/* ひっこしおかね計算室
   間取り図(壁の太線・部屋割り・方眼)をモチーフにする。
   墨の壁線(wall)、図面の青(ao)、養生テープの黄(tape)の3色が軸。 */
:root {
  --paper: #ffffff;
  --grid: #eef2f4;
  --ink: #22262b;
  --muted: #5f6770;
  --rule: #d4dadf;
  --wall: #2e3338;
  --ao: #1e6e8c;
  --ao-ink: #ffffff;
  --ao-soft: #eaf3f6;
  --tape: #f2c14e;
  --font: "Murecho", "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #15181b;
    --grid: #1d2125;
    --ink: #e7eaed;
    --muted: #a3abb4;
    --rule: #343a40;
    --wall: #c9d0d6;
    --ao: #7cc0da;
    --ao-ink: #0d2129;
    --ao-soft: #1b2a31;
    --tape: #d9a93a;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--font); font-size: 16px; line-height: 1.85; }
a { color: var(--ao); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--ao); outline-offset: 2px; }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }

header.site { border-bottom: 3px solid var(--wall); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 8px 20px; padding-top: 14px; padding-bottom: 12px; flex-wrap: wrap; }
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-weight: 700; font-size: 18px; letter-spacing: .04em; }
/* ロゴ:1LDKの小さな間取り */
.logo i { position: relative; width: 26px; height: 22px; border: 3px solid var(--wall); }
.logo i::before { content: ""; position: absolute; left: 9px; top: -3px; bottom: 6px; border-left: 3px solid var(--wall); }
.logo i::after { content: ""; position: absolute; left: 9px; right: 0; bottom: 6px; border-top: 3px solid var(--wall); }
nav.top { display: flex; gap: 18px; font-size: 14px; }
nav.top a { color: var(--muted); text-decoration: none; }
nav.top a:hover { color: var(--ao); text-decoration: underline; }

.crumbs { font-size: 13px; color: var(--muted); margin: 18px 0 0; }
.crumbs a { color: var(--muted); }
h1, h2, h3 { font-weight: 700; letter-spacing: .02em; }
h1 { font-size: clamp(24px, 4.6vw, 30px); line-height: 1.5; margin: 10px 0 8px; }
h2 { font-size: 20px; line-height: 1.5; margin: 44px 0 12px; padding-left: 12px; border-left: 4px solid var(--wall); }
h3 { font-size: 17px; margin: 26px 0 6px; }
.lead { color: var(--muted); margin: 0 0 22px; max-width: 36em; }
article p, article li { max-width: 36em; }

.hero { padding: 36px 0 6px; }
.hero h1 { font-size: clamp(26px, 5.6vw, 38px); line-height: 1.45; margin: 0 0 12px; max-width: 14em; }
.hero p { color: var(--muted); margin: 0; max-width: 34em; }

/* 入力欄:方眼紙の上に書きこむ */
.sheet { border: 1px solid var(--rule); padding: 22px; margin: 20px 0;
  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; }
.tool label { display: block; font-weight: 700; font-size: 14px; margin: 14px 0 5px; }
.tool .hint { font-weight: 400; color: var(--muted); font-size: 13px; }
.tool input, .tool select { width: 100%; font: inherit; padding: 9px 11px; border: 1px solid var(--wall); border-radius: 0; background: var(--paper); color: var(--ink); }
.tool input:focus, .tool select:focus { outline: 3px solid var(--tape); outline-offset: 0; }
.tool input[type="checkbox"] { width: auto; accent-color: var(--ao); }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
@media (max-width: 560px) { .row { grid-template-columns: 1fr; } }
.checks { display: flex; flex-wrap: wrap; gap: 4px 20px; margin-top: 12px; }
.checks label { display: inline-flex; align-items: center; gap: 8px; font-weight: 400; margin: 0; font-size: 15px; }
button { font: inherit; font-weight: 700; padding: 9px 18px; border: 2px solid var(--wall); background: var(--wall); color: var(--paper); cursor: pointer; margin: 14px 8px 0 0; }

