/* Home Assistant inspired theme (light + dark, follows the OS setting). */
:root {
  --primary-color: #03a9f4;
  --primary-color-rgb: 3, 169, 244;
  --accent-color: #ff9800;
  --primary-background-color: #fafafa;
  --secondary-background-color: #e5e5e5;
  --card-background-color: #ffffff;
  --sidebar-background-color: #ffffff;
  --app-header-background-color: #ffffff;
  --primary-text-color: #212121;
  --secondary-text-color: #727272;
  --disabled-text-color: #bdbdbd;
  --divider-color: rgba(0, 0, 0, 0.12);
  --input-fill-color: #f5f5f5;
  --success-color: #43a047;
  --warning-color: #ffa600;
  --error-color: #db4437;
  --info-color: #039be5;
  --state-off-color: #9e9e9e;
  --card-shadow: 0 2px 2px 0 rgba(0,0,0,.14), 0 1px 5px 0 rgba(0,0,0,.12), 0 3px 1px -2px rgba(0,0,0,.2);
  --radius: 12px;
  --sidebar-width: 256px;
  color-scheme: light;
}
/* Dark: follows the OS unless the user picked a theme (html[data-theme]). */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --primary-background-color: #111111;
    --secondary-background-color: #282828;
    --card-background-color: #1c1c1c;
    --sidebar-background-color: #1c1c1c;
    --app-header-background-color: #111111;
    --primary-text-color: #e1e1e1;
    --secondary-text-color: #9b9b9b;
    --disabled-text-color: #6f6f6f;
    --divider-color: rgba(225, 225, 225, 0.12);
    --input-fill-color: #2a2a2a;
    --card-shadow: none;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --primary-background-color: #111111;
  --secondary-background-color: #282828;
  --card-background-color: #1c1c1c;
  --sidebar-background-color: #1c1c1c;
  --app-header-background-color: #111111;
  --primary-text-color: #e1e1e1;
  --secondary-text-color: #9b9b9b;
  --disabled-text-color: #6f6f6f;
  --divider-color: rgba(225, 225, 225, 0.12);
  --input-fill-color: #2a2a2a;
  --card-shadow: none;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: Roboto, "Noto Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1.5;
  background: var(--primary-background-color);
  color: var(--primary-text-color);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary-color); text-decoration: none; }
a:hover { text-decoration: underline; }
.mdi { font-size: 20px; line-height: 1; }
.mono { font-family: "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12.5px; }
.muted { color: var(--secondary-text-color); }
.small { font-size: 12px; }
.nowrap { white-space: nowrap; }
.right { text-align: right; }
.hidden { display: none !important; }

/* ---------- App shell ---------- */
.app { display: flex; min-height: 100vh; }
.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: var(--sidebar-background-color);
  border-right: 1px solid var(--divider-color);
  display: flex; flex-direction: column;
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.brand {
  height: 56px; display: flex; align-items: center; gap: 12px;
  padding: 0 16px; font-size: 18px; font-weight: 400;
  border-bottom: 1px solid var(--divider-color);
}
.brand .mdi { color: var(--primary-color); font-size: 26px; }
.nav-section {
  padding: 16px 16px 4px; font-size: 11px; font-weight: 500;
  letter-spacing: .08em; text-transform: uppercase; color: var(--secondary-text-color);
}
.nav-item {
  display: flex; align-items: center; gap: 16px;
  margin: 2px 8px; padding: 0 12px; height: 44px; border-radius: 6px;
  color: var(--primary-text-color); font-weight: 500;
}
.nav-item .mdi { color: var(--secondary-text-color); font-size: 22px; }
.nav-item:hover { background: rgba(var(--primary-color-rgb), .08); text-decoration: none; }
.nav-item.active { background: rgba(var(--primary-color-rgb), .12); color: var(--primary-color); }
.nav-item.active .mdi { color: var(--primary-color); }
.sidebar-footer {
  margin-top: auto; padding: 12px 16px; border-top: 1px solid var(--divider-color);
  display: flex; align-items: center; gap: 12px; font-size: 13px;
}
.avatar {
  width: 32px; height: 32px; border-radius: 50%; background: var(--primary-color); color: #fff;
  display: grid; place-items: center; font-weight: 500; text-transform: uppercase; flex-shrink: 0;
}

