/* PEAK — crimson #962730 on warm paper #F0EDEC (PEAK パンフレットの配色).
   Gothic only, no serif. */

:root{
  --paper:#F0EDEC;
  --paper-2:#E7E3E1;
  --ink:#1A1718;
  --muted:#6B6463;
  --contour:#CDB9BA;
  --rule:#CFC9C7;
  --accent:#962730;
  --accent-2:#7C1C25;
  --on-accent:#FFFFFF;
  --maxw:70rem;
  --sans:"Hiragino Sans","Hiragino Kaku Gothic ProN","Helvetica Neue",
         "Yu Gothic Medium","Yu Gothic","Noto Sans JP",Arial,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{
    --paper:#15100F; --paper-2:#1C1615; --ink:#EDE8E6; --muted:#9A908D;
    --contour:#3A2628; --rule:#332A28; --accent:#E0697A; --accent-2:#EC8795;
    --on-accent:#15100F;
  }
}
:root[data-theme="dark"]{
  --paper:#15100F; --paper-2:#1C1615; --ink:#EDE8E6; --muted:#9A908D;
  --contour:#3A2628; --rule:#332A28; --accent:#E0697A; --accent-2:#EC8795;
  --on-accent:#15100F;
}
:root[data-theme="light"]{
  --paper:#F0EDEC; --paper-2:#E7E3E1; --ink:#1A1718; --muted:#6B6463;
  --contour:#CDB9BA; --rule:#CFC9C7; --accent:#962730; --accent-2:#7C1C25;
  --on-accent:#FFFFFF;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.9;
  -webkit-font-smoothing:antialiased;
}

html[data-lang="ja"] [data-en]{display:none}
html[data-lang="en"] [data-ja]{display:none}

a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.skip{position:absolute;left:-9999px;background:var(--accent);color:var(--on-accent);padding:.6rem 1rem;z-index:99}
.skip:focus{left:1rem;top:1rem}

.label{font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);font-variant-numeric:tabular-nums}
.muted{color:var(--muted)}
.intro{margin-bottom:2.6rem;max-width:40rem}

/* header ------------------------------------------------------------- */
header.site{
  position:sticky;top:0;z-index:20;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:.9rem clamp(1.1rem,4vw,3rem);
  background:color-mix(in srgb,var(--paper) 88%,transparent);
  backdrop-filter:blur(10px);
  border-bottom:2px solid var(--ink);
}
.brand{display:flex;align-items:baseline;gap:.8rem;text-decoration:none}
.brand b{font-weight:400;letter-spacing:.42em;font-size:.98rem}
.brand span{font-size:.68rem;letter-spacing:.14em;color:var(--muted)}
header.site nav{display:flex;align-items:center;gap:clamp(.9rem,2.4vw,1.7rem)}
header.site nav a{text-decoration:none;font-size:.78rem;letter-spacing:.1em;color:var(--muted)}
header.site nav a:hover{color:var(--accent)}
@media (max-width:34rem){header.site nav a[href="#host"]{display:none}}
button.lang{
  font:inherit;font-size:.7rem;letter-spacing:.14em;cursor:pointer;
  background:transparent;color:var(--ink);
  border:1px solid var(--rule);border-radius:0;padding:.3rem .7rem;
}
button.lang:hover{border-color:var(--accent);color:var(--accent)}

/* layout -------------------------------------------------------------- */
.band{border-bottom:1px solid var(--rule)}
.band.alt{background:var(--paper-2)}
.wrap{
  max-width:var(--maxw);margin:0 auto;
  padding:clamp(3.5rem,8vw,6.5rem) clamp(1.2rem,5vw,3rem);
  display:grid;grid-template-columns:7rem 1fr;gap:clamp(1rem,4vw,3rem);
}
@media (max-width:48rem){.wrap{grid-template-columns:1fr;gap:1.4rem}}
.rail .tick{
  display:block;font-size:.7rem;letter-spacing:.14em;color:var(--muted);
  font-variant-numeric:tabular-nums;padding-top:.45rem;border-top:2px solid var(--accent);
}
.rail .tick em{display:block;font-style:normal;letter-spacing:.2em;font-size:.62rem;margin-top:.2rem}
.col{min-width:0;max-width:46rem}

h1,h2,h3{font-weight:700;letter-spacing:.01em;text-wrap:balance}
h2{font-size:clamp(1.45rem,3.3vw,2rem);line-height:1.5;margin:0 0 1.1rem}
p{margin:0 0 1.15rem}

/* hero ---------------------------------------------------------------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--rule)}
#contours{
  position:absolute;inset:0;width:100%;height:100%;pointer-events:none;
  -webkit-mask-image:linear-gradient(to top,#000 5%,transparent 88%);
          mask-image:linear-gradient(to top,#000 5%,transparent 88%);
}
.hero .wrap{position:relative;padding-top:clamp(4rem,10vw,7.5rem);padding-bottom:clamp(4.5rem,11vw,8rem)}
h1{font-size:clamp(1.9rem,5.6vw,3.5rem);line-height:1.34;margin:0 0 1.6rem}
.eyebrow{margin:0 0 1.4rem;color:var(--accent)}
.lede{font-size:clamp(1rem,1.8vw,1.1rem);color:var(--muted);max-width:38rem}

