:root{--railW:340px;--line:#232c47;--ink:#ecf2ff;--muted:#a8b7de;--kb:0px;--dockH:120px;--mHeadH:0px}
*{box-sizing:border-box}
html,body{height:100%}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;color:var(--ink);
  font:15.5px/1.6 ui-sans-serif,system-ui,Segoe UI,Roboto,Arial;
  background:
    radial-gradient(1400px 600px at 80% -10%, rgba(94,44,255,.35) 0%, transparent 60%),
    radial-gradient(900px 400px at -10% 90%, rgba(255,122,24,.25) 0%, transparent 60%),
    linear-gradient(160deg,#0a0b13 15%,#0e1220 85%);
  -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden
}

a{color:inherit;text-decoration:none}
a.mmb{
  color:var(--ink) !important;
  border-bottom:1px dashed rgba(207,224,255,.65);
  text-underline-offset:2px;
  transition:opacity .2s ease,border-color .2s ease
}
a.mmb:visited{color:var(--ink) !important}
a.mmb:hover{opacity:1;border-color:#cfe0ff}

.rail{
  position:fixed;inset:0 auto 0 0;width:var(--railW);padding:26px 22px 72px;
  background:linear-gradient(180deg, rgba(10,11,19,.75), rgba(10,11,19,.35));
  border-right:1px solid var(--line);backdrop-filter:blur(10px) saturate(120%); z-index:10
}
.brand{display:flex;align-items:center;gap:16px;margin-bottom:10px}
.brand img{
  width:150px;height:150px;border-radius:20px;object-fit:cover;
  box-shadow:0 0 0 1px var(--line) inset,0 8px 26px rgba(0,0,0,.38)
}
.brand h1{margin:0;font-size:25px;letter-spacing:.35px;line-height:1.15;white-space:nowrap}
.tag{color:var(--muted);font-size:12px;margin-top:6px}
.footer{position:absolute;left:22px;right:22px;bottom:18px;color:#b7c6ee;font-size:12px;opacity:.95}
.footer-mobile{display:none}

/* yeni: ray içi kartlar */
.rail-cards{display:flex;flex-direction:column;gap:12px;margin-top:14px}
.rcard{
  background:linear-gradient(180deg, rgba(16,20,37,.75), rgba(16,20,37,.55));
  border:1px solid var(--line);
  border-radius:14px;
  padding:12px 12px 10px;
  box-shadow:0 10px 28px rgba(0,0,0,.28)
}
.rtitle{font-size:12px;letter-spacing:.4px;color:#b9c6ea;margin-bottom:8px;text-transform:uppercase}
.rbadge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 10px;border-radius:999px;font-size:12px;
  border:1px solid #2b3a69;background:#121a33;color:#cfe0ff
}
.rbadge.on::before{
  content:"";width:8px;height:8px;border-radius:999px;background:#2fdf84;box-shadow:0 0 0 3px rgba(47,223,132,.18)
}
.rlist{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.rlist li{
  font-size:13px;color:#d7e4ff;background:#0f162c;border:1px solid #2a3558;
  padding:8px 10px;border-radius:10px
}
.rchips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  font-size:12px;padding:6px 10px;border-radius:999px;border:1px solid #2a3558;
  background:#0f162c;color:#cfe0ff
}

.stage{margin-left:var(--railW);padding:26px 20px calc(160px + var(--kb)); position:relative; z-index:1}
.chatwrap{
  max-width:880px;margin:0 auto;background:rgba(16,20,37,.78);
  border:1px solid var(--line);
  border-radius:20px;
  box-shadow:0 22px 72px rgba(0,0,0,.38);
  display:flex;flex-direction:column;min-height:420px;
  backdrop-filter:blur(6px); position:relative; overflow:hidden
}
@media (min-width:981px){
  .chatwrap::before{
    content:""; position:absolute; inset:-1px; border-radius:inherit; z-index:-1;
    background:conic-gradient(from var(--a,0deg), #6b4dff, #ff7a18, #6b4dff);
    -webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite:xor; mask-composite:exclude; padding:1px; opacity:.28; filter:saturate(130%);
    animation:spin 9.5s linear infinite
  }
  .chatwrap:hover::before{opacity:.45}
  @keyframes spin{to{--a:360deg}}
}

.titlebar{
  height:58px;display:flex;align-items:center;gap:10px;padding:0 16px;
  background:linear-gradient(180deg, rgba(16,20,37,.62), rgba(16,20,37,.36));
  border-bottom:1px solid var(--line); position:relative
}
.titlebar h3{margin:0;font-size:15px;letter-spacing:.2px;color:#cfe0ff}
@media (min-width:981px){
  .titlebar::after{content:""; position:absolute; left:16px; right:16px; bottom:0; height:1px; background:linear-gradient(90deg,transparent,rgba(255,255,255,.25),transparent)}
}
.about-btn{
  margin-left:auto;border:1px solid var(--line);
  background:#141a2d;color:#cfe0ff;border-radius:12px;
  padding:8px 12px;display:inline-flex;align-items:center;gap:8px;cursor:pointer;
  transition:transform .08s ease, box-shadow .15s ease, background .15s ease
}
.about-btn:hover{box-shadow:0 8px 28px rgba(0,0,0,.28);background:#161d34}
.about-btn:active{transform:scale(.985)}

