:root {
  --bg: #0b0f14;
  --panel: #121821;
  --panel-2: #17202b;
  --border: #232d3a;
  --text: #e6edf3;
  --muted: #8b96a3;
  --green: #2ea043;
  --green-glow: #2ea04355;
  --red: #f85149;
  --red-glow: #f8514966;
  --amber: #d29922;
  --accent: #4098ff;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* ---- Topbar ---- */
.topbar {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 10px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.brand { font-weight: 700; font-size: 18px; white-space: nowrap; }
.brand span { color: var(--accent); }
.brand.center { text-align: center; font-size: 24px; margin-bottom: 4px; }
.tabs { display: flex; gap: 6px; flex-wrap: wrap; flex: 1; }
.tabs a, .topbar-right a {
  color: var(--muted);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 14px;
}
.tabs a:hover, .topbar-right a:hover { background: var(--panel-2); color: var(--text); }
.tabs a.active { background: var(--accent); color: #fff; }
.topbar-right { display: flex; align-items: center; gap: 4px; }
.topbar-right a.active { color: var(--accent); }
.topbar-right .logout { color: var(--red); }
#muteBtn {
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  border-radius: 6px; padding: 6px 10px; cursor: pointer; font-size: 14px;
}

/* ---- Alarm banner ---- */
.alarm-banner {
  background: var(--red); color: #fff; text-align: center; padding: 8px;
  font-weight: 600; animation: pulse-bg 1.2s infinite;
}
.alarm-banner.hidden { display: none; }
@keyframes pulse-bg { 0%,100% { opacity: 1; } 50% { opacity: 0.75; } }

/* ---- Content ---- */
.content { padding: 24px; max-width: 1400px; margin: 0 auto; }
.page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; flex-wrap: wrap; gap: 10px; }
.page-header h1 { margin: 0; font-size: 22px; }

.btn {
  background: var(--accent); color: #fff; border: none; padding: 9px 16px;
  border-radius: 6px; text-decoration: none; font-size: 14px; cursor: pointer; display: inline-block;
}
.btn.secondary { background: var(--panel-2); border: 1px solid var(--border); color: var(--text); }
.btn.small { padding: 5px 10px; font-size: 12px; }

/* ---- Summary bar ---- */
.summary-bar { display: flex; gap: 10px; margin-bottom: 20px; }
.pill { padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; background: var(--panel-2); border: 1px solid var(--border); }
.pill.up span { color: var(--green); }
.pill.down span { color: var(--red); }
.pill.unknown span { color: var(--muted); }

/* ---- Device grid ---- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; }
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  padding: 14px; transition: box-shadow .3s, border-color .3s;
}
.card.status-up { border-color: var(--green); }
.card.status-down { border-color: var(--red); box-shadow: 0 0 14px var(--red-glow); animation: blink 1.1s infinite; }
.card.status-unknown { border-color: var(--border); opacity: 0.7; }
@keyframes blink { 0%,100% { box-shadow: 0 0 6px var(--red-glow); } 50% { box-shadow: 0 0 20px var(--red-glow); } }

.card-top { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--muted); flex-shrink: 0; }
.status-up .dot { background: var(--green); }
.status-down .dot { background: var(--red); }
.dot-up { background: var(--green); } .dot-down { background: var(--red); } .dot-unknown { background: var(--muted); }
.dot { display: inline-block; }
.dev-name { flex: 1; font-size: 15px; }
.proto-badge { font-size: 10px; text-transform: uppercase; color: var(--muted); background: var(--panel-2); padding: 2px 6px; border-radius: 4px; }
.card-body { font-size: 12.5px; color: var(--muted); line-height: 1.7; }
.card-body .ip { color: var(--text); font-family: monospace; font-size: 13px; }
.card-actions { margin-top: 10px; display: flex; gap: 12px; }
.card-actions a { color: var(--accent); font-size: 12.5px; text-decoration: none; }

.empty-state { color: var(--muted); }

/* ---- Tables ---- */
.data-table { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.data-table th, .data-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); font-size: 13.5px; }
.data-table th { color: var(--muted); font-weight: 600; background: var(--panel-2); }
.row-actions a { color: var(--accent); margin-right: 10px; text-decoration: none; font-size: 13px; }
.link-danger { background: none; border: none; color: var(--red); cursor: pointer; font-size: 13px; padding: 0; }

/* ---- Forms ---- */
.form-card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 20px; }
.form-card label { display: block; font-size: 12.5px; color: var(--muted); margin: 10px 0 4px; }
.form-card input, .form-card select, .form-card textarea {
  width: 100%; padding: 9px 10px; background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 6px; color: var(--text); font-size: 14px;
}
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 4px 18px; }
.full-width { grid-column: 1 / -1; }
.checkbox-row { display: flex; align-items: center; margin-top: 14px; }
.checkbox-row label { display: flex; align-items: center; gap: 8px; color: var(--text); font-size: 14px; margin: 0; }
.checkbox-row input { width: auto; }
.snmp-fields { display: contents; }
.form-actions { margin-top: 18px; display: flex; gap: 10px; }
.hint { color: var(--muted); font-weight: 400; }
.reveal-row { margin-top: 14px; display: flex; align-items: center; gap: 10px; }
#revealedPw { font-family: monospace; color: var(--amber); }
.inline-form { display: flex; gap: 10px; margin-bottom: 18px; align-items: center; }
.inline-form input { width: auto; flex: 1; }

/* ---- Flash messages ---- */
.flashes { margin-bottom: 16px; }
.flash { padding: 10px 14px; border-radius: 6px; margin-bottom: 8px; font-size: 14px; }
.flash.success { background: #14351f; color: #7ee2a8; border: 1px solid var(--green); }
.flash.error { background: #3a1616; color: #ffb4ac; border: 1px solid var(--red); }

/* ---- Login page ---- */
.login-body { display: flex; align-items: center; justify-content: center; height: 100vh; }
.login-box { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 32px; width: 320px; }
.subtitle { color: var(--muted); text-align: center; margin-top: 0; font-size: 13px; }
.login-box label { display: block; font-size: 12.5px; color: var(--muted); margin: 12px 0 4px; }
.login-box input {
  width: 100%; padding: 10px; background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 6px; color: var(--text); font-size: 14px;
}
.login-box button {
  width: 100%; margin-top: 18px; padding: 10px; background: var(--accent); color: #fff;
  border: none; border-radius: 6px; font-size: 14px; cursor: pointer;
}