:root{--bg:#07111f;--card:#0f1d30;--line:#263c58;--text:#edf5ff;--muted:#a9bad0;--accent:#8b5cf6}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,Arial;background:radial-gradient(circle at 10% 0,#172554 0,transparent 32%),radial-gradient(circle at 90% 15%,#4c1d95 0,transparent 28%),var(--bg);color:var(--text);min-height:100vh}.b2-nav{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;gap:20px;align-items:center;padding:16px 4vw;background:#07111fe8;backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.b2-nav a{color:#dbeafe;text-decoration:none;margin:0 8px;font-size:14px}.b2-nav .brand{font-size:19px}.b2-nav b{color:#c4b5fd}.b2-wrap{width:min(1180px,92%);margin:auto;padding:38px 0 70px}.b2-hero{padding:38px;border:1px solid #385177;border-radius:28px;background:linear-gradient(135deg,#111f35dd,#2e1065aa);box-shadow:0 25px 70px #0007;margin-bottom:26px}.b2-hero h1{font-size:clamp(32px,5vw,58px);margin:10px 0}.b2-hero p{color:#cbd5e1;font-size:18px}.badge{display:inline-block;padding:8px 12px;border-radius:999px;background:#7c3aed33;border:1px solid #a78bfa;color:#ddd6fe;font-weight:700;font-size:12px}.tool-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.tool-card,.control-panel,.preview-panel{background:#0f1d30e8;border:1px solid var(--line);border-radius:22px;padding:24px;box-shadow:0 16px 40px #0004}.tool-card.wide{grid-column:1/-1}.tool-card h2{margin-top:0}.tool-card p,.preview-panel p{color:var(--muted)}input,select,button{width:100%;padding:12px 14px;margin:8px 0;border-radius:12px;border:1px solid #36506f;background:#091523;color:var(--text)}button{background:linear-gradient(135deg,#7c3aed,#4f46e5);font-weight:800;cursor:pointer;border:0}button.secondary{background:#17283e;border:1px solid #456182}button:disabled{opacity:.5;cursor:not-allowed}.status{min-height:22px;padding-top:5px;font-size:14px}.status.ok{color:#86efac}.status.error{color:#fca5a5}.editor-layout{display:grid;grid-template-columns:360px 1fr;gap:22px}.control-panel label{display:block;color:#dbeafe;margin:10px 0}.control-panel label input[type=checkbox]{width:auto;margin-right:8px}.two{display:grid;grid-template-columns:1fr 1fr;gap:10px}.preview-panel{display:flex;min-height:520px;flex-direction:column;align-items:center;justify-content:center;overflow:auto}canvas{max-width:100%;height:auto;background:white;border-radius:10px;box-shadow:0 10px 30px #0006}@media(max-width:800px){.b2-nav{align-items:flex-start;flex-direction:column}.b2-nav div{display:flex;overflow:auto;max-width:100%;padding-bottom:4px}.tool-grid,.editor-layout{grid-template-columns:1fr}.tool-card.wide{grid-column:auto}.b2-hero{padding:25px}.preview-panel{min-height:350px}}