/* ================================================================
   YNEST — Nail Salon  |  Stylesheet
   ================================================================ */

/* ---------- Design Tokens ---------- */
:root {
  --c-bg:        #f7f4f0;
  --c-bg-warm:   #efe9e1;
  --c-bg-card:   #ffffff;
  --c-surface:   #f0ebe6;
  --c-text:      #36322e;
  --c-text-sub:  #8c847a;
  --c-accent:    #b08968;
  --c-accent-h:  #9a7356;
  --c-accent-l:  #d4b89c;
  --c-border:    #e4ddd4;
  --c-white:     #ffffff;

  --ff-display: 'Playfair Display', 'Noto Sans JP', serif;
  --ff-body:    'DM Sans', 'Noto Sans JP', sans-serif;

  --header-h: 72px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;
  --shadow-card: 0 4px 24px rgba(60,50,40,.06);
  --shadow-hover: 0 12px 40px rgba(60,50,40,.1);
  --ease: cubic-bezier(.22,1,.36,1);
}

/* ---------- Reset ---------- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--header-h)}
body{font-family:var(--ff-body);font-weight:300;font-size:15px;line-height:1.9;color:var(--c-text);background:var(--c-bg);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul,ol{list-style:none}
button{font:inherit;cursor:pointer;border:none;background:none}

/* ---------- Utility ---------- */
.container{max-width:1120px;margin:0 auto;padding:0 32px}
.section{padding:120px 0}
.sp-only{display:none}

.label{
  display:block;
  font-family:var(--ff-display);
  font-size:13px;
  font-weight:400;
  letter-spacing:.22em;
  color:var(--c-accent);
  margin-bottom:14px;
}

.heading-lg{
  font-family:var(--ff-body);
  font-weight:500;
  font-size:26px;
  letter-spacing:.06em;
  line-height:1.7;
  margin-bottom:24px;
}

.text-body{
  font-size:14px;
  line-height:2.1;
  color:var(--c-text-sub);
  margin-bottom:16px;
}
.text-body:last-child{margin-bottom:0}

.section-head{text-align:center;margin-bottom:64px}
.section-lead{font-size:14px;line-height:2.1;color:var(--c-text-sub);margin-top:-8px}
.section-lead strong{color:var(--c-accent);font-weight:500}

.link-underline{
  color:var(--c-accent);
  border-bottom:1px solid var(--c-accent-l);
  transition:border-color .3s;
}
.link-underline:hover{border-color:var(--c-accent)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:400;letter-spacing:.1em;
  padding:15px 40px;border-radius:var(--radius-pill);
  transition:all .4s var(--ease);
}
.btn--primary{
  background:var(--c-accent);color:var(--c-white);
}
.btn--primary:hover{
  background:var(--c-accent-h);
  transform:translateY(-2px);
  box-shadow:0 8px 28px rgba(176,137,104,.3);
}
.btn--ghost{
  border:1px solid rgba(255,255,255,.45);
  color:var(--c-white);backdrop-filter:blur(4px);
}
.btn--ghost:hover{
  background:rgba(255,255,255,.12);
  border-color:rgba(255,255,255,.65);
}

/* ================================================================
   Header
   ================================================================ */
.header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:var(--header-h);
  transition:background .4s,box-shadow .4s,backdrop-filter .4s;
}
.header.scrolled{
  background:rgba(247,244,240,.92);
  backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);
  box-shadow:0 1px 0 var(--c-border);
}
.header-inner{
  max-width:1120px;margin:0 auto;padding:0 32px;
  height:100%;display:flex;align-items:center;justify-content:space-between;
}

.language-toggle{
  display:inline-flex;align-items:center;gap:5px;
  margin-left:20px;padding:7px 11px;
  border:1px solid rgba(255,255,255,.4);border-radius:var(--radius-pill);
  color:rgba(255,255,255,.72);font-family:var(--ff-sans);
  font-size:10px;letter-spacing:.1em;line-height:1;
  transition:color .3s,border-color .3s,background .3s;
}
.language-toggle:hover{color:var(--c-white);border-color:rgba(255,255,255,.7)}
.language-toggle-current{color:var(--c-white);font-weight:600}
.language-toggle-next{opacity:.65}
.header.scrolled .language-toggle{color:var(--c-text-sub);border-color:var(--c-border)}
.header.scrolled .language-toggle:hover{color:var(--c-accent);border-color:var(--c-accent-l)}
.header.scrolled .language-toggle-current{color:var(--c-text)}

