/* ===================================================================
   Cayri Chat – UI  (v2.1)
   Dunkles Premium-Layout: Tiefe durch Verläufe, Glas-Panels, sanfte
   Bewegungen. Akzent: Smaragd-Teal. Klassennamen unverändert.
   =================================================================== */
:root{
  --bg:#090f14; --bg-2:#0b141a;
  --panel:#101a21; --panel-2:#16222b; --panel-3:#1f2e38;
  --line:rgba(134,150,160,.14); --line-strong:rgba(134,150,160,.26);
  --text:#e9edef; --muted:#8696a0;
  --accent:#00a884; --accent-2:#06cf9c;
  --bubble-me:linear-gradient(135deg,#00604e,#005c4b 60%,#01493c);
  --bubble-them:#1d2b35;
  --danger:#f15c6d; --ok:#06cf9c;
  --shadow:0 18px 50px rgba(0,0,0,.5);
  --shadow-soft:0 6px 22px rgba(0,0,0,.35);
  --r-lg:20px; --r-md:14px; --r-sm:10px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,system-ui,sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;font-family:var(--font);background:var(--bg);color:var(--text);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow:hidden;
}
.hidden{display:none !important}
.screen{height:100dvh;width:100%}
::selection{background:rgba(6,207,156,.3)}

/* Scrollbars */
*::-webkit-scrollbar{width:8px;height:8px}
*::-webkit-scrollbar-thumb{background:var(--panel-3);border-radius:8px}
*::-webkit-scrollbar-thumb:hover{background:#2c4150}
*::-webkit-scrollbar-track{background:transparent}

@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@keyframes pop{0%{opacity:0;transform:scale(.96)}100%{opacity:1;transform:scale(1)}}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(6,207,156,.35)}70%{box-shadow:0 0 0 7px rgba(6,207,156,0)}100%{box-shadow:0 0 0 0 rgba(6,207,156,0)}}
@media (prefers-reduced-motion:reduce){*{animation:none !important;transition:none !important}}

/* ---------- AUTH ---------- */
.auth{display:grid;place-items:center;position:relative;
  background:
    radial-gradient(1300px 700px at 15% -12%, rgba(0,168,132,.20), transparent 60%),
    radial-gradient(1000px 600px at 112% 112%, rgba(6,207,156,.13), transparent 55%),
    radial-gradient(700px 500px at 85% 10%, rgba(0,90,120,.10), transparent 60%),
    var(--bg);
}
.auth::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='52' height='52'><circle cx='2' cy='2' r='1' fill='%231b2a33'/></svg>");
  opacity:.5;mask-image:radial-gradient(80% 70% at 50% 40%, #000, transparent)}
.auth-card{width:min(92vw,410px);background:linear-gradient(180deg,rgba(22,34,43,.92),rgba(16,26,33,.92));
  backdrop-filter:blur(14px);border:1px solid var(--line-strong);
  border-radius:var(--r-lg);padding:34px 30px;box-shadow:var(--shadow);
  animation:pop .35s cubic-bezier(.2,.8,.3,1);position:relative;z-index:1}
.brand{display:flex;align-items:center;gap:13px}
.brand .logo{font-size:36px;filter:drop-shadow(0 4px 14px rgba(0,168,132,.45))}
.brand h1{font-size:25px;margin:0;letter-spacing:-.02em}
.tagline{color:var(--muted);margin:7px 0 22px;font-size:13.5px;display:flex;align-items:center;gap:7px}
.tagline::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent-2);
  box-shadow:0 0 8px rgba(6,207,156,.8);flex:0 0 auto}
.tabs{display:flex;background:rgba(0,0,0,.25);border:1px solid var(--line);border-radius:13px;padding:4px;margin-bottom:18px}
.tab{flex:1;border:0;background:transparent;color:var(--muted);padding:9px;border-radius:10px;
  font-weight:600;cursor:pointer;font-size:14px;transition:.18s}
.tab.active{background:linear-gradient(180deg,var(--panel-3),#1a2934);color:var(--text);box-shadow:var(--shadow-soft)}
.auth-form{display:flex;flex-direction:column;gap:12px;animation:fadeUp .25s ease}
input,textarea{background:rgba(0,0,0,.28);border:1px solid var(--line);color:var(--text);
  border-radius:var(--r-md);padding:13px 15px;font-size:15px;font-family:inherit;outline:none;width:100%;
  transition:border-color .18s, box-shadow .18s}
input::placeholder{color:#5c6b75}
input:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(0,168,132,.18)}
.primary{background:linear-gradient(135deg,var(--accent-2),var(--accent));color:#03241d;border:0;
  border-radius:var(--r-md);padding:13px;font-weight:800;font-size:15px;cursor:pointer;
  transition:transform .12s, filter .15s, box-shadow .2s;box-shadow:0 8px 22px rgba(0,168,132,.28)}
.primary:hover{filter:brightness(1.06);box-shadow:0 10px 26px rgba(0,168,132,.36)}
.primary:active{transform:translateY(1px) scale(.99)}
.link{background:none;border:0;color:var(--muted);cursor:pointer;font-size:13.5px;padding:6px;border-radius:8px}
.link:hover{color:var(--text)}
.hint{color:var(--muted);font-size:12px;line-height:1.55;margin:4px 0 0}
.error{color:var(--danger);font-size:13px;margin-top:10px;min-height:18px}

