@charset "utf-8";
/* ============================================================
   弁理士おっくんのアイデア革命 — サイトスタイル (2026-08-21)
   単独で完結。既存 radio.css には依存しない（index2/3 は従来のまま）
   ============================================================ */

:root{
  --ink:#07080b;
  --ink2:#0b0d13;
  --panel:#12141c;
  --panel2:#171a24;
  --line:rgba(255,255,255,.10);
  --line2:rgba(255,255,255,.06);
  --txt:#eceef4;
  --dim:#8f96a6;
  --dim2:#666d7d;
  --amber:#ffc233;
  --amber2:#ff9d1c;
  --red:#ff4a3d;
  --maxw:1120px;
  --r:14px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--ink);color:var(--txt);
  font-family:"Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic","Yu Gothic UI",
    "Noto Sans JP",Meiryo,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.9;letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--amber);text-decoration:none}
a:hover{color:#fff}
h1,h2,h3,h4{margin:0;line-height:1.45;font-weight:800;letter-spacing:.02em}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}

.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- 上部バー ---------- */
.topbar{
  position:sticky;top:0;z-index:60;
  background:rgba(7,8,11,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line2);
}
.topbar .wrap{display:flex;align-items:center;gap:8px;height:56px}
.brand{font-size:13px;font-weight:800;letter-spacing:.06em;color:#fff;white-space:nowrap}
.brand span{color:var(--amber)}
.navlinks{display:flex;gap:2px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.navlinks::-webkit-scrollbar{display:none}
.navlinks a{
  display:block;padding:7px 12px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--dim);white-space:nowrap;
  transition:background .2s,color .2s;
}
.navlinks a:hover{background:rgba(255,255,255,.07);color:#fff}

/* ---------- ヒーロー ---------- */
.hero{position:relative;overflow:hidden;padding:64px 0 0;isolation:isolate}
.hero::before{
  content:"";position:absolute;inset:-20% -10% auto -10%;height:120%;z-index:-2;
  background:
    radial-gradient(46% 52% at 18% 8%,rgba(255,194,51,.20),transparent 70%),
    radial-gradient(42% 46% at 88% 26%,rgba(255,74,61,.17),transparent 72%),
    radial-gradient(60% 60% at 50% 100%,rgba(90,120,255,.10),transparent 70%);
  filter:blur(2px);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:100% 3px;opacity:.5;
}
.onair{
  display:inline-flex;align-items:center;gap:9px;
  padding:6px 15px 6px 12px;border-radius:999px;
  border:1px solid rgba(255,74,61,.45);background:rgba(255,74,61,.10);
  font-size:11.5px;font-weight:800;letter-spacing:.2em;color:#ffb0a8;
}
.onair i{
  width:8px;height:8px;border-radius:50%;background:var(--red);
  box-shadow:0 0 0 0 rgba(255,74,61,.65);animation:pulse 2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(255,74,61,.6)}
  70%{box-shadow:0 0 0 11px rgba(255,74,61,0)}
  100%{box-shadow:0 0 0 0 rgba(255,74,61,0)}
}
.hero-logo{margin:26px 0 0;max-width:760px}
.hero-logo img{width:100%;height:auto;
  filter:drop-shadow(0 0 26px rgba(255,194,51,.28)) drop-shadow(0 4px 18px rgba(0,0,0,.6))}
.hero-lead{margin:26px 0 0;max-width:660px;font-size:17px;color:#cfd4e0}
.hero-lead b{color:#fff}

.airinfo{display:flex;flex-wrap:wrap;gap:10px;margin:30px 0 0}
.chip{
  display:flex;align-items:baseline;gap:9px;
  padding:11px 16px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
}
.chip .k{font-size:10.5px;font-weight:800;letter-spacing:.16em;color:var(--dim2)}
.chip .v{font-size:14.5px;font-weight:800;color:#fff}
.chip .v em{font-style:normal;color:var(--amber)}

