/* Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

html {
  color-scheme: light;
}

body {
  min-height: 100vh;
  background: var(--color-canvas);
  color: var(--color-text-primary);
  font-family: var(--font-family-base);
  font-size: var(--text-body-md-size);
  line-height: var(--text-body-md-line-height);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--color-primary);
}

button {
  font-family: inherit;
}

/* Accessibility: preserve native focus, then strengthen keyboard focus */
:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* Financial figures: align digits in fixed-width columns */
.font-tabular {
  font-variant-numeric: tabular-nums lining-nums;
}

/* Typography */
.text-h1 {
  font-size: var(--text-h1-size);
  font-weight: var(--text-h1-weight);
  line-height: var(--text-h1-line-height);
  margin: 0 0 var(--space-3);
}

.text-h2 {
  font-size: var(--text-h2-size);
  font-weight: var(--text-h2-weight);
  line-height: var(--text-h2-line-height);
  margin: 0 0 var(--space-3);
}

.text-h3 {
  font-size: var(--text-h3-size);
  font-weight: var(--text-h3-weight);
  line-height: var(--text-h3-line-height);
  margin: 0 0 var(--space-2);
}

.text-body-lg {
  font-size: var(--text-body-lg-size);
  line-height: var(--text-body-lg-line-height);
}

.text-body-sm {
  font-size: var(--text-body-sm-size);
  line-height: var(--text-body-sm-line-height);
  color: var(--color-text-secondary);
}

.text-caption {
  font-size: var(--text-caption-size);
  font-weight: var(--text-caption-weight);
  line-height: var(--text-caption-line-height);
  letter-spacing: var(--text-caption-tracking);
  color: var(--color-text-tertiary);
  text-transform: uppercase;
}

/* Style guide layout helpers */
.section {
  margin-bottom: var(--space-6);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.swatch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--space-2);
}

.swatch {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.swatch__color {
  height: 56px;
}

.swatch__label {
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-caption-size);
  background: var(--color-surface);
}

/* App shell layout */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.app-sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: var(--color-sidebar);
  border-right: 1px solid var(--color-border);
  padding: var(--space-3) var(--space-2);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.app-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.app-brand > span:last-child {
  display: flex;
  flex-direction: column;
}

.app-brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--space-5);
  height: var(--space-5);
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: var(--color-text-on-primary);
  font-weight: 700;
}

.app-brand--large .app-brand__mark {
  width: var(--space-6);
  height: var(--space-6);
  font-size: var(--text-h3-size);
}

.app-sidebar__account {
  margin-top: auto;
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
}

.app-sidebar__action {
  width: 100%;
}

.app-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  background-color: var(--color-canvas);
  background-image:
    linear-gradient(
      to right,
      var(--color-canvas) 0,
      transparent var(--grid-edge-fade),
      transparent calc(100% - var(--grid-edge-fade)),
      var(--color-canvas) 100%
    ),
    linear-gradient(
      to bottom,
      var(--color-canvas) 0,
      transparent var(--grid-edge-fade),
      transparent calc(100% - var(--grid-edge-fade)),
      var(--color-canvas) 100%
    ),
    linear-gradient(to right, var(--color-grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--color-grid-line) 1px, transparent 1px);
  background-size:
    100% 100%,
    100% 100%,
    var(--grid-size) var(--grid-size),
    var(--grid-size) var(--grid-size);
}

.app-header {
  height: var(--header-height);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0 var(--space-4);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.app-content {
  max-width: var(--content-max-width);
  width: 100%;
  margin: 0 auto;
  padding: var(--space-5);
}

.nav-toggle {
  display: none;
}

.sidebar-backdrop {
  display: none;
}

/* Authentication */
.auth-page {
  display: grid;
  place-items: center;
  padding: var(--space-4);
  background-color: var(--color-canvas);
  background-image:
    linear-gradient(to right, var(--color-grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--color-grid-line) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
}

.auth-shell {
  width: min(100%, 960px);
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  box-shadow: var(--shadow-4);
}

.auth-story,
.auth-panel {
  min-height: calc(var(--space-7) * 8);
  padding: var(--space-6);
}

.auth-story {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-5);
  background: var(--color-primary-active);
  color: var(--color-text-on-primary);
}

.auth-story .text-caption,
.auth-story p {
  color: var(--color-text-on-primary);
}

.auth-story p {
  max-width: 48ch;
  margin: 0;
  opacity: 0.82;
  font-size: var(--text-body-lg-size);
  line-height: var(--text-body-lg-line-height);
}

.auth-assurance {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-body-sm-size);
  opacity: 0.84;
}

.auth-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-4);
}

.auth-panel .text-h2 {
  margin-top: var(--space-1);
  margin-bottom: var(--space-1);
}

.auth-panel__intro,
.auth-panel__footnote {
  margin: 0;
  color: var(--color-text-secondary);
}

.auth-panel__footnote {
  font-size: var(--text-caption-size);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.auth-form__submit {
  width: 100%;
  margin-top: var(--space-1);
}

/* Workspace selector */
.workspace-selector {
  width: 100%;
  padding: var(--space-2) var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text-primary);
  font-size: var(--text-body-sm-size);
}

/* Nav list */
.app-nav {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.app-nav-secondary {
  margin-top: var(--space-1);
}

.app-nav-secondary summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  font-size: var(--text-body-sm-size);
  transition: background-color 140ms ease;
}

.app-nav-secondary summary::-webkit-details-marker {
  display: none;
}

.app-nav-secondary summary:hover {
  background: var(--color-surface-alt);
}

.app-nav-secondary summary::after {
  content: "\25BE";
  color: var(--color-text-tertiary);
  transition: transform 140ms ease;
}

.app-nav-secondary[open] summary::after {
  transform: rotate(180deg);
}

.app-nav-secondary .app-nav {
  margin-top: var(--space-1);
}

.app-nav-link {
  display: block;
  padding: var(--space-2) var(--space-2);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  text-decoration: none;
  font-size: var(--text-body-sm-size);
  transition: background-color 140ms ease, color 140ms ease;
}

.app-nav-link:hover {
  background: var(--color-surface-alt);
}

.app-nav-link[aria-current="page"] {
  background: var(--color-primary-subtle-bg);
  color: var(--color-primary);
  font-weight: 600;
}

.app-nav-link--disabled {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-2);
  border-radius: var(--radius-sm);
  color: var(--color-text-tertiary);
  font-size: var(--text-body-sm-size);
  cursor: default;
}

/* Mobile: off-canvas sidebar drawer */
@media (max-width: 1023px) {
  .nav-toggle {
    display: inline-flex;
  }

  .app-sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 40;
    transform: translateX(-100%);
    transition: transform 180ms ease-in-out;
    box-shadow: var(--shadow-4);
  }

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

  .sidebar-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(26, 26, 24, 0.4);
    z-index: 30;
  }

  .sidebar-backdrop.is-open {
    display: block;
  }

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

  .app-main {
    --grid-edge-fade: 36px;
  }
}

@media (max-width: 639px) {
  .auth-page {
    display: block;
    padding: 0;
  }

  .auth-shell {
    display: flex;
    min-height: 100vh;
    flex-direction: column;
    border: 0;
    border-radius: var(--radius-none);
  }

  .auth-story,
  .auth-panel {
    min-height: auto;
    padding: var(--space-4);
  }

  .auth-story {
    gap: var(--space-4);
  }

  .auth-story > div:nth-child(2) p,
  .auth-assurance {
    display: none;
  }

  .auth-panel {
    flex: 1;
  }
}