/* MendlOps Dashboard — Dark Theme */
:root {
  --bg: #0f1117;
  --bg-card: #1a1d27;
  --bg-input: #23263a;
  --bg-hover: #262a3a;
  --border: #2d3148;
  --text: #e1e4ed;
  --text-dim: #8b8fa3;
  --accent: #6c8cff;
  --accent-hover: #8ba4ff;
  --green: #34d399;
  --yellow: #fbbf24;
  --red: #f87171;
  --orange: #fb923c;
  --radius: 8px;
  --shadow: 0 2px 8px rgba(0,0,0,.3);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

/* ── Login ────────────────────────────────────────── */
.login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1rem;
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3rem 2.5rem;
  text-align: center;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow);
}

.login-logo { font-size: 3rem; margin-bottom: .5rem; }
.login-card h1 { font-size: 1.5rem; margin-bottom: .25rem; }
.login-subtitle { color: var(--text-dim); margin-bottom: 2rem; font-size: .9rem; }

.login-card input {
  width: 100%;
  padding: .75rem 1rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 1rem;
  margin-bottom: 1rem;
  outline: none;
  transition: border-color .2s;
}

.login-card input:focus { border-color: var(--accent); }
.login-error { color: var(--red); font-size: .85rem; margin-top: .5rem; }

/* ── Buttons ──────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .6rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  color: var(--text);
  font-size: .875rem;
  cursor: pointer;
  transition: background .15s, border-color .15s;
  white-space: nowrap;
}

.btn:hover { background: var(--bg-hover); border-color: var(--accent); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-sm { padding: .35rem .65rem; font-size: .8rem; }
.btn-danger { border-color: var(--red); color: var(--red); }
.btn-danger:hover { background: rgba(248,113,113,.15); }
.btn-action { border-color: var(--accent); color: var(--accent); }
.btn-action:hover { background: rgba(108,140,255,.1); }
.btn-action:disabled { opacity: .5; cursor: not-allowed; }

/* ── Top Bar ──────────────────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .75rem 1.5rem;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  gap: 1rem;
  flex-wrap: wrap;
}

.topbar-left { display: flex; align-items: center; gap: .75rem; }
.topbar-logo { font-size: 1.4rem; }
.topbar-title { font-size: 1.1rem; font-weight: 600; }
.topbar-right { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; }
.topbar-meta { font-size: .8rem; color: var(--text-dim); }

/* ── Toggle Switch ────────────────────────────────── */
.toggle { position: relative; display: inline-block; width: 36px; height: 20px; }
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute; cursor: pointer; inset: 0;
  background: var(--bg-input); border-radius: 20px;
  transition: background .2s;
}
.toggle-slider::before {
  content: '';
  position: absolute;
  height: 14px; width: 14px;
  left: 3px; bottom: 3px;
  background: var(--text-dim);
  border-radius: 50%;
  transition: transform .2s, background .2s;
}
.toggle input:checked + .toggle-slider { background: var(--accent); }
.toggle input:checked + .toggle-slider::before { transform: translateX(16px); background: #fff; }

/* ── Badges ───────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: .15rem .55rem;
  border-radius: 12px;
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .03em;
}

.badge-healthy, .badge-ok { background: rgba(52,211,153,.15); color: var(--green); }
.badge-warning { background: rgba(251,191,36,.15); color: var(--yellow); }
.badge-critical, .badge-error { background: rgba(248,113,113,.15); color: var(--red); }
.badge-info { background: rgba(108,140,255,.15); color: var(--accent); }
.badge-unknown { background: rgba(139,143,163,.15); color: var(--text-dim); }

/* ── Panels ───────────────────────────────────────── */
.panels {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(460px, 1fr));
  gap: 1rem;
  padding: 1rem 1.5rem;
  max-width: 1800px;
  margin: 0 auto;
}

.panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel-full { grid-column: 1 / -1; }

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .75rem 1.25rem;
  cursor: pointer;
  user-select: none;
  border-bottom: 1px solid var(--border);
  transition: background .15s;
}

