/* ==========================================================================
   TRAILHEAD PREVIEW PAGE - TDS Pixel Perfect Implementation
   Based on original Salesforce Trailhead Design System
   Supports: Light/Dark Mode, LTR/RTL
   ========================================================================== */

/* ==========================================================================
   Preview Container
   ========================================================================== */

.trl-preview {
  min-height: 100vh;
  background: var(--tds-color-white);
  font-family: var(--tds-font-family-sans);
  font-size: var(--tds-font-size-md);
  color: var(--tds-color-black);
  line-height: 1.5;
  /* Prevent horizontal overflow from breaking layout */
  overflow-x: hidden;
  max-width: 100%;
  /* Enable container queries for responsive preview */
  container-type: inline-size;
  container-name: preview;
}

[data-theme="dark"] .trl-preview {
  background: var(--trl-surface);
  color: var(--color-text);
}

/* Preview Mode Banner - Shows when viewing a Trail in preview mode */
.trl-preview > .preview-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--tds-spacing-3) var(--tds-spacing-6);
  background: var(--tds-color-warning-light, #fff8e1);
  color: var(--tds-color-warning-dark, #f57c00);
  border-bottom: 2px solid var(--tds-color-warning, #ffc107);
  position: sticky;
  top: 0;
  z-index: 1000;
}

[data-theme="dark"] .trl-preview > .preview-banner {
  background: rgba(255, 193, 7, 0.15);
  color: #ffd54f;
  border-bottom-color: rgba(255, 193, 7, 0.5);
}

/* ==========================================================================
   Inline Preview Mode (Inside Builder)
   When .trl-preview is inside the builder's .main area, show only main content
   ========================================================================== */

.main .trl-preview {
  min-height: auto;
}

/* Hide elements not needed in inline preview */
.main .trl-preview > .trl-header,
.main .trl-preview > .trl-about-section,
.main .trl-preview > .trl-discover,
.main .trl-preview > .trl-landscape,
.main .trl-preview > .trl-footer,
.main .trl-preview > .skip-link {
  display: none !important;
}

/* Preview banner in inline mode - full width at top */
.main .trl-preview > .preview-banner {
  position: relative;
  margin: 0;
  border-radius: 0;
}

.trl-preview > .preview-banner .preview-banner__text {
  display: flex;
  align-items: center;
  gap: var(--tds-spacing-2);
  font-weight: var(--tds-font-weight-semibold);
}

.trl-preview > .preview-banner .publish-actions {
  display: flex;
  gap: var(--tds-spacing-2);
}

/* Skip Link - Accessibility */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--tds-color-ocean);
  color: var(--tds-color-white);
  padding: var(--tds-spacing-3) var(--tds-spacing-6);
  border-radius: var(--tds-radius-md);
  z-index: 9999;
  font-weight: var(--tds-font-weight-bold);
  text-decoration: none;
  transition: top var(--tds-duration-short) ease;
}

.skip-link:focus {
  top: var(--tds-spacing-4);
  outline: var(--tds-a11y-outline-focus);
  outline-offset: var(--tds-a11y-outline-offset-focus);
}

[dir="rtl"] .skip-link {
  left: auto;
  right: 16px;
}

/* ==========================================================================
   Salesforce Global Header (c360-nav style)
   Matches: https://a.sfdcstatic.com c360-nav web component
   ========================================================================== */

.sf-global-header {
  background: var(--tds-color-white);
  border-bottom: none;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: var(--tds-z-index-header);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] .sf-global-header {
  background: var(--trl-surface);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.sf-global-header__inner {
  width: 100%;
  max-width: 100%;
  padding: 0 20px;
  display: flex;
  align-items: center;
  height: 100%;
  gap: 0;
}

.sf-global-header__logo {
  display: flex;
  align-items: center;
  color: #0176d3;
  text-decoration: none;
  margin-inline-end: 8px;
}

.sf-global-header__logo-icon {
  width: 32px;
  height: 32px;
}

.sf-global-header__nav {
  display: flex;
  align-items: center;
  gap: 0;
  flex: 1;
  height: 100%;
}

.sf-global-header__nav-link {
  display: inline-flex;
  align-items: center;
  padding: 0 16px;
  height: 56px;
  color: #032d60;
  font-family: "Salesforce Sans", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 14px;
  font-weight: 400;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.15s ease;
  border: none;
  background: none;
  cursor: pointer;
}

.sf-global-header__nav-link:hover {
  color: #0176d3;
}

[data-theme="dark"] .sf-global-header__nav-link {
  color: var(--color-text);
}

[data-theme="dark"] .sf-global-header__nav-link:hover {
  color: var(--color-text-accent);
}

.sf-global-header__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-inline-start: auto;
}

.sf-global-header__search {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: #f3f3f3;
  border: 1px solid transparent;
  border-radius: 4px;
  color: #444444;
  font-family: "Salesforce Sans", system-ui, sans-serif;
  font-size: 14px;
  cursor: pointer;
  min-width: 180px;
  height: 36px;
  transition: all 0.15s ease;
}

