/* ============================================================
   AWS Skill Builder Design System
   ============================================================ */
@font-face {
  font-family: "Amazon Ember";
  src: url("../fonts/AmazonEmber_W_Lt.woff2") format("woff2");
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Amazon Ember";
  src: url("../fonts/AmazonEmber_W_Rg.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Amazon Ember";
  src: url("../fonts/AmazonEmber_W_Bd.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Amazon Ember";
  src: url("../fonts/AmazonEmber_W_He.woff2") format("woff2");
  font-weight: 800;
  font-style: normal;
  font-display: swap;
}

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

:root {
  --md-text-font: "Amazon Ember", Helvetica, sans-serif;
  --md-code-font: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --asb-dark: #16191f;
  --asb-text: #16191f;
  --asb-blue: #0073bb;
  --asb-orange: #ff9900;
  --asb-orange-hover: #e88b00;
  --asb-purple: #4b3bb3;
  --asb-teal: #245869;
  --asb-border: #d1d5db;
  --asb-border-light: #e5e7eb;
  --asb-gray: #6b7280;
  --asb-gray-light: #9ca3af;
  --asb-bg-sidebar: #ffffff;
  --asb-bg-callout: #eef2f6;
  --asb-bg-page: #fafafa;

  --md-primary-fg-color: #1c222b;
  --md-primary-bg-color: #ffffff;
  --md-accent-fg-color: #0073bb;
  --md-accent-bg-color: #0073bb10;
  --md-default-bg-color: #fafafa;

  -webkit-text-size-adjust: 100%;
  tab-size: 4;
  -webkit-tap-highlight-color: transparent;
  scroll-padding-top: 57px;
}

[data-md-color-scheme="slate"] {
  --asb-dark: #e5e7eb;
  --asb-text: #d1d5db;
  --asb-gray: #9ca3af;
  --asb-gray-light: #6b7280;
  --asb-bg-sidebar: #2e303e;
  --asb-bg-callout: #363846;
  --asb-bg-page: var(--md-default-bg-color);
  --asb-border: #374151;
  --asb-border-light: #1f2937;
  --md-primary-fg-color: #1c222b;
  --md-accent-fg-color: #0073bb;
  --md-default-bg-color: #2e303e;
}

[data-md-color-scheme="slate"] .asb-resume-card,
[data-md-color-scheme="slate"] .asb-module-panel,
[data-md-color-scheme="slate"] .workshop-progress {
  background: #363846;
  border-color: #444759;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

[data-md-color-scheme="slate"] .progress-steps .step {
  background: #363846;
}

[data-md-color-scheme="slate"] .asb-btn-secondary {
  background: transparent;
  border-color: #5b9fd6;
  color: #5b9fd6;
}

[data-md-color-scheme="slate"] .asb-timeline-item.is-active .asb-timeline-dot {
  background: #363846;
}

/* ============================================================
   Header — dark nav bar + orange return pill
   ============================================================ */
.md-header {
  background-color: #1c222b;
  border-bottom: 1px solid #374151;
}

.md-tabs {
  background-color: #1c222b;
}

.asb-logo {
  display: flex !important;
  align-items: center;
  gap: 0.35rem;
  width: auto !important;
  margin-right: 0.5rem;
}

.asb-logo-text {
  display: none;
}

.asb-return-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--asb-orange);
  color: #000000;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.375rem 1rem;
  border-radius: 999px;
  text-decoration: none;
  white-space: nowrap;
  margin-right: auto;
  transition: background 0.15s;
  order: 1;
}

.asb-return-btn:hover {
  background: var(--asb-orange-hover);
  color: #000000;
}

.asb-return-icon {
  font-size: 0.95rem;
}

.asb-home .md-tabs {
  display: none;
}

.asb-home #workshop-progress-bar {
  display: none !important;
}

/* ============================================================
   Sidebar — teal header + white list (lesson view)
   ============================================================ */
.md-nav--primary > .md-nav__title {
  display: none;
}

@media screen and (min-width: 76.25em) {
  .md-sidebar--primary {
    display: block !important;
  }

  .md-nav--primary > .md-nav {
    display: block !important;
  }

  .md-nav--primary .md-nav__item {
    display: block !important;
  }
}

/* sidebar title ::after — defined in the progress bar section below */

.md-sidebar--primary .md-sidebar__inner {
  background: var(--asb-bg-sidebar);
  border-right: 1px solid var(--asb-border);
}

.md-nav--primary .md-nav__item--nested > .md-nav__link {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--asb-gray-light);
  padding: 0.5rem 1.25rem;
}

