/* Local system fonts and assets keep the interface compatible with the CSP. */
:root{color-scheme:dark;--bg:#0c1421;--panel:#121e2e;--input:#1b2a3e;--text:#edf3fa;--muted:#98a9bd;--blue:#82c9f5;--line:#ffffff12;--ease:cubic-bezier(.2,.8,.2,1)}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC",sans-serif;-webkit-font-smoothing:antialiased}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer;border:1px solid transparent;border-radius:12px;padding:11px 17px;background:var(--input);color:var(--text);min-height:44px;touch-action:manipulation;transition:background .18s,border-color .18s,transform .18s var(--ease),box-shadow .18s}button:active:not(:disabled){transform:scale(.97)}button:disabled{opacity:.45;cursor:default}[hidden]{display:none!important}:focus-visible{outline:2px solid var(--blue);outline-offset:3px}input,textarea,select{display:block;width:100%;min-width:0;border:1px solid #ffffff16;border-radius:12px;background:#0c1625;color:var(--text);padding:12px;outline:none;transition:border-color .2s,box-shadow .2s}input:focus,textarea:focus,select:focus{border-color:#82c9f580;box-shadow:0 0 0 3px #82c9f510}input::placeholder,textarea::placeholder{color:#6f839d}textarea{resize:vertical}label{display:block;margin:19px 0 10px;font-size:13px;font-weight:500}label input,label textarea,label select{margin-top:8px}.primary{background:linear-gradient(120deg,#a1def7,#79bbf1);color:#0c263b;font-weight:650;box-shadow:0 4px 16px #65b9ff14}.danger{color:#ffabab;background:#ff85850c;border-color:#ff85851a}.muted{color:var(--muted)}.small{font-size:12px}.error{color:#ffabab;min-height:24px;margin-top:15px;font-size:13px}h1,h2,h3,p{overflow-wrap:anywhere}a{color:var(--blue);text-underline-offset:4px}.gate{min-height:100vh;min-height:100dvh;display:grid;place-items:center;padding:40px 24px;background:radial-gradient(ellipse at 15% 10%,#31577f25,transparent 50%),radial-gradient(ellipse at 90% 90%,#39736818,transparent 48%)}.auth-card{max-width:450px;width:100%;padding:36px;border:1px solid #ffffff12;border-radius:28px;background:linear-gradient(145deg,#17263a,#101b2b);box-shadow:0 30px 100px #0005;animation:rise-in .45s var(--ease) both}.eyebrow{text-align:center;font-size:10px;font-weight:650;letter-spacing:3px;color:#8fa8c2;margin-bottom:28px}.auth-card h1{text-align:center;font-size:32px;line-height:1.2;letter-spacing:-1px;margin:24px 0 14px}.brand-dot{color:#91d9e5}.auth-card>.muted{text-align:center;font-size:13px;line-height:1.9}.auth-card .primary{width:100%;margin-top:10px}.logo{width:68px;height:68px;margin:0 auto 20px;display:grid;place-items:center;background:linear-gradient(145deg,#93d6ec,#6cacf2);border:1px solid #ffffff40;border-radius:22px;font-size:34px;color:#10364d;box-shadow:0 8px 30px #73bcf51a;transform:rotate(-6deg)}.tabs{display:flex;gap:4px;margin:28px 0 24px;padding:5px;background:#0b1524;border:1px solid var(--line);border-radius:14px}.tabs button{flex:1;background:transparent;color:var(--muted);font-size:13px;min-height:42px;padding:8px}.tabs .active{color:var(--text);background:#22344b;box-shadow:0 2px 6px #0002}.auth-footnote{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;padding-top:18px;border-top:1px solid var(--line);font-size:10px;color:#8096ae}.auth-footnote span::before{content:'·';color:#8bd4d9;margin-right:6px}.phrase-box{font:18px/1.9 monospace;word-spacing:5px;padding:20px;background:var(--bg);border:1px solid var(--line);border-radius:14px;user-select:all;margin:25px 0;overflow-wrap:anywhere}.check{display:flex;gap:10px;align-items:center}.check input{width:20px;height:20px;margin:0;accent-color:var(--blue);flex-shrink:0}
