/* =========================================================
   うむいの浜 ｜ UMUI no HAMA  -  Landing Page
   Original implementation. Tiffany blue cinematic style.
   ========================================================= */

/* ---------- Design tokens ---------- */
:root{
  --tiffany:      #0ABAB5;
  --tiffany-deep: #0A8F8C;
  --tiffany-dark: #0B6B69;
  --ink:          #143138;
  --ink-soft:     #3a565c;
  --sand:         #f7f3ec;
  --sand-warm:    #efe7da;
  --white:        #ffffff;
  --glass:        rgba(255,255,255,.14);

  --serif-jp: "Shippori Mincho", "Noto Serif JP", "Hiragino Mincho ProN", serif;
  --sans-jp:  "Zen Kaku Gothic New", "Noto Sans JP", "Hiragino Sans", sans-serif;
  --serif-en: "Cormorant Garamond", "Times New Roman", serif;

  --maxw: 1180px;
  --ease: cubic-bezier(.16,.84,.44,1);
}

/* ---------- Reset ---------- */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--sans-jp);
  color:var(--ink);
  background:var(--sand);
  line-height:1.9;
  font-size:16px;
  letter-spacing:.04em;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}

/* ---------- Loader ---------- */
.loader{
  position:fixed;inset:0;z-index:2000;
  background:var(--tiffany);
  display:flex;align-items:center;justify-content:center;
  transition:opacity 1.8s var(--ease),visibility 1.8s;
}
.loader.is-hidden{opacity:0;visibility:hidden}
.loader__mark{width:140px;height:auto;animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:.35;transform:scale(.94)}50%{opacity:1;transform:scale(1)}}

/* ---------- Header ---------- */
.header{
  position:fixed;top:0;left:0;width:100%;z-index:1000;
  display:flex;align-items:center;justify-content:space-between;
  padding:20px clamp(18px,4vw,44px);
  transition:background .5s var(--ease),padding .5s var(--ease),box-shadow .5s;
}
.header::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(8,40,44,.45),rgba(8,40,44,0));
  opacity:1;transition:opacity .5s;
}
.header.is-solid{background:rgba(10,143,140,.92);padding:12px clamp(18px,4vw,44px);box-shadow:0 6px 24px rgba(0,0,0,.12)}
.header.is-solid::before{opacity:0}
.header__logo img{height:42px;width:auto;transition:height .5s var(--ease)}
.header.is-solid .header__logo img{height:34px}

.header__right{display:flex;align-items:center;gap:clamp(14px,2.5vw,30px)}
.nav{display:flex;gap:clamp(16px,2.4vw,32px)}
.nav a{
  color:#fff;font-size:13px;letter-spacing:.14em;position:relative;padding:4px 0;
  font-weight:500;
}
.nav a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:#fff;transition:width .4s var(--ease);
}
.nav a:hover::after{width:100%}

.lang{display:flex;align-items:center;gap:6px;font-size:12px;color:#fff;letter-spacing:.1em}
.lang button{color:rgba(255,255,255,.55);font-weight:600;transition:color .3s;padding:2px}
.lang button.is-active{color:#fff}
.lang span{opacity:.5}

/* hamburger */
.burger{display:none;flex-direction:column;gap:5px;width:30px;height:22px;justify-content:center;z-index:1100}
.burger span{display:block;height:2px;width:100%;background:#fff;transition:transform .4s var(--ease),opacity .3s}
.is-menu-open .burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.is-menu-open .burger span:nth-child(2){opacity:0}
.is-menu-open .burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;height:100svh;min-height:560px;width:100%;overflow:hidden;background:#0a4d4b}
.hero__bg{
  position:absolute;inset:0;
  background:center/cover no-repeat;
  filter:blur(26px) brightness(.7) saturate(1.1);
  transform:scale(1.25);
}
.hero__video{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  height:100%;width:auto;max-width:none;object-fit:cover;
}
.hero__scrim{position:absolute;inset:0;background:radial-gradient(ellipse at center,transparent 55%,rgba(8,40,44,.35))}
.hero__cue{
  position:absolute;left:50%;bottom:26px;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:8px;color:#fff;z-index:3;
}
.hero__cue span{font-family:var(--serif-en);font-size:11px;letter-spacing:.3em;opacity:.85}
.hero__cue i{display:block;width:1px;height:46px;background:linear-gradient(#fff,rgba(255,255,255,0));animation:cue 2s ease-in-out infinite}
@keyframes cue{0%{transform:scaleY(0);transform-origin:top}40%{transform:scaleY(1);transform-origin:top}60%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ---------- Tagline strip ---------- */
.strip{
  background:var(--tiffany);color:#fff;text-align:center;
  padding:26px 20px;font-family:var(--serif-jp);letter-spacing:.18em;
  font-size:clamp(15px,2.4vw,20px);
}
.strip small{display:block;font-family:var(--serif-en);letter-spacing:.3em;font-size:11px;opacity:.8;margin-top:8px;font-style:italic}

