:root {
  --bg: #0c0e14;
  --panel: #151823;
  --panel-2: #1c2030;
  --border: #262b3d;
  --text: #e6e9f2;
  --muted: #8b93a7;
  --primary: #5b8cff;
  --primary-d: #3f6fe0;
  --green: #25d366;
  --green-d: #1aa34a;
  --red: #ff5d6c;
  --amber: #f5a623;
  --graphics: #c47bff;
  --webdev: #46c8ff;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(0,0,0,.35);
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: radial-gradient(1200px 600px at 80% -10%, #1a2030 0%, var(--bg) 55%);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, Roboto, sans-serif;
  font-size: 14px;
  min-height: 100vh;
}

/* ---------- top bar ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 14px 24px;
  background: rgba(18,21,32,.85); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 20;
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo { font-size: 26px; }
.brand h1 { font-size: 17px; margin: 0; letter-spacing: .2px; }
.sub { margin: 2px 0 0; color: var(--muted); font-size: 12px; }
.controls { display: flex; align-items: center; gap: 16px; }
.stat { display: flex; flex-direction: column; align-items: flex-start; gap: 3px; }
.stat-label { font-size: 10px; text-transform: uppercase; letter-spacing: .6px; color: var(--muted); }
.stat-val { font-weight: 600; font-variant-numeric: tabular-nums; }
.interval-edit { display: flex; align-items: center; gap: 6px; }
.interval-edit input { width: 56px; padding: 5px 8px; text-align: center; font-variant-numeric: tabular-nums; font-weight: 600; }

/* ---------- buttons ---------- */
.btn {
  border: 1px solid var(--border); background: var(--panel-2); color: var(--text);
  padding: 9px 16px; border-radius: 10px; cursor: pointer; font-weight: 600; font-size: 13px;
  transition: transform .06s ease, background .15s ease, border-color .15s ease;
}
.btn:hover { border-color: #3a4566; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-d); }
.btn-danger { background: var(--red); border-color: var(--red); color: #fff; }
.btn-ghost { background: transparent; }
.btn-green { background: var(--green); border-color: var(--green); color: #062b14; }
.btn-green:hover { background: var(--green-d); color:#fff; }
.btn-sm { padding: 6px 11px; font-size: 12px; }
.btn-del { line-height: 1; }
.btn-del:hover { border-color: var(--red); color: var(--red); }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.cell-actions { white-space: nowrap; }
.cell-actions .btn { margin-left: 4px; }

/* ---------- pills ---------- */
.pill { padding: 4px 11px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.pill-on { background: rgba(37,211,102,.16); color: var(--green); }
.pill-off { background: rgba(255,93,108,.14); color: var(--red); }
.pill-warn { background: rgba(245,166,35,.16); color: var(--amber); }
.pill-busy { background: rgba(91,140,255,.18); color: var(--primary); }

/* ---------- layout ---------- */
main { padding: 22px 24px 60px; max-width: 1320px; margin: 0 auto; display: flex; flex-direction: column; gap: 18px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; gap: 12px; }
.card-head h2 { font-size: 15px; margin: 0; }
.muted { color: var(--muted); font-weight: 400; font-size: 12px; }
.grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 18px; }
@media (max-width: 980px) { .grid { grid-template-columns: 1fr; } }

/* ---------- evolution creds ---------- */
.evo-creds { display: flex; gap: 14px; align-items: flex-end; flex-wrap: wrap; margin-bottom: 18px; }
.field { display: flex; flex-direction: column; gap: 5px; flex: 1; min-width: 220px; }
.field label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; }
input, textarea, select {
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  border-radius: 9px; padding: 9px 11px; font-size: 13px; font-family: inherit; width: 100%;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--primary); }
textarea { resize: vertical; min-height: 84px; line-height: 1.45; }

/* ---------- device pool ---------- */
.instances { display: flex; flex-direction: column; gap: 14px; }
.dev-pool-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.dev-pool-head h3 { font-size: 14px; margin: 0; font-weight: 700; }
.devices-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; align-items: start; }
@media (max-width: 760px) { .devices-list { grid-template-columns: 1fr; } }
.devices-list .empty { color: var(--muted); font-size: 12px; padding: 8px 0; grid-column: 1 / -1; }

