/* Anthrovia 2.0 public design-system baseline.
   Reuse these tokens/controls on future public pages.
   Page-specific Guided Studies layout lives in study-guided.css. */

.av-public-page {
  --av-bg: #faf9f6;
  --av-paper: #faf9f6;
  --av-surface: #ffffff;
  --av-surface-warm: #f3ece0;
  --av-surface-warm-2: #ece4d6;
  --av-text: #241f1a;
  --av-muted: #6a635a;
  --av-line: #e7e0d3;
  --av-line-strong: rgba(36, 31, 26, 0.16);
  --av-navy: #1f2348;
  --av-gold: #b08a56;
  --av-sage: #5f6d5a;
  --av-sage-deep: #4f5c4b;
  --av-sage-soft: rgba(95, 109, 88, 0.12);
  --av-sage-ring: rgba(95, 109, 88, 0.48);
  --av-shadow: 0 10px 28px rgba(36, 31, 26, 0.06);
  --av-radius: 16px;
  --av-radius-sm: 10px;
  --av-header-h: 4.25rem;
  --av-space-1: 0.25rem;
  --av-space-2: 0.5rem;
  --av-space-3: 0.75rem;
  --av-space-4: 1rem;
  --av-space-5: 1.5rem;
  --av-space-6: 2.25rem;
  --av-space-7: 3.5rem;
  --av-font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --av-font-display: "Iowan Old Style", Palatino, "Palatino Linotype", "Times New Roman", Georgia, serif;
  --av-measure: 72rem;
  background: #faf9f6;
  background-image: none;
  color: var(--av-text);
  font-family: var(--av-font-sans);
  margin: 0;
  min-height: 100vh;
}

body.av-public-page {
  background: #faf9f6;
  background-image: none;
}

.av-public-page a {
  color: inherit;
}

.av-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.av-public-page :focus-visible {
  outline: 2px solid var(--av-sage-ring);
  outline-offset: 2px;
}

.av-public-container {
  width: min(var(--av-measure), calc(100% - 2.5rem));
  margin: 0 auto;
}

.av-eyebrow {
  margin: 0 0 var(--av-space-3);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--av-gold);
}

.av-section-title {
  margin: 0 0 var(--av-space-2);
  font-family: var(--av-font-display);
  font-size: clamp(1.65rem, 2.4vw, 2.15rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--av-navy);
}

.av-section-copy {
  margin: 0;
  max-width: 38rem;
  color: var(--av-muted);
  font-size: 0.98rem;
  line-height: 1.6;
}

.av-section-head {
  margin-bottom: var(--av-space-5);
}

.av-public-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: #faf9f6;
  border-bottom: 1px solid var(--av-line);
  backdrop-filter: blur(16px);
}

.av-public-header-inner {
  width: min(var(--av-measure), calc(100% - 2.5rem));
  min-height: var(--av-header-h);
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--av-space-4);
}

.av-public-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  min-width: 0;
}

.av-public-brand-logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
  flex: 0 0 auto;
}

.av-public-brand-text {
  font-size: 0.98rem;
  font-weight: 650;
  letter-spacing: -0.03em;
  color: var(--av-navy);
  white-space: nowrap;
}

.av-public-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.15rem 1.15rem;
}

.av-public-nav-link {
  text-decoration: none;
  color: var(--av-muted);
  font-size: 0.92rem;
  font-weight: 550;
  padding: 0.35rem 0;
  border-bottom: 1px solid transparent;
}

.av-public-nav-link:hover {
  color: var(--av-text);
}

.av-public-nav-link.is-active {
  color: var(--av-navy);
  border-bottom-color: var(--av-gold);
}

.av-public-tools {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.65rem 0.85rem;
}

.av-public-icon {
  width: 1.1rem;
  height: 1.1rem;
  display: block;
}

.av-public-text-link {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--av-navy);
  text-decoration: none;
  white-space: nowrap;
}

.av-public-text-link:hover {
  color: var(--av-sage-deep);
}

.av-public-text-link--quiet {
  color: var(--av-muted);
  font-weight: 550;
}

.av-public-auth-signed-out[hidden],
.av-public-account[hidden],
.av-public-account-menu[hidden],
.av-public-mobile[hidden] {
  display: none !important;
}

.av-public-auth-signed-out {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.av-public-avatar-btn {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: pointer;
  border-radius: 999px;
}

.av-public-avatar {
  position: relative;
  width: 2rem;
  height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 999px;
  background: var(--av-navy);
  color: #f7f1e8;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.av-public-avatar-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 999px;
}

