:root {
  --bg: #0f1216;
  --panel: #171b21;
  --panel-2: #1e242c;
  --border: #2a323d;
  --text: #e6e9ee;
  --muted: #8b95a3;
  --primary: #3b82f6;
  --primary-hover: #2f6fd6;
  --green: #22c55e;
  --red: #ef4444;
  --gray: #6b7280;
  --radius: 12px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.error { color: var(--red); margin-top: 8px; min-height: 18px; font-size: 13px; }

/* Login */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.login-card { width: 340px; }
.login-card h1 { margin: 0 0 4px; }
.login-card label { display: block; margin: 14px 0 0; }

/* Layout */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 22px; border-bottom: 1px solid var(--border); background: var(--panel);
  position: sticky; top: 0; z-index: 5;
}
.brand { font-weight: 700; font-size: 18px; }
.top-actions { display: flex; align-items: center; gap: 14px; }

.grid {
  display: grid; gap: 18px; padding: 22px;
  grid-template-columns: 1fr 1fr;
  max-width: 1200px; margin: 0 auto;
}
.col { min-width: 0; }
.wide { grid-column: 1 / -1; }
@media (max-width: 860px) { .grid { grid-template-columns: 1fr; } }

/* Card */
.card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px;
}
.card-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.card-head h2 { margin: 0; font-size: 16px; }

/* Inputs */
label { font-size: 13px; color: var(--muted); }
input, textarea, select {
  width: 100%; margin-top: 6px; padding: 10px 12px;
  background: var(--panel-2); border: 1px solid var(--border);
  color: var(--text); border-radius: 8px; font-size: 14px; font-family: inherit;
}
textarea { resize: vertical; }
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--primary); }

/* Buttons */
.btn {
  cursor: pointer; border: 1px solid var(--border); background: var(--panel-2);
  color: var(--text); padding: 10px 16px; border-radius: 8px; font-size: 14px;
}
.btn:hover { border-color: var(--primary); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; width: 100%; margin-top: 16px; }
.btn.primary:hover { background: var(--primary-hover); }
.btn.ghost { background: transparent; }
.btn.tiny { padding: 4px 10px; font-size: 12px; }

/* Dots */
.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 5px; vertical-align: middle; }
.dot.online { background: var(--green); box-shadow: 0 0 6px var(--green); }
.dot.warning { background: var(--red); }
.dot.offline { background: var(--gray); }
.legend { font-size: 12px; color: var(--muted); display: flex; gap: 12px; align-items: center; }

/* Lists */
.list { display: flex; flex-direction: column; gap: 10px; }
.row {
  background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 10px; padding: 12px 14px;
}
.row-main { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.row .num { font-weight: 600; }
.row .sub { color: var(--muted); font-size: 12px; margin-top: 3px; }
.pill { font-size: 11px; padding: 3px 9px; border-radius: 999px; border: 1px solid var(--border); }
.pill.pending { color: #fbbf24; border-color: #6b5a2a; }
.pill.claimed { color: #60a5fa; border-color: #2f4d7a; }
.pill.done { color: var(--green); border-color: #2a5a3a; }

/* Task form */
.task-form label { display: block; margin-top: 12px; }
.recip-head { display: flex; justify-content: space-between; align-items: center; margin-top: 14px; font-size: 13px; color: var(--muted); }
.recip-tools { display: flex; gap: 6px; }
.recip-list {
  margin-top: 8px; max-height: 200px; overflow-y: auto;
  border: 1px solid var(--border); border-radius: 8px; padding: 6px;
  display: flex; flex-direction: column; gap: 4px;
}
.recip-item { display: flex; align-items: center; gap: 8px; padding: 6px 8px; border-radius: 6px; }
.recip-item:hover { background: var(--panel); }
.recip-item input { width: auto; margin: 0; }
.recip-item .meta { color: var(--muted); font-size: 12px; }

/* Progress bar */
.bar { height: 6px; background: var(--panel); border-radius: 999px; overflow: hidden; margin-top: 8px; }
.bar > span { display: block; height: 100%; background: var(--primary); }

/* Modal */
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.6); display: grid; place-items: center; z-index: 20; padding: 20px; }
.modal-card { width: 560px; max-width: 100%; max-height: 85vh; overflow-y: auto; }
.rtable { width: 100%; border-collapse: collapse; margin-top: 10px; font-size: 13px; }
.rtable th, .rtable td { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--border); }
.rtable td.sent { color: var(--green); }
.rtable td.failed { color: var(--red); }
.rtable td.pending { color: var(--muted); }