/* =============================================
   HIRANAI ARCHITECTURE v3
   Palette: white / #f5f5f5 / #222 / #8b6b3d
   Type: Shippori Mincho (display) + Zen Kaku Gothic New (body)
         Cormorant Garamond (english)
   Signature: vertical accent bars + generous whitespace
   ============================================= */

:root {
  --white: #ffffff;
  --bg: #f5f5f5;
  --bg-warm: #f8f6f2;
  --text: #222222;
  --text-light: #666666;
  --text-muted: #999999;
  --border: #e5e3de;
  --accent: #8b6b3d;
  --accent-light: #a8895c;
  --accent-dark: #6b5230;
  --dark: #1a1a18;
  --dark-sub: #2a2a28;

  --font-display: 'Shippori Mincho', 'Georgia', serif;
  --font-en: 'Cormorant Garamond', 'Georgia', serif;
  --font-body: 'Zen Kaku Gothic New', 'Hiragino Kaku Gothic ProN', sans-serif;

  --header-h: 72px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

/* === RESET === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:var(--header-h);}
body{font-family:var(--font-body);color:var(--text);background:var(--white);line-height:1.8;font-weight:400;-webkit-font-smoothing:antialiased;overflow-x:hidden;}
a{text-decoration:none;color:inherit;-webkit-tap-highlight-color:transparent;}
img{max-width:100%;height:auto;display:block;}
button{cursor:pointer;font-family:inherit;border:none;background:none;}
address{font-style:normal;}
.container{max-width:1100px;margin:0 auto;padding:0 24px;}
.sp{display:none;}
@media(max-width:768px){.sp{display:inline;}}

/* === SCROLL REVEAL === */
[data-reveal]{opacity:0;transform:translateY(28px);transition:opacity .7s ease, transform .7s ease;}
[data-reveal].revealed{opacity:1;transform:translateY(0);}

/* === HEADER === */
.header{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .4s, box-shadow .4s;}
.header.scrolled{background:rgba(255,255,255,.96);backdrop-filter:blur(12px);box-shadow:0 1px 0 var(--border);}
.header-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:var(--header-h);padding:0 24px;}
.header-logo{display:flex;flex-direction:column;gap:1px;}
.logo-jp{font-family:var(--font-display);font-size:17px;font-weight:600;color:var(--text);letter-spacing:.1em;transition:color .3s;}
.logo-en{font-family:var(--font-en);font-size:8.5px;color:var(--accent);letter-spacing:.22em;text-transform:uppercase;}
.header:not(.scrolled) .logo-jp{color:#fff;}
.header:not(.scrolled) .logo-en{color:rgba(255,255,255,.5);}
.header-right{display:flex;align-items:center;gap:16px;}
.header-tel{display:flex;align-items:center;gap:6px;font-family:var(--font-en);font-size:14px;font-weight:500;color:var(--text);transition:color .3s;}
.header:not(.scrolled) .header-tel{color:#fff;}
.header-cta{display:inline-flex;align-items:center;padding:8px 20px;background:var(--accent);color:#fff;font-size:12px;font-weight:500;letter-spacing:.08em;transition:background .2s;}
.header-cta:hover{background:var(--accent-dark);}
.hamburger{width:44px;height:44px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:5px;position:relative;z-index:200;}
.hamburger span{display:block;width:20px;height:1.5px;background:var(--text);transition:transform .3s, opacity .2s, background .3s;}
.header:not(.scrolled) .hamburger span{background:#fff;}
.hamburger.active span{background:var(--text);}
.hamburger.active span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
.hamburger.active span:nth-child(2){opacity:0;}
.hamburger.active span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}
@media(max-width:768px){
  .header-tel span{display:none;}
  .header-cta{display:none;}
}

