/* 家と土地のお金の計算 — 共通デザイン
   世界観: 「方眼紙の設計図に、あたたかい家を描く」。紙の白・墨の紺・瓦の朱・庭の緑。
   動きは prefers-reduced-motion で止める。JS が無くても全部読めるようにする（.js の時だけ隠して出す） */

:root{
  --paper:#f7f3ea;--paper2:#efe8d9;--card:#fffdf8;--ink:#1f2a37;--sub:#5d6573;--line:#ddd3c1;
  --grid:rgba(31,42,55,.055);--roof:#c25a2c;--roofDeep:#9a4220;--leaf:#4f7a52;--leafSoft:#dfe9d6;
  --sky:#d9e6ee;--sun:#f0b54a;--warn:#b6461d;--ok:#3f6e44;--ctaInk:#fff;--shadow:0 1px 0 rgba(31,42,55,.04),0 8px 24px -12px rgba(31,42,55,.25);
  --mincho:"Hiragino Mincho ProN","Yu Mincho","Noto Serif JP",serif;
  --gothic:"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic",sans-serif;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#161b22;--paper2:#1d232c;--card:#1f2630;--ink:#ece6da;--sub:#a9a294;--line:#363e4a;
  --grid:rgba(236,230,218,.05);--roof:#e07a47;--roofDeep:#f0956f;--leaf:#86b38a;--leafSoft:#24342a;
  --sky:#22313d;--sun:#e8b45a;--warn:#f0956f;--ok:#8fc495;--ctaInk:#1a1208;--shadow:0 8px 24px -12px rgba(0,0,0,.6);
}}
/* デザイン候補の切り替え（?look=b / c の時だけ。既定は a） */
:root[data-look="b"]{--paper:#eef2f6;--paper2:#e1e8ef;--card:#fff;--ink:#14263b;--roof:#1f5c99;--roofDeep:#17497a;--leaf:#2f7d6d;--leafSoft:#d8ece7;--sun:#f2c14e;--grid:rgba(31,92,153,.08)}
:root[data-look="c"]{--paper:#fbfaf6;--paper2:#f1efe6;--card:#fff;--ink:#22302a;--roof:#3f6e44;--roofDeep:#2f5534;--leaf:#c08a2e;--leafSoft:#f3ead6;--sun:#e8a33c}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);font:16px/1.8 var(--gothic);
  background-color:var(--paper);
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:24px 24px;-webkit-text-size-adjust:100%}
a{color:var(--roofDeep);text-underline-offset:3px}
img,svg{max-width:100%}

/* ヘッダー */
.top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top-in{max-width:980px;margin:0 auto;padding:8px 16px;display:flex;align-items:center;gap:12px}
.brand{display:flex;align-items:center;gap:8px;color:var(--ink);text-decoration:none;font-family:var(--mincho);font-weight:700;font-size:15px;letter-spacing:.02em;white-space:nowrap}
.brand svg{width:28px;height:28px;flex:none}
.nav{margin-left:auto;display:flex;gap:4px}
.nav a{color:var(--ink);text-decoration:none;font-size:13px;font-weight:600;padding:6px 10px;border-radius:999px}
.nav a[aria-current="page"],.nav a:hover{background:var(--ink);color:var(--paper)}
@media (max-width:520px){.brand span{display:none}.nav a{padding:6px 9px}}

/* PR 表記（ファーストビューに必ず） */
.pr{max-width:980px;margin:0 auto;padding:6px 16px;font-size:12px;color:var(--sub)}
.pr b{display:inline-block;margin-right:6px;padding:0 6px;border:1px solid currentColor;border-radius:4px;font-weight:700;letter-spacing:.08em}

main{max-width:980px;margin:0 auto;padding:0 16px 24px}
.narrow{max-width:760px;margin-left:auto;margin-right:auto}

