/* Memories of an Unknown Soldier picture mini-book component.
   Extracted from the interaction model of the supplied dark mini-book,
   fully namespaced and rethemed for the I/US Music® Signal Noir system. */
@layer components {
  .booklet-experience {
    background: var(--ambient), var(--canvas);
  }

  .booklet-heading {
    max-width: 720px;
    margin: 0 auto clamp(1.4rem, 3vw, 2.2rem);
    text-align: center;
  }

  .booklet-heading h2 {
    margin: .7rem 0 1rem;
    color: var(--text-strong);
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    letter-spacing: -.045em;
    line-height: .96;
  }

  .booklet-heading p:not(.migration-kicker) {
    max-width: 44em;
    margin-inline: auto;
    color: var(--text-muted);
    line-height: 1.7;
  }

  .mous-mini-book {
    --mous-stage: #020304;
    --mous-stage-raised: #08090b;
    --mous-stage-edge: rgba(255, 255, 255, .13);
    --mous-red: var(--accent-deep);
    --mous-red-text: var(--accent-text);
    --mous-turn-time: 940ms;
    position: relative;
    isolation: isolate;
    max-width: 960px;
    margin-inline: auto;
    color: var(--text-body);
  }

  .mous-mini-book__surface {
    position: relative;
    isolation: isolate;
    padding: clamp(.7rem, 2.4vw, 2rem);
    border: 1px solid var(--border-standard);
    border-radius: var(--radius-md);
    background:
      radial-gradient(circle at 50% -8%, color-mix(in srgb, var(--mous-red) 17%, transparent), transparent 35rem),
      linear-gradient(145deg, #08090b, #020304 58%, #0e1014);
    box-shadow:
      0 45px 140px rgba(0, 0, 0, .52),
      inset 0 1px rgba(255, 255, 255, .06);
    overflow: hidden;
  }

  .mous-mini-book__surface::before {
    content: "";
    position: absolute;
    z-index: -2;
    inset: 0;
    background:
      radial-gradient(circle at 12% 72%, color-mix(in srgb, var(--mous-red) 8%, transparent), transparent 25rem),
      radial-gradient(circle at 90% 36%, rgba(255, 255, 255, .045), transparent 28rem);
    pointer-events: none;
  }

  .mous-mini-book__surface::after {
    content: "";
    position: absolute;
    z-index: 24;
    inset: 0;
    border: 1px solid rgba(255, 255, 255, .045);
    border-radius: inherit;
    pointer-events: none;
  }

  .mous-mini-book__stage {
    position: relative;
    z-index: 1;
    min-height: clamp(420px, 57vw, 650px);
    display: grid;
    place-items: center;
    padding: clamp(1rem, 3vw, 2.4rem) clamp(.2rem, 1.4vw, 1rem) clamp(1.5rem, 4vw, 3rem);
    outline: none;
    perspective: 2200px;
    touch-action: pan-y;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    cursor: default;
  }

  .mous-mini-book__stage::before {
    content: "";
    position: absolute;
    z-index: -2;
    width: min(78vw, 900px);
    height: min(48vw, 470px);
    border-radius: 50%;
    background: radial-gradient(ellipse, color-mix(in srgb, var(--mous-red) 18%, transparent), transparent 68%);
    filter: blur(48px);
    opacity: .72;
    transform: translateY(8%);
    pointer-events: none;
  }

  .mous-mini-book__stage::after {
    content: "";
    position: absolute;
    z-index: -1;
    left: 50%;
    bottom: 7%;
    width: min(84%, 930px);
    height: 8%;
    border-radius: 50%;
    background: rgba(0, 0, 0, .72);
    filter: blur(28px);
    transform: translateX(-50%);
    pointer-events: none;
  }

  .mous-mini-book__stage:focus-visible {
    box-shadow: inset 0 0 0 2px var(--focus-outer);
  }

  .mous-mini-book__stage.is-dragging {
    cursor: grabbing;
  }

  .mous-mini-book__stage.is-jumping {
    opacity: .12;
    transform: scale(.988);
    transition: opacity 180ms var(--ease), transform 180ms var(--ease);
  }

  .mous-mini-book__stage:not(.is-jumping) {
    transition: opacity 220ms var(--ease), transform 220ms var(--ease);
  }

