@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  --void:#070A12; --panel:#0B1120; --panel-2:#101827; --panel-3:#141d2f;
  --line:#1A2233; --line-2:#26314a;
  --signal:#5EEAD4; --pulse:#818CF8;
  --text:#EAEEF7; --muted:#8A94AD; --muted-2:#5A6480;
  --me-grad:linear-gradient(135deg, color-mix(in srgb, var(--signal) 22%, #0e2a2a), color-mix(in srgb, var(--pulse) 20%, #141d2f));
  --sans:'Space Grotesk', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --body:system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, 'Apple Color Emoji', 'Segoe UI Emoji', sans-serif;
  --mono:'JetBrains Mono', ui-monospace, monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{background:var(--void);color:var(--text);font-family:var(--body);-webkit-font-smoothing:antialiased}
button{font-family:inherit;cursor:pointer}
::selection{background:var(--signal);color:var(--void)}

/* ============ LOGIN / ADMIN ============ */
.login-body{display:flex;align-items:center;justify-content:center;min-height:100dvh;padding:24px;
  background:radial-gradient(90% 60% at 50% 0%, #0d1526, var(--void))}
.login-wrap,.admin-wrap{width:100%;max-width:420px}
.admin-wrap{max-width:620px}
.login-card{background:linear-gradient(160deg,var(--panel),var(--void));border:1px solid var(--line);
  border-radius:20px;padding:38px 32px;box-shadow:0 30px 80px -40px #000}
.login-logo{display:flex;align-items:center;gap:11px;justify-content:center;margin-bottom:22px}
.login-logo-text{font-family:var(--sans);font-weight:700;font-size:22px}
.login-logo-text span{color:var(--signal)}
.login-title{font-family:var(--sans);font-weight:600;font-size:26px;text-align:center;letter-spacing:-.02em}
.login-sub{font-family:var(--mono);font-size:12px;color:var(--signal);text-align:center;margin:6px 0 24px;opacity:.8}
.field{margin-bottom:18px}
.field label{font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);display:block;margin-bottom:8px}
.field label small{text-transform:none;letter-spacing:0;color:var(--muted-2)}
.field input,.field textarea{width:100%;background:var(--void);border:1px solid var(--line-2);border-radius:11px;
  padding:14px;color:var(--text);font-size:15px;font-family:var(--body);transition:border-color .2s}
.field textarea{resize:vertical;font-family:var(--mono);font-size:14px}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--signal)}
.btn-enter{width:100%;background:var(--signal);color:var(--void);font-weight:700;border:none;border-radius:11px;
  padding:14px;font-size:15px;font-family:var(--sans);transition:transform .15s,box-shadow .2s}
.btn-enter:hover{transform:translateY(-2px);box-shadow:0 14px 36px -14px var(--signal)}
.login-error{background:rgba(248,113,113,.1);border:1px solid rgba(248,113,113,.35);color:#FCA5A5;
  border-radius:11px;padding:12px 14px;font-size:13.5px;margin-bottom:18px}
.login-admin{display:block;text-align:center;margin-top:20px;font-family:var(--mono);font-size:12px;color:var(--muted)}
.login-admin:hover{color:var(--signal)}

