:root{
  --bg:#0b0f17; --bg2:#0f1521; --panel:#121a28; --panel2:#16202f; --line:#1e2a3d;
  --text:#e8eef7; --muted:#8493a8; --muted2:#5f6f86;
  --brand:#6ea8fe; --brand2:#8b7dfb; --accent:#38e0c8; --ok:#3ad29f; --warn:#ffb454; --danger:#ff6b7d;
  --bubble-in:#182335; --bubble-out:linear-gradient(135deg,#3b6ef0,#6d5cf0);
  --shadow:0 12px 40px rgba(0,0,0,.45); --radius:16px;
  --grad:linear-gradient(135deg,var(--brand),var(--brand2));
}
:root[data-theme="light"]{
  --bg:#eef2f8; --bg2:#e7ecf4; --panel:#ffffff; --panel2:#f4f7fb; --line:#e2e8f1;
  --text:#0e1726; --muted:#5b6b82; --muted2:#8695ab;
  --bubble-in:#eef2f8; --bubble-out:linear-gradient(135deg,#3b6ef0,#6d5cf0);
  --shadow:0 12px 40px rgba(30,50,90,.14);
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
/* consistent dark form controls everywhere (fixes white inputs in modals) */
input[type="text"],input[type="search"],input[type="file"],input:not([type]),select,textarea{
  background:var(--bg2);border:1px solid var(--line);color:var(--text);border-radius:12px;
  padding:12px 14px;font-size:15px;outline:none;font-family:inherit;transition:border .15s,box-shadow .15s;-webkit-appearance:none;appearance:none}
input:focus,select:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(110,168,254,.18)}
input::placeholder{color:var(--muted2)}
select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%238493a8' d='M0 0l5 6 5-6z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:30px}
body{
  font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:radial-gradient(1200px 800px at 80% -10%,rgba(110,168,254,.10),transparent 60%),
             radial-gradient(1000px 700px at -10% 110%,rgba(139,125,251,.10),transparent 60%),var(--bg);
  color:var(--text); -webkit-font-smoothing:antialiased; overflow:hidden;
}
.hidden{display:none !important}
.mono{font-family:"SF Mono",ui-monospace,"Cascadia Code",Consolas,monospace}
.muted{color:var(--muted)}
.err{color:var(--danger);font-size:13px;min-height:16px;margin-top:6px}
a{color:var(--brand);text-decoration:none}
button{font-family:inherit}

/* ---------- onboarding ---------- */
.onboarding{position:fixed;inset:0;display:grid;place-items:center;padding:24px;z-index:20}
.onboard-glow{position:absolute;inset:0;z-index:-1;
  background:radial-gradient(600px 400px at 50% 30%,rgba(139,125,251,.18),transparent 70%)}
.onboard-card{width:min(460px,100%);background:linear-gradient(180deg,var(--panel),var(--panel2));
  border:1px solid var(--line);border-radius:24px;padding:38px 34px;box-shadow:var(--shadow)}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:.3px}
.brand .logo{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-size:26px}
.onboard-card h1{font-size:30px;margin:22px 0 8px;letter-spacing:-.5px}
.onboard-card .sub{color:var(--muted);line-height:1.55;margin:0 0 22px;font-size:15px}
.field{display:block;margin-bottom:18px}
.field span{display:block;font-size:12px;color:var(--muted);margin-bottom:7px;text-transform:uppercase;letter-spacing:.6px}
.field input,#add-name,.search input,.composer input{width:100%;background:var(--bg2);border:1px solid var(--line);
  color:var(--text);border-radius:12px;padding:14px 14px;font-size:15px;outline:none;transition:border .15s,box-shadow .15s}
.field input:focus,#add-name:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(110,168,254,.18)}
.onboard-foot{display:flex;gap:16px;justify-content:center;margin-top:20px;font-size:12px;color:var(--muted2)}
.dot{width:8px;height:8px;border-radius:50%;display:inline-block;background:var(--muted2);vertical-align:middle;margin-right:5px}
.dot.ok{background:var(--ok);box-shadow:0 0 8px rgba(58,210,159,.7)}

