:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #eef1f5;
  --text: #18202b;
  --muted: #647084;
  --border: #d9dee7;
  --primary: #176b87;
  --primary-strong: #0f4f64;
  --success: #14835d;
  --notice: #b26b00;
  --warning: #b6461d;
  --danger: #b42318;
  --shadow: 0 16px 40px rgba(25, 31, 42, 0.08);
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #111418;
  --surface: #1b2027;
  --surface-2: #252b34;
  --text: #f1f5f9;
  --muted: #a6b0c0;
  --border: #363f4c;
  --primary: #4fb1ce;
  --primary-strong: #8bd8ed;
  --success: #4fc08d;
  --notice: #e3a33f;
  --warning: #ed7d4f;
  --danger: #ff756c;
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

button,
input,
select,
textarea {
  font: inherit;
}

.app-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 0 0 40px;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-height: 48px;
  padding: 6px 4px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  /* background: linear-gradient(140deg, var(--primary), var(--primary-strong)); */
  color: #fff;
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

[data-theme="dark"] .brand-mark {
  color: #0c2028;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.2;
  font-weight: 700;
}

h2 {
  margin: 0;
  font-size: 1.05rem;
}

h3 {
  margin: 0 0 8px;
}

.header-actions,
.dialog-actions,
.card-actions,
.usage-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.header-menus {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: 6px;
}

.menu-dropdown {
  position: relative;
}

.menu-dropdown summary {
  list-style: none;
  border: none;
  border-radius: 5px;
  min-height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 8px;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  background: transparent;
  color: var(--text);
}

.menu-dropdown summary::-webkit-details-marker {
  display: none;
}

.menu-dropdown[open] summary,
.menu-dropdown summary:hover {
  background: var(--surface-2);
}

.menu-panel {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  z-index: 30;
  min-width: 170px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 6px;
  display: grid;
  gap: 4px;
}

.menu-item {
  width: 100%;
  border: 1px solid transparent;
  border-radius: 4px;
  min-height: 28px;
  text-align: left;
  background: transparent;
  color: var(--text);
  font-size: 0.8rem;
  padding: 4px 8px;
  cursor: pointer;
}

.menu-item:hover {
  border-color: var(--primary);
  background: var(--surface-2);
}

.menu-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.5;
  padding: 3px 6px;
}

.header-user {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  min-width: 220px;
  margin-left: auto;
}

.auth-status {
  min-height: 30px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.user-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 3px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 0.76rem;
}

.user-chip img {
  width: 20px;
  height: 20px;
  border-radius: 50%;
}

.auth-status .button {
  min-height: 28px;
  padding: 4px 8px;
  font-size: 0.8rem;
  font-weight: 500;
  border-radius: 5px;
}

.button,
.icon-button {
  border: 1px solid var(--border);
  border-radius: 8px;
  min-height: 38px;
  cursor: pointer;
  background: var(--surface);
  color: var(--text);
}

.button {
  padding: 8px 12px;
  font-weight: 700;
}

.icon-button {
  width: 38px;
  display: inline-grid;
  place-items: center;
  font-size: 1.1rem;
}

.button:hover,
.icon-button:hover {
  border-color: var(--primary);
}


.user-menu {
  position: relative;
}

.user-menu summary {
  list-style: none;
  cursor: pointer;
}

.user-menu summary::-webkit-details-marker {
  display: none;
}

.user-menu .user-menu-trigger:hover,
.user-menu[open] .user-menu-trigger {
  background: var(--surface-2);
}

.user-menu-panel {
  right: 0;
  left: auto;
  min-width: 140px;
}
.button-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

[data-theme="dark"] .button-primary {
  color: #102028;
}

.button-secondary {
  background: var(--surface-2);
}

.button-ghost {
  background: transparent;
}

.button-danger {
  color: var(--danger);
}

.button-danger.subtle {
  background: transparent;
}

/* Content grid layout */
.content-grid {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 16px;
  align-items: start;
}

.side-panel {
  display: grid;
  gap: 16px;
}

.side-actions {
  display: flex;
  gap: 8px;
}

.panel,
.empty-state {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 16px;
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

