:root{--bg:#0A1A1A;--bg-card:#122828;--bg-input:#1a3232;--border:#2a4444;--text:#e4f0f0;--text-sec:#88b0b0;--text-muted:#5a8888;--teal:#00CEC9;--teal-bg:rgba(0,206,201,0.1);--accent:#E17055;--radius:12px;--radius-sm:6px;--font:'Inter',-apple-system,sans-serif;--transition:200ms ease}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased}
.header{background:rgba(10,26,26,0.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}
.header-inner{max-width:880px;margin:0 auto;padding:.55rem 1rem;display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:.3rem}.logo-icon{font-size:1.1rem}.logo-text{font-size:.95rem;font-weight:800;color:var(--teal)}
.btn{display:inline-flex;align-items:center;gap:.2rem;padding:.38rem .65rem;border:none;border-radius:var(--radius-sm);font-family:var(--font);font-size:.78rem;font-weight:600;cursor:pointer;transition:all var(--transition)}
.btn-primary{background:var(--teal);color:#0A1A1A}.btn-primary:hover{filter:brightness(1.1)}
.toast{position:fixed;bottom:2rem;left:50%;transform:translateX(-50%) translateY(120%);background:var(--bg-card);color:var(--text);padding:.5rem .8rem;border-radius:var(--radius);border:1px solid var(--border);font-size:.78rem;z-index:1000;opacity:0;transition:all 300ms ease}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.main{max-width:880px;margin:0 auto;padding:.75rem 1rem;display:grid;grid-template-columns:1fr 260px;gap:.65rem}
@media(max-width:640px){.main{grid-template-columns:1fr}}
.editor{display:flex;justify-content:center;align-items:flex-start}
canvas{max-width:100%;border-radius:var(--radius);border:1px solid var(--border)}
.controls{display:flex;flex-direction:column;gap:.3rem}
.field{display:flex;flex-direction:column;gap:.1rem}
.label{font-size:.7rem;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}
.input{padding:.38rem .5rem;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);font-family:var(--font);font-size:.78rem;color:var(--text)}.input:focus{outline:none;border-color:var(--teal)}
.row{display:flex;gap:.3rem}.row .field{flex:1}
.slider{width:100%;accent-color:var(--teal)}
.color-pick{width:100%;height:32px;border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;background:var(--bg-input);padding:2px}
.file-input{width:100%;font-size:.72rem;color:var(--text-sec)}
.template-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.2rem}
.tpl-btn{aspect-ratio:1;border:2px solid var(--border);border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:.7rem;color:var(--text-muted);background:var(--bg-input);transition:all var(--transition);overflow:hidden}
.tpl-btn:hover{border-color:var(--teal);color:var(--teal)}
.tpl-btn.active{border-color:var(--teal)}
.tpl-btn canvas{width:100%;height:100%}