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  height: 56px; display: flex; align-items: center; gap: 12px; padding: 0 24px;
  background: var(--app-header-background-color);
  border-bottom: 1px solid var(--divider-color);
  position: sticky; top: 0; z-index: 5;
}
.topbar h1 { font-size: 20px; font-weight: 400; margin: 0; }
.topbar .spacer { flex: 1; }
.menu-btn { display: none; }
.content { padding: 24px; max-width: 1400px; width: 100%; }
.page-intro { color: var(--secondary-text-color); margin: -4px 0 20px; max-width: 760px; }
.breadcrumb { font-size: 13px; color: var(--secondary-text-color); margin-bottom: 8px; }

/* ---------- Cards & grid ---------- */
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.grid-2 { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(420px, 1fr)); }
.stack { display: flex; flex-direction: column; gap: 16px; }
.card {
  background: var(--card-background-color);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  border: 1px solid var(--divider-color);
  overflow: hidden;
}
.card-header {
  display: flex; align-items: center; gap: 12px;
  padding: 16px 16px 8px; font-size: 18px; font-weight: 400;
}
.card-header .spacer { flex: 1; }
.card-header .mdi { color: var(--secondary-text-color); }
.card-content { padding: 8px 16px 16px; }
.card-actions {
  display: flex; gap: 8px; justify-content: flex-end; flex-wrap: wrap;
  padding: 8px 12px; border-top: 1px solid var(--divider-color);
}

/* Stat tiles */
.tile { display: flex; align-items: center; gap: 16px; padding: 16px; }
.tile-icon {
  width: 44px; height: 44px; border-radius: 50%; flex-shrink: 0;
  display: grid; place-items: center;
  background: rgba(var(--primary-color-rgb), .15); color: var(--primary-color);
}
.tile-icon .mdi { font-size: 24px; }
.tile-icon.ok { background: rgba(67,160,71,.15); color: var(--success-color); }
.tile-icon.warn { background: rgba(255,166,0,.15); color: var(--warning-color); }
.tile-icon.err { background: rgba(219,68,55,.15); color: var(--error-color); }
.tile-value { font-size: 24px; font-weight: 400; line-height: 1.2; }
.tile-label { color: var(--secondary-text-color); font-size: 13px; }

/* Entity rows (HA "entities" card) */
.entity { display: flex; align-items: center; gap: 16px; padding: 8px 0; min-height: 48px; }
.entity + .entity { border-top: 1px solid var(--divider-color); }
.entity .grow { flex: 1; min-width: 0; }
.entity .name { font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.entity .secondary { color: var(--secondary-text-color); font-size: 12.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.state-icon {
  width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; flex-shrink: 0;
  background: var(--secondary-background-color); color: var(--state-off-color);
}
.state-icon.on { background: rgba(var(--primary-color-rgb), .15); color: var(--primary-color); }
.state-icon.ok { background: rgba(67,160,71,.15); color: var(--success-color); }
.state-icon.err { background: rgba(219,68,55,.15); color: var(--error-color); }
.state-icon.warn { background: rgba(255,166,0,.15); color: var(--warning-color); }

/* ---------- Badges ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 6px; padding: 2px 10px; border-radius: 12px;
  font-size: 12px; font-weight: 500; white-space: nowrap;
  background: var(--secondary-background-color); color: var(--secondary-text-color);
}
.badge::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.badge.plain::before { display: none; }
.badge.connected, .badge.ok { background: rgba(67,160,71,.15); color: var(--success-color); }
.badge.error { background: rgba(219,68,55,.15); color: var(--error-color); }
.badge.connecting, .badge.warn { background: rgba(255,166,0,.15); color: var(--warning-color); }
.badge.disabled, .badge.paused { color: var(--state-off-color); }
.badge.tag { background: rgba(var(--primary-color-rgb), .12); color: var(--primary-color); }
.badge.tag::before { display: none; }
.pulse::before { animation: pulse 1.6s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .3; } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px; height: 36px; padding: 0 16px;
  border-radius: 18px; border: none; cursor: pointer; font: inherit; font-weight: 500;
  font-size: 14px; letter-spacing: .02em; white-space: nowrap;
  background: transparent; color: var(--primary-color);
}
.btn .mdi { font-size: 18px; }
.btn:hover { background: rgba(var(--primary-color-rgb), .08); text-decoration: none; }
.btn.primary { background: var(--primary-color); color: #fff; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.outlined { border: 1px solid var(--divider-color); }
.btn.danger { color: var(--error-color); }
.btn.danger:hover { background: rgba(219,68,55,.08); }
.btn.danger.filled { background: var(--error-color); color: #fff; }
.btn:disabled { opacity: .5; cursor: default; }
.icon-btn {
  width: 40px; height: 40px; border-radius: 50%; border: none; background: transparent; cursor: pointer;
  display: inline-grid; place-items: center; color: var(--secondary-text-color);
}
.icon-btn:hover { background: rgba(var(--primary-color-rgb), .1); color: var(--primary-color); text-decoration: none; }
.icon-btn.danger:hover { background: rgba(219,68,55,.1); color: var(--error-color); }
.inline-form { display: inline; margin: 0; }
.actions { display: flex; gap: 2px; justify-content: flex-end; align-items: center; }

