:root{
  --bg:#ffffff;
  --text:#111111;
  --muted:#5b5b5b;
  --line:rgba(0,0,0,.10);
  --soft:rgba(0,0,0,.02);

  --container:1100px;
  --radius:22px;

  --space-1:12px;
  --space-2:18px;
  --space-3:28px;
  --space-4:44px;
  --space-5:68px;
  --space-6:96px;
  --space-7:132px;
}

*{ box-sizing:border-box; }
html,body{
  line-height: 1.9; height:100%; }
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Serif JP", serif;
  line-height:1.9;
  letter-spacing:.02em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a{ color:inherit; text-decoration:none; }
a:hover{ opacity:.92; }

.container{
  width:min(100% - 44px, var(--container));
  margin-inline:auto;
}

.br-md{ display:none; }
.muted{ color:var(--muted); }
.fine{ margin-top:14px; color:var(--muted); font-size:12px; }

.header{
  position:sticky; top:0; z-index:30;
  background:rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--line);
}
.header__inner{
  display:flex; align-items:center; justify-content:space-between;
  padding: 14px 0;
  gap: 18px;
}
.brand{
  display:flex; align-items:center; gap:12px;
  white-space:nowrap;
}
.brand__mark{
  width:10px; height:10px; border-radius:999px;
  background:#111;
}
.brand__name{
  font-size:14px;
  font-weight:600;
  letter-spacing:.10em;
}

.hamburger{
  appearance:none;
  border:0;
  background:transparent;
  padding:10px;
  border-radius:14px;
  cursor:pointer;
}
.hamburger:hover{ background: var(--soft); }
.hamburger__line{
  display:block;
  width:22px;
  height:2px;
  background:#111;
  margin:4px 0;
  border-radius:99px;
}

.drawer{
  position:fixed;
  inset:0;
  pointer-events:none;
}
.drawer.is-open{ pointer-events:auto; }
.drawer__backdrop{
  position:absolute; inset:0;
  background: rgba(0,0,0,.32);
  opacity:0;
  transition: opacity .18s ease;
}
.drawer.is-open .drawer__backdrop{ opacity:1; }

.drawer__panel{
  position:absolute;
  top:0; right:0;
  width:min(88vw, 360px);
  height:100%;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-left:1px solid var(--line);
  transform: translateX(100%);
  transition: transform .18s ease;
  display:flex;
  flex-direction:column;
  padding: 18px;
}
.drawer.is-open .drawer__panel{ transform: translateX(0); }

.drawer__head{
  display:flex; align-items:center; justify-content:space-between;
  margin-bottom: 10px;
}
.drawer__title{
  font-size:12px;
  letter-spacing:.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.drawer__close{
  border:1px solid var(--line);
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-radius:14px;
  width:36px; height:36px;
  cursor:pointer;
}
.drawer__nav{
  display:flex;
  flex-direction:column;
  gap: 6px;
  padding: 10px 10px 14px;
  border:1px solid rgba(0,0,0,.06);
  border-radius: 18px;
  background: rgba(255,255,255,.88);
  box-shadow: 0 10px 28px rgba(0,0,0,.08);
}
.drawer__link{
  padding: 12px 12px;
  border-radius: 14px;
  color: var(--text);
  background: rgba(255,255,255,.65);
}
.drawer__link:hover{ background: rgba(255,255,255,.92); }

.drawer__foot{
  margin-top:auto;
  padding-top: 14px;
}
.drawer__mini{
  margin-top: 12px;
  display:flex;
  gap: 10px;
  flex-wrap:wrap;
  color: var(--muted);
  font-size: 13px;
}
.drawer__mini a{
  padding: 8px 10px;
  border:1px solid var(--line);
  border-radius: 16px;
  background:#fff;
  color: var(--text);
}

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding: 12px 16px;
  border-radius: 16px;
  border:1px solid rgba(0,0,0,.12);
  font-size:14px;
  letter-spacing:.05em;
  white-space:nowrap;
}
.btn--solid{ background:#111; color:#fff; }
.btn--ghost{ background:#fff; color:var(--text); }
.btn--full{ width:100%; }

.hero{
  padding: 0 0 var(--space-6);
}
.hero__media{
  border-bottom:1px solid var(--line);
  background: #fff;
}
.hero__copy{
  padding-top: var(--space-6);
}
.kicker{
  margin:0 0 12px;
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
}
.address{
  margin:0 0 12px;
  font-size:12px;
  letter-spacing:.10em;
  text-transform:uppercase;
  color:var(--muted);
}
.hero__title{
  margin:0;
  font-weight:400;
  letter-spacing:.02em;
  line-height:1.18;
  font-size: clamp(34px, 4.9vw, 64px);
}
.hero__lead{
  margin: var(--space-3) 0 0;
  max-width: 82ch;
  color: var(--muted);
  font-size: 15px;
}
.hero__actions{
  display:flex; gap:12px; flex-wrap:wrap;
  margin-top: var(--space-4);
}
.hero__chips{
  display:flex; flex-wrap:wrap; gap:10px;
  margin-top: var(--space-3);
}
.chip{
  padding: 8px 12px;
  border:1px solid var(--line);
  background: rgba(0,0,0,.015);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing:.05em;
}

