/* ------------------- */
/* Custom properties   */
/* ------------------- */

:root {
  /* colors — cinematic cut: cold deep-space void + warm ember + electric signal */
  --clr-dark: 230 45% 5%; /* near-black page base, colder + deeper */
  --clr-light: 231 77% 90%; /* muted lavender text (#D0D6F9, kept) */
  --clr-white: 0 0% 100%;
  --clr-accent: 190 90% 55%; /* electric signal cyan — interactive/data */

  /* warm accent — cinematic gold against the cold blue (CTAs, key highlights) */
  --clr-ember: 32 95% 60%;
  --clr-ember-deep: 20 90% 52%;
  --clr-signal: 190 95% 58%; /* alias for data readouts / HUD */

  /* Surface depth tokens for UI hierarchy (blue-tinted) */
  --surface-1: hsl(230 38% 8%);
  --surface-2: hsl(230 34% 11%);
  --surface-3: hsl(230 30% 15%);

  /* font-sizes — fluid cinematic scale */
  --fs-900: clamp(5rem, 9vw + 1rem, 10rem);
  --fs-800: clamp(3rem, 6vw + 1rem, 6.25rem);
  --fs-700: clamp(1.5rem, 3vw + 0.5rem, 3.5rem);
  --fs-600: clamp(1rem, 1.5vw + 0.5rem, 2rem);
  --fs-500: clamp(1rem, 1vw + 0.5rem, 1.75rem);
  --fs-400: clamp(0.9375rem, 0.4vw + 0.8rem, 1.125rem);
  --fs-300: 1rem;
  --fs-200: 0.875rem;

  /* font-families */
  --ff-serif: "Bellefair", serif;
  --ff-sans-cond: "Barlow Condensed", sans-serif;
  --ff-sans-normal: "Barlow", sans-serif;

  /* Animations */
  --transition: 300ms ease-in-out;
  --transition-slow: 800ms cubic-bezier(0.5, 0, 0.5, 1);
  --page-transition: 600ms ease-in-out;
  --ease-cine: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Page Transition Animation */
.page-transition {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: hsl(var(--clr-dark));
  z-index: 9999;
  transform: translateY(100%);
  pointer-events: none;
}

.page-transition.active {
  animation: pageTransition var(--page-transition) forwards;
}

@keyframes pageTransition {
  0% {
    transform: translateY(100%);
  }
  100% {
    transform: translateY(0);
  }
}

/* Smooth Scroll Behavior */
html {
  scroll-behavior: smooth;
}

/* font sizes are fluid via clamp() in :root — no fixed per-breakpoint overrides */

/* ------------------- */
/* Reset               */
/* ------------------- */

/* https://piccalil.li/blog/a-modern-css-reset/ */

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

/* Better text rendering */
body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Reset margins */
body,
h1,
h2,
h3,
h4,
h5,
p,
figure,
picture {
  margin: 0;
}

h1,
h2,
h3,
h4,
h5,
h6,
p {
  font-weight: 400;
}

/* set up the body */
body {
  font-family: var(--ff-sans-normal);
  font-size: var(--fs-400);
  color: hsl(var(--clr-white));
  background-color: hsl(var(--clr-dark));
  line-height: 1.5;
  min-height: 100vh;

  display: grid;
  grid-template-rows: min-content 1fr;

  overflow-x: hidden;
  position: relative;
}

/* make images easier to work with */
img,
picture {
  max-width: 100%;
  display: block;
}

/* Better image rendering */
img {
  image-rendering: crisp-edges;
}

/* make form elements easier to work with */
input,
button,
textarea,
select {
  font: inherit;
}

/* remove animations for people who've turned them off */
@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;
  }
}

/* ------------------- */
/* Utility classes     */
/* ------------------- */

/* general */

.flex {
  display: flex;
  gap: var(--gap, 1rem);
}

.grid {
  display: grid;
  gap: var(--gap, 1rem);
}

.d-block {
  display: block;
}

.flow > *:where(:not(:first-child)) {
  margin-top: var(--flow-space, 1rem);
}

.flow--space-small {
  --flow-space: 0.75rem;
}

.container {
  padding-inline: 2em;
  margin-inline: auto;
  max-width: 80rem;
}

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

.skip-to-content {
  position: absolute;
  z-index: 9999;
  background: hsl(var(--clr-white));
  color: hsl(var(--clr-dark));
  padding: 0.5em 1em;
  margin-inline: auto;
  transform: translateY(-100%);
  transition: transform 250ms ease-in;
}

.skip-to-content:focus {
  transform: translateY(0);
}

/* colors */

.bg-dark {
  background-color: hsl(var(--clr-dark));
}
.bg-accent {
  background-color: hsl(var(--clr-light));
}
.bg-white {
  background-color: hsl(var(--clr-white));
}

.text-dark {
  color: hsl(var(--clr-dark));
}
.text-accent {
  color: hsl(var(--clr-light));
}
.text-white {
  color: hsl(var(--clr-white));
}

/* typography */

.ff-serif {
  font-family: var(--ff-serif);
}
.ff-sans-cond {
  font-family: var(--ff-sans-cond);
}
.ff-sans-normal {
  font-family: var(--ff-sans-normal);
}

.letter-spacing-1 {
  letter-spacing: 4.75px;
}
.letter-spacing-2 {
  letter-spacing: 2.7px;
}
.letter-spacing-3 {
  letter-spacing: 2.35px;
}

.uppercase {
  text-transform: uppercase;
}

.fs-900 {
  font-size: var(--fs-900);
}
.fs-800 {
  font-size: var(--fs-800);
}
.fs-700 {
  font-size: var(--fs-700);
}
.fs-600 {
  font-size: var(--fs-600);
}
.fs-500 {
  font-size: var(--fs-500);
}
.fs-400 {
  font-size: var(--fs-400);
}
.fs-300 {
  font-size: var(--fs-300);
}
.fs-200 {
  font-size: var(--fs-200);
}

.fs-900,
.fs-800,
.fs-700,
.fs-600 {
  line-height: 1.1;
}

.numbered-title {
  font-family: var(--ff-sans-cond);
  font-size: var(--fs-500);
  text-transform: uppercase;
  letter-spacing: 4.72px;
}

.numbered-title span {
  margin-right: 0.5em;
  font-weight: 700;
  color: hsl(var(--clr-white) / 0.25);
}

