:root{font-family:Tahoma,"Segoe UI",Arial,sans-serif;--bg:#eef2f7;--surface:#fff;--surface2:#f7f9fc;--text:#172033;--muted:#7a8498;--line:#e8edf4;--accent:#635bff;--accent2:#7c3aed;--mine:#635bff;--other:#fff;--shadow:0 18px 55px rgba(27,39,75,.10);--radius:22px;color-scheme:light}*{box-sizing:border-box}html,body{height:100%}body{margin:0;background:var(--bg);color:var(--text);overflow:hidden}body.dark{--bg:#0b1020;--surface:#11182a;--surface2:#171f33;--text:#f4f7ff;--muted:#93a0b7;--line:#202b43;--other:#171f33;--shadow:0 18px 55px rgba(0,0,0,.28);color-scheme:dark}button,input{font:inherit}.ambient{position:fixed;border-radius:999px;filter:blur(70px);opacity:.24;pointer-events:none}.a1{width:360px;height:360px;background:#7c3aed;right:-130px;top:-130px}.a2{width:320px;height:320px;background:#3b82f6;left:-120px;bottom:-120px}main{position:relative;z-index:1;height:100%;max-width:1500px;margin:auto}.auth-shell{min-height:100%;display:grid;place-content:center;gap:20px;padding:24px}.auth-brand{display:flex;align-items:center;gap:12px;justify-content:center}.brand-mark{width:52px;height:52px;border-radius:18px;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),var(--accent2));color:white;font-size:24px;font-weight:900;box-shadow:0 12px 30px rgba(99,91,255,.28)}.auth-brand h1{font-size:20px;margin:0}.auth-brand p{margin:4px 0 0;color:var(--muted);font-size:12px}.auth-card{width:min(430px,calc(100vw - 32px));padding:30px;background:color-mix(in srgb,var(--surface) 92%,transparent);backdrop-filter:blur(18px);border:1px solid color-mix(in srgb,var(--line) 80%,transparent);border-radius:30px;box-shadow:var(--shadow)}.auth-icon{width:48px;height:48px;border-radius:16px;display:grid;place-items:center;background:rgba(99,91,255,.11);color:var(--accent);font-size:22px}.auth-card h2{margin:18px 0 7px;font-size:24px}.muted{color:var(--muted);margin:0 0 22px;font-size:13px}.field{display:block;margin:12px 0}.field span{display:block;font-size:12px;font-weight:700;margin:0 4px 7px}.field input{width:100%;height:50px;border:1px solid var(--line);border-radius:15px;background:var(--surface2);color:var(--text);padding:0 15px;outline:0;transition:.2s}.field input:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(99,91,255,.10)}.auth-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:18px}.primary,.ghost{height:48px;border:0;border-radius:15px;font-weight:800;cursor:pointer}.primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;box-shadow:0 10px 25px rgba(99,91,255,.22)}.ghost{background:var(--surface2);color:var(--text);border:1px solid var(--line)}.auth-msg{display:block;min-height:20px;margin-top:12px;color:#ef4444;line-height:1.8}.privacy-line{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);display:flex;gap:8px;color:var(--muted);font-size:11px;line-height:1.8}.app-shell{height:100dvh;background:var(--surface);box-shadow:var(--shadow);overflow:hidden}.topbar{height:72px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid var(--line);background:var(--surface);position:relative;z-index:20}.account{display:flex;align-items:center;gap:10px}.avatar{flex:0 0 auto;width:42px;height:42px;border-radius:15px;display:grid;place-items:center;background:linear-gradient(135deg,#8b5cf6,#4f46e5);color:#fff;font-weight:900;box-shadow:0 8px 20px rgba(79,70,229,.18)}.account-copy{display:flex;flex-direction:column;gap:2px}.account-copy small,.chat-person small{color:var(--muted);font-size:11px}.top-actions{display:flex;gap:7px}.icon-btn,.round-btn,.composer-icon{border:1px solid var(--line);background:var(--surface2);color:var(--text);cursor:pointer;display:grid;place-items:center;text-decoration:none}.icon-btn{width:40px;height:40px;border-radius:13px}.icon-btn:hover,.composer-icon:hover{background:color-mix(in srgb,var(--accent) 8%,var(--surface2));border-color:color-mix(in srgb,var(--accent) 30%,var(--line))}.danger-soft{color:#ef4444}.mobile-brand{display:none}.layout{height:calc(100dvh - 72px);display:grid;grid-template-columns:330px minmax(0,1fr)}aside{min-width:0;border-left:1px solid var(--line);background:var(--surface);display:flex;flex-direction:column;padding:18px 14px 12px;overflow:hidden}.side-head{display:flex;justify-content:space-between;align-items:center;padding:2px 6px 15px}.side-head h2{margin:0;font-size:20px}.side-head small{display:block;color:var(--muted);margin-top:3px;font-size:11px}.round-btn{width:38px;height:38px;border-radius:13px;font-size:20px}.search-box{height:44px;border:1px solid var(--line);background:var(--surface2);border-radius:14px;display:flex;align-items:center;gap:8px;padding:0 