/* ---------- Section base ---------- */
.section{padding:clamp(72px,11vw,140px) clamp(20px,5vw,40px)}
.wrap{max-width:var(--maxw);margin:0 auto}
.eyebrow{
  font-family:var(--serif-en);font-style:italic;letter-spacing:.32em;
  font-size:13px;color:var(--tiffany-deep);text-transform:uppercase;display:block;margin-bottom:18px;
}
.section--center{text-align:center}

/* ---------- Story (cinematic) ---------- */
.story{position:relative;color:#fff;text-align:center;overflow:hidden;background:#0a4d4b}
.story__bg{position:absolute;inset:0;background:center/cover no-repeat;filter:brightness(.46) saturate(1.05);transform:scale(1.05)}
.story__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,77,75,.4),rgba(8,40,44,.7))}
.story__inner{position:relative;z-index:2;max-width:820px;margin:0 auto;padding:clamp(90px,16vw,180px) clamp(20px,5vw,40px)}
.story__line{
  font-family:var(--serif-jp);
  font-size:clamp(19px,3.6vw,32px);
  line-height:2.2;font-weight:500;letter-spacing:.08em;
  margin:0 0 .4em;text-shadow:0 2px 30px rgba(0,0,0,.3);
}
.story__line.is-accent{color:#bdf3f0}
.story__umui{
  display:inline-block;margin-top:24px;font-family:var(--serif-en);font-style:italic;
  letter-spacing:.3em;font-size:13px;color:#9fe7e3;
}

/* ---------- Concept (facts) ---------- */
.concept .wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(34px,6vw,72px);align-items:center}
.concept__title{font-family:var(--serif-jp);font-size:clamp(26px,4.4vw,42px);line-height:1.5;font-weight:600;margin-bottom:26px;letter-spacing:.06em}
.concept__title .accent{color:var(--tiffany-deep)}
.concept__text{color:var(--ink-soft);font-size:15.5px;margin-bottom:18px}
.concept__media{position:relative}
.concept__media img{width:100%;border-radius:4px;box-shadow:0 30px 60px -24px rgba(11,107,105,.5);aspect-ratio:4/3;object-fit:cover}
.concept__media figcaption{
  position:absolute;left:18px;bottom:16px;color:#fff;font-family:var(--serif-en);
  font-style:italic;font-size:12px;letter-spacing:.2em;text-shadow:0 2px 10px rgba(0,0,0,.5)
}
.facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.facts li{
  border:1px solid rgba(10,143,140,.4);color:var(--tiffany-deep);
  border-radius:30px;padding:7px 16px;font-size:12.5px;letter-spacing:.08em;background:rgba(10,186,181,.06)
}

/* ---------- Scenes ---------- */
.scenes{background:var(--white);padding:clamp(60px,9vw,110px) 0 clamp(20px,4vw,40px)}
.scenes__head{text-align:center;padding:0 20px clamp(36px,6vw,64px)}
.scenes__head h2{font-family:var(--serif-jp);font-size:clamp(24px,4vw,38px);font-weight:600;letter-spacing:.06em;line-height:1.5}
.scenes__head p{color:var(--ink-soft);font-size:15px;margin-top:16px}