#app{display:flex;height:100vh;height:100dvh;max-width:1600px;margin:auto;background:var(--panel);overflow:hidden}aside{width:320px;flex-shrink:0;display:flex;flex-direction:column;min-height:0;background:linear-gradient(180deg,#152235,#111c2c);border-right:1px solid var(--line)}header{display:flex;align-items:center;gap:12px;padding:16px}h2,h3{margin:0}header h2{font-size:19px;flex:1;letter-spacing:-.4px}.icon{display:inline-grid;place-items:center;min-width:44px;min-height:44px;background:transparent;padding:5px 8px;font-size:24px;line-height:1;color:#a8bdd3;border-radius:12px}.search{padding:4px 18px 16px}.search input{border:1px solid var(--line);border-radius:12px;padding:11px 14px;background:#0e1928;font-size:13px}#contacts{overflow:auto;flex:1;padding:0 10px;overscroll-behavior:contain}.contact{display:flex;width:100%;align-items:center;text-align:left;padding:13px 12px;gap:12px;margin-bottom:4px;background:transparent;border-radius:14px}.contact.active{background:#82c9f512;border-color:#82c9f522}.avatar{width:44px;height:44px;flex-shrink:0;display:grid;place-items:center;border-radius:16px;background:linear-gradient(145deg,#81c9c4,#5c83bd);color:#0e263e;font-size:14px;font-weight:700}.contact .name{font-weight:550;font-size:14px}.contact .sub{font-size:11px;color:var(--muted);margin-top:3px}.contact>div:last-child{min-width:0;overflow-wrap:anywhere}aside footer{display:flex;justify-content:space-between;align-items:center;padding:10px 18px;padding-bottom:max(10px,env(safe-area-inset-bottom));font-size:11px;color:var(--muted);border-top:1px solid var(--line)}aside footer button{background:transparent;color:var(--muted);font-size:12px}#connection::before{content:'';display:inline-block;width:6px;height:6px;margin-right:8px;border-radius:50%;background:#91b4c4}.no-contacts{padding:30px 18px;text-align:center;font-size:13px;line-height:1.9}
main{flex:1;min-width:0;min-height:0;background:radial-gradient(ellipse at 80% 0,#34598518,transparent 65%),#0c1522}#empty{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:30px;animation:rise-in .35s var(--ease)}#empty .logo{width:80px;height:80px;font-size:40px;margin-bottom:30px}#empty h2{font-size:24px;letter-spacing:-.7px}#empty p{color:var(--muted);font-size:13px;max-width:280px;line-height:1.9;margin:14px 0 28px}#conversation{display:flex;height:100%;min-height:0;flex-direction:column}.chat-header{background:#142133;border-bottom:1px solid var(--line);min-height:80px;flex-shrink:0;padding:14px 24px}.chat-header h3{font-size:15px;font-weight:650}.chat-header .small{font-size:11px}.chat-header>div:nth-of-type(2){flex:1;min-width:0}#back{display:none}#messages{flex:1;min-height:0;overflow:auto;display:flex;flex-direction:column;gap:10px;padding:28px max(24px,calc((100% - 780px)/2));overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#35465c transparent}.bubble{max-width:78%;padding:11px 14px 7px;background:#1b2a3b;border:1px solid #ffffff08;border-radius:18px 18px 18px 5px;align-self:flex-start;box-shadow:0 3px 10px #00000010;overflow-wrap:anywhere;position:relative;flex-shrink:0}.bubble.mine{background:linear-gradient(120deg,#234362,#264d6c);border-color:#91cfff12;align-self:flex-end;border-radius:18px 18px 5px 18px}.bubble:first-of-type{margin-top:auto}.bubble.is-new{transform-origin:bottom left;animation:message-receive .38s cubic-bezier(.22,.75,.25,1) both}.bubble.mine.is-new{transform-origin:bottom right;animation-name:message-send}.bubble.is-new .meta{animation:fade-in .2s ease .12s both}.body{white-space:pre-wrap;font-size:14px;line-height:1.75}.meta{display:flex;align-items:center;gap:6px;justify-content:flex-end;color:#a0b8d0;font-size:10px;margin-top:3px}.msg-menu{font-size:20px;min-width:44px;min-height:32px;padding:0 5px;background:transparent;color:#adc2d6}.message-actions{display:flex;gap:6px;flex-wrap:wrap;margin-top:6px;padding-top:8px;border-top:1px solid #ffffff12;animation:rise-in .18s var(--ease)}.message-actions button{font-size:12px;padding:6px 10px;min-height:40px;background:#ffffff0b}.message-actions button:last-child{color:#ffc0bd}.older{align-self:center;font-size:12px;background:#1b2b3e;border:1px solid var(--line);margin-bottom:10px}.date{align-self:center;background:#182533bb;padding:3px 12px;font-size:11px;border-radius:20px;color:#a8bccb}
