/* Hallmark · genre: editorial (light) · macrostructure: split ledger (area: split hero text|framed photo, sub-area tabs, numbered cards with a proof slip, ledger table, glossary) · theme: custom "yukemuri"
 * paper: warm washi oklch(97% 0.012 85) · ink: sumi brown-black · accent: vermilion oklch(52% 0.16 35) · water: oklch(52% 0.06 195)
 * type: Satoshi (Fontshare, free commercial licence) display 700 + body 400/500; Japanese quotes in the system Mincho stack
 * audience: couples and first-time Japan travellers, phone-first · use: pick a room with a real onsen bath, check prices · tone: calm Japanese inn
 * differs from Tubroom (Fraunces/teal), Swim Up (Bricolage/blue), Slopeside (Archivo), Igloo (General Sans/navy, full-bleed hero)
 * pre-emit critique: P4 H4 E4 S5 R4 V5
 */
@font-face{font-family:"Satoshi";src:url(/fonts/satoshi-400.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Satoshi";src:url(/fonts/satoshi-500.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"Satoshi";src:url(/fonts/satoshi-700.woff2) format("woff2");font-weight:700;font-display:swap}
:root{
  --color-paper:oklch(97% 0.012 85);
  --color-paper-2:oklch(99.3% 0.005 85);
  --color-paper-3:oklch(93.5% 0.018 80);
  --color-line:oklch(86% 0.022 75);
  --color-line-soft:oklch(91% 0.016 80);
  --color-ink:oklch(24% 0.02 55);
  --color-ink-2:oklch(38% 0.02 55);
  --color-ink-3:oklch(49% 0.02 60);
  --color-accent:oklch(52% 0.16 35);
  --color-accent-hover:oklch(45% 0.15 35);
  --color-accent-ink:oklch(99% 0.006 85);
  --color-accent-wash:oklch(94% 0.035 45);
  --color-water:oklch(50% 0.065 195);
  --color-water-wash:oklch(94.5% 0.022 190);
  --color-wood:oklch(72% 0.07 70);
  --color-wood-2:oklch(62% 0.075 60);
  --color-tatami:oklch(86% 0.06 105);
  --color-hill:oklch(80% 0.04 150);
  --color-steam:oklch(80% 0.01 85);
  --color-unk:oklch(55% 0.015 60);
  --color-focus:oklch(52% 0.16 35);
  --shadow:0 1px 2px oklch(24% 0.02 55 / .06),0 6px 20px oklch(24% 0.02 55 / .06);
  --font-display:"Satoshi",ui-sans-serif,system-ui,sans-serif;
  --font-body:"Satoshi",ui-sans-serif,system-ui,sans-serif;
  --font-ja:"Hiragino Mincho ProN","Yu Mincho","YuMincho","Noto Serif JP","Noto Serif CJK JP",serif;
  --r:6px; --r-lg:12px;
}
*{box-sizing:border-box}
html,body{overflow-x:clip}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--color-paper);color:var(--color-ink);font:400 1.0625rem/1.65 var(--font-body)}
a{color:var(--color-accent);text-underline-offset:.18em}
a:hover{color:var(--color-accent-hover)}
:focus-visible{outline:2px solid var(--color-focus);outline-offset:3px;border-radius:3px}
h1,h2,h3{font-family:var(--font-display);font-weight:700;font-style:normal;letter-spacing:-.02em;line-height:1.12;margin:0;overflow-wrap:anywhere;min-width:0}
h1{font-size:clamp(2rem,3.6vw + .6rem,3.3rem)}
h2{font-size:clamp(1.5rem,1.8vw + .7rem,2rem);margin-bottom:.6rem}
h3{font-size:1.25rem}
p{margin:0}
[lang="ja"]{font-family:var(--font-ja);letter-spacing:.02em}
.tnum{font-variant-numeric:tabular-nums}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
.skip{position:absolute;left:-999px}.skip:focus{left:1rem;top:1rem;z-index:9;background:var(--color-paper);padding:.5rem 1rem}
.wrap{max-width:72rem;margin:0 auto;padding:0 clamp(1rem,4vw,2rem)}

/* nav */
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-top:1rem;padding-bottom:1rem;border-bottom:1px solid var(--color-line-soft)}
.logo{display:flex;align-items:center;gap:.55rem;color:var(--color-ink);text-decoration:none;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.logo__mark{width:34px;height:24px;fill:none;stroke-linecap:round;stroke-linejoin:round}
.logo__steam{stroke:var(--color-water);stroke-width:2}
.logo__tub{stroke:var(--color-wood-2);stroke-width:2.4;fill:var(--color-water-wash)}
.nav__links{display:flex;gap:1.1rem;font-size:.95rem}
.nav__links a{color:var(--color-ink-2);text-decoration:none;white-space:nowrap}
.nav__links a:hover{color:var(--color-accent)}
@media (max-width:620px){.nav__links a:not(:last-child){display:none}}

