/* ===== ペッターのページ: 夕方から夜の、あたたかい灯りの部屋 ===== */

.petter-page {
  --kabe: #e9e1cf;
  --kabe-shita: #d8cbb3;
  --yuka: #b88a5a;
  --yuka-kage: #a77b4e;
  --habaki: #7e5a39;
  --midori: #7d9a78;
  --midori-koi: #3f5f3f;
  --midori-fuchi: #314c33;
  --tomoshibi: #f0d49a;
  --kami: #f7f0df;
  --ai: #1a2135;
  --floor-h: 190px;

  min-height: 100vh;
  color: var(--ai);
  background: var(--kabe);
  line-height: 1.8;
}

/* 路地の背景を、部屋の壁（生成りの壁紙）に置き換える */
.petter-page::before {
  background:
    radial-gradient(ellipse 70% 40% at 50% 0, rgba(240, 212, 154, .3), transparent 70%),
    repeating-linear-gradient(90deg, transparent 0 46px, rgba(120, 96, 64, .045) 46px 47px),
    linear-gradient(var(--kabe), #e2d8c3);
  background-size: auto;
  background-repeat: no-repeat, repeat, no-repeat;
  box-shadow: none;
}

.petter-main a:focus-visible { outline: 3px solid var(--ai); outline-offset: 4px; }
.petter-main { overflow: hidden; }

/* ----- 最初の画面 ----- */

.petter-hero {
  position: relative;
  background:
    radial-gradient(ellipse 50% 60% at 30% 55%, rgba(240, 212, 154, .3), transparent 70%),
    linear-gradient(var(--kabe), var(--kabe-shita));
}

/* 床: 下から --floor-h の高さの板張り */
.petter-hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: var(--floor-h);
  content: "";
  background:
    linear-gradient(rgba(70, 42, 20, .22), transparent 30%),
    repeating-linear-gradient(90deg, transparent 0 167px, rgba(86, 54, 28, .22) 167px 169px),
    repeating-linear-gradient(180deg, var(--yuka) 0 34px, var(--yuka-kage) 34px 36px),
    var(--yuka);
  pointer-events: none;
}

/* 幅木: 壁と床の境目（床の線） */
.petter-hero::before {
  position: absolute;
  z-index: 0;
  right: 0;
  bottom: var(--floor-h);
  left: 0;
  height: 14px;
  content: "";
  background: linear-gradient(#f3ecdd 0 3px, #9b7450 3px 5px, var(--habaki) 5px);
  box-shadow: 0 4px 6px rgba(70, 42, 20, .18);
  pointer-events: none;
}

.petter-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  width: min(calc(100% - 32px), 1080px);
  margin-inline: auto;
  padding-top: 40px;
}

.petter-hero__copy { position: relative; z-index: 2; }
.petter-hero h1 { margin: 0; font-size: clamp(2.5rem, 8vw, 5rem); line-height: 1.12; letter-spacing: .08em; }

/* 一言は言葉の切れ目（<wbr>）でだけ折り返す */
.petter-lead { max-width: 24em; margin: 18px 0 0; font-size: clamp(1.05rem, 2.2vw, 1.25rem); font-weight: 700; word-break: keep-all; overflow-wrap: normal; }

.petter-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 0; }
.petter-tags span { padding: 4px 12px; border: 1px solid #4b5f48; border-radius: 999px; color: #263b28; background: rgba(255, 255, 255, .5); font-size: .875rem; font-weight: 700; }

/* 一番目立つボタン（くすんだ緑の地に白い字） */
.petter-cta {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  margin-top: 28px;
  padding: 12px 26px;
  border: 2px solid var(--midori-fuchi);
  border-radius: 6px;
  color: #fff;
  background: var(--midori-koi);
  box-shadow: 0 8px 18px rgba(47, 63, 38, .25);
  font-weight: 700;
  text-decoration: none;
}

.petter-cta:hover { color: #fff; background: var(--midori-fuchi); }

/* 部屋の絵。下の端が最初の画面の下の端にそろい、床の線は下から --floor-h の所 */
.room { position: relative; min-width: 0; height: 620px; }