.md-nav--primary .md-nav__link {
  position: relative;
  padding: 0.6rem 0.75rem 0.6rem 1.75rem;
  font-size: 0.78rem;
  color: var(--asb-gray);
  transition: background 0.1s;
}

.md-nav--primary .md-nav__link:hover {
  background: var(--asb-border);
}

.md-nav--primary .md-nav__link::before {
  content: "≡";
  position: absolute;
  left: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--asb-gray-light);
  font-size: 0.95rem;
  font-weight: 700;
}

.md-nav--primary .md-nav__link--active {
  font-weight: 600;
  color: var(--asb-dark);
  background: rgba(75, 59, 179, 0.04);
  border-left: 2px solid var(--asb-purple);
}

.md-nav--primary .md-nav__link--active::after {
  display: none;
}

.md-nav__link.module-done::before {
  content: "≡";
  color: var(--asb-blue);
}

.md-nav__link.module-done::after {
  display: none;
}

/* ============================================================
   Content typography — matching reference
   ============================================================ */
.md-typeset {
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--asb-text);
}

.md-typeset h1 {
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--asb-dark);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.md-typeset h2 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--asb-dark);
  letter-spacing: -0.01em;
  margin-top: 2rem;
}

.md-typeset h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--asb-dark);
}

/* ============================================================
   Module content — purple title accent + callout boxes
   ============================================================ */
.md-content__inner > h1:first-child {
  position: relative;
  padding-bottom: 1rem;
  margin-bottom: 0.75rem;
  border: none;
}

.md-content__inner > h1:first-child::after {
  content: "";
  display: block;
  width: 8rem;
  height: 4px;
  background: var(--asb-purple);
  margin-top: 1.5rem;
}

.md-content__inner > h1:first-child::before {
  content: "";
  display: block;
  position: absolute;
  bottom: -1.5rem;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--asb-border);
}

.md-content__inner {
  padding: 2rem 1.5rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.md-content {
  background: var(--asb-bg-page);
}

.md-typeset .admonition,
.md-typeset details {
  border-radius: 0;
  border-left: 4px solid var(--asb-blue);
  background: var(--asb-bg-callout);
  box-shadow: none;
  font-size: 0.78rem;
}

.md-typeset .admonition.warning,
.md-typeset details.warning {
  border-left-color: var(--asb-orange);
}

.md-typeset .admonition.warning > .admonition-title,
.md-typeset details.warning > summary {
  background: rgba(255, 153, 0, 0.08);
}

/* ============================================================
   Course Overview Page (Home)
   ============================================================ */
.asb-course-page {
  max-width: 960px;
  margin: 0 auto;
}

.asb-course-header {
  margin-bottom: 1.5rem;
}

.asb-course-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--asb-dark);
  line-height: 1.3;
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

.asb-course-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  color: var(--asb-gray);
}

.asb-meta-sep {
  color: var(--asb-gray-light);
  margin: 0 0.15rem;
}

.asb-meta-star {
  color: var(--asb-orange);
}

/* Resume Card */
.asb-resume-card {
  display: flex;
  align-items: center;
  gap: 2rem;
  border: 1px solid var(--asb-border);
  border-radius: 12px;
  padding: 1.5rem 2rem;
  margin-bottom: 1.5rem;
  background: var(--md-primary-bg-color);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
  transition: box-shadow 0.2s;
}

.asb-resume-card:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.asb-resume-illustration {
  flex-shrink: 0;
  width: 160px;
}

.asb-resume-illustration img {
  width: 100%;
  height: auto;
}

.asb-resume-heading {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--asb-dark);
  margin: 0 0 0.25rem;
}

.asb-resume-module {
  font-size: 0.8rem;
  color: var(--asb-gray);
  margin: 0 0 1rem;
}

/* Buttons */
.asb-btn {
  display: inline-block;
  padding: 0.45rem 1.25rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s;
  border: 2px solid transparent;
}

.asb-btn-secondary {
  background: var(--md-primary-bg-color);
  color: var(--asb-blue);
  border-color: var(--asb-blue);
}

.asb-btn-secondary:hover {
  background: rgba(0, 115, 187, 0.1);
  color: var(--asb-blue);
}

.asb-btn-primary {
  background: var(--asb-orange);
  color: #000000;
  border-color: var(--asb-orange);
  font-weight: 700;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.asb-btn-primary:hover {
  background: var(--asb-orange-hover);
  border-color: var(--asb-orange-hover);
  color: #000000;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

