:root{
  --nav:#161a35; --nav2:#1e2347; --nav-text:#c6c9e0; --nav-hi:#ffffff; --accent:#14b8a6; --accent-d:#0e8f86;
  --bg:#ffffff; --text:#1d1c22; --muted:#6b6f80; --line:#e6e7ee; --hover:#f6f7fa; --mention:#fff4d6; --mention-me:#fde9a8;
  --link:#1264a3; --radius:8px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji";
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{font:15px/1.46 var(--font);color:var(--text);background:var(--nav);-webkit-font-smoothing:antialiased}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
code{font:12.5px/1.4 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:#f3f1f6;border:1px solid #e3e0ea;color:#c01c5b;padding:1px 4px;border-radius:4px}
.app{display:grid;grid-template-columns:260px 1fr;grid-template-rows:44px 1fr;height:100vh}

/* top bar */
.topbar{grid-column:1/3;display:flex;align-items:center;justify-content:space-between;background:var(--nav);padding:0 14px;color:#fff;gap:16px}
.topbar-left{display:flex;align-items:center;gap:8px;width:246px}
.logo-sm{width:24px;height:24px}
.brand{font-weight:700;letter-spacing:.2px}
.search{flex:1;max-width:680px;display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.12);border-radius:7px;padding:0 10px;height:28px;color:#cfd2ea}
.search svg{width:15px;height:15px;flex:none}
.search input{flex:1;background:transparent;border:0;outline:0;color:#fff;font:inherit;font-size:13.5px}
.search input::placeholder{color:#bfc2dc}
.search:focus-within{background:#fff;color:#555}.search:focus-within input{color:#111}
.topbar-right{width:246px;display:flex;justify-content:flex-end}
.usermenu{position:relative}
.usermenu summary{list-style:none;cursor:pointer;position:relative;display:block}
.usermenu summary::-webkit-details-marker{display:none}
.usermenu .presence{position:absolute;right:-2px;bottom:-2px;border:2px solid var(--nav)}
.menu{position:absolute;right:0;top:38px;background:#fff;color:var(--text);border-radius:10px;box-shadow:0 12px 40px rgba(10,12,40,.28);width:270px;padding:8px 0;z-index:50}
.menu a{display:block;padding:7px 18px;color:var(--text);font-size:14px}
.menu a:hover{background:var(--accent);color:#fff;text-decoration:none}
.menu-head{display:flex;gap:10px;align-items:center;padding:8px 18px 12px;border-bottom:1px solid var(--line);margin-bottom:6px}
.menu-head small{display:block;color:var(--muted)}

/* presence */
.presence{display:inline-block;width:9px;height:9px;border-radius:50%;background:#9aa0b4}
.presence.on{background:#2bac76}

/* sidebar */
.sidebar{background:var(--nav2);color:var(--nav-text);display:flex;flex-direction:column;min-height:0;border-top:1px solid rgba(255,255,255,.08);border-radius:0}
.ws{padding:14px 16px 12px;border-bottom:1px solid rgba(255,255,255,.08)}
.ws-name{color:#fff;font-weight:800;font-size:18px}
.ws-name .chev{font-size:11px;opacity:.7;margin-left:2px}
.ws-sub{font-size:13px;display:flex;align-items:center;gap:6px;margin-top:2px}
.sb-scroll{overflow-y:auto;padding:10px 8px 24px;flex:1}
.sb-section{font-size:13px;font-weight:600;color:#9fa4c4;padding:14px 10px 4px}
.sb-item{display:flex;align-items:center;gap:8px;padding:4px 10px;border-radius:6px;color:var(--nav-text);font-size:15px;height:30px}
a.sb-item:hover{background:rgba(255,255,255,.07);text-decoration:none}
.sb-item .hash{opacity:.65;width:16px;text-align:center;font-size:16px}
.sb-item .sb-label{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sb-item.unread{color:#fff;font-weight:700}
.sb-item.active{background:var(--accent);color:#fff;font-weight:600}
.sb-item.active .hash{opacity:1}
.sb-item.self em{font-style:normal;opacity:.6;font-size:13px}
.badge{background:#e0245e;color:#fff;font-size:12px;font-weight:700;border-radius:9px;padding:0 7px;line-height:18px}
.app-tag{font-size:10px;font-weight:700;background:rgba(255,255,255,.12);color:#d9dbee;padding:0 5px;border-radius:3px;line-height:16px}