/* ---------- buttons ---------- */
.btn{border:1px solid var(--line);background:var(--panel2);color:var(--text);border-radius:12px;
  padding:11px 18px;font-size:14px;font-weight:600;cursor:pointer;transition:transform .08s,filter .15s,background .15s}
.btn:hover{filter:brightness(1.08)}.btn:active{transform:translateY(1px)}
.btn.primary{background:var(--grad);border:none;color:#fff;box-shadow:0 8px 24px rgba(90,110,240,.35)}
.btn.ghost{background:transparent}
.btn.big{width:100%;padding:15px;font-size:15px;margin-top:6px}
.btn.small{padding:8px 14px;font-size:13px}
.icon-btn{width:38px;height:38px;border-radius:11px;border:1px solid var(--line);background:var(--panel2);
  color:var(--text);font-size:18px;cursor:pointer;display:grid;place-items:center;transition:background .15s}
.icon-btn:hover{background:var(--panel)}

/* ---------- app layout ---------- */
.app{position:fixed;inset:0;display:grid;grid-template-columns:340px 1fr}
.sidebar{background:linear-gradient(180deg,var(--panel),var(--bg2));border-right:1px solid var(--line);
  display:flex;flex-direction:column;min-width:0}
.side-head{display:flex;align-items:center;justify-content:space-between;padding:calc(16px + env(safe-area-inset-top)) 16px 12px;gap:10px}
.chat-empty{margin:auto;text-align:center;padding:40px 30px;color:var(--muted)}
.chat-empty .ce-icon{font-size:44px;margin-bottom:14px;opacity:.5}
.chat-empty h4{margin:0 0 6px;color:var(--text);font-size:16px}
.chat-empty p{margin:0 0 18px;font-size:13.5px;line-height:1.5}
.me{display:flex;align-items:center;gap:11px;min-width:0}
.me-info{min-width:0}
.me-name{font-weight:700;font-size:15px}
.me-fp{font-size:11px;color:var(--muted2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:150px}
.side-actions{display:flex;gap:8px}
.avatar{width:44px;height:44px;border-radius:14px;flex:0 0 auto;display:grid;place-items:center;
  font-weight:800;color:#fff;font-size:17px;box-shadow:inset 0 0 0 1px rgba(255,255,255,.12)}
.search{padding:6px 16px 12px}
.chat-list{flex:1;overflow-y:auto;padding:4px 8px}
.chat-item{display:flex;align-items:center;gap:12px;padding:11px 10px;border-radius:14px;cursor:pointer;
  transition:background .12s;position:relative}
.chat-item:hover{background:var(--panel2)}
.chat-item.active{background:var(--panel2)}
.chat-item.active::before{content:"";position:absolute;left:-8px;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--grad)}
.ci-main{flex:1;min-width:0}
.ci-top{display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.ci-name{font-weight:650;font-size:14.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ci-time{font-size:11px;color:var(--muted2);flex:0 0 auto}
.ci-preview{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}
.badge{background:var(--grad);color:#fff;font-size:11px;font-weight:700;min-width:19px;height:19px;border-radius:10px;
  display:grid;place-items:center;padding:0 5px}
.presence{position:absolute;left:34px;top:34px;width:12px;height:12px;border-radius:50%;border:2.5px solid var(--panel);background:var(--muted2)}
.presence.online{background:var(--ok)}
.side-foot{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}
.pill{display:inline-flex;align-items:center;gap:2px}

/* ---------- conversation ---------- */
.conversation{position:relative;min-width:0;display:flex;flex-direction:column;
  background:linear-gradient(180deg,var(--bg),var(--bg2))}
.empty-state{margin:auto;text-align:center;max-width:360px;padding:24px}
.empty-badge{width:76px;height:76px;border-radius:24px;background:var(--grad);display:grid;place-items:center;
  font-size:34px;color:#fff;margin:0 auto 18px;box-shadow:var(--shadow)}
.empty-state h2{margin:0 0 8px}.empty-state p{color:var(--muted);line-height:1.5}
.chat{flex:1;display:flex;flex-direction:column;min-height:0}
.chat-head{display:flex;align-items:center;gap:12px;padding:12px 18px;border-bottom:1px solid var(--line);
  background:rgba(18,26,40,.6);backdrop-filter:blur(12px)}
:root[data-theme="light"] .chat-head{background:rgba(255,255,255,.65)}
.peer-info{flex:1;min-width:0}
.peer-name{font-weight:700;font-size:15.5px}
.peer-status{font-size:12.5px;color:var(--muted)}
.peer-status.online{color:var(--ok)}
.chip{display:inline-flex;align-items:center;gap:6px;background:var(--panel2);border:1px solid var(--line);
  color:var(--muted);border-radius:20px;padding:7px 13px;font-size:12.5px;font-weight:600;cursor:pointer}
.chip.verified{color:var(--ok);border-color:rgba(58,210,159,.4)}
.lock{font-size:12px}

