/* ぞーさん工房 サイト共通スタイル */
html { -webkit-text-size-adjust: 100%; }
[hidden] { display: none !important; }
:root { padding-top: env(safe-area-inset-top, 0px); padding-bottom: env(safe-area-inset-bottom, 0px); }
/* Layout: 図面用紙のような白い紙面。セクションは図面番号つきの区画、フッターは図面の表題欄。 */
:root {
  --paper: #FAFBFB;        /* 紙面 */
  --sheet: #FFFFFF;        /* カード・表 */
  --ink: #1C2226;          /* 本文 */
  --ink-soft: #59646C;     /* 補足 */
  --rule: #DCE1E4;         /* 罫線 */
  --rule-strong: #A9B3BA;
  --accent: #2547C4;       /* 青焼きの青 */
  --accent-ink: #FFFFFF;
  --accent-tint: #EAEFFC;
  --wood: #C9A672;

  /* 模型イラスト（白模型は実物の色なので両テーマ共通） */
  --m-top: #FFFFFF;
  --m-x: #EDEFF1;
  --m-y: #D9DDE1;
  --m-line: #9EA7AF;
  --m-win: #A7B3BE;
  --m-wood-top: #DCC39C;
  --m-wood-x: #C7A779;
  --m-wood-y: #AE8C5E;
  --m-tree: #C9D3C4;
  --m-tree-d: #AEBBA8;
  --m-c-wall: #F2ECE2;
  --m-c-wall-x: #E4DACB;
  --m-c-wall-y: #D2C6B4;
  --m-c-roof: #5D6670;
  --m-c-roof-d: #48505A;

  --f-display: "Shippori Mincho B1", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --f-body: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --gutter-l: max(16px, env(safe-area-inset-left, 0px));
  --gutter-r: max(16px, env(safe-area-inset-right, 0px));
  --max: 1120px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #14181B; --sheet: #1B2024; --ink: #E7EBED; --ink-soft: #A2ADB4;
    --rule: #2D353B; --rule-strong: #4A555D; --accent: #8EA6FF; --accent-ink: #0E1530;
    --accent-tint: #1E2747; --wood: #D3B484; --m-line: #7D8890;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #14181B; --sheet: #1B2024; --ink: #E7EBED; --ink-soft: #A2ADB4;
  --rule: #2D353B; --rule-strong: #4A555D; --accent: #8EA6FF; --accent-ink: #0E1530;
  --accent-tint: #1E2747; --wood: #D3B484; --m-line: #7D8890;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; animation: none !important; } }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: var(--f-body); font-size: 16px; line-height: 1.85; letter-spacing: .02em;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; }
a { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }
h1, h2, h3 { text-wrap: balance; line-height: 1.4; margin: 0; }
p { margin: 0; }
.wrap { max-width: calc(var(--max) + 64px); margin: 0 auto; padding-left: var(--gutter-l); padding-right: var(--gutter-r); }
@media (min-width: 720px) { .wrap { padding-left: max(32px, env(safe-area-inset-left, 0px)); padding-right: max(32px, env(safe-area-inset-right, 0px)); } }
.mono { font-family: var(--f-mono); font-variant-numeric: tabular-nums; letter-spacing: 0; }

/* ヘッダー */
.site-header {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
}
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; }
.brand svg { width: 38px; height: 30px; flex: none; }
.brand-name { font-family: var(--f-display); font-weight: 800; font-size: 1.3rem; letter-spacing: .08em; }
.brand-sub { display: block; font-size: .68rem; color: var(--ink-soft); letter-spacing: .12em; line-height: 1.2; }
.nav { display: flex; gap: 4px; align-items: center; }
.nav a { color: var(--ink); text-decoration: none; font-size: .88rem; padding: 6px 10px; border-radius: 4px; }
.nav a:hover { background: var(--accent-tint); color: var(--accent); }
.nav .nav-cta { background: var(--accent); color: var(--accent-ink); font-weight: 700; margin-left: 6px; }
.nav .nav-cta:hover { background: var(--accent); color: var(--accent-ink); opacity: .9; }
.menu-btn { display: none; background: none; border: 1px solid var(--rule-strong); color: var(--ink); border-radius: 4px; padding: 6px 12px; font: inherit; font-size: .85rem; cursor: pointer; }
@media (max-width: 960px) {
  .menu-btn { display: inline-block; }
  .nav { display: none; position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; align-items: stretch; gap: 0;
         background: var(--paper); border-bottom: 1px solid var(--rule); padding: 8px var(--gutter-r) 16px var(--gutter-l); }
  .nav.open { display: flex; }
  .nav a { padding: 12px 8px; border-bottom: 1px solid var(--rule); border-radius: 0; }
  .nav .nav-cta { margin: 12px 0 0; text-align: center; border-radius: 4px; border-bottom: 0; }
}

