*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#DC2626;--primary-light:#EF4444;--accent:#FCA5A5;--bg:#1A0A0A;--bg-card:rgba(30,12,12,0.75);--border:rgba(220,38,38,0.15);--border-hover:rgba(220,38,38,0.3);--text:#F5E8E8;--text-muted:#B89A9A;--text-dim:#7A5C5C;--radius:12px;--radius-sm:8px;--transition:250ms ease;--font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}
html{font-size:16px;-webkit-font-smoothing:antialiased}
body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;line-height:1.6}
body::before{content:'';position:fixed;inset:0;pointer-events:none;background:radial-gradient(ellipse 50% 40% at 20% 10%,rgba(220,38,38,0.05),transparent 70%),radial-gradient(ellipse 40% 50% at 80% 90%,rgba(252,165,165,0.03),transparent 70%)}
.app{position:relative;z-index:1;max-width:1100px;margin:0 auto;padding:0 20px}
.hidden{display:none!important}

.header{padding:32px 0 16px;text-align:center}
.logo{display:flex;align-items:center;justify-content:center;gap:10px;margin-bottom:6px}
.logo h1{font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.subtitle{color:var(--text-muted);font-size:0.9rem}

.main{padding-bottom:40px}
.layout{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}

.panel{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;backdrop-filter:blur(12px);position:sticky;top:20px}
.options-panel{position:static;max-height:80vh;overflow-y:auto}
.panel-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.panel-header h2{font-size:1rem;font-weight:600}

/* Option Groups */
.option-group{margin-bottom:16px}
.option-group-title{font-size:0.8rem;font-weight:600;color:var(--accent);text-transform:uppercase;letter-spacing:0.5px;margin-bottom:8px;padding-bottom:4px;border-bottom:1px solid var(--border)}
.option-item{display:flex;align-items:flex-start;gap:10px;padding:8px 10px;border-radius:var(--radius-sm);transition:background var(--transition);cursor:pointer}
.option-item:hover{background:rgba(220,38,38,0.06)}
.option-item label{display:flex;align-items:flex-start;gap:10px;cursor:pointer;flex:1}
.option-item input[type="checkbox"]{accent-color:var(--primary);margin-top:3px;flex-shrink:0}
.option-name{font-size:0.85rem;font-weight:500}
.option-desc{font-size:0.75rem;color:var(--text-dim);margin-top:2px}
.option-select{display:flex;align-items:center;gap:8px;padding:8px 10px}
.option-select label{font-size:0.85rem;font-weight:500;min-width:100px}

select{background:rgba(0,0,0,0.3);border:1px solid var(--border);border-radius:var(--radius-sm);padding:6px 10px;font-family:var(--font);font-size:0.82rem;color:var(--text);cursor:pointer}
select:focus{outline:none;border-color:var(--primary)}

.import-section{margin-top:12px;padding-top:12px;border-top:1px solid var(--border)}

/* Warnings */
.warnings{margin-bottom:10px}
.warning-item{display:flex;align-items:center;gap:8px;padding:8px 12px;background:rgba(251,191,36,0.08);border:1px solid rgba(251,191,36,0.2);border-radius:var(--radius-sm);font-size:0.8rem;color:#FBBF24;margin-bottom:6px}

.code-block{background:rgba(10,4,4,0.8);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px 18px;overflow-x:auto;font-family:'SF Mono','Fira Code',monospace;font-size:0.8rem;line-height:1.7;color:var(--text-muted);white-space:pre;tab-size:2;max-height:60vh;overflow-y:auto}

.btn{display:inline-flex;align-items:center;gap:6px;font-family:var(--font);font-size:0.85rem;font-weight:500;padding:8px 14px;border-radius:var(--radius-sm);border:none;cursor:pointer;transition:all var(--transition)}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;box-shadow:0 4px 14px rgba(220,38,38,0.3)}
.btn-primary:hover{box-shadow:0 6px 20px rgba(220,38,38,0.45);transform:translateY(-1px)}
.btn-ghost{background:rgba(220,38,38,0.08);color:var(--accent);border:1px solid var(--border)}
.btn-ghost:hover{background:rgba(220,38,38,0.15)}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn-group{display:flex;gap:8px}

.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);padding:10px 20px;background:var(--primary);color:#fff;border-radius:var(--radius-sm);font-size:0.85rem;font-weight:500;box-shadow:0 8px 32px rgba(220,38,38,0.4);opacity:0;transition:all 300ms ease;z-index:100;pointer-events:none}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.footer{text-align:center;padding:16px 0 32px;color:var(--text-dim);font-size:0.75rem}

@media(max-width:768px){.layout{grid-template-columns:1fr}.panel{position:static}.header{padding:24px 0 12px}.logo h1{font-size:1.3rem}}