/* ============================================================
   オカルトチャット — Glassmorphism & Soft Neon Noir
   ============================================================ */
:root{
  --bg:#0a0e16;
  --bg2:#0d1320;
  --panel:rgba(255,255,255,.035);
  --panel2:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.08);
  --line2:rgba(255,255,255,.14);
  --text:#e9edf4;
  --muted:#8b93a8;
  --dim:#5c6478;
  --accent:#e5484d;
  --accent2:#ff6b70;
  --accent-soft:rgba(229,72,77,.14);
  --recv:rgba(255,255,255,.055);
  --send:rgba(229,72,77,.13);
  --radius:16px;
  --sidebar-w:236px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Sans","Noto Sans JP",sans-serif;
  line-height:1.75;
  background-image:
    radial-gradient(900px 500px at 85% -80px,rgba(229,72,77,.07),transparent 60%),
    radial-gradient(700px 600px at -100px 40%,rgba(64,90,160,.08),transparent 60%);
  background-attachment:fixed;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.icon{width:17px;height:17px;flex:none;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* ---------- app shell ---------- */
.app{min-height:100vh}
.sidebar{
  position:fixed;inset:0 auto 0 0;width:var(--sidebar-w);z-index:40;
  display:flex;flex-direction:column;gap:6px;padding:20px 14px 24px;
  background:rgba(13,19,32,.72);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-right:1px solid var(--line);overflow-y:auto;
}
.logo{display:flex;align-items:center;gap:10px;padding:6px 8px 18px}
.logo-mark{
  width:38px;height:38px;flex:none;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--accent-soft);border:1px solid rgba(229,72,77,.35);color:var(--accent2);
  box-shadow:0 0 18px rgba(229,72,77,.25);
}
.logo-name{font-weight:800;letter-spacing:.04em;font-size:15px;line-height:1.3}
.logo-sub{font-size:10px;color:var(--muted);letter-spacing:.02em}
.nav{display:flex;flex-direction:column;gap:2px}
.nav a{
  display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:11px;
  font-size:13px;color:var(--muted);border:1px solid transparent;transition:.18s;
}
.nav a:hover{color:var(--text);background:var(--panel2)}
.nav a.current{
  color:var(--accent2);background:var(--accent-soft);border-color:rgba(229,72,77,.25);
  box-shadow:inset 2px 0 0 var(--accent);
}
.side-search{margin:16px 4px 0;position:relative}
.side-search input{
  width:100%;padding:9px 12px 9px 34px;border-radius:10px;font-size:12px;color:var(--text);
  background:var(--panel);border:1px solid var(--line);outline:none;
}
.side-search input::placeholder{color:var(--dim)}
.side-search .icon{position:absolute;left:10px;top:50%;transform:translateY(-50%);color:var(--dim);width:15px;height:15px}
.promo{
  margin:18px 4px 0;padding:18px 16px 20px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(229,72,77,.13),rgba(229,72,77,.03) 55%,transparent);
  border:1px solid rgba(229,72,77,.22);position:relative;overflow:hidden;
}
.promo::after{content:"";position:absolute;right:-30px;bottom:-30px;width:110px;height:110px;border-radius:50%;
  background:radial-gradient(circle,rgba(229,72,77,.25),transparent 70%)}
.promo strong{color:var(--accent2);font-size:14px;letter-spacing:.06em}
.promo p{margin:6px 0 0;font-size:11px;color:var(--muted)}

.main{margin-left:var(--sidebar-w);padding:22px 30px 90px}
.shell{max-width:1060px;margin:auto}

/* ---------- topbar ---------- */
.topbar{display:flex;align-items:center;justify-content:flex-end;gap:14px;padding:2px 0 20px}
.topbar .search-pill{
  display:flex;align-items:center;gap:8px;min-width:220px;padding:8px 14px;border-radius:999px;
  background:var(--panel);border:1px solid var(--line);color:var(--dim);font-size:12px;
}
.iconbtn{
  width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--panel);border:1px solid var(--line);color:var(--muted);
}
.avatar-chip{width:34px;height:34px;border-radius:50%;overflow:hidden;border:1px solid var(--line2);background:var(--panel2)}
.avatar-chip img{width:100%;height:100%;object-fit:cover}