.device {
  border: 1px solid var(--border); border-radius: 12px; padding: 16px;
  background: linear-gradient(180deg, var(--panel-2), rgba(28,32,48,.5));
  min-width: 0;
}
.device-label {
  width: auto; max-width: 160px; background: transparent; border: 1px solid transparent;
  color: var(--text); font-weight: 700; font-size: 15px; padding: 2px 6px; border-radius: 7px;
}
.device-label:hover { border-color: var(--border); }
.device-label:focus { border-color: var(--primary); background: var(--panel-2); }
.iname-row { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--muted); margin: 4px 0 2px; }
.iname-input { flex: 1; min-width: 0; padding: 5px 9px; font-size: 12px; }

.inst-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.inst-head-right { display: flex; align-items: center; gap: 10px; }
.wa-toggle { display: inline-flex; align-items: center; gap: 7px; background: none; border: none; padding: 0; cursor: pointer; font-weight: 700; font-size: 11px; text-transform: uppercase; letter-spacing: .5px; }
.wa-toggle-track { width: 38px; height: 21px; border-radius: 999px; background: var(--border); position: relative; transition: background .18s ease; flex-shrink: 0; }
.wa-toggle-thumb { position: absolute; top: 2px; left: 2px; width: 17px; height: 17px; border-radius: 50%; background: #fff; transition: transform .18s ease; box-shadow: 0 1px 3px rgba(0,0,0,.45); }
.wa-toggle.on .wa-toggle-track { background: var(--green); }
.wa-toggle.on .wa-toggle-thumb { transform: translateX(17px); }
.wa-toggle.on .wa-toggle-label { color: var(--green); }
.wa-toggle.off .wa-toggle-label { color: var(--muted); }
.inst-title { display: flex; align-items: center; gap: 9px; font-weight: 700; font-size: 15px; min-width: 0; }
.inst-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--muted); flex-shrink: 0; }
.inst-actions { display: flex; gap: 8px; margin: 12px 0; flex-wrap: wrap; }
label.msg-label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; display: block; margin: 12px 0 6px; }
label.msg-label .muted { text-transform: none; letter-spacing: 0; }

/* per-message editors */
.msg-list { display: flex; flex-direction: column; gap: 10px; }
.msg-item { position: relative; }
.msg-num { display: block; font-size: 10px; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); margin-bottom: 4px; }
textarea[data-msgitem] { min-height: 80px; padding-right: 36px; }
.msg-remove {
  position: absolute; top: 20px; right: 8px; width: 24px; height: 24px; padding: 0;
  background: rgba(255,93,108,.14); color: var(--red); border: 1px solid transparent;
  border-radius: 7px; cursor: pointer; font-size: 13px; line-height: 1; font-weight: 700;
}
.msg-remove:hover { background: rgba(255,93,108,.3); transform: none; }

.tmpl-hint { font-size: 11px; color: var(--muted); margin-top: 6px; }
.tmpl-hint code { background: var(--panel); padding: 1px 5px; border-radius: 5px; color: var(--primary); }

/* which lead types a connection serves */
.serves-row { display: flex; align-items: center; gap: 10px; margin: 14px 0 4px; flex-wrap: wrap; }
.serves-label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; }
.type-checks { display: flex; gap: 8px; flex-wrap: wrap; }
.type-check { display: inline-flex; align-items: center; gap: 6px; padding: 5px 10px; border: 1px solid var(--border); border-radius: 999px; cursor: pointer; background: var(--panel); user-select: none; }
.type-check input { width: auto; margin: 0; accent-color: var(--primary); cursor: pointer; }
.type-check.on { border-color: var(--primary); background: rgba(91,140,255,.08); }
.msg-sections { display: flex; flex-direction: column; }
.msg-section[hidden] { display: none; }

/* ---------- latest lead ---------- */
.latest-body .empty { color: var(--muted); text-align: center; padding: 30px 0; }
.lead-name { font-size: 20px; font-weight: 700; margin: 0; }
.lead-meta { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin: 8px 0 14px; }
.lead-section { margin-top: 12px; }
.lead-section h4 { margin: 0 0 4px; font-size: 11px; text-transform: uppercase; letter-spacing: .6px; color: var(--muted); }
.lead-desc { background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px; padding: 11px; line-height: 1.5; max-height: 140px; overflow: auto; }
.lead-foot { display: flex; gap: 8px; margin-top: 16px; align-items: center; flex-wrap: wrap; }
.kv { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 18px; margin-top: 10px; }
.kv div span { display: block; }
.kv .k { font-size: 10px; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); }
.kv .v { font-weight: 600; }