12px;margin-bottom:15px;color:var(--muted)}.search-box input{min-width:0;flex:1;border:0;outline:0;background:transparent;color:var(--text)}.section-label{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:11px;font-weight:700;padding:0 7px 8px}.live-pill{background:#ecfdf5;color:#059669;padding:3px 7px;border-radius:99px}.people{overflow:auto;flex:1;padding-left:3px}.person{position:relative;padding:12px 56px 12px 12px;border-radius:17px;cursor:pointer;min-height:58px;display:flex;align-items:center;font-weight:700;transition:.18s}.person:before{content:attr(data-initial);position:absolute;right:7px;width:40px;height:40px;border-radius:14px;background:linear-gradient(135deg,#06b6d4,#4f46e5);display:grid;place-items:center;color:#fff}.person:after{content:"گفتگوی رمزنگاری‌شده";display:block;position:absolute;right:56px;bottom:8px;color:var(--muted);font-size:10px;font-weight:400}.person:hover,.person.active{background:var(--surface2)}.person.active{color:var(--accent)}.people:empty:after{content:"هنوز کاربر دیگری برای گفتگو وجود ندارد.";display:block;text-align:center;color:var(--muted);font-size:12px;line-height:2;padding:34px 16px}.side-foot{border-top:1px solid var(--line);padding:12px 7px 0;display:flex;flex-direction:column;gap:3px;color:#10b981;font-size:11px}.side-foot small{color:var(--muted);font-size:9px}.chat{min-width:0;position:relative;display:grid;grid-template-rows:68px auto minmax(0,1fr) auto auto 72px;background:linear-gradient(180deg,var(--surface2),var(--bg))}.chat-head{display:flex;align-items:center;gap:11px;padding:0 17px;background:var(--surface);border-bottom:1px solid var(--line);z-index:4}.peer-avatar{width:43px;height:43px}.chat-person{min-width:0;flex:1;display:flex;flex-direction:column}.chat-person strong{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-tools{display:flex;gap:7px}.back-btn{display:none}.security-note{padding:5px 18px;color:var(--muted);font-size:9px;background:var(--surface);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.security-note:empty{display:none}.empty-chat{position:absolute;inset:68px 0 72px;display:grid;place-content:center;justify-items:center;text-align:center;padding:24px;color:var(--muted);pointer-events:none}.empty-chat h2{color:var(--text);margin:14px 0 6px}.empty-chat p{max-width:360px;line-height:1.9;font-size:13px}.empty-orb{width:80px;height:80px;border-radius:28px;display:grid;place-items:center;font-size:30px;color:#fff;background:linear-gradient(135deg,var(--accent),#06b6d4);box-shadow:0 20px 50px rgba(99,91,255,.22)}.feature-chips{display:flex;gap:7px;margin-top:12px}.feature-chips span{padding:7px 10px;border:1px solid var(--line);border-radius:99px;background:var(--surface);font-size:10px}#msgs{position:relative;z-index:2;overflow:auto;padding:22px 24px 12px;scroll-behavior:smooth}.msg{position:relative;max-width:min(72%,620px);width:max-content;min-width:72px;margin:8px 0 8px auto;padding:10px 13px 8px;background:var(--other);border:1px solid var(--line);border-radius:18px 18px 5px 18px;box-shadow:0 5px 18px rgba(27,39,75,.05);white-space:pre-wrap;line-height:1.8;font-size:13px}.msg.mine{margin-right:auto;margin-left:0;background:linear-gradient(135deg,var(--mine),#7559ef);color:#fff;border:0;border-radius:18px 18px 18px 5px;box-shadow:0 8px 24px rgba(99,91,255,.16)}.meta{font-size:9px;color:var(--muted);margin-top:5px;text-align:left;opacity:.8}.mine .meta{color:rgba(255,255,255,.78)}.media{display:block;max-width:min(320px,65vw);max-height:360px;border-radius:13px;margin:1px 0 5px}.msg a{color:inherit;font-weight:700}.reply-bar{margin:0 14px;padding:9px 12px;border-right:3px solid var(--accent);background:var(--surface);border-radius:12px;display:flex;justify-content:space-between;align-items:center}.reply-bar div{display:flex;flex-direction:column}.reply-bar small{color:var(--accent);font-weight:800}.reply-bar span{font-size:11px;color:var(--muted)}.reply-bar button{border:0;background:transparent;color:var(--muted);font-size:22px}.emoji-panel{position:absolute;bottom:77px;right:75px;z-index:12;width:240px;padding:10px;display:grid;grid-template-columns:repeat(6,1fr);gap:5px;background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.emoji-panel button{border:0;background:transparent;font-size:21px;padding:5px;border-radius:8px;cursor:pointer}.emoji-panel button:hover{background:var(--surface2)}.composer{position:relative;z-index:5;display:flex;align-items:center;gap:8px;padding:10px 14px max(10px,env(safe-area-inset-bottom));background:var(--surface);border-top:1px solid var(--line)}.composer-icon{width:43px;height:43px;border-radius:14px;font-size:20px}.text-wrap{min-width:0;flex:1;height:46px;border:1px