.cta{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0 0}
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 24px;border-radius:999px;font-size:14px;font-weight:800;letter-spacing:.03em;
  border:1px solid transparent;transition:transform .18s,box-shadow .18s,background .18s;
}
.btn svg{width:16px;height:16px;flex:none}
.btn-p{background:linear-gradient(100deg,var(--amber),var(--amber2));color:#1a1204;
  box-shadow:0 8px 30px -10px rgba(255,157,28,.75)}
.btn-p:hover{color:#1a1204;transform:translateY(-2px);box-shadow:0 14px 36px -10px rgba(255,157,28,.85)}
.btn-s{border-color:var(--line);color:#fff;background:rgba(255,255,255,.05)}
.btn-s:hover{color:#fff;background:rgba(255,255,255,.11);transform:translateY(-2px)}

/* 波形 */
.wave{
  display:flex;align-items:flex-end;gap:3px;height:74px;margin:44px 0 0;opacity:.75;
  mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
}
.wave i{
  flex:1;min-width:2px;height:100%;border-radius:2px 2px 0 0;
  background:linear-gradient(180deg,var(--amber),rgba(255,74,61,.35));
  transform-origin:bottom;animation:eq 1.5s ease-in-out infinite alternate;
}
@keyframes eq{from{transform:scaleY(.10)}to{transform:scaleY(1)}}

/* ---------- セクション共通 ---------- */
.sec{padding:96px 0;position:relative}
.sec+.sec{border-top:1px solid var(--line2)}
.sec-alt{background:linear-gradient(180deg,var(--ink2),var(--ink))}
.sec-head{margin:0 0 44px}
.sec-label{
  display:flex;align-items:center;gap:12px;margin:0 0 14px;
  font-size:11.5px;font-weight:800;letter-spacing:.24em;color:var(--amber);
}
.sec-label::after{content:"";flex:1;height:1px;background:var(--line);max-width:220px}
.sec-title{font-size:clamp(25px,4.4vw,38px);color:#fff}
.sec-title small{display:block;margin-top:9px;font-size:14px;font-weight:600;color:var(--dim)}
.sec-note{margin:16px 0 0;max-width:720px;color:#c2c8d6}

/* ---------- 次回放送 ---------- */
.next{
  position:relative;overflow:hidden;border-radius:20px;
  border:1px solid rgba(255,194,51,.28);
  background:linear-gradient(135deg,rgba(255,194,51,.10),rgba(255,74,61,.06) 55%,transparent);
  padding:34px;
}
.next::before{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,194,51,.22),transparent 68%);
}
.next-k{font-size:11.5px;font-weight:800;letter-spacing:.22em;color:var(--amber);position:relative}
.next-no{margin:12px 0 0;font-size:clamp(40px,9vw,72px);font-weight:900;line-height:1;color:#fff;position:relative}
.next-no span{font-size:.4em;letter-spacing:.1em;color:var(--dim);margin-left:10px;vertical-align:.35em}
.next-when{margin:16px 0 0;font-size:20px;font-weight:800;color:#fff;position:relative}
.next-when em{font-style:normal;color:var(--amber)}
.next-guest{
  display:inline-flex;align-items:center;gap:10px;margin:20px 0 0;padding:10px 18px;
  border-radius:999px;border:1px dashed rgba(255,255,255,.22);background:rgba(0,0,0,.25);
  font-size:14px;font-weight:700;color:#e3e7f0;position:relative;
}

/* ---------- 汎用グリッド ---------- */
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.card{
  border:1px solid var(--line);border-radius:var(--r);background:var(--panel);
  padding:28px;transition:transform .22s,border-color .22s,background .22s;
}
.card:hover{transform:translateY(-3px);border-color:rgba(255,194,51,.35);background:var(--panel2)}
.card h3{font-size:18px;color:#fff}
.card p{margin:12px 0 0;font-size:14.5px;color:#bcc3d2;line-height:1.85}
.icon{
  width:52px;height:52px;margin:0 0 18px;border-radius:13px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,194,51,.11);border:1px solid rgba(255,194,51,.25);
}
.icon svg{width:26px;height:26px;stroke:var(--amber);fill:none;stroke-width:1.7;
  stroke-linecap:round;stroke-linejoin:round}