/* ---------- Forms ---------- */
.form { max-width: 720px; }
.form-section { padding: 8px 16px 16px; }
.form-section h3 { font-size: 15px; font-weight: 500; margin: 16px 0 4px; }
.form-section .help { color: var(--secondary-text-color); font-size: 13px; margin: 0 0 12px; }
.field { display: flex; flex-direction: column; gap: 4px; margin-bottom: 16px; }
.field label { font-size: 12.5px; color: var(--secondary-text-color); font-weight: 500; }
.field .hint { font-size: 12px; color: var(--secondary-text-color); }
.field .error { font-size: 12px; color: var(--error-color); }
.row { display: flex; gap: 16px; flex-wrap: wrap; }
.row > .field { flex: 1; min-width: 180px; }
input[type=text], input[type=number], input[type=password], input[type=datetime-local], select, textarea {
  font: inherit; color: var(--primary-text-color);
  background: var(--input-fill-color);
  border: none; border-bottom: 1px solid var(--secondary-text-color);
  border-radius: 4px 4px 0 0; padding: 10px 12px; min-height: 42px; width: 100%;
}
input:focus, select:focus, textarea:focus { outline: none; border-bottom: 2px solid var(--primary-color); }
.field.invalid input, .field.invalid select { border-bottom-color: var(--error-color); }
textarea { min-height: 80px; resize: vertical; }

/* HA-style toggle */
.switch-row { display: flex; align-items: center; gap: 16px; padding: 10px 0; }
.switch-row + .switch-row { border-top: 1px solid var(--divider-color); }
.switch-row .grow { flex: 1; }
.switch-row .title { font-weight: 500; }
.switch-row .desc { font-size: 12.5px; color: var(--secondary-text-color); }
.switch { position: relative; width: 36px; height: 14px; flex-shrink: 0; }
.switch input { opacity: 0; width: 0; height: 0; position: absolute; }
.switch .track { position: absolute; inset: 0; border-radius: 7px; background: var(--state-off-color); opacity: .5; cursor: pointer; transition: .2s; }
.switch .thumb {
  position: absolute; top: -3px; left: -2px; width: 20px; height: 20px; border-radius: 50%;
  background: #fafafa; box-shadow: 0 1px 3px rgba(0,0,0,.4); transition: .2s; pointer-events: none;
}
.switch input:checked ~ .track { background: var(--primary-color); opacity: .5; }
.switch input:checked ~ .thumb { left: 18px; background: var(--primary-color); }
.switch input:focus-visible ~ .thumb { outline: 2px solid var(--primary-color); outline-offset: 2px; }

/* Checkbox chips (topic picker) */
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 16px;
  border: 1px solid var(--divider-color); cursor: pointer; font-size: 12.5px; user-select: none;
}
.chip input { margin: 0; accent-color: var(--primary-color); }
.chip:has(input:checked) { background: rgba(var(--primary-color-rgb), .12); border-color: var(--primary-color); color: var(--primary-color); }

.chip-box {
  max-height: 280px; overflow-y: auto; padding: 8px 12px; border-radius: 8px;
  border: 1px solid var(--divider-color); background: var(--input-fill-color);
}
.chip-group + .chip-group { margin-top: 10px; }
.chip-group-title { font-size: 12px; font-weight: 500; color: var(--secondary-text-color); margin-bottom: 4px; }
.chip-box .chip { background: var(--card-background-color); }

/* Segmented control */
.segmented { display: inline-flex; border: 1px solid var(--divider-color); border-radius: 18px; overflow: hidden; }
.segmented button {
  border: none; background: transparent; color: var(--primary-text-color); font: inherit; font-size: 13px;
  padding: 6px 14px; cursor: pointer;
}
.segmented button + button { border-left: 1px solid var(--divider-color); }
.segmented button.active { background: rgba(var(--primary-color-rgb), .15); color: var(--primary-color); font-weight: 500; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; }
table.table { width: 100%; border-collapse: collapse; }
.table th {
  text-align: left; font-weight: 500; font-size: 12px; color: var(--secondary-text-color);
  padding: 10px 16px; border-bottom: 1px solid var(--divider-color); white-space: nowrap;
}
.table td { padding: 10px 16px; border-bottom: 1px solid var(--divider-color); vertical-align: middle; }
.table tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background: rgba(var(--primary-color-rgb), .04); }
.table td.num, .table th.num { text-align: right; font-variant-numeric: tabular-nums; }
.table .clickable { cursor: pointer; }
.bar { height: 6px; border-radius: 3px; background: var(--secondary-background-color); overflow: hidden; min-width: 80px; }
.bar > span { display: block; height: 100%; background: var(--primary-color); }

