/* ============================================================
   晴空放送 · layout — bar, hero, sections, boards, footer
   ============================================================ */

/* ─────────── top bar ─────────── */
.topbar{
  position:sticky; top:0; z-index:40;
  display:flex; align-items:center; gap:clamp(10px,2vw,26px);
  height:var(--nav-h);
  padding-inline:clamp(12px,3vw,34px);
  background:rgba(255,255,255,.7);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.brand{ display:flex; align-items:center; gap:9px; margin-right:auto; }
.brand__star{
  width:22px; height:22px; flex:none;
  background:conic-gradient(from 45deg,var(--lemon),#fff 25%,var(--sakura-mid) 50%,#fff 75%,var(--mizu-mid));
  clip-path:polygon(50% 0,60% 40%,100% 50%,60% 60%,50% 100%,40% 60%,0 50%,40% 40%);
  filter:drop-shadow(0 0 8px rgba(255,180,205,.9));
  animation:spin 12s linear infinite;
}
.brand__cjk{ font-family:var(--f-round); font-weight:900; font-size:1.06rem; letter-spacing:.06em; }
.brand__latin{
  font-family:var(--f-mono); font-size:.58rem; font-weight:700;
  letter-spacing:.24em; color:var(--ink-3); padding-top:3px;
}

.nav{ display:flex; align-items:center; gap:clamp(4px,1.4vw,18px); }
.nav a{
  position:relative; padding:.34em .5em;
  font-family:var(--f-round); font-weight:700; font-size:.9rem;
  color:var(--ink-2); transition:color .2s;
  white-space:nowrap;
}
.nav a::after{
  content:''; position:absolute; left:.4em; right:.4em; bottom:.05em; height:3px;
  border-radius:3px;
  background:linear-gradient(90deg,var(--sakura),var(--mizu-mid));
  transform:scaleX(0); transform-origin:left; transition:transform .28s cubic-bezier(.4,1.3,.4,1);
}
.nav a:hover{ color:var(--ink); }
.nav a:hover::after, .nav a[aria-current="page"]::after{ transform:scaleX(1); }
.nav a[aria-current="page"]{ color:var(--ink); }
.nav a.is-locked{ color:var(--ink-4); }
.nav a.is-locked::before{ content:'🔒'; font-size:.72em; margin-right:.25em; }
.nav a.is-open.is-locked{ color:var(--grape); }
.nav a.is-open.is-locked::before{ content:'✦'; color:var(--grape); }

.burger{ display:none; width:38px; height:38px; border-radius:12px; border:1px solid var(--line); background:var(--paper); }
.burger span, .burger span::before, .burger span::after{
  display:block; width:16px; height:2px; border-radius:2px; background:var(--ink-2); margin-inline:auto;
}
.burger span::before, .burger span::after{ content:''; position:relative; }
.burger span::before{ top:-5px } .burger span::after{ top:3px }

@media (max-width:860px){
  .brand__latin{ display:none }
  .burger{ display:grid; place-items:center }
  .nav{
    position:absolute; top:var(--nav-h); right:8px; left:8px;
    flex-direction:column; align-items:stretch; gap:2px;
    padding:10px; border-radius:var(--r-lg);
    background:rgba(255,255,255,.96);
    border:1px solid var(--line); box-shadow:var(--sh-3);
    display:none;
  }
  .nav.is-open{ display:flex }
  .nav a{ padding:.6em .7em; font-size:1rem }
}

/* ─────────── page frame ─────────── */
.page{ position:relative; z-index:4; padding-bottom:96px; }
.sect{ position:relative; padding-top:clamp(48px,7vw,96px); }
.sect__head{ margin-bottom:clamp(20px,3vw,34px); }
.sect__head .h-lg{ margin-top:.15em; }
/* hand-drawn underline */
.squiggle{
  display:block; width:132px; height:9px; margin-top:.5em;
  color:var(--sakura-mid);
}