/* ヒーロー */
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:24px;align-items:center;padding:20px 0 8px}
@media (max-width:760px){.hero{grid-template-columns:1fr;gap:4px;padding-top:8px}.hero .art{order:-1;margin:0 -8px}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--roofDeep);margin:0 0 8px}
.eyebrow::before{content:"";width:22px;height:2px;background:currentColor}
h1{font-family:var(--mincho);font-size:clamp(1.55rem,4.6vw,2.35rem);line-height:1.38;margin:0 0 12px;letter-spacing:.01em;font-weight:700;text-wrap:balance}
h1 em{font-style:normal;background:linear-gradient(transparent 62%,color-mix(in srgb,var(--sun) 55%,transparent) 62%)}
.lead{color:var(--sub);margin:0 0 14px}
.facts{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}
.facts li{font-size:12.5px;font-weight:600;padding:4px 10px;border-radius:999px;background:var(--card);border:1px solid var(--line)}
.jump{display:inline-flex;align-items:center;gap:8px;margin-top:14px;padding:12px 18px;border-radius:12px;background:var(--ink);color:var(--paper);font-weight:700;text-decoration:none;box-shadow:var(--shadow)}
.jump svg{width:16px;height:16px;transition:transform .2s}
.jump:hover svg{transform:translateY(3px)}

/* イラストの動き */
.art svg{display:block;width:100%;height:auto}
.draw{stroke-dasharray:var(--len,600);stroke-dashoffset:var(--len,600);animation:draw 1.6s cubic-bezier(.6,0,.2,1) forwards;animation-delay:var(--d,0s)}
@keyframes draw{to{stroke-dashoffset:0}}
.pop{transform-box:fill-box;transform-origin:50% 100%;transform:scale(0);animation:pop .6s cubic-bezier(.3,1.6,.5,1) forwards;animation-delay:var(--d,0s)}
@keyframes pop{to{transform:scale(1)}}
.fade{opacity:0;animation:fade .8s ease forwards;animation-delay:var(--d,0s)}
@keyframes fade{to{opacity:1}}
.drift{animation:drift 26s linear infinite}
@keyframes drift{from{transform:translateX(-40px)}to{transform:translateX(60px)}}
.sway{transform-box:fill-box;transform-origin:50% 100%;animation:sway 5s ease-in-out infinite}
@keyframes sway{50%{transform:rotate(2.5deg)}}
.glow{animation:glow 4s ease-in-out infinite;animation-delay:var(--d,0s)}
@keyframes glow{0%,100%{opacity:.25}50%{opacity:1}}
.float{animation:float 5s ease-in-out infinite}
@keyframes float{50%{transform:translateY(-6px)}}
.spin{transform-box:fill-box;transform-origin:center;animation:spin 40s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* セクション */
.sec{margin:44px 0 0}
h2{font-family:var(--mincho);font-size:clamp(1.25rem,3.4vw,1.6rem);line-height:1.45;margin:0 0 12px;font-weight:700}
h2 .no{display:block;font-family:var(--gothic);font-size:12px;letter-spacing:.14em;color:var(--roofDeep);margin-bottom:2px}
h3{font-size:1.02rem;margin:18px 0 4px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:var(--shadow)}

/* 入力 */
.calc{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:18px;align-items:start}
@media (max-width:860px){.calc{grid-template-columns:1fr}}
form.card{position:relative}
@media (min-width:861px){form.card{position:sticky;top:64px}}
label{display:block;font-weight:700;font-size:13.5px;margin:12px 0 4px}
form label:first-child{margin-top:0}
input,select{width:100%;font:inherit;font-size:16px;padding:10px 12px;border:1.5px solid var(--line);border-radius:10px;background:var(--paper);color:var(--ink);transition:border-color .15s,box-shadow .15s}
input:focus,select:focus{outline:none;border-color:var(--roof);box-shadow:0 0 0 3px color-mix(in srgb,var(--roof) 22%,transparent)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.row>div>label{margin-top:12px}
.seg{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin:0;padding:0;border:0}
.seg legend{font-weight:700;font-size:13.5px;margin:12px 0 4px;padding:0}
.seg input{position:absolute;opacity:0;width:1px;height:1px}
.seg label{margin:0;padding:10px 8px;text-align:center;border:1.5px solid var(--line);border-radius:10px;background:var(--paper);cursor:pointer;font-size:13.5px;transition:all .15s}
.seg input:checked+label{border-color:var(--ink);background:var(--ink);color:var(--paper)}
.seg input:focus-visible+label{box-shadow:0 0 0 3px color-mix(in srgb,var(--roof) 30%,transparent)}
details{margin-top:12px}
summary{cursor:pointer;font-weight:700;font-size:13.5px;color:var(--roofDeep)}
small{color:var(--sub);display:block;font-size:12.5px;line-height:1.6;margin-top:4px}

