:root {
    --bg: #0f1115;
    --panel: #171a21;
    --border: #2a2e38;
    --text: #e6e8ec;
    --muted: #9aa1ac;
    --accent: #5b8def;
    --danger: #e5534b;
    --success: #3fb950;
    --warn: #d29922;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
header {
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
header a { color: var(--text); text-decoration: none; margin-right: 16px; font-weight: 600; }
header nav a { color: var(--muted); font-weight: 400; }
main { max-width: 960px; margin: 24px auto; padding: 0 16px; }
.card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 16px;
}
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); font-size: 14px; }
th { color: var(--muted); font-weight: 500; }
input[type=text], input[type=password], input[type=number], select {
    width: 100%; padding: 8px 10px; border-radius: 6px; border: 1px solid var(--border);
    background: #10131a; color: var(--text); margin-top: 4px;
}
label { display: block; margin-bottom: 12px; font-size: 14px; color: var(--muted); }
button, .btn {
    background: var(--accent); color: white; border: none; padding: 9px 16px;
    border-radius: 6px; cursor: pointer; font-size: 14px; text-decoration: none; display: inline-block;
}
button.secondary { background: transparent; border: 1px solid var(--border); color: var(--text); }
button.danger, .btn.danger { background: var(--danger); }
.badge { padding: 2px 8px; border-radius: 12px; font-size: 12px; }
.badge.active { background: #1f2a1f; color: var(--success); }
.badge.unsubscribed { background: #1a2733; color: var(--accent); }
.badge.failed { background: #331a1a; color: var(--danger); }
.badge.manual_required { background: #332b1a; color: var(--warn); }
.badge.unsubscribing { background: #2a2a1a; color: var(--warn); }
.muted { color: var(--muted); font-size: 13px; }
.flash { padding: 10px 14px; border-radius: 6px; margin-bottom: 16px; }
.flash.error { background: #331a1a; color: #ff9d97; }
.flash.success { background: #1a2e1a; color: #a6f0a6; }
.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }