:root {
  --blue: #1a73e8;
  --blue-hover: #1765cc;
  --blue-soft: #e8f0fe;
  --ink: #202124;
  --ink-2: #3c4043;
  --muted: #5f6368;
  --line: #dadce0;
  --line-2: #e8eaed;
  --bg: #f8f9fa;
  --surface: #ffffff;
  --ok: #137333;
  --ok-bg: #e6f4ea;
  --warn: #b06000;
  --warn-bg: #fef7e0;
  --danger: #c5221f;
  --danger-bg: #fce8e6;
  --idle: #5f6368;
  --idle-bg: #f1f3f4;
  --shadow: 0 1px 2px 0 rgba(60, 64, 67, 0.3), 0 1px 3px 1px rgba(60, 64, 67, 0.15);
  --shadow-dialog: 0 8px 10px 1px rgba(0,0,0,.14), 0 3px 14px 2px rgba(0,0,0,.12), 0 5px 5px -3px rgba(0,0,0,.2);
  --radius: 8px;
  --font: "Roboto", system-ui, sans-serif;
  --mono: "Roboto Mono", ui-monospace, monospace;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 40px;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.4286;
  -webkit-font-smoothing: antialiased;
}

.hidden { display: none !important; }
.mono { font-family: var(--mono); font-size: 13px; }

.material-symbols-outlined {
  font-size: 20px;
  line-height: 1;
  vertical-align: middle;
  font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24;
}

/* ——— Login (Google account card feel) ——— */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  background: var(--bg);
}

.login-card {
  width: 100%;
  max-width: 450px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 48px 40px 36px;
}

.login-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.login-logo {
  color: var(--blue);
  font-size: 32px;
}

.login-product {
  font-size: 22px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: 0;
}

.login-product-sub {
  margin-top: 2px;
  font-size: 14px;
  color: var(--muted);
}

.login-title {
  margin: 0 0 var(--space-2);
  font-size: 24px;
  font-weight: 400;
  letter-spacing: 0;
}

.login-lead {
  margin: 0 0 var(--space-6);
  color: var(--ink-2);
  font-size: 16px;
  line-height: 1.5;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

/* ——— Fields ——— */
.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.field-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.1px;
}

.field-input {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}

textarea.field-input {
  min-height: 88px;
  resize: vertical;
  line-height: 1.5;
}

.field-input:hover { border-color: #bdc1c6; }
.field-input:focus {
  border-color: var(--blue);
  box-shadow: inset 0 0 0 1px var(--blue);
}

.form-error {
  margin: 0;
  color: var(--danger);
  font-size: 13px;
}

/* ——— Buttons ——— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 36px;
  padding: 0 16px;
  border: none;
  border-radius: 4px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.15px;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--blue);
  color: #fff;
}
.btn-primary:hover { background: var(--blue-hover); }

.btn-text {
  background: transparent;
  color: var(--blue);
  padding: 0 12px;
}
.btn-text:hover { background: var(--blue-soft); }

.btn-block { width: 100%; min-height: 40px; }

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
.icon-btn:hover { background: var(--idle-bg); }

/* ——— App shell ——— */
.app { min-height: 100vh; }

.app-bar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding: 0 var(--space-5);
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.app-bar-left,
.app-bar-right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.app-bar-icon { color: var(--blue); font-size: 28px; }

.app-bar-titles {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: var(--space-2);
}

.app-bar-product {
  font-size: 22px;
  font-weight: 400;
  color: var(--ink-2);
}

.app-bar-sep {
  width: 1px;
  height: 20px;
  background: var(--line);
}

.app-bar-section {
  font-size: 22px;
  font-weight: 400;
  color: var(--ink);
}

.app-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-5) var(--space-5) var(--space-7);
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.page-title {
  margin: 0;
  font-size: 28px;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.25;
}

.page-subtitle {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 14px;
}

/* ——— Metrics ——— */
.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

@media (max-width: 900px) {
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-header { flex-direction: column; align-items: stretch; }
  .login-card { padding: 36px 24px 28px; border-radius: 16px; }
}

.metric-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: var(--space-4) var(--space-5);
  min-height: 96px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-2);
}

.metric-label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.metric-value {
  font-size: 28px;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.2px;
}

/* ——— Table card ——— */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.table-card { overflow: hidden; }

.card-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 64px;
  padding: 0 var(--space-4);
  border-bottom: 1px solid var(--line-2);
}

.search-field {
  position: relative;
  flex: 1;
  max-width: 420px;
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
}

.search-field input {
  width: 100%;
  height: 40px;
  padding: 0 12px 0 40px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: var(--idle-bg);
  font: inherit;
  color: var(--ink);
  outline: none;
}

.search-field input:focus {
  background: var(--surface);
  border-color: var(--blue);
  box-shadow: inset 0 0 0 1px var(--blue);
}