/* === FULLSCREEN NAV === */
.fullnav{position:fixed;inset:0;z-index:150;background:var(--white);opacity:0;pointer-events:none;transition:opacity .35s;display:flex;align-items:center;justify-content:center;}
.fullnav.active{opacity:1;pointer-events:auto;}
.fullnav-inner{text-align:center;padding:24px;}
.fullnav-link{display:block;font-family:var(--font-display);font-size:18px;color:var(--text);padding:12px 0;letter-spacing:.06em;transition:color .2s;position:relative;}
.fullnav-link:hover{color:var(--accent);}
.fullnav-info{margin-top:40px;padding-top:24px;border-top:1px solid var(--border);}
.fullnav-company{font-size:12px;color:var(--text-light);margin-bottom:4px;}
.fullnav-address{font-size:11px;color:var(--text-muted);}
.fullnav-tel{font-family:var(--font-en);font-size:18px;font-weight:600;color:var(--accent);display:block;margin-top:8px;}

/* === HERO === */
.hero{position:relative;height:100vh;height:100dvh;overflow:hidden;}
.hero-media{position:absolute;inset:0;}
.hero-slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity 1.2s ease;transform:scale(1.03);}
.hero-slide.active{opacity:1;animation:heroScale 6s ease-in-out forwards;}
@keyframes heroScale{from{transform:scale(1.03);}to{transform:scale(1.08);}}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.15) 0%,rgba(0,0,0,.35) 50%,rgba(0,0,0,.7) 100%);}
.hero-body{position:relative;z-index:2;height:100%;display:flex;align-items:flex-end;max-width:1200px;margin:0 auto;padding:0 24px 100px;}
.hero-content{max-width:640px;}
.hero-eyebrow{font-family:var(--font-en);font-size:11px;color:var(--accent-light);letter-spacing:.3em;text-transform:uppercase;margin-bottom:16px;}
.hero-title{font-family:var(--font-display);font-size:clamp(30px,5.5vw,52px);font-weight:700;color:#fff;line-height:1.45;letter-spacing:.04em;margin-bottom:20px;}
.hero-title-line{display:block;}
.hero-sub{font-size:14px;color:rgba(255,255,255,.7);line-height:2;margin-bottom:32px;}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;}
.hero-indicator{position:absolute;bottom:40px;right:40px;z-index:3;display:flex;gap:8px;}
.hero-dot{width:32px;height:2px;background:rgba(255,255,255,.3);border:none;cursor:pointer;transition:background .3s, width .3s;}
.hero-dot.active{background:#fff;width:48px;}
.hero-scroll{position:absolute;bottom:40px;left:50%;transform:translateX(-50%);z-index:3;display:flex;flex-direction:column;align-items:center;gap:8px;}
.hero-scroll span{font-family:var(--font-en);font-size:10px;color:rgba(255,255,255,.4);letter-spacing:.2em;text-transform:uppercase;}
.hero-scroll-line{width:1px;height:40px;background:linear-gradient(180deg,rgba(255,255,255,.4),transparent);animation:scrollPulse 2s ease infinite;}
@keyframes scrollPulse{0%,100%{opacity:.4;}50%{opacity:1;}}
@media(max-width:768px){
  .hero-body{padding:0 20px 80px;}
  .hero-indicator{display:none;}
  .hero-scroll{display:none;}
  .hero-actions{flex-direction:column;}
}

/* === BUTTONS === */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:13px;font-weight:500;letter-spacing:.08em;padding:14px 32px;transition:all .25s;}
.btn--primary{background:var(--accent);color:#fff;}
.btn--primary:hover{background:var(--accent-dark);transform:translateY(-1px);}
.btn--white{border:1px solid rgba(255,255,255,.4);color:#fff;background:transparent;}
.btn--white:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.7);}
.btn--outline{border:1px solid var(--text);color:var(--text);}
.btn--outline:hover{background:var(--text);color:#fff;}
@media(max-width:768px){.btn{width:100%;text-align:center;}}

/* === SECTIONS === */
.section{padding:100px 0;}
.sec-head{text-align:center;margin-bottom:56px;}
.sec-en{font-family:var(--font-en);font-size:12px;color:var(--accent);letter-spacing:.3em;text-transform:uppercase;display:block;margin-bottom:6px;}
.sec-title{font-family:var(--font-display);font-size:clamp(22px,3.2vw,30px);font-weight:600;color:var(--text);line-height:1.6;letter-spacing:.04em;}
.sec-bar{width:40px;height:1px;background:var(--accent);margin:16px auto 0;}
.sec-lead{font-size:13px;color:var(--text-light);margin-top:16px;line-height:2;}
.sec-head--light .sec-title{color:#fff;}
.sec-head--light .sec-lead{color:rgba(255,255,255,.6);}
.sec-more{text-align:center;margin-top:48px;}