.sf-global-header__search:hover {
  background: #e5e5e5;
}

.sf-global-header__search:focus {
  border-color: #0176d3;
  outline: none;
}

[data-theme="dark"] .sf-global-header__search {
  background: var(--trl-surface-soft);
  border-color: var(--trl-border);
  color: var(--color-text-secondary);
}

.sf-global-header__phone {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  color: #032d60;
  cursor: pointer;
  border-radius: 4px;
  transition: background 0.15s ease;
}

.sf-global-header__phone:hover {
  background: #f3f3f3;
}

[data-theme="dark"] .sf-global-header__phone {
  color: var(--color-text);
}

[data-theme="dark"] .sf-global-header__phone:hover {
  background: var(--trl-surface-soft);
}

.sf-global-header__login {
  font-family: "Salesforce Sans", system-ui, sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: #032d60;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 4px;
  transition: all 0.15s ease;
}

.sf-global-header__login:hover {
  color: #0176d3;
  background: #f3f3f3;
}

[data-theme="dark"] .sf-global-header__login {
  color: var(--color-text);
}

[data-theme="dark"] .sf-global-header__login:hover {
  color: var(--color-text-accent);
  background: var(--trl-surface-soft);
}

.sf-global-header__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  height: 36px;
  background: #0176d3;
  color: #ffffff;
  font-family: "Salesforce Sans", system-ui, sans-serif;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: background 0.15s ease;
}

.sf-global-header__cta:hover {
  background: #014486;
}

.sf-global-header__avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color 0.15s ease;
}

.sf-global-header__avatar:hover {
  border-color: #0176d3;
}

.sf-global-header__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ==========================================================================
   Trailhead Header (c360-contextnav style)
   Matches: hgf-c360contextnav web component
   ========================================================================== */

.trl-header {
  background: var(--tds-color-white);
  border-bottom: 1px solid #e5e5e5;
  position: sticky;
  top: 56px; /* Stack below global header (56px) */
  z-index: calc(var(--tds-z-index-header) - 1);
  height: 56px;
}

[data-theme="dark"] .trl-header {
  background: var(--trl-surface);
  border-color: var(--trl-border);
}

.trl-header__inner {
  width: 100%;
  max-width: 100%;
  padding: 0 20px;
  display: flex;
  align-items: center;
  height: 100%;
  gap: 0;
}

.trl-header__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: #032d60;
  margin-inline-end: 24px;
}

[data-theme="dark"] .trl-header__logo {
  color: var(--trl-heading);
}

.trl-header__logo-icon {
  width: 28px;
  height: 28px;
}

.trl-header__logo-text {
  font-family: "ITC Avant Garde", "AvantGarde-Demi", "Salesforce Sans", system-ui, sans-serif;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: #032d60;
}

[data-theme="dark"] .trl-header__logo-text {
  color: var(--color-text);
}

.trl-header__nav {
  display: flex;
  align-items: center;
  gap: 0;
  flex: 1;
  height: 100%;
}

.trl-header__nav-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0 16px;
  height: 56px;
  color: #032d60;
  font-family: "Salesforce Sans", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 14px;
  font-weight: 400;
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.trl-header__nav-link:hover {
  color: #0176d3;
}

.trl-header__nav-link:focus {
  outline: none;
}

.trl-header__nav-link:focus-visible {
  outline: 2px solid #0176d3;
  outline-offset: -2px;
}

/* Active state for context nav */
.trl-header__nav-link--active {
  color: #0176d3;
  border-bottom-color: #0176d3;
  font-weight: 700;
}

[data-theme="dark"] .trl-header__nav-link {
  color: var(--color-text);
}

[data-theme="dark"] .trl-header__nav-link:hover,
[data-theme="dark"] .trl-header__nav-link--active {
  color: var(--color-text-accent);
}

[data-theme="dark"] .trl-header__nav-link--active {
  border-bottom-color: var(--color-text-accent);
}

.trl-header__nav-link svg {
  width: 12px;
  height: 12px;
  opacity: 0.7;
  transition: transform 0.15s ease;
}

/* Dropdown arrow rotation on hover/active */
.trl-header__nav-link:hover svg,
.trl-header__nav-link--active svg {
  opacity: 1;
}

.trl-header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-inline-start: auto;
}

.trl-header__actions:empty {
  display: none;
}

/* ==========================================================================
   Main Layout - Two Column Grid (th-content-wrapper / th-content-container)
   ========================================================================== */

.trl-layout {
  background: var(--tds-color-white);
  min-height: calc(100vh - 112px); /* 56px global + 56px context */
  position: relative;
}

[data-theme="dark"] .trl-layout {
  background: var(--trl-surface);
}

.trl-layout__inner {
  max-width: var(--tds-page-container-width, 1280px);
  margin: 0 auto;
  padding: 0 var(--tds-spacing-8) var(--tds-spacing-8);
  display: flex;
  flex-direction: row;
  gap: 0; /* Override application.css grid gap - original Trailhead uses padding on sidebar */
}