/* ------------------- */
/* Compontents         */
/* ------------------- */

.large-button {
  font-size: 2rem;
  position: relative;
  z-index: 1;
  display: inline-grid;
  place-items: center;
  padding: 0 2em;
  border-radius: 50%;
  aspect-ratio: 1;
  text-decoration: none;
  background: hsl(var(--clr-white) / 0.1);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 2px solid hsl(var(--clr-white) / 0.1);
  transition:
    transform var(--transition),
    border-color var(--transition),
    background-color var(--transition);
  cursor: pointer;
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}

.large-button:hover,
.large-button:focus {
  transform: scale(1.1);
  border-color: hsl(var(--clr-white) / 0.5);
  background-color: hsl(var(--clr-white) / 0.2);
}

.large-button::after {
  content: "";
  position: absolute;
  z-index: -1;
  width: 100%;
  height: 100%;
  background: hsl(var(--clr-white) / 0.1);
  border-radius: 50%;
  opacity: 0;
  transition:
    opacity var(--transition),
    transform var(--transition);
}

.large-button:hover::after,
.large-button:focus::after {
  opacity: 1;
  transform: scale(1.5);
}

/* primary-header */

.logo {
  margin: 1.5rem clamp(1.5rem, 5vw, 3.5rem);
}

.primary-header {
  justify-content: space-between;
  align-items: center;
}

.primary-navigation {
  --gap: clamp(1.5rem, 5vw, 3.5rem);
  --underline-gap: 2rem;
  list-style: none;
  padding: 0;
  margin: 0;
  background: hsl(var(--clr-white) / 0.05);
  -webkit-backdrop-filter: blur(1.5rem);
  backdrop-filter: blur(1.5rem);
}

.primary-navigation a {
  text-decoration: none;
  transition: color var(--transition);
}

.primary-navigation a:hover,
.primary-navigation a:focus {
  color: hsl(var(--clr-light));
}

.primary-navigation a::before {
  content: "";
  position: absolute;
  width: 100%;
  height: 2px;
  bottom: -0.5rem;
  left: 0;
  background-color: hsl(var(--clr-white));
  transform: scaleX(0);
  transition: transform var(--transition);
}

.primary-navigation a:hover::before,
.primary-navigation a:focus::before,
.primary-navigation .active a::before {
  transform: scaleX(1);
}

.primary-navigation a > span {
  font-weight: 700;
  margin-right: 0.5em;
}

.mobile-nav-toggle {
  display: none;
}

@media (max-width: 35rem) {
  .primary-navigation {
    --underline-gap: 0.5rem;
    position: fixed;
    z-index: 1000;
    inset: 0 0 0 30%;
    list-style: none;
    padding: min(20rem, 15vh) 2rem;
    margin: 0;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 500ms ease-in-out;
  }

  .primary-navigation[data-visible="true"] {
    transform: translateX(0);
  }

  .primary-navigation.underline-indicators > .active {
    border: 0;
  }

  .mobile-nav-toggle {
    display: block;
    position: absolute;
    z-index: 2000;
    right: 1rem;
    top: 2rem;
    background: transparent;
    background-image: url(./assets/shared/icon-hamburger.svg);
    background-repeat: no-repeat;
    background-position: center;
    width: 1.5rem;
    aspect-ratio: 1;
    border: 0;
  }

  .mobile-nav-toggle[aria-expanded="true"] {
    background-image: url(./assets/shared/icon-close.svg);
  }

  .mobile-nav-toggle:focus-visible {
    outline: 5px solid white;
    outline-offset: 5px;
  }
}

@media (min-width: 35em) {
  .primary-navigation {
    padding-inline: clamp(3rem, 7vw, 7rem);
  }
}

@media (min-width: 35em) and (max-width: 44.999em) {
  .primary-navigation a > span {
    display: none;
  }
}

@media (min-width: 45em) {
  .primary-header::after {
    content: "";
    display: block;
    position: relative;
    height: 1px;
    width: 100%;
    margin-right: -2.5rem;
    background: hsl(var(--clr-white) / 0.25);
    order: 1;
  }

  nav {
    order: 2;
  }

  .primary-navigation {
    margin-block: 2rem;
  }
}

/* ------------------- */
/* Utility classes     */
/* ------------------- */

/* general */

.underline-indicators > * {
  cursor: pointer;
  padding: var(--underline-gap, 1rem) 0;
  border: 0;
  border-bottom: 0.2rem solid hsl(var(--clr-white) / 0);
  background-color: transparent;
  transition:
    border-color var(--transition),
    color var(--transition);
}

.underline-indicators > *:hover,
.underline-indicators > *:focus {
  border-color: hsl(var(--clr-white) / 0.5);
  color: hsl(var(--clr-white));
}

.underline-indicators > .active,
.underline-indicators > [aria-selected="true"] {
  border-color: hsl(var(--clr-white) / 1);
  color: hsl(var(--clr-white));
}

.tab-list {
  --gap: 2rem;
}

.dot-indicators > * {
  cursor: pointer;
  border: 0;
  border-radius: 50%;
  aspect-ratio: 1;
  padding: 0.5em;
  background-color: hsl(var(--clr-white) / 0.25);
  transition: background-color var(--transition);
}

.dot-indicators > *:hover,
.dot-indicators > *:focus {
  background-color: hsl(var(--clr-white) / 0.5);
}

.dot-indicators > [aria-selected="true"] {
  background-color: hsl(var(--clr-white) / 1);
}

/* ----------------------------- */
/* Page specific background      */
/* ----------------------------- */

/* home */
.home {
  background-image:
    radial-gradient(ellipse at 40% 20%, hsl(220 80% 20% / 0.5) 0px, transparent 50%),
    radial-gradient(ellipse at 80% 0%, hsl(180 100% 15% / 0.3) 0px, transparent 50%),
    radial-gradient(ellipse at 0% 50%, hsl(240 60% 10% / 0.4) 0px, transparent 50%),
    url(./assets/home/background-home-mobile.jpg);
}

@media (min-width: 35rem) {
  .home {
    background-position: center center;
    background-image:
      radial-gradient(ellipse at 40% 20%, hsl(220 80% 20% / 0.5) 0px, transparent 50%),
      radial-gradient(ellipse at 80% 0%, hsl(180 100% 15% / 0.3) 0px, transparent 50%),
      radial-gradient(ellipse at 0% 50%, hsl(240 60% 10% / 0.4) 0px, transparent 50%),
      url(./assets/home/background-home-tablet.jpg);
  }
}