.room__window {
  position: absolute;
  top: 48px;
  left: 0;
  width: 32%;
  height: 200px;
  overflow: hidden;
  border: 10px solid #f2eadb;
  background:
    radial-gradient(circle at 62% 92%, #ffe2a4 0 7%, rgba(255, 210, 140, .55) 12%, transparent 30%),
    linear-gradient(transparent 76%, rgba(92, 70, 88, .55) 76% 82%, rgba(76, 58, 74, .7) 82%),
    linear-gradient(#7d6b8e 0, #b88497 34%, #e19b7c 62%, #f3c48a 100%);
  box-shadow: 0 7px 15px rgba(59, 42, 27, .19), inset 0 0 0 3px #8c765e;
}

/* 窓の桟 */
.room__window::before { position: absolute; top: 0; bottom: 0; left: 50%; width: 5px; content: ""; background: #f2eadb; transform: translateX(-50%); }
.room__window::after { position: absolute; top: 48%; right: 0; left: 0; height: 5px; content: ""; background: #f2eadb; }

.room__curtain {
  position: absolute;
  z-index: 1;
  top: -4px;
  bottom: -4px;
  width: 34%;
  background: repeating-linear-gradient(90deg, #8ea488 0 14px, #7b9477 14px 26px);
  box-shadow: 0 4px 8px rgba(37, 49, 36, .22);
  transform-origin: top center;
  animation: petter-curtain 8s ease-in-out infinite alternate;
}

.room__curtain--left { left: -10%; border-radius: 0 0 60% 0; }
.room__curtain--right { right: -10%; border-radius: 0 0 0 60%; animation-delay: -4s; }

.room__frame {
  position: absolute;
  top: 64px;
  left: 35%;
  width: 20%;
  padding: 7px;
  border: 4px solid #563d28;
  background: #8c6845;
  box-shadow: 0 12px 24px rgba(61, 42, 25, .25), inset 0 0 0 2px #c79c69;
  transform: rotate(.8deg);
}

.room__frame img { border: 4px solid #f4eddf; aspect-ratio: 1; object-fit: cover; }

/* 窓の下の棚。棚の脚の先（絵の下の端）は床の線より 30px 手前に乗る */
.room__cabinet {
  position: absolute;
  z-index: 1;
  bottom: calc(var(--floor-h) - 30px);
  left: 1%;
  width: 36%;
  height: auto;
  overflow: visible;
  filter: drop-shadow(0 8px 6px rgba(70, 48, 26, .2));
}

.room__glow { animation: petter-lamp 6s ease-in-out infinite alternate; }

.room__rug {
  position: absolute;
  bottom: 52px;
  left: 30%;
  width: 70%;
  height: 104px;
  border: 5px solid rgba(240, 226, 196, .7);
  border-radius: 50%;
  background: repeating-radial-gradient(ellipse, #9bab91 0 14px, #8a9b80 14px 26px);
  box-shadow: 0 8px 12px rgba(58, 44, 29, .16);
}

/* ペットのベッド（丸いクッション）。棚の手前の床に置く */
.room__bed {
  position: absolute;
  z-index: 2;
  bottom: 26px;
  left: 4%;
  width: 156px;
  height: 60px;
  border: 8px solid #718b6e;
  border-radius: 50%;
  background: #9eb29a;
  box-shadow: 0 9px 12px rgba(63, 49, 34, .23), inset 0 9px 0 rgba(255, 255, 255, .18);
}

.room__bed i { position: absolute; inset: 7px 20px; border-radius: 50%; background: #c0c9ad; box-shadow: inset 0 -6px rgba(93, 110, 84, .18); }

/* 写真の人。いちばん大きいアバターの靴の底が、床の線より 64px 手前に来る */
.room__people {
  position: absolute;
  z-index: 3;
  right: 2%;
  bottom: calc(var(--floor-h) - 64px);
  width: auto;
  height: 470px;
  aspect-ratio: 1152 / 1400;
}