/* Enable container queries */
.trl-preview {
  container-type: inline-size;
}

/* Constrained width layout (inside builder preview) */
@container (max-width: 800px) {
  /* Header responsive - hide navigation at narrow widths */
  .trl-header {
    height: auto;
    min-height: 48px;
  }

  .trl-header__inner {
    padding: 0 12px;
    flex-wrap: wrap;
    justify-content: space-between;
  }

  .trl-header__nav {
    display: none; /* Hide full nav on narrow widths */
  }

  .trl-header__logo {
    margin-inline-end: 0;
  }

  .trl-header__logo-text {
    font-size: 16px;
  }

  .trl-header__actions {
    gap: 8px;
  }

  .trl-header__search {
    min-width: auto;
    padding: 6px 10px;
  }

  .trl-header__search span {
    display: none; /* Hide search text, show only icon */
  }

  .trl-layout__inner {
    flex-direction: column;
    padding: var(--tds-spacing-4);
  }

  .trl-sidebar {
    width: 100% !important;
    min-width: auto !important;
    max-width: none !important;
    padding-inline-end: 0 !important;
    margin-bottom: var(--tds-spacing-4);
  }

  .trl-sidebar__inner {
    position: static;
    padding-top: 0;
  }

  .trl-badge-card,
  .tds-badge-card {
    width: 100%;
    max-width: none;
    /* th-content_aside-tile mobile styling */
    margin-left: -1em;
    margin-right: -1em;
    width: calc(100% + 2em);
    box-shadow: none;
    border-radius: 0;
  }

  .trl-badge-card__top,
  .tds-badge-card__top {
    border-radius: 0;
  }

  .trl-main-content {
    padding: 0 0 var(--tds-spacing-6) 0;
  }

  /* Discover grid responsive */
  .trl-discover__grid {
    flex-direction: column;
  }

  .trl-discover__grid .trl-discover-card {
    flex: 1 1 100%;
  }

  /* Footer responsive */
  .trl-footer {
    padding: 24px 16px;
  }

  .trl-footer__inner {
    max-width: 100%;
  }

  .trl-footer__grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 24px !important;
  }

  .trl-footer__apps {
    flex-direction: column;
    align-items: flex-start;
  }

  .trl-footer__social {
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .trl-footer__legal {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .trl-footer__legal-links {
    flex-wrap: wrap;
    gap: 8px 16px;
  }

  /* Stats bar responsive */
  .trl-stats-bar {
    flex-wrap: wrap;
    border-radius: 12px;
    padding: 0;
    gap: 0;
  }

  .trl-stats-bar__item {
    flex: 1 1 50%;
    min-width: auto;
    padding: 12px;
    justify-content: center;
    border-bottom: 1px solid var(--tds-color-fog, #e5e5e5);
  }

  .trl-stats-bar__item:nth-child(odd) {
    border-inline-end: 1px solid var(--tds-color-fog, #e5e5e5);
  }

  .trl-stats-bar__item:nth-last-child(-n+2) {
    border-bottom: none;
  }

  .trl-stats-bar__divider {
    display: none;
  }

  /* Announcement responsive */
  .trl-announcement {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Even narrower layout (mobile preview) */
@container (max-width: 500px) {
  .trl-footer__grid {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }

  .trl-header__logo-text {
    font-size: 14px;
  }

  .trl-header__search {
    display: none; /* Hide search completely on very narrow */
  }

  .trl-stats-bar__item {
    flex: 1 1 100%;
    border-inline-end: none !important;
  }

  .trl-badge-card__title,
  .tds-badge-card__title {
    font-size: 1.25rem;
  }

  .trl-about-section,
  .trl-discover {
    padding: 24px 16px;
  }
}

@media screen and (max-width: 800px) {
  .trl-layout__inner {
    flex-direction: column;
    padding: 0 var(--tds-spacing-4);
  }

  .trl-sidebar {
    width: 100%;
    min-width: auto;
    max-width: none;
    padding-inline-end: 0;
    margin-bottom: var(--tds-spacing-4);
  }

  .trl-sidebar__inner {
    position: static;
    padding-top: 0;
  }

  .trl-badge-card,
  .tds-badge-card {
    width: 100%;
    max-width: none;
    /* th-content_aside-tile mobile styling */
    margin-left: -1em;
    margin-right: -1em;
    width: calc(100% + 2em);
    box-shadow: none;
    border-radius: 0;
  }

  .trl-badge-card__top,
  .tds-badge-card__top {
    border-radius: 0;
  }

  .trl-main-content {
    padding: 0 0 var(--tds-spacing-6) 0;
  }
}

/* ==========================================================================
   Left Sidebar (th-content-container_aside-container)
   ========================================================================== */