/* SP topbar / tabbar */
.sp-top{display:none}
.tabbar{display:none}

/* ---------- hero ---------- */
.hero{
  position:relative;border-radius:22px;overflow:hidden;border:1px solid var(--line);
  min-height:340px;display:flex;align-items:center;
  box-shadow:0 22px 60px rgba(0,0,0,.45),0 0 0 1px rgba(255,255,255,.02);
}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:70% 40%}
.hero-veil{position:absolute;inset:0;background:
  linear-gradient(90deg,rgba(8,11,18,.94) 0%,rgba(8,11,18,.78) 38%,rgba(8,11,18,.18) 72%,rgba(8,11,18,.35) 100%)}
.hero-body{position:relative;z-index:2;padding:44px 46px;max-width:520px}
.hero h1{font-size:clamp(28px,4vw,44px);line-height:1.3;margin:0 0 14px;letter-spacing:.01em;font-weight:800;
  text-shadow:0 2px 24px rgba(0,0,0,.6)}
.hero p{margin:0 0 26px;font-size:14px;color:#c3c9d8;text-shadow:0 1px 12px rgba(0,0,0,.7)}
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:12px;
  font-size:13px;font-weight:700;letter-spacing:.02em;transition:.18s;border:1px solid transparent;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 24px rgba(229,72,77,.4)}
.btn-primary:hover{background:var(--accent2);transform:translateY(-1px)}
.btn-ghost{background:rgba(255,255,255,.07);border-color:var(--line2);color:var(--text);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);margin-left:10px}
.btn-ghost:hover{background:rgba(255,255,255,.12)}

/* ---------- sections ---------- */
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin:38px 0 16px}
.section-head h2{font-size:17px;margin:0;letter-spacing:.03em}
.more{font-size:12px;color:var(--muted)}
.more:hover{color:var(--accent2)}

/* story cards */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}
.card{
  border-radius:var(--radius);overflow:hidden;background:var(--panel);
  border:1px solid var(--line);transition:.22s;display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);border-color:rgba(229,72,77,.4);
  box-shadow:0 14px 40px rgba(0,0,0,.5),0 0 24px rgba(229,72,77,.12)}
.thumb{position:relative;aspect-ratio:3/4;overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover;transition:.4s}
.card:hover .thumb img{transform:scale(1.05)}
.thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(8,11,18,.85))}
.badge-new{
  position:absolute;top:10px;left:10px;z-index:2;font-size:9px;font-weight:800;letter-spacing:.1em;
  color:#fff;background:var(--accent);border-radius:6px;padding:3px 7px;
  box-shadow:0 2px 12px rgba(229,72,77,.5);
}
.thumb .genre{position:absolute;left:10px;bottom:10px;z-index:2}
.genre{
  display:inline-block;font-size:10px;color:var(--accent2);background:rgba(20,10,12,.7);
  border:1px solid rgba(229,72,77,.35);border-radius:999px;padding:3px 9px;
  backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);
}
.card-body{padding:12px 14px 14px;display:flex;flex-direction:column;gap:6px;flex:1}
.card-body h3{margin:0;font-size:14px;line-height:1.5;font-weight:700}
.card-meta{display:flex;align-items:center;gap:12px;margin-top:auto;font-size:11px;color:var(--dim)}
.card-meta .likes{display:inline-flex;align-items:center;gap:4px;color:var(--muted)}
.card-meta .likes .icon{width:13px;height:13px;color:var(--accent)}

/* ranking */
.ranking{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.rank-item{display:flex;align-items:center;gap:10px;padding:10px;border-radius:14px;
  background:var(--panel);border:1px solid var(--line);transition:.18s}
.rank-item:hover{border-color:rgba(229,72,77,.4);background:var(--panel2)}
.rank-num{font-size:22px;font-weight:800;font-style:italic;color:var(--dim);width:26px;text-align:center;flex:none}
.rank-item:first-child .rank-num{color:var(--accent2);text-shadow:0 0 14px rgba(229,72,77,.6)}
.rank-thumb{width:58px;height:44px;border-radius:9px;overflow:hidden;flex:none}
.rank-thumb img{width:100%;height:100%;object-fit:cover}
.rank-title{font-size:11px;line-height:1.45;color:var(--muted);overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}

.footer{margin-top:60px;padding-top:26px;border-top:1px solid var(--line);color:var(--dim);font-size:11px}

