:root{
  --bg:#0b0b0b; --bg2:#121212; --panel:#171717; --panel2:#1e1e1e; --line:#2a2a2a;
  --gold:#8fcbf0; --gold2:#5fb2e6; --gold-soft:rgba(143,203,240,.14);
  --text:#eef3f6; --muted:#8e979d; --danger:#e5534b; --ok:#4cc38a;
  --me:#14293a; --them:#1d1d1d; --radius:14px; --on-accent:#06131c;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--text)}
body{overflow:hidden;-webkit-font-smoothing:antialiased}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
input,textarea,select{font:inherit;color:var(--text);background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:11px 12px;outline:none;width:100%}
input:focus,textarea:focus,select:focus{border-color:var(--gold)}
a{color:var(--gold)}
.hidden{display:none!important}
.btn{background:linear-gradient(180deg,var(--gold),var(--gold2));color:var(--on-accent);font-weight:700;border-radius:12px;padding:12px 16px;width:100%}
.btn:disabled{opacity:.5}
.btn.ghost{background:transparent;color:var(--gold);border:1px solid var(--gold)}
.btn.danger{background:var(--danger);color:#fff}
.icon-btn{width:40px;height:40px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:var(--gold);flex:none}
.icon-btn:hover{background:var(--gold-soft)}
.icon-btn svg{width:22px;height:22px}
.muted{color:var(--muted)}
.small{font-size:12.5px}

/* Auth */
#auth{height:100%;display:flex;align-items:center;justify-content:center;padding:24px;overflow-y:auto;background:radial-gradient(ellipse at top,#0e1c26 0%,var(--bg) 60%)}
.auth-card{width:100%;max-width:380px;text-align:center;margin:auto}
.auth-card img{width:96px;height:96px;border-radius:22px;box-shadow:0 0 40px rgba(143,203,240,.25)}
.auth-card h1{margin:14px 0 2px;font-size:28px;letter-spacing:.3px}
.auth-card h1 span{color:var(--gold)}
.tabs{display:flex;margin:22px 0 14px;background:var(--panel);border-radius:12px;padding:4px}
.tabs button{flex:1;padding:9px;border-radius:9px;color:var(--muted)}
.tabs button.active{background:var(--panel2);color:var(--gold)}
.form{display:flex;flex-direction:column;gap:10px;text-align:left}
.form label{font-size:12.5px;color:var(--muted);margin-bottom:-6px}
.form label.terms{display:flex;gap:10px;align-items:flex-start;margin:4px 0 0;font-size:13px;color:var(--text);line-height:1.4;cursor:pointer}
.form label.terms input{width:18px;height:18px;flex:none;margin:1px 0 0;accent-color:var(--gold)}
.err{color:var(--danger);font-size:13px;min-height:18px}
.mode-pill{display:inline-block;margin-top:16px;font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:20px;padding:5px 12px}
.legal-links{margin-top:14px}
.copyright{margin-top:8px;font-size:11px;color:var(--muted);line-height:1.5}

/* Main layout */
#main{height:100%;display:flex}
#sidebar{width:360px;max-width:100%;background:var(--bg2);border-right:1px solid var(--line);display:flex;flex-direction:column;position:relative}
.side-head{display:flex;align-items:center;gap:8px;padding:12px 12px 8px}
.side-head img{width:34px;height:34px;border-radius:9px}
.side-head .title{font-weight:700;font-size:19px;flex:1}
.side-head .title span{color:var(--gold)}
.search{padding:4px 12px 10px}
.search input{border-radius:20px;padding:9px 14px;background:var(--panel)}
#chatList{flex:1;overflow-y:auto}
.chat-item{display:flex;gap:12px;align-items:center;padding:10px 14px;cursor:pointer;border-bottom:1px solid #161616}
.chat-item:hover{background:var(--panel)}
.chat-item.active{background:var(--panel2)}
.chat-item .meta{flex:1;min-width:0}
.chat-item .row{display:flex;justify-content:space-between;gap:8px}
.chat-item .name{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chat-item .time{font-size:12px;color:var(--muted);flex:none}
.chat-item .last{font-size:13.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.badge{background:var(--gold);color:var(--on-accent);border-radius:10px;font-size:11.5px;font-weight:700;padding:1px 7px}
.avatar{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,#123044,#0a1820);color:var(--gold);display:flex;align-items:center;justify-content:center;font-weight:700;flex:none;border:1px solid #1f4258;overflow:hidden}
.avatar.sm{width:36px;height:36px;font-size:14px}
.empty{padding:40px 24px;text-align:center;color:var(--muted)}
.fab{position:absolute;right:18px;bottom:18px;width:54px;height:54px;border-radius:16px;background:linear-gradient(180deg,var(--gold),var(--gold2));color:var(--on-accent);display:flex;align-items:center;justify-content:center;box-shadow:0 6px 20px rgba(0,0,0,.5)}
.fab svg{width:26px;height:26px}