  .mous-mini-book__static-cover {
    width: min(38%, 420px);
    aspect-ratio: 792 / 1077;
    display: grid;
    place-items: center;
    background: #000;
    border: 1px solid var(--mous-stage-edge);
    box-shadow: 22px 34px 90px rgba(0, 0, 0, .72);
  }

  .mous-mini-book__static-cover img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #000;
  }

  .mous-mini-book.is-ready .mous-mini-book__static-cover {
    display: none;
  }

  .mous-mini-book__desktop,
  .mous-mini-book__mobile {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
  }

  .mous-mini-book.is-ready .mous-mini-book__desktop,
  .mous-mini-book.is-ready .mous-mini-book__mobile {
    visibility: visible;
  }

  .mous-mini-book__desktop {
    --mous-book-shift: -25%;
    position: relative;
    width: min(94%, 900px);
    aspect-ratio: 3 / 2;
    opacity: 1;
    pointer-events: auto;
    transform: translateX(var(--mous-book-shift));
    transform-style: preserve-3d;
    filter: drop-shadow(0 32px 36px rgba(0, 0, 0, .48));
    transition: transform var(--normal) var(--ease), opacity var(--normal) var(--ease);
    will-change: transform;
  }

  .mous-mini-book__desktop::before {
    content: "";
    position: absolute;
    z-index: 90;
    top: 1%;
    bottom: 1%;
    left: 50%;
    width: 3px;
    opacity: var(--mous-spine-opacity, 0);
    background:
      linear-gradient(to right, rgba(255, 255, 255, .09), rgba(0, 0, 0, .96) 46%, rgba(255, 255, 255, .06));
    box-shadow:
      -10px 0 18px -12px rgba(0, 0, 0, .96),
      10px 0 18px -12px rgba(0, 0, 0, .96);
    transform: translateX(-50%);
    pointer-events: none;
    transition: opacity var(--normal) var(--ease);
  }

  .mous-mini-book__spread-layer {
    position: absolute;
    z-index: 80;
    inset: 0;
    display: grid;
    place-items: center;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    background: #000;
    border: 1px solid var(--mous-stage-edge);
    transition: opacity var(--normal) var(--ease), visibility 0s linear var(--normal);
  }

  .mous-mini-book__spread-layer.is-active {
    opacity: 1;
    visibility: visible;
    transition-delay: 0s;
  }

  .mous-mini-book__spread-layer .mous-mini-book__image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    background: #000;
  }

  .mous-mini-book__leaf {
    position: absolute;
    top: 0;
    left: 50%;
    width: 50%;
    height: 100%;
    transform: rotateY(var(--mous-leaf-angle, 0deg));
    transform-origin: left center;
    transform-style: preserve-3d;
    transition: transform var(--mous-turn-time) cubic-bezier(.18, .74, .18, 1);
    will-change: transform;
  }

  .mous-mini-book__leaf.is-immediate {
    transition: none !important;
  }

  .mous-mini-book__face {
    position: absolute;
    inset: 0;
    overflow: hidden;
    background: #000;
    border: 1px solid var(--mous-stage-edge);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    transform-style: preserve-3d;
  }

  .mous-mini-book__face--front {
    transform: rotateY(0deg) translateZ(.35px);
  }

  .mous-mini-book__face--back {
    transform: rotateY(180deg) translateZ(.35px);
  }

  .mous-mini-book__face--front::after,
  .mous-mini-book__face--back::after {
    content: "";
    position: absolute;
    z-index: 3;
    top: 0;
    bottom: 0;
    width: 7%;
    pointer-events: none;
  }

  .mous-mini-book__face--front::after {
    left: 0;
    background: linear-gradient(to right, rgba(0, 0, 0, .34), transparent);
  }

  .mous-mini-book__face--back::after {
    right: 0;
    background: linear-gradient(to left, rgba(0, 0, 0, .34), transparent);
  }

  .mous-mini-book__face--blank {
    background:
      radial-gradient(circle at 12% 8%, rgba(255, 255, 255, .025), transparent 28%),
      linear-gradient(145deg, #0b0c0f, #020304);
  }

  .mous-mini-book__face--hard {
    border-color: color-mix(in srgb, var(--mous-red) 35%, rgba(255, 255, 255, .12));
    box-shadow: inset 0 0 0 2px rgba(255, 255, 255, .025);
  }

