/* ================================
   新宿プリンスホテル×ディスクユニオン
   DJ Night Record Stay collaboration LP
   ================================ */

:root {
  --c-accent: #C8452C;
  --c-text: #3B2B20;
  --c-cream: #EFEADD;
  --c-card: #FBF6EA;
  --c-yellow: #FFC942;
  --c-showa: #D96C2C;
  --c-heisei: #2E7E8C;
  --c-white: #FFFFFF;
  --font-jp: "Sawarabi Gothic", "Hiragino Sans", sans-serif;
  --font-en: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

/* OverlayScrollbars custom theme (brand accent) */
.os-theme-brand {
  box-sizing: border-box;
  --os-size: 10px;
  --os-padding-perpendicular: 2px;
  --os-padding-axis: 2px;
  --os-track-border-radius: 10px;
  --os-handle-interactive-area-offset: 4px;
  --os-handle-border-radius: 10px;
  --os-track-bg: rgba(59, 43, 32, .08);
  --os-handle-bg: var(--c-accent);
  --os-handle-bg-hover: #a83a23;
  --os-handle-bg-active: #8f311d;
}
body {
  margin: 0;
  font-family: var(--font-jp);
  color: var(--c-text);
  background: var(--c-yellow);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, p, ul { margin: 0; padding: 0; }
li { list-style: none; }

.sec__inner,
.sec--intro,
.sec__content-inner,
.dj-grid,
.about-box,
.footer__top {
  max-width: 1080px;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- heading (shared) ---------- */
.heading { text-align: center; margin-bottom: 32px; }
.heading__label {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.4px;
  color: var(--c-accent);
  margin-bottom: 8px;
}
.heading--white .heading__label,
.heading__label--accent { color: var(--c-accent); }

.sec--stay .heading__label {
    color: white;
}
.heading__title {
  font-size: 28px;
  font-weight: 400;
  letter-spacing: 2px;
  color: var(--c-text);
  margin-bottom: 14px;
}
.heading--white .heading__title,
.heading__title--white { color: var(--c-white); }
.heading__bar {
  display: inline-block;
  width: 48px;
  height: 5px;
  border-radius: 3px;
  background: var(--c-accent);
}

/* ---------- intro curtain (plays once on load) ---------- */
.intro-curtain {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #17130f;
  pointer-events: none;
  animation: curtain-out .6s cubic-bezier(.65,0,.35,1) both;
  animation-delay: .45s;
}
.intro-curtain__disc {
  position: relative;
  width: 148px;
  height: 148px;
  --note-fly-y: -70px;
  animation: curtain-disc-spin 1.05s cubic-bezier(.16,1,.3,1) both;
}
.intro-curtain__ring {
  position: absolute;
  top: 50%;
  left: 50%;
  translate: -50% -50%;
  border-radius: 50%;
}
.intro-curtain__ring--1 { width: 100%; height: 100%; background: #1F1F1F; box-shadow: 0 2px 10px rgba(0,0,0,.4); }
.intro-curtain__ring--2 { width: 82%; height: 82%; border: 1px solid rgba(255,255,255,.14); }
.intro-curtain__ring--3 { width: 64%; height: 64%; border: 1px solid rgba(255,255,255,.14); }
.intro-curtain__ring--4 { width: 46%; height: 46%; border: 1px solid rgba(255,255,255,.14); background: #111; }
.intro-curtain__core {
  position: absolute;
  top: 50%;
  left: 50%;
  translate: -50% -50%;
  width: 26%;
  height: 26%;
  border-radius: 50%;
  background: var(--c-accent);
}
@keyframes curtain-disc-spin {
  from { rotate: 0deg; scale: .8; opacity: 0; }
  15%  { opacity: 1; }
  to   { rotate: 300deg; scale: 1; opacity: 1; }
}
.intro-curtain__note {
  position: absolute;
  top: 38%;
  left: 50%;
  font-size: 28px;
  line-height: 1;
  color: var(--c-cream);
  opacity: 0;
  pointer-events: none;
}
.intro-curtain__note--1 { --nx: -36px; --nr: -16deg; animation: note-fly .6s ease-out .1s both; }
.intro-curtain__note--2 { --nx: 0px;   --nr: 10deg;  animation: note-fly .6s ease-out .25s both; }
.intro-curtain__note--3 { --nx: 36px;  --nr: -8deg;  animation: note-fly .6s ease-out .4s both; }
@keyframes curtain-out {
  from { opacity: 1; visibility: visible; }
  99%  { opacity: 0; visibility: visible; }
  to   { opacity: 0; visibility: hidden; }
}
@media (prefers-reduced-motion: reduce) {
  .intro-curtain { display: none; }
}