.messages{flex:1;overflow-y:auto;padding:22px 18px 8px;display:flex;flex-direction:column;gap:3px}
.day-sep{align-self:center;font-size:11px;color:var(--muted2);background:var(--panel2);padding:4px 12px;border-radius:12px;margin:12px 0}
.msg{max-width:min(560px,72%);padding:9px 13px;border-radius:16px;font-size:14.5px;line-height:1.4;
  position:relative;word-wrap:break-word;animation:pop .18s ease}
@keyframes pop{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.msg.in{align-self:flex-start;background:var(--bubble-in);border-bottom-left-radius:5px}
.msg.out{align-self:flex-end;background:var(--bubble-out);color:#fff;border-bottom-right-radius:5px}
.msg.same-in{border-top-left-radius:6px}.msg.same-out{border-top-right-radius:6px}
.msg .meta{display:block;font-size:10.5px;margin-top:4px;opacity:.7;text-align:right}
.msg.out .meta{color:rgba(255,255,255,.85)}
.tick{margin-left:3px}.tick.read{color:#7fe9ff}
.typing{align-self:flex-start;display:flex;gap:4px;padding:12px 16px;margin:0 18px 8px}
.typing span{width:7px;height:7px;border-radius:50%;background:var(--muted);animation:blink 1.3s infinite}
.typing span:nth-child(2){animation-delay:.2s}.typing span:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,60%,100%{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-4px)}}

.composer{display:flex;gap:8px;padding:12px 14px calc(12px + env(safe-area-inset-bottom));border-top:1px solid var(--line);align-items:center;
  background:rgba(18,26,40,.5);backdrop-filter:blur(10px)}
:root[data-theme="light"] .composer{background:rgba(255,255,255,.6)}
.composer input{border-radius:22px}
.send-btn{width:46px;height:46px;flex:0 0 auto;border:none;border-radius:50%;background:var(--grad);color:#fff;
  font-size:18px;cursor:pointer;display:grid;place-items:center;box-shadow:0 6px 18px rgba(90,110,240,.4);transition:transform .1s}
.send-btn:active{transform:scale(.92)}

/* ---------- modals ---------- */
.modal{position:fixed;inset:0;background:rgba(4,7,12,.6);backdrop-filter:blur(6px);display:grid;place-items:center;z-index:30;
  animation:fade .15s ease}
@keyframes fade{from{opacity:0}to{opacity:1}}
.modal-card{width:min(420px,92vw);max-height:90vh;overflow-y:auto;background:linear-gradient(180deg,var(--panel),var(--panel2));border:1px solid var(--line);
  border-radius:20px;padding:26px;box-shadow:var(--shadow);animation:pop .18s ease}
.modal-card h3{margin:0 0 6px;font-size:19px}
.modal-card p{margin:0 0 16px}
.modal-card input{margin-top:6px}
.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}
.sec-tier{background:linear-gradient(135deg,rgba(58,210,159,.14),rgba(110,168,254,.12));border:1px solid rgba(58,210,159,.3);
  border-radius:14px;padding:12px 14px;font-weight:600;color:var(--ok);margin:6px 0 16px;display:flex;align-items:center;gap:8px}
.sec-row{display:flex;justify-content:space-between;padding:10px 2px;border-bottom:1px solid var(--line);font-size:14px}
.sec-row span{color:var(--muted)}.sec-row b.ok{color:var(--ok)}
.safety{margin:18px 0 6px;text-align:center}
.safety-title{font-size:12px;color:var(--muted);margin-bottom:10px}
.safety-num{font-size:16px;letter-spacing:2px;line-height:1.9;background:var(--bg2);border:1px solid var(--line);
  border-radius:12px;padding:14px;word-break:break-all}
.sec-note{font-size:12.5px;color:var(--muted2);line-height:1.5;margin-top:14px}