/* ヒーロー */
.hero { padding-block: 56px 40px; }
.hero-grid { display: grid; grid-template-columns: 1fr; gap: 32px; align-items: center; }
@media (min-width: 880px) { .hero-grid { grid-template-columns: 1.05fr 1fr; gap: 48px; } }
.hero-text { min-width: 0; display: grid; gap: 22px; }
.eyebrow { font-size: .8rem; letter-spacing: .14em; color: var(--ink-soft); display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.eyebrow .mono { color: var(--accent); }
.hero h1 { font-family: var(--f-display); font-weight: 800; font-size: clamp(1.75rem, 4.6vw, 3.2rem); letter-spacing: .04em; line-height: 1.35; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero-lead { color: var(--ink-soft); max-width: 34em; }
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; border-radius: 4px; font: inherit; font-weight: 700; font-size: .95rem; text-decoration: none; cursor: pointer; border: 1px solid var(--accent); }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { opacity: .9; }
.btn-ghost { background: transparent; color: var(--accent); }
.btn-ghost:hover { background: var(--accent-tint); }
.hero-figure { min-width: 0; position: relative; }
.hero-figure svg { display: block; width: 100%; height: auto; }
.dim-label { position: absolute; font-family: var(--f-mono); font-size: .72rem; color: var(--ink-soft); letter-spacing: .04em; }
.dim-label.tl { left: 0; top: 0; }
.dim-label.br { right: 0; bottom: 0; text-align: right; }

/* 納期バー */
.leadtime { border: 1px solid var(--rule-strong); background: var(--sheet); display: grid; grid-template-columns: 1fr; }
@media (min-width: 720px) { .leadtime { grid-template-columns: 200px 1fr; } }
.leadtime-head { padding: 16px 20px; border-bottom: 1px solid var(--rule); display: grid; gap: 2px; align-content: center; }
@media (min-width: 720px) { .leadtime-head { border-bottom: 0; border-right: 1px solid var(--rule); } }
.leadtime-head strong { font-size: 1.05rem; }
.leadtime-head span { font-size: .78rem; color: var(--ink-soft); }
.leadtime-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }
.leadtime-list li { padding: 14px 20px; border-bottom: 1px solid var(--rule); display: grid; gap: 2px; }
@media (min-width: 720px) { .leadtime-list li { border-bottom: 0; border-left: 1px solid var(--rule); } .leadtime-list li:first-child { border-left: 0; } }
.leadtime-list .kind { font-size: .82rem; color: var(--ink-soft); }
.leadtime-list .days { font-family: var(--f-mono); font-size: 1.35rem; font-weight: 500; }
.leadtime-list .days small { font-family: var(--f-body); font-size: .8rem; margin-left: 2px; }
.leadtime-note { font-size: .78rem; color: var(--ink-soft); margin-top: 10px; }

/* セクション共通 */
.section { padding-block: 72px; border-top: 1px solid var(--rule); }
.sec-head { display: grid; gap: 10px; margin-bottom: 36px; max-width: 46em; }
.sec-no { font-family: var(--f-mono); font-size: .75rem; color: var(--accent); letter-spacing: .08em; }
.sec-head h2 { font-family: var(--f-display); font-weight: 800; font-size: clamp(1.55rem, 3.4vw, 2.2rem); letter-spacing: .05em; }
.sec-head p { color: var(--ink-soft); }

/* 3Dプリンターの強み */
.points { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 0; border-top: 1px solid var(--ink); }
.point { padding: 24px 24px 28px 0; display: grid; gap: 10px; align-content: start; min-width: 0; }
@media (min-width: 800px) { .point + .point { padding-left: 24px; border-left: 1px solid var(--rule); } }
.point h3 { font-size: 1.15rem; font-weight: 700; }
.point p { color: var(--ink-soft); font-size: .95rem; }
.point .tag { font-family: var(--f-mono); font-size: .72rem; color: var(--ink-soft); }
.formats { margin-top: 32px; display: flex; gap: 10px 14px; flex-wrap: wrap; align-items: center; font-size: .9rem; }
.formats b { font-weight: 700; margin-right: 4px; }
.chip { font-family: var(--f-mono); font-size: .8rem; padding: 3px 10px; border: 1px solid var(--rule-strong); border-radius: 999px; background: var(--sheet); }