.trl-sidebar {
  min-width: 400px; /* 352px content + 48px padding = 400px total like original Trailhead */
  max-width: 400px;
  padding-inline-end: var(--tds-spacing-12, 48px); /* Original Trailhead uses 48px padding */
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: var(--tds-page-grid-row-gap, 20px);
}

.trl-sidebar__inner {
  position: sticky;
  top: 128px; /* Account for sticky headers (56px + 56px) + padding (16px) */
  padding-top: var(--tds-spacing-6);
  display: flex;
  flex-direction: column;
  gap: var(--tds-page-grid-row-gap, 20px);
}

/* ==========================================================================
   Taxonomy Sections (th-content-filter-tags)
   ========================================================================== */

.trl-taxonomy {
  display: flex;
  flex-direction: column;
  gap: var(--tds-spacing-1);
  margin-top: var(--tds-spacing-4);
}

.trl-taxonomy__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--tds-color-meteorite);
  margin: 0;
  padding-bottom: var(--tds-spacing-1);
}

[data-theme="dark"] .trl-taxonomy__title {
  color: var(--color-text-secondary);
}

.trl-taxonomy__subtitle {
  font-size: 14px;
  color: var(--tds-color-meteorite);
  margin: 0;
  line-height: 1.4;
}

[data-theme="dark"] .trl-taxonomy__subtitle {
  color: var(--color-text-secondary);
}

.trl-taxonomy__subtitle a {
  color: var(--tds-color-ocean);
  text-decoration: underline;
}

[data-theme="dark"] .trl-taxonomy__subtitle a {
  color: var(--color-text-accent);
}

.trl-taxonomy__tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  margin-top: var(--tds-spacing-4);
  gap: 0;
}

/* Tags (skill/product pills) - th-pill_filter style - exact TDS colors */
.trl-tag {
  display: inline-block;
  border-radius: 20px;
  font-weight: 700;
  line-height: 1.5;
  padding: 0.4rem 0.75rem;
  font-size: 0.75rem;
  background: #EEF4FF;
  color: #0B5CAB;
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--tds-duration-short) ease;
  margin-bottom: 10px;
  margin-inline-end: var(--tds-spacing-1);
}

.trl-tag:hover,
.trl-tag:active,
.trl-tag:focus {
  background: #D8E6FE;
  text-decoration: underline;
}

.trl-tag:active,
.trl-tag:focus {
  border: 1px solid #0B5CAB;
}

.trl-tag:focus-visible {
  outline: var(--tds-a11y-outline-focus);
  outline-offset: var(--tds-a11y-outline-offset-focus);
}

[data-theme="dark"] .trl-tag {
  background: var(--trl-pill-bg);
  color: var(--color-text-accent);
}

[data-theme="dark"] .trl-tag:hover,
[data-theme="dark"] .trl-tag:active,
[data-theme="dark"] .trl-tag:focus {
  background: var(--trl-surface-soft);
}

[data-theme="dark"] .trl-tag:active,
[data-theme="dark"] .trl-tag:focus {
  border-color: var(--color-text-accent);
}

.trl-tag--product {
  background: #EEF4FF;
  color: #0B5CAB;
}

[data-theme="dark"] .trl-tag--product {
  background: var(--trl-pill-bg);
  color: var(--color-text-accent);
}

.trl-taxonomy__toggle {
  display: inline-block;
  background: none;
  border: none;
  color: var(--tds-color-ocean);
  font-size: 14px;
  font-weight: var(--tds-font-weight-semibold);
  padding: 0;
  cursor: pointer;
  text-align: start;
  margin-top: var(--tds-spacing-2);
}

.trl-taxonomy__toggle:hover {
  text-decoration: underline;
}

[data-theme="dark"] .trl-taxonomy__toggle {
  color: var(--color-text-accent);
}

/* ==========================================================================
   Locale Disclaimer
   ========================================================================== */

.trl-locale-disclaimer {
  display: flex;
  gap: 8px;
  align-items: baseline;
  background: var(--tds-color-sand);
  color: var(--tds-color-meteorite);
  border-radius: 8px;
  padding: 12px;
  margin-top: 32px;
  font-size: 14px;
  line-height: 20px;
}

[data-theme="dark"] .trl-locale-disclaimer {
  background: var(--trl-surface-soft);
  color: var(--color-text-secondary);
}

.trl-locale-disclaimer__icon {
  color: var(--tds-color-meteorite);
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

[data-theme="dark"] .trl-locale-disclaimer__icon {
  color: var(--color-text-secondary);
}

.trl-locale-disclaimer__icon svg {
  width: 16px;
  height: 16px;
}

.trl-locale-disclaimer__text {
  flex: 1;
}

.trl-locale-disclaimer__link {
  color: var(--tds-color-ocean);
  text-decoration: underline;
  font-weight: var(--tds-font-weight-semibold);
  margin-inline-start: var(--tds-spacing-1);
}

[data-theme="dark"] .trl-locale-disclaimer__link {
  color: var(--color-text-accent);
}