/* ============================================================
   エピソード詳細
   ============================================================ */
.detail-wrap{max-width:1100px;margin:auto;padding:22px 24px 90px}
.detail-page .progress{left:0;top:0}
.chat-tools .aa{font-size:11px;letter-spacing:.1em;color:var(--dim)}
.back-row{display:flex;align-items:center;justify-content:space-between;padding:2px 0 18px}
.back{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--muted)}
.back:hover{color:var(--text)}
.back-actions{display:flex;gap:10px}

.detail{display:grid;grid-template-columns:400px 1fr;gap:22px;align-items:start}
.story-info{position:sticky;top:22px;display:flex;flex-direction:column;gap:22px;
  padding:28px;border-radius:20px;background:var(--panel);border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.story-info h1{font-size:clamp(24px,2.6vw,32px);line-height:1.4;margin:10px 0 0;letter-spacing:.01em}
.hook{color:#b9c0d2;font-size:14px;margin:0}
.story-meta{display:flex;flex-wrap:wrap;gap:16px;font-size:12px;color:var(--muted)}
.story-meta span{display:inline-flex;align-items:center;gap:5px}
.story-meta .icon{width:14px;height:14px;color:var(--dim)}
.fav-btn{
  align-self:flex-start;display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:11px;
  font-size:12px;font-weight:700;color:var(--accent2);background:var(--accent-soft);
  border:1px solid rgba(229,72,77,.3);cursor:default;
}
.info-block h2{font-size:13px;letter-spacing:.14em;color:var(--accent2);margin:0 0 10px;font-weight:700}
.info-block p{margin:0;font-size:13px;color:#c0c6d6}
.people{display:flex;flex-direction:column;gap:12px;margin-top:2px}
.person{display:flex;align-items:center;gap:12px}
.person img,.person .sil{width:42px;height:42px;border-radius:50%;object-fit:cover;flex:none;
  border:1px solid var(--line2);background:var(--panel2)}
.person .sil{display:flex;align-items:center;justify-content:center;color:var(--dim)}
.person-name{font-size:13px;font-weight:700;line-height:1.4}
.person-desc{font-size:11px;color:var(--muted);line-height:1.5}

/* chat panel */
.chat-panel{border-radius:20px;overflow:hidden;background:rgba(13,19,32,.55);
  border:1px solid var(--line);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  display:flex;flex-direction:column}
.chat-head{display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 18px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.02)}
.chat-title{display:flex;align-items:center;gap:9px;font-size:13px;font-weight:700;min-width:0}
.chat-title .hash{color:var(--accent2);font-weight:800}
.chat-title span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chat-tools{display:flex;gap:8px;color:var(--dim)}
.chat-body{padding:22px 18px 10px}
.chat-date{display:table;margin:0 auto 26px;font-size:10px;color:var(--muted);
  background:var(--panel2);border:1px solid var(--line);border-radius:999px;padding:5px 14px}

.msg-row{display:flex;margin:0 0 16px;gap:9px}
.msg-row.right{justify-content:flex-end}
.msg-row.system{justify-content:center;margin:22px 0}
.msg-row .avatar{width:34px;height:34px;border-radius:50%;object-fit:cover;flex:none;margin-top:2px;
  border:1px solid var(--line2);background:var(--panel2)}
.msg{max-width:72%;min-width:0}
.sender{font-size:10px;color:var(--muted);margin:0 0 4px 4px}
.bubble{
  background:var(--recv);border:1px solid var(--line);border-radius:4px 15px 15px 15px;
  padding:10px 14px;font-size:13.5px;line-height:1.7;
}
.right .bubble{
  background:var(--send);border-color:rgba(229,72,77,.28);border-radius:15px 4px 15px 15px;
}
.stamp{font-size:9px;color:var(--dim);margin:4px 4px 0}
.right .stamp{text-align:right}
.system-pill{font-size:10px;color:var(--muted);background:rgba(255,255,255,.04);
  border:1px solid var(--line);border-radius:999px;padding:6px 13px;text-align:center}
.image-bubble{width:min(320px,74vw);background:rgba(255,255,255,.04);border:1px solid var(--line2);
  border-radius:4px 15px 15px 15px;overflow:hidden}
.fake-image{height:185px;display:flex;align-items:flex-end;padding:13px;color:var(--dim);font-size:11px;
  background:radial-gradient(circle at 62% 42%,#3a3a48 0 3%,transparent 4%),
             linear-gradient(180deg,#1b2130,#0a0d15)}
.image-caption{padding:10px 13px;font-size:12px;color:#aab1c2}
.endmark{text-align:center;padding:40px 0 20px;color:var(--dim);font-size:10px;letter-spacing:.22em}