.av-public-account {
  position: relative;
}

.av-public-account-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 0.55rem);
  min-width: 13.5rem;
  padding: 0.4rem;
  border: 1px solid var(--av-line);
  border-radius: var(--av-radius-sm);
  background: var(--av-surface);
  box-shadow: var(--av-shadow);
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.av-public-menu-item,
.av-public-account-menu .av-public-nav-link {
  display: block;
  width: 100%;
  text-align: left;
  appearance: none;
  border: 0;
  background: transparent;
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
  font: inherit;
  font-size: 0.88rem;
  color: var(--av-text);
  text-decoration: none;
  cursor: pointer;
}

.av-public-menu-item:hover,
.av-public-account-menu .av-public-nav-link:hover {
  background: var(--av-sage-soft);
}

.av-public-menu-item.is-current,
.av-public-menu-item[aria-current="page"] {
  color: var(--av-navy);
  font-weight: 650;
}

.av-public-menu-toggle {
  display: none;
  appearance: none;
  border: 1px solid var(--av-line);
  background: var(--av-surface);
  border-radius: 999px;
  width: 2.35rem;
  height: 2.35rem;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--av-navy);
}

.av-public-menu-toggle-close {
  display: none;
}

.av-public-menu-toggle[aria-expanded="true"] .av-public-menu-toggle-open {
  display: none;
}

.av-public-menu-toggle[aria-expanded="true"] .av-public-menu-toggle-close {
  display: block;
}

.av-public-mobile {
  display: none;
  border-top: 1px solid var(--av-line);
  background: #faf9f6;
}

.av-public-mobile-nav {
  width: min(var(--av-measure), calc(100% - 2.5rem));
  margin: 0 auto;
  padding: 0.85rem 0 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.av-public-nav-link--mobile {
  padding: 0.7rem 0;
  border-bottom: 1px solid transparent;
  font-size: 1rem;
}

.av-public-mobile-auth {
  display: flex;
  flex-direction: column;
  margin-top: 0.35rem;
  padding-top: 0.35rem;
  border-top: 1px solid var(--av-line);
}

.av-btn,
.av-public-page .study-path-link,
.av-public-page .btn-theme,
.av-public-page .btn-theme-ghost {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border-radius: 999px;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}

.av-btn-primary,
.av-public-page .study-path-link--primary,
.av-public-page .btn-theme {
  border: 0;
  background: var(--av-navy);
  color: #f7f1e8;
  padding: 0.58rem 1.15rem;
  font-size: 0.9rem;
  box-shadow: 0 6px 16px rgba(31, 35, 72, 0.16);
}

.av-btn-primary:hover,
.av-public-page .study-path-link--primary:hover,
.av-public-page .btn-theme:hover {
  background: var(--av-sage);
  color: #fff;
}

.av-btn-ghost,
.av-public-page .btn-theme-ghost {
  border: 1px solid var(--av-line);
  background: transparent;
  color: var(--av-navy);
  padding: 0.5rem 0.95rem;
  font-size: 0.86rem;
  width: auto;
}

.av-btn-ghost:hover,
.av-public-page .btn-theme-ghost:hover {
  background: var(--av-sage-soft);
  border-color: color-mix(in srgb, var(--av-sage) 35%, var(--av-line));
}

.av-public-page .site-footer {
  width: min(var(--av-measure), calc(100% - 2.5rem));
  margin: 2.5rem auto 0;
  padding: 1.25rem 0 1.6rem;
  border-top: 1px solid var(--av-line);
  background: transparent;
}

@media (max-width: 980px) {
  .av-public-nav,
  .av-public-auth-signed-out {
    display: none;
  }

  .av-public-header-inner {
    grid-template-columns: 1fr auto auto;
  }

  .av-public-menu-toggle,
  .av-public-mobile:not([hidden]) {
    display: flex;
  }

  .av-public-mobile:not([hidden]) {
    display: block;
  }

  .av-public-brand-text {
    font-size: 0.9rem;
  }
}

@media (max-width: 640px) {
  .av-public-container,
  .av-public-header-inner,
  .av-public-mobile-nav,
  .av-public-page .site-footer,
  .av-page-hero-copy {
    width: min(var(--av-measure), calc(100% - 1.5rem));
  }
}

/* Shared learner surfaces. Page CSS should reuse these instead of inventing a new layer. */

.av-page-hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 13.25rem;
  overflow: hidden;
  color: #f7f1e8;
  background: #243044;
}

.av-page-hero-media {
  position: absolute;
  inset: 0;
  margin: 0;
}

.av-page-hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
}

.av-page-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(22, 24, 34, 0.08) 0%,
    rgba(22, 24, 34, 0.22) 46%,
    rgba(16, 18, 28, 0.66) 100%
  );
}

