/*
 * experiment.css -- standalone experiment pages.
 * Uses the existing Music with Max tokens/components and adds only page-specific
 * layout for the THIRI + MusicAPI.ai live experiment.
 */

.experiment-header {
  position: absolute;
  inset-inline: 0;
  top: 0;
  background: linear-gradient(
    to bottom,
    color-mix(in srgb, var(--ink) 86%, transparent),
    transparent
  );
  border-bottom-color: color-mix(in srgb, var(--bone) 12%, transparent);
}

.experiment-header .wordmark,
.experiment-header .nav-link {
  text-shadow: 0 1px 14px color-mix(in srgb, var(--ink) 95%, transparent);
}

.experiment-hero {
  position: relative;
  display: flex;
  align-items: end;
  min-height: clamp(560px, 72vh, 760px);
  padding-block: clamp(108px, 14vh, 172px) var(--space-7);
  overflow: hidden;
  isolation: isolate;
}

.experiment-hero__image,
.experiment-hero__shade {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.experiment-hero__image {
  background-image: var(
    --experiment-hero-image,
    url('/assets/images/experiments/thiri-fifth-door-slides/fifth-door-slide-ai-album-cover-gpt-image-2.png')
  );
  background-position: 50% 38%;
  background-size: cover;
  filter: saturate(92%) contrast(106%) brightness(62%);
  transform: scale(1.02);
}

.experiment-hero__shade {
  z-index: -1;
  background:
    linear-gradient(
      90deg,
      color-mix(in srgb, var(--ink) 90%, transparent) 0%,
      color-mix(in srgb, var(--ink) 70%, transparent) 45%,
      color-mix(in srgb, var(--ink) 42%, transparent) 100%
    ),
    linear-gradient(to top, var(--ink) 0%, transparent 42%);
}

.experiment-hero__inner {
  width: 100%;
}

.experiment-hero__title {
  margin-block: var(--space-4) var(--space-5);
  max-width: 12ch;
  font-size: var(--fs-hero);
  font-weight: 900;
}

.experiment-hero__lead {
  max-width: 58ch;
  text-shadow: 0 2px 18px color-mix(in srgb, var(--ink) 92%, transparent);
}

.experiment-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-7);
}

.experiment-hero__actions--partners {
  margin-top: var(--space-3);
}

.experiment-hero--series .experiment-hero__title {
  max-width: 14ch;
}

.btn--partner {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--teal) 24%, transparent), transparent),
    var(--ink-2);
  border-color: color-mix(in srgb, var(--teal) 72%, var(--bone));
  color: var(--bone);
  box-shadow: 0 14px 28px -20px color-mix(in srgb, var(--teal) 80%, transparent);
}

.btn--partner:hover {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--teal) 36%, transparent), transparent),
    var(--ink-3);
  border-color: var(--teal);
  color: var(--bone);
  transform: translateY(-1px);
}

.experiment-section {
  padding-block: var(--section-y);
  border-bottom: var(--hairline);
}

.experiment-section--paper {
  background: var(--paper);
  color: var(--paper-ink);
}

.experiment-section--paper .section-title,
.experiment-section--paper .lead {
  color: var(--paper-ink);
}

.experiment-intro {
  display: grid;
  gap: var(--space-8);
}

.experiment-intro__copy p:not(.eyebrow):not(.lead) {
  margin-top: var(--space-5);
  color: var(--bone-dim);
}

.experiment-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.experiment-series__intro {
  display: grid;
  gap: var(--space-4);
}

.experiment-series-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  margin-top: var(--space-8);
}

.experiment-card {
  display: grid;
  overflow: hidden;
  border: var(--hairline);
  border-radius: var(--radius-media);
  color: var(--bone);
  background:
    linear-gradient(
      135deg,
      color-mix(in srgb, var(--teal) 10%, transparent),
      color-mix(in srgb, var(--ember) 8%, transparent)
    ),
    var(--ink-2);
  box-shadow:
    inset 0 1px 0 0 color-mix(in srgb, var(--bone) 5%, transparent),
    0 24px 52px -34px color-mix(in srgb, var(--ink) 95%, transparent);
  transition:
    border-color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

.experiment-card:hover {
  color: var(--bone);
}

.experiment-card--link:hover,
.experiment-card--link:focus-visible {
  border-color: color-mix(in srgb, var(--teal) 52%, var(--ink-3));
  transform: translateY(-1px);
}

.experiment-card--pending {
  background: var(--ink-2);
}

.experiment-card__media {
  display: block;
  min-height: 220px;
  background: var(--ink-3);
}

.experiment-card__media img {
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
}

.experiment-card__media--placeholder {
  display: grid;
  place-items: center;
  min-height: 220px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--teal) 18%, transparent), transparent),
    repeating-linear-gradient(
      -12deg,
      color-mix(in srgb, var(--bone) 7%, transparent) 0 1px,
      transparent 1px 12px
    ),
    var(--ink-3);
}

.experiment-card__media--placeholder span {
  font-family: var(--font-display);
  font-size: clamp(5rem, 18vw, 9rem);
  font-weight: 900;
  line-height: 0.8;
  color: color-mix(in srgb, var(--bone) 28%, transparent);
}

.experiment-card__body {
  display: grid;
  gap: var(--space-3);
  align-content: start;
  padding: var(--space-5);
}

.experiment-card__kicker,
.experiment-card__meta {
  font-family: var(--font-ui);
  font-size: var(--fs-caption);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--teal);
  max-width: none;
}

.experiment-card__title {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: 800;
  line-height: 0.95;
  text-transform: uppercase;
  color: var(--bone);
}

.experiment-card__copy {
  display: block;
  color: var(--bone-dim);
}

.experiment-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-3);
  margin-top: var(--space-2);
  color: var(--bone-dim);
}

