:root {
  --deltaops-surface: #ffffff;
  --deltaops-surface-muted: #f5f7fa;
  --deltaops-border: #d8dee7;
  --deltaops-text: #1f2937;
  --deltaops-muted: #5f6b7a;
  --deltaops-accent: #0d6efd;
  --deltaops-accent-dark: #0a58ca;
  --deltaops-danger: #b42318;
  --deltaops-radius: 0.65rem;
}

body {
  min-height: 100vh;
  background: var(--deltaops-surface-muted);
  color: var(--deltaops-text);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(13, 110, 253, 0.35);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -5rem;
  z-index: 1000;
  padding: 0.65rem 1rem;
  background: #000;
  color: #fff;
}

.skip-link:focus {
  top: 1rem;
}

.app-topbar {
  background: var(--deltaops-surface);
  border-bottom: 1px solid var(--deltaops-border);
}

.app-topbar__inner {
  width: min(100% - 2rem, 76rem);
  margin-inline: auto;
  min-height: 4rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  justify-content: space-between;
}

.app-brand {
  color: var(--deltaops-text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.app-context {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.app-tenant-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--deltaops-muted);
}

.app-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.app-menu {
  position: relative;
}

.app-menu > summary {
  list-style: none;
  cursor: pointer;
  border: 1px solid var(--deltaops-border);
  border-radius: var(--deltaops-radius);
  padding: 0.55rem 0.75rem;
  background: var(--deltaops-surface);
  font-weight: 600;
}

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

.app-menu[open] > summary {
  border-color: var(--deltaops-accent);
}

.app-menu__panel {
  position: absolute;
  right: 0;
  top: calc(100% + 0.5rem);
  z-index: 20;
  width: min(20rem, calc(100vw - 2rem));
  padding: 0.75rem;
  background: var(--deltaops-surface);
  border: 1px solid var(--deltaops-border);
  border-radius: var(--deltaops-radius);
  box-shadow: 0 0.75rem 2rem rgba(31, 41, 55, 0.12);
}

.app-menu__panel ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.app-menu__panel li + li {
  margin-top: 0.4rem;
}

.app-main {
  width: min(100% - 2rem, 76rem);
  margin: 0 auto;
  padding: 1.5rem 0 3rem;
}

.breadcrumbs {
  margin-bottom: 1rem;
  color: var(--deltaops-muted);
  font-size: 0.925rem;
}

.card {
  background: var(--deltaops-surface);
  border: 1px solid var(--deltaops-border);
  border-radius: var(--deltaops-radius);
  padding: clamp(1rem, 3vw, 1.75rem);
  box-shadow: 0 0.25rem 1rem rgba(31, 41, 55, 0.05);
}

.card--narrow {
  width: min(100%, 32rem);
  margin-inline: auto;
}

.stack > * + * {
  margin-top: 1rem;
}

.form-field label {
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 600;
}

.form-control {
  display: block;
  width: 100%;
  min-height: 2.75rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid #aeb8c5;
  border-radius: 0.45rem;
  background: #fff;
  color: var(--deltaops-text);
}

.form-errors,
.errorlist {
  margin: 0.4rem 0 0;
  color: var(--deltaops-danger);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.55rem 0.9rem;
  border: 1px solid transparent;
  border-radius: 0.45rem;
  background: var(--deltaops-accent);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  line-height: 1.2;
}

.button:hover {
  background: var(--deltaops-accent-dark);
  color: #fff;
}

.button--secondary {
  background: #fff;
  color: var(--deltaops-text);
  border-color: var(--deltaops-border);
}

.button--secondary:hover {
  background: #eef2f6;
  color: var(--deltaops-text);
}

.button--plain {
  width: 100%;
  justify-content: flex-start;
  background: transparent;
  color: var(--deltaops-text);
  border-color: transparent;
  text-align: left;
}

.button--plain:hover {
  background: var(--deltaops-surface-muted);
  color: var(--deltaops-text);
}

.tenant-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
  gap: 0.75rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.tenant-list form,
.tenant-list button {
  width: 100%;
}

.message-list {
  margin: 0 0 1rem;
  padding: 0;
  list-style: none;
}

.message {
  padding: 0.75rem 1rem;
  background: #eef6ff;
  border: 1px solid #b6d4fe;
  border-radius: var(--deltaops-radius);
}

.muted {
  color: var(--deltaops-muted);
}

.auth-layout {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1rem;
}

.auth-header {
  margin-bottom: 1.25rem;
}

@media (max-width: 48rem) {
  .app-topbar__inner {
    align-items: flex-start;
    padding-block: 0.75rem;
    flex-direction: column;
  }

  .app-actions {
    width: 100%;
    justify-content: space-between;
  }

  .app-menu {
    flex: 1 1 auto;
  }

  .app-menu > summary {
    text-align: center;
  }

  .app-menu__panel {
    left: 0;
    right: auto;
  }

  .button {
    touch-action: manipulation;
  }
}