/* ─────────── hero ─────────── */
.hero{
  position:relative;
  display:grid; grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:clamp(20px,4vw,54px);
  align-items:center;
  min-height:clamp(430px,68vh,620px);
  padding-top:clamp(30px,6vw,66px);
}
.hero__title{ margin:.12em 0 .3em; }
.hero__title i{
  font-style:normal;
  background:linear-gradient(100deg,var(--sakura) 12%,#ff9ec4 40%,var(--mizu) 96%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero__lede{ max-width:31rem; }
.hero__cta{ display:flex; flex-wrap:wrap; gap:12px; margin-top:26px; }

/* the little broadcast card — tilted, taped, with a spinning disc */
.idcard{
  position:relative; z-index:4;
  justify-self:end;
  width:min(100%,344px);
  padding:22px 22px 18px;
  border-radius:var(--r-lg);
  background:var(--paper);
  border:1.5px solid var(--line);
  box-shadow:var(--sh-3);
  rotate:1.6deg;
  transition:rotate .4s, transform .4s;
}
.idcard:hover{ rotate:-.6deg; transform:translateY(-4px); }
.idcard__row{ display:flex; align-items:center; gap:14px; }
.idcard__disc{
  width:64px; height:64px; flex:none; border-radius:50%;
  background:
    radial-gradient(circle,#fff 0 17%,rgba(255,255,255,0) 18%),
    repeating-radial-gradient(circle,rgba(255,255,255,.5) 0 2px,rgba(0,0,0,0) 2px 5px),
    conic-gradient(from 0deg,var(--sakura-mid),var(--mizu-mid),var(--lemon),var(--sakura-mid));
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.7), var(--sh-1);
  animation:spin 6s linear infinite;
}
.idcard__stat{ display:flex; justify-content:space-between; gap:10px; margin-top:16px; padding-top:14px; border-top:1px dashed var(--line); }
.idcard__stat b{ display:block; font-family:var(--f-round); font-size:1.3rem; font-weight:900; color:var(--ink); line-height:1.2 }
.idcard__stat span{ font-family:var(--f-mono); font-size:.6rem; letter-spacing:.16em; color:var(--ink-3) }

@media (max-width:900px){
  .hero{ grid-template-columns:1fr; min-height:0; gap:26px; text-align:left; }
  .idcard{ justify-self:start; rotate:-1deg }
}

/* ─────────── washi tape ─────────── */
.taped{ position:relative; }
.taped::before{
  content:''; position:absolute; z-index:2;
  top:-10px; left:50%; translate:-50% 0;
  width:88px; height:21px;
  background:var(--tape-pink);
  background-image:var(--tape-pink),
    repeating-linear-gradient(90deg,rgba(255,255,255,.5) 0 3px,rgba(255,255,255,0) 3px 7px);
  rotate:-2.4deg;
  border-radius:2px;
  box-shadow:0 1px 3px rgba(90,120,170,.16);
}
.taped--l::before{ left:26px; translate:0 0; rotate:-8deg; width:74px; }
.taped--r::before{ left:auto; right:26px; translate:0 0; rotate:7deg; width:74px; }
.taped--blue::before{ background-image:var(--tape-blue),repeating-linear-gradient(90deg,rgba(255,255,255,.5) 0 3px,rgba(255,255,255,0) 3px 7px); }
.taped--lemon::before{ background-image:var(--tape-lemon),repeating-linear-gradient(90deg,rgba(255,255,255,.5) 0 3px,rgba(255,255,255,0) 3px 7px); }

