:root {
  --primary: #1a1f6b;
  --secondary: #464d90;
  --muted: #8891c8;
  --accent: #4356f5;
  --accent-strong: #1a1f6b;
  --accent-soft: #eef0fb;
  --highlight: #b56a12;
  --bg: #eef0fb;
  --card: #ffffff;
  --border: #d4d8f0;
  --shadow: rgba(14, 18, 64, 0.10);
  --danger: #9f1d35;
  --success: #16725d;
  --text: #1a1f6b;
  --sidebar-width: 280px;
  color: var(--text);
  font-size: 14px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background: var(--bg);
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 24px 18px;
  background: var(--primary);
  color: var(--card);
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  padding: 0 6px;
}

.brand-logo {
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
}

.brand-name {
  display: grid;
  gap: 1px;
}

.brand-title {
  font-size: 18px;
  font-weight: 760;
}

.brand-subtitle {
  color: rgba(255, 255, 255, 0.70);
  font-size: 12px;
  text-transform: uppercase;
}

.nav-list {
  display: grid;
  gap: 6px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  padding: 9px 10px;
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  font-weight: normal;
}

.nav-link:hover,
.nav-link:focus-visible {
  background: rgba(255, 255, 255, 0.10);
  color: var(--card);
  outline: none;
}

.nav-link.is-active {
  background: var(--card);
  color: var(--primary);
}

.sidebar-footer {
  margin-top: auto;
  display: grid;
  gap: 12px;
}

.session-email {
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
  overflow-wrap: anywhere;
}

.ghost-button,
.icon-button,
.primary-button {
  min-height: 40px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 700;
}

.ghost-button {
  background: rgba(255, 255, 255, 0.10);
  color: var(--card);
}

.ghost-button:hover,
.ghost-button:focus-visible {
  background: rgba(255, 255, 255, 0.16);
  outline: none;
}

.primary-button {
  width: 100%;
  background: var(--accent);
  color: var(--card);
  padding: 0 18px;
}

.primary-button:hover,
.primary-button:focus-visible {
  background: var(--accent-strong);
  outline: none;
}

.primary-button:disabled {
  cursor: wait;
  opacity: 0.7;
}

.app-main {
  min-width: 0;
  display: grid;
  grid-template-rows: auto 1fr;
}

.topbar {
  min-height: 72px;
  padding: 16px 32px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.78);
  display: flex;
  align-items: center;
  gap: 16px;
}

.topbar-title {
  margin: 0;
  font-size: 20px;
  font-weight: 760;
}

.icon-button {
  width: 42px;
  background: var(--card);
  color: var(--primary);
  border-color: var(--border);
  display: none;
  place-items: center;
  gap: 4px;
}

.icon-button span {
  width: 17px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
}

.content {
  min-width: 0;
  padding: 32px;
}

.home-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  max-width: 1040px;
}

.metric-card,
.login-panel,
.empty-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 12px 30px var(--shadow);
}

.metric-card {
  min-height: 140px;
  padding: 22px;
  display: grid;
  align-content: space-between;
  gap: 18px;
}

.metric-label {
  margin: 0;
  color: var(--secondary);
  font-size: 13px;
  font-weight: 760;
  text-transform: uppercase;
}

.metric-value {
  margin: 0;
  color: var(--primary);
  font-size: 24px;
  font-weight: 780;
  overflow-wrap: anywhere;
}

.metric-value.is-small {
  font-size: 20px;
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 20px;
}

.login-panel {
  width: min(100%, 420px);
  padding: 28px;
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 26px;
}

.login-brand img {
  width: 46px;
  height: 46px;
}

.login-brand h1 {
  margin: 0;
  color: var(--primary);
  font-size: 24px;
}

.login-form {
  display: grid;
  gap: 16px;
}

.field {
  display: grid;
  gap: 7px;
}

.field label {
  color: var(--secondary);
  font-size: 13px;
  font-weight: 760;
}

.field input {
  min-height: 44px;
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0 12px;
  color: var(--primary);
  background: var(--card);
}

.field select {
  min-height: 44px;
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0 12px;
  color: var(--primary);
  background: var(--card);
}

.field input:focus,
.field select:focus {
  border-color: var(--accent);
  outline: 3px solid rgba(67, 86, 245, 0.16);
}

.form-error,
.page-error {
  margin: 0;
  color: var(--danger);
  font-size: 14px;
  font-weight: 650;
}

.page-error {
  padding: 18px;
  background: var(--card);
  border: 1px solid rgba(159, 29, 53, 0.24);
  border-radius: 8px;
}

.usage-page {
  display: grid;
  gap: 18px;
  max-width: 1280px;
}

.admin-page {
  display: grid;
  gap: 18px;
  max-width: 1280px;
}

.admin-filter {
  display: grid;
  grid-template-columns: minmax(180px, 1.4fr) minmax(180px, 1fr) minmax(140px, 180px) minmax(140px, 180px) minmax(120px, 150px);
  align-items: end;
  gap: 12px;
}

