:root {
  --ink: #252724;
  --paper: #f4efe4;
  --paper-deep: #e9dfce;
  --red: #416b7b;
  --moss: #69828a;
  --blue: #365f70;
  --line: rgba(37, 39, 36, 0.18);
  --soft-shadow: 0 18px 55px rgba(43, 65, 73, 0.07);
  --soft-radius: 30px;
  --serif: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  --sans: "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 12%, rgba(65, 107, 123, .045), transparent 30%),
    radial-gradient(circle at 92% 32%, rgba(112, 143, 153, .055), transparent 32%),
    var(--paper);
  font-family: var(--sans);
  line-height: 1.8;
}
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  padding: 0 5vw;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(12px);
  position: relative;
  z-index: 5;
}
.header-main { display: flex; align-items: center; gap: 18px; }
.brand { display: flex; align-items: center; gap: 14px; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--ink);
  border-radius: 58% 42% 55% 45% / 46% 55% 45% 54%;
  font: 22px var(--serif);
}
.brand-name { font: 18px var(--serif); letter-spacing: .18em; }
.brand-sub { font-size: 10px; letter-spacing: .14em; opacity: .62; }
.header-back { font-size: 13px; letter-spacing: .08em; }

.menu-button,
.menu-close {
  border: 0;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}
.menu-button {
  width: 42px;
  height: 42px;
  display: grid;
  place-content: center;
  gap: 5px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: background .2s, transform .2s;
}
.menu-button:hover { background: rgba(65,107,123,.08); transform: rotate(-3deg); }
.menu-button span { display: block; width: 17px; height: 1px; background: currentColor; }
.menu-overlay {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: rgba(24,39,45,.38);
  opacity: 0;
  backdrop-filter: blur(2px);
  transition: opacity .3s ease;
}
.menu-overlay[hidden] { display: none; }
.site-menu {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 90;
  width: min(390px, 88vw);
  padding: 30px 28px 24px;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(circle at 12% 12%, rgba(65,107,123,.08), transparent 32%),
    var(--paper);
  border-right: 1px solid var(--line);
  box-shadow: 22px 0 70px rgba(31,50,57,.16);
  translate: -105% 0;
  visibility: hidden;
  transition: translate .35s cubic-bezier(.22,.7,.28,1), visibility .35s;
}
.menu-open { overflow: hidden; }
.menu-open .menu-overlay { opacity: 1; }
.menu-open .site-menu { translate: 0 0; visibility: visible; }
.menu-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 22px; border-bottom: 1px solid var(--line); font: 500 21px var(--serif); letter-spacing: .16em; }
.menu-close { width: 40px; height: 40px; border: 1px solid var(--line); border-radius: 50%; font: 25px/1 var(--serif); }
.menu-links { display: grid; margin-top: 18px; }
.menu-links a { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; padding: 17px 3px; border-bottom: 1px solid var(--line); transition: color .2s, padding .2s; }
.menu-links a:hover { color: var(--blue); padding-left: 8px; }
.menu-links span { font: 500 18px var(--serif); letter-spacing: .08em; }
.menu-links small { font-size: 10px; opacity: .58; letter-spacing: .06em; text-align: right; }
.menu-legal { margin-top: auto; padding-top: 22px; font-size: 10px; opacity: .62; }

.thread-line {
  position: absolute;
  width: min(56vw, 760px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--red) 16%, var(--red) 78%, transparent);
  transform: rotate(-7deg);
  transform-origin: left;
  opacity: .7;
  pointer-events: none;
}
.thread-line::after {
  content: "";
  position: absolute;
  right: 16%;
  top: -7px;
  width: 14px;
  height: 14px;
  border: 1px solid var(--red);
  border-radius: 62% 38% 52% 48% / 42% 58% 42% 58%;
}

.home-hero {
  min-height: 62vh;
  display: grid;
  grid-template-columns: .9fr 1.4fr;
  gap: 7vw;
  align-items: center;
  padding: 9vw 8vw 8vw;
  position: relative;
  overflow: hidden;
}
.home-hero .thread-line { left: -4vw; top: 54%; }
.vertical-title {
  justify-self: center;
  writing-mode: vertical-rl;
  font: 500 clamp(48px, 8vw, 104px)/1 var(--serif);
  letter-spacing: .18em;
  color: rgba(54, 95, 112, .18);
}
.eyebrow { color: var(--red); font-size: 12px; letter-spacing: .22em; text-transform: uppercase; }
.hero-copy h1,
.room-hero h1 {
  margin: 18px 0 22px;
  font: 500 clamp(32px, 5vw, 68px)/1.45 var(--serif);
  letter-spacing: .08em;
}
.hero-copy p { max-width: 560px; font-size: clamp(15px, 1.5vw, 18px); }
.scroll-note { display: inline-flex; gap: 10px; margin-top: 28px; font-size: 12px; opacity: .62; }