.scene{position:relative;min-height:78vh;display:flex;align-items:center;overflow:hidden}
.scene__bg{position:absolute;inset:0;background:center/cover no-repeat;will-change:transform}
.scene__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,40,44,.62),rgba(8,40,44,.15) 60%,transparent)}
.scene--right .scene__bg::after{background:linear-gradient(270deg,rgba(8,40,44,.62),rgba(8,40,44,.15) 60%,transparent)}
.scene__content{position:relative;z-index:2;max-width:var(--maxw);width:100%;margin:0 auto;padding:0 clamp(24px,6vw,60px);color:#fff}
.scene--right .scene__content{text-align:right}
.scene__box{max-width:460px}
.scene--right .scene__box{margin-left:auto}
.scene__no{font-family:var(--serif-en);font-style:italic;font-size:14px;letter-spacing:.3em;opacity:.8;display:block;margin-bottom:14px}
.scene__title{font-family:var(--serif-jp);font-size:clamp(24px,4vw,40px);font-weight:600;line-height:1.45;letter-spacing:.05em;margin-bottom:16px;text-shadow:0 2px 24px rgba(0,0,0,.35)}
.scene__copy{font-size:15px;line-height:2;color:rgba(255,255,255,.92);text-shadow:0 1px 14px rgba(0,0,0,.3)}

/* ---------- Gallery ---------- */
.gallery .scenes__head{padding-bottom:clamp(30px,5vw,50px)}
.grid{
  max-width:1280px;margin:0 auto;padding:0 clamp(14px,3vw,24px);
  display:grid;grid-template-columns:repeat(12,1fr);gap:12px;grid-auto-flow:dense;
}
.grid figure{position:relative;overflow:hidden;border-radius:3px;background:#dfe9e8;cursor:pointer}
.grid img{width:100%;height:100%;object-fit:cover;transition:transform .9s var(--ease)}
.grid figure:hover img{transform:scale(1.06)}
.grid figure::after{content:"";position:absolute;inset:0;background:rgba(10,143,140,0);transition:background .4s}
.grid figure:hover::after{background:rgba(10,143,140,.12)}
.g-a{grid-column:span 7;aspect-ratio:16/10}
.g-b{grid-column:span 5;aspect-ratio:16/10}
.g-c{grid-column:span 4;aspect-ratio:3/4}
.g-d{grid-column:span 4;aspect-ratio:3/4}
.g-e{grid-column:span 4;aspect-ratio:3/4}
.g-f{grid-column:span 6;aspect-ratio:16/10}
.g-g{grid-column:span 6;aspect-ratio:16/10}

/* lightbox */
.lightbox{position:fixed;inset:0;z-index:1500;background:rgba(6,30,32,.92);display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:opacity .35s}
.lightbox.is-open{opacity:1;visibility:visible}
.lightbox img{max-width:92vw;max-height:88vh;border-radius:4px;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.lightbox__close{position:absolute;top:22px;right:26px;color:#fff;font-size:30px;line-height:1;opacity:.8}
.lightbox__close:hover{opacity:1}

/* ---------- Access ---------- */
.access{background:var(--sand-warm)}
.access .wrap{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,60px);align-items:stretch}
.access__title{font-family:var(--serif-jp);font-size:clamp(24px,4vw,36px);font-weight:600;margin-bottom:10px;letter-spacing:.06em}
.access__note{
  display:inline-block;background:var(--tiffany);color:#fff;border-radius:30px;
  padding:6px 16px;font-size:12.5px;letter-spacing:.08em;margin:6px 0 24px
}
.access dl{display:grid;grid-template-columns:auto 1fr;gap:6px 18px;margin-bottom:24px}
.access dt{color:var(--tiffany-deep);font-size:13px;font-weight:600;letter-spacing:.08em;padding-top:2px;white-space:nowrap}
.access dd{font-size:15px;color:var(--ink)}
.routes{margin-top:6px}
.routes li{display:flex;align-items:baseline;gap:12px;padding:11px 0;border-bottom:1px dashed rgba(10,107,105,.25);font-size:15px}
.routes li b{color:var(--tiffany-deep);font-family:var(--serif-en);font-style:italic;font-size:18px;min-width:64px}
.access__map{position:relative;min-height:320px;border-radius:4px;overflow:hidden;box-shadow:0 24px 50px -22px rgba(11,107,105,.5)}
.access__map iframe{position:absolute;inset:0;width:100%;height:100%;border:0;filter:grayscale(.1)}
.btn{
  display:inline-flex;align-items:center;gap:10px;background:var(--tiffany);color:#fff;
  padding:15px 30px;border-radius:40px;font-size:14px;letter-spacing:.1em;font-weight:600;
  transition:transform .35s var(--ease),box-shadow .35s,background .35s;margin-top:8px;
  box-shadow:0 14px 30px -10px rgba(10,143,140,.7)
}
.btn:hover{transform:translateY(-3px);background:var(--tiffany-deep);box-shadow:0 20px 40px -12px rgba(10,143,140,.8)}
.btn svg{width:16px;height:16px}