/* 結果 */
.out{min-height:200px}
.label{margin:0;color:var(--sub);font-size:13.5px;font-weight:600}
.big{font-family:var(--mincho);font-size:clamp(2.2rem,8vw,3.1rem);font-weight:700;line-height:1.15;margin:2px 0 12px;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.big .u{font-size:.45em;margin-left:4px;font-family:var(--gothic)}
.verdict{display:flex;gap:10px;align-items:flex-start;padding:12px 14px;border-radius:12px;margin:4px 0 14px;font-weight:600;line-height:1.6}
.verdict svg{width:22px;height:22px;flex:none;margin-top:2px}
.verdict.ok{background:var(--leafSoft);color:var(--ok)}
.verdict.short{background:color-mix(in srgb,var(--roof) 13%,var(--card));color:var(--warn)}
.bars{display:grid;gap:10px;margin:8px 0 16px}
.bar{display:grid;grid-template-columns:7.2em 1fr;align-items:center;gap:8px;font-size:13px}
.bar .t{height:26px;border-radius:7px;background:var(--paper2);overflow:hidden;position:relative}
.bar .f{height:100%;width:0;border-radius:7px;transition:width 1s cubic-bezier(.2,.8,.2,1)}
.bar .v{position:absolute;right:8px;top:0;line-height:26px;font-weight:700;font-variant-numeric:tabular-nums;font-size:12.5px}
.stack{display:flex;height:30px;border-radius:8px;overflow:hidden;margin:6px 0 4px}
.stack i{display:block;height:100%;width:0;transition:width 1s cubic-bezier(.2,.8,.2,1)}
.legend{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:12.5px;color:var(--sub);margin:0 0 14px;padding:0;list-style:none}
.legend li::before{content:"";display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:6px;background:var(--c);vertical-align:-1px}
.gauge{display:grid;grid-template-columns:150px 1fr;gap:12px;align-items:center;margin:6px 0 14px}
@media (max-width:420px){.gauge{grid-template-columns:120px 1fr}}
.gauge svg{width:100%;height:auto}
.gauge .arc{transition:stroke-dashoffset 1.1s cubic-bezier(.2,.8,.2,1)}
.gauge .needle{transform-origin:60px 60px;transition:transform 1.1s cubic-bezier(.2,.8,.2,1)}
.mini{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:0 0 12px}
.mini div{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:8px 10px}
.mini b{display:block;font-size:.92rem;white-space:nowrap;font-variant-numeric:tabular-nums}
.mini span{font-size:11.5px;color:var(--sub)}
table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums;font-size:14px}
td,th{border-bottom:1px solid var(--line);padding:7px 4px;text-align:left;vertical-align:top}
th{font-size:12.5px;color:var(--sub)}
td.n,th.n{text-align:right;white-space:nowrap}
.warn{color:var(--warn);font-weight:700}
.err{color:var(--warn);font-weight:700}
.advice{margin:12px 0 0;padding-left:12px;border-left:3px solid var(--sun)}
caption.sr,.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* 価格帯の帯 */
.range{position:relative;height:34px;border-radius:10px;background:repeating-linear-gradient(90deg,var(--paper2) 0 10px,transparent 10px 12px);margin:8px 0 4px}
.range .band{position:absolute;top:4px;bottom:4px;left:50%;width:0;border-radius:7px;background:color-mix(in srgb,var(--roof) 55%,transparent);transition:left 1s cubic-bezier(.2,.8,.2,1),width 1s cubic-bezier(.2,.8,.2,1)}
.range .mid{position:absolute;top:-4px;bottom:-4px;left:50%;width:4px;margin-left:-2px;border-radius:2px;background:var(--ink);transition:left 1s cubic-bezier(.2,.8,.2,1)}
.rl{display:flex;justify-content:center;font-weight:700;font-size:12.5px;color:var(--sub);font-variant-numeric:tabular-nums;margin-bottom:12px}