  .mous-mini-book__face--hard::before {
    content: "";
    position: absolute;
    z-index: 4;
    inset: 0;
    border: 2px solid rgba(255, 255, 255, .025);
    pointer-events: none;
  }

  .mous-mini-book__image {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
    background: #000;
    pointer-events: none;
    -webkit-user-drag: none;
  }

  .mous-mini-book__mobile {
    position: relative;
    display: none;
    width: min(82%, 520px);
    aspect-ratio: 3 / 4;
    opacity: 0;
    transform-style: preserve-3d;
    filter: drop-shadow(18px 30px 44px rgba(0, 0, 0, .58));
  }

  .mous-mini-book__mobile-leaf {
    position: absolute;
    inset: 0;
    overflow: hidden;
    background: #000;
    border: 1px solid var(--mous-stage-edge);
    transform: rotateY(var(--mous-mobile-angle, 0deg));
    transform-origin: left center;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    transition: transform var(--mous-turn-time) cubic-bezier(.18, .74, .18, 1);
    will-change: transform;
  }

  .mous-mini-book__mobile-leaf.is-immediate {
    transition: none !important;
  }

  .mous-mini-book__mobile-leaf::after {
    content: "";
    position: absolute;
    z-index: 3;
    top: 0;
    bottom: 0;
    left: 0;
    width: 8%;
    background: linear-gradient(to right, rgba(0, 0, 0, .34), transparent);
    pointer-events: none;
  }

  .mous-mini-book__gesture {
    position: absolute;
    z-index: 70;
    left: 50%;
    bottom: clamp(.15rem, 1vw, .65rem);
    padding: .42rem .65rem;
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: 999px;
    background: rgba(2, 3, 4, .74);
    color: #c9cbd0;
    font-family: var(--font-mono);
    font-size: .52rem;
    letter-spacing: .09em;
    text-transform: uppercase;
    backdrop-filter: blur(14px);
    transform: translateX(-50%);
    pointer-events: none;
    transition: opacity var(--normal) var(--ease);
  }

  .mous-mini-book:not([data-at-cover="true"]) .mous-mini-book__gesture {
    opacity: 0;
  }

  .mous-mini-book__loading {
    position: absolute;
    z-index: 80;
    inset: 0;
    display: grid;
    place-content: center;
    gap: .7rem;
    background: rgba(2, 3, 4, .74);
    color: #ffffff;
    font-family: var(--font-mono);
    font-size: .58rem;
    letter-spacing: .09em;
    text-align: center;
    text-transform: uppercase;
    backdrop-filter: blur(10px);
  }

  .mous-mini-book__loading[hidden] {
    display: none;
  }

  .mous-mini-book__spinner {
    width: 28px;
    aspect-ratio: 1;
    margin-inline: auto;
    border: 2px solid rgba(255, 255, 255, .18);
    border-top-color: var(--mous-red);
    border-radius: 50%;
    animation: mous-spin .75s linear infinite;
  }

  .mous-mini-book__toolbar {
    position: relative;
    z-index: 3;
    min-height: 62px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 1rem;
    margin-top: .7rem;
    padding: .55rem .7rem .65rem;
    border: 1px solid var(--border-standard);
    border-radius: var(--radius-md);
    background: color-mix(in srgb, var(--surface-overlay) 91%, transparent);
    box-shadow: var(--shadow-raised);
    backdrop-filter: blur(18px) saturate(115%);
    overflow: hidden;
  }

  .mous-mini-book__toolbar-group {
    display: flex;
    align-items: center;
    gap: .4rem;
  }

  .mous-mini-book__toolbar-group:last-of-type {
    justify-content: flex-end;
  }

  .mous-mini-book__control {
    min-width: 42px;
    min-height: 42px;
    display: inline-grid;
    place-items: center;
    padding: .55rem;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-body);
    transition:
      color var(--fast),
      background-color var(--fast),
      border-color var(--fast),
      transform var(--fast),
      opacity var(--fast);
  }

  .mous-mini-book__control:hover:not(:disabled) {
    border-color: var(--border-standard);
    background: var(--control-secondary-bg);
    color: var(--text-strong);
    transform: translateY(-1px);
  }

