:root{--bg:#f3f8f3;--text:#122017;--muted:#4f6b57;--card:#ffffff;--accent:#0c7a43;--accent-2:#0a5f35;--line:#d5e5d9}*{box-sizing:border-box}body{margin:0;background:linear-gradient(150deg,#ecf7ef 0,var(--bg) 60%);color:var(--text);font-family:Montserrat,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}main{max-width:780px;margin:0 auto;padding:14px}h1,h2,h3{margin-top:0}p{color:var(--muted)}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:14px;box-shadow:0 12px 28px rgba(12,55,32,.08)}.hero-card{background:linear-gradient(120deg,#0c7a43,#1e8d56);color:white}.hero-card p{color:#ebfff2}.participant-shell,.stack{display:grid;grid-gap:12px;gap:12px}.field{display:grid;grid-gap:6px;gap:6px}.field span{font-size:14px;color:#244834;font-weight:700}input,select{width:100%;border:1px solid #c6ddcd;border-radius:12px;padding:10px 12px;font-size:16px;background:#fbfefc;color:#183527}select{appearance:none;-webkit-appearance:none;-moz-appearance:none;padding-right:40px;background-image:linear-gradient(45deg,transparent 50%,#3f5f4c 0),linear-gradient(135deg,#3f5f4c 50%,transparent 0);background-position:calc(100% - 18px) calc(50% - 3px),calc(100% - 12px) calc(50% - 3px);background-size:6px 6px,6px 6px;background-repeat:no-repeat}input:focus,select:focus{outline:none;border-color:#5da985;box-shadow:0 0 0 3px rgba(93,169,133,.2);background:#ffffff}button{border:0;border-radius:12px;background:var(--accent);color:white;padding:12px 14px;font-weight:700;font-size:15px}button:disabled{opacity:.6}.question-box{border:1px solid var(--line);border-radius:12px;padding:10px;margin:0}.question-box legend{font-weight:700;padding:0 6px}.option-line{display:flex;gap:10px;align-items:center;padding:7px 0;color:#1d3a29}.option-line input{width:auto}@media (min-width:900px){main{padding:24px}.card{padding:18px}button:hover{background:var(--accent-2);cursor:pointer}}