solid var(--line);background:var(--surface2);border-radius:16px;display:flex;align-items:center}.text-wrap input{width:100%;height:100%;border:0;outline:0;background:transparent;color:var(--text);padding:0 15px}.send-btn{width:46px;height:46px;border:0;border-radius:15px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;display:grid;place-items:center;cursor:pointer;box-shadow:0 8px 20px rgba(99,91,255,.24)}.send-btn span{transform:rotate(180deg);font-size:18px}.attach-wrap{position:relative}.attach-menu{position:absolute;bottom:55px;right:0;width:190px;background:var(--surface);border:1px solid var(--line);border-radius:17px;padding:7px;box-shadow:var(--shadow)}.attach-item{width:100%;border:0;background:transparent;color:var(--text);padding:9px;border-radius:11px;display:flex;align-items:center;gap:10px;cursor:pointer;text-align:right}.attach-item:hover{background:var(--surface2)}.attach-symbol{width:31px;height:31px;border-radius:10px;display:grid;place-items:center;background:rgba(99,91,255,.10);color:var(--accent);font-size:16px}.toast{position:fixed;z-index:100;left:50%;bottom:90px;transform:translateX(-50%);background:#111827;color:#fff;padding:10px 15px;border-radius:12px;box-shadow:var(--shadow);font-size:12px}.modal{position:fixed;z-index:90;inset:0;background:rgba(5,10,20,.48);backdrop-filter:blur(5px);display:grid;place-items:center;padding:20px}.modal-card{position:relative;width:min(430px,100%);background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:27px;box-shadow:var(--shadow);text-align:center}.modal-close{position:absolute;left:13px;top:10px;border:0;background:transparent;color:var(--muted);font-size:26px}.modal-icon{margin:auto;width:54px;height:54px;border-radius:17px;display:grid;place-items:center;background:rgba(99,91,255,.10);color:var(--accent);font-size:25px}.modal-card p{color:var(--muted);font-size:12px;line-height:1.9}.modal-card code{display:block;direction:ltr;background:var(--surface2);border:1px solid var(--line);padding:12px;border-radius:12px;word-break:break-all;font-size:11px}.admin-btn{display:grid}.mobile-brand{align-items:center;gap:7px}.brand-dot{width:10px;height:10px;border-radius:99px;background:linear-gradient(135deg,var(--accent),#06b6d4)}
[hidden]{display:none!important}
@media(max-width:720px){body{background:var(--surface)}main{max-width:none}.app-shell{box-shadow:none}.topbar{height:60px;padding:0 11px}.account{display:none}.mobile-brand{display:flex}.top-actions{gap:4px}.top-actions .icon-btn{width:36px;height:36px;border-radius:12px}.layout{height:calc(100dvh - 60px);display:block;position:relative}.layout aside,.layout .chat{position:absolute;inset:0}.layout aside{z-index:8;border:0;padding:15px 12px 10px;transition:transform .25s ease}.layout .chat{z-index:7;grid-template-rows:62px auto minmax(0,1fr) auto auto 68px;transform:translateX(-102%);transition:transform .25s ease}.app-shell.chat-open aside{transform:translateX(102%)}.app-shell.chat-open .chat{transform:translateX(0)}.back-btn{display:grid}.chat-head{padding:0 9px;gap:8px}.chat-tools{gap:3px}.chat-tools .icon-btn{width:36px;height:36px}.peer-avatar{width:39px;height:39px;border-radius:13px}.security-note{padding:4px 12px}.empty-chat{inset:62px 0 68px}.composer{padding:8px 9px max(8px,env(safe-area-inset-bottom));gap:6px}.composer-icon{width:40px;height:40px}.send-btn{width:43px;height:43px}.text-wrap{height:43px}.emoji-panel{right:53px;bottom:70px}.msg{max-width:86%;font-size:13px}#msgs{padding:16px 11px 10px}.auth-shell{padding:16px}.auth-card{padding:24px 20px;border-radius:25px}.auth-actions{grid-template-columns:1fr}.side-foot{padding-bottom:max(3px,env(safe-area-inset-bottom))}}
@media(min-width:721px) and (max-width:980px){.layout{grid-template-columns:285px minmax(0,1fr)}}

/* PrivateChat release controls */
.reply-bar{padding:8px 12px;margin:0 8px 6px;border-radius:10px;background:rgba(127,127,127,.12);font-size:12px;cursor:pointer}
#voiceBtn,#drawBtn{border:0;background:transparent;font-size:20px;cursor:pointer;min-width:40px}
.draw-overlay{position:fixed;inset:0;z-index:99999;background:rgba(0,0,0,.72);display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:center;padding:18px}
.draw-overlay canvas{background:#fff;max-width:94vw;max-height:72vh;width:min(700px,94vw);height:auto;border-radius:16px;touch-action:none}
.draw-overlay button{padding:10px 16px;border:0;border-radius:10px;cursor:pointer}
.msg audio{max-width:260px;width:100%}.reply-preview{font-size:11px;opacity:.7;margin-bottom:5px;border-inline-start:2px solid currentColor;padding-inline-start:6px}