/* ==========================================================================
   Right Main Content (th-content-container_main)
   ========================================================================== */

.trl-main-content {
  display: flex;
  flex-direction: column;
  gap: var(--tds-page-grid-row-gap, 20px);
  padding: var(--tds-spacing-6) 0;
  width: 100%;
  max-width: var(--tds-page-main-max-width, 768px);
  z-index: 1;
}

/* ==========================================================================
   Stats Bar (th-content-stats) - TDS Pixel Perfect
   ========================================================================== */

.trl-stats-bar {
  display: flex;
  align-items: center;
  justify-content: space-evenly;
  flex-wrap: nowrap;
  background: var(--tds-color-sand);
  border-radius: 56px;
  padding: var(--tds-spacing-4) 0;
  margin-bottom: var(--tds-spacing-8);
  font-size: 14px;
  gap: 0;
}

[data-theme="dark"] .trl-stats-bar {
  background: var(--trl-surface-soft);
}

.trl-stats-bar__item {
  display: flex;
  align-items: center;
  font-weight: 700;
  color: var(--tds-color-midnight);
  justify-content: center;
  text-align: center;
  padding: 0 20px;
  white-space: nowrap;
}

[data-theme="dark"] .trl-stats-bar__item {
  color: var(--color-text);
}

.trl-stats-bar__icon {
  width: 16px;
  height: 16px;
  color: var(--tds-color-midnight);
  flex-shrink: 0;
  margin-inline-end: 6px;
}

[data-theme="dark"] .trl-stats-bar__icon {
  color: var(--color-text);
}

.trl-stats-bar__value {
  font-size: 14px;
  font-weight: 700;
  color: var(--tds-color-midnight);
  white-space: nowrap;
}

[data-theme="dark"] .trl-stats-bar__value {
  color: var(--color-text);
}

.trl-stats-bar__divider {
  width: 1px;
  height: 16px;
  background: var(--tds-color-fog);
  flex-shrink: 0;
}

[data-theme="dark"] .trl-stats-bar__divider {
  background: var(--trl-border);
}

/* Stats bar responsive */
@container (max-width: 600px) {
  .trl-stats-bar {
    flex-wrap: wrap;
    border-radius: 12px;
    padding: 0;
  }

  .trl-stats-bar__item {
    padding: var(--tds-spacing-3) var(--tds-spacing-6);
    width: 50%;
  }

  .trl-stats-bar__item:first-child {
    border-bottom: 1px solid var(--tds-color-fog);
    border-inline-end: 1px solid var(--tds-color-fog);
  }

  .trl-stats-bar__item:nth-child(3) {
    border-bottom: 1px solid var(--tds-color-fog);
  }

  .trl-stats-bar__item:nth-child(5) {
    border-inline-end: 1px solid var(--tds-color-fog);
  }

  .trl-stats-bar__divider {
    display: none;
  }

  .trl-stats-bar__icon {
    display: none;
  }
}

/* ==========================================================================
   Announcement Banner (info-banner style)
   ========================================================================== */

.trl-announcement {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  background-color: #032d60;
  background-color: var(--trl-announcement-bg, var(--tds-color-midnight, #032d60));
  color: #ffffff;
  color: var(--trl-announcement-text, var(--tds-color-white, #ffffff));
  padding: 16px 20px;
  border-radius: 16px;
  margin-top: 8px;
  margin-bottom: 40px;
  gap: 16px;
  width: 100%;
  position: relative;
}

[data-theme="dark"] .trl-announcement {
  background: var(--trl-accent-bg);
  color: var(--color-text-inverse);
}

.trl-announcement__content {
  flex: 1;
}

.trl-announcement__content strong {
  font-size: var(--tds-font-size-md);
  font-weight: 600;
  display: block;
  margin-bottom: 16px;
}

.trl-announcement__content p {
  font-size: var(--tds-font-size-md);
  margin: 0;
  line-height: 1.5;
}

.trl-announcement__btn {
  display: inline-flex;
  align-items: center;
  padding: 0;
  background: none;
  border: none;
  color: var(--trl-announcement-link, var(--tds-color-white));
  font-size: var(--tds-font-size-sm);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
  transition: color var(--tds-duration-short) ease;
  align-self: flex-start;
  margin-top: 0;
}

.trl-announcement__btn:hover,
.trl-announcement__btn:visited,
.trl-announcement__btn:active,
.trl-announcement__btn:focus {
  color: var(--trl-announcement-link, var(--tds-color-white));
}

.trl-announcement__btn:hover {
  text-decoration: underline;
}

/* ==========================================================================
   About This Trail Section
   ========================================================================== */

.trl-about-section {
  background: var(--tds-color-white);
  padding: var(--tds-spacing-10) var(--tds-spacing-6) var(--tds-spacing-5);
}

[data-theme="dark"] .trl-about-section {
  background: var(--trl-surface);
}

.trl-about-section__inner {
  max-width: 840px;
  margin: 0 auto;
  width: 100%;
}