/* ---------- hero ---------- */
.hero { line-height: 0; background: #4a4038; overflow: hidden; }
.hero__img { width: 100%; height: auto; animation: hero-zoom 1.8s cubic-bezier(.16,1,.3,1) both; }
@keyframes hero-zoom {
  from { transform: scale(1.05); }
  to { transform: scale(1); }
}

/* ---------- sec_intro ---------- */
.sec--intro {
  background: var(--c-cream);
  padding: 48px 24px;
  text-align: center;
  max-width: 100%;
}
.intro__text p { font-size: 15px; letter-spacing: 0.4px; margin-bottom: 4px; }
.intro__text p:last-child { margin-bottom: 0; }

/* ---------- stay plan / cafe shared band+content pattern ---------- */
.sec__band {
  background-size: cover;
  background-position: center bottom;
  background-color: #211106;
  padding: 56px 0 40px;
}
.sec--stay .sec__band { position: relative; }
.sec--stay .sec__band::before,
.sec--cafe .sec__band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(33, 17, 6, .6);
}
.sec--stay .sec__band,
.sec--cafe .sec__band { position: relative; }
.sec__band > * { position: relative; z-index: 1; }

.sec__lead {margin: 0 auto;text-align: center;color: var(--c-white);padding-inline: 24px;}
.sec__lead-main { font-size: 17px; letter-spacing: 0.6px; margin-bottom: 12px; }
.sec__lead p:not(.sec__lead-main) { font-size: 14px; letter-spacing: 0.3px; }

.sec__content { padding: 40px 20px 56px; }
.sec__content-inner { display: flex; flex-direction: column; gap: 24px; }
.sec__content--yellow { background: var(--c-yellow); }
.sec__content--cream { background: var(--c-cream); }

/* stay_details / cafe details card */
.card.stay-details {
  background: var(--c-white);
  border: 2px solid var(--c-text);
  border-radius: 16px;
  box-shadow: 5px 5px 0 0 var(--c-text);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.stay-details .row { display: flex; align-items: flex-start; gap: 16px; }
.stay-details .label {
  flex: 0 0 auto;
  min-width: 84px;
  background: var(--c-text);
  color: var(--c-card);
  font-size: 14px;
  letter-spacing: 0.3px;
  text-align: center;
  border-radius: 2px;
  padding: 8px 6px;
}
.stay-details .row p { font-size: 14px; letter-spacing: 0.3px; padding-top: 6px; }

/* room card */
.card.room-card {
  background: var(--c-white);
  border: 2px solid var(--c-text);
  border-radius: 16px;
  box-shadow: 5px 5px 0 0 var(--c-text);
  overflow: hidden;
}
.room-card__img { width: 100%; height: auto; aspect-ratio: 1080 / 560; overflow: hidden; }
.room-card__body { padding: 24px 20px; display: flex; flex-direction: column; gap: 20px; }
.room-card__body hr { border: none; border-top: 1px solid #e3ddcc; margin: 0; }
.room-type__head { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; flex-wrap: wrap; }
.chip {
  display: inline-block;
  padding: 6px 14px;
  color: var(--c-card);
  font-size: 14px;
  letter-spacing: 0.6px;
  font-weight: 700;
}
.chip--showa { background: var(--c-showa); }
.chip--heisei { background: var(--c-heisei); }
.room-type__era { font-size: 14px; letter-spacing: 0.4px; }
.room-type--showa .room-type__era,
.room-type:has(.chip--showa) .room-type__era { color: var(--c-showa); }
.room-type:has(.chip--heisei) .room-type__era { color: var(--c-heisei); }
.room-type h3 { font-size: 22px; letter-spacing: 0.8px; margin-bottom: 6px; }
.room-type p { font-size: 14px; letter-spacing: 0.3px; }