.cta{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:2rem}
.btn{
  display:inline-block;text-decoration:none;font-size:.82rem;letter-spacing:.1em;
  padding:.75rem 1.5rem;border-radius:0;
  background:var(--accent);color:var(--on-accent);border:1px solid var(--accent);
  transition:background .18s,border-color .18s,color .18s;
}
.btn:hover{background:var(--accent-2);border-color:var(--accent-2)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--rule)}
.btn.ghost:hover{border-color:var(--accent);color:var(--accent)}

/* the question --------------------------------------------------------- */
.quote{
  margin:0;font-weight:700;
  font-size:clamp(1.2rem,2.9vw,1.8rem);line-height:1.65;max-width:40rem;
  border-left:3px solid var(--accent);padding-left:clamp(1rem,2.5vw,1.6rem);
}

/* axes ----------------------------------------------------------------- */
.axis{border-top:1px solid var(--rule);padding-top:1.6rem;margin-bottom:2.6rem}
.axis:last-child{margin-bottom:0}
.axis-head{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.axis h3{font-size:clamp(1.15rem,2.4vw,1.4rem);letter-spacing:.06em;margin:0 0 .7rem}
.axis h3 em{font-style:normal;font-weight:400;color:var(--accent)}
.axis .role{font-size:.7rem;letter-spacing:.18em;color:var(--accent);white-space:nowrap}
.axis-q{font-size:.97rem;margin-bottom:.6rem}
.axis-body{color:var(--muted);font-size:.93rem;margin:0}

/* events --------------------------------------------------------------- */
.event{border-top:3px solid var(--ink);padding-top:1.4rem}
.event-head{display:flex;align-items:baseline;justify-content:space-between;gap:1rem}
.event-no{font-size:.72rem;letter-spacing:.2em;color:var(--muted);font-variant-numeric:tabular-nums;margin:0}
.status{margin:0;font-size:.67rem;letter-spacing:.17em;padding:.2rem .7rem}
.status.open{color:#fff;background:var(--accent)}
.status.past{color:var(--muted);background:transparent;border:1px solid var(--rule)}
.event h3{font-size:clamp(1.45rem,3.5vw,2rem);line-height:1.45;margin:.5rem 0 .2rem}
.event h3 em{font-style:normal;font-weight:400;color:var(--accent)}
.event-sub{font-size:.84rem;letter-spacing:.08em;color:var(--muted);margin:0 0 .6rem}

.facts{margin:1.6rem 0 1.8rem;border-top:1px solid var(--rule);max-width:40rem}
.facts div{display:grid;grid-template-columns:7.5rem 1fr;gap:1rem;padding:.75rem 0;border-bottom:1px solid var(--rule)}
@media (max-width:30rem){.facts div{grid-template-columns:1fr;gap:.1rem}}
.facts dt{margin:0;font-size:.73rem;letter-spacing:.14em;color:var(--muted);padding-top:.35rem}
.facts dd{margin:0;font-size:.94rem;font-variant-numeric:tabular-nums}
.facts .sub{display:block;font-size:.82rem;color:var(--muted)}
.social{display:flex;gap:.7rem;margin:1.2rem 0 0}
.social a{display:inline-flex;align-items:center;justify-content:center;width:2.5rem;height:2.5rem;border:1px solid var(--rule);border-radius:50%;color:var(--muted);text-decoration:none;transition:color .15s,border-color .15s}
.social a:hover{color:var(--accent);border-color:var(--accent)}
.social svg{width:1.35rem;height:1.35rem;display:block;flex:none}

.agenda{margin:2rem 0}
.agenda ol{list-style:none;margin:.8rem 0 0;padding:0;border-top:1px solid var(--rule);max-width:34rem}
.agenda li{
  display:grid;grid-template-columns:5rem 1fr;gap:1rem;
  padding:.5rem 0;border-bottom:1px solid var(--rule);font-size:.92rem;
}
.agenda .t{color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:.05em}

.speakers{margin:2rem 0}
.speakers ul{list-style:none;margin:.8rem 0 0;padding:0;display:grid;gap:.5rem;max-width:34rem}
@media (min-width:40rem){.speakers ul{grid-template-columns:repeat(3,1fr);gap:1rem}}
.speakers li{border-top:1px solid var(--rule);padding-top:.5rem}
.speakers b{display:block;font-weight:700;font-size:.94rem}
.speakers span{font-size:.8rem;color:var(--muted)}

.fine{font-size:.82rem;color:var(--muted)}
.fine a{color:var(--accent)}
.next-up{margin-top:2.6rem;padding-top:1.2rem;border-top:1px solid var(--rule)}

/* host ----------------------------------------------------------------- */
.host-name{font-size:1.35rem;font-weight:700;letter-spacing:.04em;line-height:1.4;margin:0 0 .15rem}
.host-name small{display:block;font-size:.82rem;font-weight:400;color:var(--muted);letter-spacing:.05em;margin-top:.15rem}
.host-role{font-size:.72rem;letter-spacing:.16em;color:var(--accent);margin:0 0 1.6rem}

footer.site{
  max-width:var(--maxw);margin:0 auto;
  padding:2.5rem clamp(1.2rem,5vw,3rem) 4rem;font-size:.78rem;color:var(--muted);
}
footer.site p{margin:0 0 .45rem;max-width:42rem}