/* ---------- 出演者 ---------- */
.cast{display:grid;grid-template-columns:300px 1fr;gap:36px;align-items:start}
.portrait{
  position:relative;border-radius:18px;overflow:hidden;border:1px solid var(--line);
  background:var(--panel);
}
.portrait img{width:100%;filter:grayscale(.25) contrast(1.05)}
.portrait::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(7,8,11,.75));
}
.cast-role{font-size:11.5px;font-weight:800;letter-spacing:.2em;color:var(--amber)}
.cast-name{margin:10px 0 0;font-size:29px;color:#fff}
.cast-name small{display:block;margin-top:7px;font-size:13px;font-weight:600;color:var(--dim);letter-spacing:.06em}
.cast-body{margin:20px 0 0;color:#c2c8d6;font-size:15px}
.meta{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 0}
.tag{
  padding:6px 13px;border-radius:999px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);font-size:12px;font-weight:700;color:#cdd3e0;
}

/* ---------- 未来のアイデア革命 ---------- */
.quote{
  position:relative;border:1px solid var(--line);border-radius:var(--r);
  background:linear-gradient(160deg,var(--panel),var(--ink2));padding:30px 28px 26px;
  transition:transform .22s,border-color .22s;
}
.quote:hover{transform:translateY(-3px);border-color:rgba(255,194,51,.35)}
.quote::before{
  content:"\201C";position:absolute;top:2px;right:20px;
  font-family:Georgia,serif;font-size:82px;line-height:1;color:rgba(255,194,51,.16);
}
.quote-txt{font-size:19px;font-weight:800;line-height:1.7;color:#fff;position:relative}
.quote-by{
  display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;
  margin:20px 0 0;padding-top:16px;border-top:1px solid var(--line2);
}
.quote-by b{font-size:14.5px;color:var(--amber)}
.quote-by span{font-size:12px;color:var(--dim)}

/* ---------- バックナンバー ---------- */
.filters{display:flex;flex-wrap:wrap;gap:9px;margin:0 0 26px}
.filters button{
  font:inherit;cursor:pointer;padding:8px 18px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--dim);
  font-size:12.5px;font-weight:800;letter-spacing:.08em;transition:.2s;
}
.filters button:hover{color:#fff;background:rgba(255,255,255,.09)}
.filters button[aria-pressed="true"]{
  background:linear-gradient(100deg,var(--amber),var(--amber2));
  border-color:transparent;color:#1a1204;
}
.eps{display:grid;grid-template-columns:repeat(auto-fill,minmax(276px,1fr));gap:14px}
.ep-li{display:block}
.ep{
  display:flex;gap:16px;align-items:center;height:100%;
  border:1px solid var(--line);border-radius:12px;background:var(--panel);
  padding:16px 18px;transition:transform .2s,border-color .2s,background .2s;
  color:inherit;
}
.ep:hover{transform:translateY(-2px);border-color:rgba(255,194,51,.32);background:var(--panel2);color:inherit}
a.ep:hover{border-color:rgba(255,194,51,.55)}
.ep-no{
  flex:none;width:52px;text-align:center;
  font-size:30px;font-weight:900;line-height:1;color:transparent;
  -webkit-text-stroke:1.4px rgba(255,194,51,.75);
  font-variant-numeric:tabular-nums;
}
.ep-no.sp{font-size:13px;-webkit-text-stroke:0;color:var(--red);letter-spacing:.04em;line-height:1.35}
.ep-body{min-width:0;flex:1}
.ep-date{display:block;font-size:11.5px;font-weight:800;letter-spacing:.14em;color:var(--dim2)}
.ep-guest{display:block;margin:3px 0 0;font-size:16.5px;font-weight:800;color:#fff;line-height:1.4}
.ep-tag{display:block;margin:4px 0 0;font-size:11.5px;color:var(--dim);line-height:1.5}
/* プレスリリースがある回の矢印 */
.ep-go{
  flex:none;align-self:center;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,194,51,.35);color:var(--amber);
  font-size:13px;font-weight:800;transition:.2s;
}
a.ep:hover .ep-go{background:var(--amber);border-color:var(--amber);color:#1a1204}
.pr-key{
  display:inline-flex;align-items:center;justify-content:center;
  width:22px;height:22px;border-radius:50%;vertical-align:-5px;
  border:1px solid rgba(255,194,51,.35);color:var(--amber);font-size:12px;font-weight:800;
}
.epcount{margin:24px 0 0;font-size:13px;color:var(--dim2)}
.epcount+.epcount{margin-top:4px}

