:root {
  --atlas-ink: #223936;
  --atlas-ink-soft: #425b56;
  --atlas-paper: #f4fffb;
  --atlas-paper-deep: #e4f7f0;
  --atlas-surface: #ffffff;
  --atlas-surface-warm: #fffdf7;
  --atlas-sidebar: #e8faf3;
  --atlas-teal: #2f9e8f;
  --atlas-teal-soft: #d7f3ec;
  --atlas-violet: #7467d6;
  --atlas-violet-soft: #eeeafd;
  --atlas-amber: #c28f3b;
  --atlas-border: #b8d8d0;
  --atlas-muted: #60746f;
  --atlas-focus: #217f74;
  --atlas-shadow: 0 14px 34px rgba(34, 57, 54, 0.09);
  --atlas-shadow-tight: 0 8px 18px rgba(34, 57, 54, 0.07);
  --atlas-radius: 8px;
  --atlas-content-max: 920px;
  --atlas-article-max: 760px;
  --atlas-sidebar-width: 304px;
  --atlas-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --atlas-serif: Georgia, "Times New Roman", serif;
  --atlas-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

html {
  background: var(--atlas-paper);
  color-scheme: light;
}

body,
button,
input,
select,
textarea {
  font-family: var(--atlas-sans) !important;
  letter-spacing: 0 !important;
}

body {
  color: var(--atlas-ink) !important;
  background: linear-gradient(180deg, var(--atlas-paper) 0%, var(--atlas-surface-warm) 58%, var(--atlas-paper-deep) 100%) !important;
  background-attachment: fixed !important;
  image-rendering: auto !important;
}

img,
svg,
canvas {
  image-rendering: auto !important;
}

::placeholder,
option {
  font-family: var(--atlas-sans) !important;
}

::selection {
  background: var(--atlas-teal-soft);
  color: var(--atlas-ink);
}

a {
  color: var(--atlas-teal) !important;
  text-decoration: underline;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--atlas-violet) !important;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--atlas-focus) !important;
  outline-offset: 3px !important;
  box-shadow: 0 0 0 6px rgba(33, 127, 116, 0.18) !important;
}

button,
.button,
.btn,
.tab-button,
.page-btn,
.convert-button {
  min-height: 44px;
}

h1,
h2,
h3,
.post-title,
.section-title,
.blog-title .site-title {
  color: var(--atlas-ink) !important;
  font-family: var(--atlas-serif) !important;
  font-weight: 700 !important;
}

h1 {
  font-size: 2.5rem;
  line-height: 1.12;
  max-width: 18ch;
}

h2 {
  font-size: 1.55rem;
  line-height: 1.22;
}

p,
li,
td,
th {
  color: var(--atlas-ink-soft);
}

.layout-container {
  max-width: none !important;
  min-height: 100vh;
  gap: 0;
}

.content-wrapper {
  width: calc(100% - var(--atlas-sidebar-width)) !important;
  max-width: none !important;
  margin-right: var(--atlas-sidebar-width) !important;
  padding: clamp(1.25rem, 3vw, 3rem) clamp(1rem, 4vw, 4rem) !important;
  background: rgba(255, 253, 247, 0.76);
  border-left: 0;
  min-height: 100vh;
}

.main-content {
  width: min(100%, var(--atlas-content-max));
  max-width: var(--atlas-content-max) !important;
  margin-inline: auto;
}

.skip-link {
  background: var(--atlas-teal) !important;
  color: #ffffff !important;
  border: 2px solid #ffffff;
  border-radius: var(--atlas-radius);
}

aside.sidebar-right,
.sidebar-right {
  width: var(--atlas-sidebar-width) !important;
  background: var(--atlas-sidebar) !important;
  color: var(--atlas-ink) !important;
  border-left: 0 !important;
  border-right: 2px solid var(--atlas-border) !important;
  padding: clamp(1rem, 2vw, 1.5rem) !important;
}

.sidebar-right .profile-pic {
  border: 3px solid var(--atlas-teal-soft);
  background: var(--atlas-paper);
}

.sidebar-right .blog-title {
  border-bottom: 2px solid rgba(47, 158, 143, 0.2);
  padding-bottom: 1rem;
}