/* 紹介枠（広告） */
.offers{display:grid;gap:12px;margin:16px 0 0}
.offer{position:relative;background:var(--card);border:1.5px solid var(--ink);border-radius:16px;padding:16px 16px 14px;box-shadow:4px 4px 0 var(--ink)}
.offer h3{margin:0 0 4px;font-family:var(--mincho);font-size:1.12rem}
.adl{position:absolute;top:-10px;right:14px;margin:0;font-size:11px;font-weight:700;letter-spacing:.1em;background:var(--paper);border:1px solid var(--ink);border-radius:4px;padding:0 6px}
a.cta{display:flex;align-items:center;justify-content:center;gap:8px;text-align:center;margin:10px 0 6px;padding:14px;border-radius:12px;background:var(--roof);color:var(--ctaInk);text-decoration:none;font-weight:800;font-size:15.5px;transition:transform .15s,background .15s;box-shadow:0 3px 0 var(--roofDeep)}
a.cta::after{content:"";width:8px;height:8px;border-top:2.5px solid currentColor;border-right:2.5px solid currentColor;transform:rotate(45deg)}
a.cta:hover{background:var(--roofDeep)}
a.cta:active{transform:translateY(2px);box-shadow:0 1px 0 var(--roofDeep)}

/* 流れ・特徴 */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;counter-reset:s;margin:0;padding:0;list-style:none}
@media (max-width:760px){.steps{grid-template-columns:1fr}}
.steps li{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px;display:grid;grid-template-columns:64px 1fr;gap:12px;align-items:center}
.steps svg{width:64px;height:64px}
.steps b{display:block;font-family:var(--mincho);font-size:1.05rem}
.steps span{font-size:13.5px;color:var(--sub);line-height:1.65}
.tiles3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media (max-width:760px){.tiles3{grid-template-columns:1fr}}
.go{display:grid;grid-template-columns:72px 1fr;gap:12px;align-items:center;padding:14px;border-radius:16px;background:var(--card);border:1px solid var(--line);color:var(--ink);text-decoration:none;box-shadow:var(--shadow);transition:transform .2s,border-color .2s}
.go:hover{transform:translateY(-3px);border-color:var(--ink)}
.go svg{width:72px;height:60px}
.go b{display:block;font-family:var(--mincho);font-size:1.05rem}
.go span{font-size:12.5px;color:var(--sub);line-height:1.6}

/* 都道府県タイル地図 */
.mapwrap{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:16px;align-items:center}
@media (max-width:760px){.mapwrap{grid-template-columns:1fr}}
.jmap{display:grid;grid-template-columns:repeat(13,1fr);gap:3px;aspect-ratio:13/12}
.jmap button{all:unset;box-sizing:border-box;display:grid;place-items:center;border-radius:5px;font-size:clamp(7px,1.9vw,11px);font-weight:700;line-height:1;cursor:pointer;color:#fff;background:var(--c,#999);transition:transform .15s,box-shadow .15s;opacity:0;transform:scale(.6)}
.jmap.on button{opacity:1;transform:none;transition:opacity .4s,transform .4s cubic-bezier(.3,1.5,.5,1);transition-delay:calc(var(--i)*12ms)}
.jmap button:hover,.jmap button:focus-visible{transform:scale(1.18);box-shadow:0 0 0 2px var(--ink);z-index:1;position:relative}
.jmap button[aria-pressed="true"]{box-shadow:0 0 0 2.5px var(--ink),0 0 0 4.5px var(--paper)}
.jmap button.page::after{content:"";position:absolute;width:5px;height:5px;border-radius:50%;background:#fff;top:3px;right:3px}
.jmap button{position:relative}
.scale{display:flex;align-items:center;gap:6px;font-size:11.5px;color:var(--sub);margin-top:8px}
.scale i{flex:1;height:8px;border-radius:4px;background:linear-gradient(90deg,#9cb89a,#e7c06a,#c25a2c)}
.mapinfo{min-height:150px}
.mapinfo .big{font-size:2rem}

/* 演出: スクロールで出る（JSが動いた時だけ隠す） */
.js .rv{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.8,.2,1)}
.js .rv.in{opacity:1;transform:none}

.note{font-size:13.5px}
.note li{margin:4px 0}
.src{font-size:12.5px;color:var(--sub)}

/* フッター */
.foot{margin-top:56px;border-top:1px solid var(--line);background:var(--paper2)}
.foot-in{max-width:980px;margin:0 auto;padding:22px 16px 28px;font-size:13px;color:var(--sub)}
.foot nav{display:flex;flex-wrap:wrap;gap:6px 16px;margin:10px 0}
.foot a{color:var(--ink)}
.foot svg{display:block;width:100%;height:46px;margin-bottom:10px}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .draw{stroke-dashoffset:0}.pop{transform:none}.fade{opacity:1}
  .js .rv{opacity:1;transform:none}.jmap button{opacity:1;transform:none}
}
td:first-child{min-width:7.5em}
@media (max-width:480px){td.n{white-space:normal}}