/* 額装 間取り模型 */
.frame-grid { display: grid; grid-template-columns: 1fr; gap: 32px; align-items: start; }
@media (min-width: 880px) { .frame-grid { grid-template-columns: minmax(260px, 340px) 1fr; gap: 48px; } }
.frame-video { margin: 0; display: grid; gap: 8px; min-width: 0; width: 100%; max-width: 340px; justify-self: center; }
.frame-video video { display: block; width: 100%; max-width: 100%; aspect-ratio: 9 / 16; object-fit: cover; background: var(--sheet); border: 1px solid var(--rule-strong); }
.frame-video figcaption { font-size: .78rem; color: var(--ink-soft); }
.frame-body { min-width: 0; display: grid; gap: 28px; align-content: start; }
.frame-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--ink); }
.frame-list li { display: grid; grid-template-columns: 1fr; gap: 4px; padding: 16px 0; border-bottom: 1px solid var(--rule); }
@media (min-width: 600px) { .frame-list li { grid-template-columns: 6.5em 1fr; gap: 4px 20px; } }
.frame-list .tag { font-family: var(--f-mono); font-size: .72rem; color: var(--ink-soft); padding-top: 4px; }
.frame-list h3 { font-size: 1.05rem; font-weight: 700; }
.frame-list p { color: var(--ink-soft); font-size: .93rem; }
.frame-body .formats, .frame-body .pay { margin-top: 0; }
.frame-h3 { font-size: 1.05rem; margin-bottom: 12px; }
.frame-price { min-width: 0; }

/* 表 */
.table-scroll { overflow-x: auto; border: 1px solid var(--rule-strong); background: var(--sheet); }
table { border-collapse: collapse; width: 100%; min-width: 620px; font-size: .93rem; }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--rule); vertical-align: top; }
thead th { font-size: .78rem; color: var(--ink-soft); font-weight: 500; letter-spacing: .06em; background: var(--paper); }
tbody tr:last-child td, tbody tr:last-child th { border-bottom: 0; }
td.num, th.num { text-align: right; font-family: var(--f-mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
.scale { font-family: var(--f-mono); font-weight: 500; white-space: nowrap; }
.type-name { font-weight: 700; display: block; }
.type-desc { color: var(--ink-soft); font-size: .84rem; }
.price-grid { display: grid; gap: 32px; }
.price-grid > * { min-width: 0; }
.sub-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 32px; }
.sub-grid > div { min-width: 0; }
.sub-grid h3, .price-grid h3 { font-size: 1.05rem; margin-bottom: 12px; }
.sub-grid table { min-width: 0; }
.fine { font-size: .82rem; color: var(--ink-soft); margin-top: 10px; }
.formula { font-family: var(--f-mono); font-size: .9rem; background: var(--accent-tint); color: var(--ink); padding: 12px 16px; border-left: 3px solid var(--accent); overflow-x: auto; }

