*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#faf8f3;--bg2:#f5f0e8;--bg3:#efe9da;
  --text:#2c2416;--muted:#8a7a65;--subtle:#c4b8a5;
  --accent:#b5843a;--accent2:#d4a85a;--accent3:#8b5e1a;
  --border:#e2d8c8;--card:#fffdf8;
  --green:#5a8a4a;--red:#c44a4a;
  --ai:#4a6fa5;--ai3:#2d4d7a;
}
html,body{height:100%;overflow:hidden}
body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--text);display:flex;align-items:stretch}

/* ===== LEFT PANEL (desktop) ===== */
.left{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 80px;position:relative;overflow:hidden}
.left-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(181,132,58,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(181,132,58,.06) 1px,transparent 1px);background-size:60px 60px;pointer-events:none}
.left-glow{position:absolute;top:20%;left:40%;transform:translate(-50%,-50%);width:600px;height:600px;background:radial-gradient(ellipse,rgba(74,111,165,.08) 0%,transparent 70%);pointer-events:none}
.left-content{position:relative;z-index:1;width:100%;max-width:420px}
.left-logo{font-family:'JetBrains Mono',monospace;font-size:13px;color:var(--accent);margin-bottom:48px;display:flex;align-items:center;gap:8px}
.left-logo i{font-size:18px}
.left-title{font-size:clamp(32px,4vw,48px);font-weight:900;line-height:1.1;letter-spacing:-1.5px;margin-bottom:16px}
.left-title span{background:linear-gradient(135deg,var(--ai3),var(--ai));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.left-sub{font-size:15px;color:var(--muted);line-height:1.7;margin-bottom:40px}
.limit-cards{display:flex;gap:12px}
.limit-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:14px 18px;flex:1;text-align:center}
.limit-num{font-size:22px;font-weight:700;color:var(--accent)}
.limit-label{font-size:11px;color:var(--muted);margin-top:5px;line-height:1.4}

/* ===== RIGHT PANEL ===== */
.right{width:480px;flex-shrink:0;background:var(--card);border-left:1px solid var(--border);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 48px;overflow-y:auto}
.form-wrap{width:100%;max-width:360px}
.form-head{margin-bottom:24px}
.form-title{font-size:26px;font-weight:800;letter-spacing:-.5px;margin-bottom:6px}
.form-sub{font-size:13px;color:var(--muted)}

.screen{display:none}
.screen.active{display:block}

/* ===== MOBILE HERO ===== */
.mobile-hero{display:none}

.form-group{margin-bottom:0}
.input-wrap{position:relative}
.input-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:17px;pointer-events:none}
.form-input{width:100%;background:var(--bg2);border:1.5px solid var(--border);border-radius:12px;padding:13px 14px 13px 42px;font-size:14px;font-family:'Inter',sans-serif;color:var(--text);outline:none;transition:all .2s}
.form-input:focus{border-color:var(--ai);background:var(--bg)}
.form-input::placeholder{color:var(--subtle)}

.form-btn{width:100%;background:linear-gradient(135deg,var(--ai3),var(--ai));color:#fff;border:none;border-radius:12px;padding:14px;font-size:15px;font-weight:700;cursor:pointer;font-family:'Inter',sans-serif;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:8px}
.form-btn:hover{opacity:.88;transform:translateY(-1px)}
.form-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}

.guest-btn{width:100%;background:var(--bg2);color:var(--muted);border:1.5px solid var(--border);border-radius:12px;padding:13px;font-size:14px;font-weight:600;cursor:pointer;font-family:'Inter',sans-serif;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:8px}
.guest-btn:hover{border-color:var(--accent);color:var(--accent)}

.divider{display:flex;align-items:center;gap:12px;margin:16px 0;color:var(--subtle);font-size:12px;justify-content:center}
.divider::before,.divider::after{content:'';flex:1;height:1px;background:var(--border)}

.error-box{background:rgba(196,74,74,.07);border:1.5px solid rgba(196,74,74,.2);border-radius:10px;padding:10px 14px;font-size:13px;color:var(--red);margin-bottom:16px;display:none}
.error-box.show{display:block}

.join-row{display:flex;gap:8px}
.join-btn{width:50px;flex-shrink:0;padding:13px 0}

/* ===== Waiting / Room created center box ===== */
.center-box{display:flex;flex-direction:column;align-items:center;text-align:center}
.spinner{width:42px;height:42px;border:4px solid var(--border);border-top-color:var(--ai);border-radius:50%;animation:spin .8s linear infinite;margin-bottom:18px}
@keyframes spin{to{transform:rotate(360deg)}}
.waiting-text{font-size:14px;color:var(--text);margin-bottom:18px;font-weight:600}

.room-code{
  font-family:'JetBrains Mono',monospace;
  font-size:32px;font-weight:800;letter-spacing:6px;
  color:var(--accent3);
  background:var(--bg2);
  border:1.5px solid var(--border);
  padding:14px 22px;
  border-radius:12px;
}

