:root {
  --bg: #f4f6f8; --panel: #ffffff; --text: #17212b; --muted: #637381; --border: #e3e8ee;
  --brand: #128c7e; --brand-2: #0f766b; --brand-soft: #e6f4f1; --accent: #25d366;
  --danger: #d64545; --danger-soft: #fdecec; --warn: #b7791f; --warn-soft: #fdf3e1;
  --info: #2b6cb0; --info-soft: #e8f1fb; --ok-soft: #e7f6ec; --ok: #1f8a4c;
  --shadow: 0 1px 2px rgba(16,24,40,.05), 0 1px 3px rgba(16,24,40,.06);
  --radius: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1418; --panel: #172026; --text: #e6edf3; --muted: #94a3b0; --border: #26323b;
    --brand: #22a594; --brand-2: #2dbba8; --brand-soft: #143a35; --danger-soft: #3a1d1f; --warn-soft: #3a2f17;
    --info-soft: #182c40; --ok-soft: #173325; --shadow: none; color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { font: 14px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 22px; margin: 0; }
h2 { font-size: 16px; margin: 0 0 12px; }
h3 { font-size: 14px; margin: 0 0 8px; }
p { margin: 0 0 10px; }
code { background: var(--bg); padding: 1px 6px; border-radius: 4px; font-size: 12.5px; word-break: break-all; }
.loading { padding: 40px; color: var(--muted); }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.hidden { display: none !important; }

/* Layout */
.layout { display: grid; grid-template-columns: 232px minmax(0, 1fr); min-height: 100vh; }
.sidebar { background: var(--panel); border-right: 1px solid var(--border); padding: 18px 12px; display: flex; flex-direction: column; gap: 4px; position: sticky; top: 0; height: 100vh; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 16px; padding: 4px 10px 18px; }
.logo img { width: 28px; height: 28px; }
.nav a { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 8px; color: var(--text); font-weight: 500; }
.nav a:hover { background: var(--bg); text-decoration: none; }
.nav a.active { background: var(--brand-soft); color: var(--brand); }
.nav .ico { width: 18px; text-align: center; opacity: .8; }
.sidebar .spacer { flex: 1; }
.userbox { border-top: 1px solid var(--border); padding: 12px 10px 0; display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.main { padding: 26px 32px 60px; max-width: 1280px; width: 100%; }
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.page-head .sub { color: var(--muted); margin-top: 2px; }
.topbar { display: none; }

/* Cards & grid */
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; }
.card + .card { margin-top: 16px; }
.grid { display: grid; gap: 16px; align-items: start; }
.grid > .card + .card, .grid > div > .card:first-child { margin-top: 0; }
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin-bottom: 16px; }
.stat { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); }
.stat .label { color: var(--muted); font-size: 12.5px; }
.stat .value { font-size: 24px; font-weight: 700; margin-top: 2px; }
.stat .hint { font-size: 12px; color: var(--muted); }

/* Buttons & forms */
.btn { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--border); background: var(--panel); color: var(--text); padding: 8px 14px; border-radius: 8px; font: inherit; font-weight: 500; cursor: pointer; white-space: nowrap; }
.btn:hover { background: var(--bg); text-decoration: none; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn.primary:hover { background: var(--brand-2); }
.btn.danger { color: var(--danger); }
.btn.danger.solid { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn.sm { padding: 5px 10px; font-size: 13px; }
.btn.link { border: none; background: none; color: var(--brand); padding: 4px 6px; }
.btns { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
label { display: block; font-weight: 500; margin-bottom: 4px; }
.field { margin-bottom: 14px; }
.field .help { color: var(--muted); font-size: 12.5px; margin-top: 4px; }
input[type=text], input[type=password], input[type=number], input[type=search], input[type=datetime-local], input[type=tel], select, textarea {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--panel); color: var(--text); font: inherit;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--brand-soft); border-color: var(--brand); }
textarea { min-height: 140px; resize: vertical; }
.check { display: flex; gap: 8px; align-items: flex-start; font-weight: 400; }
.check input { margin-top: 3px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 12px; }
.toolbar input[type=search] { max-width: 280px; }
.toolbar select { width: auto; }

/* Tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--panel); }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); background: var(--bg); font-weight: 600; }
tr:last-child td { border-bottom: none; }
tbody tr:hover { background: color-mix(in srgb, var(--bg) 60%, transparent); }
td.actions { text-align: right; white-space: nowrap; }
.empty { padding: 36px; text-align: center; color: var(--muted); }
.pager { display: flex; justify-content: space-between; align-items: center; margin-top: 10px; color: var(--muted); }

