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

:root {
	font-size: 18px;
	--nav-color: #000000;
}

body {
	margin: 0;
	--color-text: #111;
	--color-bg: #d8d2cd;
	--color-link: #b41717;
	--color-link-hover: #000;
	--color-bg-alt: #c3bcbc;
	--color-text-alt: #111;
	color: var(--color-text);
	background-color: var(--color-bg);
	font-family: roc-grotesk, sans-serif;
	text-transform: uppercase;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	overflow-x: hidden;
}

.demo-2 {
	--color-text: #b41717;
	--color-text-alt: #b41717;
	--color-bg: #000000;
	--color-bg-alt: #9c9191;
	--color-link-hover: #fff;
}

.demo-3 {
	--color-text: #000000;
    --color-text-alt: #000000;
    --color-bg: #846c64;
    --color-bg-alt: #d1d1d1;
    --color-link-hover: #000;
	--color-link: #fff;
}

.demo-4 {
	--color-text: #ffffff;
    --color-text-alt: #78757e;
    --color-bg: #ccc3cf;
    --color-bg-alt: #000000;
    --color-link-hover: #fff;
	--color-link: #d6238c;
}

.demo-5 {
	--color-text: #000000;
    --color-text-alt: #000000;
    --color-bg: #6c7059;
    --color-bg-alt: #ffffff;
    --color-link-hover: #fff;
}

.demo-6 {
	--color-text: #ffffff;
    --color-text-alt: #000000;
    --color-bg: #0f0e0e;
    --color-bg-alt: #a2a2a2;
    --color-link-hover: #fff;
	--color-link: #eb3c0c;
}

.demo-7 {
	--color-text: #b4176e;
    --color-text-alt: #000000;
    --color-bg: #101010;
    --color-bg-alt: #988797;
    --color-link-hover: #b4176e;
	--color-link: #4c34eb;
}

.demo-8 {
	--color-text: #000000;
    --color-bg: #606c62;
    --color-link: #a0ba81;
    --color-link-hover: #000;
    --color-bg-alt: #dadada;
    --color-text-alt: #111;
}

/* Page Loader */
.js .loading::before,
.js .loading::after {
	content: '';
	position: fixed;
	z-index: 1000;
}

.js .loading::before {
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: var(--color-bg);
}

.js .loading::after {
	top: 50%;
	left: 50%;
	width: 60px;
	height: 60px;
	margin: -30px 0 0 -30px;
	border-radius: 50%;
	opacity: 0.4;
	background: var(--color-link);
	animation: loaderAnim 0.7s linear infinite alternate forwards;

}

@keyframes loaderAnim {
	to {
		opacity: 1;
		transform: scale3d(0.5,0.5,1);
	}
}

a {
	text-decoration: none;
	color: var(--color-link);
	outline: none;
}

a:hover {
	color: var(--color-link-hover);
	outline: none;
}

/* Better focus styles from https://developer.mozilla.org/en-US/docs/Web/CSS/:focus-visible */
a:focus {
	/* Provide a fallback style for browsers
	 that don't support :focus-visible */
	outline: none;
	background: lightgrey;
}

a:focus:not(:focus-visible) {
	/* Remove the focus indicator on mouse-focus for browsers
	 that do support :focus-visible */
	background: transparent;
}

a:focus-visible {
	/* Draw a very noticeable focus style for
	 keyboard-focus on browsers that do support
	 :focus-visible */
	outline: 2px solid red;
	background: transparent;
}

.unbutton {
	background: none;
	border: 0;
	padding: 0;
	margin: 0;
	font: inherit;
}

.unbutton:focus {
	outline: none;
}

.frame {
	position: fixed;
	z-index: 1000;
	top: 0;
	left: 0;
	display: grid;
	align-content: space-between;
	width: 100%;
	max-width: none;
	padding: 1rem;
	pointer-events: none;
	grid-template-columns: 1fr;
	grid-template-rows: repeat(4,auto);
	grid-template-areas: 'title' 'prev' 'sponsor' 'demos' ;
}

.frame a,
.frame button {
	pointer-events: auto;
}

.frame__title {
	grid-area: title;
	justify-content: flex-start;
	align-items: center;
	display: flex;
	margin-bottom: 0.5rem;
}

