/* Phase Design Inc. — corporate site v2 */
:root{
  --ink:#1b1c1c;
  --sub:#6d7171;
  --line:#dcdcd8;
  --bg:#fbfbf9;
  --tint:#f1f1ed;
  --accent:#2f6166;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Jost","Noto Sans JP",sans-serif;font-weight:300;line-height:1.95;letter-spacing:.02em;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:1180px;margin:0 auto;padding:0 32px}

/* header */
.site-header{position:fixed;inset:0 0 auto 0;z-index:50;transition:background .35s,color .35s,box-shadow .35s;color:#fff}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:72px}
.site-header.solid{background:rgba(251,251,249,.94);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);color:var(--ink);box-shadow:0 1px 0 var(--line)}
.logo{text-decoration:none;font-weight:500;letter-spacing:.06em;font-size:15px}
.nav{display:flex;gap:40px}
.nav a{text-decoration:none;text-transform:uppercase;font-size:11.5px;letter-spacing:.22em;opacity:.75;transition:opacity .2s}
.nav a:hover{opacity:1}
.nav-toggle,.nav-btn{display:none}

/* hero */
.hero{height:100vh;min-height:560px;position:relative;display:flex;align-items:flex-end;color:#fff;background:#12302f url(img/hero.jpg) center/cover no-repeat}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.25) 0%,rgba(0,0,0,0) 30%,rgba(0,0,0,.45) 100%)}
.hero-inner{position:relative;width:100%;padding-bottom:13vh}
.hero-eyebrow{margin:0 0 18px;font-size:11.5px;letter-spacing:.3em;text-transform:uppercase;opacity:.8}
.hero h1{margin:0;font-weight:300;font-size:clamp(40px,7vw,96px);line-height:1.05;letter-spacing:.01em}
.hero-lead{margin:28px 0 0;font-size:clamp(14px,1.3vw,16px);letter-spacing:.12em;opacity:.9}
.scroll{position:absolute;right:32px;bottom:0;width:1px;height:80px;background:rgba(255,255,255,.35);overflow:hidden}
.scroll::after{content:"";position:absolute;left:0;top:-40px;width:1px;height:40px;background:#fff;animation:drop 2.2s ease-in-out infinite}
@keyframes drop{to{top:80px}}

/* sections */
.sec{padding:140px 0}
.sec-tint{background:var(--tint)}
.sec-head{display:flex;align-items:baseline;gap:22px;margin-bottom:72px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.sec-head .num{font-size:12px;letter-spacing:.2em;color:var(--accent)}
.sec-head h2{margin:0;font-weight:300;font-size:clamp(28px,3.2vw,40px);letter-spacing:.04em}

/* service */
.service{display:grid;grid-template-columns:5fr 6fr;gap:80px;align-items:start}
.service-img{margin:0;aspect-ratio:4/5;overflow:hidden}
.service-img img{width:100%;height:100%;object-fit:cover}
.service-list{list-style:none;margin:0;padding:0;counter-reset:s}
.service-list li{padding:36px 0;border-bottom:1px solid var(--line)}
.service-list li:first-child{padding-top:0}
.service-list .en{margin:0 0 6px;font-size:11.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--sub)}
.service-list h3{margin:0 0 14px;font-weight:400;font-size:20px;letter-spacing:.08em}
.service-list p{margin:0;font-size:14px;color:#3d4040}

/* brands */
.brand-group{display:grid;grid-template-columns:200px 1fr;gap:40px;align-items:start}
.brand-group + .brand-group{margin-top:56px}
.label{margin:0;padding-top:10px;font-weight:400;font-size:11.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--sub)}
.logos{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.logos li{aspect-ratio:3/2;display:flex;align-items:center;justify-content:center;padding:14% 20%;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}
.logos a{display:flex;align-items:center;justify-content:center;width:100%;height:100%}
.logos img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;mix-blend-mode:multiply;filter:grayscale(1);opacity:.82;transition:opacity .25s}
.logos li:hover img{opacity:1}
.logos img.svg{max-width:58%}

/* band */
.band{height:78vh;min-height:360px;background:#1a1414 url(img/band.jpg) center 30%/cover no-repeat}

