-color:var(--color-danger);color:var(--color-danger);align-self:flex-start}.btn--danger:hover:not(:disabled){background:var(--color-danger);color:#fff}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.field--checkbox{flex-direction:row;align-items:center}.field-label{font-weight:600;font-size:13px;color:var(--color-text)}.field-hint{font-weight:400;color:var(--color-text-muted)}.input,.select,.textarea{border:1px solid var(--color-border);border-radius:8px;padding:9px 10px;background:var(--color-surface);color:var(--color-text);width:100%}.input:focus,.select:focus,.textarea:focus{outline:2px solid var(--color-primary);outline-offset:1px}.textarea{resize:vertical;min-height:90px}.hint{color:var(--color-text-muted);font-size:13px}.error-text{color:var(--color-danger);font-size:13px;font-weight:500}.link-button{background:none;border:none;color:var(--color-primary);cursor:pointer;padding:0 0 0 6px;font-size:13px;font-weight:600}.login-card{width:100%;max-width:360px}.login-card h1{margin:0 0 4px;font-size:20px}.login-card .hint{margin:0 0 20px}.tabs{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap}.tab{padding:8px 16px;border-radius:999px;border:1px solid var(--color-border);background:var(--color-surface);color:var(--color-text-muted);cursor:pointer;font-weight:600}.tab--active{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.generate-tab{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:20px;align-items:start}@media (max-width: 840px){.generate-tab{grid-template-columns:1fr}}.generate-tab__result{min-height:200px}.model-picker{margin-bottom:16px}.model-picker__meta{display:flex;flex-direction:column;gap:2px;margin-top:6px;font-size:12px;color:var(--color-text-muted)}.result-outputs{display:flex;flex-direction:column;gap:12px}.result-image{max-width:100%;border-radius:8px;border:1px solid var(--color-border)}.video-player{max-width:100%;border-radius:8px;border:1px solid var(--color-border);background:#000}.dropzone-field{margin-bottom:16px}.dropzone{border:2px dashed var(--color-border);border-radius:var(--radius);padding:24px;text-align:center;color:var(--color-text-muted);cursor:pointer;transition:border-color .15s ease,background-color .15s ease}.dropzone:hover,.dropzone--active{border-color:var(--color-primary);background:#6366f10d}.dropzone p{margin:0;font-size:13px}.dropzone-previews{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.dropzone-preview{position:relative;width:72px;height:72px;border-radius:8px;overflow:hidden;border:1px solid var(--color-border)}.dropzone-preview img{width:100%;height:100%;object-fit:cover;display:block}.dropzone-preview__remove{position:absolute;top:2px;right:2px;width:20px;height:20px;border-radius:50%;border:none;background:#0009;color:#fff;cursor:pointer;line-height:1;font-size:14px}.history-page__summary{display:flex;align-items:baseline;gap:12px;margin-bottom:16px}.history-page__label{color:var(--color-text-muted);font-weight:600}.history-page__total{font-size:24px;font-weight:700;color:var(--color-primary)}.history-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}.history-card{padding:0;overflow:hidden;display:flex;flex-direction:column}.history-card__media{aspect-ratio:4 / 3;background:#0f0f1a;display:flex;align-items:center;justify-content:center}.history-card__media img,.history-card__media video{width:100%;height:100%;object-fit:cover}.history-card__status-badge{color:#fff;font-size:13px;font-weight:600;padding:6px 12px;border-radius:999px;background:var(--color-text-muted)}.history-card__status-badge--failed{background:var(--color-danger)}.history-card__status-badge--completed{background:var(--color-success)}.history-card__body{padding:14px;display:flex;flex-direction:column;gap:8px}.history-card__prompt{margin:0;font-size:13px;line-height:1.5}.history-card__meta{display:flex;justify-content:space-between;gap:8px;font-size:12px;color:var(--color-text-muted)}