:root {
  --bg: #0f1117;
  --panel: #171a24;
  --panel-2: #1e2230;
  --border: #2a2f3f;
  --text: #e7e9ee;
  --muted: #9aa0ae;
  --accent: #6c5ce7;
  --accent-2: #00d2a0;
  --danger: #ff6b6b;
  --warning: #ffb84d;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--text);
  margin: 0;
  padding: 0;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

header.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

header.topbar h1 {
  font-size: 18px;
  margin: 0;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 18px;
  font-size: 14px;
}
nav a.active, nav a:hover { color: var(--text); }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}

h2 { font-size: 16px; margin: 0 0 14px; color: var(--text); }
p.muted, span.muted { color: var(--muted); font-size: 13px; }

input, textarea, select {
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
  font-size: 14px;
  margin-bottom: 12px;
}
textarea { min-height: 120px; font-family: monospace; resize: vertical; }
label { font-size: 13px; color: var(--muted); display: block; margin-bottom: 4px; }

button {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 14px;
  cursor: pointer;
  font-weight: 500;
}
button:hover { opacity: 0.9; }
button.secondary { background: var(--panel-2); border: 1px solid var(--border); color: var(--text); }
button.danger { background: var(--danger); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
}
.badge.active { background: rgba(0,210,160,0.15); color: var(--accent-2); }
.badge.invalid, .badge.failed { background: rgba(255,107,107,0.15); color: var(--danger); }
.badge.duplicate, .badge.unsubscribed { background: rgba(255,184,77,0.15); color: var(--warning); }
.badge.sent, .badge.completed { background: rgba(0,210,160,0.15); color: var(--accent-2); }
.badge.sending, .badge.pending { background: rgba(108,92,231,0.15); color: var(--accent); }
.badge.scheduled { background: rgba(255,184,77,0.15); color: var(--warning); }
.badge.draft { background: var(--panel-2); color: var(--muted); }

.row { display: flex; gap: 10px; }
.row > * { flex: 1; }

.progress-bar {
  width: 100%;
  height: 10px;
  background: var(--panel-2);
  border-radius: 6px;
  overflow: hidden;
  margin: 10px 0;
}
.progress-bar > div {
  height: 100%;
  background: var(--accent-2);
  transition: width 0.3s;
}

.list-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}
.list-item {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  text-decoration: none;
  color: var(--text);
  display: block;
}
.list-item:hover { border-color: var(--accent); }
.list-item h3 { margin: 0 0 6px; font-size: 15px; }

.empty { color: var(--muted); font-size: 14px; padding: 20px 0; text-align: center; }
.toast {
  position: fixed; bottom: 20px; right: 20px;
  background: var(--panel-2); border: 1px solid var(--border);
  padding: 12px 16px; border-radius: 8px; font-size: 14px; max-width: 320px;
}
.toast.error { border-color: var(--danger); color: var(--danger); }