/* ---------- tokens ---------- */
:root {
  --bg: #0d1219;
  --panel: #141b25;
  --panel-2: #1a2330;
  --hover: #1e2938;
  --border: #223042;
  --border-strong: #2d3d52;
  --text: #e7edf4;
  --muted: #8b99ab;
  --faint: #5f6d80;
  --green: #2fd08a;
  --green-strong: #24bd7b;
  --green-dim: rgba(47, 208, 138, 0.13);
  --red: #ff5c6c;
  --red-dim: rgba(255, 92, 108, 0.12);
  --amber: #f0b429;
  --amber-dim: rgba(240, 180, 41, 0.12);
  --blue: #4aa8ff;
  --radius: 12px;
  --shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
  --font: -apple-system, "Segoe UI", system-ui, Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "Cascadia Code", Consolas, "SF Mono", Menlo, monospace;
}

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

html, body { height: 100%; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.45;
  overflow: hidden;
}

button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
input, textarea, select { font: inherit; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: #2a3648; border-radius: 6px; border: 2px solid var(--bg); }
::-webkit-scrollbar-track { background: transparent; }

/* ---------- topbar ---------- */
.topbar {
  height: 58px;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 20px;
  border-bottom: 1px solid var(--border);
  background: rgba(13, 18, 25, 0.9);
  backdrop-filter: blur(8px);
  position: relative;
  z-index: 20;
}

.logo { display: flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 700; letter-spacing: 0.2px; }
.logo svg { display: block; }
.logo .accent { color: var(--green); }

.top-status {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 13px;
  border: 1px solid var(--border);
  background: var(--panel);
}
.top-status .dot { width: 9px; height: 9px; border-radius: 50%; }
.top-status.ok { color: var(--green); border-color: rgba(47, 208, 138, 0.35); background: var(--green-dim); }
.top-status.bad { color: var(--red); border-color: rgba(255, 92, 108, 0.4); background: var(--red-dim); }
.top-status.warn { color: var(--amber); border-color: rgba(240, 180, 41, 0.4); background: var(--amber-dim); }

.top-actions { margin-left: auto; display: flex; gap: 10px; align-items: center; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 14px;
  border-radius: 9px;
  border: 1px solid var(--border-strong);
  background: var(--panel-2);
  color: var(--text);
  font-weight: 600;
  font-size: 13px;
  transition: background 0.15s, border-color 0.15s, transform 0.05s;
  white-space: nowrap;
}
.btn:hover { background: var(--hover); border-color: #3a4c66; }
.btn:active { transform: translateY(1px); }
.btn svg { flex: 0 0 auto; }

.btn.primary {
  background: linear-gradient(180deg, var(--green), var(--green-strong));
  border-color: transparent;
  color: #06281a;
}
.btn.primary:hover { filter: brightness(1.08); background: linear-gradient(180deg, var(--green), var(--green-strong)); }

.btn.danger { color: var(--red); }
.btn.danger:hover { background: var(--red-dim); border-color: rgba(255, 92, 108, 0.4); }

.btn.icon { padding: 8px; }
.btn.sm { padding: 5px 10px; font-size: 12px; border-radius: 7px; }
.btn[disabled] { opacity: 0.55; cursor: default; pointer-events: none; }

/* ---------- layout ---------- */
.layout { display: flex; height: calc(100vh - 58px); }

.sidebar {
  width: 320px;
  flex: 0 0 320px;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  background: #0f1620;
}

.side-head { padding: 14px 14px 10px; display: flex; flex-direction: column; gap: 10px; }

.filter-chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip {
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  transition: all 0.15s;
}
.chip:hover { color: var(--text); border-color: var(--border-strong); }
.chip.active { color: var(--text); background: var(--panel-2); border-color: var(--border-strong); }
.chip .n { opacity: 0.75; font-weight: 700; margin-left: 4px; }
.chip.c-up.active { color: var(--green); background: var(--green-dim); border-color: rgba(47, 208, 138, 0.35); }
.chip.c-down.active { color: var(--red); background: var(--red-dim); border-color: rgba(255, 92, 108, 0.4); }

.search-box { position: relative; }
.search-box svg { position: absolute; left: 10px; top: 50%; transform: translateY(-50%); color: var(--faint); }
.search-box input {
  width: 100%;
  padding: 8px 12px 8px 32px;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  outline: none;
}
.search-box input:focus { border-color: rgba(47, 208, 138, 0.5); }
.search-box input::placeholder { color: var(--faint); }

.monitor-list { flex: 1; overflow-y: auto; padding: 4px 8px 16px; }

.mon-item {
  width: 100%;
  text-align: left;
  padding: 10px 10px 9px;
  border-radius: 10px;
  border: 1px solid transparent;
  display: flex;
  flex-direction: column;
  gap: 7px;
  transition: background 0.12s;
}
.mon-item:hover { background: var(--panel); }
.mon-item.selected { background: var(--panel-2); border-color: var(--border); box-shadow: inset 3px 0 0 var(--green); }
.mon-item .row1 { display: flex; align-items: center; gap: 8px; }
.mon-item .name { font-weight: 600; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mon-item .row2 { display: flex; align-items: center; gap: 8px; justify-content: space-between; }
.mon-item .ping { font-size: 11.5px; color: var(--faint); font-family: var(--mono); white-space: nowrap; }