.trl-about-section__title {
  font-size: var(--tds-font-size-2xl);
  font-weight: 600;
  color: var(--tds-color-midnight);
  margin: 24px 0;
}

[data-theme="dark"] .trl-about-section__title {
  color: var(--color-text);
}

.trl-about-section__text {
  font-size: var(--tds-font-size-lg);
  color: var(--tds-color-meteorite);
  line-height: 28px;
  margin: 0;
}

[data-theme="dark"] .trl-about-section__text {
  color: var(--color-text-secondary);
}

/* ==========================================================================
   Discover More Section
   ========================================================================== */

.trl-discover {
  background: var(--tds-color-white);
  padding: var(--tds-spacing-5) var(--tds-spacing-6) var(--tds-spacing-10);
}

[data-theme="dark"] .trl-discover {
  background: var(--trl-surface);
}

.trl-discover__inner {
  max-width: 960px;
  margin: 0 auto;
}

.trl-discover__title {
  font-size: var(--tds-font-size-lg);
  font-weight: var(--tds-font-weight-bold);
  color: var(--tds-color-midnight);
  margin: 0 0 var(--tds-spacing-2) 0;
}

[data-theme="dark"] .trl-discover__title {
  color: var(--color-text);
}

.trl-discover__subtitle {
  font-size: var(--tds-font-size-sm);
  color: var(--tds-color-meteorite);
  line-height: 1.6;
  margin: 0 0 var(--tds-spacing-5) 0;
  max-width: 680px;
}

[data-theme="dark"] .trl-discover__subtitle {
  color: var(--color-text-secondary);
}

.trl-discover__grid {
  display: flex;
  flex-wrap: wrap;
  column-gap: var(--tds-spacing-5);
  row-gap: 36px;
  margin-bottom: var(--tds-spacing-5);
}

/* Discover Card */
.trl-discover-card {
  display: flex;
  flex-direction: column;
  flex: 0 0 calc(33.33% - 15px);
  box-sizing: border-box;
  padding: var(--tds-spacing-4);
  background: var(--tds-color-white);
  border: 1px solid transparent;
  border-radius: 8px;
  text-decoration: none;
  text-align: left;
  transition: all var(--tds-duration-short) ease;
}

[data-theme="dark"] .trl-discover-card {
  background: var(--trl-surface);
  border: 1px solid var(--trl-border);
}

.trl-discover-card:hover {
  border-color: var(--tds-color-azure);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.trl-discover-card:hover .trl-discover-card__title {
  text-decoration: underline;
}

[data-theme="dark"] .trl-discover-card:hover {
  border-color: var(--color-text-accent);
}

.trl-discover-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-bottom: var(--tds-spacing-3);
  background: linear-gradient(135deg, rgba(27, 150, 255, 0.15) 0%, rgba(1, 118, 211, 0.1) 100%);
}

[data-theme="dark"] .trl-discover-card__icon {
  background: var(--trl-surface-soft);
}

.trl-discover-card__icon svg,
.trl-discover-card__icon img {
  width: 24px;
  height: 24px;
  color: var(--tds-color-ocean);
}

[data-theme="dark"] .trl-discover-card__icon svg {
  color: var(--color-text-accent);
}

/* Purple icon variant */
.trl-discover-card__icon--purple {
  background: linear-gradient(135deg, rgba(147, 51, 234, 0.15) 0%, rgba(126, 34, 206, 0.1) 100%);
}

[data-theme="dark"] .trl-discover-card__icon--purple {
  background: rgba(147, 51, 234, 0.15);
}

.trl-discover-card__icon--purple svg {
  color: #9333ea;
}

/* Green icon variant */
.trl-discover-card__icon--green {
  background: linear-gradient(135deg, rgba(46, 132, 74, 0.15) 0%, rgba(34, 116, 60, 0.1) 100%);
}

[data-theme="dark"] .trl-discover-card__icon--green {
  background: rgba(46, 132, 74, 0.15);
}

.trl-discover-card__icon--green svg {
  color: var(--tds-color-evergreen);
}

/* Orange icon variant */
.trl-discover-card__icon--orange {
  background: linear-gradient(135deg, rgba(234, 88, 12, 0.15) 0%, rgba(194, 65, 12, 0.1) 100%);
}

[data-theme="dark"] .trl-discover-card__icon--orange {
  background: rgba(234, 88, 12, 0.15);
}

.trl-discover-card__icon--orange svg {
  color: #ea580c;
}

.trl-discover-card__title {
  font-size: var(--tds-font-size-lg);
  font-weight: var(--tds-font-weight-bold);
  color: var(--tds-color-ocean);
  margin: 0;
}

[data-theme="dark"] .trl-discover-card__title {
  color: var(--color-text-accent);
}

.trl-discover-card__desc {
  font-size: var(--tds-font-size-md);
  color: var(--tds-color-meteorite);
  line-height: 1.5;
  margin-top: var(--tds-spacing-2);
}