/* admin panel */
.admin-panel{background:linear-gradient(160deg,var(--panel),var(--void));border:1px solid var(--line);border-radius:20px;padding:28px}
.admin-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:12px}
.admin-head .login-logo-text{font-size:18px}
.admin-head-actions{display:flex;gap:10px}
.pill-link{font-family:var(--mono);font-size:12px;color:var(--text);border:1px solid var(--line-2);padding:7px 13px;border-radius:20px}
.pill-link:hover{border-color:var(--signal);color:var(--signal)}
.pill-link.danger:hover{border-color:#F87171;color:#F87171}
.admin-notice{border-radius:11px;padding:12px 14px;font-size:14px;margin-bottom:18px}
.admin-notice.ok{background:rgba(94,234,212,.08);border:1px solid rgba(94,234,212,.3);color:var(--signal)}
.admin-notice.err{background:rgba(248,113,113,.1);border:1px solid rgba(248,113,113,.35);color:#FCA5A5}
.admin-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:24px}
.stat{background:var(--panel-2);border:1px solid var(--line);border-radius:12px;padding:16px 12px;text-align:center}
.stat-num{font-family:var(--sans);font-weight:600;font-size:24px;color:var(--signal)}
.stat-lbl{font-family:var(--mono);font-size:10.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;margin-top:4px}
.admin-section{border-top:1px solid var(--line);padding-top:22px;margin-top:8px}
.admin-section h2{font-family:var(--sans);font-size:17px;font-weight:600;margin-bottom:14px}
.switch-row{display:flex;align-items:center;gap:12px;padding:10px 0;font-size:14.5px}
.switch-row small{color:var(--muted-2);font-size:12.5px}
.switch-row input{width:18px;height:18px;accent-color:var(--signal)}
.admin-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.btn-primary-sm{background:var(--signal);color:var(--void);font-weight:700;border:none;border-radius:10px;padding:11px 18px;font-size:14px}
.btn-ghost-sm{background:transparent;color:var(--text);border:1px solid var(--line-2);border-radius:10px;padding:11px 18px;font-size:14px}
.btn-ghost-sm:hover{border-color:var(--signal);color:var(--signal)}
.btn-danger-sm{background:rgba(248,113,113,.12);color:#FCA5A5;border:1px solid rgba(248,113,113,.4);border-radius:10px;padding:11px 18px;font-size:14px}
.danger-zone h2{color:#FCA5A5}
.muted{color:var(--muted);font-size:14px;margin-bottom:14px}

/* ============ CHAT ============ */
.chat-body{overflow:hidden}
.app{display:flex;flex-direction:column;height:100dvh;max-width:860px;margin:0 auto;background:var(--void);
  border-left:1px solid var(--line);border-right:1px solid var(--line);position:relative}

.chat-header{display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:calc(12px + env(safe-area-inset-top)) 16px 12px;background:var(--panel);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:20}
.ch-left{display:flex;align-items:center;gap:12px;min-width:0}
.avatar{width:42px;height:42px;border-radius:50%;flex:none;display:flex;align-items:center;justify-content:center;
  font-family:var(--sans);font-weight:700;font-size:18px;color:var(--void);
  background:linear-gradient(135deg,var(--signal),var(--pulse))}
.ch-meta{min-width:0}
.ch-name{font-family:var(--sans);font-weight:600;font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ch-status{font-size:12px;color:var(--muted-2)}
.ch-status.online{color:var(--signal)}
.ch-actions{display:flex;gap:4px;flex:none}
.icon-btn{width:40px;height:40px;border-radius:10px;border:none;background:transparent;color:var(--muted);
  display:flex;align-items:center;justify-content:center;transition:background .15s,color .15s}
.icon-btn:hover{background:var(--panel-2);color:var(--text)}
.icon-btn.active{color:var(--signal)}

.search-bar{display:none;align-items:center;gap:8px;padding:10px 14px;background:var(--panel);border-bottom:1px solid var(--line)}
.search-bar.open{display:flex}
.search-bar input{flex:1;background:var(--void);border:1px solid var(--line-2);border-radius:10px;padding:10px 12px;color:var(--text);font-size:14px}
.search-bar input:focus{outline:none;border-color:var(--signal)}
.search-count{font-family:var(--mono);font-size:11px;color:var(--muted)}

.messages{flex:1;overflow-y:auto;padding:18px 16px 8px;display:flex;flex-direction:column;gap:3px;
  background:radial-gradient(60% 40% at 50% 0%, #0a1120, var(--void))}
.messages::-webkit-scrollbar{width:8px}
.messages::-webkit-scrollbar-thumb{background:var(--line-2);border-radius:8px}

.msg{display:flex;align-items:flex-end;gap:6px;max-width:82%;position:relative}
.msg.me{align-self:flex-end;flex-direction:row-reverse}
.msg.them{align-self:flex-start}
.bubble{position:relative;padding:9px 12px 7px;border-radius:16px;font-size:15px;line-height:1.45;
  background:var(--panel-2);border:1px solid var(--line);word-wrap:break-word;overflow-wrap:anywhere}
.msg.me .bubble{background:var(--me-grad);border-color:transparent}
.msg.them .bubble{border-bottom-left-radius:5px}
.msg.me .bubble{border-bottom-right-radius:5px}
.bubble .text{white-space:pre-wrap}
.bubble .text mark{background:var(--signal);color:var(--void);border-radius:3px;padding:0 2px}