.frame__title-main {
	font-size: 1rem;
	margin: 0;
	font-weight: 400;
}

.frame__title-back {
	position: relative;
	display: flex;
	align-items: flex-end;
}

.frame__title-back span {
	display: none;
}

.frame__title-back svg {
	fill: var(--color-link);
}

.frame__title-back:hover svg,
.frame__title-back:focus svg {
	fill: var(--color-link-hover);
}

.frame__demos {
	grid-area: demos;
}

.frame__demos a {
	margin-left: 2rem;
	position: relative;
}

.frame__demo--current,
.frame__demo--current:hover {
	color: var(--color-text);
}

.frame__prev {
	grid-area: prev;
	justify-self: start;
}

.frame__demos-title {
	display: block;
}

.grid {
	position: relative;
	width: 100%;
	display: grid;
	grid-template-columns: repeat(8,1fr);
}

.grid__item {
	position: relative;
	will-change: transform;
	grid-column: var(--c);
	grid-row: var(--r);
}

.grid__item-img {
	position: relative;
	width: 100%;
	height: auto;
	aspect-ratio: 1;
	background-size: cover;
	background-position: 50% 50%;
	will-change: transform, opacity;
}

.demo-1 .grid__item-img {
	filter: contrast(70%);
}

.cover {
	position: fixed;
	width: 100%;
	height: 100vh;
	top: 0;
	left: 0;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	pointer-events: none;
}

.cover__title {
	font-family: novecento-sans-wide, sans-serif;
	font-size: 8vw;
	font-weight: 600;
	margin: 0;
}

.cover__title sup {
	font-size: 4vw;
	font-weight: bold;
	vertical-align: 75%;
}

.cover__subtitle {
	font-size: 1.5rem;
	font-weight: 400;
	margin: 0;
}

.footer {
	color: var(--color-text-alt);
	background: var(--color-bg-alt);
	height: 100vh;
	font-size: 5vh;
	line-height: 1.2;
	position: relative;
	z-index: 200;
	text-transform: none;
	display: flex;
	align-items: center;
	justify-content: center;
}

.footer p {
	max-width: 40ch;
}

@media screen and (min-width: 53em) {
	.frame {
		height: 100vh;
		grid-template-columns: auto 1fr;
		grid-template-rows: auto 1fr auto;
		grid-template-areas: 'prev sponsor' '... ...' 'title demos';
	}
	.frame__demos {
		justify-self: end;
		margin: 0 1rem;
		white-space: nowrap;
	}
	.frame__demo--current::after {
		content: '';
		position: absolute;
		top: 100%;
		height: 120%;
		width: 1px;
		left: 50%;
		background: currentColor;
	}
	.frame__demos-title {
		display: inline;
	}
}

/* Scroll Indicator Positioning */
.scroll-indicator {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
  animation: hideIndicator 1s ease forwards;
  animation-delay: 5s; /* disappears after 5sec */
}

/* Mouse Shape */
.icon-scroll,
.icon-scroll:before {
  position: absolute;
  left: 50%;
}

.icon-scroll {
  width: 40px;
  height: 70px;
  margin-left: -20px;
  box-shadow: inset 0 0 0 2px var(--nav-color);
  border-radius: 25px;
  position: relative;
}

.icon-scroll:before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--nav-color);
  margin-left: -4px;
  top: 8px;
  border-radius: 4px;
  animation: scroll 1.5s infinite ease-out;
}

/* Dot movement */
@keyframes scroll {
  0% {
    opacity: 1;
    transform: translateY(0px);
  }
  100% {
    opacity: 0;
    transform: translateY(45px);
  }
}

/* Fade out indicator after delay */
@keyframes hideIndicator {
  to {
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
  }
}

/* ===== Bottom color-spec nav with GSAP Flip corners ===== */
.nav {
  position: fixed;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 3rem;
  font-family: "Neue Montreal Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  pointer-events: auto;
  z-index: 50;
}

.nav-link {
  position: relative;
  background: none;
  border: 0;
  padding: 0.75rem 1.5rem;
  cursor: pointer;
  text-align: left;
  display: inline-flex;
  flex-direction: column;
  row-gap: 0.3rem;
  color: var(--nav-color);
}