.heroSlider{
  position:relative;
  width:100%;
  height: min(70vh, 620px);
  overflow:hidden;
}
.heroSlider__track{
  height:100%;
  display:flex;
  transition: transform .35s ease;
  will-change: transform;
}
.heroSlide{
  flex: 0 0 100%;
  height:100%;
  position:relative;
}
.heroSlide img{
  width:100%;
  height:100%;
  display:block;
  object-fit: cover;
}
.heroSlide::after{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(to bottom, rgba(0,0,0,.10), rgba(0,0,0,.10));
  pointer-events:none;
}
.heroSlider__hud{
  position:absolute;
  left: 20px;
  right: 20px;
  bottom: 16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
}
.heroSlider__dots{
  display:flex;
  gap: 8px;
  align-items:center;
  justify-content:center;
  flex: 1;
}
.dot{
  width: 7px;
  height: 7px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.9);
  background: rgba(255,255,255,.0);
  opacity: .9;
  cursor:pointer;
}
.dot.is-active{
  background: rgba(255,255,255,.92);
}
.iconBtn{
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.55);
  background: rgba(0,0,0,.20);
  color:#fff;
  cursor:pointer;
  font-size: 22px;
  line-height: 1;
}
.iconBtn:hover{ background: rgba(0,0,0,.28); }

.section{
  padding: var(--space-7) 0;
  border-top: 1px solid var(--line);
}
.section--soft{
  background: linear-gradient(to bottom, var(--bg), rgba(0,0,0,.01));
}
.section__head{
  display:flex; justify-content:space-between; gap: var(--space-3);
  align-items:flex-end; flex-wrap:wrap;
  margin-bottom: var(--space-4);
}
.section__title{
  margin:0;
  font-size: 14px;
  letter-spacing:.18em;
  text-transform: uppercase;
  font-weight:600;
}
.section__note{
  margin:0;
  color: var(--muted);
  font-size:12px;
  letter-spacing:.05em;
}

.grid{
  display:grid;
  gap: var(--space-4);
  align-items:start;
}
.grid--2{
  grid-template-columns: 1.05fr .95fr;
}
.prose{ font-size:15px; }
.prose p{ margin: 0 0 16px; }
.prose p:last-child{ margin-bottom:0; }

.panel{
  border:1px solid var(--line);
  border-radius: var(--radius);
  background:#fff;
  padding: var(--space-3);
}
.dl{ display:flex; flex-direction:column; }
.dl__row{
  display:grid;
  grid-template-columns: 120px 1fr;
  gap: 14px;
  padding: 12px 0;
  border-bottom:1px solid rgba(0,0,0,.06);
}
.dl__row:last-child{ border-bottom:none; }
.dl__k{ color:var(--muted); font-size:13px; }
.dl__v{ color:var(--text); font-size:14px; }

.callout{
  margin-top: var(--space-4);
  border:1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(0,0,0,.015);
  padding: 16px;
}
.callout__title{
  font-size: 13px;
  letter-spacing:.10em;
  font-weight:600;
}
.callout__body{
  margin-top:10px;
  color:var(--muted);
  font-size: 13px;
}

.media{
  margin:0;
  border:1px solid var(--line);
  border-radius: var(--radius);
  overflow:hidden;
  background: rgba(0,0,0,.02);
}
.media img{
  width:100%;
  height:100%;
  display:block;
  object-fit: cover;
}
.media--wide{ aspect-ratio: 16 / 10; }
.media--tall{ aspect-ratio: 4 / 5; }

.stack{ display:grid; gap: var(--space-3); }

.embed{
  border:1px solid var(--line);
  border-radius: var(--radius);
  background:#fff;
  padding: 16px;
}
.embed__label{
  font-size: 12px;
  letter-spacing:.16em;
  text-transform: uppercase;
  color: var(--muted);
}
.embed__frame{
  margin-top: 12px;
  border-radius: 18px;
  overflow:hidden;
  border:1px solid rgba(0,0,0,.08);
  background: rgba(0,0,0,.02);
  min-height: 420px;
  height: 420px;
}
.embed__frame iframe{
  width:100%;
  height:100%;
  border:0;
  display:block;
}