[data-theme="dark"] .trl-discover-card__desc {
  color: var(--color-text-secondary);
}

.trl-discover__more {
  display: block;
  margin: 0 auto;
  background: none;
  border: none;
  color: var(--tds-color-ocean);
  font-size: var(--tds-font-size-xs);
  font-weight: var(--tds-font-weight-semibold);
  cursor: pointer;
}

[data-theme="dark"] .trl-discover__more {
  color: var(--color-text-accent);
}

.trl-discover__more:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Landscape Illustration
   ========================================================================== */

.trl-landscape {
  width: 100%;
  height: 160px;
  overflow: hidden;
  margin-top: -10px;
}

.trl-landscape__svg {
  width: 100%;
  height: 100%;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.trl-footer {
  background: var(--tds-color-white);
  padding: 40px 24px 24px;
  border-top: 1px solid #e5e5e5;
}

[data-theme="dark"] .trl-footer {
  background: var(--trl-surface);
  border-color: var(--trl-border);
}

.trl-footer__inner {
  max-width: 1200px;
  margin: 0 auto;
}

.trl-footer__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 48px;
  margin-bottom: 40px;
}

.trl-footer__section {
  display: flex;
  flex-direction: column;
  gap: var(--tds-spacing-4);
}

.trl-footer__heading {
  font-size: var(--tds-font-size-xs);
  font-weight: var(--tds-font-weight-bold);
  color: var(--tds-color-midnight);
  margin: 0;
}

[data-theme="dark"] .trl-footer__heading {
  color: var(--color-text);
}

.trl-footer__links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--tds-spacing-3);
}

.trl-footer__links a {
  font-size: var(--tds-font-size-xs);
  color: var(--tds-color-meteorite);
  text-decoration: none;
  transition: color var(--tds-duration-short) ease;
}

[data-theme="dark"] .trl-footer__links a {
  color: var(--color-text-secondary);
}

.trl-footer__links a:hover {
  color: var(--tds-color-ocean);
  text-decoration: underline;
}

[data-theme="dark"] .trl-footer__links a:hover {
  color: var(--color-text-accent);
}

/* Footer Apps */
.trl-footer__apps {
  display: flex;
  align-items: center;
  gap: var(--tds-spacing-4);
  padding-bottom: var(--tds-spacing-6);
  border-bottom: 1px solid var(--tds-color-fog);
  margin-bottom: var(--tds-spacing-6);
}

[data-theme="dark"] .trl-footer__apps {
  border-color: var(--trl-border);
}

.trl-footer__apps-label {
  font-size: var(--tds-font-size-xs);
  font-weight: var(--tds-font-weight-semibold);
  color: var(--tds-color-midnight);
}

[data-theme="dark"] .trl-footer__apps-label {
  color: var(--color-text);
}

.trl-footer__apps-btns {
  display: flex;
  gap: var(--tds-spacing-3);
}

.trl-footer__app-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--tds-spacing-2);
  padding: var(--tds-spacing-2) var(--tds-spacing-4);
  background: var(--tds-color-black);
  color: var(--tds-color-white);
  border-radius: var(--tds-radius-md);
  text-decoration: none;
  font-size: var(--tds-font-size-xs);
  font-weight: var(--tds-font-weight-semibold);
  transition: background var(--tds-duration-short) ease;
}

.trl-footer__app-btn svg {
  width: 20px;
  height: 20px;
}

.trl-footer__app-btn:hover {
  background: var(--gray-700);
}

/* Social Links */
.trl-footer__social {
  display: flex;
  gap: var(--tds-spacing-3);
  justify-content: flex-end;
  padding-bottom: var(--tds-spacing-6);
  border-bottom: 1px solid var(--tds-color-fog);
  margin-bottom: var(--tds-spacing-6);
}

[data-theme="dark"] .trl-footer__social {
  border-color: var(--trl-border);
}

.trl-footer__social-link {
  width: 40px;
  height: 40px;
  background: var(--tds-color-ocean);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--tds-color-white);
  text-decoration: none;
  transition: background var(--tds-duration-short) ease, transform var(--tds-duration-short) ease;
}

/* Brand-specific social icon colors */
.trl-footer__social-link[aria-label*="Facebook"] {
  background: #1877F2;
}

.trl-footer__social-link[aria-label*="Twitter"] {
  background: #000000;
}

.trl-footer__social-link[aria-label*="LinkedIn"] {
  background: #0A66C2;
}

.trl-footer__social-link[aria-label*="Trailblazer"] {
  background: #00A1E0;
}

.trl-footer__social-link[aria-label*="Podcast"] {
  background: #FF6D3D;
}

.trl-footer__social-link:hover {
  background: var(--tds-color-azure);
}

.trl-footer__social-link svg {
  width: 20px;
  height: 20px;
}

/* Legal Section */
.trl-footer__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--tds-spacing-4);
  font-size: var(--tds-font-size-xs);
  color: var(--tds-color-meteorite);
}