/* Passwortstärke */
.pw-meter{height:6px;border-radius:6px;background:rgba(255,255,255,.07);overflow:hidden;margin-top:-4px}
.pw-meter>i{display:block;height:100%;width:0;border-radius:6px;transition:width .25s, background .25s}
.pw-meter[data-level="1"]>i{width:25%;background:#f15c6d}
.pw-meter[data-level="2"]>i{width:50%;background:#f0a04b}
.pw-meter[data-level="3"]>i{width:75%;background:#e7d35a}
.pw-meter[data-level="4"]>i{width:100%;background:var(--ok)}
.pw-label{font-size:11.5px;color:var(--muted);margin-top:-6px;min-height:14px}

/* ---------- APP LAYOUT ---------- */
.app{display:grid;grid-template-columns:minmax(300px,380px) 1fr;background:var(--bg-2)}
.sidebar{background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0}
.me-bar{display:flex;align-items:center;gap:12px;padding:12px 14px;
  background:linear-gradient(180deg,var(--panel-2),rgba(22,34,43,.6));border-bottom:1px solid var(--line)}
.me-info{flex:1;min-width:0;display:flex;flex-direction:column}
.me-info strong{font-size:15px}
.me-info small{color:var(--muted);font-size:12px;font-family:var(--mono);letter-spacing:.5px;cursor:pointer;
  display:inline-flex;align-items:center;gap:5px}
.me-info small:hover{color:var(--accent-2)}
.icon{background:none;border:0;color:var(--muted);font-size:19px;cursor:pointer;width:40px;height:40px;
  border-radius:50%;display:grid;place-items:center;transition:.16s}
.icon:hover{background:var(--panel-3);color:var(--text)}
.search-row{padding:10px 12px;border-bottom:1px solid var(--line)}
.add-friend{width:100%;background:rgba(0,168,132,.07);border:1px dashed rgba(0,168,132,.4);color:var(--accent-2);
  padding:11px;border-radius:var(--r-md);cursor:pointer;font-weight:700;font-size:14px;transition:.18s}
.add-friend:hover{background:rgba(0,168,132,.13);border-style:solid}

/* avatar */
.avatar{width:46px;height:46px;border-radius:50%;flex:0 0 auto;display:grid;place-items:center;
  font-weight:700;color:#fff;background:var(--panel-3);background-size:cover;background-position:center;
  overflow:hidden;border:1px solid rgba(255,255,255,.06)}
.avatar.big{width:96px;height:96px;font-size:34px;margin:6px auto}

/* requests */
.requests{display:flex;flex-direction:column}
.request{display:flex;align-items:center;gap:10px;padding:12px 14px;
  background:linear-gradient(90deg,rgba(0,168,132,.12),rgba(0,168,132,.04));
  border-bottom:1px solid var(--line);animation:fadeUp .25s ease}
.request .txt{flex:1;font-size:13.5px}
.request .txt b{display:block}
.request .txt span{color:var(--muted);font-family:var(--mono);font-size:11.5px}
.request button{border:0;border-radius:9px;padding:7px 11px;font-size:13px;cursor:pointer;font-weight:700;transition:.15s}
.req-yes{background:var(--accent);color:#03241d}
.req-yes:hover{background:var(--accent-2)}
.req-no{background:var(--panel-3);color:var(--muted)}
.req-no:hover{color:var(--text)}

/* friends list */
.friends{flex:1;overflow-y:auto;min-height:0;padding:4px 0}
.friend{display:flex;align-items:center;gap:12px;padding:11px 14px;cursor:pointer;
  border-left:3px solid transparent;transition:background .15s}
.friend:hover{background:var(--panel-2)}
.friend.active{background:var(--panel-3);border-left-color:var(--accent)}
.friend .info{flex:1;min-width:0}
.friend .info strong{font-size:15px;display:flex;align-items:center;gap:6px}
.friend .info small{color:var(--muted);font-size:12.5px}
.dot{width:9px;height:9px;border-radius:50%;background:#54656f;flex:0 0 auto;transition:.2s}
.dot.on{background:var(--accent-2);animation:pulse 2.4s infinite}

/* verifiziert-Badge */
.vbadge{color:var(--accent-2);font-size:13px;line-height:1}