/* CTA button */
.cta-wrap { text-align: center; padding: 8px 0; }
.cta {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  background: var(--c-accent);
  color: var(--c-card);
  text-decoration: none;
  font-size: 16px;
  letter-spacing: 0.6px;
  padding: 18px 32px;
  border-radius: 999px;
  box-shadow: 5px 5px 0 0 var(--c-text);
  transition: transform .15s ease, box-shadow .15s ease;
}
@media (hover: hover) {
  .cta:hover { transform: translate(-2px, -2px); box-shadow: 7px 7px 0 0 var(--c-text); }
}
.cta:active { transform: translate(3px, 3px); box-shadow: 2px 2px 0 0 var(--c-text); }
.cta__arrow {
  width: 0; height: 0;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-left: 8px solid var(--c-card);
}

.disclaimer { font-size: 12px; letter-spacing: 0.3px; color: var(--c-text); }
.disclaimer p { margin-bottom: 2px; }
.disclaimer a { text-decoration: underline; transition: color .15s ease; }
.disclaimer a:hover { color: var(--c-accent); }

/* cafe menu grid */
.menu-grid { display: flex; flex-direction: column; gap: 16px; }
.menu-card, .menu-photo {
  border-radius: 16px;
  overflow: hidden;
}
.menu-card { background: var(--c-white); }
.menu-card__inner { padding: 28px 24px; }
.menu-card h3 {
  font-size: 20px;
  letter-spacing: 0.8px;
  text-align: center;
  margin-bottom: 40px;
  position: relative;
}
.menu-card h3 .bar {
  display: block;
  width: 48px;
  height: 5px;
  border-radius: 3px;
  background: var(--c-accent);
  margin: 8px auto 0;
}
.menu-list li { font-size: 14px; letter-spacing: 0.3px; margin-bottom: 4px; }
.menu-card p { font-size: 14px; letter-spacing: 0.3px; }
.menu-photo {width: 100%;height: 100%;}

/* ---------- DJ EVENT section ---------- */
.sec--dj { position: relative; overflow: hidden; padding: 56px 0; }
.sec--dj .sec__bg-photo {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: blur(6px) brightness(.55) saturate(1.1);
  transform: scale(1.05);
}
.sec--dj .sec__bg-photo::after { content: ""; }
.sec--dj::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(33, 17, 6, .35);
  border-top: 2px solid var(--c-yellow);
  border-bottom: 2px solid var(--c-yellow);
}
.sec--dj .sec__inner { position: relative; z-index: 1; padding: 0 20px; }
.dj-grid { display: flex; flex-direction: column; gap: 32px; }
.dj-text { color: var(--c-white); }
.dj-text__lead { font-size: 17px; letter-spacing: 0.6px; margin-bottom: 16px; }
.dj-text p:not(.dj-text__lead):not(.note) { font-size: 14px; letter-spacing: 0.3px; margin-bottom: 16px; }
.dj-text .note { font-size: 13px; letter-spacing: 0.3px; opacity: .85; }
.dj-photo { width: 100%; height: auto; aspect-ratio: 560/400; border-radius: 16px; overflow: hidden; }

/* ---------- ABOUT DISKUNION ---------- */
.sec--diskunion {
  position: relative;
  background: var(--c-yellow);
  padding: 80px 0 80px;
  overflow: hidden;
}
.disk-rings {
  position: absolute;
  left: 50%;
  top: 43%;
  transform: translate(-50%,-50%);
  width: 100%;
  aspect-ratio: 1/1;
  pointer-events: none;
}
.disk-ring {
  position: absolute;
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.disk-rings__spin {
  position: absolute;
  inset: 0;
  animation: disk-spin 60s linear infinite;
}
.disk-ring--1 {width: 100%;height: 100%;background: #1F1F1F;}
.disk-ring--2 { width: 86.4%; height: 86.4%; border: 1px solid rgba(255,255,255,.12); }
.disk-ring--3 { width: 70.2%; height: 70.2%; border: 1px solid rgba(255,255,255,.12); }
.disk-ring--4 { width: 56.3%; height: 56.3%; border: 1px solid rgba(255,255,255,.12); }
.disk-ring--5 { width: 38.3%; height: 38.3%; border: 1px solid rgba(255,255,255,.12); background: #111;}
@keyframes disk-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.disk-ring--core {
  width: 31%;
  height: 31%;
  overflow: hidden;
  background: #000;
}
.disk-ring__photo {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: .8;
}
.disk-ring__overlay {
  position: absolute; inset: 0;
  background: radial-gradient(circle, rgba(0,0,0,.55) 0%, rgba(0,0,0,.85) 65%, #000 100%);
}
.disk-ring__logo {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 62%;
}
.sec--diskunion .sec__inner {position: relative;display: flex;flex-direction: column;justify-content: space-between;gap: 100px;z-index: 1;padding: 0 20px;max-width: 100%;}
.about-box {
  background: var(--c-white);
  border: 2px solid var(--c-text);
  border-radius: 16px;
  box-shadow: 5px 5px 0 0 var(--c-text);
  padding: 28px 24px;
  text-align: center;
}
.about-box p { font-size: 14px; letter-spacing: 0.3px; }