/* avatars */
.avatar{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:8px;color:#fff;font-weight:700;font-size:14px;flex:none;letter-spacing:.3px;position:relative;user-select:none}
.avatar.bot{border-radius:10px;box-shadow:inset 0 0 0 2px rgba(255,255,255,.28)}
.avatar.sm{width:28px;height:28px;font-size:12px;border-radius:7px}
.avatar.xs{width:20px;height:20px;font-size:9px;border-radius:5px}
.avatar.xxs{width:22px;height:22px;font-size:9px;border-radius:5px}
.avatar.xl{width:72px;height:72px;font-size:26px;border-radius:14px}
.avatar .dot{position:absolute;right:-3px;bottom:-3px;width:9px;height:9px;border-radius:50%;border:2px solid var(--nav2);background:#9aa0b4}
.avatar .dot.on{background:#2bac76}

/* main */
.main{background:var(--bg);display:grid;grid-template-columns:1fr;min-height:0;min-width:0;border-top-left-radius:10px;overflow:hidden}
.main.with-thread{grid-template-columns:minmax(0,1fr) 420px}
.channel{display:flex;flex-direction:column;min-height:0;min-width:0}
.ch-head{display:flex;justify-content:space-between;align-items:center;padding:10px 20px;border-bottom:1px solid var(--line);min-height:58px}
.ch-head h1{margin:0;font-size:18px;font-weight:800;display:flex;align-items:center;gap:2px}
.ch-head .hash{color:var(--muted);font-weight:500}
.topic{color:var(--muted);font-size:13px;margin-top:1px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:70ch}
.ch-members{display:flex;align-items:center;border:1px solid var(--line);border-radius:7px;padding:3px 8px 3px 4px;gap:0}
.ch-members .avatar{margin-right:-4px;border:2px solid #fff;box-sizing:content-box}
.ch-members span:last-child{margin-left:10px;font-size:13px;font-weight:600;color:var(--muted)}
.messages{flex:1;overflow-y:auto;padding:8px 0 16px;min-height:0}
.messages.plain{padding:20px 24px}
.ch-intro{padding:28px 20px 12px}
.ch-intro-icon{width:56px;height:56px;border-radius:12px;background:#e7f8f5;color:var(--accent-d);display:flex;align-items:center;justify-content:center;font-size:30px;font-weight:700}
.ch-intro h2{font-size:22px;font-weight:800;margin:12px 0 4px}
.ch-intro p{margin:0;color:var(--muted)}

.day{position:relative;text-align:center;margin:18px 0 6px;height:24px}
.day:before{content:"";position:absolute;left:0;right:0;top:12px;border-top:1px solid var(--line)}
.day span{position:relative;background:#fff;border:1px solid var(--line);border-radius:14px;padding:3px 14px;font-size:13px;font-weight:700}