.logo{
  font-family:var(--ff-display);font-size:24px;font-weight:500;
  letter-spacing:.14em;color:var(--c-white);
  transition:color .3s;
}
.header.scrolled .logo{color:var(--c-text)}

.nav{display:flex;align-items:center;gap:32px}
.nav-link{
  font-size:13px;letter-spacing:.08em;
  color:rgba(255,255,255,.8);
  transition:color .3s;position:relative;
}
.nav-link::after{
  content:'';position:absolute;bottom:-3px;left:0;
  width:0;height:1px;background:currentColor;
  transition:width .35s var(--ease);
}
.nav-link:hover{color:var(--c-white)}
.nav-link:hover::after{width:100%}

.header.scrolled .nav-link{color:var(--c-text-sub)}
.header.scrolled .nav-link:hover{color:var(--c-accent)}

.nav-link--cta{
  padding:8px 24px;
  border:1px solid rgba(255,255,255,.4);
  border-radius:var(--radius-pill);
  color:var(--c-white);
}
.nav-link--cta::after{display:none}
.nav-link--cta:hover{
  background:rgba(255,255,255,.12);
  border-color:rgba(255,255,255,.6);
}
.header.scrolled .nav-link--cta{
  border-color:var(--c-accent);color:var(--c-accent);
}
.header.scrolled .nav-link--cta:hover{
  background:var(--c-accent);color:var(--c-white);
}

/* Hamburger */
.hamburger{
  display:none;width:32px;height:32px;
  position:relative;z-index:110;
}
.hamburger span{
  display:block;width:22px;height:1.5px;
  background:var(--c-white);
  position:absolute;left:5px;
  transition:all .35s var(--ease);
}
.hamburger span:first-child{top:11px}
.hamburger span:last-child{top:19px}
.header.scrolled .hamburger span{background:var(--c-text)}

.hamburger.active span:first-child{
  top:15px;transform:rotate(45deg);background:var(--c-text);
}
.hamburger.active span:last-child{
  top:15px;transform:rotate(-45deg);background:var(--c-text);
}

/* ================================================================
   Hero
   ================================================================ */
.hero{
  position:relative;min-height:100vh;min-height:100dvh;
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;
  background:var(--c-text);
}

.hero-bg{position:absolute;inset:0}
.hero-bg-shape{
  position:absolute;border-radius:50%;
  filter:blur(80px);opacity:.45;
}
.hero-bg-shape--1{
  width:55vw;height:55vw;
  top:-10%;left:-10%;
  background:radial-gradient(circle,#c4967a,transparent 70%);
  animation:float1 14s ease-in-out infinite;
}
.hero-bg-shape--2{
  width:45vw;height:45vw;
  bottom:-5%;right:-5%;
  background:radial-gradient(circle,#a08070,transparent 70%);
  animation:float2 16s ease-in-out infinite;
}
.hero-bg-shape--3{
  width:30vw;height:30vw;
  top:30%;right:20%;
  background:radial-gradient(circle,#d4b89c,transparent 70%);
  animation:float3 12s ease-in-out infinite;
}
@keyframes float1{0%,100%{transform:translate(0,0)}50%{transform:translate(4vw,3vw)}}
@keyframes float2{0%,100%{transform:translate(0,0)}50%{transform:translate(-3vw,-4vw)}}
@keyframes float3{0%,100%{transform:translate(0,0)}50%{transform:translate(-2vw,3vw)}}

.hero-content{
  position:relative;z-index:2;text-align:center;
  color:var(--c-white);padding:0 24px;
}
.hero-label{
  font-family:var(--ff-display);font-style:italic;
  font-size:14px;letter-spacing:.25em;
  opacity:.7;margin-bottom:20px;
  animation:fadeUp .9s var(--ease) .2s both;
}
.hero-title{
  font-family:var(--ff-display);font-weight:400;
  font-size:clamp(48px,8vw,88px);letter-spacing:.18em;
  line-height:1.1;margin-bottom:28px;
  animation:fadeUp .9s var(--ease) .35s both;
}
.hero-tagline{
  font-size:15px;font-weight:300;letter-spacing:.08em;line-height:2;
  opacity:.8;margin-bottom:48px;
  animation:fadeUp .9s var(--ease) .5s both;
}
.hero-actions{
  display:flex;gap:16px;justify-content:center;flex-wrap:wrap;
  animation:fadeUp .9s var(--ease) .65s both;
}