@media (min-width: 45rem) {
  .home {
    background-image:
      radial-gradient(ellipse at 40% 20%, hsl(220 80% 20% / 0.5) 0px, transparent 50%),
      radial-gradient(ellipse at 80% 0%, hsl(180 100% 15% / 0.3) 0px, transparent 50%),
      radial-gradient(ellipse at 0% 50%, hsl(240 60% 10% / 0.4) 0px, transparent 50%),
      url(./assets/home/background-home-desktop.jpg);
  }
}

/* destination */
.destination {
  background-image:
    radial-gradient(ellipse at 30% 70%, hsl(220 80% 20% / 0.4) 0px, transparent 50%),
    radial-gradient(ellipse at 70% 20%, hsl(180 100% 15% / 0.3) 0px, transparent 50%),
    radial-gradient(ellipse at 10% 30%, hsl(240 60% 10% / 0.4) 0px, transparent 50%),
    url(./assets/destination/background-destination-mobile.jpg);
}

@media (min-width: 35rem) {
  .destination {
    background-position: center center;
    background-image:
      radial-gradient(ellipse at 30% 70%, hsl(220 80% 20% / 0.4) 0px, transparent 50%),
      radial-gradient(ellipse at 70% 20%, hsl(180 100% 15% / 0.3) 0px, transparent 50%),
      radial-gradient(ellipse at 10% 30%, hsl(240 60% 10% / 0.4) 0px, transparent 50%),
      url(./assets/destination/background-destination-tablet.jpg);
  }
}

@media (min-width: 45rem) {
  .destination {
    background-image:
      radial-gradient(ellipse at 30% 70%, hsl(220 80% 20% / 0.4) 0px, transparent 50%),
      radial-gradient(ellipse at 70% 20%, hsl(180 100% 15% / 0.3) 0px, transparent 50%),
      radial-gradient(ellipse at 10% 30%, hsl(240 60% 10% / 0.4) 0px, transparent 50%),
      url(./assets/destination/background-destination-desktop.jpg);
  }
}

/* crew */
.crew {
  background-image:
    radial-gradient(ellipse at 60% 30%, hsl(220 80% 20% / 0.4) 0px, transparent 50%),
    radial-gradient(ellipse at 20% 70%, hsl(180 100% 15% / 0.3) 0px, transparent 50%),
    radial-gradient(ellipse at 80% 60%, hsl(240 60% 10% / 0.4) 0px, transparent 50%),
    url(./assets/home/background-crew-mobile.jpg);
}

@media (min-width: 35rem) {
  .crew {
    background-position: center center;
    background-image:
      radial-gradient(ellipse at 60% 30%, hsl(220 80% 20% / 0.4) 0px, transparent 50%),
      radial-gradient(ellipse at 20% 70%, hsl(180 100% 15% / 0.3) 0px, transparent 50%),
      radial-gradient(ellipse at 80% 60%, hsl(240 60% 10% / 0.4) 0px, transparent 50%),
      url(./assets/crew/background-crew-tablet.jpg);
  }
}

@media (min-width: 45rem) {
  .crew {
    background-image:
      radial-gradient(ellipse at 60% 30%, hsl(220 80% 20% / 0.4) 0px, transparent 50%),
      radial-gradient(ellipse at 20% 70%, hsl(180 100% 15% / 0.3) 0px, transparent 50%),
      radial-gradient(ellipse at 80% 60%, hsl(240 60% 10% / 0.4) 0px, transparent 50%),
      url(./assets/crew/background-crew-desktop.jpg);
  }
}

/* Technology layout */
.technology {
  background-size: cover;
  background-position: center center;
  background-image:
    radial-gradient(ellipse at 50% 40%, hsl(220 80% 20% / 0.4) 0px, transparent 50%),
    radial-gradient(ellipse at 90% 10%, hsl(180 100% 15% / 0.3) 0px, transparent 50%),
    radial-gradient(ellipse at 10% 80%, hsl(240 60% 10% / 0.4) 0px, transparent 50%),
    url(./assets/technology/background-technology-mobile.jpg);
}

@media (min-width: 35rem) {
  .technology {
    background-position: center center;
    background-image:
      radial-gradient(ellipse at 50% 40%, hsl(220 80% 20% / 0.4) 0px, transparent 50%),
      radial-gradient(ellipse at 90% 10%, hsl(180 100% 15% / 0.3) 0px, transparent 50%),
      radial-gradient(ellipse at 10% 80%, hsl(240 60% 10% / 0.4) 0px, transparent 50%),
      url(./assets/technology/background-technology-tablet.jpg);
  }
}

@media (min-width: 45rem) {
  .technology {
    background-position: center center;
    background-image:
      radial-gradient(ellipse at 50% 40%, hsl(220 80% 20% / 0.4) 0px, transparent 50%),
      radial-gradient(ellipse at 90% 10%, hsl(180 100% 15% / 0.3) 0px, transparent 50%),
      radial-gradient(ellipse at 10% 80%, hsl(240 60% 10% / 0.4) 0px, transparent 50%),
      url(./assets/technology/background-technology-desktop.jpg);
  }
}

.grid-container--technology {
  --flow-space: 2rem;
  grid-template-areas:
    "title"
    "image"
    "tabs"
    "content";
}

.grid-container--technology > picture {
  grid-area: image;
  max-width: 100%;
  border-bottom: 1px solid hsl(var(--clr-white) / 0.1);
}

.grid-container--technology > .number-indicators {
  grid-area: tabs;
}

.grid-container--technology > .technology-info {
  grid-area: content;
  padding-inline: 1rem;
}

.number-indicators {
  flex-direction: row;
  justify-content: center;
  gap: 1rem;
}

.number-indicators > * {
  cursor: pointer;
  border: 1px solid hsl(var(--clr-white) / 0.25);
  border-radius: 50%;
  padding: 0;
  width: 3rem;
  height: 3rem;
  font-family: var(--ff-serif);
  font-size: 1.5rem;
  color: hsl(var(--clr-white));
  background-color: transparent;
  transition:
    border-color var(--transition),
    background-color var(--transition);
}

.number-indicators > *:hover,
.number-indicators > *:focus {
  border-color: hsl(var(--clr-white) / 0.5);
}

.number-indicators > [aria-selected="true"] {
  background-color: hsl(var(--clr-white));
  color: hsl(var(--clr-dark));
  border-color: hsl(var(--clr-white));
}