/* crumbs */
.crumbs ol{list-style:none;margin:0 0 .9rem;padding:0;display:flex;flex-wrap:wrap;gap:.35rem;font-size:.88rem;color:var(--color-ink-3)}
.crumbs li{white-space:nowrap}
.crumbs li+li::before{content:"/";margin-right:.35rem;color:var(--color-line)}
.crumbs a{color:var(--color-ink-3)}

/* split hero */
.hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:clamp(1.5rem,4vw,3.5rem);align-items:center;padding-top:clamp(1.5rem,4vw,3rem);padding-bottom:clamp(1.5rem,3vw,2.5rem)}
.hero__lede{font-size:1.18rem;line-height:1.55;margin-top:1rem;color:var(--color-ink)}
.hero__lede b{color:var(--color-accent);font-weight:700}
.hero__intro{margin-top:.8rem;color:var(--color-ink-2)}
.hero__fig{margin:0;min-width:0}
.hero__img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--shadow)}
.credit{font-size:.78rem;color:var(--color-ink-3);margin-top:.4rem}
.credit a{color:var(--color-ink-3)}
@media (max-width:860px){.hero{grid-template-columns:minmax(0,1fr)}.hero__fig{order:-1}.hero__img{aspect-ratio:16/9}}

/* pick bar */
.pick{margin-top:1rem}
.pick__bar{display:grid;gap:1rem;background:var(--color-paper-2);border:1px solid var(--color-line);border-radius:var(--r-lg);padding:1rem;box-shadow:var(--shadow)}
.dates{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) minmax(0,.6fr);gap:.6rem}
.dates label{display:grid;gap:.2rem;min-width:0;font-size:.82rem;color:var(--color-ink-3);font-weight:500}
.dates input,.dates select{font:inherit;font-size:1rem;color:var(--color-ink);background:var(--color-paper);border:1px solid var(--color-line);border-radius:var(--r);padding:.55rem .6rem;min-width:0;width:100%}
.filters{border:0;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.45rem}
.filters legend{font-size:.82rem;color:var(--color-ink-3);font-weight:500;margin-bottom:.4rem;padding:0}
.filters label{display:inline-flex;align-items:center;gap:.4rem;border:1px solid var(--color-line);border-radius:99px;padding:.35rem .8rem;font-size:.92rem;background:var(--color-paper);cursor:pointer;white-space:nowrap}
.filters label:has(input:checked){background:var(--color-water-wash);border-color:var(--color-water)}
.filters input{accent-color:var(--color-water);margin:0}
.filters span,.subs span{color:var(--color-ink-3);font-size:.82rem}
.subs{list-style:none;margin:0;padding:0;display:flex;gap:.3rem;overflow-x:auto;scrollbar-width:thin;padding-bottom:.2rem}
.subs button{font:inherit;font-size:.9rem;border:0;border-bottom:2px solid transparent;background:none;color:var(--color-ink-2);padding:.35rem .6rem;cursor:pointer;white-space:nowrap}
.subs button[aria-pressed="true"]{color:var(--color-ink);border-bottom-color:var(--color-accent);font-weight:700}
.pick__none{margin:1rem 0;color:var(--color-ink-2)}

/* cards */
.cards{list-style:none;margin:1.5rem 0 0;padding:0;display:grid;gap:1.25rem}
.card{background:var(--color-paper-2);border:1px solid var(--color-line);border-radius:var(--r-lg);padding:clamp(1rem,3vw,1.5rem);display:grid;gap:.8rem;box-shadow:var(--shadow)}
.card[hidden]{display:none}
.card__head{display:flex;gap:1rem;align-items:flex-start}
.card__n{font-weight:700;font-size:1.05rem;color:var(--color-accent);border:1.5px solid var(--color-accent);border-radius:50%;width:2.4rem;height:2.4rem;display:grid;place-items:center;flex:none}
.card__name a{color:var(--color-ink);text-decoration:none}
.card__name a:hover{color:var(--color-accent)}
.card__where{font-size:.9rem;color:var(--color-ink-3);margin-top:.2rem}
.card__room{display:flex;flex-wrap:wrap;align-items:baseline;gap:.5rem;font-weight:500;background:var(--color-paper-3);border-radius:var(--r);padding:.55rem .8rem}
.card__room span{font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--color-ink-3);font-weight:700}
.chips{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.35rem}
.chip{font-size:.82rem;border:1px solid var(--color-line);border-radius:99px;padding:.15rem .65rem;color:var(--color-ink-2);background:var(--color-paper)}
.chip--bath{border-color:var(--color-water);color:var(--color-water);background:var(--color-water-wash);font-weight:500}
.card__act{display:flex;flex-wrap:wrap;align-items:center;gap:1rem}
.card__more{font-weight:500;white-space:nowrap}
.btn{display:inline-block;background:var(--color-accent);color:var(--color-accent-ink);text-decoration:none;font-weight:700;padding:.7rem 1.3rem;border-radius:var(--r);white-space:nowrap;transition:background .15s}
.btn:hover{background:var(--color-accent-hover);color:var(--color-accent-ink)}
.btn--wide{display:block;text-align:center}

