/* Owl of Athens — editorial three-column layout */

:root {
  /* Semantic color tokens — light mode */
  --color-bg: #f7f5f0;
  --color-surface: #efebe4;
  --color-text: #292724;
  --color-text-muted: #77736d;
  --color-border: #ddd9d0;
  --color-accent: #587d8c;
  --color-accent-hover: #456b79;
  --color-gold: #a98252;
  --color-surface-hover: #e5e0d8;
  --video-bg: #111111;

  /* Aliases used throughout stylesheet */
  --bg: var(--color-bg);
  --surface: var(--color-surface);
  --surface-alt: var(--color-surface);
  --surface-hover: var(--color-surface-hover);
  --text: var(--color-text);
  --text-muted: var(--color-text-muted);
  --border: var(--color-border);
  --border-hover: var(--color-accent-hover);
  --accent: var(--color-accent);
  --accent-hover: var(--color-accent-hover);
  --accent-olive: var(--color-gold);

  --site-max: 1080px;
  --rail-width: 220px;
  --sidebar-width: 210px;
  --main-max: 600px;
  --font-serif: "Cormorant Garamond", Georgia, serif;
  --font-sans: "Inter", system-ui, sans-serif;
  --space-xs: 0.375rem;
  --space-sm: 0.625rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --transition: 0.2s ease;
}

[data-theme="dark"] {
  --color-bg: #191a18;
  --color-surface: #252623;
  --color-text: #e8e3d9;
  --color-text-muted: #a7a39b;
  --color-border: #353633;
  --color-accent: #86aebb;
  --color-accent-hover: #9fc4cf;
  --color-gold: #c19a67;
  --color-surface-hover: #2e2f2c;
  --video-bg: #0f100e;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

a {
  color: inherit;
  transition: color var(--transition);
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Site grid */
.site {
  display: grid;
  grid-template-columns: var(--rail-width) minmax(0, 1fr) var(--sidebar-width);
  gap: var(--space-xl) 2rem;
  max-width: var(--site-max);
  margin: 0 auto;
  padding: var(--space-xl) 1.5rem 3.5rem;
  align-items: start;
}

.site--wide {
  grid-template-columns: var(--rail-width) minmax(0, 1fr);
}

.site--wide .sidebar {
  display: none;
}

/* Left rail */
.rail {
  position: sticky;
  top: 2rem;
  display: flex;
  flex-direction: column;
  min-height: calc(100vh - 4rem);
}

.rail__home {
  display: block;
  text-decoration: none;
  color: inherit;
  margin-bottom: var(--space-xl);
  transition: opacity var(--transition);
}

.rail__home:hover,
.rail__home:focus-visible {
  opacity: 0.88;
}

.rail__logo-wrap {
  display: block;
  width: 128px;
  height: 128px;
  margin-bottom: 0.875rem;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg);
}

.rail__logo {
  display: block;
  width: 100%;
  height: 100%;
  margin: 0;
  object-fit: contain;
  object-position: center;
}

.rail__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.1875rem;
  font-weight: 600;
  line-height: 1.25;
  color: var(--text);
  letter-spacing: 0.02em;
}

.rail__tagline {
  margin: 0.3rem 0 0;
  font-size: 0.625rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.rail__nav {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.rail__nav--explore {
  gap: 0.0625rem;
}

.rail__nav-label {
  margin: 0 0 var(--space-sm);
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  opacity: 0.85;
}

.rail__link {
  display: block;
  padding: 0.35rem 0;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  border-bottom: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}

.rail__link:hover,
.rail__link:focus-visible {
  color: var(--accent);
}

.rail__link--active {
  color: var(--text);
  border-bottom-color: var(--accent);
}

.rail__link--active:hover,
.rail__link--active:focus-visible {
  color: var(--text);
  border-bottom-color: var(--accent-hover);
}

.rail__link--soft {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  text-transform: none;
  color: var(--text-muted);
  opacity: 0.82;
}

.rail__link--soft:hover,
.rail__link--soft:focus-visible {
  color: var(--accent);
  opacity: 1;
}

.rail__link--muted {
  color: var(--text-muted);
  opacity: 0.55;
  cursor: default;
  pointer-events: none;
}

.rail__divider {
  height: 1px;
  margin: var(--space-lg) 0;
  background: var(--border);
}

.rail__foot {
  margin-top: auto;
  padding-top: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.rail__social {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}

.rail__social:hover,
.rail__social:focus-visible {
  color: var(--accent);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  line-height: 1;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.theme-toggle[aria-pressed="true"] {
  border-color: var(--accent);
  color: var(--accent);
}