.sidebar-right .blog-title .site-title {
  color: var(--atlas-ink) !important;
  font-size: 1.45rem;
  line-height: 1.15;
  margin: 0;
}

.sidebar-right .blog-title .site-title::after {
  content: none !important;
  display: none !important;
}

.sidebar-right .blog-title p,
.sidebar-right h3 {
  color: var(--atlas-ink-soft) !important;
}

.sidebar-right .navigation .nav-links a,
.sidebar-right nav .nav-links a,
.sidebar-right .nav-link {
  min-height: 44px;
  background: rgba(255, 255, 255, 0.62) !important;
  color: var(--atlas-ink) !important;
  border: 1px solid var(--atlas-border) !important;
  border-radius: var(--atlas-radius) !important;
  text-decoration: none !important;
}

aside#site-sidebar.sidebar-right .navigation .nav-links a.nav-link {
  display: flex !important;
  align-items: center;
  background: rgba(255, 255, 255, 0.62) !important;
  color: var(--atlas-ink) !important;
  border-color: var(--atlas-border) !important;
}

.sidebar-right .navigation .nav-links a:hover,
.sidebar-right nav .nav-links a:hover,
.sidebar-right .nav-link:hover {
  background: #ffffff !important;
  color: var(--atlas-teal) !important;
  transform: none !important;
}

aside#site-sidebar.sidebar-right .navigation .nav-links a.nav-link:hover {
  background: #ffffff !important;
  color: var(--atlas-teal) !important;
}

.sidebar-right .navigation .nav-links a.active,
.sidebar-right nav .nav-links a.active,
.sidebar-right .nav-link.active {
  background: var(--atlas-teal-soft) !important;
  color: var(--atlas-ink) !important;
  border-color: var(--atlas-teal) !important;
  box-shadow: 0 6px 16px rgba(47, 158, 143, 0.16) !important;
}

aside#site-sidebar.sidebar-right .navigation .nav-links a.nav-link.active {
  background: var(--atlas-teal-soft) !important;
  color: var(--atlas-ink) !important;
}

.sidebar-search,
.sidebar-category-filter {
  background: rgba(255, 255, 255, 0.62) !important;
  border: 1px solid var(--atlas-border) !important;
  border-radius: var(--atlas-radius) !important;
}

.sidebar-category-filter select,
.search-input,
.form-group input,
.form-group select {
  min-height: 44px;
  color: var(--atlas-ink) !important;
  background: var(--atlas-surface) !important;
  border: 2px solid var(--atlas-border) !important;
  border-radius: var(--atlas-radius) !important;
}

.search-widget {
  padding: 0 !important;
}

.search-form {
  max-width: none !important;
}

.search-input-wrapper {
  display: grid !important;
  grid-template-columns: minmax(0, 1fr) 44px 44px;
  gap: 0.25rem;
  align-items: center;
  padding: 0.25rem;
  background: #ffffff !important;
  border: 1px solid var(--atlas-border);
  border-radius: var(--atlas-radius);
  box-shadow: none !important;
}

.search-input {
  padding: 0.7rem 0.8rem !important;
  border: 0 !important;
  box-shadow: none !important;
}

.search-button,
.clear-button {
  position: static !important;
  transform: none !important;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  width: 44px;
  height: 44px;
  padding: 0 !important;
  border: 1px solid transparent !important;
  border-radius: 8px !important;
  background: var(--atlas-teal-soft) !important;
  color: var(--atlas-ink) !important;
  cursor: pointer;
}

.clear-button {
  visibility: hidden;
  pointer-events: none;
}

.search-input-wrapper.has-query .clear-button {
  visibility: visible;
  pointer-events: auto;
}

.search-button:hover,
.clear-button:hover,
.search-button:focus-visible,
.clear-button:focus-visible {
  background: var(--atlas-teal) !important;
  color: #ffffff !important;
}

.search-button svg,
.search-button path {
  fill: currentColor !important;
}

.search-results {
  position: static !important;
  margin-top: 0.6rem !important;
  background: var(--atlas-surface) !important;
  color: var(--atlas-ink) !important;
  border: 2px solid var(--atlas-border) !important;
  border-radius: var(--atlas-radius) !important;
  box-shadow: var(--atlas-shadow) !important;
}