/* proof slip */
.proof{margin:0;border-left:3px solid var(--color-water);background:var(--color-water-wash);border-radius:0 var(--r) var(--r) 0;padding:.75rem 1rem}
.proof blockquote{margin:0}
.proof blockquote p{font-size:1.05rem;line-height:1.7;color:var(--color-ink)}
.proof figcaption{display:grid;gap:.25rem;margin-top:.4rem;font-size:.9rem}
.proof__en{color:var(--color-ink-2)}
.proof figcaption a{font-size:.82rem;color:var(--color-water)}
.quotes{display:grid;gap:.8rem}

/* compare */
.compare{margin-top:3rem}
.compare__sub{color:var(--color-ink-3);font-size:.92rem;margin-bottom:.8rem}
.compare__scroll{overflow-x:auto;border:1px solid var(--color-line);border-radius:var(--r-lg);background:var(--color-paper-2)}
.grid{border-collapse:collapse;width:100%;min-width:760px;font-size:.92rem}
.grid th,.grid td{padding:.65rem .8rem;text-align:left;border-bottom:1px solid var(--color-line-soft);vertical-align:top}
.grid thead th{background:var(--color-paper-3);font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;color:var(--color-ink-2)}
.grid tbody tr:nth-child(even){background:var(--color-paper)}
.grid tbody th{font-weight:500}
.grid tbody th a{color:var(--color-ink)}
.v{display:inline-flex;align-items:center;gap:.3rem;white-space:nowrap}
.i{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;flex:none}
.v--yes{color:var(--color-water);font-weight:500}
.v--unk{color:var(--color-unk)}
.v--unk .i{fill:currentColor}

/* glossary */
.words{margin-top:3rem;background:var(--color-paper-3);border-radius:var(--r-lg);padding:clamp(1.2rem,3vw,2rem)}
.words>p{color:var(--color-ink-2);max-width:42rem}
.words__l{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,15rem),1fr));gap:.8rem;margin:1.2rem 0}
.words__l div{background:var(--color-paper-2);border-radius:var(--r);padding:.8rem 1rem;border:1px solid var(--color-line-soft)}
.words__l dt{font-size:1.45rem;color:var(--color-ink)}
.words__l dd{margin:.2rem 0 0;color:var(--color-ink-2);font-size:.95rem}

/* faq, next */
.faq{margin-top:3rem;max-width:46rem}
.faq__i{border-bottom:1px solid var(--color-line)}
.faq__i summary{cursor:pointer;font-weight:700;padding:.9rem 0;list-style:none;display:flex;justify-content:space-between;gap:1rem}
.faq__i summary::after{content:"+";color:var(--color-accent);font-size:1.3rem;line-height:1}
.faq__i[open] summary::after{content:"\2212"}
.faq__i p{padding-bottom:1rem;color:var(--color-ink-2)}
.next{margin:3rem 0}
.next ul{padding-left:1.1rem}

