:root {
  --space-sm: 7px;
  --space-md: 10px;
  --space-lg: 12px;
  --space-xl: 24px;

  --color-light: white;
  --color-light-alt: #d9d9d9;
  --color-dark-alt: #1b1a1b;
  --color-dark: black;
  --color-gray: #606060;

  /* accounts for logo padding and width */
  --logo-buffer: calc(var(--space-lg) * 2 + var(--space-xl));
}

@media (min-width: 768px) {
  :root {
    --space-sm: 14px;
    --space-md: 20px;
    --space-lg: 24px;
    --space-xl: 48px;
  }
}

@font-face {
  font-family: "Diatype";
  src: url("../fonts/ABCDiatypeVariable-Trial.woff2") format("woff2-variations");
  font-weight: 200 1000;
  font-style: normal;
}

@font-face {
  font-family: "Tiny";
  src: url("../fonts/TINY5x3GX.ttf") format("truetype-variations");
  font-weight: 0 300;
  font-style: normal;
}

* {
  margin: 0;
  padding: 0;
}

html,
body {
  cursor: default;
  color: var(--color-light);
  background-color: var(--color-dark);
  font-family: "Diatype", sans-serif;
  font-size: 1rem;
  line-height: 1.4;
}

a {
  color: rgba(255, 255, 255, 0.6);
  /* text-decoration: none; */
}

a:hover {
  color: rgba(255, 255, 255, 1);
  /* full opacity on hover */
}

h1 {
  /* font-size: 2rem; */
  font-style: normal;
  font-family: "Diatype", sans-serif;
  font-weight: bold;
  /* font-variation-settings: "wght" 900; */
  /* line-height: 0.9; */
  text-transform: uppercase;
  margin-bottom: 0;
  font-size: 1rem;
  line-height: 1.4;
}

.h1-desktop {
  display: none;
}

@media (min-width: 768px) {
  .h1-mobile {
    display: none;
  }
  .h1-desktop {
    display: block;
  }
}


.hero-container {
  width: 100vw;
  min-height: 50vh;
  position: relative;
}

@media (min-width: 768px) {
  .hero-container {
    min-height: 100vh;
  }
}

#hero {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1;
}

.hero-text {
  background-color: var(--color-dark);
  position: sticky;
  bottom: 0;
  padding-inline: var(--space-lg);
  padding-block: var(--space-md);
}

/* @media (max-width: 500px) {
  .h1-hero img {
    width: 60vw;
    max-width: 60vw;
    height: auto;
  }

  .h1-secondary img {
    width: 60vw;
    max-width:60vw;
    height: auto;
  }
} */

@media (min-width: 768px) {
  .h1-hero img {
    content: url("../icons/AE_logo_horizontal_white_v2.svg");
  }
}

.book {
  max-width: 50%;
}

.artist-square {
  max-width: 25%;
}

.lyrics-block {
  margin-top: 2rem;
}

@media (min-width: 768px) {
  .lyrics-block {
    margin-top: 3rem;
  }
}


.lyrics {
  display: block;
}

.lyrics-2 {
  margin-left: var(--space-lg);
}

.lyrics-3 {
  margin-left: calc(var(--space-lg) * 2);
}

.lyrics-4 {
  margin-left: calc(var(--space-lg) * 3);
}

.lyrics-5 {
  margin-left: calc(var(--space-lg) * 5);
}

.small-text {
  font-size: 0.875rem;
  line-height: 1.3;
  margin-top: var(--space-sm);
}

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

.content-overlay {
  background-color: var(--color-dark);
  position: relative;
  z-index: 2;
}

.sticky-bar-top {
  position: sticky;
  top: 0;
  width: auto;
  height: 1px;
  filter: invert(1);
  mix-blend-mode: difference;
  z-index: 100;
}

.sticky-bar-bottom {
  position: sticky;
  bottom: 0;
  width: auto;
  height: 50vh;
  z-index: 99;
  background-color: var(--color-dark);
}

@media (min-width: 768px) {
  .sticky-bar-bottom {
    height: auto;
  }
  .sticky-bar-bottom .hero-text {
    position: relative;
    bottom: 100%;
  }
}

.logo-container {
  padding-inline: var(--space-lg);
  padding-block: var(--space-md);
}

.logo-container img {
  height: auto;
  width: var(--space-xl);
  display: block;
  filter: invert(1);
  mix-blend-mode: difference;
}

@media (min-width: 768px) {
  .logo-container img {
    width: calc(var(--space-lg));
  }
}

.logo-image {
  display: inline-block;
}

.image-block {
  display: grid;
  grid-template-columns: 1fr;
  align-items: start;
}

@media (min-width: 768px) {
  .image-block {
    grid-template-columns: 1fr 1fr;
  }
}

.image-block.single-column {
  display: grid;
  grid-template-columns: 1fr;
}

.image-block > div {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.image-block-image {
  width: 100%;
  height: auto;
  display: block;
  flex-shrink: 0;
}

.image-block-image img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}

img.img-limited {
  max-height: 80vh;
}

/* the arrow should stack vertically to match brad's mockup */

.image-block-info {
  /* display: flex; */
  padding-inline: var(--space-lg);
  padding-block: var(--space-md);

  gap: var(--space-sm);
  align-items: center;
  font-size: 0.75rem;
  line-height: 1.4;
  margin-top: auto;
}

.image-block > div:last-child .image-block-info {
  padding-bottom: 1.5rem; /* p-4 */
}