.carousel{
  position:relative;
}
.carousel__hud{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap: 10px;
  margin-bottom: 12px;
}
.carousel__hint{
  color: var(--muted);
  font-size: 12px;
  letter-spacing:.16em;
  text-transform: uppercase;
}
.carousel__track{
  display:flex;
  gap: 12px;
  overflow:auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 4px;
  -webkit-overflow-scrolling: touch;
}
.carousel__track::-webkit-scrollbar{ height: 8px; }
.carousel__track::-webkit-scrollbar-thumb{ background: rgba(0,0,0,.12); border-radius: 99px; }
.carousel__track::-webkit-scrollbar-track{ background: rgba(0,0,0,.05); border-radius: 99px; }

.projCard{
  flex: 0 0 min(420px, 78vw);
  scroll-snap-align: start;
  border:1px solid var(--line);
  border-radius: var(--radius);
  background:#fff;
  overflow:hidden;
  display:flex;
  flex-direction:column;
}
.projCard__img{
  aspect-ratio: 16/10;
  background: rgba(0,0,0,.02);
  border-bottom:1px solid rgba(0,0,0,.06);
}
.projCard__img img{
  width:100%;
  height:100%;
  object-fit: cover;
  display:block;
}
.projCard__body{
  padding: 14px;
}
.projCard__top{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap: 10px;
  flex-wrap:wrap;
}
.projCard__title{
  margin:0;
  font-size: 15px;
  font-weight:600;
}
.projCard__meta{
  font-size: 12px;
  color: var(--muted);
  letter-spacing:.05em;
}
.projCard__desc{
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
}
.projCard__cta{
  margin-top: 12px;
  display:inline-flex;
  border-bottom:1px solid rgba(0,0,0,.35);
  padding-bottom:2px;
  font-size: 13px;
  letter-spacing:.05em;
  width: fit-content;
}

.divider{
  height:1px;
  background: var(--line);
  margin: var(--space-5) 0;
}

.igGrid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.igItem{
  border:1px solid var(--line);
  border-radius: var(--radius);
  overflow:hidden;
  background:#fff;
}
.igItem__frame{
  aspect-ratio: 1 / 1;
  background: rgba(0,0,0,.02);
}
.igItem__frame iframe{
  width:100%;
  height:100%;
  border:0;
  display:block;
}
.igFoot{
  margin-top: 16px;
  display:flex;
  justify-content:flex-end;
}

.footer{
  padding: var(--space-6) 0 var(--space-7);
  border-top: 1px solid var(--line);
}
.footer__inner{
  display:flex; justify-content:space-between;
  gap: 18px; flex-wrap:wrap;
  align-items:center;
}
.footer__name{
  font-size:13px;
  font-weight:600;
  letter-spacing:.12em;
}
.footer__copy{
  margin-top:6px;
  font-size:12px;
  color:var(--muted);
}
.footer__links{
  display:flex; gap: 10px; flex-wrap:wrap;
}
.footer__links a{
  padding: 8px 10px;
  border:1px solid var(--line);
  border-radius: 16px;
  background:#fff;
  font-size:13px;
}

@media (max-width: 920px){
  .grid--2{ grid-template-columns: 1fr; }
  .br-md{ display:inline; }
  .media--tall{ aspect-ratio: 16 / 10; }
  .igGrid{ grid-template-columns: repeat(2, 1fr); }
  .igItem__frame iframe{ height: clamp(360px, 92vw, 560px); }
  .heroSlider{ height: min(62vh, 520px); }
}
@media (max-width: 520px){
  .drawer__panel{ width: 100vw; }

  .container{ width:min(100% - 28px, var(--container)); }
  .dl__row{ grid-template-columns: 1fr; }
  .embed__frame{ min-height: 360px;
  height: 360px;
  height: 420px; }
}

.workMedia{ height: clamp(260px, 34vw, 420px); }
.workMedia img{ width:100%; height:100%; object-fit:cover; display:block; }
@media (max-width: 920px){ .workMedia{ height: clamp(220px, 70vw, 360px); } }

.langSwitch{
  display:flex;
  gap:8px;
  align-items:center;
  margin-left: 12px;
}
.langSwitch__btn{
  border:1px solid var(--line);
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--ink);
  font-size: 12px;
  letter-spacing: .08em;
  padding: 8px 10px;
  border-radius: 999px;
}
.langSwitch__btn.is-active{
  background: rgba(0,0,0,.85);
  border-color: rgba(0,0,0,.85);
  color:#fff;
}

