*{box-sizing:border-box}
body{font-family:system-ui,-apple-system,'Malgun Gothic',sans-serif;margin:0;background:#eef2f5;color:#1a2733;font-size:17px;line-height:1.6}
header{background:#2c6e9b;color:#fff;padding:16px;text-align:center;font-size:19px;font-weight:700;position:relative}
/* 화면 하단 고정(손 닿기 쉬운 위치) */
.bigtext-toggle{position:fixed;right:14px;bottom:16px;z-index:200;background:#2c6e9b;color:#fff;border:0;border-radius:24px;padding:12px 18px;font-size:16px;font-weight:700;cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,.25)}

/* 글씨 크게 모드 — 시력 약한 분용 */
body.bigtext{font-size:21px}
body.bigtext h2{font-size:26px}
body.bigtext .sub{font-size:17px}
body.bigtext label.f{font-size:20px}
body.bigtext input[type=text],body.bigtext input[type=tel],body.bigtext textarea,body.bigtext select{font-size:21px;padding:15px}
body.bigtext .chk label{font-size:21px}
body.bigtext .chkgrid3 .chk label{font-size:16px}
body.bigtext .consent{font-size:16px;max-height:160px}
body.bigtext button{font-size:22px}
body.bigtext .bigtext-toggle{font-size:16px}
.wrap{max-width:560px;margin:0 auto;padding:16px}
.step{display:none;background:#fff;border-radius:12px;padding:20px;box-shadow:0 2px 8px rgba(0,0,0,.08)}
.step.active{display:block}
h2{font-size:20px;margin:0 0 4px}
.sub{color:#5b6b78;font-size:14px;margin:0 0 16px}
label.f{display:block;margin:14px 0 6px;font-weight:600}
input[type=text],input[type=tel],textarea,select{width:100%;padding:12px;font-size:17px;border:1.5px solid #c7d2da;border-radius:8px;font-family:inherit}
textarea{min-height:64px}
.chk{display:flex;align-items:center;gap:14px;padding:16px 16px;border:1.5px solid #d3dce2;border-radius:10px;margin:10px 0;min-height:60px}
.chk input{width:32px;height:32px;flex:0 0 32px}
.chk label{flex:1;margin:0;font-weight:400;font-size:17px}
/* 동의 체크박스는 더 크게(손가락 터치) */
.chk.consent-chk{min-height:72px;background:#f0f6fb;border-color:#2c6e9b}
.chk.consent-chk input{width:38px;height:38px;flex:0 0 38px}
.chk.consent-chk label{font-weight:700}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.grid3{display:grid;grid-template-columns:1fr 1fr;gap:8px}
/* 한 줄에 3개: 체크박스 위 + 라벨 아래(손 터치용 큰 타깃) */
.chkgrid3{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.chkgrid3 .chk{flex-direction:column;justify-content:center;text-align:center;gap:6px;min-height:76px;padding:10px 4px;margin:0}
.chkgrid3 .chk input{width:30px;height:30px;flex:0 0 30px}
.chkgrid3 .chk label{flex:none;font-size:13px;line-height:1.25;word-break:keep-all}
.nav{display:flex;gap:10px;margin-top:20px}
button{flex:1;padding:15px;font-size:18px;font-weight:700;border:0;border-radius:10px;cursor:pointer}
.next,.submit{background:#2c6e9b;color:#fff}
.prev{background:#e2e8ee;color:#33414d}
button:disabled{opacity:.45}
.consent{background:#f7fafc;border:1.5px solid #d3dce2;border-radius:8px;padding:12px;font-size:13px;color:#4a5964;max-height:120px;overflow:auto;margin-bottom:8px;white-space:pre-wrap}
#sigpad{width:100%;height:180px;border:2px dashed #9db4c2;border-radius:8px;background:#fff;touch-action:none}
.dots{text-align:center;color:#94a6b3;font-size:13px;margin-bottom:12px}
.err{color:#c0392b;font-size:14px;margin-top:8px;min-height:20px}
.done{text-align:center;padding:30px}
.done .big{font-size:40px}
.hint{color:#7a8a96;font-size:13px}