.image-block-arrow {
  margin-bottom: var(--space-sm);
  width: var(--space-md);
  height: var(--space-md);
  display: flex;
  justify-content: center;
  align-items: center;
  flex-shrink: 0;
  background-image: url("../icons/Arrow-Up-Solid-DarkGray.svg");
  background-size: cover;
}

i,
.italic,
.image-block-text-title {
  font-variation-settings: "slnt" -12;
}

.split-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  padding: var(--space-xl);
}

@media (min-width: 768px) {
  .split-section {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }
}

.split-section-item {
  max-width: 450px;
}

@media (min-width: 768px) {
  .split-section-item:first-child {
    justify-self: flex-end;
  }
  .summit-title-desc {
    padding-right: calc(var(--space-xl) * 2);
  }
}

.split-section-item-header {
  margin-bottom: var(--space-md);
}

/* Utility background color classes */
.bg-dark {
  background-color: var(--color-dark) !important;
  color: var(--color-light);
}

.bg-dark a {
  color: rgba(255, 255, 255, 0.6);
}

.bg-dark a:hover {
  color: rgba(255, 255, 255, 1);
}

.bg-dark-alt {
  background-color: var(--color-dark-alt);
  color: var(--color-light);
}

.bg-dark-alt a {
  color: rgba(255, 255, 255, 0.6);
}

.bg-dark-alt a:hover {
  color: rgba(255, 255, 255, 1);
}

.bg-light {
  background-color: var(--color-light) !important;
  color: var(--color-dark);
}

.bg-light a {
  color: rgba(0, 0, 0, 0.6);
}

.bg-light a:hover {
  color: rgba(0, 0, 0, 1);
}

.bg-light-alt {
  background-color: var(--color-light-alt);
  color: var(--color-dark);
}

.bg-light-alt a {
  color: rgba(0, 0, 0, 0.6);
}

.bg-light-alt a:hover {
  color: rgba(0, 0, 0, 1);
}

.presenters, .sponsors {
  padding: var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: center;
}

.presenters-grid, .sponsors-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  width: 100%;
  max-width: 950px;
}

@media (min-width: 768px) {
  .presenters-grid, .sponsors-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }
}

@media (min-width: 1024px) {
  .presenters-grid, .sponsors-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .sponsor-span {
    grid-column: span 2;
  }
}

.presenters-grid ul {
  margin: 0;
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
  margin-bottom: var(--space-md);
}

ul.arrow-list {
  list-style: none;
  margin: 0;
  padding: 0;
  margin-bottom: var(--space-sm);
}

ul.arrow-list li {
  padding-left: var(--space-xl);
  background-image: url("../icons/Arrow-Right-Solid-DarkGray.svg");
  background-repeat: no-repeat;
  /* vertically aligns arrow with text */
  background-size: 14px;
  background-position: 0 0.25em;
}

@media (min-width: 768px) {
  ul.arrow-list li {
    padding-left: var(--space-md);
  }
}

.accordion-section {
  padding: var(--space-xl);
}

.accordion {
  max-width: 950px;
  margin: 0 auto;
}

.accordion-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  cursor: pointer;
  user-select: none;
}

.accordion-header h2 {
  margin: 0;
  font-size: 1.5rem;
}

.accordion-header h2 img {
  height: 1.5rem;
  width: auto;
  display: block;
}

.accordion-arrow {
  width: var(--space-xl);
  height: var(--space-xl);
  flex-shrink: 0;
  background-image: url("../icons/Arrow-Up-Gray.svg");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  transition: transform 0.3s ease;
  transform: rotate(180deg);
  /* filter: invert(1); */
}

@media (min-width: 768px) {
  .accordion-arrow {
    width: var(--space-lg);
    height: var(--space-lg);
  }
}

.accordion-item {
  border: none;
  border-radius: 0;
}

.accordion-item.open .accordion-arrow {
  transform: rotate(0deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition:
    max-height 0.3s ease,
    padding 0.3s ease;
  padding-top: 0;
}

.accordion-item.open .accordion-content {
  max-height: 3000px;
  padding-top: var(--space-md);
  padding-bottom: var(--space-md);
}

.accordion-content > div {
  margin-bottom: var(--space-md);
}

.registration-section {
  padding: var(--space-xl);
  gap: var(--space-xl);
}

.registration-section .split-section-item > div,
.credits-section .split-section-item > div {
  margin-bottom: var(--space-md);
}

.link-footer {
  text-decoration: none;
  color: inherit;
}

.link-footer:hover {
  color: var(--color-accent-hsl);
}

.footer {
  position: relative;
  background-color: var(--color-dark-alt);
}

.footer img {
  max-width: 300px;
}

/* Apply extra padding on mobile to account for logo space */
@media (max-width: 768px) {
  .hero-text,
  .image-block-info,
  .split-section,
  .presenters,
  .accordion-section,
  .registration-section,
  .credits-section {
    padding-inline-start: var(--logo-buffer);
  }

  .hero-text {
    padding-inline-end: var(--logo-buffer);
  }
}

.lagi {
  display: inline-block;
  margin-left: 7px;
}

.button {
  background-color: var(--color-dark);
  color: var(--color-light) !important;
  border: none;
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  font-size: 1rem;
  text-decoration: none;
}

.button:hover {
  background-color: rgba(0, 0, 0, 0.6);
  transition: background-color 0.1s;
}