.rooms {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  min-height: 580px;
  gap: 20px;
  padding: 20px 5vw 7vw;
}
.room-card {
  padding: clamp(36px, 6vw, 90px);
  position: relative;
  transition: color .25s, background .25s;
  border: 1px solid var(--line);
  border-radius: 42px 12px 42px 12px;
  box-shadow: var(--soft-shadow);
  overflow: hidden;
}
.room-card + .room-card { border-left: 1px solid var(--line); border-radius: 12px 42px 12px 42px; }
.room-card .num { font: 12px var(--sans); opacity: .55; }
.room-card h2 { margin: 80px 0 20px; font: 500 clamp(34px, 5vw, 66px) var(--serif); }
.room-card p { max-width: 430px; }
.room-card .enter { display: inline-block; margin-top: 46px; padding-bottom: 6px; border-bottom: 1px solid currentColor; }
.room-card:hover { background: #304b57; color: var(--paper); transform: translateY(-2px); }
.room-card.care:hover { background: #456875; }
.room-card.calm:hover { background: #6f8790; }
.three-rooms { grid-template-columns: 1.12fr .94fr .94fr; }
.three-rooms .room-card { padding: clamp(32px, 3.6vw, 56px); }
.three-rooms .room-card h2 {
  margin-top: 66px;
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.35;
  letter-spacing: .03em;
  white-space: nowrap;
}
.three-rooms .room-card p { font-size: 14px; }

.room-hero {
  min-height: 58vh;
  display: grid;
  align-content: center;
  padding: 8vw;
  position: relative;
  overflow: hidden;
}
.room-hero .thread-line { right: -12vw; bottom: 22%; transform: rotate(9deg); }
.room-hero p { max-width: 690px; }
.room-hero.dark { background: #263e49; color: #f3eee3; }
.room-hero.dark { border-radius: 0 0 72px 18px; }
.room-hero.care {
  background: radial-gradient(circle at 78% 24%, rgba(255,255,255,.68), transparent 32%), #e4ecec;
  color: #173c41;
  border-radius: 0 0 18px 72px;
}
.rakurun-hero { padding-right: min(38vw, 470px); }
.rakurun {
  position: absolute;
  right: 8vw;
  bottom: 50%;
  transform: translateY(50%) rotate(2deg);
  width: clamp(170px, 22vw, 270px);
  margin: 0;
  text-align: center;
}
.rakurun img {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border: 7px solid rgba(244,239,228,.92);
  border-radius: 48% 52% 46% 54% / 52% 45% 55% 48%;
  box-shadow: 0 18px 45px rgba(43,65,73,.12);
  filter: saturate(.78) hue-rotate(8deg);
}
.rakurun figcaption {
  display: inline-block;
  margin-top: 10px;
  padding: 4px 13px;
  border-radius: 999px;
  background: rgba(244,239,228,.82);
  color: var(--blue);
  font-size: 11px;
  letter-spacing: .08em;
  white-space: nowrap;
}

.path-section { padding: 7vw 8vw 9vw; }
.section-head { display: flex; justify-content: space-between; gap: 28px; align-items: end; margin-bottom: 42px; }
.section-head h2 { margin: 0; font: 500 clamp(28px, 4vw, 48px) var(--serif); }
.section-head p { max-width: 520px; margin: 0; font-size: 14px; }
.path-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.path-card { min-height: 320px; padding: 34px; position: relative; border: 1px solid var(--line); border-radius: var(--soft-radius); background: rgba(255,255,255,.2); box-shadow: var(--soft-shadow); }
.path-card:nth-child(2) { border-radius: 46px 18px; }
.path-card:nth-child(3) { border-radius: 18px 46px; }
.path-card h3 { margin: 52px 0 14px; font: 500 27px var(--serif); }
.path-card p { font-size: 14px; }
.path-card .arrow { position: absolute; right: 30px; bottom: 24px; font-size: 26px; }
.path-card:hover { background: #e5e8e4; transform: translateY(-2px); }
.price-tag { color: var(--red); font-size: 13px; font-weight: 700; }