.room__people img { position: relative; z-index: 1; width: 100%; height: 100%; }

/* 足元のやわらかい影（大きいアバターと、少し奥に立つペット） */
.room__people::before,
.room__people::after {
  position: absolute;
  content: "";
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(66, 42, 20, .42), rgba(66, 42, 20, .16) 60%, transparent);
}

.room__people::before { bottom: -14px; left: 26%; width: 44%; height: 30px; }
.room__people::after { bottom: 10%; left: 8%; width: 34%; height: 24px; }

/* ----- 中身 ----- */

.petter-content { width: min(calc(100% - 32px), 1080px); margin-inline: auto; }

/* 紹介: 文の横に、膝に抱いて座る写真（丸い敷物の上に座る） */
.petter-intro { display: grid; align-items: center; gap: 32px; padding: 72px 0 16px; font-size: clamp(1rem, 2vw, 1.15rem); }
.petter-intro p { max-width: none; margin: 0; }
.petter-intro p + p { margin-top: 14px; }
.petter-intro__text p:first-child { font-size: 1.15em; font-weight: 700; }

.petter-intro__photo { position: relative; width: min(100%, 380px); margin-inline: auto; padding-bottom: 6px; }
.petter-intro__photo img { position: relative; z-index: 1; }

.petter-intro__photo::before {
  position: absolute;
  bottom: 0;
  left: 4%;
  width: 92%;
  height: 34%;
  border: 4px solid rgba(255, 249, 236, .75);
  border-radius: 50%;
  content: "";
  background: repeating-radial-gradient(ellipse, #d9c4a0 0 12px, #ccb48c 12px 22px);
  box-shadow: 0 10px 18px rgba(73, 55, 34, .18);
}

.petter-section { padding-top: 80px; }
.petter-section h2 { position: relative; margin-bottom: 34px; color: var(--ai); font-size: clamp(1.7rem, 4vw, 2.3rem); }
.petter-section h2::after { display: block; width: 58px; height: 4px; margin-top: 9px; border-radius: 2px; content: ""; background: var(--midori); }

/* 機能のカード: 壁に留めたメモ（紙の地・角を少し丸く・やわらかい影・上にマスキングテープ） */
.petter-features { display: grid; gap: 22px; }

.petter-feature {
  position: relative;
  min-width: 0;
  padding: 28px 22px 24px;
  border: 1px solid #cdbfa5;
  border-radius: 10px 14px 9px 12px;
  background: var(--kami);
  box-shadow: 0 8px 18px rgba(73, 55, 34, .12);
}

.petter-feature::before { position: absolute; top: -8px; left: 50%; width: 46px; height: 16px; content: ""; background: rgba(125, 154, 120, .55); transform: translateX(-50%) rotate(-2deg); }
.petter-feature h3 { color: var(--ai); font-size: 1.1rem; line-height: 1.5; }
.petter-feature p { margin: 10px 0 0; font-size: 1rem; }

/* 「自分の足で歩く」: 廊下の壁と床の絵の上を、写真の 2 人が歩く */
.petter-feature--walk { display: flex; flex-direction: column; padding-top: 18px; }
.petter-feature--walk h3 { font-size: 1.3rem; }

.walk-scene {
  display: flex;
  flex: 1 0 auto;
  align-items: flex-end;
  margin: 0 -8px 20px;
  padding: 26px 18px 12px;
  border-radius: 6px;
  background:
    linear-gradient(transparent calc(100% - 64px), #f3ecdd calc(100% - 64px) calc(100% - 61px), var(--habaki) calc(100% - 61px) calc(100% - 52px), transparent calc(100% - 52px)),
    linear-gradient(transparent calc(100% - 52px), var(--yuka) calc(100% - 52px)),
    radial-gradient(ellipse 60% 70% at 50% 30%, rgba(240, 212, 154, .35), transparent 70%),
    linear-gradient(#ece4d2, #ddd0b8);
  box-shadow: inset 0 0 0 1px rgba(120, 90, 60, .12);
}

.walk-scene__people { position: relative; width: 100%; }
.walk-scene__people img { position: relative; z-index: 1; }