/* ---------- composer extras ---------- */
.comp-btn{width:40px;height:40px;flex:0 0 auto;border:none;border-radius:50%;background:transparent;color:var(--muted);
  font-size:19px;cursor:pointer;display:grid;place-items:center;transition:background .15s,color .15s}
.comp-btn:hover{background:var(--panel2);color:var(--text)}
.comp-btn.recording{background:var(--danger);color:#fff;animation:pulse 1s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(255,107,125,.5)}50%{box-shadow:0 0 0 8px rgba(255,107,125,0)}}
.rec-indicator{display:flex;align-items:center;gap:8px;padding:8px 18px;color:var(--danger);font-size:13px;font-weight:600}
.rec-dot{width:10px;height:10px;border-radius:50%;background:var(--danger);animation:pulse 1s infinite}
.reply-bar{display:flex;align-items:center;gap:10px;padding:8px 14px 8px 18px;border-top:1px solid var(--line);background:var(--panel2)}
.reply-bar-main{flex:1;min-width:0;border-left:3px solid var(--brand);padding-left:10px}
.reply-bar-label{display:block;font-size:11px;color:var(--brand);font-weight:700}
#reply-bar-text{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block}
.emoji-panel{display:grid;grid-template-columns:repeat(auto-fill,minmax(40px,1fr));gap:2px;max-height:200px;overflow-y:auto;
  padding:10px 14px;border-top:1px solid var(--line);background:var(--panel2)}
.emoji-panel button{background:none;border:none;font-size:24px;cursor:pointer;padding:4px;border-radius:8px;transition:background .1s}
.emoji-panel button:hover{background:var(--panel)}

/* ---------- media messages ---------- */
.msg.media-img{padding:4px;overflow:hidden}
.media-wrap{border-radius:12px;overflow:hidden;min-width:180px;min-height:120px;display:grid;place-items:center;background:var(--bg2)}
.media-wrap img{max-width:280px;max-height:340px;display:block;cursor:pointer;border-radius:12px}
.media-loading{font-size:34px;opacity:.4}
.voice-note{display:flex;align-items:center;gap:10px;min-width:180px}
.voice-play{width:36px;height:36px;border-radius:50%;border:none;background:rgba(255,255,255,.2);color:#fff;font-size:15px;cursor:pointer;flex:0 0 auto}
.msg.in .voice-play{background:var(--brand);color:#fff}
.voice-wave{flex:1;height:24px;border-radius:12px;background:repeating-linear-gradient(90deg,currentColor 0 2px,transparent 2px 5px);opacity:.4}
.voice-dur{font-size:12px;opacity:.8}
.file-card{display:flex;align-items:center;gap:11px;min-width:200px}
.file-ico{width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.15);display:grid;place-items:center;font-size:19px;flex:0 0 auto}
.msg.in .file-ico{background:var(--panel)}
.file-meta{flex:1;min-width:0}.file-name{font-size:13.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.file-size{font-size:11.5px;opacity:.7}
.file-dl{width:34px;height:34px;border-radius:9px;border:none;background:rgba(255,255,255,.15);color:inherit;cursor:pointer;font-size:15px}
.msg.in .file-dl{background:var(--panel)}

/* ---------- reactions / quote / edited / deleted ---------- */
.reactions{display:flex;gap:3px;margin-top:5px}
.reaction{background:var(--panel);border:1px solid var(--line);border-radius:11px;padding:1px 7px;font-size:13px}
.msg.out .reaction{background:rgba(255,255,255,.18);border-color:transparent}
.quote{border-left:3px solid rgba(255,255,255,.5);padding:3px 8px;margin-bottom:5px;font-size:12.5px;opacity:.8;
  background:rgba(255,255,255,.1);border-radius:6px}
.msg.in .quote{border-left-color:var(--brand);background:var(--panel)}
.edited{font-size:10px;opacity:.6;margin-right:5px;font-style:italic}
.deleted{opacity:.6;font-style:italic}

/* ---------- message menu ---------- */
.msg-menu{position:fixed;z-index:40;background:var(--panel);border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow);padding:6px;min-width:170px;animation:pop .12s ease}
.msg-menu .quick-react{display:flex;gap:2px;padding:4px;border-bottom:1px solid var(--line);margin-bottom:4px}
.msg-menu .qr{flex:1;background:none;border:none;font-size:21px;cursor:pointer;padding:5px;border-radius:8px}
.msg-menu .qr:hover{background:var(--panel2)}
.msg-menu .mi{display:block;width:100%;text-align:left;background:none;border:none;color:var(--text);
  font-size:14px;padding:9px 12px;border-radius:9px;cursor:pointer}
.msg-menu .mi:hover{background:var(--panel2)}