.tools { padding: 8vw; background: linear-gradient(145deg, #ebe7dd, #e1e8e8); border-radius: 70px 18px 0 0; }
.tool-groups { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.tool-group { padding: 30px; border: 1px solid var(--line); background: rgba(255,255,255,.34); border-radius: 28px 10px 28px 10px; box-shadow: 0 12px 40px rgba(52,47,38,.06); }
.tool-group h3 { font: 500 24px var(--serif); margin: 0 0 18px; }
.tool-list { display: grid; gap: 2px; }
.tool-link { display: flex; justify-content: space-between; gap: 16px; padding: 13px 0; border-top: 1px solid var(--line); font-size: 14px; }
.badge { flex: 0 0 auto; font-size: 10px; letter-spacing: .08em; color: var(--red); }

.books { padding: 8vw; }
.pr-note { margin-top: 5px !important; font-size: 10px !important; opacity: .62; }
.book-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.book-card { min-height: 290px; padding: 30px; border: 1px solid var(--line); border-radius: 30px 10px 30px 10px; position: relative; background: rgba(255,255,255,.22); box-shadow: var(--soft-shadow); }
.book-card:nth-child(2) { border-radius: 10px 30px; }
.book-card h3 { margin: 42px 0 14px; font: 500 22px/1.55 var(--serif); color: var(--blue); }
.book-card p { font-size: 13px; }
.book-card > span:last-child { position: absolute; right: 26px; bottom: 22px; color: var(--blue); font-size: 12px; }

.care-tools { padding: 7vw 8vw 10vw; }
.care-intro { max-width: 740px; margin-bottom: 44px; }
.care-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 18px; }
.care-tool { padding: 34px; color: white; min-height: 300px; position: relative; box-shadow: var(--soft-shadow); transition: transform .25s, box-shadow .25s; overflow: hidden; }
.care-tool::before { content: ""; position: absolute; width: 150px; height: 150px; right: -52px; top: -58px; border: 1px solid rgba(255,255,255,.24); border-radius: 64% 36% 55% 45% / 43% 60% 40% 57%; }
.care-tool:hover { transform: translateY(-2px); box-shadow: 0 22px 60px rgba(43,65,73,.12); }
.care-tool:nth-child(1) { grid-column: span 6; background: #3d6472; border-radius: 42px 14px 42px 14px; }
.care-tool:nth-child(2) { grid-column: span 6; background: #617f89; border-radius: 14px 42px 14px 42px; }
.care-tool:nth-child(3) { grid-column: span 4; background: #78929a; border-radius: 42px 14px 42px 14px; }
.care-tool h2 { font: 500 clamp(24px, 2.7vw, 36px)/1.4 var(--serif); margin: 46px 0 14px; letter-spacing: .02em; }
.monitoring-choice h2 { font-size: clamp(22px, 2.25vw, 31px); white-space: nowrap; }
.care-tool p { max-width: 520px; font-size: 14px; }
.care-tool .arrow { position: absolute; right: 30px; bottom: 24px; }
.care-tool-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  position: absolute;
  left: 34px;
  right: 34px;
  bottom: 26px;
}
.care-tool-actions a {
  padding: 8px 14px;
  border: 1px solid rgba(255,255,255,.55);
  border-radius: 999px;
  color: #fff;
  font-size: 12px;
  transition: background .2s, color .2s;
}
.care-tool-actions a:hover { background: rgba(255,255,255,.16); }
.care-tool-actions .rakurun-version { background: rgba(244,239,228,.92); color: #365f70; border-color: transparent; }
.privacy-note { margin-top: 34px; padding: 22px 0; border-top: 1px solid var(--line); font-size: 13px; }
.privacy-note::before {
  content: "";
  display: inline-block;
  width: 14px;
  height: 12px;
  margin-right: 8px;
  border: 1.5px solid var(--blue);
  border-radius: 4px;
  vertical-align: -1px;
  background: linear-gradient(var(--paper), var(--paper));
}

.calm-hero {
  background: linear-gradient(145deg, #dfe8e8, #f1ede3);
  color: #294b58;
  border-radius: 0 0 72px 18px;
}
.calm-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.calm-card {
  display: block;
  min-height: 310px;
  padding: 34px;
  border: 1px solid rgba(54,95,112,.22);
  border-radius: 46px 14px 46px 14px;
  background: rgba(255,255,255,.32);
  position: relative;
  box-shadow: var(--soft-shadow);
}
.calm-card:nth-child(2) { border-radius: 14px 46px; }
.calm-card h2 { margin: 54px 0 16px; font: 500 30px var(--serif); color: #365f70; }
.calm-card p { font-size: 14px; }
.calm-card .arrow { position: absolute; right: 30px; bottom: 24px; }
.calm-card:hover { background: #e1e9e8; transform: translateY(-2px); }

