:root{--ink:#171717;--green:#2d7a4f;--line:#d7dfda;--bg:#f6f8f6}
*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif}
.calendar-page{max-width:760px;margin:0 auto;padding:24px 16px 60px}.calendar-head{border-bottom:2px solid var(--ink);padding-bottom:14px;margin-bottom:22px}.calendar-head h1{font-size:clamp(25px,5vw,38px);margin:0 0 6px}.calendar-head p{margin:0;color:#555}.calendar-form{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;display:grid;gap:18px}.calendar-field{display:grid;gap:7px}.calendar-field label,.calendar-legend{font-weight:700;font-size:16px}.calendar-field select,.calendar-field input:not([type="radio"]){width:100%;font:inherit;padding:13px;border:1px solid #aebbb3;border-radius:10px;background:#fff}.calendar-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.calendar-option{border:1px solid #aebbb3;border-radius:10px;padding:12px;display:flex;gap:8px;align-items:flex-start}.calendar-option input[type="radio"]{flex:0 0 auto;margin-top:3px}.calendar-option:has(input:checked){outline:2px solid var(--green);background:#f0f7f3}.calendar-option strong{display:block}.calendar-option small{display:block;color:#666;margin-top:2px}.calendar-submit{border:0;border-radius:999px;background:var(--green);color:#fff;font:700 18px inherit;padding:15px;cursor:pointer}.calendar-submit:disabled{opacity:.5}.calendar-status{min-height:24px;color:#555}.calendar-result{margin-top:20px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px}.calendar-result[hidden]{display:none}.calendar-actions{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px}.calendar-actions a{background:var(--green);color:#fff;text-decoration:none;border-radius:999px;padding:10px 16px;font-weight:700}.calendar-actions a.secondary{background:#fff;color:var(--green);border:2px solid var(--green)}iframe{width:100%;height:70vh;border:1px solid var(--line);border-radius:8px;background:#eee}@media(max-width:560px){.calendar-options{grid-template-columns:1fr}.calendar-form{padding:16px}iframe{height:58vh}}