.av-page-hero-copy {
  position: relative;
  z-index: 1;
  width: min(var(--av-measure), calc(100% - 2.5rem));
  margin: 0 auto;
  padding: 2.5rem 0 1.55rem;
}

.av-page-hero .av-eyebrow {
  color: rgba(232, 210, 170, 0.95);
}

.av-page-hero-title {
  margin: 0 0 0.4rem;
  font-family: var(--av-font-display);
  font-size: clamp(2.15rem, 4.4vw, 3.25rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: #f7f1e8;
}

.av-page-hero-lede {
  margin: 0;
  max-width: 36rem;
  font-size: 1rem;
  line-height: 1.55;
  color: rgba(247, 241, 232, 0.88);
}

.av-tab-row,
.av-chip-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.35rem;
}

.av-tab-row {
  gap: 0.15rem 1.15rem;
  border-bottom: 1px solid var(--av-line);
}

.av-tab {
  appearance: none;
  border: 0;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  background: transparent;
  color: var(--av-muted);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 0.55rem 0.05rem 0.6rem;
  text-decoration: none;
  cursor: pointer;
}

.av-tab:hover,
.av-tab.is-active,
.av-tab[aria-current="page"] {
  color: var(--av-navy);
  border-bottom-color: var(--av-gold);
}

.av-chip {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--av-line);
  border-radius: 999px;
  background: var(--av-surface);
  color: var(--av-text);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1.2;
  padding: 0.38rem 0.78rem;
  text-decoration: none;
  cursor: pointer;
}

.av-chip:hover {
  border-color: color-mix(in srgb, var(--av-navy) 30%, var(--av-line));
  color: var(--av-navy);
}

.av-chip.is-active,
.av-chip.is-on,
.av-chip[aria-current="page"],
.av-chip[aria-pressed="true"] {
  background: var(--av-navy);
  border-color: var(--av-navy);
  color: #f7f1e8;
}

.av-content-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.62rem 0.85rem;
  background: var(--av-surface);
  border: 1px solid var(--av-line);
  border-radius: 12px;
}

.av-text-action {
  color: var(--av-navy);
  font-size: 0.84rem;
  font-weight: 650;
  text-decoration: none;
}

.av-text-action:hover {
  color: var(--av-sage-deep);
}

.av-page-header {
  padding: 2.15rem 0 0.35rem;
}

.av-page-header-title,
.av-page-header .av-page-hero-title,
.av-page-header .library-page-title,
.av-page-header .daily-reflections-hero-title,
.av-page-header .study-hero-title {
  margin: 0 0 0.5rem;
  font-family: var(--av-font-display);
  font-size: clamp(2.15rem, 4.2vw, 3.15rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: var(--av-navy);
}

.av-page-header-lede,
.av-page-header .av-page-hero-lede,
.av-page-header .library-page-lede,
.av-page-header .daily-reflections-hero-lede,
.av-page-header .study-hero-lede {
  margin: 0;
  max-width: 38rem;
  color: var(--av-muted);
  font-size: 1.02rem;
  line-height: 1.55;
}

.av-editorial-header {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(11.5rem, 1fr);
  gap: 1.15rem 2rem;
  align-items: center;
  padding: 1.7rem 0 0.2rem;
}

.av-editorial-copy {
  min-width: 0;
  max-width: 36rem;
}

.av-editorial-header .study-hero-title,
.av-editorial-header .daily-reflections-hero-title {
  margin: 0 0 0.55rem;
  font-family: var(--av-font-display);
  font-size: clamp(2.15rem, 4vw, 3.05rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.02;
  color: var(--av-navy);
}

.av-editorial-header .study-hero-lede,
.av-editorial-header .daily-reflections-hero-lede {
  margin: 0;
  max-width: 34rem;
  color: var(--av-muted);
  font-size: 1.02rem;
  line-height: 1.55;
}

.av-editorial-media {
  margin: 0;
  overflow: hidden;
  border-radius: 12px;
  aspect-ratio: 16 / 10;
  max-height: 11rem;
}

.av-editorial-header--quiet .av-editorial-media {
  aspect-ratio: 3 / 2;
  max-height: 9.75rem;
}

.av-editorial-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 46%;
}

.av-editorial-header--quiet .av-editorial-media img {
  object-position: center 38%;
}

@media (max-width: 760px) {
  .av-editorial-header {
    grid-template-columns: 1fr;
    gap: 0.95rem;
    padding-top: 1.35rem;
  }

  .av-editorial-media,
  .av-editorial-header--quiet .av-editorial-media {
    order: 2;
    max-height: 10.5rem;
  }
}