.nav-line {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}

.nav-dot {
  opacity: 0.7;
  color: var(--nav-color);
}

.nav-label {
  opacity: 0.9;
}

.nav-value,
.nav-meta {
  opacity: 0.55;
  font-size: 11px;
  color: var(--nav-color);
}

/* shared corners box */
.nav-corners {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.nav-corner {
  position: absolute;
  width: 10px;
  height: 10px;
  border: 1px solid var(--nav-color);
  color: var(--nav-color);
}

.nav-corner--tl {
  top: 0;
  left: 0;
  border-right: 0;
  border-bottom: 0;
}

.nav-corner--tr {
  top: 0;
  right: 0;
  border-left: 0;
  border-bottom: 0;
}

.nav-corner--bl {
  bottom: 0;
  left: 0;
  border-right: 0;
  border-top: 0;
}

.nav-corner--br {
  bottom: 0;
  right: 0;
  border-left: 0;
  border-top: 0;
}

.nav-link:hover {
  opacity: 0.7;
}

/* ===== Footer Nav with Flip Corners (static color) ===== */

.footer-nav-wrapper {
  margin-top: 4rem;
  width: 100%;
  display: flex;
  justify-content: center;
}

.footer-nav {
  display: flex;
  gap: 3rem;
  font-family: "Neue Montreal Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  position: relative;
}

.footer-nav-link {
  position: relative;
  background: none;
  border: 0;
  padding: 0.75rem 1.5rem;
  cursor: pointer;
  display: inline-flex;
  flex-direction: column;
  row-gap: 0.3rem;

  /* STATIC COLOR (not using --nav-color) */
  color: var(--color-text-alt);
}

.footer-nav-link:hover {
  opacity: 0.7;
}

.footer-nav-link .nav-label {
  opacity: 0.9;
}

.footer-nav-link .nav-value,
.footer-nav-link .nav-meta {
  opacity: 0.55;
  font-size: 11px;
}

/* Shared corners */
.footer-nav-corners {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.footer-nav-corners .nav-corner {
  position: absolute;
  width: 10px;
  height: 10px;
  border: 1px solid var(--color-text-alt); /* static */
}

.footer-nav-corners .nav-corner--tl {
  top: 0;
  left: 0;
  border-right: 0;
  border-bottom: 0;
}

.footer-nav-corners .nav-corner--tr {
  top: 0;
  right: 0;
  border-left: 0;
  border-bottom: 0;
}

.footer-nav-corners .nav-corner--bl {
  bottom: 0;
  left: 0;
  border-right: 0;
  border-top: 0;
}

.footer-nav-corners .nav-corner--br {
  bottom: 0;
  right: 0;
  border-left: 0;
  border-top: 0;
}

/* ============ MOBILE LAYOUT ============ */
@media (max-width: 768px) {
  /* Main color nav (bottom) */
  .nav {
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    padding: 0 1rem;

    /* shrink and allow horizontal scroll */
    gap: 0.75rem;
    justify-content: flex-start;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .nav-link {
    padding: 0.45rem 0.9rem;
    font-size: 11px;
    row-gap: 0.2rem;
    white-space: nowrap; /* keep each button on one line */
  }

  .nav-value,
  .nav-meta {
    font-size: 10px;
  }

  .nav-corner {
    width: 8px;
    height: 8px;
  }

  /* Make sure the scroll indicator and cover don't collide with nav */
  .cover {
    padding-bottom: 4rem;
  }

  /* -------- Footer + footer nav -------- */

  .footer {
    height: auto;            /* let it grow with content */
    min-height: 100vh;       /* still fill the screen */
    font-size: 2.4vh;        /* smaller text on mobile */
    padding: 2rem 1.5rem;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    text-align: left;
  }

  .footer p {
    max-width: 32ch;
  }

  .footer-nav-wrapper {
    margin-top: 1.75rem;
    width: 100%;
    display: flex;
    justify-content: flex-start;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-right: 1rem;
  }

  .footer-nav {
    gap: 0.75rem;
  }

  .footer-nav-link {
    padding: 0.45rem 0.9rem;
    font-size: 11px;
    row-gap: 0.2rem;
    white-space: nowrap;
  }

  .footer-nav-corners .nav-corner {
    width: 8px;
    height: 8px;
  }
}