.msg{display:flex;gap:10px;padding:7px 20px 7px;position:relative}
.msg.compact{padding-top:1px;padding-bottom:3px}
.msg:hover{background:var(--hover)}
.msg.flash{animation:flash 2.4s ease-out}
@keyframes flash{0%{background:#d6f5ef}100%{background:transparent}}
.msg.mentions-me{background:var(--mention);box-shadow:inset 3px 0 0 #e8b931}
.msg.mentions-me:hover{background:#fff0c4}
.gutter{width:36px;flex:none;padding-top:3px}
.time-hover{display:none;font-size:11px;color:var(--muted);text-align:right;padding-top:3px;width:36px}
.msg.compact:hover .time-hover{display:block}
.content{flex:1;min-width:0}
.meta{display:flex;align-items:baseline;gap:6px;line-height:1.3}
.name{font-weight:800;font-size:15px}
.app-badge{display:inline-block;font-size:10px;font-weight:700;color:#5a5e70;background:#ebecf1;border-radius:3px;padding:1px 4px;line-height:14px;letter-spacing:.3px;vertical-align:1px}
time{font-size:12px;color:var(--muted)}
.body{word-wrap:break-word;overflow-wrap:anywhere}
.mention{background:#e8f2fb;color:#1264a3;border-radius:4px;padding:0 2px;font-weight:500}
.mention.me{background:#fbd96a;color:#5b4300}
.att-img{display:inline-block;margin-top:6px;border:1px solid var(--line);border-radius:8px;overflow:hidden;max-width:min(480px,100%);background:#fafafa}
.att-img img{display:block;max-width:100%;max-height:320px;object-fit:contain}
.att-video{margin-top:6px;max-width:min(520px,100%);border-radius:8px;overflow:hidden;border:1px solid var(--line);background:#000}
.att-video video{display:block;width:100%;max-height:320px}
.att-cap{background:#f7f7f9;color:var(--muted);font-size:12px;padding:5px 10px}
.att-file{display:inline-flex;gap:10px;align-items:center;margin-top:6px;border:1px solid var(--line);border-radius:8px;padding:8px 14px;color:var(--text)}
.att-file small{display:block;color:var(--muted)}
.card{display:block;margin-top:6px;border-left:4px solid #d0d3dc;padding:2px 0 2px 12px;max-width:560px;color:var(--text)}
.card:hover{text-decoration:none}
.card.github{border-left-color:#2da44e}
.card.hubspot{border-left-color:#ff7a59}
.card-site{display:flex;align-items:center;gap:6px;font-size:13px;font-weight:700;color:#454856}
.card-site svg{width:14px;height:14px}
.site-dot{width:12px;height:12px;border-radius:3px;background:#ff7a59}
.card-title{color:var(--link);font-weight:700;margin-top:1px}
.card:hover .card-title{text-decoration:underline}
.card-desc{font-size:14px;color:#3d3f4a}
.card-meta{font-size:12.5px;color:var(--muted);margin-top:2px}
.pill{display:inline-block;font-size:11px;font-weight:700;padding:1px 7px;border-radius:10px;vertical-align:2px;color:#fff;background:#57606a}
.pill.merged{background:#8250df}.pill.open{background:#2da44e}
.reactions{display:flex;flex-wrap:wrap;gap:4px;margin-top:5px}
.rform{margin:0}
.reaction{display:inline-flex;align-items:center;gap:4px;border:1px solid transparent;background:#eff0f4;border-radius:12px;padding:0 8px;height:24px;font:inherit;font-size:12px;font-weight:600;color:#3d3f4a;cursor:pointer}
.reaction .e{font-size:15px}
.reaction:hover{border-color:#c5c8d4;background:#fff}
.reaction.mine{background:#e3f6f3;border-color:var(--accent);color:#0b6e67}
.thread-sum{display:flex;align-items:center;gap:6px;margin-top:5px;padding:4px 8px 4px 4px;border-radius:7px;border:1px solid transparent;max-width:440px;font-size:13px}
.thread-sum:hover{background:#fff;border-color:var(--line);text-decoration:none}
.thread-sum .avatar{margin-right:-2px}
.thread-sum strong{color:var(--link);margin-left:4px}
.thread-sum .last{color:var(--muted)}
.thread-sum .view{color:var(--muted);display:none;margin-left:auto}
.thread-sum:hover .view{display:inline}

/* hover actions */
.actions{position:absolute;right:20px;top:-14px;display:none;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 2px 8px rgba(0,0,0,.08);padding:2px;gap:2px;align-items:center;z-index:5}
.msg:hover .actions,.actions:focus-within,.actions:has(details[open]){display:flex}
.actions a,.actions summary{display:flex;align-items:center;justify-content:center;width:32px;height:30px;border-radius:6px;color:#555a6b;cursor:pointer;list-style:none;font-size:18px}
.actions summary::-webkit-details-marker{display:none}
.actions summary sup{font-size:10px;margin-left:-2px}
.actions a:hover,.actions summary:hover{background:var(--hover);text-decoration:none}
.actions svg{width:18px;height:18px}
.picker{position:relative}
.picker-pop{position:absolute;right:0;top:34px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 30px rgba(0,0,0,.15);padding:6px;display:grid;grid-template-columns:repeat(5,36px);gap:2px;z-index:20}
.picker-pop form{margin:0}
.picker-pop button{width:36px;height:34px;border:0;background:none;border-radius:6px;font-size:20px;cursor:pointer}
.picker-pop button:hover{background:var(--hover)}