/* ─────────── the works corkboard ─────────── */
.board{ columns:3 260px; column-gap:clamp(16px,2vw,26px); }
.work{
  break-inside:avoid;
  margin-bottom:clamp(18px,2.2vw,28px);
  padding:20px 20px 18px;
  border-radius:var(--r-lg);
  background:var(--paper);
  border:1.5px solid var(--line);
  box-shadow:var(--sh-2);
  transition:transform .3s cubic-bezier(.3,1.3,.5,1), box-shadow .3s, rotate .3s;
  cursor:pointer;
}
.work:nth-child(3n+1){ rotate:-.7deg }
.work:nth-child(3n+2){ rotate:.55deg }
.work:nth-child(5n+3){ rotate:1deg }
.work:hover{ transform:translateY(-5px); rotate:0deg; box-shadow:var(--sh-3); }
.work__top{ display:flex; align-items:flex-start; gap:12px; }
.work__sigil{
  width:42px; height:42px; flex:none; display:grid; place-items:center;
  border-radius:14px; font-size:1.2rem;
  background:var(--c-soft,var(--sakura-soft));
  border:1px solid rgba(255,255,255,.9);
  box-shadow:inset 0 0 0 1.5px rgba(255,255,255,.55), var(--sh-1);
}
.work__name{ font-family:var(--f-round); font-weight:700; font-size:1.04rem; line-height:1.35; }
.work__year{ font-family:var(--f-mono); font-size:.62rem; letter-spacing:.14em; color:var(--ink-3); }
.work__desc{ margin-top:11px; font-size:.9rem; line-height:1.78; color:var(--ink-2); }
.work__tags{ display:flex; flex-wrap:wrap; gap:6px; margin-top:13px; }
.work__foot{
  display:flex; align-items:center; justify-content:space-between; gap:10px;
  margin-top:13px; padding-top:11px; border-top:1px dashed var(--line);
  font-family:var(--f-mono); font-size:.68rem; letter-spacing:.05em; color:var(--ink-2);
}
.work__note{
  display:none; margin-top:12px; padding:11px 13px;
  border-radius:12px;
  background:linear-gradient(180deg,var(--paper-warm),#fff);
  border:1px dashed var(--line-warm);
  font-family:var(--f-hand); font-size:.86rem; line-height:1.72; color:var(--ink-2);
}
.work.is-open .work__note{ display:block; animation:slidein .34s ease }
.work.is-open{ box-shadow:var(--sh-3); rotate:0deg }
@keyframes slidein{ from{ opacity:0; translate:0 -6px } }
.work__more{ color:var(--sakura); font-weight:700 }

@media (max-width:640px){ .board{ columns:1 } .work{ rotate:0deg !important } }

/* ─────────── generic paper panel ─────────── */
.card{
  padding:clamp(18px,2.4vw,28px);
  border-radius:var(--r-lg);
  background:var(--paper);
  border:1.5px solid var(--line);
  box-shadow:var(--sh-2);
}
.card--warm{ background:linear-gradient(172deg,var(--paper-warm),var(--paper) 60%); }
.card--cool{ background:linear-gradient(172deg,var(--paper-cool),var(--paper) 60%); }
.duo{ display:grid; grid-template-columns:repeat(auto-fit,minmax(min(100%,270px),1fr)); gap:clamp(16px,2.2vw,26px); }

/* ─────────── blog list ─────────── */
.log{ display:flex; flex-direction:column; gap:clamp(14px,2vw,20px); }
.post{
  display:grid; grid-template-columns:82px minmax(0,1fr);
  gap:clamp(14px,2vw,24px);
  padding:clamp(16px,2.2vw,24px);
  border-radius:var(--r-lg);
  background:var(--paper);
  border:1.5px solid var(--line);
  box-shadow:var(--sh-1);
  transition:transform .28s cubic-bezier(.3,1.3,.5,1), box-shadow .28s, border-color .28s;
}
.post:hover{ transform:translateX(4px); box-shadow:var(--sh-2); border-color:var(--line-warm); }
.post__date{
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  padding:10px 0; border-radius:14px;
  background:linear-gradient(170deg,var(--sakura-soft),#fff);
  border:1px solid var(--line-warm);
  font-family:var(--f-mono); line-height:1.25;
}
.post__d{ font-size:1.5rem; font-weight:700; color:var(--sakura) }
.post__m{ font-size:.58rem; letter-spacing:.14em; color:var(--ink-3) }
.post__title{ font-family:var(--f-round); font-weight:700; font-size:1.14rem; line-height:1.5 }
.post__excerpt{ margin-top:7px; font-size:.92rem; color:var(--ink-2) }
.post__tags{ display:flex; flex-wrap:wrap; gap:6px; margin-top:12px }

