:root{--paper:#e8f0f7;--sheet:#fdfdfb;--main:#2f5d8a;--soft:#b9cfe4;--acorn:#9a5b2e;--cap:#d4523f;--ink:#2d2b3a;--muted:#56657a;--moon:#f2c94c;--line:#c6d5e5}*{box-sizing:border-box}body{background:var(--paper);color:var(--ink);font-family:var(--ui), "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;word-break:keep-all;overflow-wrap:anywhere;-webkit-text-size-adjust:100%;margin:0;font-size:1.0625rem;line-height:1.65}a{color:inherit}main,header.site nav,footer{max-width:1080px;margin:0 auto}main{padding:24px 16px 32px}h1,h2,h3,.lead,.brand,.paths b,.next b{font-family:var(--story), serif}h1{letter-spacing:-.01em;margin:0 0 12px;font-size:clamp(1.9rem,1.3rem + 2.6vw,2.6rem);font-weight:700;line-height:1.3}h2{margin:0 0 8px;font-size:1.3rem;font-weight:700}.lead{max-width:34em;margin:0 0 28px;font-size:1.15rem;line-height:1.8}header.site nav{flex-wrap:wrap;align-items:center;gap:4px 16px;padding:14px 16px;display:flex}header.site .brand{align-items:center;gap:6px;margin-right:auto;font-weight:700;text-decoration:none;display:flex}header.site a{font-family:var(--story), serif;text-decoration:none}header.site a:not(.brand):hover{-webkit-text-decoration:underline wavy var(--soft) 2px;text-decoration:underline wavy var(--soft) 2px;text-underline-offset:6px}footer{color:var(--muted);text-align:center;padding:24px 16px 16px;font-size:.85rem}footer .legal{flex-wrap:wrap;justify-content:center;display:flex}footer .legal a:not(:first-child):before{content:"·";margin:0 8px;display:inline-block}footer p{margin:6px 0 0}.panel{background:var(--sheet);border:2px solid var(--ink);border-radius:6px 18px 8px 14px;padding:24px 20px}.field{border:0;flex-direction:column;gap:4px;margin:0 0 18px;padding:0;display:flex}.field label,.field legend{color:var(--muted);padding:0;font-size:.95rem}input[type=date]{font:inherit;width:100%;color:var(--ink);border:0;border-bottom:2px solid var(--ink);background:0 0;border-radius:0;padding:6px 2px;font-size:1.2rem}input:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--moon);outline-offset:3px}.seg{grid-template-columns:repeat(3,1fr);gap:8px;margin-top:4px;display:grid}.seg label{color:var(--ink);border:2px solid var(--line);text-align:center;cursor:pointer;border-radius:999px;padding:6px}.seg input{opacity:0;position:absolute}.seg label:has(input:checked){border-color:var(--main);background:var(--main);color:#fff}.seg label:has(input:focus-visible){outline:3px solid var(--moon);outline-offset:2px}.hint{color:var(--muted);font-size:.9rem}.calc{gap:24px;margin-bottom:40px;display:grid}.result{min-width:0}.placeholder{display:none}@media (min-width:900px){main{padding-top:40px}.calc{grid-template-columns:340px 1fr;align-items:start;gap:48px}.calc>form{position:sticky;top:16px}.placeholder{color:var(--muted);font-family:var(--story), serif;padding-top:24px;font-size:1.15rem;display:block}}.next{align-items:flex-end;gap:8px;margin-bottom:24px;display:flex}.next svg{flex:none}.next p{background:var(--sheet);border:2px solid var(--ink);border-radius:18px 18px 18px 4px;flex-direction:column;margin:0 0 24px;padding:12px 16px;display:flex;position:relative}.next b{color:var(--main);font-size:1.35rem}.next span{color:var(--muted);font-size:.95rem}.pecking{transform-box:fill-box;transform-origin:40% 95%;animation:.9s ease-in-out .3s 2 peck}.forest .pecking{animation:1.8s ease-in-out infinite peck}.forest .kok{font-family:var(--story), serif;fill:var(--cap);font-size:15px;font-weight:700;animation:1.8s ease-out infinite pop}@keyframes peck{0%,to{transform:rotate(0)}20%,60%{transform:rotate(14deg)}40%,80%{transform:rotate(0)}}@keyframes pop{0%,15%,to{opacity:0}25%,70%{opacity:1}}@media (prefers-reduced-motion:reduce){.pecking,.forest .pecking,.forest .kok{animation:none}}.meadow{align-items:end;max-width:1080px;margin:0 auto;padding:24px 16px 0;display:grid;position:relative}.meadow .lead{margin-bottom:0}.forest{z-index:1;justify-self:end;width:200px;margin:-8px 8px -40px 0;display:block;position:relative}.meadow:after{content:"";border-top:3px solid var(--ink);background:#a9c79a;border-radius:60% 40% 0 0/100% 100% 0 0;grid-column:1/-1;height:40px;margin:0 calc(50% - 50vw)}@media (min-width:900px){.meadow{grid-template-columns:1fr 300px;gap:32px;padding-top:40px}.forest{width:300px;margin-right:0}}.timeline{margin:0;padding:0;list-style:none}.timeline h3{border-bottom:2px dashed var(--line);margin:20px 0 8px;padding-bottom:4px;font-size:1.1rem}.timeline>li:first-child h3{margin-top:0}.row-item{background:var(--sheet);border-left:4px solid var(--line);border-radius:10px;grid-template-columns:9.5em 1fr;gap:12px;margin-bottom:8px;padding:10px 12px;display:grid}.now .row-item{border-left-color:var(--moon);box-shadow:0 0 0 2px var(--moon)}.past .row-item{opacity:.7}.when{font-variant-numeric:tabular-nums;flex-direction:column;display:flex}.when time{font-weight:700}.when small{color:var(--muted);font-size:.8rem}.badge{background:var(--paper);border-radius:999px;align-self:flex-start;margin-top:4px;padding:0 8px;font-size:.75rem;font-style:normal}.now .badge{background:var(--moon)}.row-item ul{margin:0;padding:0;list-style:none}.row-item li{margin:2px 0}.row-item li small{color:var(--muted);font-size:.8rem;display:block}.kind{color:#fff;background:var(--main);vertical-align:2px;border-radius:4px;padding:0 6px;font-size:.72rem}.checkup .kind{background:var(--cap)}@media (max-width:480px){.row-item{grid-template-columns:1fr;gap:4px}.when{flex-flow:wrap;align-items:baseline;gap:0 8px}.badge{margin:0}}.past summary{cursor:pointer;font-family:var(--story), serif;margin:20px 0 8px}.paths{gap:4px;margin-bottom:32px;display:grid}@media (min-width:720px){.paths{grid-template-columns:1fr 1fr;gap:32px}}.paths a{border-bottom:2px dashed var(--line);padding:16px 0;text-decoration:none;display:block}.paths b{color:var(--acorn);font-size:1.6rem;display:block}.paths span{color:var(--muted)}.about{max-width:38em}.guide{line-height:1.8}.guide h2{margin-top:32px}.guide ul{padding-left:1.2em}.scroll{overflow-x:auto}table{border-collapse:collapse;width:100%}th,td{border-bottom:1px dashed var(--line);text-align:left;vertical-align:top;padding:6px 8px}th{color:var(--muted);font-weight:400}td:nth-child(2),td:nth-child(3){white-space:nowrap}.link{font:inherit;color:inherit;cursor:pointer;background:0 0;border:0;padding:0;text-decoration:underline}.link:focus-visible{outline:3px solid var(--moon);outline-offset:3px}.btn.cta{font-family:var(--story), serif;color:#fff;background:var(--main);border:2px solid var(--ink);border-radius:999px;margin-top:20px;padding:12px 24px;font-size:1.15rem;font-weight:700;text-decoration:none;display:inline-block}.btn.cta:active{transform:translateY(2px)}.story .define{color:var(--muted);max-width:34em;margin:12px 0 0;font-size:.95rem}.faq h3{font-family:var(--story), serif;margin:20px 0 4px;font-size:1.1rem}.faq p{margin:0}caption{color:var(--muted);text-align:left;padding:0 0 6px;font-size:.85rem}.seg label{justify-content:center;align-items:center;min-height:44px;display:flex}.ad{justify-content:center;display:flex}.ad ins{margin-bottom:32px}.progress{display:none}@supports (animation-timeline:scroll()){.progress{z-index:10;background:var(--main);transform-origin:0;height:4px;animation:linear both grow;animation-timeline:scroll(root);display:block;position:fixed;inset:0 0 auto}@keyframes grow{0%{transform:scaleX(0)}to{transform:scaleX(1)}}}