/* ---------- footer ---------- */
.footer { background: var(--c-text); text-align: center; }
.footer__top { padding: 40px 24px; display: flex; flex-direction: column; align-items: center; gap: 24px; }
.footer__logo { width: 235px; height: auto; }
.footer__nav { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; }
.footer__nav a { font-size: 14px; letter-spacing: 0.5px; text-decoration: none; color: var(--c-white); transition: opacity .15s ease; }
.footer__nav a:hover { opacity: .7; }
.footer__sep { display: none; width: 1px; height: 16px; background: rgba(255,255,255,.5); }
.footer__copyright {
  background: #FBF6EA;
  color: var(--c-text);
  font-size: 11px;
  letter-spacing: 0.3px;
  padding: 12px 16px;
}

/* ---------- scroll reveal ---------- */
.heading,
.intro__text,
.sec__lead,
.card,
.menu-card,
.menu-photo,
.cta-wrap,
.disclaimer,
.dj-text,
.dj-photo {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s cubic-bezier(.16,1,.3,1), transform .6s cubic-bezier(.16,1,.3,1);
}
.is-visible { opacity: 1; transform: none; }

/* ---------- photo hover-scale + scroll parallax ---------- */
.photo-frame { overflow: hidden; }
.photo-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  scale: 1.08;
  transition: scale .4s cubic-bezier(.16,1,.3,1);
}
@media (hover: hover) {
  .photo-frame:hover .photo-img { scale: 1.16; }
}
@supports (animation-timeline: view()) {
  .photo-img {
    animation: photo-parallax linear both;
    animation-timeline: view();
    animation-range: cover 0% cover 100%;
  }
}
@keyframes photo-parallax {
  from { translate: 0 -4%; }
  to   { translate: 0 4%; }
}

/* ---------- back to top ---------- */
.top-btn {
  position: fixed;
  right: 12px;
  bottom: 12px;
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  background-image:
    radial-gradient(circle, var(--c-accent) 0 21%, transparent 21% 100%),
    radial-gradient(circle, transparent 0 34.2%, rgba(255,255,255,.15) 34.2% 34.8%, transparent 34.8% 100%),
    radial-gradient(circle, transparent 0 52.1%, rgba(255,255,255,.15) 52.1% 52.7%, transparent 52.7% 100%),
    radial-gradient(circle, transparent 0 67.9%, rgba(255,255,255,.15) 67.9% 68.5%, transparent 68.5% 100%),
    radial-gradient(circle, transparent 0 83.7%, rgba(255,255,255,.15) 83.7% 84.3%, transparent 84.3% 100%),
    radial-gradient(circle, #2a2a2a 0%, #111 70%);
  color: var(--c-text);
  -webkit-text-stroke: 1px var(--c-cream);
  paint-order: stroke fill;
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: 0.9px;
  line-height: 1.1em;
  box-shadow: 0 2px 8px rgba(0,0,0,.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .25s, transform .25s, visibility .25s, box-shadow .2s;
  z-index: 40;
}
.top-btn.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.top-btn.is-visible:active { transform: translateY(1px) scale(.97); }
.top-btn span { pointer-events: none; }