#search-results.search-results.active {
  visibility: visible !important;
  opacity: 1 !important;
  transform: none !important;
}

.sidebar-search .search-results {
  max-height: 360px;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.chip-list li {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0.25rem 0.7rem;
  border: 1px solid var(--atlas-border);
  border-radius: 999px;
  background: var(--atlas-teal-soft);
  color: var(--atlas-ink);
  font-size: 0.92rem;
}

.search-results-header,
.search-results-footer {
  background: var(--atlas-paper-deep) !important;
  color: var(--atlas-ink-soft) !important;
  border-color: var(--atlas-border) !important;
}

.search-result-item {
  background: var(--atlas-surface-warm) !important;
  border-color: rgba(184, 216, 208, 0.72) !important;
}

.search-result-item:hover {
  background: var(--atlas-teal-soft) !important;
}

.search-result-title a {
  color: var(--atlas-teal) !important;
  font-weight: 700 !important;
}

.search-result-content,
.search-result-meta,
.search-results-count {
  color: var(--atlas-ink-soft) !important;
}

.search-result-meta {
  flex-wrap: wrap;
}

.search-results mark {
  background: var(--atlas-teal-soft) !important;
  color: var(--atlas-ink) !important;
}

.category,
.category-tag,
.category-badge,
.tag,
.tech-tag,
.tech-item,
.achievement-category,
.project-status {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border: 1px solid var(--atlas-border) !important;
  border-radius: 999px !important;
  background: var(--atlas-violet-soft) !important;
  color: var(--atlas-ink) !important;
  font-family: var(--atlas-mono) !important;
  font-size: 0.78rem !important;
  text-transform: none !important;
}

.post-card,
.post-preview,
.series-group,
.achievement-card,
.project-card,
.table-of-contents,
.series-navigation,
.calculator-container {
  background: var(--atlas-surface-warm) !important;
  border: 1px solid var(--atlas-border) !important;
  border-radius: var(--atlas-radius) !important;
  box-shadow: var(--atlas-shadow) !important;
}

.post-card,
.post-preview,
.achievement-card,
.project-card {
  padding: 1.25rem !important;
}

.post-card:hover,
.post-preview:hover,
.achievement-card:hover,
.project-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 42px rgba(34, 57, 54, 0.13) !important;
}

.post-meta,
.project-meta,
.achievement-meta {
  color: var(--atlas-muted) !important;
  font-family: var(--atlas-mono);
}

.post-date-item {
  color: var(--atlas-muted) !important;
}

.post-date-item time {
  color: var(--atlas-ink) !important;
}

.post-origin-note {
  border-left-color: var(--atlas-teal) !important;
  background: var(--atlas-paper-deep) !important;
  color: var(--atlas-ink-soft) !important;
}

.post-content {
  color: var(--atlas-ink) !important;
  font-size: 1.04rem;
}

.post {
  box-sizing: border-box;
  width: 100%;
  max-width: var(--atlas-article-max) !important;
  padding: clamp(1rem, 3vw, 2.5rem) !important;
}

.post-header {
  border-bottom-color: var(--atlas-border) !important;
}

.post-title {
  max-width: 20ch;
}

.post-content p,
.post-content li {
  line-height: 1.78;
}

.post-content h2 {
  border-bottom: 2px solid var(--atlas-border) !important;
  margin-top: 2.4rem;
  padding-bottom: 0.45rem;
}

.post-content blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  background: var(--atlas-paper-deep);
  border-left: 6px solid var(--atlas-teal);
  border-radius: 0 var(--atlas-radius) var(--atlas-radius) 0;
}

.post-content code,
pre,
code {
  font-family: var(--atlas-mono) !important;
}

.post-content img,
.responsive-figure img {
  border: 2px solid var(--atlas-border);
  border-radius: var(--atlas-radius);
  box-shadow: var(--atlas-shadow-tight);
}