/* ---------- CTA ---------- */
.cta{position:relative;text-align:center;color:#fff;overflow:hidden}
.cta__bg{position:absolute;inset:0;background:center/cover no-repeat;filter:brightness(.55) saturate(1.1);transform:scale(1.05)}
.cta__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,77,75,.5),rgba(8,40,44,.7))}
.cta__inner{position:relative;z-index:2;padding:clamp(90px,15vw,170px) 20px}
.cta__title{font-family:var(--serif-jp);font-size:clamp(26px,5vw,46px);font-weight:600;line-height:1.5;letter-spacing:.08em;margin-bottom:14px;text-shadow:0 2px 30px rgba(0,0,0,.35)}
.cta__sub{font-family:var(--serif-en);font-style:italic;letter-spacing:.26em;font-size:13px;opacity:.85;margin-bottom:34px}
.cta .btn{background:#fff;color:var(--tiffany-deep)}
.cta .btn:hover{background:#eafdfb}

/* ---------- Footer ---------- */
.footer{background:var(--tiffany-deep);color:#fff;text-align:center;padding:clamp(46px,7vw,68px) 20px 30px}
.footer__logo{height:64px;width:auto;margin:0 auto 22px;opacity:.95}
.footer__addr{font-size:13px;letter-spacing:.06em;color:rgba(255,255,255,.85);line-height:1.9}
.footer__small{font-family:var(--serif-en);font-style:italic;letter-spacing:.2em;font-size:11px;color:rgba(255,255,255,.6);margin-top:22px}

/* ---------- Reveal animations ---------- */
.reveal{opacity:0;transform:translateY(38px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
.reveal-d1{transition-delay:.12s}
.reveal-d2{transition-delay:.24s}
.reveal-d3{transition-delay:.36s}
.reveal-d4{transition-delay:.48s}

/* ---------- Responsive ---------- */
@media (max-width:880px){
  .concept .wrap{grid-template-columns:1fr}
  .concept__media{order:-1}
  .access .wrap{grid-template-columns:1fr}
  .access__map{min-height:280px}
}
@media (max-width:720px){
  .nav{
    position:fixed;inset:0;background:rgba(10,143,140,.97);
    flex-direction:column;align-items:center;justify-content:center;gap:26px;
    transform:translateX(100%);transition:transform .5s var(--ease);
  }
  .is-menu-open .nav{transform:none}
  .nav a{font-size:18px;letter-spacing:.18em}
  .burger{display:flex}
  /* mobile hero: vertical video fills screen */
  .hero__bg{display:none}
  .hero__video{height:100%;width:100%;object-fit:cover}
  .grid{grid-template-columns:repeat(2,1fr)}
  .g-a,.g-b,.g-c,.g-d,.g-e,.g-f,.g-g{grid-column:span 2;aspect-ratio:4/3}
  .g-c,.g-d,.g-e{aspect-ratio:3/4}
  .scene{min-height:68vh}
  .scene__content,.scene--right .scene__content{text-align:left}
  .scene--right .scene__box{margin-left:0}
  .scene__bg::after,.scene--right .scene__bg::after{background:linear-gradient(180deg,rgba(8,40,44,.3),rgba(8,40,44,.65))}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .hero__cue i{animation:none}
}

/* ---------- Screen-reader-only (SEO h1) ---------- */
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- FAQ ---------- */
.faq{background:var(--sand)}
.faq .wrap{max-width:860px}
.faq__list{margin-top:6px}
.faq__item{border-bottom:1px solid rgba(10,107,105,.18);padding:22px 4px}
.faq__q{display:flex;gap:14px;align-items:flex-start;font-family:var(--serif-jp);font-weight:600;font-size:clamp(16px,2.4vw,19px);color:var(--ink);letter-spacing:.04em;line-height:1.6}
.faq__q::before{content:"Q";font-family:var(--serif-en);font-style:italic;color:var(--tiffany-deep);font-size:21px;line-height:1.3;flex:none}
.faq__a{display:flex;gap:14px;align-items:flex-start;margin-top:12px;color:var(--ink-soft);font-size:15px;line-height:2}
.faq__a::before{content:"A";font-family:var(--serif-en);font-style:italic;color:var(--tiffany);font-size:21px;line-height:1.3;flex:none}