/* ---------- lightbox / toast ---------- */
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.9);display:grid;place-items:center;z-index:50;padding:24px;cursor:zoom-out}
.lightbox img{max-width:96vw;max-height:92vh;border-radius:8px}
#toast{position:fixed;bottom:-60px;left:50%;transform:translateX(-50%);background:var(--panel);border:1px solid var(--line);
  color:var(--text);padding:12px 22px;border-radius:24px;box-shadow:var(--shadow);z-index:60;font-size:14px;transition:bottom .3s ease}
#toast.show{bottom:28px}

/* ---------- timer chip / settings ---------- */
.chip.chip-on{color:var(--accent);border-color:rgba(56,224,200,.4)}
.settings-profile{display:flex;align-items:center;gap:16px;margin-bottom:16px}
.big-avatar{width:64px;height:64px;font-size:26px}
.settings-avatar-pick{flex:1}
.avatar-input{width:80px !important;text-align:center;font-size:22px}
.mini-label{display:block;font-size:11px;color:var(--muted);margin:12px 0 5px;text-transform:uppercase;letter-spacing:.5px}
#modal-settings input:not(.avatar-input){width:100%}
.set-row{display:flex;align-items:center;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}
.mini-select{background:var(--bg2);border:1px solid var(--line);color:var(--text);border-radius:9px;padding:7px 10px;font-size:13px}

/* ---------- call overlay ---------- */
.call-overlay{position:fixed;inset:0;z-index:70;background:linear-gradient(180deg,#0d1424,#070a12);
  display:flex;flex-direction:column;align-items:center;justify-content:center}
.call-remote{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;background:#000;display:none}
.call-overlay.video[data-state="connected"] .call-remote{display:block}
.call-local{position:absolute;top:20px;right:20px;width:110px;height:150px;object-fit:cover;border-radius:14px;
  border:2px solid rgba(255,255,255,.2);background:#000;display:none;z-index:2}
.call-overlay.video .call-local{display:block}
.call-info{position:relative;z-index:1;text-align:center;color:#fff}
.call-overlay.video[data-state="connected"] .call-info{position:absolute;top:30px;left:0;right:0;text-shadow:0 2px 8px rgba(0,0,0,.6)}
.call-avatar-big{width:110px;height:110px;font-size:44px;margin:0 auto 20px;box-shadow:0 12px 40px rgba(0,0,0,.5)}
.call-overlay.video[data-state="connected"] .call-avatar-big{display:none}
.call-name{font-size:26px;font-weight:700}
.call-status{font-size:15px;color:var(--muted);margin-top:6px}
.call-overlay.video[data-state="connected"] .call-status{color:rgba(255,255,255,.85)}
.call-e2e{margin-top:18px;font-size:12px;color:var(--accent)}
.call-actions{position:absolute;bottom:48px;display:flex;gap:22px;z-index:3}
.call-btn{width:64px;height:64px;border-radius:50%;border:none;font-size:24px;cursor:pointer;color:#fff;
  display:grid;place-items:center;transition:transform .1s,filter .15s}
.call-btn:active{transform:scale(.9)}
.call-btn.accept{background:var(--ok)}
.call-btn.decline{background:var(--danger)}
.call-btn.ctrl{background:rgba(255,255,255,.15);backdrop-filter:blur(8px)}
.call-btn.ctrl.off{background:#fff;color:#111}

/* ---------- groups ---------- */
.msg-sender{display:block;font-size:12px;font-weight:700;margin-bottom:3px}
.group-members{max-height:240px;overflow-y:auto;margin-top:6px}
.member-row{display:flex;align-items:center;gap:10px;padding:9px 8px;border-radius:11px;cursor:pointer}
.member-row:hover{background:var(--panel2)}
.member-row input{width:18px;height:18px;accent-color:var(--brand)}
.avatar.sm{width:34px;height:34px;font-size:13px;border-radius:11px}

/* ---------- unbreakable book exchange + security tier ---------- */
.sec-tier-note{font-size:12.5px;color:var(--muted);line-height:1.5;margin:0 0 14px}
.book-tabs{display:flex;gap:6px;margin:8px 0 14px}
.book-tab{flex:1;background:var(--panel2);border:1px solid var(--line);color:var(--muted);border-radius:10px;padding:9px;font-size:13px;font-weight:600;cursor:pointer}
.book-tab.active{background:var(--grad);color:#fff;border-color:transparent}
.book-qr{display:grid;place-items:center;background:#fff;border-radius:14px;padding:14px;margin-top:6px}
.book-qr img{width:240px;height:240px;image-rendering:pixelated}
.book-row{display:flex;gap:10px;margin-top:14px;justify-content:center}
.book-scan{width:100%;max-width:280px;border-radius:14px;background:#000;margin:0 auto;display:block}

