:root{--accent: #6266f1;--accent-soft: rgba(98, 102, 241, .12);--accent-strong: #4f52e0;--bg: #f5f5fa;--bg-elevated: #ffffff;--bg-sunken: #ececf4;--text: #17171f;--text-secondary: #6b6b78;--border: rgba(23, 23, 31, .08);--danger: #e5484d;--success: #30a46c;--shadow: 0 1px 3px rgba(0, 0, 0, .07), 0 8px 24px rgba(0, 0, 0, .05);--radius-card: 16px;--radius-control: 12px;--sidebar-w: 232px;color-scheme:light dark}@media (prefers-color-scheme: dark){:root{--bg: #0d0d14;--bg-elevated: #17171f;--bg-sunken: #08080d;--text: #f2f2f7;--text-secondary: #9d9daa;--border: rgba(242, 242, 247, .09);--shadow: 0 1px 3px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .35)}}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button,input,textarea,select{font:inherit;color:inherit}a{color:var(--accent);text-decoration:none}::selection{background:var(--accent-soft)}.shell{display:flex;min-height:100%}.sidebar{width:var(--sidebar-w);flex-shrink:0;background:var(--bg-elevated);border-right:1px solid var(--border);padding:20px 12px;display:flex;flex-direction:column;gap:4px;position:sticky;top:0;height:100vh}.sidebar .brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;padding:4px 12px 16px}.sidebar .brand .logo{width:28px;height:28px;border-radius:8px;background:var(--accent);color:#fff;display:grid;place-items:center;font-size:16px;font-weight:800}.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-control);color:var(--text-secondary);font-weight:500;border:none;background:transparent;cursor:pointer;text-align:left;width:100%}.nav-item:hover{background:var(--accent-soft);color:var(--text)}.nav-item.active{background:var(--accent-soft);color:var(--accent);font-weight:600}.sidebar .spacer{flex:1}.main{flex:1;min-width:0;padding:24px clamp(16px,4vw,40px) 64px;max-width:980px;margin:0 auto;width:100%}.page-title{font-size:26px;font-weight:700;margin:8px 0 20px}.card{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-card);box-shadow:var(--shadow);padding:18px;margin-bottom:14px}.section-title{font-size:14px;font-weight:600;color:var(--text-secondary);margin:0 0 10px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:var(--radius-control);padding:12px 18px;font-weight:600;cursor:pointer;transition:filter .12s ease,transform .05s ease;background:var(--accent-soft);color:var(--accent)}.btn:hover{filter:brightness(1.05)}.btn:active{transform:scale(.985)}.btn:disabled{opacity:.45;cursor:default}.btn.primary{background:var(--accent);color:#fff;width:100%;padding:14px 18px;font-size:16px}.btn.ghost{background:transparent;color:var(--text-secondary)}.btn.danger{background:#e5484d1f;color:var(--danger)}.chip-row{display:flex;gap:10px;flex-wrap:wrap}.chip{border:none;border-radius:var(--radius-control);padding:12px 16px;font-weight:600;cursor:pointer;background:var(--accent-soft);color:var(--text);flex:1;min-width:72px}.chip.selected{background:var(--accent);color:#fff}.chip .sub{display:block;font-size:11px;font-weight:500;opacity:.85;margin-top:2px}.prompt-field{width:100%;min-height:96px;resize:vertical;border:1px solid var(--border);border-radius:var(--radius-control);background:var(--bg-sunken);padding:12px 14px;outline:none}.prompt-field:focus{border-color:var(--accent)}.input{width:100%;border:1px solid var(--border);border-radius:var(--radius-control);background:var(--bg-sunken);padding:12px 14px;outline:none}.input:focus{border-color:var(--accent)}.spinner{width:18px;height:18px;border:2.5px solid var(--accent-soft);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.balance-pill{display:inline-flex;align-items:center;gap:6px;background:var(--accent-soft);color:var(--accent);font-weight:700;border-radius:999px;padding:6px 14px}.error-banner{background:#e5484d1a;color:var(--danger);border-radius:var(--radius-control);padding:10px 14px;font-size:14px;margin-bottom:12px}.result-media{width:100%;border-radius:var(--radius-card);display:block}.dropzone{border:2px dashed var(--border);border-radius:var(--radius-card);padding:28px;text-align:center;color:var(--text-secondary);cursor:pointer;background:var(--bg-sunken)}.dropzone.filled{padding:0;border-style:solid;overflow:hidden}.dropzone img{width:100%;max-height:260px;object-fit:contain;display:block}@media (max-width: 760px){.shell{flex-direction:column}.sidebar{width:100%;height:auto;position:fixed;bottom:0;top:auto;flex-direction:row;padding:6px 8px calc(6px + env(safe-area-inset-bottom));border-right:none;border-top:1px solid var(--border);z-index:50;background:var(--bg-elevated)}.sidebar .brand,.sidebar .spacer,.sidebar .sidebar-footer{display:none}.nav-item{flex-direction:column;gap:2px;font-size:11px;padding:8px 4px}.main{padding-bottom:96px}}