/* composer */
.composer{margin:0 20px 18px;border:1px solid #c9ccd6;border-radius:10px;background:#fff;transition:border-color .15s, box-shadow .15s}
.composer:focus-within{border-color:#8a8fa3;box-shadow:0 0 0 3px rgba(20,184,166,.12)}
.composer textarea{display:block;width:100%;border:0;outline:0;resize:none;font:inherit;padding:11px 14px 4px;max-height:200px;background:transparent}
.composer-bar{display:flex;align-items:center;gap:8px;padding:4px 6px 6px 8px}
.attach{display:flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:6px;cursor:pointer;color:#555a6b;position:relative}
.attach:hover{background:var(--hover)}
.attach input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%}
.attach svg{width:19px;height:19px}
.hint{flex:1;font-size:12px;color:#9a9eae}
.send{width:36px;height:30px;border:0;border-radius:6px;background:#e8e9ee;color:#9a9eae;cursor:pointer;display:flex;align-items:center;justify-content:center}
.send svg{width:16px;height:16px}
.composer.ready .send{background:var(--accent);color:#fff}
.files-preview{display:flex;flex-wrap:wrap;gap:8px;padding:0 10px}
.files-preview:not(:empty){padding-top:10px}
.chip{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:8px;padding:4px 10px 4px 4px;font-size:13px;background:#fafbfc}
.chip img{width:40px;height:40px;object-fit:cover;border-radius:5px}
.chip .ico{width:40px;height:40px;border-radius:5px;background:#e7f8f5;display:flex;align-items:center;justify-content:center}

/* thread */
.thread{border-left:1px solid var(--line);display:flex;flex-direction:column;min-height:0;background:#fff}
.th-head{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;border-bottom:1px solid var(--line);min-height:58px}
.th-head h2{margin:0;font-size:17px;font-weight:800}
.th-head small{color:var(--muted)}
.th-head .close{font-size:26px;color:var(--muted);width:34px;height:34px;display:flex;align-items:center;justify-content:center;border-radius:6px}
.th-head .close:hover{background:var(--hover);text-decoration:none}
.th-body{flex:1;overflow-y:auto;padding:10px 0}
.thread .msg{padding-left:16px;padding-right:16px}
.thread .actions{right:12px}
.th-count{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px;padding:8px 16px}
.th-count:after{content:"";flex:1;border-top:1px solid var(--line)}
.thread .composer{margin:0 16px 16px}

/* pages */
.panel{border:1px solid var(--line);border-radius:10px;padding:18px 20px;margin-bottom:18px;max-width:980px}
.panel h3{margin:0 0 10px;font-size:16px}
.panel-head{display:flex;justify-content:space-between;align-items:center}
.panel-head form{margin:0}
.profile{display:flex;gap:18px;align-items:center}
.profile h2{margin:0}.profile p{margin:2px 0}
.muted{color:var(--muted);font-size:13.5px}
.token{display:inline-block;margin-top:8px;font-size:13px}
.reveal summary{cursor:pointer;color:var(--link)}
table{border-collapse:collapse;width:100%;font-size:13.5px}
td,th{text-align:left;padding:7px 8px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:12px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.4px}
table.api td:first-child{font-weight:700;color:var(--accent-d);white-space:nowrap}
table.api td:nth-child(2){font-family:ui-monospace,Menlo,monospace;font-size:12.5px}
.settings .field{display:block;margin-bottom:12px}
.field{display:block;font-size:13px;font-weight:600;color:#3d3f4a}
.field small{font-weight:400;color:var(--muted)}
.field input{display:block;width:100%;margin-top:4px;font:inherit;font-size:14.5px;padding:8px 10px;border:1px solid #c9ccd6;border-radius:7px;outline:0;font-weight:400}
.field input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(20,184,166,.15)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.check{display:flex;gap:8px;align-items:center;font-size:14px;margin-bottom:10px}
.btns{display:flex;gap:10px;margin:6px 0 10px}
button.primary,.btnlink.primary{background:var(--accent-d);color:#fff;border:0;border-radius:7px;padding:9px 18px;font:inherit;font-weight:700;cursor:pointer;display:inline-block}
button.primary:hover{background:#0b7a72}
button.ghost{background:#fff;border:1px solid #c9ccd6;border-radius:7px;padding:8px 16px;font:inherit;font-weight:600;cursor:pointer}
button.ghost.sm{padding:4px 10px;font-size:13px}
button.ghost:hover{background:var(--hover)}
.flash{background:#e3f6f3;border:1px solid #a7e3da;color:#0b5c56;padding:9px 14px;border-radius:8px;margin-bottom:14px;max-width:980px}
.log td.url{max-width:340px;word-break:break-all}
.log pre{white-space:pre-wrap;font-size:11.5px;background:#f6f7fa;padding:8px;border-radius:6px;max-height:220px;overflow:auto}
.log details summary{cursor:pointer;color:var(--link);font-size:12px}
.status{font-size:11.5px;font-weight:700;padding:2px 8px;border-radius:10px;background:#eee;text-transform:uppercase;letter-spacing:.3px}
.status.delivered{background:#dcf5e7;color:#16794a}.status.failed{background:#fde2e2;color:#b42318}
.status.pending{background:#fff4d6;color:#8a6100}.status.skipped{background:#eceef3;color:#5a5e70}
.errtxt{color:#b42318}
.empty{color:var(--muted);text-align:center;padding:20px}
.result{display:flex;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:9px;margin-bottom:8px;color:var(--text);max-width:900px}
.result:hover{background:var(--hover);text-decoration:none}
.result .where{font-size:12.5px;color:var(--muted)}

/* login */
.login-page{background:radial-gradient(1200px 600px at 20% -10%,#2a3170 0%,var(--nav) 55%) fixed;min-height:100vh}
.login-wrap{max-width:560px;margin:0 auto;padding:48px 20px}
.login-brand{display:flex;align-items:center;justify-content:center;gap:10px;color:#fff;font-weight:800;font-size:26px;margin-bottom:26px}
.login-brand img{width:40px;height:40px}
.login-card{background:#fff;border-radius:14px;padding:30px 32px;box-shadow:0 20px 60px rgba(0,0,0,.35)}
.login-card h1{margin:0;font-size:24px;font-weight:600}
.sub{color:var(--muted);margin:4px 0 18px}
.err{background:#fde2e2;color:#b42318;border-radius:8px;padding:8px 12px;margin-bottom:12px;font-size:14px}
.who{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:16px}
.who-item{display:flex;gap:10px;align-items:center;border:1px solid var(--line);border-radius:10px;padding:8px 10px;cursor:pointer;transition:border-color .1s, background .1s}
.who-item:hover{background:var(--hover)}
.who-item input{position:absolute;opacity:0;pointer-events:none}
.who-item:has(input:checked){border-color:var(--accent);background:#effbf9;box-shadow:0 0 0 1px var(--accent)}
.who-text{min-width:0}
.who-text strong{display:block;font-size:14px;white-space:nowrap}
.who-text small{display:block;color:var(--muted);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.login-card .field{margin-bottom:12px}
.login-card button.primary{width:100%;padding:11px;font-size:15px;margin-top:4px}
.foot{text-align:center;color:#9fa4c4;font-size:13px;margin-top:20px}
@media (max-width:900px){.app{grid-template-columns:200px 1fr}.main.with-thread{grid-template-columns:1fr}.main.with-thread .channel{display:none}.topbar-left,.topbar-right{width:auto}}
.msg.active-thread{background:#eefaf7;box-shadow:inset 3px 0 0 var(--accent)}