.section-title {
  border-bottom: 3px solid var(--atlas-teal) !important;
}

.view-all-link,
.read-more,
.btn-primary,
.page-btn,
.toggle-btn,
.physics-calculator button,
.convert-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--atlas-teal) !important;
  border-radius: var(--atlas-radius) !important;
  background: var(--atlas-teal) !important;
  color: #ffffff !important;
  box-shadow: var(--atlas-shadow-tight);
  text-decoration: none !important;
  font-weight: 700;
}

.view-all-link:hover,
.read-more:hover,
.btn-primary:hover,
.page-btn:hover:not(:disabled),
.toggle-btn:hover,
.physics-calculator button:hover,
.convert-button:hover {
  background: var(--atlas-violet) !important;
  color: #ffffff !important;
}

.page-btn:disabled {
  opacity: 0.52;
  cursor: not-allowed;
  box-shadow: none;
}

.hidden {
  display: none !important;
}

.about-page {
  box-sizing: border-box;
  width: min(100%, var(--atlas-content-max));
  margin: 0 auto;
}

.about-hero {
  padding: clamp(2rem, 5vw, 4.25rem) 0 clamp(1.5rem, 4vw, 3rem);
  border-bottom: 1px solid var(--atlas-border);
}

.about-kicker {
  margin: 0 0 0.7rem;
  color: var(--atlas-teal) !important;
  font-family: var(--atlas-mono);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0 !important;
  text-transform: uppercase;
}

.about-hero h1 {
  max-width: 15ch;
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 4.2rem);
  line-height: 1.05;
}

.about-lede {
  max-width: 46rem;
  margin: 1.25rem 0 0;
  color: var(--atlas-ink-soft) !important;
  font-size: 1.08rem;
  line-height: 1.78;
}

.about-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.about-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.68rem 1rem;
  border: 1px solid var(--atlas-border);
  border-radius: var(--atlas-radius);
  background: rgba(255, 253, 247, 0.82);
  color: var(--atlas-ink) !important;
  box-shadow: var(--atlas-shadow-tight);
  text-decoration: none !important;
  font-weight: 800;
}

.about-action--primary {
  border-color: var(--atlas-teal);
  background: var(--atlas-teal);
  color: #ffffff !important;
}

.about-action:hover {
  border-color: var(--atlas-violet);
  background: var(--atlas-violet-soft);
  color: var(--atlas-ink) !important;
}

.about-action--primary:hover {
  background: var(--atlas-violet);
  color: #ffffff !important;
}

.about-section {
  padding: clamp(1.6rem, 4vw, 3rem) 0;
  border-bottom: 1px solid var(--atlas-border);
}

.about-section h2 {
  max-width: 22ch;
  margin: 0 0 1rem;
}

.about-pillar-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.about-pillar {
  min-width: 0;
  padding: 1.1rem;
  border: 1px solid var(--atlas-border);
  border-radius: var(--atlas-radius);
  background: rgba(255, 253, 247, 0.9);
  box-shadow: var(--atlas-shadow-tight);
}

.about-pillar h3 {
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.35;
}

.about-pillar p,
.about-entry p {
  color: var(--atlas-ink-soft) !important;
  line-height: 1.75;
}

.about-principles {
  display: grid;
  gap: 0.85rem;
  max-width: 48rem;
  padding: 0;
  margin: 1rem 0 0;
  list-style: none;
}

.about-principles li {
  padding: 1rem;
  border-left: 4px solid var(--atlas-teal);
  border-radius: 0 var(--atlas-radius) var(--atlas-radius) 0;
  background: var(--atlas-surface-warm);
  box-shadow: var(--atlas-shadow-tight);
}

.about-principles strong {
  color: var(--atlas-ink);
}

.about-entry {
  border-bottom: 0;
}

.about-link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  padding: 0;
  margin: 1rem 0 0;
  list-style: none;
}

.about-link-list a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--atlas-border);
  border-radius: 999px;
  background: var(--atlas-teal-soft);
  color: var(--atlas-ink) !important;
  text-decoration: none !important;
  font-weight: 700;
}

.about-link-list a:hover {
  background: var(--atlas-violet-soft);
}

body.sidebar-modal-open {
  overflow: hidden;
}

body.sidebar-modal-open::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(34, 57, 54, 0.22);
  backdrop-filter: blur(2px);
}