/* ---------- 聴き方 / リンク ---------- */
.listen{display:grid;grid-template-columns:1.1fr .9fr;gap:20px;align-items:start}
.station{border:1px solid var(--line);border-radius:var(--r);background:var(--panel);padding:26px}
.station h3{font-size:16px;color:#fff}
.station ul{margin:16px 0 0;display:grid;gap:12px}
.station li{display:flex;gap:12px;font-size:14.5px;color:#c2c8d6;line-height:1.75}
.station li b{color:#fff;font-weight:800}
.station li::before{content:"";flex:none;width:6px;height:6px;margin-top:11px;border-radius:50%;
  background:var(--amber)}
.yt{border:1px solid var(--line);border-radius:var(--r);background:var(--panel);padding:26px}

/* 公式YouTube カード（旧スクショ画像の代わり） */
.ytcard{
  display:block;position:relative;overflow:hidden;color:inherit;
  background:
    radial-gradient(120% 100% at 100% 0,rgba(255,0,0,.16),transparent 62%),
    linear-gradient(150deg,var(--panel2),var(--ink2));
  padding:30px 28px;transition:transform .22s,border-color .22s;
}
.ytcard:hover{transform:translateY(-3px);border-color:rgba(255,60,50,.45);color:inherit}
.yt-play{display:block;width:64px;height:48px}
.yt-play svg{width:100%;height:100%;display:block;
  filter:drop-shadow(0 6px 20px rgba(255,0,0,.45))}
.yt-play svg rect{fill:#ff0033}
.yt-play svg .tri{fill:#fff}
.ytcard:hover .yt-play svg rect{fill:#ff2340}
.yt-k{display:block;margin:22px 0 0;font-size:11px;font-weight:800;letter-spacing:.2em;color:var(--dim2)}
.yt-h{display:block;margin:7px 0 0;font-size:24px;font-weight:900;color:#fff;letter-spacing:.01em}
.yt-d{display:block;margin:14px 0 0;font-size:14.5px;color:#bcc3d2;line-height:1.85}
.yt-go{display:inline-block;margin:20px 0 0;padding:11px 20px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.05);
  font-size:13.5px;font-weight:800;color:#fff}
.ytcard:hover .yt-go{background:rgba(255,255,255,.12)}

.contact{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:20px 0 0}
.contact>a,.contact>div{
  display:block;border:1px solid var(--line);border-radius:12px;background:var(--panel);
  padding:20px;transition:.2s;
}
.contact a:hover{border-color:rgba(255,194,51,.35);background:var(--panel2);transform:translateY(-2px)}
.contact .k{font-size:11px;font-weight:800;letter-spacing:.18em;color:var(--amber)}
.contact .v{margin:8px 0 0;font-size:15px;font-weight:800;color:#fff;word-break:break-all}
.contact .n{margin:6px 0 0;font-size:12.5px;color:var(--dim)}

/* ---------- フッター ---------- */
footer{border-top:1px solid var(--line2);padding:52px 0 60px;background:var(--ink2)}
.fnav{display:flex;flex-wrap:wrap;gap:8px 22px;margin:0 0 26px}
.fnav a{font-size:13px;font-weight:700;color:var(--dim)}
.fnav a:hover{color:#fff}
.copy{font-size:12px;color:var(--dim2);line-height:1.9}
.copy a{color:var(--dim)}

/* ---------- 出現アニメ ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- レスポンシブ ---------- */
@media(max-width:900px){
  .g3,.contact{grid-template-columns:repeat(2,1fr)}
  .cast{grid-template-columns:1fr}
  .portrait{max-width:300px}
  .listen{grid-template-columns:1fr}
  .sec{padding:76px 0}
}
@media(max-width:620px){
  body{font-size:15px}
  .wrap{padding:0 18px}
  .brand{font-size:11.5px}
  .navlinks{margin-left:8px}
  .g2,.g3,.contact{grid-template-columns:1fr}
  .hero{padding-top:44px}
  .hero-lead{font-size:15.5px}
  .wave{height:54px;margin-top:34px}
  .next{padding:24px 20px}
  .card,.station,.yt,.quote{padding:22px 20px}
  .sec{padding:64px 0}
  .eps{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .wave i,.onair i{animation:none}
  .wave i{transform:scaleY(.5)}
  .reveal{opacity:1;transform:none;transition:none}
}