/* 計算結果 */
#out { margin-top: 20px; }
#out > div:first-child { font-size: 14px; color: var(--muted); }
#out .big { display: inline-block; font-size: clamp(30px, 7vw, 40px); font-weight: 700; line-height: 1.2; margin: 2px 0 6px; font-variant-numeric: tabular-nums;
  background: linear-gradient(transparent 62%, var(--tape) 62%, var(--tape) 92%, transparent 92%); padding: 0 4px; }
#out .ratio { margin: 0 0 10px; color: var(--muted); font-size: 15px; }
#out table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; background: var(--paper); }
#out td { padding: 7px 2px; border-bottom: 1px solid var(--rule); font-size: 15px; }
#out td.n { text-align: right; }
#out p { font-size: 15px; color: var(--muted); background: var(--paper); }

/* 見せ場:初期費用の「間取り図」。費用の大きさを部屋の広さで表す */
.plan { display: flex; flex-direction: column; height: 280px; border: 5px solid var(--wall); margin: 6px 0 18px; background: var(--paper); }
.plan-row { display: flex; min-height: 0; flex-basis: 0; }
.plan-row + .plan-row { border-top: 3px solid var(--wall); }
.room { position: relative; min-width: 0; flex-basis: 0; padding: 8px 10px; display: flex; flex-direction: column; justify-content: center; overflow: hidden; }
.room + .room { border-left: 3px solid var(--wall); }
.room b { font-size: 13px; line-height: 1.3; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.room span { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; }
.room.back { background: var(--ao-soft); }
.plan-legend { font-size: 13px; color: var(--muted); margin: -12px 0 14px; }
.plan-legend i { display: inline-block; width: 12px; height: 12px; background: var(--ao-soft); border: 2px solid var(--wall); vertical-align: -1px; margin-right: 6px; }
@media (max-width: 560px) { .plan { height: 240px; } .room { padding: 6px; } .room b { font-size: 12px; } }

/* 手続きのタイムライン */
ol.timeline { list-style: none; margin: 4px 0; padding: 0; border-left: 3px solid var(--wall); }
ol.timeline li { position: relative; padding: 0 0 18px 22px; }
ol.timeline li::before { content: ""; position: absolute; left: -9px; top: 7px; width: 15px; height: 15px; background: var(--paper); border: 3px solid var(--wall); }
ol.timeline li.due::before { background: var(--tape); }
ol.timeline time { display: block; font-size: 14px; color: var(--ao); font-weight: 700; font-variant-numeric: tabular-nums; }
ol.timeline b { display: block; font-size: 17px; line-height: 1.5; }
ol.timeline span { display: block; color: var(--muted); font-size: 15px; line-height: 1.7; }

table.data { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 15px; }
table.data th, table.data td { border: 1px solid var(--rule); padding: 8px; text-align: left; vertical-align: top; }
table.data tr:first-child th { background: var(--ao-soft); }
.note { border: 1px dashed var(--muted); padding: 10px 16px; font-size: 14px; margin: 24px 0; color: var(--muted); }

.promo { border: 2px solid var(--wall); background: var(--paper); padding: 14px 18px; margin: 20px 0; }
.promo .tag { display: inline-block; font-size: 12px; color: var(--muted); border: 1px solid var(--muted); padding: 0 6px; }
.promo strong { display: block; font-size: 17px; margin-top: 4px; }
.promo p { margin: 6px 0 0; font-size: 14px; color: var(--muted); }
.promo ul.aff { list-style: none; margin: 10px 0 0; padding: 0; }
.promo ul.aff li { border-top: 1px solid var(--rule); padding: 8px 0; font-size: 14px; }
.promo ul.aff a { font-weight: 700; display: block; }
.promo ul.aff span { color: var(--muted); }

.index { list-style: none; margin: 8px 0 0; padding: 0; border-top: 3px solid var(--wall); }
.index li { border-bottom: 1px solid var(--rule); }
.index a { display: block; padding: 13px 4px; text-decoration: none; color: var(--ink); }
.index b { display: block; color: var(--ao); }
.index a:hover b { text-decoration: underline; }
.index span { color: var(--muted); font-size: 15px; }

details { border-bottom: 1px solid var(--rule); padding: 10px 2px; }
details:first-of-type { border-top: 1px solid var(--rule); }
summary { font-weight: 700; cursor: pointer; }
details p { margin: 8px 0 2px; color: var(--muted); }
footer.site { margin-top: 56px; border-top: 3px solid var(--wall); font-size: 13px; color: var(--muted); }
footer.site .wrap { padding-top: 18px; padding-bottom: 28px; }
footer.site a { color: var(--muted); margin-right: 14px; display: inline-block; }
@media (max-width: 560px) { .sheet { padding: 16px 14px; } }