@keyframes fadeUp{
  from{opacity:0;transform:translateY(24px)}
  to{opacity:1;transform:translateY(0)}
}

.hero-scroll{
  position:absolute;bottom:36px;left:50%;transform:translateX(-50%);
  z-index:2;
}
.hero-scroll-dot{
  width:6px;height:6px;border-radius:50%;
  background:rgba(255,255,255,.5);
  animation:scrollDot 2.4s var(--ease) infinite;
}
@keyframes scrollDot{
  0%{opacity:1;transform:translateY(0)}
  60%{opacity:0;transform:translateY(28px)}
  100%{opacity:0;transform:translateY(28px)}
}

/* ================================================================
   About
   ================================================================ */
.about{background:var(--c-bg)}
.about-layout{
  display:grid;grid-template-columns:1fr 1.1fr;
  gap:80px;align-items:center;
}
.about-visual-frame{
  position:relative;
}
.about-visual-frame::before{
  content:'';position:absolute;inset:-12px;
  border:1px solid var(--c-border);border-radius:var(--radius-lg);
}
.about-visual-inner{
  background:var(--c-surface);border-radius:var(--radius-lg);
  overflow:hidden;display:flex;align-items:center;justify-content:center;
  aspect-ratio:7/9;
}
.about-visual-inner svg{width:70%;opacity:.7}

/* ================================================================
   Pillars (3 features)
   ================================================================ */
.pillars{background:var(--c-bg-warm);padding:100px 0}
.pillars-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:32px;
}
.pillar-card{
  background:var(--c-bg-card);
  border-radius:var(--radius-md);
  padding:48px 36px;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease);
}
.pillar-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}
.pillar-num{
  font-family:var(--ff-display);font-size:32px;font-weight:400;
  color:var(--c-accent-l);line-height:1;display:block;margin-bottom:24px;
}
.pillar-title{
  font-weight:500;font-size:17px;letter-spacing:.05em;
  line-height:1.7;margin-bottom:18px;
}
.pillar-text{
  font-size:13px;line-height:2;color:var(--c-text-sub);
}

/* ================================================================
   Menu
   ================================================================ */
.menu{background:var(--c-bg)}
.menu-list{
  max-width:740px;margin:0 auto;
  display:flex;flex-direction:column;gap:0;
}
.menu-item{
  padding:32px 0;
  border-bottom:1px solid var(--c-border);
}
.menu-item:first-child{border-top:1px solid var(--c-border)}
.menu-item-head{
  display:flex;align-items:center;gap:12px;margin-bottom:8px;
}
.menu-item-name{
  font-weight:500;font-size:17px;letter-spacing:.04em;
}
.menu-item-badge{
  font-size:10px;font-weight:500;letter-spacing:.06em;
  padding:3px 12px;border-radius:var(--radius-pill);
  background:var(--c-accent);color:var(--c-white);
}
.menu-item-desc{
  font-size:13px;line-height:1.9;color:var(--c-text-sub);
  margin-bottom:14px;
}
.menu-item-meta{
  display:flex;justify-content:space-between;align-items:baseline;
}
.menu-item-time{
  font-size:12px;color:var(--c-text-sub);letter-spacing:.04em;
}
.menu-item-price{
  font-family:var(--ff-display);font-size:24px;
  letter-spacing:.02em;color:var(--c-accent-h);
}
.menu-item-price small{
  font-family:var(--ff-body);font-size:11px;
  color:var(--c-text-sub);margin-left:4px;
}

/* ================================================================
   Service Detail
   ================================================================ */
.service-detail{background:var(--c-bg-warm)}

.service-detail-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:28px;
}

.service-detail-card{
  background:var(--c-bg-card);
  border-radius:var(--radius-md);
  padding:44px 40px;
  border:1px solid var(--c-border);
  transition:transform .4s var(--ease),box-shadow .4s var(--ease);
}
.service-detail-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}

.service-detail-card-header{
  display:flex;
  align-items:baseline;
  gap:16px;
  margin-bottom:24px;
  padding-bottom:20px;
  border-bottom:1px solid var(--c-border);
}

.service-detail-num{
  font-family:var(--ff-display);
  font-size:28px;
  font-weight:400;
  color:var(--c-accent-l);
  line-height:1;
  flex-shrink:0;
}

.service-detail-title{
  font-weight:500;
  font-size:17px;
  letter-spacing:.05em;
  line-height:1.5;
  color:var(--c-text);
}