.walk-scene__people::before,
.walk-scene__people::after {
  position: absolute;
  bottom: 2%;
  content: "";
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(66, 42, 20, .4), rgba(66, 42, 20, .14) 60%, transparent);
}

.walk-scene__people::before { left: 5%; width: 20%; height: 22px; }
.walk-scene__people::after { left: 74%; width: 24%; height: 24px; }

.petter-howto ol { display: grid; margin: 0; padding: 0; list-style: none; counter-reset: steps; gap: 18px; }
.petter-howto li { position: relative; min-width: 0; margin: 0; padding: 72px 22px 26px; border-top: 4px solid var(--midori); border-radius: 6px; background: rgba(249, 244, 231, .78); box-shadow: 0 7px 16px rgba(73, 55, 34, .1); counter-increment: steps; }
.petter-howto li::before { position: absolute; top: 8px; left: 20px; color: #4a654b; content: counter(steps); font-family: "Dela Gothic One", sans-serif; font-size: 2.3rem; line-height: 1.2; }

.petter-notes { display: grid; gap: 0 30px; }
.petter-list { min-width: 0; }
.petter-list ul { margin: 0; padding: 26px 26px 26px 46px; border-radius: 8px; background: rgba(249, 244, 231, .78); box-shadow: 0 7px 16px rgba(73, 55, 34, .1); }
.petter-list li::marker { color: #4a654b; }
.petter-list li + li { margin-top: 12px; }

.petter-back { display: inline-flex; min-height: 48px; align-items: center; margin-top: 74px; padding: 10px 20px; border: 2px solid #304a34; border-radius: 5px; color: #263b28; font-weight: 700; text-decoration: none; }
.petter-back:hover { color: #fff; background: #304a34; }
.petter-page footer { padding-top: 78px; color: var(--ai); }

@keyframes petter-lamp { from { opacity: .7; } to { opacity: 1; } }
@keyframes petter-curtain { from { transform: skewX(0); } to { transform: skewX(1.6deg) translateX(2px); } }

@media (min-width: 768px) {
  .petter-intro { grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); gap: 44px; }
  .petter-features { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .petter-feature--walk,
  .petter-feature--wide { grid-column: span 2; }
  .petter-howto ol { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 900px) {
  .petter-hero__inner { grid-template-columns: minmax(300px, .75fr) minmax(0, 1.45fr); gap: 32px; }
  .petter-hero__copy { align-self: center; padding-bottom: var(--floor-h); }
  .room { align-self: end; }
  .petter-notes { grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; }
}

/* パソコン: 4 列 × 2 段。歩く写真のカードは 2 列 × 2 段、最後のカードは 2 列 */
@media (min-width: 1024px) {
  .petter-features { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .petter-feature--walk { grid-row: span 2; }
}

@media (max-width: 899px) {
  .petter-hero__inner { gap: 28px; }
  .room { height: 560px; }
  .room__people { height: 430px; }
}

/* スマホ: 文の下に部屋。人の高さは画面の 1/3 ほど（300px） */
@media (max-width: 560px) {
  .petter-page { --floor-h: 126px; }
  .petter-hero__inner { gap: 22px; padding-top: 34px; }
  .petter-cta { margin-top: 22px; }
  .room { height: 410px; }
  .room__window { top: 10px; width: 46%; height: 140px; border-width: 7px; }
  .room__frame { display: none; }
  .room__cabinet { bottom: calc(var(--floor-h) - 22px); left: 0; width: 46%; }
  .room__rug { bottom: 28px; left: 18%; width: 82%; height: 72px; }
  .room__bed { bottom: 12px; left: 0; width: 112px; height: 44px; border-width: 6px; }
  .room__bed i { inset: 5px 14px; }
  .room__people { right: -2%; bottom: calc(var(--floor-h) - 46px); height: 300px; }
  .petter-section { padding-top: 64px; }
  .petter-intro { padding-top: 56px; }
  .walk-scene { margin-inline: -10px; padding: 18px 10px 8px; }
}

@media (prefers-reduced-motion: reduce) {
  .room__curtain,
  .room__glow { animation: none; }
}