/* ─────────── a written page (single post) ─────────── */
.paper{
  position:relative;
  max-width:44rem; margin-inline:auto;
  padding:clamp(24px,4vw,52px) clamp(20px,4vw,54px);
  border-radius:var(--r-lg);
  background:
    linear-gradient(180deg,rgba(255,255,255,.96),rgba(255,255,255,.96)),
    repeating-linear-gradient(180deg,transparent 0 31px,rgba(120,152,196,.13) 31px 32px);
  border:1.5px solid var(--line);
  box-shadow:var(--sh-3);
}
.paper::after{
  content:''; position:absolute; top:0; bottom:0; left:clamp(12px,3vw,32px); width:1.5px;
  background:rgba(255,143,180,.32);
}
.prose{ font-family:var(--f-hand); font-size:1.02rem; line-height:2 }
.prose p{ margin:0 0 1.15em }
.prose h3{ font-family:var(--f-round); font-weight:700; font-size:1.16rem; margin:1.7em 0 .5em }
.prose blockquote{
  margin:1.3em 0; padding:.7em 1.1em;
  border-left:3px solid var(--sakura-mid);
  background:var(--sakura-soft); border-radius:0 12px 12px 0; color:var(--ink-2);
}
.prose code{ font-family:var(--f-mono); font-size:.86em; background:var(--mizu-soft); padding:.12em .42em; border-radius:6px }
.prose hr{ border:0; border-top:1px dashed var(--line); margin:1.8em 0 }

/* ─────────── footer ─────────── */
.foot{
  position:relative; z-index:4;
  margin-top:clamp(50px,8vw,110px);
  padding:clamp(26px,4vw,44px) 0 40px;
  border-top:1px solid var(--line);
  background:rgba(255,255,255,.6);
  backdrop-filter:blur(8px);
}
.foot__grid{ display:flex; flex-wrap:wrap; gap:18px 34px; align-items:flex-start; justify-content:space-between }
.foot__sign{ font-family:var(--f-round); font-weight:900; font-size:1.1rem }
.foot small{ display:block; margin-top:8px; font-size:.74rem; color:var(--ink-3); line-height:1.85; max-width:34rem }
.foot a{ color:var(--mizu); }
.foot a:hover{ color:var(--sakura) }

/* ─────────── doors to the other rooms ─────────── */
.door{
  position:relative; display:flex; flex-direction:column; gap:6px;
  padding:clamp(16px,2.2vw,24px);
  border-radius:var(--r-lg);
  background:linear-gradient(165deg,#fff,var(--paper-cool));
  border:1.5px solid var(--line);
  box-shadow:var(--sh-1);
  transition:transform .28s cubic-bezier(.3,1.3,.5,1), box-shadow .28s, border-color .28s;
  overflow:hidden;
}
.door::after{
  content:''; position:absolute; inset:auto -30% -60% auto; width:150px; height:150px;
  border-radius:50%; background:radial-gradient(circle,var(--sakura-soft),transparent 68%);
  opacity:0; transition:opacity .3s;
}
.door:hover{ transform:translateY(-5px); box-shadow:var(--sh-3); border-color:var(--line-warm) }
.door:hover::after{ opacity:1 }
.door__glyph{ font-size:1.5rem; line-height:1 }
.door__name{ font-family:var(--f-round); font-weight:700; font-size:1.05rem }
.door__desc{ font-size:.85rem; color:var(--ink-2); line-height:1.7 }
.door__go{ margin-top:8px; font-family:var(--f-mono); font-size:.62rem; letter-spacing:.14em; color:var(--mizu) }
.door.is-locked{ background:linear-gradient(165deg,#fff,#f4f2fa) }
.door.is-locked .door__go{ color:var(--ink-4) }
.door.is-open .door__go{ color:var(--grape) }