@keyframes twinkle {
  0% {
    opacity: 0.2;
  }
  100% {
    opacity: 0.8;
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.home,
.destination,
.crew,
.technology {
  position: relative;
  background-size: cover;
  background-position: center;
}

.home::before,
.destination::before,
.crew::before,
.technology::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(2px 2px at 20% 20%, hsl(var(--clr-white)) 1px, transparent 0),
    radial-gradient(2px 2px at 40% 40%, hsl(var(--clr-white)) 1px, transparent 0),
    radial-gradient(2px 2px at 60% 60%, hsl(var(--clr-white)) 1px, transparent 0),
    radial-gradient(2px 2px at 80% 80%, hsl(var(--clr-white)) 1px, transparent 0);
  background-size: 300px 300px;
  animation: twinkle 4s ease-in-out infinite alternate;
  z-index: 1;
  pointer-events: none;
}

.home::after,
.destination::after,
.crew::after,
.technology::after {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(2px 2px at 10% 10%, hsl(var(--clr-white)) 1px, transparent 0),
    radial-gradient(2px 2px at 30% 30%, hsl(var(--clr-white)) 1px, transparent 0),
    radial-gradient(2px 2px at 50% 50%, hsl(var(--clr-white)) 1px, transparent 0),
    radial-gradient(2px 2px at 70% 70%, hsl(var(--clr-white)) 1px, transparent 0);
  background-size: 400px 400px;
  animation: twinkle 4s ease-in-out infinite alternate-reverse;
  z-index: 1;
  pointer-events: none;
}

/* Ensure content stays above the stars */
.primary-header,
.grid-container,
main {
  position: relative;
  z-index: 2;
}

.grid-container picture {
  position: relative;
  transition: transform var(--transition-slow);
  animation: float 6s infinite ease-in-out;
}

.grid-container picture::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, transparent 0%, hsl(var(--clr-dark) / 0.1) 100%);
  opacity: 0;
  transition: opacity var(--transition);
}

.grid-container picture:hover::after {
  opacity: 1;
}

@media (min-width: 35em) {
  .numbered-title {
    margin-top: 2rem;
  }

  .destination-meta {
    flex-direction: row;
    justify-content: space-evenly;
  }

  .grid-container--crew {
    padding-bottom: 0;
    grid-template-areas:
      "title"
      "content"
      "tabs"
      "image";
  }

  .grid-container--technology {
    padding-inline: 2rem;
    grid-template-areas:
      "title"
      "image"
      "tabs"
      "content";
  }

  .number-indicators > * {
    width: 3.5rem;
    height: 3.5rem;
    font-size: 1.5rem;
  }
}

@media (min-width: 45em) {
  .grid-container {
    text-align: left;
    column-gap: var(--container-gap, 2rem);
    grid-template-columns: minmax(1rem, 1fr) repeat(2, minmax(0, 30rem)) minmax(1rem, 1fr);
  }

  .grid-container--home {
    padding-bottom: max(6rem, 20vh);
    align-items: end;
  }

  .grid-container--home > *:first-child {
    grid-column: 2;
  }

  .grid-container--home > *:last-child {
    grid-column: 3;
  }

  .grid-container--destination {
    justify-items: start;
    align-content: start;
    grid-template-areas:
      ". title title ."
      ". image tabs ."
      ". image content .";
  }

  .grid-container--destination > picture {
    max-width: 90%;
  }

  .destination-meta {
    --gap: min(6vw, 6rem);
    justify-content: start;
  }

  .grid-container--crew {
    grid-template-columns: minmax(1rem, 1fr) minmax(0, 37rem) minmax(0, 23rem) minmax(1rem, 1fr);
    justify-items: start;
    grid-template-areas:
      ". title title ."
      ". content image ."
      ". tabs image .";
  }

  .grid-container--crew > picture {
    grid-column: 3;
    max-width: 90%;
  }

  .grid-container--technology {
    grid-template-columns: minmax(1rem, 1fr) minmax(0, 37rem) minmax(0, 23rem);
    grid-template-areas:
      ". title title"
      ". tabs image"
      ". content image";
    justify-items: start;
  }

  .grid-container--technology > picture {
    grid-area: image;
    max-width: 100%;
  }

  .number-indicators {
    flex-direction: column;
  }

  .number-indicators > * {
    width: 4rem;
    height: 4rem;
    font-size: 1.75rem;
  }
}

/* ----------------------------- */
/* Layout                        */
/* ----------------------------- */

.grid-container {
  text-align: center;
  display: grid;
  place-items: center;
  padding-inline: 1rem;
  padding-bottom: 4rem;
  margin-inline: auto;
  max-width: 80rem;
}

.grid-container p:not([class]) {
  max-width: 50ch;
}

.numbered-title {
  grid-area: title;
}

/* destination layout */
.grid-container--destination {
  --flow-space: 2rem;
  grid-template-areas:
    "title"
    "image"
    "tabs"
    "content";
}

.grid-container--destination > picture {
  grid-area: image;
  max-width: 60%;
  align-self: start;
}

.grid-container--destination > .tab-list {
  grid-area: tabs;
}

.grid-container--destination > .destination-info {
  grid-area: content;
}

.destination-meta {
  flex-direction: column;
  border-top: 1px solid hsl(var(--clr-white) / 0.1);
  padding-top: 2.5rem;
  margin-top: 2.5rem;
}

.destination-meta p {
  font-size: 1.75rem;
}

/* crew layout */
.grid-container--crew {
  --flow-space: 2rem;
  grid-template-areas:
    "title"
    "image"
    "tabs"
    "content";
}

.grid-container--crew > picture {
  grid-area: image;
  max-width: 60%;
  border-bottom: 1px solid hsl(var(--clr-white) / 0.1);
}

.grid-container--crew > .dot-indicators {
  grid-area: tabs;
}

.grid-container--crew > .crew-details {
  grid-area: content;
}

/* tablet layout adjustments */
@media (min-width: 35em) {
  .grid-container {
    padding-inline: 2em;
    gap: 2rem;
  }

  .grid-container--destination {
    padding-bottom: 0;
    grid-template-areas:
      "title"
      "image"
      "tabs"
      "content";
  }

  .grid-container--crew {
    padding-bottom: 0;
    grid-template-areas:
      "title"
      "content"
      "tabs"
      "image";
  }
}