.table-wrap { overflow-x: auto; }

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line-2);
  vertical-align: middle;
}

.data-table th {
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.3px;
  text-transform: uppercase;
  background: var(--surface);
}

.data-table tbody tr:hover { background: #f8f9fa; }
.data-table tbody tr:last-child td { border-bottom: none; }

.th-actions { text-align: right; }

.cell-title {
  font-weight: 500;
  color: var(--ink);
}
.cell-sub {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}
.cell-notes {
  margin-top: 4px;
  color: var(--ink-2);
  font-size: 12px;
  max-width: 280px;
}

.chip {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}
.chip-active { background: var(--ok-bg); color: var(--ok); }
.chip-recent { background: var(--warn-bg); color: var(--warn); }
.chip-idle { background: var(--idle-bg); color: var(--idle); }
.chip-revoked { background: var(--danger-bg); color: var(--danger); }

.row-actions {
  display: flex;
  justify-content: flex-end;
  gap: 4px;
  flex-wrap: wrap;
}

.row-actions .btn {
  min-height: 32px;
  padding: 0 10px;
  font-size: 13px;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding: 56px 24px;
  color: var(--muted);
}
.empty-state .material-symbols-outlined {
  font-size: 40px;
  color: #9aa0a6;
}
.empty-state p { margin: 0; }

/* ——— Dialogs ——— */
.dialog-root {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
}

.dialog-scrim {
  position: absolute;
  inset: 0;
  background: rgba(32, 33, 36, 0.6);
}

.dialog {
  position: relative;
  width: 100%;
  max-width: 480px;
  background: var(--surface);
  border-radius: 28px;
  box-shadow: var(--shadow-dialog);
  padding: var(--space-5) var(--space-5) var(--space-4);
}

.dialog-wide { max-width: 720px; }

.dialog-title {
  margin: 0;
  font-size: 22px;
  font-weight: 400;
}

.dialog-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

.dialog-hint {
  margin: 0 0 var(--space-4);
  color: var(--muted);
  font-size: 14px;
}

.dialog-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-5);
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
  padding-top: var(--space-2);
}

.conf-pre {
  margin: 0 0 var(--space-4);
  max-height: 360px;
  overflow: auto;
  padding: var(--space-4);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8f9fa;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-all;
}

/* ——— Snackbar ——— */
.snackbar {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  z-index: 60;
  min-width: 288px;
  max-width: min(90vw, 560px);
  padding: 14px 16px;
  border-radius: 4px;
  background: #323232;
  color: #fff;
  box-shadow: var(--shadow);
  font-size: 14px;
}

/* ——— Nav tabs ——— */
.tabs {
  display: flex;
  gap: 4px;
  margin-left: var(--space-5);
}
.tab {
  border: none;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 20px;
  cursor: pointer;
}
.tab:hover { background: var(--idle-bg); color: var(--ink); }
.tab.active { background: var(--blue-soft); color: var(--blue); }

.sys-meta { color: var(--muted); margin-right: 8px; font-size: 12px; }

.status-pill {
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 14px;
  border-radius: 16px;
  background: var(--ok-bg);
  color: var(--ok);
  font-weight: 500;
  font-size: 13px;
}
.status-pill.offline { background: var(--danger-bg); color: var(--danger); }

.metrics-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
@media (max-width: 1100px) {
  .metrics-5 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 700px) {
  .metrics-5 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tabs { margin-left: 8px; }
  .app-bar { flex-wrap: wrap; height: auto; padding: 10px 16px; gap: 8px; }
}

.metric-sub { color: var(--muted); font-size: 12px; margin-top: 2px; }
.bar {
  margin-top: 10px;
  height: 4px;
  background: var(--line-2);
  border-radius: 2px;
  overflow: hidden;
}
.bar > span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--blue);
  border-radius: 2px;
  transition: width .3s ease;
}

.charts-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}
@media (max-width: 960px) {
  .charts-grid { grid-template-columns: 1fr; }
}
.chart-card { padding: var(--space-4) var(--space-5) var(--space-5); }
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.card-head h2, .card-title {
  margin: 0;
  font-size: 16px;
  font-weight: 500;
}
.muted { color: var(--muted); font-size: 12px; }

.seg { display: flex; gap: 4px; }
.seg-btn {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink-2);
  font: inherit;
  font-size: 12px;
  font-weight: 500;
  padding: 6px 10px;
  border-radius: 16px;
  cursor: pointer;
}
.seg-btn.active {
  border-color: transparent;
  background: var(--blue-soft);
  color: var(--blue);
}

.toolbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.check {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-2);
  font-size: 13px;
  white-space: nowrap;
}
.detail-total {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 16px 16px;
  border-bottom: 1px solid var(--line-2);
}