:root {
  --font-display: "Rockwell Nova", "Sitka Display", "Cambria", serif;
  --font-body: "Aptos", "Segoe UI Variable Text", "Trebuchet MS", sans-serif;

  --color-bg: #f5f6f0;
  --color-bg-muted: #ecede3;
  --color-surface: #ffffff;
  --color-surface-strong: #f8f8f4;
  --color-text: #1f2622;
  --color-text-subtle: #4e5a52;
  --color-border: #d4d8ce;
  --color-accent: #1b5f4d;
  --color-accent-strong: #134638;
  --color-accent-soft: #d7efe5;

  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --radius-sm: 0.5rem;
  --radius-md: 0.9rem;
  --radius-lg: 1.4rem;
  --shadow-soft: 0 20px 35px -25px rgba(19, 38, 31, 0.4);
}

* {
  box-sizing: border-box;
}

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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  color: var(--color-text);
  background:
    radial-gradient(circle at 15% 15%, #fdfefb 0, #f7f8f2 32%, transparent 65%),
    radial-gradient(circle at 85% 0%, #e4efe8 0, transparent 48%),
    var(--color-bg);
  font-family: var(--font-body);
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration-color: rgba(27, 95, 77, 0.35);
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-color: var(--color-accent);
}

.layout-container {
  width: min(70rem, calc(100% - 2.5rem));
  margin-inline: auto;
}

.section {
  padding-block: clamp(2.5rem, 4vw, 4.5rem);
}

.section-muted {
  background-color: rgba(236, 237, 227, 0.85);
  border-top: 1px solid rgba(212, 216, 206, 0.7);
  border-bottom: 1px solid rgba(212, 216, 206, 0.7);
}

.stack {
  --stack-space: var(--space-3);
}

.stack > * {
  margin: 0;
}

.stack > * + * {
  margin-top: var(--stack-space);
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.surface {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-soft);
}

.text-lead {
  color: var(--color-text-subtle);
  font-size: clamp(1rem, 1.2vw + 0.7rem, 1.2rem);
  max-width: 50ch;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.2vw + 1rem, 2.3rem);
  line-height: 1.15;
}

.action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  padding: 0.68rem 1.25rem;
  transition: transform 140ms ease, box-shadow 140ms ease, background-color 140ms ease;
}

.action:hover {
  transform: translateY(-1px);
}

.action-primary {
  background-color: var(--color-accent);
  color: #f8fcfa;
  box-shadow: 0 14px 24px -18px rgba(19, 70, 56, 0.9);
}

.action-primary:hover {
  background-color: var(--color-accent-strong);
}

.action-secondary {
  background-color: var(--color-accent-soft);
  border-color: #b3d8c8;
  color: #174638;
}

.action-large {
  padding: 0.9rem 1.6rem;
  font-size: 1.05rem;
}

.site-shell {
  display: flex;
  flex-direction: column;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(8px);
  background-color: rgba(245, 246, 240, 0.92);
  border-bottom: 1px solid rgba(212, 216, 206, 0.85);
}

.site-header-inner,
.site-footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  min-height: 4rem;
}

.brand-mark {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.site-nav {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.site-nav-link {
  text-decoration: none;
  color: var(--color-text-subtle);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
}

.site-nav-link:hover {
  color: var(--color-text);
  background-color: rgba(255, 255, 255, 0.8);
}

.site-main {
  flex: 1;
}

.site-footer {
  border-top: 1px solid rgba(212, 216, 206, 0.8);
  margin-top: auto;
}

.site-footer p {
  margin: 0;
  color: var(--color-text-subtle);
}

.landing-page {
  overflow: clip;
}

.landing-hero {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  align-items: center;
}

.landing-copy {
  --stack-space: var(--space-4);
}

.eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-strong);
  background-color: var(--color-accent-soft);
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
}

.hero-title {
  margin: 0;
  font-family: var(--font-display);
  line-height: 1.03;
  letter-spacing: -0.01em;
  font-size: clamp(2.05rem, 5vw, 3.6rem);
  max-width: 15ch;
}

.panel-title {
  margin: 0;
  font-size: 1.25rem;
}

.value-list {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: var(--space-2);
  color: var(--color-text-subtle);
}

.feature-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card {
  --stack-space: var(--space-2);
}

.feature-card p {
  color: var(--color-text-subtle);
}

.onboarding-strip {
  --stack-space: var(--space-4);
  background: linear-gradient(145deg, #fbfcf8 0%, #f3f7f1 100%);
}

.onboarding-steps {
  margin: 0;
  padding-left: 1.25rem;
  display: grid;
  gap: var(--space-2);
  color: var(--color-text-subtle);
}

