*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#0f0e17;--surface:#1a1929;--surface2:#232136;--border:#2e2b45;
  --text:#e2e0f0;--text-dim:#9896b0;--primary:#6C3AED;--primary-light:#8B5CF6;
  --accent:#F59E0B;--success:#10B981;--radius:12px;--radius-sm:8px;
  --shadow:0 4px 24px rgba(0,0,0,.3);--transition:.2s ease
}
html{scroll-behavior:smooth}
body{font-family:system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* Header */
.site-header{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;backdrop-filter:blur(12px)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-weight:700;font-size:1.1rem}
.logo svg{flex-shrink:0}
.site-nav{display:flex;gap:24px}
.site-nav a{color:var(--text-dim);text-decoration:none;font-size:.9rem;transition:color var(--transition)}
.site-nav a:hover{color:var(--primary-light)}

/* Hero */
.hero{padding:60px 0 40px;text-align:center;max-width:680px;margin:0 auto}
.hero h1{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:800;line-height:1.2;margin-bottom:16px;background:linear-gradient(135deg,var(--text) 0%,var(--primary-light) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-sub{color:var(--text-dim);font-size:1.1rem;margin-bottom:28px}
.hero-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 22px;border-radius:var(--radius-sm);font-size:.95rem;font-weight:600;text-decoration:none;cursor:pointer;border:none;transition:all var(--transition)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-light);transform:translateY(-1px)}
.btn-secondary{background:var(--surface2);color:var(--text);border:1px solid var(--border)}
.btn-secondary:hover{border-color:var(--primary);background:var(--surface)}

/* Layout */
.layout{display:grid;grid-template-columns:280px 1fr;gap:32px;padding:20px 0 60px}

/* Sidebar */
.sidebar{display:flex;flex-direction:column;gap:20px}
.sidebar-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.sidebar-card h2{font-size:1rem;margin-bottom:8px;color:var(--text)}
.sidebar-card p{font-size:.85rem;color:var(--text-dim);margin-bottom:14px}
.presets{display:flex;flex-direction:column;gap:8px}
.preset-btn{padding:10px 14px;background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:.85rem;cursor:pointer;text-align:left;transition:all var(--transition)}
.preset-btn:hover{border-color:var(--primary);background:rgba(108,58,237,.15)}
.preset-btn[data-preset="reset"]{color:var(--accent);border-color:rgba(245,158,11,.3)}

/* Progress Ring */
.progress-ring{display:flex;justify-content:center;margin:12px 0}
.progress-svg{width:80px;height:80px;transform:rotate(-90deg)}
.progress-bg{fill:none;stroke:var(--surface2);stroke-width:8}
.progress-fill{fill:none;stroke:var(--primary);stroke-width:8;stroke-linecap:round;stroke-dasharray:264;stroke-dashoffset:264;transition:stroke-dashoffset .5s ease}
.progress-text{fill:var(--text);font-size:16px;font-weight:700;transform:rotate(90deg);transform-origin:center}
.progress-detail{text-align:center;font-size:.85rem;color:var(--text-dim)}

.sidebar-tips ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.sidebar-tips li{font-size:.82rem;color:var(--text-dim);padding-left:18px;position:relative}
.sidebar-tips li::before{content:"!";position:absolute;left:0;color:var(--accent);font-weight:700}

/* Main Content */
.main-content{min-width:0}
.section-header{margin-bottom:24px}
.section-header h2{font-size:1.4rem;margin-bottom:6px}
.section-header p{color:var(--text-dim);font-size:.95rem}

/* Input Fields */
.input-group{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.input-group label{font-size:.85rem;font-weight:600;color:var(--text-dim)}
.input-group input,.input-group select{padding:10px 14px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:.95rem;transition:border var(--transition)}
.input-group input:focus,.input-group select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(108,58,237,.2)}
.input-group input::placeholder{color:var(--text-dim);opacity:.5}
.input-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* Checklist Sections */
.checklist-sections{display:flex;flex-direction:column;gap:12px}
.checklist-section{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:border var(--transition)}
.checklist-section[open]{border-color:rgba(108,58,237,.4)}
.checklist-section summary{padding:16px 20px;cursor:pointer;display:flex;align-items:center;justify-content:space-between;list-style:none;font-weight:600}
.checklist-section summary::-webkit-details-marker{display:none}
.checklist-section summary::after{content:"+";font-size:1.2rem;color:var(--text-dim);transition:transform var(--transition)}
.checklist-section[open] summary::after{content:"−"}
.section-title{font-size:1rem}
.section-count{font-size:.8rem;color:var(--text-dim);background:var(--surface2);padding:4px 10px;border-radius:20px}
.checklist-items{padding:0 20px 16px;display:flex;flex-direction:column;gap:4px}
.check-item{display:flex;align-items:flex-start;gap:12px;padding:10px 12px;border-radius:var(--radius-sm);cursor:pointer;transition:background var(--transition)}
.check-item:hover{background:var(--surface2)}
.check-item input[type="checkbox"]{width:20px;height:20px;accent-color:var(--primary);flex-shrink:0;margin-top:2px;cursor:pointer}
.check-item span{font-size:.9rem;color:var(--text);transition:all var(--transition)}
.check-item.checked span{color:var(--text-dim);text-decoration:line-through}

