:root{--bg: #f6f8fd;--bg-grad: radial-gradient(1100px 540px at 100% -8%, #e9edff 0%, rgba(233, 237, 255, 0) 60%), radial-gradient(900px 480px at -8% 4%, #e6fbff 0%, rgba(230, 251, 255, 0) 55%), radial-gradient(800px 520px at 60% 110%, #fdeeffff 0%, rgba(253, 238, 255, 0) 60%), var(--bg);--panel: #ffffff;--panel-2: #f2f5fc;--border: #e6eaf3;--border-strong: #d7dcea;--text: #141a29;--muted: #6a7488;--accent: #6d5efc;--accent-soft: #f1efff;--accent-2: #0bb6c9;--danger: #ef4444;--ring: rgba(109, 94, 252, .22);--grad-accent: linear-gradient(135deg, #6d5efc 0%, #8b5cf6 55%, #a855f7 100%);--shadow-sm: 0 1px 2px rgba(20, 26, 41, .04), 0 1px 3px rgba(20, 26, 41, .06);--shadow-md: 0 6px 16px rgba(20, 26, 41, .08), 0 2px 6px rgba(20, 26, 41, .04);--shadow-lg: 0 18px 40px rgba(76, 56, 200, .16)}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg-grad);background-attachment:fixed;color:var(--text);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}h1,h2,h3{letter-spacing:-.02em}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button{font:inherit;cursor:pointer;border:1px solid var(--border-strong);background:#fff;color:var(--text);padding:9px 15px;border-radius:10px;box-shadow:var(--shadow-sm);transition:transform .12s ease,box-shadow .15s ease,background .15s ease,border-color .15s ease}button:hover:not(:disabled){border-color:var(--accent);box-shadow:var(--shadow-md);transform:translateY(-1px)}button:active:not(:disabled){transform:translateY(0)}button:disabled{opacity:.5;cursor:not-allowed;box-shadow:none}button.primary{background:var(--grad-accent);border:none;color:#fff;font-weight:600;box-shadow:0 6px 16px #6d5efc52}button.primary:hover:not(:disabled){background:var(--grad-accent);filter:brightness(1.05);box-shadow:0 10px 24px #6d5efc6b;transform:translateY(-1px)}input,textarea,select{font:inherit;width:100%;background:#fff;color:var(--text);border:1px solid var(--border-strong);border-radius:10px;padding:11px 13px;transition:border-color .15s ease,box-shadow .15s ease}input::placeholder,textarea::placeholder{color:#9aa3b4}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px var(--ring)}textarea{resize:vertical;min-height:220px}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:14px 24px;border-bottom:1px solid var(--border);background:#ffffffc7;backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px)}.brand{font-weight:800;font-size:19px;letter-spacing:-.02em;background:var(--grad-accent);-webkit-background-clip:text;background-clip:text;color:transparent}.brand .dot{-webkit-text-fill-color:var(--accent-2)}.container{max-width:1100px;margin:0 auto;padding:32px 24px}.wide{max-width:1400px}.row{display:flex;gap:12px;align-items:center}.spread{justify-content:space-between}.muted{color:var(--muted)}.pill{font-size:12px;font-weight:600;padding:4px 11px;border-radius:999px;border:1px solid var(--border);background:var(--accent-soft);color:var(--accent)}.card{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:20px;box-shadow:var(--shadow-sm)}.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}.viz-card{cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}.viz-card:hover{border-color:var(--accent);box-shadow:var(--shadow-lg);transform:translateY(-3px)}.preset-grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}.preset{border:1px solid var(--border);border-radius:14px;padding:14px;background:#fff;text-align:left;box-shadow:var(--shadow-sm);transition:transform .12s ease,box-shadow .15s ease,border-color .15s ease,background .15s ease}.preset:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--accent)}.preset.selected{border-color:var(--accent);background:linear-gradient(180deg,var(--accent-soft),#fff);box-shadow:0 0 0 3px var(--ring)}.preset b{display:block;margin-bottom:4px}.preset small{color:var(--muted)}.banner{border-radius:12px;padding:12px 15px;margin-bottom:14px;font-size:14px}.banner.error{background:#fef2f2;border:1px solid #fecaca;color:#b42318}.banner.info{background:var(--accent-soft);border:1px solid #d9d4ff;color:#5b4bd6}.viewer-frame{width:100%;height:72vh;border:1px solid var(--border);border-radius:16px;background:#fff;box-shadow:var(--shadow-md)}button.danger{border-color:#f3c9c9;color:var(--danger);background:#fff}button.danger:hover:not(:disabled){background:#fef2f2;border-color:var(--danger)}.tabs{display:flex;gap:4px;border-bottom:1px solid var(--border)}.tab{border:none;border-bottom:2px solid transparent;border-radius:0;background:transparent;color:var(--muted);padding:10px 16px;box-shadow:none;font-weight:600}.tab:hover:not(:disabled){background:transparent;color:var(--text);transform:none;box-shadow:none}.tab.active{color:var(--accent);border-bottom-color:var(--accent)}.table{width:100%;border-collapse:collapse}.table th,.table td{text-align:left;padding:12px 8px;border-bottom:1px solid var(--border);vertical-align:top}.table th{color:var(--muted);font-weight:600;font-size:13px}.table tr:last-child td{border-bottom:none}.bars{display:flex;align-items:flex-end;gap:6px;height:140px}.bar-col{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:4px;height:100%}.bar{width:100%;min-height:2px;background:var(--grad-accent);border-radius:6px 6px 0 0}.bar-col small{font-size:10px}.center{min-height:80vh;display:grid;place-items:center}.stack{display:flex;flex-direction:column;gap:14px}.spinner{width:18px;height:18px;border:2px solid var(--border-strong);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}