.reply-quote{border-left:3px solid var(--signal);background:rgba(255,255,255,.04);border-radius:7px;
  padding:5px 9px;margin-bottom:6px;cursor:pointer;max-width:260px}
.rq-name{display:block;font-size:12px;font-weight:600;color:var(--signal)}
.rq-text{display:block;font-size:12.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.msg-img{max-width:260px;max-height:320px;border-radius:11px;display:block;cursor:pointer;margin:-2px 0 2px}
.voice{display:flex;align-items:center;gap:8px;min-width:210px}
.voice-audio{height:36px;flex:1}
.voice-dur{font-family:var(--mono);font-size:11px;color:var(--muted)}

.meta{display:flex;align-items:center;gap:5px;justify-content:flex-end;margin-top:2px}
.meta .time{font-size:10.5px;color:var(--muted-2);font-family:var(--mono)}
.meta .star-mark{font-size:11px}
.check{font-size:11px;color:var(--muted-2);letter-spacing:-1px}
.check.read{color:var(--signal)}

.reactions{display:flex;gap:4px;flex-wrap:wrap;margin-top:5px}
.rchip{display:inline-flex;align-items:center;gap:3px;background:var(--panel-3);border:1px solid var(--line-2);
  border-radius:20px;padding:2px 7px;font-size:13px;color:var(--text)}
.rchip.mine{border-color:var(--signal);background:rgba(94,234,212,.12)}
.rchip .rn{font-size:11px;color:var(--muted);font-family:var(--mono)}

.msg-action{opacity:0;width:26px;height:26px;border-radius:50%;border:none;background:var(--panel-3);color:var(--muted);
  font-size:15px;line-height:1;transition:opacity .15s;flex:none}
.msg:hover .msg-action{opacity:1}
@media(hover:none){.msg-action{display:none}}

.msg.flash .bubble{animation:flash 1.2s ease}
@keyframes flash{0%,100%{box-shadow:none}30%{box-shadow:0 0 0 3px var(--signal)}}

.typing-indicator{display:flex;gap:4px;padding:4px 20px 8px;align-self:flex-start}
.typing-indicator[hidden]{display:none}
.typing-indicator span{width:7px;height:7px;border-radius:50%;background:var(--muted);animation:typing 1.2s infinite}
.typing-indicator span:nth-child(2){animation-delay:.2s}
.typing-indicator span:nth-child(3){animation-delay:.4s}
@keyframes typing{0%,60%,100%{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-4px)}}

/* reply bar */
.reply-bar{display:flex;align-items:center;gap:10px;padding:10px 16px;background:var(--panel);border-top:1px solid var(--line)}
.reply-bar[hidden]{display:none}
.reply-info{flex:1;border-left:3px solid var(--signal);padding-left:10px;min-width:0}
.reply-to-name{font-size:12.5px;font-weight:600;color:var(--signal)}
.reply-to-text{font-size:12.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* recording */
.recording-bar{display:flex;align-items:center;gap:12px;padding:14px 16px calc(14px + env(safe-area-inset-bottom));
  background:var(--panel);border-top:1px solid var(--line)}
.recording-bar[hidden]{display:none}
.rec-dot{width:12px;height:12px;border-radius:50%;background:#F87171;animation:pulse 1s infinite}
@keyframes pulse{50%{opacity:.3}}
.rec-time{font-family:var(--mono);font-size:14px;color:var(--text)}
.rec-label{flex:1;color:var(--muted);font-size:13px}
.rec-cancel{background:transparent;border:1px solid var(--line-2);color:var(--muted);border-radius:9px;padding:8px 14px;font-size:13px}
.rec-send{background:var(--signal);color:var(--void);border:none;border-radius:9px;padding:8px 16px;font-weight:700;font-size:13px}