/* desktop layout adjustments */
@media (min-width: 45em) {
  .grid-container {
    text-align: left;
    column-gap: var(--container-gap, 2rem);
    grid-template-columns: minmax(2rem, 1fr) repeat(2, minmax(0, 40rem)) minmax(2rem, 1fr);
  }

  .grid-container--home > *:first-child {
    grid-column: 2;
  }

  .grid-container--home > *:last-child {
    grid-column: 3;
  }

  .grid-container--destination {
    justify-items: start;
    align-content: start;
    grid-template-areas:
      ". title title ."
      ". image tabs ."
      ". image content .";
  }

  .grid-container--destination > picture {
    max-width: 90%;
  }

  .destination-meta {
    --gap: min(6vw, 6rem);
    justify-content: start;
  }

  .grid-container--crew {
    grid-template-areas:
      ". title title ."
      ". content image ."
      ". tabs image .";
  }

  .grid-container--crew > picture {
    grid-column: 3;
    max-width: 90%;
    align-self: end;
  }

  .dot-indicators {
    justify-content: flex-start;
  }
}

/* Enhanced Interactive Elements */
.interactive-hover {
  position: relative;
  overflow: hidden;
}

.interactive-hover::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: hsl(var(--clr-white) / 0.1);
  transform: translateY(100%);
  transition: transform var(--transition);
}

.interactive-hover:hover::after,
.interactive-hover:focus::after {
  transform: translateY(0);
}

/* Loading Indicator */
.loading-indicator {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: hsl(var(--clr-dark));
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.loading-indicator.active {
  opacity: 1;
  pointer-events: all;
}

.loading-spinner {
  width: 60px;
  height: 60px;
  border: 4px solid hsl(var(--clr-white) / 0.1);
  border-top-color: hsl(var(--clr-white));
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 1rem;
}

.loading-indicator p {
  color: hsl(var(--clr-white));
  font-family: var(--ff-sans-cond);
  text-transform: uppercase;
  letter-spacing: 2px;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.5;
  }
  50% {
    opacity: 1;
  }
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: hsl(var(--clr-white) / 0.1);
  color: hsl(var(--clr-white));
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  text-decoration: none;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity var(--transition),
    transform var(--transition),
    background-color var(--transition);
  z-index: 1000;
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}

.back-to-top:hover,
.back-to-top:focus {
  background: hsl(var(--clr-white) / 0.2);
}

/* Enhanced Focus Styles */
:focus {
  outline: 2px solid hsl(var(--clr-white));
  outline-offset: 3px;
}

:focus:not(:focus-visible) {
  outline: none;
}

:focus-visible {
  outline: 2px solid hsl(var(--clr-white));
  outline-offset: 3px;
  box-shadow: 0 0 0 4px hsl(var(--clr-white) / 0.2);
}

/* Improved button focus states */
button:focus-visible,
a:focus-visible {
  outline: 2px solid hsl(var(--clr-white));
  outline-offset: 3px;
  box-shadow: 0 0 0 4px hsl(var(--clr-white) / 0.2);
}

/* Tab navigation focus improvements */
[role="tab"]:focus-visible {
  outline: 2px solid hsl(var(--clr-white));
  outline-offset: 2px;
  box-shadow: 0 0 8px hsl(var(--clr-white) / 0.5);
}

/* Navigation link focus */
.primary-navigation a:focus-visible {
  outline: 2px solid hsl(var(--clr-white));
  outline-offset: 2px;
  background: hsl(var(--clr-white) / 0.1);
}

/* Large button enhanced focus */
.large-button:focus-visible {
  outline: 3px solid hsl(var(--clr-white));
  outline-offset: 5px;
  box-shadow: 0 0 20px hsl(var(--clr-white) / 0.5);
}

/* Stars Background */
/* Cosmic nebula shader — sits behind the parallax star layers */
#cosmic-bg {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -2;
  display: block;
}

.stars-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

.stars,
.stars2,
.stars3 {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  animation: twinkle var(--transition-slow) infinite;
  background: transparent;
}

.stars {
  background:
    radial-gradient(2px 2px at 20px 30px, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(2px 2px at 40px 70px, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(2px 2px at 50px 160px, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(2px 2px at 90px 40px, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(2px 2px at 130px 80px, #fff, rgba(0, 0, 0, 0));
  background-size: 200px 200px;
}

.stars2 {
  background:
    radial-gradient(1px 1px at 25px 45px, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(1px 1px at 65px 85px, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(1px 1px at 85px 175px, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(1px 1px at 110px 55px, #fff, rgba(0, 0, 0, 0));
  background-size: 300px 300px;
  animation-delay: 0.2s;
}

.stars3 {
  background:
    radial-gradient(1px 1px at 35px 55px, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(1px 1px at 75px 95px, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(1px 1px at 95px 185px, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(1px 1px at 120px 65px, #fff, rgba(0, 0, 0, 0));
  background-size: 400px 400px;
  animation-delay: 0.4s;
}

@keyframes twinkle {
  0%,
  100% {
    opacity: 0.7;
  }
  50% {
    opacity: 0.3;
  }
}

/* Tooltip Styles */
.tooltip {
  position: fixed;
  padding: 0.5rem 1rem;
  background: hsl(var(--clr-white) / 0.1);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: hsl(var(--clr-white));
  border-radius: 4px;
  font-size: var(--fs-300);
  font-family: var(--ff-sans-cond);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition);
  z-index: 1000;
  text-align: center;
  white-space: nowrap;
}

.tooltip::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 5px solid hsl(var(--clr-white) / 0.1);
}

/* Progress Indicator */
.progress-indicator {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: hsl(var(--clr-white) / 0.1);
  z-index: 1000;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, hsl(var(--clr-light)), hsl(var(--clr-white)));
  width: 0;
  transition: width 0.1s ease-out;
  box-shadow: 0 0 10px hsl(var(--clr-white) / 0.5);
}

/* ===================================
   PORTFOLIO ENHANCEMENTS
   ================================== */

/* Scroll Reveal Animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.6s ease-out var(--reveal-delay, 0s),
    transform 0.6s ease-out var(--reveal-delay, 0s);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Button Ripple Effect */
.ripple-effect {
  position: absolute;
  border-radius: 50%;
  background: hsl(var(--clr-white) / 0.5);
  transform: scale(0);
  animation: ripple-animation 0.6s ease-out;
  pointer-events: none;
}