.tools-container,
.achievements-container,
.projects-container,
.posts-container,
.series-container,
.home-container {
  max-width: 100%;
}

.home-dashboard {
  display: grid;
  gap: 2.5rem;
  padding: 0 !important;
}

.home-brief {
  padding: clamp(2rem, 5vw, 4rem) 0 clamp(1.5rem, 4vw, 3rem);
  border-bottom: 1px solid var(--atlas-border);
}

.home-eyebrow,
.section-kicker,
.track-index {
  margin: 0 0 0.55rem;
  color: var(--atlas-teal) !important;
  font-family: var(--atlas-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0 !important;
  text-transform: uppercase;
}

.home-brief h1 {
  max-width: 11ch;
  margin: 0;
  font-size: clamp(2.35rem, 5vw, 4.7rem);
  line-height: 1.02;
}

.home-lede {
  max-width: 42rem;
  margin: 1.25rem 0 0;
  color: var(--atlas-ink-soft) !important;
  font-size: 1.08rem;
  line-height: 1.75;
}

.home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.home-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.68rem 1rem;
  border: 1px solid var(--atlas-border);
  border-radius: var(--atlas-radius);
  background: rgba(255, 253, 247, 0.82);
  color: var(--atlas-ink) !important;
  text-decoration: none !important;
  font-weight: 800;
  box-shadow: var(--atlas-shadow-tight);
}

.home-action.primary {
  border-color: var(--atlas-teal);
  background: var(--atlas-teal);
  color: #ffffff !important;
}

.home-action:hover {
  border-color: var(--atlas-violet);
  background: var(--atlas-violet-soft);
  color: var(--atlas-ink) !important;
}

.home-action.primary:hover {
  background: var(--atlas-violet);
  color: #ffffff !important;
}

.home-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  max-width: 44rem;
  margin: 2rem 0 0;
}

.metric {
  padding: 0.85rem;
  border-top: 2px solid var(--atlas-teal-soft);
  background: rgba(255, 253, 247, 0.68);
}

.metric dt {
  color: var(--atlas-ink);
  font-family: var(--atlas-serif);
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1;
}

.metric dd {
  margin: 0.35rem 0 0;
  color: var(--atlas-muted);
  font-size: 0.88rem;
}

.home-section {
  display: grid;
  gap: 1rem;
}

.section-heading {
  display: grid;
  gap: 0.15rem;
}

.section-heading h2 {
  margin: 0;
}

.section-heading-inline {
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 1rem;
}

.track-grid,
.featured-list,
.recent-posts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.track-card,
.featured-item {
  min-width: 0;
  padding: 1.15rem;
  border: 1px solid var(--atlas-border);
  border-radius: var(--atlas-radius);
  background: rgba(255, 253, 247, 0.86);
  box-shadow: var(--atlas-shadow-tight);
}

.track-card h3,
.featured-item h3 {
  margin: 0;
  font-size: 1.15rem;
  line-height: 1.3;
}

.track-card p:not(.track-index),
.featured-item p {
  color: var(--atlas-ink-soft) !important;
  line-height: 1.65;
}

.track-card a,
.featured-item a {
  font-weight: 800;
}

.featured-label {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  margin-bottom: 0.75rem;
  padding: 0 0.55rem;
  border: 1px solid var(--atlas-border);
  border-radius: 999px;
  background: var(--atlas-teal-soft);
  color: var(--atlas-ink);
  font-family: var(--atlas-mono);
  font-size: 0.75rem;
  font-weight: 800;
}

.post-card .read-more {
  min-height: auto;
  padding: 0;
  border: 0 !important;
  background: transparent !important;
  color: var(--atlas-teal) !important;
  box-shadow: none !important;
  justify-content: flex-start;
}

.post-card .read-more:hover {
  color: var(--atlas-violet) !important;
}

.tool-card {
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
  padding: 0 !important;
}

.tools-intro {
  max-width: 44rem;
  margin: 0 0 1.25rem;
  color: var(--atlas-ink-soft) !important;
  line-height: 1.7;
}