/* ---------- Empty state / misc ---------- */
.empty { text-align: center; padding: 48px 24px; color: var(--secondary-text-color); }
.empty > .mdi { font-size: 48px; color: var(--disabled-text-color); display: block; margin-bottom: 8px; }
.empty h3 { color: var(--primary-text-color); font-weight: 400; margin: 0 0 4px; font-size: 18px; }
.empty p { margin: 0 auto 16px; max-width: 460px; }
.callout {
  display: flex; gap: 12px; padding: 12px 16px; border-radius: 8px; font-size: 13px;
  background: rgba(var(--primary-color-rgb), .08); border-left: 4px solid var(--primary-color);
}
.callout.warn { background: rgba(255,166,0,.1); border-left-color: var(--warning-color); }
.callout.err { background: rgba(219,68,55,.08); border-left-color: var(--error-color); }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 24px; font-size: 13.5px; }
.kv dt { color: var(--secondary-text-color); }
.kv dd { margin: 0; overflow-wrap: anywhere; }
.chart-box { position: relative; height: 280px; }
.chart-box.small { height: 180px; }

/* Live feed */
.feed { max-height: 420px; overflow-y: auto; font-family: "Roboto Mono", ui-monospace, Menlo, monospace; font-size: 12.5px; }
.feed-row { display: grid; grid-template-columns: 90px 1fr auto; gap: 12px; padding: 4px 16px; border-bottom: 1px solid var(--divider-color); }
.feed-row.new { animation: flash 1.2s ease-out; }
.feed-row .topic { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.feed-row .val { font-weight: 500; text-align: right; }
@keyframes flash { from { background: rgba(var(--primary-color-rgb), .18); } to { background: transparent; } }

/* Event log */
.events { list-style: none; margin: 0; padding: 0; font-size: 12.5px; max-height: 220px; overflow-y: auto; }
.events li { display: grid; grid-template-columns: 70px 92px 1fr; gap: 8px; padding: 4px 0; border-bottom: 1px solid var(--divider-color); }
.events .ev-connected, .events .ev-reconnected, .events .ev-subscribed { color: var(--success-color); }
.events .ev-error, .events .ev-lost { color: var(--error-color); }
.events .ev-connecting, .events .ev-stopped, .events .ev-unsubscribed { color: var(--secondary-text-color); }

/* Toasts */
.toasts { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); z-index: 50; display: flex; flex-direction: column; gap: 8px; }
.toast {
  background: #323232; color: #fff; padding: 12px 20px; border-radius: 6px; min-width: 280px; max-width: 560px;
  box-shadow: 0 3px 8px rgba(0,0,0,.3); display: flex; gap: 12px; align-items: center; transition: opacity .4s;
}
.toast.err { background: #b3261e; }

/* Dialog */
dialog {
  border: none; border-radius: 24px; padding: 0; max-width: 480px; width: calc(100% - 32px);
  background: var(--card-background-color); color: var(--primary-text-color);
  box-shadow: 0 11px 15px -7px rgba(0,0,0,.2), 0 24px 38px 3px rgba(0,0,0,.14);
}
dialog::backdrop { background: rgba(0,0,0,.45); }
dialog .dlg-title { font-size: 20px; padding: 24px 24px 8px; }
dialog .dlg-body { padding: 0 24px 16px; color: var(--secondary-text-color); }
dialog .dlg-actions { display: flex; justify-content: flex-end; gap: 8px; padding: 8px 16px 16px; }

/* Login */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: 100%; max-width: 400px; text-align: center; padding: 32px 24px; }
.login-card .mdi-logo { font-size: 56px; color: var(--primary-color); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .sidebar { position: fixed; left: 0; top: 0; z-index: 30; transform: translateX(-100%); transition: transform .2s; }
  .app.nav-open .sidebar { transform: none; box-shadow: 0 0 24px rgba(0,0,0,.3); }
  .menu-btn { display: inline-grid; }
  .topbar { padding: 0 8px 0 4px; }
  .content { padding: 16px; }
  .grid-2 { grid-template-columns: 1fr; }
  .hide-sm { display: none; }
  .feed-row { grid-template-columns: 70px 1fr auto; padding: 4px 8px; }
}