/* 見積りシミュレータ */
.sim { display: grid; grid-template-columns: 1fr; border: 1px solid var(--rule-strong); background: var(--sheet); }
@media (min-width: 880px) { .sim { grid-template-columns: 1.15fr 1fr; } }
.sim-form { padding: 28px; display: grid; gap: 22px; min-width: 0; }
.sim-out { padding: 28px; background: var(--paper); border-top: 1px solid var(--rule); display: grid; gap: 16px; align-content: start; min-width: 0; }
@media (min-width: 880px) { .sim-out { border-top: 0; border-left: 1px solid var(--rule); } }
.field { display: grid; gap: 8px; }
.field > label, .field > .label { font-weight: 700; font-size: .92rem; }
.step { font-family: var(--f-mono); color: var(--accent); margin-right: 6px; font-weight: 500; }
select, input[type="number"], input[type="text"], input[type="email"], input[type="tel"], textarea {
  font: inherit; font-size: 1rem; color: var(--ink); background: var(--sheet);
  border: 1px solid var(--rule-strong); border-radius: 4px; padding: 10px 12px; width: 100%;
}
textarea { min-height: 160px; resize: vertical; line-height: 1.7; }
.area-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.area-row input { width: 150px; flex: none; font-family: var(--f-mono); }
.seg { display: inline-flex; border: 1px solid var(--rule-strong); border-radius: 4px; overflow: hidden; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg label { padding: 9px 16px; cursor: pointer; font-size: .92rem; }
.seg input:checked + label { background: var(--accent); color: var(--accent-ink); }
.seg input:focus-visible + label { outline: 2px solid var(--accent); outline-offset: -2px; }
.conv { font-size: .82rem; color: var(--ink-soft); font-family: var(--f-mono); }
.checks { display: grid; gap: 8px; }
.check { display: flex; gap: 10px; align-items: baseline; font-size: .93rem; cursor: pointer; }
.check input { accent-color: var(--accent); width: 16px; height: 16px; flex: none; transform: translateY(2px); }
.check .mono { color: var(--ink-soft); font-size: .82rem; margin-left: auto; padding-left: 8px; white-space: nowrap; }
.sim-out h3 { font-size: .8rem; letter-spacing: .1em; color: var(--ink-soft); font-weight: 500; }
.bd { display: grid; gap: 0; }
.bd-row { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px dashed var(--rule); font-size: .93rem; }
.bd-row span:last-child { font-family: var(--f-mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
.bd-row .calc { display: block; font-size: .75rem; color: var(--ink-soft); font-family: var(--f-mono); }
.total { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding-top: 6px; border-top: 2px solid var(--ink); flex-wrap: wrap; }
.total b { font-size: .95rem; }
.total .amount { font-family: var(--f-mono); font-size: clamp(1.8rem, 4vw, 2.3rem); font-weight: 500; font-variant-numeric: tabular-nums; }
.total .amount small { font-family: var(--f-body); font-size: .9rem; margin-left: 2px; }
.sim-meta { font-size: .85rem; color: var(--ink-soft); }
.sim-meta strong { color: var(--ink); }

/* 作品ギャラリー */
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.work { margin: 0; display: grid; gap: 12px; min-width: 0; }
.work .ph { aspect-ratio: 4 / 3; background: var(--sheet); border: 1px solid var(--rule); display: grid; place-items: center; padding: 16px; max-width: 100%; }
.work .ph svg { width: 100%; height: 100%; }
.work .ph img { width: 100%; height: 100%; object-fit: cover; }
.work figcaption { display: grid; gap: 2px; }
.work figcaption b { font-size: 1rem; }
.work figcaption span { font-size: .82rem; color: var(--ink-soft); }
.work figcaption .mono { font-size: .78rem; color: var(--accent); }

/* ご注文の流れ */
.flow { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 0; counter-reset: flow; }
.flow li { counter-increment: flow; padding: 0 20px 24px 0; display: grid; gap: 8px; align-content: start; position: relative; min-width: 0; }
.flow li::before { content: "STEP " counter(flow); font-family: var(--f-mono); font-size: .75rem; color: var(--accent); padding-bottom: 10px; border-bottom: 1px solid var(--ink); }
.flow h3 { font-size: 1.02rem; }
.flow p { font-size: .9rem; color: var(--ink-soft); }
.pay { margin-top: 24px; display: grid; gap: 4px; font-size: .92rem; padding: 16px 20px; background: var(--sheet); border: 1px solid var(--rule); }

/* FAQ */
.faq { display: grid; border-top: 1px solid var(--ink); max-width: 860px; }
.faq details { border-bottom: 1px solid var(--rule); }
.faq summary { cursor: pointer; padding: 18px 36px 18px 0; font-weight: 700; list-style: none; position: relative; display: flex; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "Q"; font-family: var(--f-mono); color: var(--accent); font-weight: 500; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 16px; font-family: var(--f-mono); font-size: 1.2rem; color: var(--ink-soft); }
.faq details[open] summary::after { content: "−"; }
.faq .a { padding: 0 0 20px 26px; color: var(--ink-soft); font-size: .95rem; max-width: 46em; }