#conv{flex:1;display:flex;flex-direction:column;min-width:0;background:var(--bg)}
#convEmpty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--muted);gap:12px;text-align:center;padding:20px}
#convEmpty img{width:120px;opacity:.9;border-radius:26px}
.conv-head{display:flex;align-items:center;gap:10px;padding:8px 10px;background:var(--bg2);border-bottom:1px solid var(--line)}
.conv-head .info{flex:1;min-width:0;cursor:pointer}
.conv-head .info .name{font-weight:600}
.conv-head .info .sub{font-size:12.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#backBtn{display:none}
#messages{flex:1;overflow-y:auto;padding:16px 6%;display:flex;flex-direction:column;gap:4px;
  background-image:radial-gradient(rgba(143,203,240,.035) 1px,transparent 1px);background-size:22px 22px}
.day-sep{align-self:center;background:var(--panel);color:var(--muted);font-size:12px;padding:4px 12px;border-radius:10px;margin:10px 0}
.msg{max-width:75%;padding:7px 10px 5px;border-radius:12px;position:relative;word-wrap:break-word;white-space:pre-wrap;line-height:1.35}
.msg.me{align-self:flex-end;background:var(--me);border:1px solid #1f4258;border-bottom-right-radius:4px}
.msg.them{align-self:flex-start;background:var(--them);border:1px solid #262626;border-bottom-left-radius:4px}
.msg .sender{font-size:12.5px;font-weight:600;color:var(--gold);margin-bottom:2px}
.msg .t{font-size:11px;color:var(--muted);float:right;margin:6px 0 0 10px}
.msg img,.msg video{max-width:280px;width:100%;border-radius:8px;display:block;margin-bottom:4px;cursor:pointer}
.msg audio{width:250px;max-width:100%;display:block;height:40px}
.msg .file{display:flex;gap:10px;align-items:center;background:rgba(0,0,0,.25);padding:8px 10px;border-radius:8px;text-decoration:none;color:var(--text)}
.msg .file .ic{width:34px;height:34px;border-radius:8px;background:var(--gold-soft);color:var(--gold);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700}
.msg.big-emoji{background:transparent!important;border:0!important;font-size:42px;padding:0 4px}

.composer{display:flex;align-items:flex-end;gap:6px;padding:8px 10px;background:var(--bg2);border-top:1px solid var(--line);position:relative}
.composer textarea{resize:none;max-height:140px;min-height:42px;border-radius:21px;padding:10px 14px;background:var(--panel)}
.send-btn{width:44px;height:44px;border-radius:50%;background:linear-gradient(180deg,var(--gold),var(--gold2));color:var(--on-accent);display:flex;align-items:center;justify-content:center;flex:none}
.send-btn svg{width:22px;height:22px}
.rec-bar{flex:1;display:flex;align-items:center;gap:10px;color:var(--danger);font-variant-numeric:tabular-nums;min-height:42px}
.rec-dot{width:10px;height:10px;border-radius:50%;background:var(--danger);animation:pulse 1s infinite}
@keyframes pulse{50%{opacity:.3}}
#emojiPanel{position:absolute;bottom:62px;left:10px;width:320px;max-width:calc(100% - 20px);height:250px;overflow-y:auto;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:8px;display:grid;grid-template-columns:repeat(8,1fr);gap:2px;z-index:5;box-shadow:0 10px 30px rgba(0,0,0,.6)}
#emojiPanel button{font-size:22px;padding:4px;border-radius:8px}
#emojiPanel button:hover{background:var(--panel2)}