[data-theme="dark"] .trl-footer__legal {
  color: var(--color-text-secondary);
}

.trl-footer__copyright {
  color: var(--tds-color-meteorite);
}

[data-theme="dark"] .trl-footer__copyright {
  color: var(--color-text-secondary);
}

.trl-footer__legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--tds-spacing-4);
}

.trl-footer__legal-links a {
  color: var(--tds-color-meteorite);
  text-decoration: none;
  transition: color var(--tds-duration-short) ease;
}

[data-theme="dark"] .trl-footer__legal-links a {
  color: var(--color-text-secondary);
}

.trl-footer__legal-links a:hover {
  text-decoration: underline;
}

.trl-footer__lang {
  display: flex;
  align-items: center;
  gap: var(--tds-spacing-1);
  color: var(--tds-color-meteorite);
  cursor: pointer;
}

[data-theme="dark"] .trl-footer__lang {
  color: var(--color-text-secondary);
}

.trl-footer__lang svg {
  width: 16px;
  height: 16px;
}

.trl-footer__lang-link {
  color: var(--tds-color-meteorite);
  text-decoration: none;
  font-size: var(--tds-font-size-sm);
}

[data-theme="dark"] .trl-footer__lang-link {
  color: var(--color-text-secondary);
}

.trl-footer__lang-link:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Icon Sizes
   ========================================================================== */

.trl-icon--xx-small {
  width: 12px;
  height: 12px;
}

.trl-icon--x-small {
  width: 14px;
  height: 14px;
}

.trl-icon--small {
  width: 16px;
  height: 16px;
}

.trl-icon--medium {
  width: 20px;
  height: 20px;
}

.trl-icon--large {
  width: 24px;
  height: 24px;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 800px) {
  .trl-layout__inner {
    flex-direction: column;
  }

  .trl-sidebar {
    position: static;
    order: -1;
    min-width: auto;
    max-width: none;
    padding-inline-end: 0;
    margin-bottom: var(--tds-spacing-4);
  }

  .trl-sidebar__inner {
    position: static;
    padding-top: 0;
  }

  .trl-badge-card {
    width: 100%;
    max-width: none;
  }

  /* Hide navigation on tablets/mobile - show hamburger instead */
  .sf-global-header__nav {
    display: none;
  }

  .trl-header__nav {
    display: none;
  }

  .sf-global-header__search {
    min-width: auto;
    padding: 8px 12px;
  }

  .sf-global-header__search span {
    display: none;
  }

  /* Stack Trailhead header below global when nav hidden */
  .trl-header {
    top: 56px;
  }

  .trl-discover__grid .trl-discover-card {
    flex: 0 0 calc(50% - 10px);
  }

  .trl-footer__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--tds-spacing-8);
  }
}

@media (max-width: 48rem) {
  .trl-layout__inner {
    padding: 0 var(--tds-spacing-4);
  }

  .trl-badge-card__top {
    padding: var(--tds-spacing-6);
  }

  .trl-badge-card__badge {
    width: 100px;
    height: 100px;
  }

  .trl-badge-card__title {
    font-size: var(--tds-font-size-lg);
  }

  .trl-announcement {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--tds-spacing-4);
  }

  .trl-discover__grid {
    flex-direction: column;
    row-gap: var(--tds-spacing-2);
  }

  .trl-discover__grid .trl-discover-card {
    flex: 1 1 100%;
  }

  .trl-footer__grid {
    grid-template-columns: 1fr;
    gap: var(--tds-spacing-6);
  }

  .trl-footer__apps {
    flex-direction: column;
    align-items: flex-start;
  }

  .trl-footer__social {
    justify-content: flex-start;
  }

  .trl-footer__legal {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 30rem) {
  .sf-global-header__inner,
  .trl-header__inner {
    padding: 0 16px;
  }

  .sf-global-header {
    height: 48px;
  }

  .trl-header {
    height: 48px;
    top: 48px;
  }

  .sf-global-header__logo-icon {
    width: 28px;
    height: 28px;
  }

  .sf-global-header__nav-link,
  .trl-header__nav-link {
    height: 48px;
  }

  .trl-theme-toggle {
    height: 28px;
  }

  .trl-theme-toggle__btn {
    padding: 2px 8px;
    font-size: 11px;
  }

  /* Keep buttons side-by-side on mobile like original Trailhead */
  .trl-btn {
    width: 100%;
  }

}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
  .sf-global-header,
  .trl-header,
  .trl-footer,
  .trl-announcement,
  .trl-discover,
  .trl-landscape,
  .trl-theme-toggle {
    display: none;
  }

  .trl-layout {
    background: white;
  }

  .trl-layout__inner {
    display: block;
  }

  .trl-sidebar {
    position: static;
  }
}

/* ==========================================================================
   Reduced Motion - WCAG 2.1 AA Compliance
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .trl-discover-card,
  .trl-btn,
  .trl-footer__social-link {
    transition: none !important;
  }
}