.top-btn__notes { position: absolute; inset: 0; pointer-events: none; }
.top-btn__note {
  position: absolute;
  top: 46%;
  left: 50%;
  font-size: 12px;
  line-height: 1;
  color: var(--c-cream);
  opacity: 0;
  pointer-events: none;
}
.top-btn__note:nth-child(1) { --nx: -20px; --nr: -16deg; }
.top-btn__note:nth-child(2) { --nx: 0px; --nr: 8deg; }
.top-btn__note:nth-child(3) { --nx: 20px; --nr: -6deg; }
@media (hover: hover) {
  .top-btn.is-visible:hover .top-btn__note { animation: note-fly 1.1s ease-out infinite; }
  .top-btn.is-visible:hover .top-btn__note:nth-child(1) { animation-delay: 0s; }
  .top-btn.is-visible:hover .top-btn__note:nth-child(2) { animation-delay: .25s; }
  .top-btn.is-visible:hover .top-btn__note:nth-child(3) { animation-delay: .5s; }
}
@keyframes note-fly {
  0%   { opacity: 0; translate: 0 0; rotate: 0deg; scale: .6; }
  20%  { opacity: 1; }
  100% { opacity: 0; translate: var(--nx) var(--note-fly-y, -40px); rotate: var(--nr); scale: 1; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .heading, .intro__text, .sec__lead, .card, .menu-card, .menu-photo,
  .cta-wrap, .disclaimer, .dj-text, .dj-photo,
  .cta, .top-btn, .footer__nav a, .disclaimer a, .photo-img {
    transition: none !important;
  }
  .hero__img, .disk-rings__spin, .photo-img, .top-btn__note {
    animation: none !important;
  }
}

/* =====================================================
   Desktop layout (>=768px) — matches Figma 1080/1920 grid
   ===================================================== */
@media (min-width: 768px) {
.sec--intro { padding: 80px 24px; }
  .heading {margin-bottom: 32px;}
  .heading__label { font-size: 16px; }
  .heading__title {font-size: 40px;letter-spacing: 2.8px;margin-bottom: 0;}
  .intro__text p { font-size: 20px; letter-spacing: 0.8px; }

  .sec__band {padding: 80px 40px 80px;}
  .sec__lead-main { font-size: 20px; }
  .sec__lead p:not(.sec__lead-main) { font-size: 16px; }

  .sec__content { padding: 56px 40px 80px; }
  .sec__content-inner { gap: 40px; }
  .card.stay-details { padding: 40px 48px; border-width: 2px 5px 5px 2px; }
  .stay-details .row { gap: 24px; align-items: center; }
  .stay-details .label { min-width: 110px; height: 40px; display: flex; align-items: center; justify-content: center; font-size: 16px; }
  .stay-details .row p { font-size: 16px; padding-top: 0; }

  .card.room-card { border-width: 2px 5px 5px 2px; }
  .room-card__body { padding: 32px 48px 40px; }
  .room-type h3 { font-size: 32px; }
  .room-type p, .room-type__era { font-size: 16px; }
  .chip { font-size: 20px; padding: 8px 18px; }

  .cta { font-size: 20px; padding: 22px 40px 22px 64px; }

  .disclaimer { font-size: 16px; }

  .menu-grid {display: grid;grid-template-columns: 1fr 5% 1fr;gap: 30px 30px;}
  .menu-card__inner { padding: 40px; }
  .menu-card h3 {font-size: 32px;text-align: center;}
  .menu-card h3 .bar {margin: 8px auto 0;}
  .menu-list li { font-size: 16px; }
  .menu-card p { font-size: 16px; }

  .dj-grid { flex-direction: row; align-items: flex-start; gap: 63px; }
  .dj-text {flex: 1;}
  .dj-text__lead { font-size: 20px; }
  .dj-text p:not(.dj-text__lead):not(.note) { font-size: 16px; }
  .dj-photo {width: 50%;max-width: 560px;flex: 0 0 auto;}

  .sec--diskunion .sec__inner { aspect-ratio: 1920/1200; gap: 0; }
  .disk-rings { top: 50%; transform: translate(-50%, -50%); }
  .about-box { padding: 20px 24px; border-width: 2px 5px 5px 2px; }
  .about-box p { font-size: 16px; }

  .footer__top { justify-content: center; padding: 64px 24px 24px; gap: 32px; }
  .footer__sep { display: inline-block; }
  .footer__copyright { font-size: 16px; }

  .top-btn { right: 16px; bottom: 16px; width: 100px; height: 100px; font-size: 30px; letter-spacing: 1.44px; --note-fly-y: -60px; }
  .top-btn__note { font-size: 18px; }
}

@media (min-width: 825px) {
.min825 { display: none; }
}

@media (min-width: 375px) {
.min375 { display: none; }
}

@media (max-width: 1024px) {
.max1024 { display: none; }
}

/* =====================================================
   Desktop layout (>=1200px) — matches Figma 1080/1920 grid
   ===================================================== */
@media (min-width: 1200px) {
  .sec--diskunion {padding: 80px 0 160px;}
  .about-box { padding: 40px 48px;}
  .footer__top { gap: 48px;}
}