/* Scenario Section */
.scenario-section,.tips-section,.export-section,.assumptions-section{padding:40px 0;border-top:1px solid var(--border)}
.scenario-section h2,.tips-section h2,.export-section h2,.assumptions-section h2{font-size:1.4rem;margin-bottom:8px}
.scenario-section > p,.tips-section > p,.export-section > p{color:var(--text-dim);margin-bottom:28px;max-width:600px}
.scenario-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}
.scenario-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;gap:12px}
.scenario-icon{margin-bottom:4px}
.scenario-card h3{font-size:1.05rem;line-height:1.3}
.scenario-card p{font-size:.88rem;color:var(--text-dim);flex:1}
.scenario-tag{display:inline-flex;align-self:flex-start;padding:4px 12px;background:rgba(108,58,237,.15);color:var(--primary-light);border-radius:20px;font-size:.75rem;font-weight:600}

/* Tips Grid */
.tips-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.tip-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.tip-card h3{font-size:.95rem;margin-bottom:8px;color:var(--primary-light)}
.tip-card p{font-size:.85rem;color:var(--text-dim)}

/* Export Section */
.export-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:20px}
.export-preview{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;font-size:.85rem;color:var(--text-dim);white-space:pre-wrap;max-height:300px;overflow-y:auto;min-height:60px}
.export-preview:empty::after{content:"Your exported checklist will appear here.";color:var(--text-dim);opacity:.5}

/* Assumptions */
.assumptions-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.assumption-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.assumption-card h3{font-size:.95rem;margin-bottom:12px;color:var(--accent)}
.assumption-card ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.assumption-card li{font-size:.85rem;color:var(--text-dim);padding-left:16px;position:relative}
.assumption-card li::before{content:"•";position:absolute;left:0;color:var(--accent)}

/* Footer */
.site-footer{background:var(--surface);border-top:1px solid var(--border);padding:40px 0 24px;margin-top:40px}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:32px}
.footer-brand p{font-size:.85rem;color:var(--text-dim);margin-top:8px;max-width:300px}
.footer-links h4{font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-dim);margin-bottom:12px}
.footer-links a{display:block;font-size:.85rem;color:var(--text-dim);text-decoration:none;margin-bottom:8px;transition:color var(--transition)}
.footer-links a:hover{color:var(--primary-light)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding-top:20px;border-top:1px solid var(--border)}
.footer-bottom p{font-size:.8rem;color:var(--text-dim)}
.footer-bottom a{color:var(--primary-light);text-decoration:none}
.footer-bottom a:hover{text-decoration:underline}

/* Responsive */
@media(max-width:900px){
  .layout{grid-template-columns:1fr}
  .sidebar{order:-1}
  .presets{flex-direction:row;flex-wrap:wrap}
  .preset-btn{flex:1;min-width:140px;text-align:center}
}
@media(max-width:640px){
  .site-nav{gap:14px}
  .site-nav a{font-size:.8rem}
  .hero{padding:40px 0 28px}
  .input-row{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;text-align:center}
  .export-actions{flex-direction:column}
  .export-actions .btn{justify-content:center}
}

/* Print styles */
@media print{
  .site-header,.sidebar,.export-actions,.site-footer,.hero-actions,.scenario-section,.tips-section,.export-section,.assumptions-section{display:none!important}
  .layout{display:block}
  body{background:#fff;color:#000}
  .checklist-section{background:none;border:1px solid #ccc}
  .check-item span{color:#000}
  summary{font-size:1.1rem}
}



/* Factory-injected deployment helpers. The AI owns the site design above this block. */
.ad-unit {
  width: min(100%, 720px);
  min-height: 120px;
  margin: 24px auto;
  display: block;
}

.legal-page {
  width: min(900px, calc(100% - 32px));
  margin: 40px auto;
}

.factory-fallback-nav {
  width: min(900px, calc(100% - 32px));
  margin: 24px auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  font-size: 0.95rem;
}

.factory-fallback-nav a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}