/* type + status badges */
.badge { padding: 3px 9px; border-radius: 7px; font-size: 11px; font-weight: 700; }
.badge.graphics { background: rgba(196,123,255,.16); color: var(--graphics); }
.badge.webdev { background: rgba(70,200,255,.16); color: var(--webdev); }
.badge.unknown { background: rgba(139,147,167,.18); color: var(--muted); }
.wa-yes { color: var(--green); font-weight: 700; }
.wa-no { color: var(--muted); }
.wa-tag { font-size: 11px; padding: 2px 7px; border-radius: 6px; }
.wa-sent { background: rgba(37,211,102,.16); color: var(--green); }
.wa-failed { background: rgba(255,93,108,.16); color: var(--red); }
.wa-pending { background: rgba(245,166,35,.16); color: var(--amber); }

/* ---------- activity ---------- */
.livedot { color: var(--green); font-size: 12px; font-weight: 700; }
.activity { font-family: 'Cascadia Code', Consolas, monospace; font-size: 12px; max-height: 360px; overflow: auto; display: flex; flex-direction: column; gap: 2px; }
.log-line { display: flex; gap: 8px; padding: 3px 0; border-bottom: 1px solid rgba(38,43,61,.4); }
.log-time { color: var(--muted); flex-shrink: 0; }
.log-info { color: var(--text); }
.log-success { color: var(--green); }
.log-warn { color: var(--amber); }
.log-error { color: var(--red); }

/* ---------- table ---------- */
.filters { display: flex; gap: 6px; }
.chip { background: var(--panel-2); border: 1px solid var(--border); color: var(--muted); border-radius: 999px; padding: 5px 13px; font-size: 12px; cursor: pointer; font-weight: 600; }
.chip.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); padding: 8px 10px; border-bottom: 1px solid var(--border); position: sticky; top: 0; }
td { padding: 11px 10px; border-bottom: 1px solid rgba(38,43,61,.5); vertical-align: middle; }
tbody tr:hover { background: rgba(91,140,255,.05); }
.cell-name { font-weight: 600; }
.cell-sub { font-size: 11px; color: var(--muted); }
.row-new { animation: flash 1.6s ease; }
@keyframes flash { 0% { background: rgba(37,211,102,.22); } 100% { background: transparent; } }

/* expandable rows */
.lead-row { cursor: pointer; }
.lead-row.open { background: rgba(91,140,255,.07); }
.caret { display: inline-block; margin-right: 7px; color: var(--muted); font-size: 10px; transition: transform .15s ease; }
.lead-row.open .caret { transform: rotate(90deg); color: var(--primary); }
.lead-detail-row > td { padding: 0; background: var(--panel-2); border-bottom: 1px solid var(--border); }
.lead-detail-row:hover > td { background: var(--panel-2); }
.lead-detail-inner { padding: 16px 18px; border-left: 3px solid var(--primary); }

/* ---------- modal ---------- */
.modal { position: fixed; inset: 0; background: rgba(4,6,12,.7); display: flex; align-items: center; justify-content: center; z-index: 50; backdrop-filter: blur(3px); }
.modal[hidden] { display: none; }
.modal-box { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 26px; width: 360px; text-align: center; position: relative; box-shadow: var(--shadow); }
.modal-close { position: absolute; top: 12px; right: 14px; background: none; border: none; color: var(--muted); font-size: 18px; cursor: pointer; }
.qr-wrap { width: 256px; height: 256px; margin: 16px auto; background: #fff; border-radius: 12px; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.qr-wrap img { width: 100%; height: 100%; object-fit: contain; }
.qr-state { font-weight: 700; }
.pairing { font-family: monospace; letter-spacing: 2px; color: var(--primary); }
.spinner { width: 34px; height: 34px; border: 4px solid #ccc; border-top-color: var(--primary); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- toast ---------- */
.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: var(--panel-2); border: 1px solid var(--border); padding: 12px 20px; border-radius: 10px; box-shadow: var(--shadow); z-index: 60; font-weight: 600; }
.toast.ok { border-color: var(--green); }
.toast.err { border-color: var(--red); }