/* Main content */
.main {
  min-width: 0;
  max-width: var(--main-max);
}

.main--lesson {
  max-width: none;
  min-width: 0;
}

.page-header {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.page-header--compact {
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
}

.page-header__label {
  margin: 0 0 var(--space-sm);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.page-header__title {
  margin: 0 0 var(--space-sm);
  font-family: var(--font-serif);
  font-size: 1.875rem;
  font-weight: 600;
  line-height: 1.18;
  color: var(--text);
}

.page-header__meta {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

[data-theme="dark"] .page-header__meta {
  color: var(--color-text-muted);
}

.intro {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--border);
}

.intro__text {
  margin: 0;
  max-width: 38em;
  color: var(--text);
  line-height: 1.75;
}

.intro__text + .intro__text {
  margin-top: var(--space-md);
}

.section {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--border);
}

.section:first-child,
.page-header + .section,
.intro + .section {
  border-top: none;
  padding-top: 0;
}

.section__label {
  margin: 0 0 var(--space-md);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.section__heading {
  margin: 0 0 var(--space-sm);
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
}

.section__text {
  margin: 0 0 var(--space-md);
  color: var(--text);
  line-height: 1.75;
}

.section__text:last-child {
  margin-bottom: 0;
}

.section__text em {
  font-style: italic;
  font-family: var(--font-serif);
}

.text-muted {
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.7;
}

.text-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.875rem;
  border-bottom: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}

.text-link:hover,
.text-link:focus-visible {
  color: var(--accent-hover);
  border-bottom-color: var(--accent-hover);
}

/* Lesson card (homepage) */
.lesson-card {
  padding: var(--space-md) 0 0;
}

.lesson-card__title {
  margin: 0 0 var(--space-sm);
  font-family: var(--font-serif);
  font-size: 1.4375rem;
  font-weight: 600;
  line-height: 1.25;
}

.lesson-card__title a {
  color: var(--text);
  text-decoration: none;
  transition: color var(--transition);
}

.lesson-card__title a:hover,
.lesson-card__title a:focus-visible {
  color: var(--accent);
}

.lesson-card__meta {
  margin: 0 0 var(--space-lg);
  font-size: 0.8125rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.lesson-card__video {
  width: 100%;
  max-width: 360px;
  margin-bottom: var(--space-lg);
  padding: 0.625rem;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  overflow: hidden;
}

.lesson-card__video video {
  display: block;
  width: 100%;
  height: auto;
  background: var(--video-bg);
}

.lesson-card__desc {
  margin: 0 0 var(--space-lg);
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text);
}

.lesson-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md) 1.5rem;
}

/* Content feed */
.feed-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.feed-item {
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.feed-item:first-child {
  padding-top: 0;
}

.feed-item:hover {
  background: var(--surface);
  margin-left: -0.5rem;
  margin-right: -0.5rem;
  padding-left: 0.5rem;
  padding-right: 0.5rem;
}

.feed-item__title {
  margin: 0 0 0.25rem;
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  font-weight: 600;
}

.feed-item__title a {
  color: var(--text);
  text-decoration: none;
  transition: color var(--transition);
}

.feed-item__title a:hover,
.feed-item__title a:focus-visible {
  color: var(--accent);
}

.feed-item__desc {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.feed-item__soon {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-muted);
  opacity: 0.75;
}

/* Archive */
.archive-section {
  margin-bottom: var(--space-xl);
}

.archive-section:last-child {
  margin-bottom: 0;
}

.archive-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.archive-entry {
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.archive-entry:first-child {
  padding-top: 0;
}

.archive-entry:hover {
  background: var(--surface);
  margin-left: -0.5rem;
  margin-right: -0.5rem;
  padding-left: 0.5rem;
  padding-right: 0.5rem;
}

.archive-entry__title {
  margin: 0 0 0.25rem;
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.archive-entry__title a {
  color: var(--text);
  text-decoration: none;
  transition: color var(--transition);
}

.archive-entry__title a:hover,
.archive-entry__title a:focus-visible {
  color: var(--accent);
}

.archive-entry__meta {
  margin: 0 0 0.4rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.archive-entry__desc {
  margin: 0 0 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.archive-entry__link {
  font-size: 0.8125rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--accent);
  border-bottom: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}

.archive-entry__link:hover,
.archive-entry__link:focus-visible {
  color: var(--accent-hover);
  border-bottom-color: var(--accent-hover);
}

/* Resources list */
.resource-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.resource-item {
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border);
}

.resource-item:first-child {
  padding-top: 0;
}

.resource-item__label {
  display: block;
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--text);
  text-decoration: none;
  transition: color var(--transition);
}