/* === REASON === */
.section--reason{background:var(--white);}
.reason-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;}
.reason-item{text-align:center;padding:16px 8px;}
.reason-icon{width:48px;height:48px;margin:0 auto 20px;color:var(--accent);}
.reason-icon svg{width:100%;height:100%;}
.reason-title{font-family:var(--font-display);font-size:15px;font-weight:600;color:var(--text);margin-bottom:10px;letter-spacing:.03em;}
.reason-text{font-size:12.5px;color:var(--text-light);line-height:2;}
@media(max-width:900px){.reason-grid{grid-template-columns:repeat(2,1fr);gap:24px;}}
@media(max-width:520px){.reason-grid{grid-template-columns:1fr;gap:8px;}}

/* === WORKS === */
.section--works{background:var(--bg-warm);}
.works-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.works-card{display:block;background:#fff;overflow:hidden;transition:transform .3s,box-shadow .3s;}
.works-card:hover{transform:translateY(-4px);box-shadow:0 16px 48px rgba(0,0,0,.08);}
.works-img{position:relative;overflow:hidden;}
.works-img img{width:100%;height:220px;object-fit:cover;transition:transform .5s;}
.works-card:hover .works-img img{transform:scale(1.05);}
.works-cat{position:absolute;top:12px;left:12px;background:var(--dark);color:var(--accent-light);font-size:10px;padding:4px 10px;letter-spacing:.08em;}
.works-body{padding:20px;}
.works-area{font-size:10px;color:var(--accent);letter-spacing:.08em;font-weight:500;}
.works-name{font-size:14px;font-weight:700;color:var(--text);margin:6px 0 8px;line-height:1.6;}
.works-desc{font-size:12px;color:var(--text-light);line-height:1.9;}
@media(max-width:768px){.works-grid{grid-template-columns:1fr;}.works-img img{height:200px;}}

/* === SERVICE === */
.section--service{background:var(--dark);padding:100px 0 110px;}
.service-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;}
.service-card{display:flex;flex-direction:column;align-items:center;text-align:center;padding:32px 12px;border:1px solid rgba(255,255,255,.06);transition:border-color .3s,background .3s;}
.service-card:hover{border-color:var(--accent);background:rgba(255,255,255,.03);}
.service-icon{width:40px;height:40px;color:var(--accent-light);margin-bottom:16px;}
.service-icon svg{width:100%;height:100%;}
.service-name{font-family:var(--font-display);font-size:14px;font-weight:600;color:#fff;margin-bottom:8px;letter-spacing:.02em;}
.service-text{font-size:11px;color:rgba(255,255,255,.45);line-height:1.8;}
@media(max-width:900px){.service-grid{grid-template-columns:repeat(3,1fr);}}
@media(max-width:520px){.service-grid{grid-template-columns:repeat(2,1fr);}}

/* === INSTAGRAM === */
.section--insta{background:var(--white);}
.insta-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:4px;}
.insta-item{position:relative;overflow:hidden;aspect-ratio:1;}
.insta-img{width:100%;height:100%;background-size:cover;background-position:center;transition:transform .4s;}
.insta-item:hover .insta-img{transform:scale(1.08);}
.insta-hover{position:absolute;inset:0;background:rgba(139,107,61,.85);display:flex;flex-direction:column;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;padding:12px;text-align:center;}
.insta-item:hover .insta-hover{opacity:1;}
.insta-tag{font-size:10px;color:rgba(255,255,255,.7);letter-spacing:.06em;margin-bottom:6px;}
.insta-caption{font-size:11px;color:#fff;line-height:1.7;}
@media(max-width:768px){.insta-grid{grid-template-columns:repeat(3,1fr);}}
@media(max-width:520px){.insta-grid{grid-template-columns:repeat(2,1fr);}}