.site-footer { display: flex; justify-content: space-between; gap: 24px; padding: 34px 8vw; border-top: 1px solid var(--line); font-size: 12px; }

/* 静けさを保った、入口ページだけの小さな動き */
@keyframes soft-arrival {
  from { opacity: 0; translate: 0 12px; }
  to { opacity: 1; translate: 0 0; }
}

@keyframes thread-draw {
  from { clip-path: inset(0 100% 0 0); }
  to { clip-path: inset(0 0 0 0); }
}

@keyframes rakurun-breathe {
  0%, 100% { transform: translateY(0) rotate(0); }
  50% { transform: translateY(-5px) rotate(-.7deg); }
}

.home-hero .thread-line,
.room-hero .thread-line {
  animation: thread-draw 1.6s .18s cubic-bezier(.22, .7, .28, 1) both;
}

.home-hero .vertical-title,
.home-hero .hero-copy > *,
.room-hero > .eyebrow,
.room-hero > h1,
.room-hero > p {
  animation: soft-arrival .95s cubic-bezier(.22, .7, .28, 1) both;
}

.home-hero .vertical-title { animation-delay: .08s; }
.home-hero .hero-copy > :nth-child(1),
.room-hero > .eyebrow { animation-delay: .18s; }
.home-hero .hero-copy > :nth-child(2),
.room-hero > h1 { animation-delay: .3s; }
.home-hero .hero-copy > :nth-child(3),
.room-hero > p { animation-delay: .42s; }
.home-hero .hero-copy > :nth-child(4) { animation-delay: .56s; }

.rakurun img {
  animation: rakurun-breathe 5.8s 1.2s ease-in-out infinite;
}

.motion-ready .motion-reveal {
  opacity: 0;
  translate: 0 14px;
  transition:
    opacity .85s cubic-bezier(.22, .7, .28, 1) var(--reveal-delay, 0ms),
    translate .85s cubic-bezier(.22, .7, .28, 1) var(--reveal-delay, 0ms);
}

.motion-ready .motion-reveal.is-visible {
  opacity: 1;
  translate: 0 0;
}

@media (max-width: 760px) {
  .site-header { min-height: 66px; padding: 0 20px; }
  .header-main { gap: 11px; }
  .menu-button { width: 38px; height: 38px; }
  .site-header .header-back { display: none; }
  .site-menu { padding: 22px 22px 20px; }
  .brand-sub { display: none; }
  .home-hero { min-height: 0; display: block; padding: 76px 28px 88px; }
  .home-hero .vertical-title { position: absolute; left: 22px; top: 198px; writing-mode: horizontal-tb; font-size: 116px; color: rgba(54, 95, 112, .08); }
  .hero-copy { position: relative; z-index: 1; }
  .hero-copy h1 { font-size: 30px; line-height: 1.6; letter-spacing: .035em; }
  .room-hero h1 { font-size: 32px; }
  .rooms { grid-template-columns: 1fr; min-height: 0; }
  .three-rooms { grid-template-columns: 1fr; }
  .three-rooms .room-card { padding: 40px 28px; }
  .three-rooms .room-card h2 { margin-top: 54px; font-size: 36px; white-space: normal; }
  .room-card { min-height: 400px; padding: 42px 28px; }
  .room-card + .room-card { border-left: 1px solid var(--line); border-top: 1px solid var(--line); }
  .room-card h2 { margin-top: 58px; font-size: 42px; }
  .room-hero { min-height: 62vh; padding: 70px 28px; }
  .rakurun-hero { padding: 62px 28px 44px; }
  .rakurun { position: relative; right: auto; bottom: auto; transform: rotate(1deg); width: 150px; margin: 34px auto 0; }
  .path-section, .tools, .care-tools { padding: 64px 20px; }
  .section-head { display: block; }
  .section-head p { margin-top: 18px; }
  .path-grid { grid-template-columns: 1fr; }
  .path-card { min-height: 240px; }
  .path-card + .path-card { border-left: 1px solid var(--line); border-top: 1px solid var(--line); }
  .tool-groups { grid-template-columns: 1fr; }
  .book-grid { grid-template-columns: 1fr; }
  .books { padding: 64px 20px; }
  .care-grid { display: grid; grid-template-columns: 1fr; }
  .care-tool:nth-child(n) { grid-column: 1; min-height: 280px; }
  .monitoring-choice h2 { font-size: 27px; white-space: normal; }
  .calm-grid { grid-template-columns: 1fr; }
  .site-footer { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
  .motion-ready .motion-reveal {
    opacity: 1;
    translate: none;
  }
}