.service-detail-list{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.service-detail-list li{
  font-size:13px;
  line-height:1.8;
  color:var(--c-text-sub);
  padding-left:18px;
  position:relative;
}
.service-detail-list li::before{
  content:'';
  position:absolute;
  left:0;
  top:.7em;
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--c-accent-l);
}

/* ================================================================
   Gallery
   ================================================================ */
.gallery{background:var(--c-bg-warm)}
.gallery-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.gallery-card{cursor:pointer}
.gallery-thumb{
  aspect-ratio:1;border-radius:var(--radius-md);
  background:var(--bg);
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;
  transition:transform .5s var(--ease),box-shadow .4s var(--ease);
}
.gallery-thumb-label{
  font-family:var(--ff-display);font-size:14px;
  letter-spacing:.15em;color:rgba(255,255,255,.6);
}
.gallery-card:hover .gallery-thumb{
  transform:scale(1.03);box-shadow:var(--shadow-hover);
}
.gallery-name{
  text-align:center;font-size:12px;letter-spacing:.04em;
  color:var(--c-text-sub);margin-top:12px;
}
.gallery-note{
  text-align:center;margin-top:48px;
  font-size:13px;color:var(--c-text-sub);
}

/* ================================================================
   Stylist
   ================================================================ */
.stylist{background:var(--c-bg)}
.stylist-layout{
  display:grid;grid-template-columns:280px 1fr;
  gap:72px;align-items:center;
  max-width:800px;margin:0 auto;
}
.stylist-photo-frame{
  border-radius:var(--radius-lg);overflow:hidden;
  background:var(--c-surface);
}
.stylist-photo-frame svg{width:100%;display:block}
.stylist-role{
  font-family:var(--ff-display);font-style:italic;
  font-size:13px;color:var(--c-accent);letter-spacing:.12em;
  margin-bottom:4px;
}
.stylist-name{
  font-weight:600;font-size:22px;letter-spacing:.08em;
  margin-bottom:20px;
}
.stylist-certs{
  margin-top:24px;display:flex;flex-wrap:wrap;gap:8px;
}
.stylist-certs li{
  font-size:11px;padding:5px 14px;
  border-radius:var(--radius-pill);
  background:var(--c-surface);color:var(--c-text-sub);
}

/* ================================================================
   Salon Info
   ================================================================ */
.salon{background:var(--c-bg-warm)}
.salon-layout{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;
}
.salon-map-placeholder{
  aspect-ratio:4/3;border-radius:var(--radius-md);
  background:var(--c-bg-card);border:1px solid var(--c-border);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  color:var(--c-text-sub);gap:4px;
}
.salon-map-placeholder p{font-size:14px;font-weight:500;letter-spacing:.06em}
.salon-map-placeholder span{font-size:11px;opacity:.5}

.info-list{display:flex;flex-direction:column}
.info-row{
  display:grid;grid-template-columns:100px 1fr;
  gap:16px;padding:16px 0;
  border-bottom:1px solid var(--c-border);
  font-size:14px;
}
.info-row dt{color:var(--c-text-sub);font-size:13px;letter-spacing:.04em}
.info-row dd a{
  color:var(--c-accent);transition:color .3s;
}
.info-row dd a:hover{color:var(--c-accent-h)}

/* ================================================================
   Reserve
   ================================================================ */
.reserve{
  background:var(--c-bg);padding:100px 0 120px;
}
.reserve-box{
  text-align:center;
  background:var(--c-bg-card);
  border-radius:var(--radius-lg);
  padding:72px 48px;
  box-shadow:var(--shadow-card);
}
.reserve-lead{
  font-size:14px;line-height:2.1;color:var(--c-text-sub);
  margin-bottom:48px;
}
.reserve-cards{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
  max-width:720px;margin:0 auto;
}
.reserve-card{
  display:flex;flex-direction:column;align-items:center;
  padding:36px 20px;border:1px solid var(--c-border);
  border-radius:var(--radius-md);
  transition:all .4s var(--ease);
}
.reserve-card:hover{
  border-color:var(--c-accent-l);
  transform:translateY(-3px);
  box-shadow:var(--shadow-hover);
}
.reserve-card-icon{
  width:36px;height:36px;color:var(--c-accent);margin-bottom:16px;
}
.reserve-card-title{
  font-size:12px;color:var(--c-text-sub);letter-spacing:.06em;
  margin-bottom:6px;
}
.reserve-card-value{
  font-family:var(--ff-display);font-size:18px;
  letter-spacing:.06em;margin-bottom:6px;
}
.reserve-card-sub{
  font-size:11px;color:var(--c-text-sub);
}