/* Badges & progress */
.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; background: var(--bg); color: var(--muted); white-space: nowrap; }
.badge.green, .badge.running, .badge.connected, .badge.sent, .badge.delivered, .badge.read, .badge.completed { background: var(--ok-soft); color: var(--ok); }
.badge.blue, .badge.scheduled, .badge.sending { background: var(--info-soft); color: var(--info); }
.badge.yellow, .badge.paused, .badge.pending { background: var(--warn-soft); color: var(--warn); }
.badge.red, .badge.failed, .badge.cancelled, .badge.error { background: var(--danger-soft); color: var(--danger); }
.tag { display: inline-block; background: var(--brand-soft); color: var(--brand); border-radius: 6px; padding: 0 7px; font-size: 12px; margin: 1px 3px 1px 0; }
.progress { height: 8px; background: var(--bg); border-radius: 99px; overflow: hidden; min-width: 90px; display: flex; }
.progress > span { display: block; height: 100%; }
.progress .ok { background: var(--accent); }
.progress .bad { background: var(--danger); }
.progress .skip { background: #a0aec0; }
.alert { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; border: 1px solid transparent; }
.alert.warn { background: var(--warn-soft); color: var(--warn); }
.alert.error { background: var(--danger-soft); color: var(--danger); }
.alert.info { background: var(--info-soft); color: var(--info); }
.alert.ok { background: var(--ok-soft); color: var(--ok); }

/* Chart */
.chart { display: flex; align-items: flex-end; gap: 6px; height: 150px; padding-top: 10px; }
.chart .bar { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; height: 100%; gap: 4px; }
.chart .bar span { width: 100%; max-width: 28px; background: var(--brand); border-radius: 4px 4px 0 0; min-height: 2px; }
.chart .bar small { font-size: 10.5px; color: var(--muted); }

/* Selection bar */
.selbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; background: var(--brand-soft); border-radius: 8px; padding: 8px 12px; margin-bottom: 10px; }
.selbar strong { color: var(--brand); }

/* Modal */
.modal-back { position: fixed; inset: 0; background: rgba(10,15,20,.5); display: flex; align-items: flex-start; justify-content: center; padding: 6vh 16px; z-index: 50; overflow-y: auto; }
.modal { background: var(--panel); border-radius: 12px; width: 100%; max-width: 560px; box-shadow: 0 20px 50px rgba(0,0,0,.25); }
.modal.wide { max-width: 820px; }
.modal header { padding: 16px 20px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.modal header h2 { margin: 0; }
.modal .body { padding: 18px 20px; }
.modal footer { padding: 14px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 8px; }
.x { border: none; background: none; font-size: 22px; line-height: 1; cursor: pointer; color: var(--muted); }

/* Toasts */
#toasts { position: fixed; right: 18px; bottom: 18px; display: flex; flex-direction: column; gap: 8px; z-index: 60; }
.toast { background: #1f2933; color: #fff; padding: 10px 16px; border-radius: 8px; box-shadow: 0 6px 20px rgba(0,0,0,.2); max-width: 380px; }
.toast.error { background: var(--danger); }
.toast.ok { background: var(--ok); }

/* Auth */
.auth { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.auth .card { width: 100%; max-width: 380px; }
.auth .logo { justify-content: center; padding-bottom: 8px; }

/* Message preview bubble */
.bubble { background: #dcf8c6; color: #111; border-radius: 10px 10px 2px 10px; padding: 8px 12px; white-space: pre-wrap; word-wrap: break-word; max-width: 420px; margin-left: auto; box-shadow: 0 1px 1px rgba(0,0,0,.1); }
.phone-frame { background: #e5ddd5; border-radius: 10px; padding: 14px; }
@media (prefers-color-scheme: dark) { .phone-frame { background: #0b141a; } .bubble { background: #005c4b; color: #e9edef; } }
.qr { display: flex; justify-content: center; padding: 12px; }
.qr img { width: 260px; height: 260px; background: #fff; padding: 8px; border-radius: 8px; }
.kv { display: grid; grid-template-columns: 160px 1fr; gap: 8px 12px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; margin: 6px 0; }

@media (max-width: 900px) {
  .layout { grid-template-columns: minmax(0, 1fr); }
  .toolbar input[type=search], .toolbar select { max-width: none; flex: 1 1 140px; }
  .page-head .btns .btn { flex: 1 1 auto; justify-content: center; }
  .sidebar { position: fixed; left: 0; top: 0; bottom: 0; width: 250px; transform: translateX(-100%); transition: transform .2s; z-index: 40; }
  .sidebar.open { transform: none; box-shadow: 0 0 40px rgba(0,0,0,.3); }
  .topbar { display: flex; align-items: center; gap: 10px; padding: 10px 16px; background: var(--panel); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 30; }
  .main { padding: 18px 16px 60px; }
  .grid.cols-2, .grid.cols-3, .row { grid-template-columns: 1fr; }
  .kv { grid-template-columns: 1fr; }
}
.section { margin-top: 16px; }
.selbar .spacer { flex: 1; }

.check select { width: auto; margin-left: 6px; }