.onboarding-shell {
  max-width: 56rem;
}

.onboarding-card,
.onboarding-success-card {
  --stack-space: var(--space-4);
}

.onboarding-form {
  --stack-space: var(--space-3);
}

.form-grid {
  display: grid;
  gap: var(--space-3);
}

.form-row {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: minmax(8.5rem, 11rem) minmax(0, 1fr);
  align-items: start;
}

.form-label {
  font-weight: 700;
  padding-top: 0.58rem;
}

.form-control-stack {
  display: grid;
  gap: var(--space-1);
}

.form-input {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: #fff;
  padding: 0.55rem 0.7rem;
  color: var(--color-text);
  font: inherit;
}

.form-input:focus {
  outline: 2px solid color-mix(in srgb, var(--color-accent) 35%, transparent);
  border-color: var(--color-accent);
}

.field-error {
  color: #8f3026;
  font-size: 0.93rem;
  min-height: 1.1rem;
}

.form-feedback {
  margin: 0;
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.9rem;
  border: 1px solid transparent;
}

.form-feedback ul {
  margin: 0;
  padding-left: 1.15rem;
  display: grid;
  gap: 0.2rem;
}

.form-feedback-error {
  border-color: #e8c2bc;
  background-color: #fff2f0;
  color: #7f2b22;
}

.validation-summary-valid {
  display: none;
}

.onboarding-help {
  margin: 0;
  color: var(--color-text-subtle);
}

.onboarding-success-card {
  border-left: 0.4rem solid var(--color-accent);
}

.success-details {
  margin: 0;
  display: grid;
  gap: var(--space-2);
}

.success-detail-row {
  display: grid;
  gap: var(--space-1);
  grid-template-columns: minmax(9rem, 11rem) minmax(0, 1fr);
  align-items: baseline;
}

.success-detail-row dt {
  font-weight: 700;
}

.success-detail-row dd {
  margin: 0;
}

.error-page {
  display: grid;
  place-items: center;
}

.error-card {
  --stack-space: var(--space-3);
  max-width: 48rem;
  border-left: 0.4rem solid #aa3b2f;
}

.error-title {
  margin: 0;
  color: #8f3026;
  font-family: var(--font-display);
}

.error-subtitle {
  margin: 0;
  color: #8f3026;
  font-size: 1.1rem;
}

.error-request-id {
  color: var(--color-text-subtle);
}

.tenant-workflow-page {
  margin: 0;
  min-height: 100vh;
  color: var(--color-text);
  background-color: #f1f3eb;
  font-family: var(--font-body);
}

.tenant-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.tenant-shell-region {
  margin: 0;
}

.tenant-shell-main {
  flex: 1;
  display: grid;
  grid-template-columns: 18rem minmax(0, 1fr);
  min-height: 0;
}

.tenant-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: var(--space-3);
  min-height: 3.7rem;
  padding-inline: var(--space-4);
  border-bottom: 1px solid var(--color-border);
  background-color: rgba(248, 250, 243, 0.96);
  backdrop-filter: blur(5px);
}

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

.tenant-header-right {
  justify-content: flex-end;
}

.tenant-app-name {
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: 0.02em;
}

.tenant-db-label {
  font-weight: 700;
  color: var(--color-text-subtle);
}

.tenant-nav-toggle,
.tenant-system-menu {
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-subtle);
  font: inherit;
  font-size: 0.92rem;
  padding: 0.42rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.tenant-nav-toggle:hover,
.tenant-system-menu:hover {
  color: var(--color-text);
  background-color: rgba(0, 0, 0, 0.06);
}

.tenant-system-menu-wrapper {
  position: relative;
}

.tenant-system-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 0.35rem);
  min-width: 11rem;
  margin: 0;
  padding: 0.35rem 0;
  list-style: none;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 24px -8px rgba(0, 0, 0, 0.18);
  z-index: 40;
}

.tenant-system-dropdown a {
  display: block;
  padding: 0.5rem 0.9rem;
  text-decoration: none;
  color: var(--color-text);
  font-size: 0.92rem;
}

.tenant-system-dropdown a:hover {
  background-color: var(--color-bg-muted);
}

.tenant-logout-form {
  margin: 0;
}

.tenant-logout-btn {
  display: block;
  width: 100%;
  padding: 0.5rem 0.9rem;
  border: none;
  background: none;
  color: var(--color-text);
  font: inherit;
  font-size: 0.92rem;
  text-align: left;
  cursor: pointer;
}

.tenant-logout-btn:hover {
  background-color: var(--color-bg-muted);
}

.tenant-shell-sidebar {
  border-right: 1px solid var(--color-border);
  background-color: #f8faf4;
  overflow: auto;
}

.tenant-sidebar-inner {
  padding: var(--space-3);
  display: grid;
  gap: var(--space-3);
}