.panel-header:hover { background: var(--bg-hover); }
.panel-header h2 { font-size: 1rem; font-weight: 600; }
.panel-toggle { font-size: .85rem; color: var(--text-dim); transition: transform .2s; }
.panel-body.collapsed + .panel-toggle,
.panel-body[hidden] ~ .panel-toggle { transform: rotate(-90deg); }

.panel-body {
  padding: 1rem 1.25rem;
  overflow: auto;
}

.panel-body[hidden] { display: none; }
.panel-body.collapsed { display: none; }

/* ── Card Grid ────────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: .75rem;
}

.stat-card {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .75rem 1rem;
}

.stat-card .label { font-size: .75rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: .04em; }
.stat-card .value { font-size: 1.5rem; font-weight: 700; margin-top: .25rem; }
.stat-card .sub { font-size: .75rem; color: var(--text-dim); margin-top: .15rem; }

/* ── KV Grid ──────────────────────────────────────── */
.kv-grid { display: grid; grid-template-columns: auto 1fr; gap: .25rem .75rem; font-size: .875rem; }
.kv-grid .key { color: var(--text-dim); }
.kv-grid .val { font-weight: 500; word-break: break-all; }

/* ── Tables ───────────────────────────────────────── */
.table-wrap { overflow-x: auto; margin-top: .5rem; }
.table-wrap table { width: 100%; border-collapse: collapse; font-size: .825rem; }
.table-wrap th {
  text-align: left;
  padding: .5rem .75rem;
  background: var(--bg-input);
  color: var(--text-dim);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .03em;
  font-size: .75rem;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
}
.table-wrap td {
  padding: .45rem .75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.table-wrap tr:hover td { background: var(--bg-hover); }

/* ── Sub-grids ────────────────────────────────────── */
.sub-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.sub-grid-3 { grid-template-columns: repeat(3, 1fr); }
.sub-grid-4 { grid-template-columns: repeat(4, 1fr); }
.sub-grid h3 { font-size: .875rem; font-weight: 600; margin-bottom: .5rem; color: var(--accent); }

/* ── Action Rows ──────────────────────────────────── */
.action-row { display: flex; align-items: center; gap: .5rem; margin: .75rem 0; flex-wrap: wrap; }
.ip-check-form { display: flex; gap: .35rem; }
.input-sm {
  padding: .35rem .6rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: .825rem;
  width: 160px;
  outline: none;
}
.input-sm:focus { border-color: var(--accent); }

/* ── Big Number ───────────────────────────────────── */
.big-number { font-size: 2.5rem; font-weight: 700; color: var(--accent); }

/* ── Footer ───────────────────────────────────────── */
.footer {
  text-align: center;
  padding: 1.5rem;
  color: var(--text-dim);
  font-size: .8rem;
  border-top: 1px solid var(--border);
}

/* ── Loading / Error States ───────────────────────── */
.loading { color: var(--text-dim); font-style: italic; font-size: .85rem; }
.error-msg { color: var(--red); font-size: .85rem; padding: .5rem; }
.empty-msg { color: var(--text-dim); font-size: .85rem; font-style: italic; }

/* ── Responsive ───────────────────────────────────── */
@media (max-width: 1200px) {
  .sub-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .sub-grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .panels { grid-template-columns: 1fr; padding: .75rem; }
  .sub-grid, .sub-grid-3, .sub-grid-4 { grid-template-columns: 1fr; }
  .topbar { padding: .5rem .75rem; }
  .card-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
}

/* ── Severity Colors ──────────────────────────────── */
.sev-critical { color: var(--red); font-weight: 600; }
.sev-high { color: var(--orange); font-weight: 600; }
.sev-medium { color: var(--yellow); }
.sev-low { color: var(--green); }
.sev-info { color: var(--accent); }

/* ── Scrollbar ────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* ── Toast Notifications ──────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .75rem 1.25rem;
  font-size: .85rem;
  box-shadow: var(--shadow);
  animation: toast-in .25s ease-out;
  max-width: 350px;
}

.toast.toast-error { border-color: var(--red); }
.toast.toast-success { border-color: var(--green); }

@keyframes toast-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}