/* archive */
.feature{margin:0 0 28px}
.yt button,.yt iframe{display:block;width:100%;aspect-ratio:16/9;border:0;padding:0;background:#111;cursor:pointer;position:relative;overflow:hidden}
.yt button img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease,opacity .3s;opacity:.92}
.yt button:hover img{transform:scale(1.03);opacity:1}
.yt button::after{content:"";position:absolute;left:50%;top:50%;width:64px;height:64px;margin:-32px 0 0 -32px;border:1px solid rgba(255,255,255,.85);border-radius:50%;background:rgba(0,0,0,.15) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 12'%3E%3Cpath d='M0 0l10 6-10 6z' fill='%23fff'/%3E%3C/svg%3E") 54% 50%/14px no-repeat}
.feature .yt button::after,.feature button::after{width:84px;height:84px;margin:-42px 0 0 -42px}
.cap,.yt figcaption{margin:12px 0 0;font-size:12.5px;letter-spacing:.04em;color:var(--sub);line-height:1.6}
.vgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.vgrid .yt{margin:0}
.yt-more{margin:36px 0 0;text-align:right;font-size:12px;letter-spacing:.2em;text-transform:uppercase}
.yt-more a{text-decoration:none;border-bottom:1px solid currentColor;padding-bottom:2px}
.photos{margin-top:96px;display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:clamp(220px,27vw,360px);gap:8px}
.photos img{width:100%;height:100%;object-fit:cover}
.photos img:nth-child(1),.photos img:nth-child(6){grid-column:span 2}

/* company */
.company{margin:0 0 0 240px;display:grid;grid-template-columns:160px 1fr;border-top:1px solid var(--line)}
.company dt,.company dd{margin:0;padding:22px 0;border-bottom:1px solid var(--line);font-size:14px}
.company dt{color:var(--sub);letter-spacing:.1em}
.company dd span{display:block;font-size:12px;color:var(--sub);margin-top:2px}

/* contact */
.contact{margin-left:240px}
.contact-lead{margin:0 0 40px;font-size:14px}
.contact-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.contact-list a{display:block;position:relative;padding:28px 28px 30px;border:1px solid var(--ink);text-decoration:none;font-size:15px;letter-spacing:.06em;transition:background .25s,color .25s}
.contact-list a::after{content:"→";position:absolute;right:24px;bottom:28px;transition:transform .25s}
.contact-list a:hover{background:var(--ink);color:#fff}
.contact-list a:hover::after{transform:translateX(4px)}
.contact-list .en{display:block;margin-bottom:8px;font-size:11px;letter-spacing:.22em;text-transform:uppercase;opacity:.6}
.mail{margin:28px 0 0;font-size:13px;color:var(--sub);letter-spacing:.08em}

/* footer */
.site-footer{padding:36px 0;border-top:1px solid var(--line);font-size:11.5px;letter-spacing:.14em;color:var(--sub)}
.site-footer .wrap{display:flex;justify-content:space-between}

/* tablet */
@media (max-width:1000px){
  .service{grid-template-columns:1fr;gap:56px}
  .service-img{aspect-ratio:16/10}
  .brand-group{grid-template-columns:1fr;gap:18px}
  .company,.contact{margin-left:0}
  .vgrid{grid-template-columns:repeat(2,1fr)}
}

/* mobile */
@media (max-width:720px){
  .wrap{padding:0 20px}
  .sec{padding:96px 0}
  .sec-head{margin-bottom:48px}
  .nav-btn{display:block;width:26px;height:18px;position:relative;cursor:pointer}
  .nav-btn span,.nav-btn::before,.nav-btn::after{content:"";position:absolute;left:0;width:100%;height:1px;background:currentColor;transition:.25s}
  .nav-btn span{top:50%}
  .nav-btn::before{top:0}
  .nav-btn::after{bottom:0}
  .nav{position:fixed;inset:72px 0 auto 0;flex-direction:column;gap:0;background:rgba(251,251,249,.98);color:var(--ink);max-height:0;overflow:hidden;transition:max-height .35s}
  .nav a{padding:18px 20px;border-top:1px solid var(--line);opacity:1}
  .nav-toggle:checked ~ .nav{max-height:420px}
  .nav-toggle:checked ~ .nav-btn span{opacity:0}
  .nav-toggle:checked ~ .nav-btn::before{top:50%;transform:rotate(45deg)}
  .nav-toggle:checked ~ .nav-btn::after{bottom:auto;top:50%;transform:rotate(-45deg)}
  .scroll{right:20px}
  .logos{grid-template-columns:repeat(2,1fr)}
  .vgrid{grid-template-columns:1fr}
  .photos{grid-template-columns:repeat(2,1fr);grid-auto-rows:56vw;margin-top:64px}
  .company{grid-template-columns:1fr}
  .company dt{border-bottom:0;padding-bottom:0}
  .company dd{padding-top:4px}
  .contact-list{grid-template-columns:1fr}
  .band{height:56vh}
}