/* ========== custom icons + refined visual system ========== */
.ic{display:block;flex:0 0 auto;stroke:currentColor}
.icon-btn .ic{width:20px;height:20px}
.icon-btn.accent{color:var(--brand)}
.icon-btn{transition:background .15s,color .15s,transform .08s}
.icon-btn:active{transform:scale(.92)}
.chip{gap:6px;align-items:center}
.chip-ic{display:inline-flex}.chip-ic .ic{width:15px;height:15px}
.chip.chip-on .chip-ic{color:var(--accent)}

/* composer: pill field with inline emoji + morphing mic/send */
.composer{gap:7px}
.composer-field{flex:1;display:flex;align-items:center;background:var(--bg2);border:1px solid var(--line);
  border-radius:23px;padding:0 5px 0 6px;transition:border .15s,box-shadow .15s;min-width:0}
.composer-field:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(110,168,254,.15)}
.composer-field input{flex:1;min-width:0;background:none;border:none;padding:12px 6px;font-size:15px;color:var(--text);outline:none}
.comp-btn{width:42px;height:42px;flex:0 0 auto;border:none;border-radius:50%;background:transparent;color:var(--muted);
  cursor:pointer;display:grid;place-items:center;transition:background .15s,color .15s,transform .08s}
.comp-btn:hover{background:var(--panel2);color:var(--text)}.comp-btn:active{transform:scale(.9)}
.comp-btn .ic{width:23px;height:23px}
.inline-emoji{width:36px;height:36px}.inline-emoji .ic{width:22px;height:22px}
.send-btn{width:46px;height:46px;flex:0 0 auto;border:none;border-radius:50%;background:var(--grad);color:#fff;
  cursor:pointer;display:grid;place-items:center;box-shadow:0 6px 18px rgba(90,110,240,.4);transition:transform .12s,box-shadow .15s}
.send-btn:active{transform:scale(.9)}.send-btn .ic{width:21px;height:21px}
.send-btn.send{display:none}
.composer.has-text .send-btn.mic{display:none}
.composer.has-text .send-btn.send{display:grid}
.comp-btn.recording,.send-btn.mic.recording{background:var(--danger);color:#fff;box-shadow:0 0 0 0 rgba(255,107,125,.5);animation:pulse 1s infinite}

/* subtle chat backdrop (like a messenger wallpaper, very faint) */
.messages{background-image:radial-gradient(circle at 1px 1px, rgba(255,255,255,.022) 1px, transparent 0);background-size:24px 24px}
:root[data-theme="light"] .messages{background-image:radial-gradient(circle at 1px 1px, rgba(30,50,90,.03) 1px, transparent 0)}
.msg{box-shadow:0 1px 2px rgba(0,0,0,.14)}
.msg.out{box-shadow:0 2px 8px rgba(90,110,240,.28)}

/* message tick marks (double-check) */
.tick{display:inline-flex;align-items:center;margin-left:4px;vertical-align:middle}
.tick .ic{width:14px;height:14px;stroke-width:2.4}
.tick .ic:last-child{margin-left:-9px}
.tick.read{color:#7fe9ff}.tick.fail{color:#ffd0d0}

/* message action menu with icons */
.msg-menu .mi{display:flex;align-items:center;gap:11px}
.msg-menu .mi .ic{width:17px;height:17px;color:var(--muted)}

/* media control icons */
.voice-play .ic,.file-dl .ic{width:16px;height:16px}
.file-ico .ic{width:20px;height:20px;color:var(--text)}
.media-loading .ic{width:30px;height:30px;color:var(--muted2)}

/* ---------- responsive ---------- */
.only-mobile{display:none}
@media(max-width:760px){
  .app{grid-template-columns:1fr}
  .sidebar{position:absolute;inset:0;z-index:5}
  .conversation{position:absolute;inset:0;z-index:6;transform:translateX(100%);transition:transform .22s ease}
  .app.show-chat .conversation{transform:none}
  .only-mobile{display:grid}
  .msg{max-width:82%}
}
::-webkit-scrollbar{width:9px}::-webkit-scrollbar-thumb{background:var(--line);border-radius:8px}