.chat-area{
  height:calc(100vh - var(--dockH) - 66px);
  overflow:auto;-webkit-overflow-scrolling:touch;
  padding:16px 18px 44px;
  scrollbar-width:thin;scrollbar-color:#3a4568 transparent
}
.chat-area::-webkit-scrollbar{width:10px}
.chat-area::-webkit-scrollbar-thumb{background:#323d5f;border-radius:10px;border:2px solid transparent;background-clip:content-box}

.msg{display:flex;gap:12px;margin:14px 10px;align-items:flex-start}
.avatar{
  width:36px;height:36px;border-radius:10px;object-fit:cover;flex:0 0 36px;margin-top:2px;
  box-shadow:0 0 0 1px var(--line) inset
}
.bubble{
  max-width:720px;padding:12px 14px;border-radius:14px;border:1px solid var(--line);
  white-space:pre-wrap;background:linear-gradient(180deg,#0f1628,#0d1323);
  transition:transform .08s ease, box-shadow .15s ease
}
.msg.user .bubble{
  margin-left:46px;background:linear-gradient(180deg,#121b34,#0f172c);border-color:#2a3558
}
.msg .bubble:hover{box-shadow:0 10px 24px rgba(0,0,0,.22)}
.msg .bubble:active{transform:scale(.995)}

.dock{
  position:fixed;left:calc(var(--railW) + 20px);right:20px;bottom:calc(20px + var(--kb));z-index:60;display:flex;justify-content:center
}
.dock .box{
  width:min(880px,calc(100% - (var(--railW) + 40px)));
  background:linear-gradient(180deg,rgba(16,20,37,.78),rgba(16,20,37,.62));
  border:1px solid var(--line);border-radius:16px;
  box-shadow:0 14px 40px rgba(0,0,0,.45);
  padding:10px;display:flex;gap:10px;backdrop-filter:blur(6px) saturate(120%)
}
textarea{
  flex:1;resize:none;min-height:56px;max-height:38vh;background:transparent;
  color:#cfe1ff;border:0;outline:none;padding:10px 12px;font-size:16px;line-height:1.4
}
textarea::placeholder{color:#9fb0d9;opacity:.85}
.send{
  min-width:56px;min-height:56px;border-radius:12px;border:0;cursor:pointer;
  color:#0c0f14;background:linear-gradient(135deg,#5e2cff,#ff7a18);font-weight:700;
  transition:transform .06s ease, filter .15s ease, box-shadow .15s ease
}
.send:hover{filter:brightness(1.05);box-shadow:0 10px 26px rgba(0,0,0,.35)}
.send:active{transform:translateY(1px)}

.pop{position:fixed;inset:0;display:none;align-items:center;justify-content:center;background:rgba(4,6,12,.55);backdrop-filter:blur(6px);z-index:80}
.pop.show{display:flex}
.card{width:min(640px,92%);background:#0f1426;border:1px solid var(--line);border-radius:18px;box-shadow:0 20px 70px rgba(0,0,0,.55);padding:18px 18px 14px}
.card h4{margin:0 0 8px 0;color:#e6eeff}
.card ul{margin:8px 0 0 18px;color:#b9c6ea}
.card li{margin:6px 0}
.close{margin-top:14px;display:flex;justify-content:flex-end}
.close button{border:0;border-radius:10px;background:#1c2440;color:#e2ebff;padding:8px 14px;cursor:pointer}

.mheader{display:none}
.mheader-inner{
  display:flex;align-items:center;gap:12px;padding:10px 14px;
  background:linear-gradient(180deg, rgba(10,11,19,.95), rgba(10,11,19,.72));
  border-bottom:1px solid var(--line);backdrop-filter:blur(8px)
}
.mh-img{width:72px;height:72px;border-radius:14px;object-fit:cover;box-shadow:0 0 0 1px var(--line) inset}
.mh-text{display:flex;flex-direction:column;line-height:1.1}
.mh-title{font-size:20px;letter-spacing:.3px}
.mh-sub{font-size:12px;color:#b7c6ee;margin-top:4px}
.mh-foot{font-size:12px;color:#cfe0ff;margin-top:4px}

@media (max-width:980px){
  .rail{display:none}
  .mheader{display:block;position:fixed;top:0;left:0;right:0;z-index:120}
  body{padding-top:calc(var(--mHeadH) + env(safe-area-inset-top,0))}
  .stage{margin-left:0;padding:12px 14px calc(160px + var(--kb))}
  .chatwrap{border-radius:14px}
  .chat-area{height:calc(100vh - var(--mHeadH) - var(--dockH) - 28px)}
  .dock{left:14px;right:14px}
  .dock .box{width:100%}
  .footer-mobile{display:block}
}