:root {
  --bg: #0b141a;
  --card: #202c33;
  --input-bg: #111b21;
  --border: #2a3942;
  --text: #e9edef;
  --muted: #8696a0;
  --accent: #00a884;
  --accent-hover: #06cf9c;
  --warn: #ffd479;
  --danger: #f15c6d;
  --ok: #25d366;
}

* { box-sizing: border-box; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  min-height: 100vh;
}

a { color: var(--accent); }

.container { max-width: 1000px; margin: 0 auto; padding: 24px; }

.card {
  background: var(--card);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 20px;
}

h1, h2, h3 { color: #fff; margin-top: 0; }

.muted { color: var(--muted); font-size: 13px; }

input, button, select {
  font-family: inherit;
  font-size: 14px;
}

input {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text);
  margin-bottom: 12px;
}

button {
  padding: 10px 18px;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-weight: 600;
}
button:hover { background: var(--accent-hover); }
button:disabled { background: #3a4a52; color: var(--muted); cursor: not-allowed; }
button.secondary { background: transparent; border: 1px solid var(--border); color: var(--text); }
button.secondary:hover { background: var(--input-bg); }
button.danger { background: transparent; border: 1px solid var(--danger); color: var(--danger); }

.error { color: var(--danger); font-size: 13px; margin: -4px 0 12px; min-height: 1em; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.connected { background: rgba(37,211,102,0.15); color: var(--ok); }
.badge.qr, .badge.connecting { background: rgba(255,212,121,0.15); color: var(--warn); }
.badge.disconnected { background: rgba(241,92,109,0.15); color: var(--danger); }

table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); font-size: 13px; }
th { color: var(--muted); font-weight: 600; }

.grid { display: grid; gap: 20px; }
@media (min-width: 800px) {
  .grid.cols-2 { grid-template-columns: 1.1fr 0.9fr; align-items: start; }
}

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px; border-bottom: 1px solid var(--border);
}
.topbar .brand { font-weight: 700; font-size: 16px; }
.topbar nav a { color: var(--muted); text-decoration: none; margin-left: 20px; font-size: 14px; }
.topbar nav a:hover { color: var(--text); }

.pkg-list { display: grid; gap: 10px; }
.pkg-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 14px; border: 1px solid var(--border); border-radius: 8px;
}
.pkg-item .pkg-info { font-size: 13px; }
.pkg-item .pkg-price { font-weight: 700; color: #fff; }

.banner {
  padding: 12px 16px; border-radius: 8px; font-size: 13px; margin-bottom: 16px;
}
.banner.warn { background: rgba(255,212,121,0.12); border: 1px solid rgba(255,212,121,0.3); color: var(--warn); }
.banner.ok { background: rgba(37,211,102,0.1); border: 1px solid rgba(37,211,102,0.25); color: var(--ok); }