/* === RECRUIT === */
.section--recruit{position:relative;padding:120px 0;overflow:hidden;text-align:center;}
.recruit-bg{position:absolute;inset:0;background-size:cover;background-position:center;}
.recruit-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(26,26,24,.88),rgba(60,45,25,.82));}
.recruit-inner{position:relative;z-index:2;}
.recruit-lead{font-size:14px;color:rgba(255,255,255,.6);line-height:2.2;margin-bottom:28px;}
.recruit-tags{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:32px;}
.recruit-tag{font-size:12px;padding:8px 20px;border:1px solid rgba(255,255,255,.15);color:rgba(255,255,255,.6);letter-spacing:.04em;}

/* === CONTACT === */
.section--contact{background:var(--bg-warm);padding:100px 0 120px;}
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.contact-card{display:flex;flex-direction:column;align-items:center;text-align:center;padding:36px 20px;background:#fff;border:1px solid var(--border);transition:transform .2s,box-shadow .2s;}
.contact-card:hover{transform:translateY(-3px);box-shadow:0 12px 40px rgba(0,0,0,.06);}
.contact-card svg{color:var(--accent);margin-bottom:16px;}
.contact-label{font-size:11px;color:var(--text-muted);letter-spacing:.06em;margin-bottom:4px;}
.contact-num{font-family:var(--font-en);font-size:20px;font-weight:600;color:var(--text);margin-bottom:6px;}
.contact-note{font-size:10px;color:var(--text-muted);}
.contact-card--line{border-color:var(--accent);background:var(--bg-warm);}
.contact-card--line svg{color:#06C755;}
@media(max-width:768px){.contact-grid{grid-template-columns:1fr;}}

/* === FOOTER === */
.footer{background:var(--dark);color:rgba(255,255,255,.4);padding:60px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.3fr 2fr;gap:48px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.06);}
.footer-logo-jp{font-family:var(--font-display);font-size:18px;font-weight:600;color:#fff;display:block;letter-spacing:.08em;}
.footer-logo-en{font-family:var(--font-en);font-size:9px;color:var(--accent);letter-spacing:.2em;display:block;margin-bottom:16px;}
.footer-addr{font-size:12px;line-height:2.2;}
.footer-addr a{color:rgba(255,255,255,.5);transition:color .2s;}
.footer-addr a:hover{color:var(--accent);}
.footer-sns{margin-top:16px;display:flex;gap:12px;}
.footer-sns a{color:rgba(255,255,255,.35);transition:color .2s;}
.footer-sns a:hover{color:var(--accent);}
.footer-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.footer-col h4{font-size:11px;color:rgba(255,255,255,.5);font-weight:500;letter-spacing:.08em;margin-bottom:12px;}
.footer-col a{display:block;font-size:12px;color:rgba(255,255,255,.3);padding:4px 0;transition:color .2s;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{padding:20px 0;text-align:center;font-size:11px;letter-spacing:.02em;}
@media(max-width:768px){.footer-grid{grid-template-columns:1fr;gap:32px;}.footer-nav{grid-template-columns:repeat(2,1fr);}}

/* === FIXED BAR (mobile) === */
.fixed-bar{position:fixed;bottom:0;left:0;right:0;z-index:90;display:none;grid-template-columns:1fr 1fr;height:calc(56px + var(--safe-bottom));padding-bottom:var(--safe-bottom);background:#fff;border-top:1px solid var(--border);box-shadow:0 -2px 12px rgba(0,0,0,.06);}
.fixed-btn{display:flex;align-items:center;justify-content:center;gap:6px;font-size:13px;font-weight:600;min-height:44px;}
.fixed-btn--tel{background:#fff;color:var(--text);}
.fixed-btn--cta{background:var(--accent);color:#fff;}
@media(max-width:768px){
  .fixed-bar{display:grid;}
  body{padding-bottom:calc(56px + var(--safe-bottom));}
}

/* === REDUCED MOTION === */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;}
  [data-reveal]{opacity:1;transform:none;}
}