/* お問合わせ */
.contact-grid { display: grid; grid-template-columns: 1fr; gap: 32px; }
@media (min-width: 880px) { .contact-grid { grid-template-columns: 1fr 1.4fr; gap: 48px; } }
.contact-info { display: grid; gap: 20px; align-content: start; min-width: 0; }
.info-item { display: grid; gap: 4px; padding-bottom: 16px; border-bottom: 1px solid var(--rule); }
.info-item .k { font-size: .78rem; color: var(--ink-soft); letter-spacing: .08em; }
.info-item .v { font-family: var(--f-mono); font-size: 1.25rem; word-break: break-all; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.info-item .v a { color: var(--ink); text-decoration: none; }
.info-item .v.plain { font-family: var(--f-body); font-size: 1rem; }
.copy { font: inherit; font-family: var(--f-body); font-size: .75rem; padding: 3px 10px; border: 1px solid var(--rule-strong); border-radius: 4px; background: var(--sheet); color: var(--ink-soft); cursor: pointer; }
.copy:hover { color: var(--accent); border-color: var(--accent); }
.contact-form { display: grid; gap: 18px; background: var(--sheet); border: 1px solid var(--rule-strong); padding: 28px; min-width: 0; }
.form-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 18px; }
.req { font-size: .7rem; color: var(--accent); border: 1px solid var(--accent); border-radius: 2px; padding: 0 5px; margin-left: 6px; font-weight: 500; vertical-align: 2px; }
.form-msg { font-size: .88rem; padding: 12px 14px; background: var(--accent-tint); border-left: 3px solid var(--accent); }
.form-msg pre { white-space: pre-wrap; font-family: var(--f-body); font-size: .85rem; margin: 10px 0 0; max-height: 220px; overflow: auto; background: var(--sheet); padding: 10px; border: 1px solid var(--rule); }

/* 更新情報 */
.news { list-style: none; margin: 0; padding: 0; display: grid; max-width: 860px; }
.news li { display: grid; grid-template-columns: 9.5em 1fr; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--rule); font-size: .93rem; }
.news time { font-family: var(--f-mono); color: var(--ink-soft); font-size: .85rem; }
@media (max-width: 520px) { .news li { grid-template-columns: 1fr; gap: 2px; } }

/* フッター（表題欄） */
.site-footer { padding-block: 48px 32px; border-top: 1px solid var(--rule); }
.titleblock { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); border: 1.5px solid var(--ink); }
.tb-cell { padding: 10px 14px; border-right: 1px solid var(--rule-strong); border-bottom: 1px solid var(--rule-strong); display: grid; gap: 2px; min-width: 0; margin: 0 -1px -1px 0; }
.tb-cell .k { font-size: .68rem; color: var(--ink-soft); letter-spacing: .1em; }
.tb-cell .v { font-size: .92rem; }
.tb-cell.name .v { font-family: var(--f-display); font-weight: 800; font-size: 1.2rem; letter-spacing: .08em; }
.copyright { margin-top: 16px; font-size: .75rem; color: var(--ink-soft); display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* 模型イラスト */
.iso polygon { stroke: var(--m-line); stroke-width: .7; stroke-linejoin: round; vector-effect: non-scaling-stroke; }
.iso .t { fill: var(--m-top); } .iso .x { fill: var(--m-x); } .iso .y { fill: var(--m-y); }
.iso .w { fill: var(--m-win); stroke: none; }
.iso .bt { fill: var(--m-wood-top); } .iso .bx { fill: var(--m-wood-x); } .iso .by { fill: var(--m-wood-y); }
.iso .ct { fill: var(--m-c-wall); } .iso .cx { fill: var(--m-c-wall-x); } .iso .cy { fill: var(--m-c-wall-y); }
.iso .cr { fill: var(--m-c-roof); } .iso .crd { fill: var(--m-c-roof-d); }
.iso .grass { fill: #CFD8C6; stroke: none; }
.iso circle.tree { fill: var(--m-tree); stroke: var(--m-tree-d); stroke-width: .7; vector-effect: non-scaling-stroke; }
.iso .guide { stroke: var(--accent); stroke-width: .8; stroke-dasharray: 3 3; vector-effect: non-scaling-stroke; fill: none; opacity: .7; }
.float-up { animation: lift 1.4s cubic-bezier(.2,.7,.2,1) .3s both; }
@keyframes lift { from { transform: translateY(14px); } to { transform: translateY(0); } }

/* ユーティリティ（インラインstyleの代わり） */
.u-nowrap { white-space: nowrap; }
.u-mt48 { margin-top: 48px; }
.u-block { display: block; }
.u-mt0 { margin-top: 0; }
.u-m0 { margin: 0; }