.admin-filter-button {
  min-height: 44px;
}

.usage-filter {
  display: grid;
  grid-template-columns: minmax(160px, 220px) minmax(160px, 220px) minmax(130px, 160px);
  align-items: end;
  gap: 12px;
  max-width: 640px;
}

.usage-filter-button {
  min-height: 44px;
}

.usage-panel {
  min-width: 0;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 12px 30px var(--shadow);
}

.usage-panel-header,
.usage-modal-header {
  min-height: 58px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.usage-panel-header h2,
.usage-modal-header h2 {
  margin: 0;
  color: var(--primary);
  font-size: 16px;
  font-weight: 760;
}

.ghost-action-button {
  min-height: 36px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0 12px;
  background: var(--card);
  color: var(--primary);
  font-weight: 740;
}

.ghost-action-button:hover,
.ghost-action-button:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  outline: none;
}

.ghost-action-button:disabled {
  cursor: wait;
  opacity: 0.65;
}

.inline-action {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  padding: 16px;
}

.detail-grid.is-compact {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  padding: 0;
}

.detail-item {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.detail-item span {
  color: var(--secondary);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.detail-item strong {
  overflow-wrap: anywhere;
}

.step-list,
.tool-list {
  display: grid;
  gap: 12px;
  padding: 16px;
}

.tool-list {
  padding: 12px 0 0;
}

.step-item,
.tool-item {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  display: grid;
  gap: 12px;
}

.tool-item {
  background: var(--accent-soft);
}

.step-item-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.step-item-header div {
  display: grid;
  gap: 2px;
}

.step-item-header span {
  color: var(--secondary);
  font-size: 12px;
}

.json-details summary {
  color: var(--secondary);
  cursor: pointer;
  font-weight: 800;
}

.json-details pre {
  max-height: 280px;
  overflow: auto;
  margin: 8px 0 0;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #f7f8fc;
  color: var(--primary);
  font-size: 12px;
}

.empty-inline {
  margin: 0;
  color: var(--secondary);
}

.usage-modal {
  position: fixed;
  z-index: 80;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
}

.usage-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(26, 31, 107, 0.38);
}

.usage-modal-panel {
  position: relative;
  z-index: 1;
  width: min(100%, 920px);
  max-height: min(760px, 88vh);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 18px 50px rgba(14, 18, 64, 0.22);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  overflow: hidden;
}

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

.usage-table {
  width: 100%;
  border-collapse: collapse;
  color: var(--primary);
  font-size: 14px;
}

.usage-table th,
.usage-table td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  white-space: nowrap;
}

.usage-table th {
  position: sticky;
  top: 0;
  background: var(--accent-soft);
  color: var(--secondary);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  max-width: 100%;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 9px;
  background: var(--accent-soft);
  color: var(--secondary);
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}

.status-active,
.status-verified,
.status-valid,
.status-configured,
.status-sent,
.status-delivered {
  border-color: rgba(22, 114, 93, 0.28);
  background: rgba(22, 114, 93, 0.10);
  color: var(--success);
}

.status-error,
.status-failed,
.status-invalid,
.status-missing,
.status-hard-bounce,
.status-complaint,
.status-blocked {
  border-color: rgba(159, 29, 53, 0.28);
  background: rgba(159, 29, 53, 0.10);
  color: var(--danger);
}

.status-paused,
.status-pending,
.status-soft-bounce {
  border-color: rgba(181, 106, 18, 0.30);
  background: rgba(181, 106, 18, 0.10);
  color: var(--highlight);
}

.empty-panel {
  max-width: 760px;
  padding: 28px;
}

.empty-panel h2 {
  margin: 0;
  color: var(--primary);
  font-size: 22px;
}

.empty-panel p {
  margin: 10px 0 0;
  color: var(--secondary);
}

.sidebar-backdrop {
  display: none;
}

@media (max-width: 900px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    z-index: 30;
    inset: 0 auto 0 0;
    width: min(86vw, var(--sidebar-width));
    transform: translateX(-100%);
    transition: transform 160ms ease;
  }

  .app-shell.is-sidebar-open .sidebar {
    transform: translateX(0);
  }

  .sidebar-backdrop {
    display: block;
    position: fixed;
    z-index: 20;
    inset: 0;
    border: 0;
    background: rgba(26, 31, 107, 0.30);
    opacity: 0;
    pointer-events: none;
  }

  .app-shell.is-sidebar-open .sidebar-backdrop {
    opacity: 1;
    pointer-events: auto;
  }

  .icon-button {
    display: grid;
  }

  .topbar {
    padding: 14px 18px;
  }

  .content {
    padding: 20px;
  }

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

  .usage-filter {
    grid-template-columns: 1fr;
    max-width: none;
  }

  .admin-filter {
    grid-template-columns: 1fr;
  }

  .detail-grid,
  .detail-grid.is-compact {
    grid-template-columns: 1fr;
  }

}

@media (max-width: 520px) {
  .metric-card {
    min-height: 120px;
    padding: 18px;
  }

  .metric-value {
    font-size: 21px;
  }

  .login-panel {
    padding: 22px;
  }

  .usage-panel-header,
  .usage-modal-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .usage-modal {
    padding: 12px;
  }

  .usage-table {
    font-size: 13px;
  }
}