/* property */
.prop{padding-top:1.5rem}
.prop__eyebrow a{font-size:.88rem;font-weight:500;text-transform:uppercase;letter-spacing:.07em;text-decoration:none}
.prop__head h1{margin-top:.4rem;max-width:22ch}
.prop__ja{font-size:1.15rem;color:var(--color-ink-2);margin-top:.4rem}
.prop__lede{color:var(--color-ink-2);margin:.6rem 0 .8rem}
.prop__fold{display:grid;grid-template-columns:minmax(0,1fr) 20rem;gap:2.5rem;margin-top:1.5rem;align-items:start}
.prop__main{display:grid;gap:2rem;min-width:0}
.book{background:var(--color-paper-2);border:1px solid var(--color-line);border-radius:var(--r-lg);padding:1.25rem;box-shadow:var(--shadow)}
.book__k{font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--color-ink-3);font-weight:700}
.book__room{font-size:1.4rem;font-weight:700;margin:.2rem 0 1rem}
.draw{display:block;width:100%;height:auto;border-radius:var(--r)}
.draw__wall{fill:var(--color-water-wash)}
.draw__hill{fill:var(--color-hill)}
.draw__floor{fill:var(--color-wood)}
.draw__tatami{fill:var(--color-tatami);stroke:var(--color-wood-2);stroke-width:1.5}
.draw__shoji{fill:var(--color-paper-2);stroke:var(--color-wood-2);stroke-width:2}
.draw__deck{fill:var(--color-wood-2)}
.draw__tub{fill:var(--color-wood);stroke:var(--color-ink-2);stroke-width:1.5}
.draw__water{stroke:var(--color-water);stroke-width:5;stroke-linecap:round}
.draw__pipe{fill:none;stroke:var(--color-ink-2);stroke-width:3;stroke-linecap:round}
.draw__steam{fill:none;stroke:var(--color-steam);stroke-width:2.5;stroke-linecap:round}
.draw__lab{font:500 12px var(--font-body);fill:var(--color-ink)}
.spec{width:100%;border-collapse:collapse;border:1px solid var(--color-line);border-radius:var(--r-lg);overflow:hidden;background:var(--color-paper-2)}
.spec caption{text-align:left;font-weight:700;font-size:1.25rem;margin-bottom:.6rem}
.spec th,.spec td{padding:.65rem .9rem;border-bottom:1px solid var(--color-line-soft);text-align:left;vertical-align:top}
.spec th{width:42%;background:var(--color-paper-3);font-weight:500;color:var(--color-ink-2);font-size:.95rem}
.spec tr.is-pick td{background:var(--color-accent-wash)}
.spec .ja{display:block;font-size:.95rem;color:var(--color-ink-2);margin-top:.15rem}
.note{color:var(--color-ink-2);border-left:3px solid var(--color-wood);padding-left:.9rem}
.steps ol{padding-left:1.2rem;display:grid;gap:.5rem}
.near ul{list-style:none;padding:0;margin:0 0 .8rem;display:grid;gap:.5rem}
.near li{display:grid;background:var(--color-paper-2);border:1px solid var(--color-line-soft);border-radius:var(--r);padding:.6rem .9rem}
.near li span{font-size:.88rem;color:var(--color-ink-3)}
.side{position:sticky;top:1rem}
.side__box{background:var(--color-paper-2);border:1px solid var(--color-line);border-radius:var(--r-lg);padding:1.1rem;display:grid;gap:.8rem;box-shadow:var(--shadow)}
.side__box .dates{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
.side__box .dates__ad{grid-column:1/-1}
.side__k{font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--color-ink-3);font-weight:700}
.side__room{font-weight:700}
.side__small{font-size:.8rem;color:var(--color-ink-3)}
.phonebar{display:none}
@media (max-width:860px){
  .prop__fold{grid-template-columns:minmax(0,1fr)}
  .side{position:static}
  .phonebar{display:flex;position:fixed;inset:auto 0 0;z-index:6;align-items:center;justify-content:space-between;gap:.8rem;padding:.6rem 1rem;background:var(--color-paper-2);border-top:1px solid var(--color-line);box-shadow:0 -4px 16px oklch(24% 0.02 55 / .08)}
  .phonebar span{font-weight:500;font-size:.9rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
  body:has(.phonebar){padding-bottom:4.5rem}
}
@media (max-width:420px){.dates{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.dates__ad{grid-column:1/-1}}

/* prose */
.prose{max-width:46rem;padding-top:2rem;padding-bottom:3rem}
.prose h1{margin-bottom:1rem}
.prose__lede{font-size:1.15rem;color:var(--color-ink);margin-bottom:1.5rem}
.prose p+p{margin-top:.8rem}
.prose__s{margin-top:2rem}

/* home */
.acards{list-style:none;padding:0;margin:1rem 0 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,20rem),1fr));gap:1.25rem}
.acard a{display:block;text-decoration:none;color:var(--color-ink);background:var(--color-paper-2);border:1px solid var(--color-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow)}
.acard img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}
.acard div{padding:1rem 1.1rem}
.acard p{color:var(--color-ink-3);font-size:.92rem;margin-top:.3rem}
.acard b{color:var(--color-accent)}
.areas{margin-top:1rem}
.rule{margin-top:3rem;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:2rem;align-items:center}
.rule__img{display:block;width:100%;height:auto;border-radius:var(--r-lg)}
@media (max-width:760px){.rule{grid-template-columns:minmax(0,1fr)}}

/* footer */
.foot{margin-top:4rem;border-top:1px solid var(--color-line);background:var(--color-paper-3);padding:2rem 0 2.5rem;font-size:.92rem;color:var(--color-ink-2)}
.foot__small{margin-top:.6rem;color:var(--color-ink-3)}
.foot__legal{display:flex;flex-wrap:wrap;gap:1rem;margin-top:.8rem}
.foot__legal a,.foot__small a{color:var(--color-ink-3);white-space:nowrap}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.spec{table-layout:fixed}.spec th,.spec td{overflow-wrap:anywhere}
@media (max-width:360px){.spec th,.spec td{padding:.55rem .6rem}}