:root {
  --bg: #0f1115;
  --panel: #171a21;
  --line: rgba(255, 255, 255, 0.1);
  --text: #f3f5f7;
  --muted: #9aa3af;
  --accent: #d6ff3f;
  --accent-ink: #142000;
  --danger: #ff7b7b;
  --ok: #6dffb0;
  --warn: #ffd36e;
  --font: "IBM Plex Sans", "Noto Sans SC", sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body { font-family: var(--font); background: var(--bg); color: var(--text); }
button, input, select { font: inherit; }
.hidden { display: none !important; }
.kicker { letter-spacing: 0.14em; font-size: 0.72rem; color: var(--muted); margin: 0 0 8px; }
.btn {
  border: 1px solid var(--line); background: transparent; color: var(--text);
  border-radius: 10px; padding: 10px 14px; cursor: pointer;
}
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 700; }
.btn.ghost:hover, .btn:hover { border-color: rgba(255,255,255,0.28); }
.btn.danger { color: var(--danger); border-color: rgba(255,123,123,0.35); }
.btn.sm { padding: 6px 10px; font-size: 0.8rem; }
.err { color: var(--danger); min-height: 1.2em; font-size: 0.85rem; }

.login-screen {
  min-height: 100vh; display: grid; place-items: center; padding: 24px;
  background: radial-gradient(circle at 20% 10%, rgba(214,255,63,0.08), transparent 35%), var(--bg);
}
.login-card {
  width: min(420px, 100%); background: var(--panel); border: 1px solid var(--line);
  border-radius: 18px; padding: 28px;
}
.login-card h1 { margin: 0 0 8px; font-size: 1.6rem; }
.login-card .sub { color: var(--muted); margin: 0 0 20px; line-height: 1.55; }
.login-card label, .modal-card label, .settings-form label {
  display: grid; gap: 6px; margin-bottom: 12px; color: var(--muted); font-size: 0.85rem;
}
.login-card input, .modal-card input, .modal-card select, .settings-form input, .toolbar-right input, .toolbar-right select {
  padding: 11px 12px; border-radius: 10px; border: 1px solid var(--line);
  background: #0f1218; color: var(--text); outline: none;
}
.login-card input:focus, .modal-card input:focus, .settings-form input:focus { border-color: rgba(214,255,63,0.45); }
.login-card .btn { width: 100%; margin-top: 4px; }

.shell { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.side {
  border-right: 1px solid var(--line); background: #12151b; padding: 20px 14px;
  display: flex; flex-direction: column; gap: 18px;
}
.brand strong { display: block; font-size: 1.15rem; }
.brand span { color: var(--muted); font-size: 0.8rem; }
.side nav { display: grid; gap: 6px; }
.nav-item {
  text-align: left; border: 0; background: transparent; color: var(--muted);
  padding: 10px 12px; border-radius: 10px; cursor: pointer;
}
.nav-item.on, .nav-item:hover { background: rgba(214,255,63,0.1); color: var(--text); }
.side-foot { margin-top: auto; display: grid; gap: 10px; }
.side-foot p { margin: 0; color: var(--muted); font-size: 0.85rem; }

.main { padding: 24px 28px 40px; }
.topbar { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 18px; }
.topbar h2 { margin: 0 0 4px; font-size: 1.45rem; }
.topbar p { margin: 0; color: var(--muted); }
.panel { display: none; }
.panel.on { display: block; }

.stat-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-bottom: 14px; }
.stat-grid.compact { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.stat {
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 16px;
}
.stat b { display: block; font-size: 1.6rem; margin-top: 6px; }
.stat span { color: var(--muted); font-size: 0.82rem; }

.split { display: grid; grid-template-columns: 1.2fr 1fr; gap: 12px; }
.split.triple { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 16px;
}
.card h3 { margin: 0 0 12px; font-size: 0.95rem; }

.bars { display: grid; gap: 8px; }
.bar-row { display: grid; grid-template-columns: 72px 1fr 28px; gap: 8px; align-items: center; font-size: 0.8rem; color: var(--muted); }
.bar-track { height: 8px; border-radius: 999px; background: rgba(255,255,255,0.06); overflow: hidden; }
.bar-fill { height: 100%; background: linear-gradient(90deg, #9be15d, var(--accent)); border-radius: 999px; }
.feed { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.feed li { font-size: 0.85rem; color: var(--muted); border-bottom: 1px solid var(--line); padding-bottom: 8px; }
.feed li strong { color: var(--text); font-weight: 600; }

.toolbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 12px; }
.toolbar h3 { margin: 0; }
.toolbar-right { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.toolbar-filters { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.toolbar-filters select {
  background: #12151c;
  color: #e8ecf3;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px;
  padding: 8px 10px;
  font: inherit;
}
.table-wrap {
  overflow: auto; border: 1px solid var(--line); border-radius: 14px; background: var(--panel);
}
table { width: 100%; border-collapse: collapse; min-width: 860px; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); font-size: 0.88rem; }
th { color: var(--muted); font-weight: 600; background: rgba(255,255,255,0.02); }
tr:last-child td { border-bottom: 0; }
.tag {
  display: inline-block; padding: 3px 8px; border-radius: 999px; border: 1px solid var(--line); font-size: 0.75rem;
}
.tag.ok { color: var(--ok); border-color: rgba(109,255,176,0.35); }
.tag.warn { color: var(--warn); border-color: rgba(255,211,110,0.35); }
.tag.off { color: var(--danger); border-color: rgba(255,123,123,0.35); }
.row-actions { display: flex; gap: 6px; flex-wrap: wrap; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 14px; }
.form-grid .full { grid-column: 1 / -1; }
.checks { display: grid; gap: 10px; margin: 8px 0 14px; }
.checks label { display: flex; align-items: center; gap: 8px; color: var(--text); margin: 0; }

.modal {
  position: fixed; inset: 0; background: rgba(0,0,0,0.55); display: grid; place-items: center; padding: 20px; z-index: 20;
}
.modal-card {
  width: min(420px, 100%); background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 20px;
}
.modal-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.modal-top h3 { margin: 0; }
.modal-top button { border: 0; background: transparent; color: var(--muted); cursor: pointer; font-size: 1rem; }

.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%) translateY(12px);
  background: #fff; color: #111; padding: 10px 16px; border-radius: 999px; font-weight: 600;
  font-size: 0.88rem; opacity: 0; pointer-events: none; transition: 0.2s; z-index: 30;
}
.chart-card canvas { width: 100% !important; max-height: 260px; }
.chart-card.wide { grid-column: 1 / -1; }
.chart-card.wide canvas { max-height: 320px; }
.chart-hint {
  margin: 0 0 8px;
  color: #8b93a1;
  font-size: 0.78rem;
}
.settings-form textarea {
  padding: 11px 12px; border-radius: 10px; border: 1px solid var(--line);
  background: #0f1218; color: var(--text); outline: none; resize: vertical; font: inherit;
}
.side-foot a { text-align: center; text-decoration: none; display: block; }


@media (max-width: 1100px) {
  .stat-grid, .stat-grid.compact, .split, .split.triple, .form-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .side { border-right: 0; border-bottom: 1px solid var(--line); }
  .stat-grid, .stat-grid.compact, .split, .split.triple, .form-grid { grid-template-columns: 1fr; }
}