/* ===== Chat screen ===== */
.chat-screen{width:100%}
.chat-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:16px;
  display:flex;
  flex-direction:column;
  height:560px;
  overflow:hidden;
}
.chat-header{
  display:flex;align-items:center;gap:8px;
  padding:14px 16px;
  border-bottom:1px solid var(--border);
  font-size:13px;font-weight:600;color:var(--text);
  background:var(--bg2);
}
.status-dot{width:8px;height:8px;background:var(--green);border-radius:50%;display:inline-block;flex-shrink:0}
.leave-btn{
  margin-left:auto;
  background:rgba(196,74,74,.1);
  color:var(--red);
  border:1px solid rgba(196,74,74,.25);
  border-radius:8px;
  padding:6px 12px;
  font-size:12px;font-weight:600;
  cursor:pointer;
  display:flex;align-items:center;gap:5px;
  font-family:'Inter',sans-serif;
}
.leave-btn:hover{background:rgba(196,74,74,.18)}

.messages{flex:1;padding:16px;overflow-y:auto;display:flex;flex-direction:column;gap:9px}
.msg{max-width:78%;padding:10px 14px;border-radius:14px;font-size:14px;line-height:1.45;word-wrap:break-word}
.msg.self{background:linear-gradient(135deg,var(--ai3),var(--ai));color:#fff;align-self:flex-end;border-bottom-right-radius:4px}
.msg.other{background:var(--bg2);color:var(--text);border:1px solid var(--border);align-self:flex-start;border-bottom-left-radius:4px}
.msg.system{align-self:center;background:transparent;color:var(--subtle);font-size:12px}

.typing-indicator{font-size:12px;color:var(--muted);padding:0 16px;min-height:18px}

/* Header text + status */
.header-text{display:flex;flex-direction:column;gap:1px;flex:1;min-width:0}
.header-title{font-size:13px;font-weight:600;color:var(--text)}
.header-status{font-size:11px;color:var(--muted);font-weight:500}
.status-dot.offline{background:var(--subtle)}

/* Header actions / dropdown menu */
.header-actions{position:relative}
.icon-btn{background:transparent;border:none;color:var(--muted);font-size:18px;cursor:pointer;padding:6px;border-radius:8px;display:flex;align-items:center;justify-content:center}
.icon-btn:hover{background:var(--bg3);color:var(--text)}
.chat-menu{
  display:none;position:absolute;top:36px;right:0;
  background:var(--card);border:1px solid var(--border);border-radius:10px;
  box-shadow:0 8px 24px rgba(0,0,0,.12);min-width:150px;overflow:hidden;z-index:10;
}
.chat-menu.show{display:block}
.chat-menu-item{
  width:100%;background:none;border:none;text-align:left;padding:10px 14px;
  font-size:13px;font-family:'Inter',sans-serif;color:var(--text);cursor:pointer;
  display:flex;align-items:center;gap:8px;
}
.chat-menu-item:hover{background:var(--bg2)}
.chat-menu-item.danger{color:var(--red)}

/* Typing bubble animation (chat-message style) */
.typing-bubble{
  display:none;align-self:flex-start;align-items:center;gap:4px;
  background:var(--bg2);border:1px solid var(--border);
  border-radius:14px;border-bottom-left-radius:4px;
  padding:10px 14px;margin:0 16px 6px;width:fit-content;
}
.typing-bubble.show{display:flex}
.typing-bubble span{
  width:6px;height:6px;border-radius:50%;background:var(--muted);
  animation:bounce 1.1s infinite ease-in-out;
}
.typing-bubble span:nth-child(2){animation-delay:.15s}
.typing-bubble span:nth-child(3){animation-delay:.3s}
@keyframes bounce{
  0%,60%,100%{transform:translateY(0);opacity:.5}
  30%{transform:translateY(-5px);opacity:1}
}

/* Voice note message bubble */
.msg.voice{display:flex;align-items:center;gap:10px;padding:9px 12px}
.voice-play-btn{
  width:30px;height:30px;border-radius:50%;border:none;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:14px;
}
.msg.self .voice-play-btn{background:rgba(255,255,255,.25);color:#fff}
.msg.other .voice-play-btn{background:var(--ai);color:#fff}
.voice-wave{flex:1;height:22px;display:flex;align-items:center;gap:2px;min-width:60px}
.voice-wave span{width:2.5px;border-radius:2px;background:currentColor;opacity:.6}
.msg.self .voice-wave span{background:#fff}
.msg.other .voice-wave span{background:var(--ai)}
.voice-duration{font-size:11px;opacity:.8;flex-shrink:0}

