*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#2563EB;--primary-dim:rgba(37,99,235,.12);
  --secondary:#93C5FD;--accent:#F97316;--accent-dim:rgba(249,115,22,.12);
  --bg:#0A1628;--surface:#111D33;--surface2:#1A2744;
  --border:rgba(37,99,235,.1);--text:#E2E8F0;--text-dim:#94A3B8;
  --radius:12px;--font:'Inter',system-ui,sans-serif;--mono:'Fira Code',monospace;
  --transition:250ms ease;
}
html{font-size:16px}
body{background:var(--bg);color:var(--text);font-family:var(--font);min-height:100vh}
.header{position:sticky;top:0;z-index:100;backdrop-filter:blur(16px);background:rgba(10,22,40,.8);border-bottom:1px solid var(--border)}
.header-inner{max-width:1000px;margin:0 auto;padding:.75rem 1.5rem;display:flex;align-items:center}
.logo{display:flex;align-items:center;gap:.5rem}
.logo-icon{font-size:1.25rem}
.logo h1{font-size:1.1rem;font-weight:700;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.btn{display:inline-flex;align-items:center;gap:.3rem;padding:.45rem .85rem;border:none;border-radius:8px;font-size:.8rem;font-weight:600;cursor:pointer;transition:all var(--transition);font-family:var(--font)}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff}
.btn-primary:hover{filter:brightness(1.15);transform:translateY(-1px)}
.btn-sm{background:var(--surface2);color:var(--text-dim);border:1px solid var(--border)}
.btn-sm:hover{border-color:var(--primary);color:var(--primary)}
.main{max-width:1000px;margin:0 auto;padding:1.5rem}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}
.glass-card{background:rgba(17,29,51,.6);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem}
.section-title{font-size:.9rem;font-weight:700;margin-bottom:.75rem;display:flex;align-items:center;gap:.5rem}
.section-title::before{content:'';width:4px;height:18px;background:linear-gradient(to bottom,var(--primary),var(--secondary));border-radius:2px}
textarea{width:100%;background:var(--surface2);border:1px solid var(--border);border-radius:8px;padding:.65rem;color:var(--text);font-family:var(--mono);font-size:.75rem;outline:none;resize:vertical;margin-bottom:.75rem}
textarea:focus{border-color:var(--primary)}
.actions-row{display:flex;gap:.5rem}
.canvas-wrap{background:var(--surface);border:1px solid var(--border);border-radius:8px;overflow:hidden;margin-bottom:.75rem;position:relative}
canvas{display:block;width:100%;height:400px}
.toast{position:fixed;bottom:2rem;left:50%;transform:translateX(-50%) translateY(100px);background:var(--surface2);color:var(--text);padding:.6rem 1.25rem;border-radius:var(--radius);font-size:.8rem;font-weight:500;border:1px solid var(--primary);box-shadow:0 8px 32px rgba(0,0,0,.4);transition:transform 300ms ease;z-index:9999;pointer-events:none}
.toast.show{transform:translateX(-50%) translateY(0)}
@media(max-width:700px){.two-col{grid-template-columns:1fr}.main{padding:1rem}}