.chat-input{display:flex;align-items:center;gap:12px;margin:0 18px 18px;padding:11px 16px;
  border-radius:999px;background:rgba(255,255,255,.045);border:1px solid var(--line)}
.chat-input span{flex:1;font-size:12px;color:var(--dim)}
.chat-input .icon{color:var(--accent)}

/* after story */
.after-story{margin:26px 0 0}
.after-story h3{font-size:15px;margin:0 0 6px}
.after-story p{font-size:12px;color:var(--muted);margin:0}
.audio{margin-top:10px;font-size:11px;color:var(--dim)}
.next-card{display:block;margin-top:20px;padding:20px;border-radius:16px;
  background:var(--panel);border:1px solid var(--line);transition:.18s}
.next-card:hover{border-color:rgba(229,72,77,.4);background:var(--panel2)}
.next-card small{color:var(--accent2);font-size:11px;letter-spacing:.08em}
.next-card strong{display:block;margin-top:5px;font-size:15px}

.progress{position:fixed;top:0;left:var(--sidebar-w);right:0;height:2px;background:var(--accent);
  width:0;z-index:50;box-shadow:0 0 10px rgba(229,72,77,.7)}

/* ---------- reveal animation ---------- */
.js .msg-row.reveal{opacity:0;transform:translateY(24px) scale(.985);filter:blur(2px);
  transition:opacity .55s cubic-bezier(.2,.8,.2,1),transform .55s cubic-bezier(.2,.8,.2,1),filter .55s ease}
.js .msg-row.reveal.left{transform:translate(-12px,24px) scale(.985)}
.js .msg-row.reveal.right{transform:translate(12px,24px) scale(.985)}
.js .msg-row.reveal.system{transform:translateY(14px) scale(.94)}
.js .msg-row.reveal.visible{opacity:1;transform:translate(0,0) scale(1);filter:blur(0)}

/* ============================================================
   レスポンシブ
   ============================================================ */
@media(max-width:1099px){
  .sidebar{display:none}
  .main{margin-left:0;padding:70px 16px 96px}
  .topbar{display:none}
  .progress{left:0;top:56px}
  .sp-top{
    display:flex;position:fixed;inset:0 0 auto 0;height:56px;z-index:45;
    align-items:center;gap:12px;padding:0 16px;
    background:rgba(10,14,22,.85);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
  }
  .sp-top .logo-mark{width:30px;height:30px;border-radius:9px}
  .sp-top .logo-name{font-size:13px}
  .sp-top .logo-sub{font-size:9px}
  .sp-top .spacer{flex:1}
  .tabbar{
    display:flex;position:fixed;inset:auto 0 0 0;z-index:45;
    background:rgba(10,14,22,.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    border-top:1px solid var(--line);padding:7px 6px calc(7px + env(safe-area-inset-bottom));
  }
  .tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;
    font-size:9px;color:var(--dim)}
  .tabbar a.current{color:var(--accent2)}
  .hero{min-height:300px}
  .hero-body{padding:30px 24px}
  .hero-veil{background:linear-gradient(90deg,rgba(8,11,18,.92) 0%,rgba(8,11,18,.65) 55%,rgba(8,11,18,.3) 100%)}
  .detail{grid-template-columns:1fr}
  .story-info{position:static}
}
@media(max-width:760px){
  .cards{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(170px,62%);
    overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;
    scrollbar-width:none}
  .cards::-webkit-scrollbar{display:none}
  .card{scroll-snap-align:start}
  .ranking{grid-template-columns:1fr;gap:10px}
  .hero h1{font-size:26px}
  .hero p{font-size:13px}
  .btn{padding:10px 18px;font-size:12px}
  .msg{max-width:82%}
  .chat-body{padding:18px 12px 8px}
  .story-info{padding:22px 18px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .msg-row.reveal{opacity:1!important;transform:none!important;filter:none!important;transition:none!important}
  .card,.thumb img,.btn{transition:none!important}
}