.up-badge { font-size: 11.5px; font-weight: 700; font-family: var(--mono); }
.up-badge.good { color: var(--green); }
.up-badge.mid { color: var(--amber); }
.up-badge.poor { color: var(--red); }
.up-badge.none { color: var(--faint); }

/* ---------- status dot ---------- */
.dot { width: 10px; height: 10px; border-radius: 50%; flex: 0 0 auto; }
.dot.up { background: var(--green); animation: pulse 2.4s ease-out infinite; }
.dot.down { background: var(--red); animation: blink 1s steps(2, start) infinite; }
.dot.pending { background: var(--amber); }
.dot.paused { background: var(--faint); }

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(47, 208, 138, 0.45); }
  70% { box-shadow: 0 0 0 7px rgba(47, 208, 138, 0); }
  100% { box-shadow: 0 0 0 0 rgba(47, 208, 138, 0); }
}
@keyframes blink { 50% { opacity: 0.45; } }

/* ---------- pills ---------- */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 11px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.3px;
}
.pill.up { color: var(--green); background: var(--green-dim); }
.pill.down { color: var(--red); background: var(--red-dim); }
.pill.pending { color: var(--amber); background: var(--amber-dim); }
.pill.paused { color: var(--muted); background: rgba(139, 153, 171, 0.12); }

/* ---------- beats ---------- */
.beats { display: flex; gap: 3px; align-items: flex-end; height: 26px; overflow: hidden; }
.beat {
  width: 7px;
  height: 19px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--green), var(--green-strong));
  flex: 0 0 auto;
  transition: transform 0.1s, filter 0.1s;
}
.beat.down { background: linear-gradient(180deg, #ff6d7c, #f04b5c); height: 26px; }
.beat.empty { background: #202b3a; height: 12px; }
.beat:hover { transform: scaleY(1.12); filter: brightness(1.2); }
.beats.sm { height: 19px; gap: 2px; }
.beats.sm .beat { width: 5px; height: 14px; border-radius: 2px; }
.beats.sm .beat.down { height: 19px; }
.beats.sm .beat.empty { height: 9px; }
.beats.lg { height: 32px; gap: 4px; }
.beats.lg .beat { width: 9px; height: 23px; }
.beats.lg .beat.down { height: 32px; }
.beats.lg .beat.empty { height: 14px; }

.beats-meta { display: flex; justify-content: space-between; font-size: 11px; color: var(--faint); margin-top: 6px; }

/* ---------- main ---------- */
.main { flex: 1; overflow-y: auto; padding: 22px 26px 40px; min-width: 0; }
.container { max-width: 1160px; margin: 0 auto; }

.banner {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 12px 16px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 92, 108, 0.4);
  background: var(--red-dim);
  color: var(--red);
  font-weight: 600;
  margin-bottom: 18px;
}
.banner button { color: inherit; text-decoration: underline; font-weight: 700; }

.overview-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}
.ostat {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.ostat .v { font-size: 24px; font-weight: 800; font-family: var(--mono); }
.ostat .v.green { color: var(--green); }
.ostat .v.red { color: var(--red); }
.ostat .l { font-size: 12px; color: var(--muted); margin-top: 2px; }

.section-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 4px 2px 12px;
}
.section-title h2 { font-size: 15px; font-weight: 700; }
.section-title .sub { font-size: 12px; color: var(--faint); }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 14px; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px 13px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}
.card:hover { border-color: var(--border-strong); transform: translateY(-2px); box-shadow: var(--shadow); }
.card.down-card { border-color: rgba(255, 92, 108, 0.45); }
.card .head { display: flex; align-items: center; gap: 9px; }
.card .head .name { font-weight: 700; font-size: 15px; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card .url { font-size: 12px; color: var(--faint); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-top: -6px; }
.card .foot { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 12px; color: var(--muted); }

.kv { display: inline-flex; gap: 5px; align-items: baseline; }
.kv b { color: var(--text); font-family: var(--mono); font-weight: 600; }
.sep { color: var(--faint); opacity: 0.6; }

.cert-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11.5px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 6px;
}
.cert-chip.ok { color: var(--green); background: var(--green-dim); }
.cert-chip.warn { color: var(--amber); background: var(--amber-dim); }
.cert-chip.bad { color: var(--red); background: var(--red-dim); }

.empty-state { text-align: center; padding: 80px 20px; color: var(--muted); }
.empty-state h3 { font-size: 18px; margin-bottom: 8px; color: var(--text); }
.empty-state p { margin-bottom: 18px; }

/* ---------- detail ---------- */
.detail-head { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 6px; flex-wrap: wrap; }
.detail-head .titles { flex: 1; min-width: 240px; }
.detail-head h1 { font-size: 24px; font-weight: 800; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.detail-head .url-line { margin-top: 4px; font-size: 13px; color: var(--muted); word-break: break-all; }
.detail-head .meta-line { margin-top: 6px; font-size: 12px; color: var(--faint); }
.detail-actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

