:root{
  --bg:#0e1116; --pane:#151a22; --pane2:#1b212b; --line:#252d3a;
  --ink:#e6ebf2; --dim:#8b97a8; --faint:#5d6879;
  --accent:#4f8cff; --accent2:#2f6ee0; --green:#2fbf71; --warn:#e0a13a;
  --radius:12px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font:15px/1.5 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  display:flex; flex-direction:column;
}
h2{font-size:15px;margin:0 0 12px;letter-spacing:.01em}

.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:12px 20px;border-bottom:1px solid var(--line);background:var(--pane);
  flex:0 0 auto;
}
.brand{display:flex;align-items:baseline;gap:12px}
.logo{font-size:20px;font-weight:700;letter-spacing:-.02em;color:var(--accent)}
.tag{color:var(--dim);font-size:13px}
.mode{display:flex;align-items:center;gap:8px;color:var(--warn);font-size:12.5px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--warn);
  box-shadow:0 0 0 3px rgba(224,161,58,.18)}

.layout{
  flex:1 1 auto; min-height:0;
  display:grid; grid-template-columns:260px minmax(0,1fr) 340px; gap:1px;
  background:var(--line);
}
.pane{background:var(--bg);padding:18px;overflow-y:auto;min-height:0}
.groups{background:var(--pane)}
.phones{background:var(--pane)}

/* ---- groups ---- */
.grouplist{list-style:none;margin:0 0 16px;padding:0}
.grouplist li a{
  display:flex;flex-direction:column;gap:2px;padding:9px 11px;border-radius:9px;
  text-decoration:none;color:var(--ink);border:1px solid transparent;
}
.grouplist li a:hover{background:var(--pane2)}
.grouplist li.active a{background:var(--pane2);border-color:var(--accent)}
.gname{font-weight:600;font-size:14px}
.gnum{font-size:11.5px;color:var(--faint);font-variant-numeric:tabular-nums}

form input,form button{font:inherit}
.newgroup{display:flex;flex-direction:column;gap:8px;margin-bottom:14px}
input{
  background:var(--bg);border:1px solid var(--line);color:var(--ink);
  padding:8px 10px;border-radius:8px;width:100%;
}
input:focus{outline:none;border-color:var(--accent)}
button{
  background:var(--accent);color:#fff;border:0;padding:8px 14px;border-radius:8px;
  cursor:pointer;font-weight:600;
}
button:hover{background:var(--accent2)}
button.link{background:none;color:var(--faint);padding:0 4px;font-size:16px}
button.link:hover{background:none;color:#ff6b6b}
.note{color:var(--faint);font-size:12px;line-height:1.5}

/* ---- thread ---- */
.thread{display:flex;flex-direction:column}
.threadhead{
  display:flex;align-items:flex-start;justify-content:space-between;
  padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:6px;flex:0 0 auto;
}
.groupnumber{color:var(--accent);font-size:13px;font-variant-numeric:tabular-nums}
.membercount{color:var(--faint);font-size:12px}
.messages{flex:1 1 auto;overflow-y:auto;padding:14px 2px;display:flex;
  flex-direction:column;gap:10px;min-height:0}
.msg{max-width:78%;padding:8px 12px;border-radius:14px;background:var(--pane2);
  align-self:flex-start}
.msg .who{font-size:11.5px;color:var(--accent);font-weight:600;margin-bottom:2px}
.msg .body{white-space:pre-wrap;word-break:break-word}
.msg .meta{font-size:10.5px;color:var(--faint);margin-top:3px}
.msg.system{align-self:center;background:transparent;border:1px dashed var(--line);
  color:var(--dim);font-size:12.5px;max-width:90%;text-align:center}
.msg.web{align-self:flex-end;background:var(--accent2)}
.msg.web .who{color:#cfe0ff}
.composer{display:flex;gap:8px;padding-top:10px;border-top:1px solid var(--line);flex:0 0 auto}
.composer input{flex:1}

.memberbox{margin-top:12px;border-top:1px solid var(--line);padding-top:10px;flex:0 0 auto}
summary{cursor:pointer;color:var(--dim);font-size:13px;margin-bottom:8px}
.members{list-style:none;margin:0 0 10px;padding:0;display:flex;
  flex-direction:column;gap:5px}
.members li{display:flex;align-items:center;gap:10px;font-size:13px}
.mname{flex:0 0 auto;font-weight:600}
.out{color:var(--warn);font-style:normal;font-size:11px}
.mphone{flex:1;color:var(--faint);font-variant-numeric:tabular-nums;font-size:12px}
.members form{margin:0}
.addmember{display:flex;gap:6px;flex-wrap:wrap}
.addmember input{flex:1;min-width:110px;width:auto}

/* ---- handsets ---- */
.handsets{display:flex;flex-direction:column;gap:14px;margin-top:12px}
.phone{border:1px solid var(--line);border-radius:18px;background:var(--bg);
  overflow:hidden;display:flex;flex-direction:column}
.phone.out{opacity:.55}
.phonehead{padding:9px 12px;background:var(--pane2);border-bottom:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;gap:8px}
.phonename{font-weight:600;font-size:13px}
.phonenum{font-size:11px;color:var(--faint);font-variant-numeric:tabular-nums}
.inbox{padding:10px;display:flex;flex-direction:column;gap:6px;
  max-height:190px;overflow-y:auto;min-height:44px}
.sms{background:var(--pane2);border-radius:12px;padding:6px 10px;font-size:12.5px;
  align-self:flex-start;max-width:88%;word-break:break-word}
.sms.failed{border:1px solid #ff6b6b}
.sms.sysmsg{background:transparent;border:1px dashed var(--line);color:var(--dim);
  font-size:11.5px;align-self:center;max-width:96%}
.inbox .none{color:var(--faint);font-size:11.5px;font-style:italic}
.reply{display:flex;gap:6px;padding:8px;border-top:1px solid var(--line)}
.reply input{font-size:12.5px;padding:6px 9px}
.reply button{padding:6px 10px;font-size:12.5px}
.optbadge{font-size:10px;color:var(--warn);border:1px solid var(--warn);
  border-radius:99px;padding:1px 7px}

@media (max-width:1100px){
  .layout{grid-template-columns:1fr;overflow-y:auto}
  .pane{overflow:visible}
  .messages{max-height:50vh}
}

/* carrier + 10DLC campaign state */
select{background:var(--bg);border:1px solid var(--line);color:var(--ink);
  padding:8px 10px;border-radius:8px;width:100%;font:inherit}
.carrier{display:inline-block;margin-left:8px;font-size:10.5px;text-transform:uppercase;
  letter-spacing:.06em;color:var(--dim);border:1px solid var(--line);
  border-radius:99px;padding:1px 8px;vertical-align:middle}
.campaign{display:inline-block;margin-left:6px;font-size:10.5px;border-radius:99px;
  padding:1px 8px;vertical-align:middle;border:1px solid currentColor}
.campaign.completed{color:var(--green)}
.campaign.processing{color:var(--warn)}
.campaign.failed,.campaign.unknown{color:#ff6b6b}
.campaign.unlinked{color:var(--faint)}
button.refresh{font-size:13px;vertical-align:middle}