@keyframes ripple-animation {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* Enhanced Button States */
.large-button,
[role="tab"],
.number-indicators > * {
  transition:
    transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
    box-shadow 0.3s ease,
    background-color 0.3s ease,
    border-color 0.3s ease;
}

.large-button:hover {
  box-shadow: 0 10px 40px hsl(var(--clr-white) / 0.3);
}

.large-button:active {
  transform: scale(0.98);
}

[role="tab"]:hover {
  box-shadow: 0 5px 15px hsl(var(--clr-white) / 0.2);
}

/* Image Loading Skeletons */
.image-skeleton {
  position: relative;
  overflow: hidden;
  background: hsl(var(--clr-white) / 0.05);
  border-radius: 8px;
}

.image-skeleton.loading {
  background: linear-gradient(
    90deg,
    hsl(var(--clr-white) / 0.05) 0%,
    hsl(var(--clr-white) / 0.1) 50%,
    hsl(var(--clr-white) / 0.05) 100%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
}

.image-skeleton.loading img {
  opacity: 0;
}

.image-skeleton.loaded img {
  opacity: 1;
  transition: opacity 0.4s ease-in-out;
}

.image-skeleton.error::after {
  content: "⚠️ Image failed to load";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: hsl(var(--clr-light));
  font-family: var(--ff-sans-cond);
  font-size: var(--fs-300);
}

@keyframes skeleton-loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Enhanced Image Hover */
.grid-container picture {
  transition:
    transform 0.6s cubic-bezier(0.4, 0, 0.2, 1),
    filter 0.3s ease;
  will-change: transform;
}

.grid-container picture:hover {
  filter: brightness(1.1) contrast(1.05);
}

/* Custom Cursor (Optional) */
.custom-cursor {
  width: 20px;
  height: 20px;
  border: 2px solid hsl(var(--clr-white) / 0.5);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 10000;
  transition:
    transform 0.2s ease,
    border-color 0.2s ease;
  transform: translate(-50%, -50%);
}

.custom-cursor.active {
  transform: translate(-50%, -50%) scale(1.5);
  border-color: hsl(var(--clr-light));
  background: hsl(var(--clr-white) / 0.1);
}

/* Counter Animation Highlight */
[data-counter] {
  font-variant-numeric: tabular-nums;
  transition: color 0.3s ease;
}

[data-counter]:hover {
  color: hsl(var(--clr-light));
}

/* Smooth Tab Panel Transitions */
[role="tabpanel"] {
  animation: fadeSlideIn 0.4s ease-in-out;
}

@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(15px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Footer Styles */
.site-footer {
  background: hsl(var(--clr-dark) / 0.95);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-top: 1px solid hsl(var(--clr-white) / 0.1);
  padding: 3rem 2rem 2rem;
  margin-top: auto;
}

.footer-content {
  max-width: 80rem;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.footer-section h3 {
  color: hsl(var(--clr-light));
  font-family: var(--ff-sans-cond);
  font-size: var(--fs-500);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.footer-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: hsl(var(--clr-white) / 0.7);
  text-decoration: none;
  font-family: var(--ff-sans-normal);
  font-size: var(--fs-300);
  transition:
    color 0.3s ease,
    transform 0.3s ease;
  display: inline-block;
}

.footer-section a:hover,
.footer-section a:focus {
  color: hsl(var(--clr-white));
  transform: translateX(5px);
}

.footer-bottom {
  text-align: center;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid hsl(var(--clr-white) / 0.1);
  color: hsl(var(--clr-white) / 0.5);
  font-family: var(--ff-sans-normal);
  font-size: var(--fs-200);
}

.social-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 1rem;
}

.social-links a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: hsl(var(--clr-white) / 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    background-color 0.3s ease,
    transform 0.3s ease;
}

.social-links a:hover {
  background: hsl(var(--clr-white) / 0.2);
  transform: translateY(-3px);
}

/* Enhanced Tooltip */
.tooltip {
  animation: tooltipFadeIn 0.3s ease-in-out;
}

@keyframes tooltipFadeIn {
  from {
    opacity: 0;
    transform: translateY(5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Improved Focus Indicators */
:focus-visible {
  outline: 3px solid hsl(var(--clr-light));
  outline-offset: 4px;
  box-shadow: 0 0 0 6px hsl(var(--clr-light) / 0.2);
  transition: outline-offset 0.2s ease;
}

/* Enhanced Loading Indicator */
.loading-indicator.active .loading-spinner {
  animation:
    spin 1s linear infinite,
    pulse 2s ease-in-out infinite;
}

/* Staggered List Items */
.destination-meta > *,
.dot-indicators > *,
.number-indicators > * {
  animation: fadeSlideIn 0.5s ease-out backwards;
}

.destination-meta > *:nth-child(1) {
  animation-delay: 0.1s;
}
.destination-meta > *:nth-child(2) {
  animation-delay: 0.2s;
}

.dot-indicators > *:nth-child(1) {
  animation-delay: 0.05s;
}
.dot-indicators > *:nth-child(2) {
  animation-delay: 0.1s;
}
.dot-indicators > *:nth-child(3) {
  animation-delay: 0.15s;
}
.dot-indicators > *:nth-child(4) {
  animation-delay: 0.2s;
}

/* Parallax Enhancement */
.parallax {
  will-change: transform;
}

/* ===================================
   MOBILE UX IMPROVEMENTS (Phase 5)
   ================================== */

/* Touch Target Sizing for Touch Devices */
@media (pointer: coarse) {
  /* Ensure minimum 44x44px touch targets */
  .dot-indicators > button {
    min-width: 44px;
    min-height: 44px;
    padding: 12px;
  }

  .number-indicators > button {
    min-width: 48px;
    min-height: 48px;
  }

  .underline-indicators > button,
  .underline-indicators > a {
    padding-block: 12px;
    min-height: 44px;
  }

  .primary-navigation a {
    padding: 12px 8px;
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .mobile-nav-toggle {
    min-width: 44px;
    min-height: 44px;
    padding: 10px;
  }

  .social-links a {
    min-width: 44px;
    min-height: 44px;
  }

  .footer-section a {
    padding-block: 8px;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }
}

/* Faster Touch Response - Remove 300ms Tap Delay */
button,
a,
[role="tab"],
.interactive,
.large-button,
.mobile-nav-toggle,
.dot-indicators > *,
.number-indicators > *,
.underline-indicators > * {
  touch-action: manipulation;
}