/* ---------- CHAT ---------- */
.chat{position:relative;display:flex;flex-direction:column;min-width:0;
  background:
    linear-gradient(rgba(9,15,20,.93),rgba(9,15,20,.96)),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='44' height='44'><circle cx='2' cy='2' r='1' fill='%231d2c36'/></svg>")}
.empty{margin:auto;text-align:center;color:var(--muted);animation:fadeUp .3s ease}
.empty-icon{font-size:56px;filter:drop-shadow(0 6px 18px rgba(0,168,132,.25))}
.empty p{font-size:17px;color:var(--text);margin:12px 0 4px}
.conv{display:flex;flex-direction:column;height:100%;min-height:0}
.conv-head{display:flex;align-items:center;gap:12px;padding:10px 14px;
  background:linear-gradient(180deg,var(--panel-2),rgba(22,34,43,.75));
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.conv-head .back{display:none}
.conv-title{flex:1;min-width:0}
.conv-title strong{font-size:15.5px;display:flex;align-items:center;gap:6px}
.conv-title small{color:var(--muted);font-size:12.5px}
.conv-head #btn-verify{margin-left:auto}
.conv-head #btn-verify.verified{color:var(--accent-2)}

/* E2E-Hinweis-Chip am Gesprächsanfang */
.e2e-chip{align-self:center;margin:4px 0 10px;max-width:min(86%,480px);text-align:center;
  background:rgba(0,168,132,.10);border:1px solid rgba(0,168,132,.25);color:#bfe9dd;
  font-size:12px;line-height:1.5;padding:8px 14px;border-radius:12px}

.messages{flex:1;overflow-y:auto;padding:18px 9% 12px;display:flex;flex-direction:column;gap:4px;scroll-behavior:smooth}
.bubble{max-width:min(72%,560px);padding:8px 12px 6px;border-radius:14px;font-size:14.5px;line-height:1.45;
  position:relative;word-wrap:break-word;white-space:pre-wrap;box-shadow:0 1px 2px rgba(0,0,0,.25);
  animation:fadeUp .18s ease}
.bubble.them{background:var(--bubble-them);align-self:flex-start;border-bottom-left-radius:5px}
.bubble.me{background:var(--bubble-me);align-self:flex-end;border-bottom-right-radius:5px}
.bubble .time{font-size:10.5px;color:rgba(233,237,239,.55);margin-left:10px;float:right;margin-top:6px}
.bubble img{max-width:100%;border-radius:10px;display:block;margin-bottom:4px}
.bubble .file{display:flex;align-items:center;gap:10px}
.bubble .file .fi{font-size:24px}
.bubble a.dl{color:var(--accent-2);text-decoration:none;font-weight:700}
.bubble a.dl:hover{text-decoration:underline}

.composer{display:flex;align-items:flex-end;gap:8px;padding:10px 14px;
  background:linear-gradient(0deg,var(--panel-2),rgba(22,34,43,.85));border-top:1px solid var(--line)}
.composer textarea{flex:1;resize:none;max-height:120px;border-radius:22px;padding:11px 16px}
.icon.send{background:linear-gradient(135deg,var(--accent-2),var(--accent));color:#03241d;box-shadow:0 6px 16px rgba(0,168,132,.3)}
.icon.send:hover{filter:brightness(1.07)}

/* ---------- MODALS / TOAST ---------- */
.modal{position:fixed;inset:0;background:rgba(2,6,10,.6);backdrop-filter:blur(4px);
  display:grid;place-items:center;z-index:50;animation:pop .18s ease}
.modal-card{width:min(92vw,392px);background:linear-gradient(180deg,var(--panel-2),var(--panel));
  border:1px solid var(--line-strong);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:10px}
.modal-card h3{margin:0;font-size:18px}
.modal-card label{font-size:12.5px;color:var(--muted);margin-top:6px}
.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:8px}
.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%);
  background:rgba(31,46,56,.96);border:1px solid var(--line-strong);
  color:var(--text);padding:13px 20px;border-radius:13px;box-shadow:var(--shadow);z-index:60;font-size:14px;
  max-width:90vw;text-align:center;animation:fadeUp .22s ease}

/* Sicherheitsnummer */
.safety-number{
  font-family:var(--mono);font-size:19px;letter-spacing:1px;line-height:1.7;
  text-align:center;background:rgba(0,168,132,.07);
  border:1px solid rgba(0,168,132,.3);border-radius:var(--r-md);
  padding:14px;margin:10px 0;word-spacing:6px;user-select:all}
.verify-state{display:flex;align-items:center;justify-content:center;gap:7px;
  font-size:13px;color:var(--accent-2);min-height:18px;font-weight:600}

/* ---------- MOBILE ---------- */
@media (max-width:780px){
  .app{grid-template-columns:1fr}
  .chat{position:absolute;inset:0;z-index:5;transform:translateX(100%);transition:transform .26s cubic-bezier(.3,.8,.3,1)}
  .app.show-chat .chat{transform:translateX(0)}
  .conv-head .back{display:grid}
  .messages{padding:14px 4% 10px}
  .bubble{max-width:84%}
  .auth-card{padding:28px 22px}
}
.req-avatar{width:38px;height:38px;font-size:13px}
.friends-empty{padding:26px 18px;color:var(--muted);font-size:14px;text-align:center;line-height:1.6}

.push-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:6px 0 10px}
.push-row small{color:var(--muted);font-size:12px}