/* Preset navigation in sidebar */
.preset-nav {
  display: grid;
  gap: 2px;
}

.preset-nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  width: 100%;
  transition: background 0.15s;
}

.preset-nav-item:hover {
  background: var(--surface-2);
}

.preset-nav-item.registered {
  color: var(--muted);
  opacity: 0.6;
  cursor: default;
}

.preset-nav-item.registered:hover {
  background: transparent;
}

.preset-nav-item .preset-icon {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
}

.preset-nav-item.registered .preset-icon {
  background: var(--muted);
}

.preset-nav-item .preset-badge {
  margin-left: auto;
  font-size: 0.72rem;
  color: var(--muted);
  background: var(--surface-2);
  padding: 2px 6px;
  border-radius: 4px;
}

/* Service table */
.service-table-wrapper {
  overflow-x: auto;
}

.service-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.service-table th,
.service-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
}

.service-table th {
  background: var(--surface-2);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.service-table tr:last-child td {
  border-bottom: none;
}

.service-table tr:hover td {
  background: var(--surface-2);
}

.service-table .service-name-cell {
  font-weight: 600;
}

.service-table .usage-cell {
  white-space: nowrap;
}

.service-table .progress-cell {
  min-width: 120px;
}

.service-table .progress-cell .progress-track {
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: var(--surface-2);
  overflow: hidden;
}

.service-table .progress-cell .progress-fill {
  height: 100%;
  border-radius: inherit;
  background: var(--success);
}

.service-table .progress-cell .progress-fill.notice {
  background: var(--notice);
}

.service-table .progress-cell .progress-fill.warning {
  background: var(--warning);
}

.service-table .progress-cell .progress-fill.danger {
  background: var(--danger);
}

.service-table .actions-cell {
  white-space: nowrap;
}

.service-table .actions-cell .button {
  padding: 4px 8px;
  min-height: 28px;
  font-size: 0.8rem;
}

.service-table .rate-cell {
  font-weight: 600;
  white-space: nowrap;
}

.service-table .rate-cell.normal {
  color: var(--success);
}

.service-table .rate-cell.notice {
  color: var(--notice);
}

.service-table .rate-cell.warning {
  color: var(--warning);
}

.service-table .rate-cell.danger {
  color: var(--danger);
}

.service-table .usage-unavailable {
  color: var(--muted);
  font-size: 0.8rem;
  font-style: italic;
}

.sync-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 32px 18px;
}

.empty-state p {
  color: var(--muted);
}

/* Form and dialog styles */
.field {
  display: grid;
  gap: 6px;
}

.field span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.compact-field {
  grid-template-columns: auto minmax(160px, 220px);
  align-items: center;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  padding: 9px 10px;
}

textarea {
  resize: vertical;
}

.dialog {
  width: min(680px, calc(100% - 24px));
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0;
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
}

.dialog::backdrop {
  background: rgba(12, 16, 22, 0.55);
}

.service-form {
  padding: 18px;
  display: grid;
  gap: 14px;
}

.dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.form-error {
  min-height: 20px;
  margin: 0;
  color: var(--danger);
  font-size: 0.88rem;
}

.form-success {
  min-height: 20px;
  margin: 0;
  color: var(--success);
  font-size: 0.88rem;
}

.research-note {
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-2);
}

.research-note p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 980px) {
  .app-header {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 8px 0;
  }

  .header-menus {
    margin-left: 0;
  }

  .header-user {
    min-width: 0;
    justify-content: flex-start;
  }

  .content-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .app-shell {
    width: min(100% - 20px, 1180px);
    padding-top: 0;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .compact-field {
    grid-template-columns: 1fr;
  }

  .header-menus {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 4px;
  }

  .menu-dropdown summary {
    width: 100%;
  }

  .menu-panel {
    right: 0;
    left: auto;
    min-width: 150px;
  }

  .header-user {
    width: 100%;
  }

  .service-table th:nth-child(4),
  .service-table td:nth-child(4) {
    display: none;
  }
}