/* Voice record button + bar */
.voice-btn{flex-shrink:0;width:44px;background:var(--bg2);border-radius:12px}
.voice-btn.recording{background:rgba(196,74,74,.15);color:var(--red)}
.recording-bar{
  display:none;align-items:center;gap:10px;padding:10px 16px;
  border-top:1px solid var(--border);background:var(--bg2);font-size:13px;
}
.recording-bar.show{display:flex}
.rec-dot{width:9px;height:9px;border-radius:50%;background:var(--red);animation:pulse 1s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
.rec-label{color:var(--muted);flex:1}
.rec-cancel,.rec-stop{
  border:none;border-radius:8px;padding:6px 10px;font-size:12px;font-weight:600;
  cursor:pointer;font-family:'Inter',sans-serif;display:flex;align-items:center;gap:5px;
}
.rec-cancel{background:var(--bg3);color:var(--muted)}
.rec-stop{background:linear-gradient(135deg,var(--ai3),var(--ai));color:#fff}

/* Report modal */
.modal-overlay{
  display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);
  align-items:center;justify-content:center;z-index:100;padding:20px;
}
.modal-overlay.show{display:flex}
.modal-box{
  background:var(--card);border-radius:16px;padding:24px;max-width:360px;width:100%;
  box-shadow:0 20px 50px rgba(0,0,0,.25);
}
.modal-title{font-size:17px;font-weight:700;display:flex;align-items:center;gap:8px;margin-bottom:6px;color:var(--red)}
.report-reasons{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.report-reason{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text);
  background:var(--bg2);border:1px solid var(--border);border-radius:10px;padding:10px 12px;cursor:pointer;
}
.report-reason input{accent-color:var(--ai)}
.modal-actions{display:flex;gap:10px}
.modal-actions .guest-btn,.modal-actions .form-btn{width:auto;flex:1}

.toast{
  position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);
  background:var(--text);color:#fff;padding:12px 20px;border-radius:10px;font-size:13px;
  opacity:0;transition:all .25s;z-index:200;pointer-events:none;display:flex;align-items:center;gap:8px;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

.chat-input-row{display:flex;gap:8px;padding:12px;border-top:1px solid var(--border)}
.chat-text-input{padding:12px 14px}
.send-btn{width:48px;flex-shrink:0;padding:0}

/* ===== FULLSCREEN CHAT MODE (desktop) ===== */
body.in-chat .left{display:none}
body.in-chat .right{
  width:100%;
  border-left:none;
  padding:0;
  justify-content:center;
}
body.in-chat .form-wrap{max-width:680px}
body.in-chat .chat-card{height:88vh;max-height:820px}

@media(max-width:800px){
  body.in-chat .right{padding:0}
}
@media(max-width:800px){
  html,body{overflow:auto;height:auto}
  body{flex-direction:column}
  .left{display:none}
  .right{width:100%;border-left:none;padding:0;justify-content:flex-start;min-height:100vh;background:var(--bg)}

  .mobile-hero{
    display:block;
    background:linear-gradient(160deg,var(--ai3) 0%,var(--ai) 100%);
    padding:40px 28px 32px;
    position:relative;overflow:hidden;
  }
  .mobile-hero::before{
    content:'';position:absolute;inset:0;
    background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
    background-size:40px 40px;
  }
  .mobile-hero::after{
    content:'';position:absolute;bottom:-60px;right:-60px;width:200px;height:200px;
    background:radial-gradient(ellipse,rgba(255,255,255,.08) 0%,transparent 70%);border-radius:50%;
  }
  .mobile-hero-inner{position:relative;z-index:1}
  .mobile-logo{display:flex;align-items:center;gap:8px;margin-bottom:20px}
  .mobile-logo-badge{background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.2);border-radius:10px;padding:6px 12px;display:flex;align-items:center;gap:6px;font-family:'JetBrains Mono',monospace;font-size:12px;font-weight:600;color:#fff}
  .mobile-logo-dot{width:7px;height:7px;border-radius:50%;background:var(--accent2)}
  .mobile-hero-title{font-size:26px;font-weight:900;color:#fff;letter-spacing:-1px;line-height:1.15;margin-bottom:8px}
  .mobile-hero-title span{color:var(--accent2)}
  .mobile-hero-sub{font-size:13px;color:rgba(255,255,255,.75);line-height:1.6;margin-bottom:20px}
  .mobile-stats{display:flex;gap:10px}
  .mobile-stat{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.15);border-radius:10px;padding:10px 12px;flex:1;text-align:center}
  .mobile-stat-num{font-size:18px;font-weight:700;color:#fff}
  .mobile-stat-label{font-size:9.5px;color:rgba(255,255,255,.65);margin-top:3px}

  .form-wrap{
    max-width:100%;
    padding:28px 24px 40px;
    background:var(--card);
    border-radius:20px 20px 0 0;
    margin-top:-16px;
    position:relative;z-index:2;
    box-shadow:0 -4px 24px rgba(0,0,0,.06);
    min-height:calc(100vh - 220px);
  }
  .form-head{margin-bottom:22px}
  .form-title{font-size:22px}

  .chat-card{height:calc(100vh - 40px)}
}