/* Tabs */
.asb-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--asb-border);
  margin-bottom: 1.5rem;
}

.asb-tab {
  background: none;
  border: none;
  padding: 0.75rem 1.25rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--asb-gray);
  cursor: pointer;
  position: relative;
  font-family: inherit;
  transition: color 0.15s;
}

.asb-tab:hover {
  color: var(--asb-dark);
}

.asb-tab-active {
  color: var(--asb-blue);
}

.asb-tab-active:hover {
  color: var(--asb-blue);
}

.asb-tab-active::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--asb-blue);
  border-radius: 2px 2px 0 0;
}

.asb-hidden {
  display: none !important;
}

/* Overview two-column layout */
.asb-overview-layout {
  display: grid;
  grid-template-columns: min(280px, 30%) 1fr;
  gap: 2rem;
  align-items: start;
}

/* Timeline stepper */
.asb-timeline {
  position: relative;
  padding-left: 0;
}

.asb-timeline-item {
  position: relative;
  padding: 0 0 1.5rem 1.75rem;
  cursor: pointer;
  border: none;
  background: none;
  text-align: left;
  width: 100%;
  font-family: inherit;
  border-radius: 6px;
  transition: background 0.15s;
}

.asb-timeline-item:hover {
  background: rgba(0, 115, 187, 0.04);
}

.asb-timeline-item:last-child {
  padding-bottom: 0;
}

.asb-timeline-item::before {
  content: "";
  position: absolute;
  left: 0.45rem;
  top: 1.25rem;
  bottom: 0;
  width: 2px;
  background: var(--asb-border);
}

.asb-timeline-item:last-child::before {
  display: none;
}

.asb-timeline-dot {
  position: absolute;
  left: 0;
  top: 0.15rem;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: var(--asb-gray-light);
  border: 2px solid var(--asb-gray-light);
}

.asb-timeline-item.is-active .asb-timeline-dot {
  background: #ffffff;
  border-color: var(--asb-blue);
  box-shadow: inset 0 0 0 3px var(--asb-blue);
}

.asb-timeline-item.is-completed .asb-timeline-dot {
  background: var(--asb-blue);
  border-color: var(--asb-blue);
}

.asb-timeline-status {
  display: block;
  font-size: 0.72rem;
  color: var(--asb-gray-light);
  margin-bottom: 0.15rem;
}

.asb-timeline-item.is-active .asb-timeline-status {
  color: var(--asb-blue);
}

.asb-timeline-title {
  display: block;
  font-size: 0.8rem;
  color: var(--asb-dark);
  line-height: 1.4;
}

.asb-timeline-item.is-active .asb-timeline-title {
  color: var(--asb-blue);
  font-weight: 700;
}

/* Module detail panel */
.asb-module-panel {
  border: 1px solid var(--asb-border);
  border-radius: 12px;
  padding: 1.5rem 1.75rem;
  background: var(--md-primary-bg-color);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

.asb-panel-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--asb-dark);
  margin: 0 0 1rem;
}

.asb-panel-sections {
  margin-top: 1.25rem;
  border-top: 1px solid var(--asb-border);
}

.asb-panel-section {
  padding: 0.85rem 0.5rem;
  border-bottom: 1px solid var(--asb-border);
  border-radius: 4px;
  transition: background 0.15s;
}

.asb-panel-section:hover {
  background: rgba(0, 115, 187, 0.03);
}

.asb-panel-section:last-child {
  border-bottom: none;
}

.asb-panel-section-title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--asb-dark);
  margin: 0;
}

.asb-panel-section-sub {
  font-size: 0.72rem;
  color: var(--asb-gray);
  margin: 0.15rem 0 0;
}

.asb-section-title {
  font-size: 0.85rem;
  font-weight: 700;
  margin: 1.5rem 0 0.75rem;
}

.asb-callout {
  padding: 2rem 2.5rem;
  border-radius: 0;
  border-left: none;
  background: var(--asb-bg-callout);
  font-size: 0.78rem;
  line-height: 1.7;
  margin-top: 2rem;
}

/* Architecture */
.architecture-diagram {
  text-align: center;
  margin: 1rem 0;
}

.architecture-diagram img {
  max-width: 100%;
  border-radius: 8px;
  border: 1px solid var(--asb-border);
}

.asb-arch-desc {
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--asb-text);
  margin: 1rem 0 0.5rem;
}

.asb-arch-desc ol {
  margin: 0.5rem 0;
  padding-left: 1.3rem;
}

.asb-arch-desc ol li {
  margin: 0.4rem 0;
}

.asb-section-sub {
  font-size: 0.76rem;
  line-height: 1.6;
  color: var(--asb-gray);
  margin: -0.35rem 0 0.85rem;
}