.tool-directory {
  margin: 1.25rem 0 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--atlas-border);
}

.tool-directory h2 {
  margin: 0 0 1rem;
}

.tool-directory__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.tool-directory__item {
  display: grid;
  gap: 0.35rem;
  min-height: 112px;
  padding: 1rem;
  border: 1px solid var(--atlas-border);
  border-radius: var(--atlas-radius);
  background: rgba(255, 253, 247, 0.9);
  color: var(--atlas-ink) !important;
  text-decoration: none !important;
  box-shadow: var(--atlas-shadow-tight);
}

.tool-directory__item:hover {
  border-color: var(--atlas-violet);
  background: var(--atlas-violet-soft);
  color: var(--atlas-ink) !important;
  transform: translateY(-2px);
}

.tool-directory__item--pending {
  background: var(--atlas-paper-deep);
}

.tool-directory__label {
  color: var(--atlas-ink);
  font-weight: 800;
}

.tool-directory__desc {
  color: var(--atlas-muted);
  line-height: 1.55;
}

.tool-landing {
  max-width: 760px;
}

.tool-landing h1 {
  max-width: 18ch;
}

.tool-landing h2 {
  margin-top: 2.25rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--atlas-border);
}

.tool-landing h3 {
  margin-top: 1.4rem;
  color: var(--atlas-ink) !important;
  font-size: 1.08rem;
}

.tool-landing p,
.tool-landing li {
  line-height: 1.78;
}

.tool-landing__eyebrow {
  margin: 0 0 0.6rem;
  color: var(--atlas-teal) !important;
  font-family: var(--atlas-mono);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.tool-landing__cta-row {
  margin: 1.25rem 0 1.75rem;
}

.tool-landing__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.72rem 1rem;
  border: 1px solid var(--atlas-teal);
  border-radius: var(--atlas-radius);
  background: var(--atlas-teal);
  color: #ffffff !important;
  box-shadow: var(--atlas-shadow-tight);
  text-decoration: none !important;
  font-weight: 800;
}

.tool-landing__cta:hover {
  background: var(--atlas-violet);
  color: #ffffff !important;
}

.tool-landing table {
  width: 100%;
  margin: 1rem 0 1.25rem;
}

.tool-landing pre {
  border: 2px solid var(--atlas-border);
  border-radius: var(--atlas-radius);
  background: var(--atlas-ink);
  color: var(--atlas-paper);
}

.calculator-container {
  width: 100%;
  max-width: 640px !important;
  margin: 1.5rem 0 !important;
  padding: 1.25rem !important;
}

.tab-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: flex-start !important;
}

.tab-button {
  flex: 0 1 auto;
  white-space: nowrap;
  border: 1px solid var(--atlas-border) !important;
  border-radius: var(--atlas-radius) !important;
  background: var(--atlas-paper-deep) !important;
  color: var(--atlas-ink) !important;
  font-weight: 700;
}

.calculator {
  width: 100%;
  max-width: 520px;
  margin: 0 auto;
}

.tab-button.active,
.tab-button[aria-selected="true"] {
  background: var(--atlas-violet) !important;
  color: #ffffff !important;
  box-shadow: var(--atlas-shadow-tight);
}

.calculator-tab {
  margin-top: 1rem;
  padding: 1rem;
  background: var(--atlas-paper) !important;
  border: 1px solid var(--atlas-border);
  border-radius: var(--atlas-radius);
}

.calculator-display {
  min-height: 84px !important;
  background: var(--atlas-ink) !important;
  color: var(--atlas-paper) !important;
  border: 2px solid var(--atlas-border);
  border-radius: var(--atlas-radius);
}

.previous-operand,
.current-operand {
  color: inherit !important;
}

.current-operand {
  font-size: 1.85rem;
  font-family: var(--atlas-mono);
}

.calculator-grid {
  display: grid !important;
  grid-template-columns: repeat(4, minmax(0, 1fr)) !important;
  grid-auto-rows: clamp(52px, 11vw, 68px);
  gap: 0.75rem !important;
}