.experiment-card__meta strong {
  color: var(--bone);
}

.experiment-stat {
  min-height: 132px;
  padding: var(--space-5);
  border: var(--hairline);
  border-radius: var(--radius-media);
  background:
    linear-gradient(
      135deg,
      color-mix(in srgb, var(--teal) 10%, transparent),
      color-mix(in srgb, var(--ember) 8%, transparent)
    ),
    var(--ink-2);
}

.experiment-stat__value,
.experiment-stat__label {
  display: block;
}

.experiment-stat__value {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 900;
  line-height: 0.82;
  color: var(--bone);
}

.experiment-stat__label {
  margin-top: var(--space-3);
  font-family: var(--font-ui);
  font-size: var(--fs-caption);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--bone-dim);
}

.asset-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.asset-card {
  display: grid;
  overflow: hidden;
  border: var(--hairline);
  border-radius: var(--radius-media);
  background: var(--ink-2);
  box-shadow:
    inset 0 1px 0 0 color-mix(in srgb, var(--bone) 5%, transparent),
    0 26px 54px -34px color-mix(in srgb, var(--ink) 95%, transparent);
}

.asset-card > img {
  width: 100%;
  height: 100%;
  min-height: 260px;
  object-fit: cover;
  background: var(--ink-3);
}

.asset-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-5);
}

.asset-card__body h3 {
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: 800;
  text-transform: uppercase;
}

.asset-card__body p {
  color: var(--bone-dim);
}

.asset-card__kicker {
  font-family: var(--font-ui);
  font-size: var(--fs-caption);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--teal);
  max-width: none;
}

.audio-stack {
  display: grid;
  gap: var(--space-3);
}

.audio-stack label {
  display: grid;
  gap: var(--space-2);
}

.audio-stack span {
  font-family: var(--font-ui);
  font-size: var(--fs-caption);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--bone-dim);
}

.wav-loader {
  display: grid;
  gap: var(--space-2);
}

.wav-loader audio {
  display: none;
}

.wav-loader.is-ready audio {
  display: block;
}

.wav-loader__button {
  justify-self: start;
}

.wav-loader__button:disabled {
  opacity: 0.65;
}

.wav-loader__status {
  color: var(--bone-dim);
  font-family: var(--font-ui);
  font-size: var(--fs-caption);
}

audio {
  width: 100%;
  min-height: 44px;
  color-scheme: dark;
}

.asset-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: auto;
}

.visual-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-8);
}

.visual-asset {
  display: grid;
  gap: var(--space-3);
}

.visual-asset img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border: var(--hairline);
  border-radius: var(--radius-media);
  background: var(--ink-2);
  box-shadow: 0 18px 34px -26px color-mix(in srgb, var(--ink) 92%, transparent);
}

.visual-asset figcaption {
  font-family: var(--font-ui);
  font-size: var(--fs-caption);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--bone-dim);
}

.experiment-downloads {
  display: grid;
  gap: var(--space-8);
}

.download-list {
  display: grid;
  gap: var(--space-3);
}

.download-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 56px;
  padding: var(--space-4);
  border: 1px solid color-mix(in srgb, var(--paper-ink) 18%, transparent);
  border-radius: var(--radius-media);
  color: var(--paper-ink);
  background: color-mix(in srgb, var(--paper) 82%, white);
  font-family: var(--font-ui);
  transition:
    border-color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

.download-list a:hover {
  border-color: var(--teal-deep);
  color: var(--paper-ink);
  transform: translateY(-1px);
}

.download-list strong {
  color: var(--teal-deep);
  white-space: nowrap;
}

@media (max-width: 700px) {
  .experiment-header .site-header__right {
    display: none;
  }

  .experiment-hero {
    min-height: auto;
    padding-block: 104px var(--space-5);
  }

  .experiment-hero__title {
    margin-block: var(--space-3) var(--space-4);
  }

  .experiment-hero__actions {
    margin-top: var(--space-5);
  }

  .experiment-hero__actions--partners {
    margin-top: var(--space-2);
  }

  .experiment-hero__shade {
    background:
      linear-gradient(
        to top,
        var(--ink) 0%,
        color-mix(in srgb, var(--ink) 72%, transparent) 54%,
        color-mix(in srgb, var(--ink) 34%, transparent) 100%
      ),
      linear-gradient(to right, color-mix(in srgb, var(--ink) 78%, transparent), transparent);
  }

  .experiment-stats {
    grid-template-columns: 1fr;
  }

  .experiment-card__title {
    font-size: clamp(2.4rem, 15vw, 4.4rem);
  }

  .visual-grid {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 760px) {
  .asset-card {
    grid-template-columns: minmax(240px, 0.45fr) 1fr;
  }

  .experiment-card {
    grid-template-columns: minmax(220px, 0.42fr) 1fr;
  }

  .asset-card > img {
    min-height: 100%;
  }
}

@media (min-width: 960px) {
  .experiment-intro,
  .experiment-downloads {
    grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
    align-items: start;
  }

  .asset-grid--audio {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .asset-grid--audio .asset-card {
    grid-template-columns: 1fr;
  }

  .asset-grid--audio .asset-card > img {
    height: auto;
    min-height: 0;
    aspect-ratio: 16 / 10;
  }

  .visual-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .experiment-series-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .experiment-series-grid .experiment-card {
    grid-template-columns: 1fr;
  }

  .visual-asset--feature {
    grid-column: span 2;
    grid-row: span 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .experiment-hero__image {
    transform: none;
  }

  .download-list a:hover,
  .experiment-card--link:hover,
  .experiment-card--link:focus-visible {
    transform: none;
  }
}