/* View Transition API opt-in for cross-document transitions */
@view-transition {
  navigation: auto;
  types: forward, backward;
}

:root {
  --principle-surface-deep: rgb(22, 20, 18);
  --principle-pad-x: 8vw;
  --principle-pad-bottom: 8rem;
  --principle-header-top: 7rem;
  --principle-main-width: 40rem;
}

html:has(body.principle-site) {
  background: var(--principle-surface-deep);
}

body.principle-site {
  margin: 0 auto;
  min-height: 100vh;
  padding: 0 var(--principle-pad-x) var(--principle-pad-bottom);
  max-width: 1680px;
  box-sizing: border-box;
  color: var(--very-light-yellow);
  background: var(--principle-surface-deep);
  line-height: 1.5;
  overflow-x: clip;
}

        .principle-site__page {
  max-width: var(--principle-main-width);
  padding-right: clamp(2rem, 4vw, 3.5rem);
  box-sizing: border-box;
}

.principle-site__header {
  padding-top: var(--principle-header-top);
  margin-bottom: 2rem;
  view-transition-name: principle-breadcrumb;
}

.principle-page {
  max-width: var(--principle-main-width);
  margin: 0;
  padding: 0;
  view-transition-name: principle-content;
  transition: min-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.principle-content {
  margin-top: 2rem;
}

.principle-page:has(.principle-content.content-hidden) {
  min-height: calc(100dvh - var(--principle-header-top) - var(--principle-pad-bottom) - 4rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.principle-page.content-revealed {
  min-height: 0;
  display: block;
}

body.principle-site h1.principle {
  display: block;
  color: var(--very-light-yellow);
}

body.principle-site p.money-quote {
  color: var(--very-light-yellow-darker);
  opacity: 1;
}

body.principle-site a {
  color: var(--very-light-yellow);
  background: none;
  text-decoration: underline;
  text-decoration-color: var(--link-underline-color, #5452B7);
  text-underline-offset: 0.12em;
}

body.principle-site a:hover {
  color: var(--very-light-yellow);
}

.nav-buttons {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  justify-content: space-between;
  width: min(1680px, 100vw);
  padding: 0 var(--principle-pad-x);
  box-sizing: border-box;
  pointer-events: none;
  z-index: 100;
  view-transition-name: principle-nav;
}

.nav-button {
  padding: 1.5rem;
  background: transparent;
  border: none;
  color: var(--very-light-yellow-darker);
  text-decoration: none;
  transition: color 0.2s ease, transform 0.2s ease, opacity 0.2s ease;
  font-family: "Henrietta Regular";
  font-size: 3.5rem;
  line-height: 1;
  pointer-events: all;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
}

.nav-button:first-child {
  transform: rotate(180deg);
  margin-top: 0.2rem;
}

.nav-button:hover {
  color: var(--very-light-yellow);
  opacity: 0.8;
}

.nav-button:first-child:hover {
  transform: rotate(180deg) scale(1.1);
}

.nav-button:not(:first-child):hover {
  transform: scale(1.1);
}

.nav-button:disabled,
.nav-button.disabled {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}

.close-button-container {
  position: fixed;
  top: 1.5rem;
  right: var(--principle-pad-x);
  z-index: 10000;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
  pointer-events: none;
  view-transition-name: principle-close;
}

.close-button {
  width: 1.5rem;
  height: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border-radius: 50%;
  color: var(--very-light-yellow-darker);
  text-decoration: none;
  font-size: 1.5rem;
  line-height: 1;
  transition: all 0.2s ease;
  cursor: pointer;
  pointer-events: auto;
}

.close-button:hover {
  background: rgba(255, 250, 224, 0.08);
  color: var(--very-light-yellow);
  transform: scale(1.1);
}

.close-button:active {
  transform: scale(0.95);
}

.close-button-label {
  font-size: 0.75rem;
  color: var(--very-light-yellow-darker);
  font-family: "FranklinGothicURW-Boo", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  pointer-events: none;
}

.example-title {
  font-family: "Henrietta Regular", sans-serif;
  font-size: 1.4rem;
  line-height: 1.2;
  color: var(--very-light-yellow-darker);
  margin: 0 0 0.5rem 0;
}

.example-block {
  margin-top: 2.5rem;
}

@keyframes push-in-from-right {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes push-in-from-left {
  from {
    transform: translateX(-100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes push-out-to-left {
  from {
    transform: translateX(0);
    opacity: 1;
  }
  to {
    transform: translateX(-100%);
    opacity: 0;
  }
}

@keyframes push-out-to-right {
  from {
    transform: translateX(0);
    opacity: 1;
  }
  to {
    transform: translateX(100%);
    opacity: 0;
  }
}

::view-transition-old(root),
::view-transition-new(root) {
  animation: none;
}

::view-transition-old(principle-content),
::view-transition-new(principle-content) {
  animation-duration: 0.5s;
  animation-timing-function: cubic-bezier(0.33, 1, 0.68, 1);
}

::view-transition-new(principle-content) {
  animation-name: var(--vt-new-animation, push-in-from-right);
}

::view-transition-old(principle-content) {
  animation-name: var(--vt-old-animation, push-out-to-left);
}

::view-transition-group(principle-close),
::view-transition-group(principle-nav),
::view-transition-group(principle-breadcrumb),
::view-transition-old(principle-close),
::view-transition-new(principle-close),
::view-transition-old(principle-nav),
::view-transition-new(principle-nav),
::view-transition-old(principle-breadcrumb),
::view-transition-new(principle-breadcrumb) {
  animation: none;
}

@media (max-width: 768px) {
  body.principle-site {
    padding: 0 6vw 6rem;
  }

  .principle-site__header {
    padding-top: 5rem;
    margin-bottom: 1.5rem;
  }

  body.principle-site h1.principle {
    font-size: 2rem;
    line-height: 1.2;
  }

  .money-quote {
    font-size: 1.1rem;
    line-height: 1.5;
  }

  .nav-buttons {
    width: 100vw;
    padding: 0 6vw;
  }
}

@media (max-width: 480px) {
  .close-button-container {
    top: 1rem;
    right: 6vw;
  }

  .close-button {
    min-width: 44px;
    min-height: 44px;
    font-size: 1.2rem;
  }

  .nav-buttons {
    position: fixed;
    bottom: 0;
    top: auto;
    left: 0;
    right: 0;
    transform: none;
    width: 100%;
    padding: 1rem 6vw;
    background: rgba(22, 20, 18, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 250, 224, 0.08);
    justify-content: space-between;
  }

  .nav-button {
    width: 2.5rem;
    height: 2.5rem;
    font-size: 2.8rem;
    padding: 0.5rem;
    min-width: 44px;
    min-height: 44px;
  }

  body.principle-site h1.principle {
    font-size: 1.75rem;
  }

  .money-quote {
    font-size: 1rem;
  }
}

@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;
  }

  ::view-transition-old(*),
  ::view-transition-new(*) {
    animation: none !important;
  }
}