/* Enhanced Mobile Navigation */
@media (max-width: 35rem) {
  /* Mobile nav overlay backdrop */
  .primary-navigation::before {
    content: "";
    position: fixed;
    inset: 0;
    background: hsl(var(--clr-dark) / 0.8);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity 300ms ease;
    pointer-events: none;
    z-index: -1;
  }

  .primary-navigation[data-visible="true"]::before {
    opacity: 1;
  }

  /* Smoother slide-in animation */
  .primary-navigation[data-visible="true"] {
    animation: navSlideIn 300ms cubic-bezier(0.4, 0, 0.2, 1) forwards;
  }

  @keyframes navSlideIn {
    from {
      transform: translateX(100%);
      opacity: 0.5;
    }
    to {
      transform: translateX(0);
      opacity: 1;
    }
  }

  /* Nav items stagger animation */
  .primary-navigation[data-visible="true"] li {
    animation: navItemFadeIn 400ms ease backwards;
  }

  .primary-navigation[data-visible="true"] li:nth-child(1) {
    animation-delay: 100ms;
  }
  .primary-navigation[data-visible="true"] li:nth-child(2) {
    animation-delay: 150ms;
  }
  .primary-navigation[data-visible="true"] li:nth-child(3) {
    animation-delay: 200ms;
  }
  .primary-navigation[data-visible="true"] li:nth-child(4) {
    animation-delay: 250ms;
  }

  @keyframes navItemFadeIn {
    from {
      opacity: 0;
      transform: translateX(20px);
    }
    to {
      opacity: 1;
      transform: translateX(0);
    }
  }
}

/* Swipe Indicator Hint (optional visual cue) */
.swipe-hint {
  display: none;
}

@media (pointer: coarse) and (max-width: 45rem) {
  .swipe-hint {
    display: block;
    text-align: center;
    font-size: var(--fs-200);
    color: hsl(var(--clr-white) / 0.5);
    margin-top: 1rem;
  }

  .swipe-hint::before {
    content: "← swipe →";
  }
}

/* Reduced Motion: Disable mobile animations */
@media (prefers-reduced-motion: reduce) {
  .primary-navigation[data-visible="true"],
  .primary-navigation[data-visible="true"] li {
    animation: none;
  }
}

/* ===================================
   INTERACTION REFINEMENTS (Phase 4)
   ================================== */

/* Enhanced Tab Panel Reveal Animation */
[role="tabpanel"]:not([hidden]) {
  animation: panelReveal 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes panelReveal {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Button Press Feedback */
.large-button:active {
  transform: scale(0.98);
  transition: transform 100ms ease;
}

[role="tab"]:active,
.dot-indicators > *:active,
.number-indicators > *:active {
  transform: scale(0.95);
  transition: transform 100ms ease;
}

/* Navigation Underline Draw Animation */
.primary-navigation a {
  position: relative;
}

.primary-navigation a::after {
  content: "";
  position: absolute;
  width: 100%;
  height: 2px;
  bottom: 0;
  left: 0;
  background: linear-gradient(90deg, hsl(var(--clr-accent)), hsl(var(--clr-white)));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

.primary-navigation a:hover::after,
.primary-navigation a:focus::after {
  transform: scaleX(1);
}

.primary-navigation .active a::after {
  transform: scaleX(1);
  background: hsl(var(--clr-white));
}

/* Staggered Page Content Reveal */
.grid-container > * {
  animation: staggerIn 500ms ease backwards;
}

.grid-container > *:nth-child(1) {
  animation-delay: 100ms;
}
.grid-container > *:nth-child(2) {
  animation-delay: 150ms;
}
.grid-container > *:nth-child(3) {
  animation-delay: 200ms;
}
.grid-container > *:nth-child(4) {
  animation-delay: 250ms;
}
.grid-container > *:nth-child(5) {
  animation-delay: 300ms;
}
.grid-container > *:nth-child(6) {
  animation-delay: 350ms;
}

@keyframes staggerIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Smooth Picture Transitions */
picture:not([hidden]) {
  animation: pictureReveal 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes pictureReveal {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Reduced Motion: Disable interaction animations */
@media (prefers-reduced-motion: reduce) {
  [role="tabpanel"]:not([hidden]),
  picture:not([hidden]),
  .grid-container > * {
    animation: none;
  }

  .large-button:active,
  [role="tab"]:active,
  .dot-indicators > *:active,
  .number-indicators > *:active {
    transform: none;
  }

  .primary-navigation a::after {
    transition: none;
  }
}

/* ===================================
   ACCESSIBILITY ENHANCEMENTS (Phase 3)
   ================================== */

/* High Contrast Mode Support */
@media (prefers-contrast: more) {
  :root {
    --clr-light: 231 100% 95%;
    --clr-accent: 185 100% 60%;
  }

  /* Stronger borders and outlines */
  .underline-indicators > .active,
  .underline-indicators > [aria-selected="true"] {
    border-width: 3px;
  }

  .glass-enhanced,
  .primary-navigation {
    border-width: 2px;
    border-color: hsl(var(--clr-white) / 0.3);
  }

  .large-button {
    border-width: 3px;
    border-color: hsl(var(--clr-white) / 0.5);
  }

  /* Higher contrast text */
  .text-accent {
    color: hsl(var(--clr-white));
  }

  /* More visible focus states */
  :focus-visible {
    outline-width: 3px;
    outline-offset: 4px;
  }
}

/* Enhanced Focus Visible with Accent Color */
:focus-visible {
  outline: 2px solid hsl(var(--clr-accent));
  outline-offset: 3px;
}

button:focus-visible,
a:focus-visible,
[role="tab"]:focus-visible {
  outline: 2px solid hsl(var(--clr-accent));
  outline-offset: 3px;
  box-shadow: 0 0 0 4px hsl(var(--clr-accent) / 0.2);
}

.large-button:focus-visible {
  outline: 3px solid hsl(var(--clr-accent));
  outline-offset: 5px;
  box-shadow: 0 0 20px hsl(var(--clr-accent) / 0.4);
}

/* Screen Reader Announcer (for JS to populate) */
#sr-announcer {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ===================================
   FOUNDATION & PERFORMANCE (Phase 2)
   ================================== */

/* Native CSS Scroll-Driven Animations (Progressive Enhancement) */
@supports (animation-timeline: view()) {
  .scroll-reveal-native {
    animation: scrollFadeUp linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 100%;
  }