.resource-item__label:hover,
.resource-item__label:focus-visible {
  color: var(--accent);
}

.resource-item__desc {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Right sidebar */
.sidebar {
  position: sticky;
  top: 2rem;
  min-width: 0;
  font-size: 0.75rem;
}

.sidebar__block {
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.sidebar__block:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.sidebar__block--warm {
  padding-top: var(--space-sm);
  border-bottom-color: var(--border);
}

.sidebar__block--warm .sidebar__text {
  color: var(--text);
  opacity: 0.82;
  line-height: 1.65;
}

.sidebar__block--quiet .sidebar__list a {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.sidebar__block--quiet .sidebar__list a:hover,
.sidebar__block--quiet .sidebar__list a:focus-visible {
  color: var(--accent);
}

.sidebar__heading {
  margin: 0 0 var(--space-sm);
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.sidebar__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sidebar__list li {
  margin-bottom: 0.45rem;
}

.sidebar__list li:last-child {
  margin-bottom: 0;
}

.sidebar__list a {
  color: var(--text);
  text-decoration: none;
  font-size: 0.8125rem;
  transition: color var(--transition);
}

.sidebar__list a:hover,
.sidebar__list a:focus-visible {
  color: var(--accent);
}

.sidebar__text {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.sidebar__meta {
  margin-top: 0.4rem;
  font-size: 0.6875rem;
  color: var(--text-muted);
  opacity: 0.85;
}

.sidebar__meta a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

.sidebar__meta a:hover,
.sidebar__meta a:focus-visible {
  color: var(--accent-hover);
}

.sidebar__block--word .sidebar__heading {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.sidebar__block--word .sidebar__heading::before {
  content: "";
  flex-shrink: 0;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-gold);
  opacity: 0.75;
}

.sidebar__word-greek {
  margin: 0 0 0.25rem;
  font-family: var(--font-serif);
  font-size: 1.3125rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.01em;
}

.sidebar__word-translit {
  margin: 0 0 0.35rem;
  font-size: 0.75rem;
  color: var(--color-accent);
  letter-spacing: 0.03em;
}

.sidebar__word-english {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* Lesson page */
.list-header__back {
  display: inline-block;
  margin-bottom: var(--space-md);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.8125rem;
  transition: color var(--transition);
}

.list-header__back:hover,
.list-header__back:focus-visible {
  color: var(--accent);
}

.page-header__title--lesson {
  font-size: 1.875rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.lesson-block {
  margin-top: var(--space-lg);
}

.list-video {
  width: 100%;
  max-width: 360px;
  margin: 0 0 var(--space-lg);
  padding: 0.625rem;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  overflow: hidden;
}

.list-video video {
  display: block;
  width: 100%;
  height: auto;
  background: var(--video-bg);
}

.list-audio {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.list-audio__play {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.875rem;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), color var(--transition);
}

.list-audio__play:hover,
.list-audio__play:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.list-audio__play.is-playing {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--surface-alt);
}

.list-audio__icon {
  font-size: 0.625rem;
  color: var(--accent);
}

.list-audio__label {
  color: var(--text-muted);
}

.list-audio__pause {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  padding: 0;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.625rem;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition);
}

.list-audio__pause:hover:not(:disabled),
.list-audio__pause:focus-visible:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

.list-audio__pause:disabled {
  opacity: 0.35;
  cursor: default;
}

.list-tools {
  margin: 0 0 var(--space-xl);
}

.list-tools__link {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.8125rem;
  border-bottom: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}

.list-tools__link:hover,
.list-tools__link:focus-visible {
  color: var(--accent-hover);
  border-bottom-color: var(--accent-hover);
}

/* Vocabulary table */
.vocab-list {
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}

.vocab-list__head,
.vocab-list__row {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1.15fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: 0.5rem 0.875rem;
  padding: 0.875rem 0.5rem;
  align-items: center;
}

.vocab-list__head-play,
.vocab-list__play {
  grid-column: 1;
}

.vocab-list__head span:nth-child(2),
.vocab-list__greek {
  grid-column: 2;
  min-width: 0;
}

.vocab-list__head span:nth-child(3),
.vocab-list__translit {
  grid-column: 3;
  min-width: 0;
}

.vocab-list__head span:nth-child(4),
.vocab-list__english {
  grid-column: 4;
  min-width: 0;
}

.vocab-list__play {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.625rem;
  height: 1.625rem;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.5rem;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.vocab-list__play:hover,
.vocab-list__play:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.vocab-list__play.is-playing {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--surface-alt);
}