/* Modal */
.modal-bg{position:fixed;inset:0;background:rgba(0,0,0,.65);display:flex;align-items:center;justify-content:center;z-index:20;padding:16px}
.modal{background:var(--bg2);border:1px solid var(--line);border-radius:18px;width:100%;max-width:440px;max-height:90vh;overflow-y:auto;padding:18px}
.modal h2{margin:0 0 12px;font-size:19px;display:flex;align-items:center;justify-content:space-between}
.modal h3{font-size:14px;color:var(--gold);margin:18px 0 8px;text-transform:uppercase;letter-spacing:.6px}
.pick-list{max-height:280px;overflow-y:auto;margin:10px 0;border:1px solid var(--line);border-radius:12px}
.pick{display:flex;align-items:center;gap:10px;padding:9px 12px;cursor:pointer;border-bottom:1px solid #1c1c1c}
.pick:last-child{border-bottom:0}
.pick:hover{background:var(--panel)}
.pick .chk{margin-left:auto;width:22px;height:22px;border-radius:50%;border:2px solid var(--line)}
.pick.sel .chk{background:var(--gold);border-color:var(--gold)}

/* Call */
#callView{position:fixed;inset:0;background:#050505;z-index:30;display:flex;flex-direction:column}
#callGrid{flex:1;display:grid;gap:6px;padding:6px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));align-content:center}
.tile{position:relative;background:#111;border-radius:14px;overflow:hidden;aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;border:1px solid #222}
.tile video{width:100%;height:100%;object-fit:cover}
.tile .label{position:absolute;left:10px;bottom:8px;background:rgba(0,0,0,.6);padding:3px 9px;border-radius:8px;font-size:13px}
.tile .avatar{width:90px;height:90px;font-size:34px}
.tile.self video{transform:scaleX(-1)}
.call-top{padding:14px;text-align:center}
.call-top .n{font-size:20px;font-weight:600}
.call-bar{display:flex;justify-content:center;gap:16px;padding:16px 16px 28px}
.call-bar button{width:58px;height:58px;border-radius:50%;background:#222;display:flex;align-items:center;justify-content:center;color:var(--text)}
.call-bar button.off{background:#3a3a3a;color:var(--danger)}
.call-bar button.hang{background:var(--danger);color:#fff}
.call-bar svg{width:26px;height:26px}
#incoming{position:fixed;top:16px;left:50%;transform:translateX(-50%);background:var(--panel);border:1px solid var(--gold);border-radius:16px;padding:14px 16px;z-index:40;display:flex;align-items:center;gap:12px;box-shadow:0 10px 30px rgba(0,0,0,.6);width:min(420px,calc(100% - 24px))}
#incoming .who{flex:1}
#incoming button{width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff}
#incoming svg{width:22px;height:22px}
.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);background:var(--panel2);border:1px solid var(--line);padding:10px 16px;border-radius:12px;z-index:50;font-size:14px;max-width:90vw}
#lightbox{position:fixed;inset:0;background:rgba(0,0,0,.92);z-index:45;display:flex;align-items:center;justify-content:center}
#lightbox img,#lightbox video{max-width:95vw;max-height:92vh}

/* Páginas legais */
body.legal{overflow:auto}
.legal-page{max-width:760px;margin:0 auto;padding:28px 20px 60px;line-height:1.6}
.legal-page h1{color:var(--gold);font-size:26px}
.legal-page h2{font-size:18px;margin-top:28px}
.legal-page .top{display:flex;align-items:center;gap:12px}
.legal-page .top img{width:44px;height:44px;border-radius:12px}

@media (max-width:760px){
  #sidebar{width:100%;border-right:0}
  #conv{display:none}
  #main.in-chat #sidebar{display:none}
  #main.in-chat #conv{display:flex}
  #backBtn{display:inline-flex}
  #messages{padding:12px 10px}
  .msg{max-width:85%}
}