* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f1420;
  --card: #1a2132;
  --card-2: #212a40;
  --border: #2c374f;
  --text: #e8ecf4;
  --muted: #93a0b8;
  --accent: #4f7cff;
  --accent-hover: #6b90ff;
  --ok: #34d399;
  --err: #f87171;
  --radius: 12px;
}

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

.hidden { display: none !important; }

/* ---- login ---- */
.login-screen {
  position: fixed; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg);
  z-index: 100;
}
.login-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  width: min(380px, 90vw);
  display: flex; flex-direction: column; gap: 16px;
  text-align: center;
}
.login-card p { color: var(--muted); font-size: 14px; }

/* ---- header ---- */
header {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
  padding: 16px 24px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.header-title { display: flex; align-items: center; gap: 12px; }
h1 { font-size: 20px; }
.badge {
  font-size: 12px; padding: 4px 10px; border-radius: 20px;
  background: var(--card-2); color: var(--muted); border: 1px solid var(--border);
}
.badge.ok { color: var(--ok); border-color: var(--ok); }
.badge.err { color: var(--err); border-color: var(--err); }

nav { display: flex; gap: 8px; }
.tab-btn {
  background: transparent; color: var(--muted);
  border: 1px solid transparent; border-radius: 8px;
  padding: 8px 16px; cursor: pointer; font-size: 14px; font-family: inherit;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { background: var(--card-2); color: var(--text); border-color: var(--border); }
.tab-btn.logout { color: var(--err); }

main { max-width: 900px; margin: 0 auto; padding: 24px 16px 60px; }

/* ---- cards ---- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px;
}
h2 { font-size: 16px; }

/* ---- stats ---- */
.stats-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 20px; }
.stat {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px; text-align: center;
}
.stat .num { font-size: 26px; font-weight: 700; color: var(--accent-hover); }
.stat .lbl { font-size: 12px; color: var(--muted); margin-top: 4px; }

/* ---- forms ---- */
label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); margin-bottom: 12px; }
input, select, textarea {
  background: var(--card-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 12px; font-size: 14px; font-family: inherit;
  width: 100%;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }
textarea { resize: vertical; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.row { display: flex; gap: 8px; align-items: center; }
.space-between { justify-content: space-between; }
.checkbox-label { flex-direction: row; align-items: center; gap: 8px; margin: 0; }
.checkbox-label input { width: auto; }

button {
  font-family: inherit; cursor: pointer; font-size: 14px;
  border-radius: 8px; padding: 10px 18px; border: none;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-ghost {
  background: transparent; color: var(--muted);
  border: 1px solid var(--border); white-space: nowrap;
}
.btn-ghost:hover { color: var(--text); border-color: var(--muted); }
.btn-danger { background: transparent; color: var(--err); border: 1px solid var(--err); padding: 6px 12px; font-size: 13px; }

.error-msg { color: var(--err); font-size: 13px; min-height: 18px; margin-top: 8px; }
.hint { color: var(--muted); font-size: 13px; margin-top: 8px; }
.hint.ok { color: var(--ok); }
.hint.err { color: var(--err); }

/* ---- rule cards ---- */
.rule-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 20px; margin-bottom: 12px;
}
.rule-card.inactive { opacity: 0.5; }
.rule-top { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.rule-name { font-weight: 600; font-size: 15px; }
.rule-meta { font-size: 13px; color: var(--muted); margin-top: 8px; line-height: 1.7; }
.rule-meta b { color: var(--text); font-weight: 500; }
.rule-actions { display: flex; gap: 8px; }
.pill {
  display: inline-block; background: var(--card-2); border: 1px solid var(--border);
  padding: 2px 10px; border-radius: 20px; font-size: 12px; margin-inline-start: 6px;
}

/* ---- table ---- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: right; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 500; white-space: nowrap; }
td.ok { color: var(--ok); }
td.err { color: var(--err); }

/* ---- settings kv ---- */
.kv { display: flex; gap: 12px; align-items: center; margin-bottom: 8px; flex-wrap: wrap; }
.kv span { color: var(--muted); font-size: 13px; min-width: 140px; }
.kv code {
  background: var(--card-2); border: 1px solid var(--border); border-radius: 6px;
  padding: 6px 10px; font-size: 13px; user-select: all; word-break: break-all;
}

/* ---- modal ---- */
.modal {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6);
  display: flex; align-items: center; justify-content: center; z-index: 50;
}
.modal-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; width: min(600px, 92vw); max-height: 80vh; overflow-y: auto;
}
.post-item {
  padding: 12px; border: 1px solid var(--border); border-radius: 8px;
  margin-bottom: 8px; cursor: pointer; font-size: 13px;
}
.post-item:hover { border-color: var(--accent); }
.post-item .date { color: var(--muted); font-size: 12px; }

@media (max-width: 600px) {
  .grid-2 { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr 1fr 1fr; }
  header { padding: 12px; }
  nav { width: 100%; overflow-x: auto; }
}