#composer{display:flex;gap:10px;padding:16px max(20px,calc((100% - 820px)/2));padding-bottom:max(16px,env(safe-area-inset-bottom));background:#121f30;border-top:1px solid var(--line);align-items:flex-end;flex-shrink:0}#message{background:#1b2a3e;border:1px solid #ffffff0a;resize:none;max-height:150px;min-height:48px;padding:12px;line-height:24px;font-size:15px;overflow-y:auto;field-sizing:content}.send{border-radius:16px;width:48px;height:48px;flex-shrink:0;background:linear-gradient(145deg,#a1def7,#79bbf1);color:#15364e;font-size:22px;padding:0;box-shadow:0 3px 15px #73bcf51a}#editing{padding:10px 24px;background:#192c42;border-top:1px solid #82c9f530;display:flex;justify-content:space-between;align-items:center;color:var(--blue);font-size:12px;flex-shrink:0;animation:rise-in .18s var(--ease)}#editing button{background:transparent;padding:4px 8px;color:var(--muted)}#emoji-picker{background:#142133;border-top:1px solid var(--line);padding:12px max(16px,calc((100% - 780px)/2));display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:4px;max-height:220px;overflow:auto;flex-shrink:0;animation:rise-in .18s var(--ease)}#emoji-picker button{background:transparent;font-size:24px;padding:6px;min-width:0}#emoji-toggle{height:48px;flex-shrink:0}
dialog{background:linear-gradient(145deg,#17263a,#111d2d);color:var(--text);border:1px solid #ffffff18;border-radius:24px;width:min(480px,calc(100% - 32px));padding:28px;max-height:85vh;max-height:85dvh;overflow:auto;box-shadow:0 30px 100px #0008;overscroll-behavior:contain}dialog[open]{animation:rise-in .25s var(--ease)}dialog::backdrop{background:#050b16bb;backdrop-filter:blur(5px);animation:fade-in .2s}dialog header{padding:0 0 10px}dialog header h2{flex:1;font-size:19px}dialog p{font-size:13px;line-height:1.8}dialog code{display:block;font-size:12px;word-break:break-all;background:var(--bg);padding:14px;border:1px solid var(--line);border-radius:12px}.actions{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}.actions button{flex:1}#toast{position:fixed;bottom:max(25px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);background:#243b51;border:1px solid #ffffff18;border-radius:14px;padding:12px 20px;z-index:10;width:max-content;max-width:90%;font-size:13px;box-shadow:0 10px 40px #0005;animation:toast-in .2s var(--ease);pointer-events:none}
.admin-gate{align-items:start;padding-top:40px}.admin-panel{width:min(940px,100%);margin:auto;animation:rise-in .3s var(--ease)}.admin-panel>header{padding:0 0 24px;justify-content:space-between}.admin-panel h1{margin:0;font-size:28px;letter-spacing:-.7px}.admin-panel header p{margin:6px 0}.admin-section{background:linear-gradient(130deg,#17263a,#121e2e);border:1px solid var(--line);border-radius:20px;padding:24px;margin-bottom:18px}.admin-section h2{font-size:18px}.admin-section-title{display:flex;align-items:center;justify-content:space-between;gap:12px}.admin-user{display:flex;align-items:center;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}.admin-user-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:5px}.admin-user code{overflow-wrap:anywhere;font-size:11px;color:var(--muted);user-select:all}.admin-user button{flex-shrink:0}#registration-result{display:inline-block;margin:10px 0 0 12px}#admin-more{margin-top:16px}
@media(hover:hover){button:hover:not(:disabled){background-color:#2b4059}.primary:hover:not(:disabled),.send:hover:not(:disabled){box-shadow:0 6px 24px #73bcf52b;filter:brightness(1.06)}.icon:hover:not(:disabled),.msg-menu:hover:not(:disabled){background:#ffffff08}.contact:hover:not(:disabled){background:#ffffff06}.contact.active:hover{background:#82c9f518}}
@media(max-width:700px){body{font-size:14px}input,textarea,select{font-size:16px}aside{width:100%;border:0}aside>header{padding-top:max(14px,env(safe-area-inset-top))}main{display:none}#app.chat-open aside{display:none}#app.chat-open main{display:block;width:100%}#app.chat-open #conversation{animation:room-in .22s var(--ease)}#back{display:inline-grid}.chat-header{padding:10px 12px;padding-top:max(10px,env(safe-area-inset-top));min-height:74px;gap:8px}.chat-header .small{font-size:10px}.chat-header .avatar{width:40px;height:40px;border-radius:14px}#messages{padding:18px 12px;gap:9px}.bubble{max-width:87%;padding:10px 12px 6px}.msg-menu{min-height:40px}#composer{padding:10px;gap:6px;padding-bottom:max(10px,env(safe-area-inset-bottom))}#message{font-size:16px}.send{width:46px;height:48px}#emoji-toggle{min-width:40px;padding:4px}#editing{padding:6px 12px}#emoji-picker{grid-template-columns:repeat(6,minmax(0,1fr));padding:10px}.auth-card{padding:28px 24px;border-radius:24px}.auth-card h1{font-size:30px}.gate{padding:24px 16px;padding-top:max(24px,env(safe-area-inset-top));padding-bottom:max(24px,env(safe-area-inset-bottom))}.auth-footnote{gap:10px}dialog{padding:22px;border-radius:22px;max-height:80dvh}.phrase-box{font-size:16px}.admin-gate{padding:18px 12px}.admin-panel>header{gap:10px;align-items:flex-start}.admin-panel h1{font-size:23px}.admin-user{align-items:flex-start;gap:10px}.admin-user button{font-size:12px;padding:8px 10px}.admin-section{padding:18px;border-radius:18px}.admin-section p{font-size:13px}#registration-result{margin-left:0;display:block}}
@keyframes rise-in{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes fade-in{from{opacity:0}to{opacity:1}}@keyframes message-receive{0%{opacity:0;transform:translate(-14px,18px) scale(.88)}65%{opacity:1;transform:translate(0,-1px) scale(1.012)}100%{opacity:1;transform:none}}@keyframes message-send{0%{opacity:0;transform:translate(14px,22px) scale(.86)}65%{opacity:1;transform:translate(0,-1px) scale(1.012)}100%{opacity:1;transform:none}}@keyframes room-in{from{opacity:.5;transform:translateX(12px)}to{opacity:1;transform:none}}@keyframes toast-in{from{opacity:0;transform:translate(-50%,8px)}to{opacity:1;transform:translate(-50%,0)}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

.purpose-title{display:inline-block;font-size:15px;font-weight:600;color:#d6e7f5;letter-spacing:.5px}.purpose-notice{color:#aec2d6;font-size:12px}

.browser-account{padding:12px 14px;border:1px solid #82c9f526;border-radius:12px;background:#82c9f508;color:#b6d4ec;font-size:12px;text-align:center;margin:0 0 8px}.switch-account{display:block;margin:0 auto 12px;background:transparent;color:var(--muted);font-size:12px}.remember-check{color:var(--muted);font-size:12px;font-weight:400;margin:20px 0 8px}.browser-controls{margin-top:24px;padding-top:18px;border-top:1px solid var(--line)}

.invite-details{margin-top:18px;border:1px solid var(--line);border-radius:12px;padding:12px}.invite-details summary{cursor:pointer;color:var(--muted);font-size:12px;min-height:28px}.conversation-access{padding:12px max(20px,calc((100% - 820px)/2));background:#273245;border-top:1px solid #82c9f526;flex-shrink:0;max-height:35dvh;overflow:auto}.conversation-access p{font-size:12px;color:#c2d4e8;margin:0 0 8px;line-height:1.7}.conversation-access button{font-size:12px;background:#395574;color:#e6f1fa}#message:disabled{opacity:.5}.clear-conversation-section{margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}.clear-conversation-section h3{font-size:15px}.clear-conversation-section button{width:100%}#public-key{font:12px/1.8 monospace;overflow-wrap:anywhere;resize:none}.contact .name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-header h3{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}@media(max-width:700px){.conversation-access{padding:12px}.chat-header>div:nth-of-type(2){overflow:hidden}.clear-conversation-section{margin-top:18px}}