/* composer */
.composer{display:flex;align-items:flex-end;gap:6px;padding:10px 12px calc(10px + env(safe-area-inset-bottom));
  background:var(--panel);border-top:1px solid var(--line)}
.input-shell{flex:1;background:var(--void);border:1px solid var(--line-2);border-radius:22px;padding:4px 14px;display:flex}
.input-shell textarea{width:100%;background:transparent;border:none;color:var(--text);font-family:var(--body);
  font-size:15px;line-height:1.4;resize:none;padding:8px 0;max-height:140px}
.input-shell textarea:focus{outline:none}
.send-btn{width:46px;height:46px;border-radius:50%;border:none;flex:none;color:var(--void);
  background:linear-gradient(135deg,var(--signal),var(--pulse));display:flex;align-items:center;justify-content:center}
.send-btn[hidden],.mic-btn[hidden]{display:none}

/* emoji panel */
.emoji-panel{position:absolute;bottom:72px;left:12px;right:12px;max-width:420px;margin:0 auto;z-index:40;
  background:var(--panel);border:1px solid var(--line-2);border-radius:16px;box-shadow:0 20px 50px -20px #000;overflow:hidden}
.emoji-panel[hidden]{display:none}
.emoji-top{display:flex;align-items:center;justify-content:space-between;padding:8px 10px;border-bottom:1px solid var(--line);gap:8px}
.emoji-tabs{display:flex;gap:2px;overflow-x:auto}
.etab{background:transparent;border:none;font-size:19px;padding:6px 8px;border-radius:9px;opacity:.6;flex:none}
.etab.active{opacity:1;background:var(--panel-2)}
.skin-tones{display:flex;gap:2px;flex:none}
.tone{background:transparent;border:1px solid transparent;border-radius:8px;font-size:16px;padding:4px 5px;opacity:.7}
.tone.active{border-color:var(--signal);opacity:1}
.emoji-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:2px;padding:10px;max-height:240px;overflow-y:auto}
.emoji{background:transparent;border:none;font-size:24px;padding:5px;border-radius:9px;line-height:1}
.emoji:hover{background:var(--panel-2)}

/* theme panel */
.theme-panel{position:absolute;top:64px;right:12px;z-index:40;background:var(--panel);border:1px solid var(--line-2);
  border-radius:14px;padding:14px;box-shadow:0 20px 50px -20px #000}
.theme-panel[hidden]{display:none}
.theme-title{font-family:var(--mono);font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:10px}
.theme-swatches{display:flex;gap:8px}
.swatch{width:30px;height:30px;border-radius:50%;border:2px solid var(--line-2)}
.swatch:hover{border-color:#fff}

/* react popup */
.react-popup{position:fixed;z-index:60;background:var(--panel);border:1px solid var(--line-2);border-radius:14px;
  box-shadow:0 20px 50px -18px #000;padding:6px;min-width:180px}
.react-popup[hidden]{display:none}
.rp-emojis{display:flex;gap:2px;padding:2px;border-bottom:1px solid var(--line);margin-bottom:4px}
.rp-emojis button{background:transparent;border:none;font-size:22px;padding:5px;border-radius:9px}
.rp-emojis button:hover{background:var(--panel-2);transform:scale(1.15)}
.rp-acts{display:flex;flex-direction:column}
.rp-acts button{background:transparent;border:none;color:var(--text);text-align:left;padding:9px 12px;border-radius:9px;font-size:14px}
.rp-acts button:hover{background:var(--panel-2)}

/* lightbox */
.lightbox{position:fixed;inset:0;z-index:80;background:rgba(0,0,0,.9);display:flex;align-items:center;justify-content:center;padding:24px}
.lightbox[hidden]{display:none}
.lightbox img{max-width:100%;max-height:100%;border-radius:10px}
.lightbox-close{position:absolute;top:calc(16px + env(safe-area-inset-top));right:20px;background:rgba(255,255,255,.1);
  border:none;color:#fff;width:42px;height:42px;border-radius:50%;font-size:18px}

/* responsive */
@media(max-width:860px){.app{border-left:none;border-right:none}}
@media(max-width:560px){
  .msg{max-width:88%}
  .msg-img{max-width:min(72vw,260px)}
  .admin-stats{grid-template-columns:repeat(2,1fr)}
  .emoji-grid{grid-template-columns:repeat(7,1fr)}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}