.calculator-grid button {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.12rem;
  min-height: 0;
  min-width: 0;
  aspect-ratio: auto;
  padding: 0.75rem;
  border: 2px solid var(--atlas-border) !important;
  border-radius: var(--atlas-radius) !important;
  background: var(--atlas-surface) !important;
  color: var(--atlas-ink) !important;
  font-weight: 700;
}

.key-hint {
  display: block;
  font-size: 0.72em;
  line-height: 1;
}

.calculator-grid button.span-two {
  grid-column: span 2;
  aspect-ratio: auto;
}

.calculator-grid button[data-operation],
.calculator-grid button[data-equals] {
  background: var(--atlas-teal-soft) !important;
}

.calculator-grid button[data-action="clear"] {
  background: var(--atlas-violet-soft) !important;
}

.formula,
.result,
.calculator-error {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border: 2px solid var(--atlas-border);
  border-radius: var(--atlas-radius);
  background: var(--atlas-surface);
  color: var(--atlas-ink);
  font-weight: 700;
}

table {
  border: 2px solid var(--atlas-border) !important;
  background: var(--atlas-surface) !important;
}

th {
  background: var(--atlas-paper-deep) !important;
  color: var(--atlas-ink) !important;
}

td,
th {
  border-color: rgba(184, 216, 208, 0.78) !important;
}

mark {
  background: var(--atlas-teal-soft);
  color: var(--atlas-ink);
  padding: 0.06rem 0.16rem;
  border-radius: 3px;
}

.comments-section {
  border-top: 2px solid var(--atlas-border) !important;
}

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
    max-width: none;
  }

  .main-content h1:first-of-type {
    padding-right: 4.5rem;
  }

  .content-wrapper {
    border-left: 0;
    width: 100% !important;
    max-width: none !important;
    margin-right: 0 !important;
    padding: clamp(1rem, 4vw, 1.5rem) !important;
  }

  aside.sidebar-right,
  .sidebar-right {
    width: 100% !important;
    min-width: 0 !important;
    height: auto !important;
    position: static !important;
    overflow: visible !important;
    border-right: 0 !important;
    border-bottom: 2px solid var(--atlas-border) !important;
  }

  html.sidebar-enhanced aside.sidebar-right,
  html.sidebar-enhanced .sidebar-right {
    position: fixed !important;
    top: 0 !important;
    right: 0 !important;
    width: min(88vw, 340px) !important;
    height: 100vh !important;
    overflow-y: auto !important;
    transform: translateX(0);
    z-index: 1000;
  }

  html.sidebar-enhanced .sidebar-right.sidebar-collapsed,
  .sidebar-right.sidebar-collapsed {
    right: -100vw !important;
    transform: none !important;
    visibility: hidden;
    pointer-events: none;
  }

  html.sidebar-enhanced .sidebar-right:not(.sidebar-collapsed) {
    right: 0 !important;
    visibility: visible;
    pointer-events: auto;
  }

  .post-card,
  .post-preview,
  .series-group,
  .achievement-card,
  .project-card,
  .calculator-container {
    box-shadow: var(--atlas-shadow-tight) !important;
  }

  .home-dashboard {
    gap: 2rem;
  }

  .home-brief {
    padding-top: 1.5rem;
  }

  .home-brief h1 {
    max-width: 12ch;
  }

  .home-metrics,
  .track-grid,
  .featured-list,
  .recent-posts,
  .tool-directory__grid,
  .about-pillar-grid {
    grid-template-columns: 1fr;
  }

  .section-heading-inline {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .post-card .post-meta,
  .post-preview .post-meta,
  .post-header .post-meta {
    display: flex !important;
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 0.5rem !important;
  }

  .post-card .category,
  .post-preview .category,
  .post-card .category-badge,
  .post-preview .category-badge {
    max-width: 100%;
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .calculator-grid {
    gap: 0.55rem !important;
  }

  .about-hero h1 {
    max-width: none;
  }
}

@media (max-width: 480px) {
  .home-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .about-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .home-action {
    width: 100%;
  }

  .calculator-container {
    padding: 1rem !important;
  }

  .calculator-tab {
    padding: 0.75rem;
  }

  .tab-button {
    flex: 1 1 100%;
  }

  .calculator-grid {
    grid-auto-rows: 52px;
  }
}

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