.back-btn { color: var(--muted); font-weight: 600; display: inline-flex; align-items: center; gap: 6px; margin-bottom: 14px; }
.back-btn:hover { color: var(--text); }

.stat-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin: 18px 0; }
.stat-card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
.stat-card .label { font-size: 12px; color: var(--muted); font-weight: 600; letter-spacing: 0.2px; }
.stat-card .value { font-size: 25px; font-weight: 800; font-family: var(--mono); margin-top: 4px; }
.stat-card .value .unit { font-size: 14px; color: var(--muted); font-weight: 600; }
.stat-card .sub { font-size: 11.5px; color: var(--faint); margin-top: 4px; }
.stat-card .value.green { color: var(--green); }
.stat-card .value.amber { color: var(--amber); }
.stat-card .value.red { color: var(--red); }

.panel { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; margin-bottom: 16px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.panel-head h3 { font-size: 14px; font-weight: 700; }

.tabs { display: flex; gap: 4px; background: var(--bg); padding: 3px; border-radius: 9px; border: 1px solid var(--border); }
.tab { padding: 4px 12px; border-radius: 7px; font-size: 12px; font-weight: 600; color: var(--muted); }
.tab:hover { color: var(--text); }
.tab.active { background: var(--panel-2); color: var(--text); border: 1px solid var(--border-strong); }

.chart-wrap { position: relative; }
.chart-wrap svg { display: block; width: 100%; height: auto; }
.chart-empty { padding: 46px 0; text-align: center; color: var(--faint); }

.events { display: flex; flex-direction: column; }
.event-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 4px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.event-row:last-child { border-bottom: none; }
.event-row .badge { flex: 0 0 74px; }
.event-row .msg { flex: 1; min-width: 0; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.event-row .dur { color: var(--faint); font-size: 12px; white-space: nowrap; }
.event-row .when { color: var(--faint); font-size: 12px; white-space: nowrap; font-family: var(--mono); }

/* ---------- modal ---------- */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 8, 12, 0.62);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 7vh 16px 16px;
  z-index: 50;
  overflow-y: auto;
}
.overlay.hidden { display: none; }

.modal {
  background: var(--panel-2);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  box-shadow: var(--shadow);
  width: 100%;
  max-width: 560px;
  animation: pop 0.16s ease-out;
}
@keyframes pop { from { transform: translateY(8px) scale(0.98); opacity: 0; } }

.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px 0; }
.modal-head h3 { font-size: 16px; font-weight: 700; }
.modal-body { padding: 16px 20px 20px; }
.modal-foot { display: flex; justify-content: flex-end; gap: 10px; padding: 0 20px 20px; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-size: 12px; font-weight: 600; color: var(--muted); margin-bottom: 5px; }
.field input, .field textarea {
  width: 100%;
  padding: 9px 12px;
  border-radius: 9px;
  border: 1px solid var(--border-strong);
  background: var(--bg);
  color: var(--text);
  outline: none;
}
.field input:focus, .field textarea:focus { border-color: rgba(47, 208, 138, 0.55); }
.field .hint { font-size: 11px; color: var(--faint); margin-top: 4px; }
.field textarea { resize: vertical; min-height: 110px; font-family: var(--mono); font-size: 13px; }

.link-btn { color: var(--blue); font-size: 12.5px; font-weight: 600; }
.link-btn:hover { text-decoration: underline; }

.settings-note { font-size: 12px; color: var(--faint); margin-bottom: 14px; line-height: 1.5; }

.confirm-text { color: var(--muted); line-height: 1.55; }
.confirm-text b { color: var(--text); }

/* ---------- toasts ---------- */
.toasts { position: fixed; right: 18px; bottom: 18px; display: flex; flex-direction: column; gap: 10px; z-index: 100; max-width: 360px; }
.toast {
  background: var(--panel-2);
  border: 1px solid var(--border-strong);
  border-left: 3px solid var(--blue);
  border-radius: 10px;
  padding: 11px 14px;
  font-size: 13px;
  box-shadow: var(--shadow);
  animation: slide-in 0.2s ease-out;
  word-break: break-word;
}
.toast.ok { border-left-color: var(--green); }
.toast.err { border-left-color: var(--red); }
.toast.warn { border-left-color: var(--amber); }
@keyframes slide-in { from { transform: translateX(24px); opacity: 0; } }

/* ---------- tooltip ---------- */
.tooltip {
  position: fixed;
  z-index: 200;
  pointer-events: none;
  background: #0b1017;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 7px 10px;
  font-size: 12px;
  color: var(--text);
  white-space: pre-line;
  box-shadow: var(--shadow);
  max-width: 300px;
  display: none;
  line-height: 1.5;
}

/* ---------- responsive ---------- */
@media (max-width: 940px) {
  .sidebar { display: none; }
  .main { padding: 16px 14px 40px; }
  .topbar { padding: 0 14px; gap: 10px; }
  .top-status .lbl { display: none; }
  .cards { grid-template-columns: 1fr; }
  .btn .btxt { display: none; }
  .btn { padding: 8px 10px; }
}