  @keyframes scrollFadeUp {
    from {
      opacity: 0;
      transform: translateY(30px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  /* Disable JS-based reveals when native is supported */
  .reveal.scroll-reveal-native {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Content Visibility for Off-Screen Sections */
.content-auto {
  content-visibility: auto;
  contain-intrinsic-size: 0 500px;
}

/* Apply to footer and below-fold sections */
.site-footer {
  content-visibility: auto;
  contain-intrinsic-size: 0 300px;
}

/* ===================================
   VISUAL ENHANCEMENTS (Phase 1)
   ================================== */

/* Mesh Gradient Backgrounds */
.hero-gradient {
  background:
    radial-gradient(ellipse at 40% 20%, hsl(220 80% 20% / 0.6) 0px, transparent 50%),
    radial-gradient(ellipse at 80% 0%, hsl(180 100% 15% / 0.4) 0px, transparent 50%),
    radial-gradient(ellipse at 0% 50%, hsl(240 60% 10% / 0.5) 0px, transparent 50%),
    radial-gradient(ellipse at 60% 80%, hsl(var(--clr-accent) / 0.1) 0px, transparent 40%);
}

/* Enhanced Glassmorphism */
.glass-enhanced {
  background: hsl(var(--clr-white) / 0.05);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid hsl(var(--clr-white) / 0.1);
  border-radius: 16px;
}

/* Hover Lift Effect */
.hover-lift {
  transition:
    transform var(--transition),
    box-shadow var(--transition);
}

.hover-lift:hover,
.hover-lift:focus {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px hsl(var(--clr-white) / 0.1);
}

/* Image Reveal Hover Effect */
.image-reveal {
  overflow: hidden;
  border-radius: 8px;
}

.image-reveal img {
  transition:
    transform 600ms cubic-bezier(0.4, 0, 0.2, 1),
    filter 400ms ease;
}

.image-reveal:hover img,
.image-reveal:focus-within img {
  transform: scale(1.03);
  filter: brightness(1.1) contrast(1.05);
}

/* Surface Depth Classes */
.surface-1 {
  background: var(--surface-1);
}

.surface-2 {
  background: var(--surface-2);
}

.surface-3 {
  background: var(--surface-3);
}

/* Accent Color Utilities */
.text-accent-cyan {
  color: hsl(var(--clr-accent));
}

.border-accent {
  border-color: hsl(var(--clr-accent));
}

/* Enhanced Star Layers with Color Variation */
.stars-cyan {
  background:
    radial-gradient(2px 2px at 15% 25%, hsl(var(--clr-accent) / 0.6) 1px, transparent 0),
    radial-gradient(2px 2px at 45% 55%, hsl(var(--clr-accent) / 0.4) 1px, transparent 0),
    radial-gradient(2px 2px at 75% 35%, hsl(var(--clr-accent) / 0.5) 1px, transparent 0),
    radial-gradient(2px 2px at 25% 85%, hsl(var(--clr-accent) / 0.3) 1px, transparent 0);
  background-size: 500px 500px;
  animation: twinkle 5s ease-in-out infinite alternate;
  animation-delay: 0.5s;
}

/* Apply Visual Enhancements to Existing Components */

/* Enhanced Primary Navigation */
.primary-navigation {
  background: hsl(var(--clr-white) / 0.04);
  -webkit-backdrop-filter: blur(2rem) saturate(150%);
  backdrop-filter: blur(2rem) saturate(150%);
}

/* Enhanced Large Button */
.large-button {
  background: hsl(var(--clr-white) / 0.08);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  backdrop-filter: blur(20px) saturate(180%);
  border: 2px solid hsl(var(--clr-white) / 0.15);
}

.large-button:hover,
.large-button:focus {
  border-color: hsl(var(--clr-accent) / 0.6);
  box-shadow:
    0 0 30px hsl(var(--clr-accent) / 0.2),
    0 10px 40px hsl(var(--clr-white) / 0.2);
}

/* Enhanced Tab/Indicator Hover Lift */
.underline-indicators > *:hover,
.underline-indicators > *:focus {
  transform: translateY(-1px);
}

.dot-indicators > *:hover,
.dot-indicators > *:focus {
  transform: translateY(-2px) scale(1.1);
  box-shadow: 0 4px 12px hsl(var(--clr-white) / 0.2);
}

.number-indicators > *:hover,
.number-indicators > *:focus {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px hsl(var(--clr-white) / 0.15);
}

/* Active States with Accent Color */
.underline-indicators > .active,
.underline-indicators > [aria-selected="true"] {
  border-color: hsl(var(--clr-accent));
}

.dot-indicators > [aria-selected="true"] {
  background-color: hsl(var(--clr-white));
  box-shadow: 0 0 15px hsl(var(--clr-accent) / 0.5);
}

.number-indicators > [aria-selected="true"] {
  box-shadow: 0 0 20px hsl(var(--clr-accent) / 0.3);
}

/* Enhanced Destination/Crew Images with Hover */
.grid-container--destination > picture,
.grid-container--crew > picture {
  border-radius: 12px;
  overflow: hidden;
}

.grid-container--destination > picture img,
.grid-container--crew > picture img {
  transition:
    transform 600ms cubic-bezier(0.4, 0, 0.2, 1),
    filter 400ms ease;
}

.grid-container--destination > picture:hover img,
.grid-container--crew > picture:hover img {
  transform: scale(1.02);
  filter: brightness(1.08) contrast(1.03);
}

/* Tab Panel Surface Enhancement */
.destination-info,
.crew-details,
.technology-info {
  background: var(--surface-1);
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid hsl(var(--clr-white) / 0.05);
}

/* Footer Enhancement */
.site-footer {
  background: var(--surface-1);
  border-top: 1px solid hsl(var(--clr-accent) / 0.1);
}

/* Reduced Motion: Disable hover transforms */
@media (prefers-reduced-motion: reduce) {
  .hover-lift:hover,
  .hover-lift:focus,
  .image-reveal:hover img,
  .image-reveal:focus-within img,
  .underline-indicators > *:hover,
  .dot-indicators > *:hover,
  .number-indicators > *:hover,
  .grid-container--destination > picture:hover img,
  .grid-container--crew > picture:hover img {
    transform: none;
  }
}

/* Print Styles */
@media print {
  .back-to-top,
  .progress-indicator,
  .mobile-nav-toggle,
  .custom-cursor {
    display: none !important;
  }
}