.tenant-sidebar-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-2);
}

.tenant-sidebar-title {
  margin: 0;
  font-size: 1rem;
}

.tenant-tree-list,
.tenant-tree-list ul {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.45rem;
}

.tenant-tree-list {
  color: var(--color-text-subtle);
}

.tenant-tree-item {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.tenant-tree-link {
  flex: 1;
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.3rem var(--space-1);
  border: none;
  border-radius: var(--radius-sm);
  background: none;
  color: var(--color-text-subtle);
  cursor: pointer;
  text-align: left;
  font-size: 0.875rem;
  min-width: 0;
  transition: background-color 0.1s, color 0.1s;
}

.tenant-tree-link:hover {
  background-color: var(--color-accent-soft);
  color: var(--color-accent-strong);
}

.tenant-tree-label {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tenant-tree-menu-wrapper {
  position: relative;
  flex-shrink: 0;
}

.tenant-tree-menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border: none;
  border-radius: var(--radius-sm);
  background: none;
  color: var(--color-text-subtle);
  cursor: pointer;
  font-size: 0.75rem;
  opacity: 0;
  transition: opacity 0.1s, background-color 0.1s;
}

.tenant-tree-item:hover .tenant-tree-menu-toggle {
  opacity: 1;
}

.tenant-tree-menu-toggle:hover {
  background-color: var(--color-bg-muted);
}

.tenant-tree-dropdown {
  position: absolute;
  right: 0;
  top: 100%;
  z-index: 50;
  min-width: 9rem;
  margin: 0;
  padding: var(--space-1);
  list-style: none;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
}

.tenant-tree-dropdown li button {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  width: 100%;
  padding: 0.35rem var(--space-2);
  border: none;
  border-radius: var(--radius-sm);
  background: none;
  color: var(--color-text);
  cursor: pointer;
  font-size: 0.875rem;
  text-align: left;
  transition: background-color 0.1s;
}

.tenant-tree-dropdown li button:hover {
  background-color: var(--color-accent-soft);
}

.tenant-tree-dropdown li button.action-danger {
  color: #8f3026;
}

.tenant-tree-dropdown li button.action-danger:hover {
  background-color: #fff2f0;
}

.tenant-tree-empty {
  font-size: 0.875rem;
  color: var(--color-text-subtle);
  padding: var(--space-1) 0;
  list-style: none;
}

/* ── Tenant Shell Content ──────────────────────────────────────────────── */

.tenant-shell-content {
  padding: var(--space-4);
  overflow: auto;
}

.tenant-content-surface {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  box-shadow: var(--shadow-soft);
}

.tenant-content-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 1.3vw + 1rem, 2rem);
}

.tenant-content-copy {
  margin: var(--space-3) 0 0;
  color: var(--color-text-subtle);
}

.tenant-load-error {
  border: 1px solid #e3bfb7;
  border-radius: var(--radius-sm);
  padding: var(--space-2);
  color: #8f3026;
  background-color: #fff2f0;
}

.tenant-shell--sidebar-collapsed .tenant-shell-main {
  grid-template-columns: 0 minmax(0, 1fr);
}

.tenant-shell--sidebar-collapsed .tenant-shell-sidebar {
  border-right: 0;
  overflow: hidden;
  width: 0;
  min-width: 0;
}

@media (max-width: 960px) {
  .landing-hero,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .landing-panel {
    padding: var(--space-4);
  }
}

@media (max-width: 680px) {
  .layout-container {
    width: min(70rem, calc(100% - 1.5rem));
  }

  .site-header-inner,
  .site-footer-inner {
    min-height: 3.5rem;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding-block: var(--space-2);
  }

  .site-nav {
    width: 100%;
    justify-content: flex-start;
  }

  .form-row,
  .success-detail-row {
    grid-template-columns: 1fr;
    gap: var(--space-1);
  }

  .form-label {
    padding-top: 0;
  }

  .tenant-header {
    padding-inline: var(--space-3);
    grid-template-columns: minmax(0, 1fr);
    justify-items: stretch;
  }

  .tenant-header-left,
  .tenant-header-center,
  .tenant-header-right {
    justify-content: space-between;
  }

  .tenant-shell-main {
    grid-template-columns: minmax(0, 1fr);
  }

  .tenant-shell-sidebar {
    position: fixed;
    top: 3.85rem;
    bottom: 0;
    left: 0;
    width: min(18rem, 86vw);
    box-shadow: 18px 0 40px -30px rgba(11, 27, 21, 0.55);
    z-index: 35;
  }

  .tenant-shell--sidebar-collapsed .tenant-shell-sidebar {
    display: none;
  }

  .tenant-shell-content {
    padding: var(--space-3);
  }

  .tenant-content-surface {
    padding: var(--space-4);
  }
}