/* ================================================================
   Footer
   ================================================================ */
.footer{
  background:var(--c-text);color:rgba(255,255,255,.65);
  padding:56px 0 28px;
}
.footer-top{
  display:flex;justify-content:space-between;align-items:flex-start;
  padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-logo{
  font-family:var(--ff-display);font-size:22px;font-weight:500;
  letter-spacing:.16em;color:var(--c-white);display:block;
}
.footer-tagline{font-size:11px;margin-top:8px;opacity:.5;letter-spacing:.04em}
.footer-nav{display:flex;gap:24px}
.footer-nav a{
  font-size:12px;letter-spacing:.08em;transition:color .3s;
}
.footer-nav a:hover{color:var(--c-white)}
.footer-social{display:flex;gap:14px}
.footer-social a{opacity:.5;transition:opacity .3s}
.footer-social a:hover{opacity:1}
.footer-bottom{
  padding-top:20px;text-align:center;
  font-size:10px;opacity:.35;letter-spacing:.04em;
}

/* ================================================================
   Scroll Reveal
   ================================================================ */
[data-reveal]{
  opacity:0;transform:translateY(28px);
  transition:opacity .75s var(--ease),transform .75s var(--ease);
}
[data-reveal].visible{opacity:1;transform:translateY(0)}

/* ================================================================
   Responsive
   ================================================================ */
@media(max-width:1024px){
  .section{padding:88px 0}
  .pillars{padding:80px 0}

  .about-layout{gap:48px}
  .pillars-grid{gap:20px}
  .service-detail-grid{gap:20px}
  .service-detail-card{padding:36px 32px}
  .gallery-grid{grid-template-columns:repeat(3,1fr)}
  .salon-layout{grid-template-columns:1fr;gap:36px}
  .stylist-layout{gap:48px}
}

@media(max-width:768px){
  :root{--header-h:60px}
  .container{padding:0 20px}
  .section{padding:72px 0}
  .pillars{padding:64px 0}
  .heading-lg{font-size:22px}
  .section-head{margin-bottom:48px}
  .sp-only{display:inline}

  /* Header Mobile */
  .header-inner{justify-content:flex-start;padding:0 20px}
  .logo{margin-right:auto}
  .language-toggle{margin:0 12px 0 0;padding:7px 10px}
  .hamburger{display:block}
  .nav{
    position:fixed;inset:0;
    background:var(--c-bg);
    flex-direction:column;align-items:center;justify-content:center;
    gap:0;opacity:0;pointer-events:none;
    transition:opacity .35s var(--ease);
    z-index:105;
  }
  .nav.open{opacity:1;pointer-events:auto}
  .nav.open .nav-link{
    color:var(--c-text)!important;
    font-size:16px;padding:14px 0;
  }
  .nav.open .nav-link--cta{
    margin-top:12px;border-color:var(--c-accent);color:var(--c-accent);
  }

  /* About */
  .about-layout{grid-template-columns:1fr;gap:36px}
  .about-visual{max-width:260px;margin:0 auto}

  /* Pillars */
  .pillars-grid{grid-template-columns:1fr;gap:16px}
  .pillar-card{padding:32px 28px}

  /* Service Detail */
  .service-detail-grid{grid-template-columns:1fr;gap:16px}
  .service-detail-card{padding:32px 28px}

  /* Gallery */
  .gallery-grid{grid-template-columns:repeat(2,1fr);gap:14px}

  /* Stylist */
  .stylist-layout{
    grid-template-columns:1fr;gap:36px;
    text-align:center;
  }
  .stylist-photo{max-width:200px;margin:0 auto}
  .stylist-certs{justify-content:center}

  /* Reserve */
  .reserve{padding:72px 0 88px}
  .reserve-box{padding:48px 24px}
  .reserve-cards{grid-template-columns:1fr;gap:14px;max-width:320px}
  .reserve-lead br{display:none}

  /* Footer */
  .footer-top{flex-direction:column;gap:28px;align-items:flex-start}
  .footer-nav{flex-wrap:wrap;gap:14px}
}

@media(max-width:480px){
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
  .hero-title{letter-spacing:.1em}
  .btn{padding:13px 32px;font-size:12px}
  .hero-actions{gap:12px}
}