/* ============================================================
   Progress bar (module pages)
   ============================================================ */
.workshop-progress {
  background: var(--md-primary-bg-color);
  border: 1px solid var(--asb-border);
  border-radius: 10px;
  padding: 1rem 1.2rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
}

.progress-label {
  font-weight: 700;
}

.progress-count {
  color: var(--asb-gray);
  font-variant-numeric: tabular-nums;
}

.progress-track {
  height: 6px;
  background: var(--asb-border);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 0.75rem;
}

.progress-fill {
  height: 100%;
  background: var(--asb-blue);
  border-radius: 3px;
  transition: width 0.4s ease;
}

.progress-steps {
  display: flex;
  justify-content: space-between;
  gap: 0.25rem;
}

.progress-steps .step {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  border: 2px solid var(--asb-border);
  color: var(--asb-gray);
  text-decoration: none;
  transition: all 0.2s ease;
  background: var(--md-primary-bg-color);
}

.progress-steps .step:hover {
  border-color: var(--asb-blue);
  color: var(--asb-blue);
}

.progress-steps .step.completed {
  background: var(--asb-blue);
  border-color: var(--asb-blue);
  color: #ffffff;
}

/* Module complete button */
.module-complete-section {
  text-align: center;
  padding: 1.5rem 0 0.5rem;
}

.module-complete-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border: 2px solid var(--asb-blue);
  border-radius: 8px;
  background: transparent;
  color: var(--asb-blue);
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.module-complete-btn:hover {
  background: var(--asb-blue);
  color: #ffffff;
}

.module-complete-btn.is-completed {
  background: var(--asb-blue);
  color: #ffffff;
  border-color: var(--asb-blue);
}

/* Tables — covers both markdown-generated and raw HTML <table> elements */
.md-typeset table:not([class]) th,
.md-typeset table th {
  background-color: #1c222b;
  color: #ffffff;
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) th,
[data-md-color-scheme="slate"] .md-typeset table th {
  background-color: #374151;
}

.md-typeset table:not([class]),
.md-typeset table {
  font-size: 0.78rem;
  border-collapse: collapse;
  width: 100%;
  border: 1px solid var(--asb-border);
  border-radius: 6px;
  overflow: hidden;
  margin: 1rem 0;
}

.md-typeset table:not([class]) th,
.md-typeset table:not([class]) td,
.md-typeset table th,
.md-typeset table td {
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--asb-border);
  vertical-align: top;
  text-align: left;
}

.md-typeset table:not([class]) tbody tr:nth-child(even),
.md-typeset table tbody tr:nth-child(even) {
  background-color: #f9fafb;
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) tbody tr:nth-child(even),
[data-md-color-scheme="slate"] .md-typeset table tbody tr:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.04);
}

.md-typeset table:not([class]) tbody tr:hover,
.md-typeset table tbody tr:hover {
  background-color: rgba(0, 115, 187, 0.04);
}

.service-icon {
  width: 28px;
  height: 28px;
  vertical-align: middle;
  margin-right: 0.4rem;
  border-radius: 4px;
  display: inline-block;
}

.md-typeset code {
  border-radius: 4px;
}

.md-footer {
  background-color: #1c222b;
}

/* Home page: widen inner to let .asb-course-page control layout */
.asb-home .md-content__inner {
  max-width: 960px;
}

/* Home page: hide default h1 */
.asb-home .md-content__inner > h1:first-child {
  display: none;
}

.asb-home .md-content__inner > h1:first-child::after,
.asb-home .md-content__inner > h1:first-child::before {
  display: none;
}

/* Responsive */
@media screen and (max-width: 768px) {
  .asb-overview-layout {
    grid-template-columns: 1fr;
  }

  .asb-resume-card {
    flex-direction: column;
    text-align: center;
    padding: 1.25rem;
  }

  .asb-course-title {
    font-size: 1.35rem;
  }

  .asb-return-btn {
    font-size: 0.72rem;
    padding: 0.3rem 0.75rem;
  }

  .md-typeset h1 {
    font-size: 1.75rem;
  }
}

@media screen and (max-width: 600px) {
  .asb-course-meta {
    font-size: 0.78rem;
  }
}

/* ============================================================
   Warning callout — orange left accent
   ============================================================ */
.asb-callout-warning {
  border-left: 4px solid var(--asb-orange);
  padding-left: calc(2.5rem - 4px);
}