/* Work section: balanced text + equal images */
.workGrid{ align-items: start; column-gap: 56px; }
.workText{ max-width: 46ch; }
.workMediaCol{ gap: 18px; }
.workMedia{ height: clamp(240px, 20vw, 320px); }
.workMedia img{ width:100%; height:100%; object-fit:cover; display:block; }
@media (max-width: 920px){
  .workGrid{ column-gap: 24px; }
  .workText{ max-width: none; }
  .workMedia{ height: clamp(220px, 60vw, 360px); }
}

/* ===== Sticky Header Enhancement (non-breaking) =====
   Goal: keep header visible at top and prevent in-page anchor jumps from hiding section titles.
   This uses a fixed header + body padding while preserving your current visuals.
*/

/* 1) Define header height (adjust if you change header padding/font size) */
:root{
  --header-h: 72px;
}
@media (max-width: 920px){
  :root{ --header-h: 64px; }
}

/* 2) Fix header to top */
.header{
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
}

/* 3) Prevent content being hidden under fixed header */
body{
  padding-top: var(--header-h);
}

/* 4) Improve anchor navigation so section titles don't tuck under header */
section[id]{
  scroll-margin-top: calc(var(--header-h) + 16px);
}

/* =========================================================
   Mobile polish fixes (header wrap, padding, section rhythm, footer lines)
   Applied as overrides to avoid breaking existing layout.
   ========================================================= */

/* ---- Header: force 2-line brand on small screens ---- */
@media (max-width: 520px){
  .header__inner{
    padding: 12px 0;
    gap: 12px;
  }

  /* allow wrapping */
  .brand{
    white-space: normal;     /* override nowrap */
    align-items: flex-start;
    min-width: 0;
  }
  .brand__name{
    display: block;
    line-height: 1.25;
    min-width: 0;
  }

  /* If a helper span/br exists, make it a real line break only in header */
  .header .br-md{ display:block; }

  /* keep language + hamburger inside viewport */
  .langSwitch{
    margin-left: 0;
    gap: 6px;
  }
  .langSwitch__btn{
    padding: 7px 9px;
    font-size: 11px;
    letter-spacing: .06em;
  }
  .hamburger{
    padding: 8px;
  }
}

/* ---- Container: increase side padding on mobile for a more premium feel ---- */
@media (max-width: 520px){
  .container{
    width: min(100% - 44px, var(--container)); /* was 28px; increase to 44px */
  }
}

/* ---- Section spacing: reduce vertical padding without losing luxury ---- */
.section{
  padding: var(--space-6) 0; /* was space-7 (132px) */
}
@media (max-width: 920px){
  .section{ padding: 88px 0; }
}
@media (max-width: 520px){
  .section{ padding: 72px 0; }
  .section__head{ margin-bottom: 32px; }
}

/* ---- Footer: enforce desired line order on mobile (best-effort CSS) ---- */
@media (max-width: 520px){
  .footer{
    padding: 72px 0 88px;
  }
  .footer__inner{
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  /* 1) Murai Kigyoten  2) murai-teori-studio (if split spans exist) */
  .footer__name{
    display: flex;
    flex-direction: column;
    gap: 4px;
  }

  /* Make each line block if markup uses spans (recommended) */
  .footer__copy > span{ display:block; }
  .footer__copy{ white-space: normal; }

  /* TEL/FAX wrapper if you added it in HTML */
  .footer__telFax{
    display:flex;
    flex-direction: column;
    align-items:flex-start;
    gap: 6px;
    margin-top: 6px;
  }
}
@media (min-width: 521px){
  /* PC: if TEL/FAX wrapper exists, keep inline with spacing */
  .footer__telFax{
    display:flex;
    align-items: baseline;
    gap: 24px;
    flex-wrap: wrap;
  }
}

/* =========================================================
   WORK section: align image width with text on mobile
   ========================================================= */
@media (max-width: 920px){
  /* 親カラムをフル幅に統一 */
  .workGrid > .prose,
  .workGrid > .workMediaCol{
    width: 100%;
    max-width: 100%;
  }

  /* figure 自体をフル幅に */
  .workMediaCol .media{
    width: 100%;
    max-width: 100%;
    margin-left: 0;
    margin-right: 0;
  }

  /* 画像も確実にフル幅 */
  .workMediaCol .media img{
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
  }
}
/* =========================================================
   WORK section: prevent image cropping on mobile
   ========================================================= */
@media (max-width: 920px){
  /* figure の固定比率/固定高が原因なので解除 */
  #work .workMediaCol .media{
    aspect-ratio: auto !important;
    height: auto !important;
  }

  /* 画像が cover で切れているのを解除 */
  #work .workMediaCol .media img{
    position: static !important;  /* absolute指定の保険 */
    width: 100% !important;
    height: auto !important;
    object-fit: contain !important; /* ←切れない */
    display: block;
  }
}

#top { scroll-margin-top: 96px; }