.vocab-list__head {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.75rem;
  background: var(--color-bg);
}

.vocab-list__row {
  font-size: 0.875rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  transition: background var(--transition);
}

.vocab-list__row:nth-child(even) {
  background: var(--color-surface);
}

.vocab-list__row:hover {
  background: var(--color-surface-hover);
}

.vocab-list__row:last-child {
  border-bottom: none;
}

.vocab-list__greek {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.0625rem;
  color: var(--text);
  letter-spacing: 0.01em;
}

.vocab-list__translit {
  color: var(--color-accent);
  font-size: 0.8125rem;
  font-weight: 400;
}

.vocab-list__english {
  color: var(--text);
  font-size: 0.875rem;
}

/* Footer */
.site-footer {
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
}

.site-footer__logo {
  display: block;
  width: 36px;
  height: 36px;
  margin: 0 auto 0.75rem;
  object-fit: cover;
  border-radius: 50%;
  opacity: 0.92;
}

.site-footer a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--accent);
}

.site-footer__brand {
  margin: 0 0 0.3rem;
  font-family: var(--font-serif);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text);
}

.site-footer__tagline {
  margin: 0 0 0.4rem;
  font-size: 0.75rem;
  line-height: 1.5;
}

.site-footer__topics {
  margin: 0 0 0.625rem;
  font-size: 0.6875rem;
  letter-spacing: 0.05em;
  color: var(--color-gold);
  opacity: 0.85;
}

.site-footer__social {
  margin: 0 0 0.4rem;
  font-size: 0.6875rem;
}

.site-footer__url {
  margin: 0;
  font-size: 0.6875rem;
  letter-spacing: 0.02em;
}

/* Tablet: 2 columns, sidebar below */
@media (max-width: 1100px) and (min-width: 961px) {
  .site {
    grid-template-columns: var(--rail-width) minmax(0, 1fr);
  }

  .sidebar {
    grid-column: 1 / -1;
    position: static;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-lg) 2rem;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border);
  }

  .sidebar__block {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
  }

  .site--wide .sidebar {
    display: none;
  }
}

/* Mobile: single column */
@media (max-width: 960px) {
  .site,
  .site--wide {
    grid-template-columns: 1fr;
    padding: 1.25rem 1.125rem 3rem;
    gap: 0;
  }

  .rail {
    position: static;
    min-height: 0;
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "brand brand"
      "nav nav"
      "explore explore"
      "foot foot";
    gap: 0.875rem 1rem;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border);
  }

  .rail__home {
    grid-area: brand;
    display: flex;
    align-items: center;
    gap: 0.625rem;
    margin-bottom: 0;
  }

  .rail__logo-wrap {
    width: 80px;
    height: 80px;
    margin-bottom: 0;
  }

  .rail__nav:not(.rail__nav--explore) {
    grid-area: nav;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.5rem 1.25rem;
  }

  .rail__divider {
    display: none;
  }

  .rail__nav--explore {
    grid-area: explore;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.35rem 1rem;
  }

  .rail__nav-label {
    width: 100%;
    margin-bottom: 0.25rem;
  }

  .rail__foot {
    grid-area: foot;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    margin-top: 0;
    padding-top: 0;
  }

  .main {
    max-width: none;
  }

  .sidebar {
    position: static;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border);
  }

  .sidebar__block {
    margin-bottom: 0;
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border);
  }

  .sidebar__block:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

  .site--wide .sidebar {
    display: none;
  }
}

@media (max-width: 640px) {
  .page-header__title {
    font-size: 1.5625rem;
  }

  .page-header__title--lesson {
    font-size: 1.625rem;
  }

  .lesson-card__video,
  .list-video {
    max-width: 100%;
  }

  .list-audio__play {
    max-width: 100%;
  }

  .list-audio__label {
    overflow-wrap: anywhere;
  }

  .vocab-list__head,
  .vocab-list__row {
    grid-template-columns: 2rem 1fr;
    gap: 0.3rem 0.625rem;
  }

  .vocab-list__head span:nth-child(n+3),
  .vocab-list__row .vocab-list__translit,
  .vocab-list__row .vocab-list__english {
    grid-column: 2;
  }

  .vocab-list__row .vocab-list__greek {
    grid-column: 2;
  }

  .vocab-list__play {
    grid-column: 1;
    grid-row: span 3;
    align-self: start;
  }

  .vocab-list__head span:not(:first-child):not(:nth-child(2)) {
    display: none;
  }

  .vocab-list__row .vocab-list__translit::before {
    content: "· ";
    opacity: 0.5;
  }
}