  .mous-mini-book__control:active:not(:disabled) {
    transform: translateY(0) scale(.96);
  }

  .mous-mini-book__control:focus-visible {
    outline: 2px solid var(--focus-outer);
    outline-offset: 2px;
  }

  .mous-mini-book__control:disabled {
    opacity: .28;
    cursor: not-allowed;
  }

  .mous-mini-book__control--primary {
    border-color: var(--control-primary-border);
    background: var(--control-primary-bg);
    color: var(--control-primary-fg);
  }

  .mous-mini-book__control--primary:hover:not(:disabled) {
    border-color: var(--control-primary-border-hover);
    background: var(--control-primary-hover);
    color: var(--control-primary-fg);
  }

  .mous-mini-book__control svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.7;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .mous-mini-book__control .mous-icon-play {
    fill: currentColor;
    stroke: none;
  }

  .mous-mini-book[data-playing="true"] .mous-icon-play,
  .mous-mini-book[data-playing="false"] .mous-icon-pause {
    display: none;
  }

  .mous-mini-book__status {
    min-width: 150px;
    display: grid;
    justify-items: center;
    gap: .12rem;
    font-variant-numeric: tabular-nums;
    text-align: center;
  }

  .mous-mini-book__position {
    color: var(--text-strong);
    font-family: var(--font-serif);
    font-size: 1.14rem;
    letter-spacing: .03em;
    line-height: 1;
  }

  .mous-mini-book__label,
  .mous-mini-book__mode {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: .5rem;
    letter-spacing: .09em;
    line-height: 1.25;
    text-transform: uppercase;
  }

  .mous-mini-book__autoplay-track {
    position: absolute;
    inset: auto 0 0;
    height: 2px;
    background: color-mix(in srgb, var(--border-subtle) 65%, transparent);
    overflow: hidden;
  }

  .mous-mini-book__autoplay-progress {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, var(--accent-deep), var(--mous-red-text), var(--accent-deep));
    transform: scaleX(0);
    transform-origin: left center;
    will-change: transform;
  }

  .mous-mini-book__rail {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: .36rem;
    margin-top: .9rem;
  }

  .mous-mini-book__rail button {
    width: 22px;
    height: 22px;
    display: grid;
    place-items: center;
    padding: 0;
    border: 0;
    background: transparent;
  }

  .mous-mini-book__rail button::before {
    content: "";
    width: 6px;
    height: 6px;
    border: 1px solid var(--border-standard);
    border-radius: 50%;
    background: transparent;
    transition: width var(--fast), border-radius var(--fast), background-color var(--fast), border-color var(--fast);
  }

  .mous-mini-book__rail button[aria-selected="true"]::before {
    width: 18px;
    border-color: var(--mous-red-text);
    border-radius: 999px;
    background: var(--mous-red);
  }

  .mous-mini-book__rail button:focus-visible {
    outline: 2px solid var(--focus-outer);
    outline-offset: 1px;
    border-radius: 999px;
  }

  .mous-mini-book__help {
    margin: .75rem auto 0;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: .55rem;
    letter-spacing: .04em;
    line-height: 1.5;
    text-align: center;
  }

  .mous-mini-book.is-fallback .mous-mini-book__gesture,
  .mous-mini-book.is-fallback .mous-mini-book__loading {
    display: none !important;
  }

  .mous-mini-book__fallback-gallery {
    width: 100%;
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: min(82vw, 600px);
    gap: .75rem;
    padding: .5rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
  }

  .mous-mini-book__fallback-gallery figure {
    margin: 0;
    scroll-snap-align: center;
    background: #000;
    border: 1px solid var(--mous-stage-edge);
  }

  .mous-mini-book__fallback-gallery img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: contain;
    background: #000;
  }

  .mous-mini-book__fallback-message {
    margin-top: .8rem;
    color: var(--text-muted);
    font-size: .72rem;
    line-height: 1.55;
    text-align: center;
  }

  .booklet-credit-line {
    display: grid;
    justify-items: center;
    gap: .38rem;
    max-width: 760px;
    margin: 1.45rem auto 0;
    color: var(--text-muted);
    font-size: .74rem;
    line-height: 1.55;
    text-align: center;
  }

  .booklet-credit-line strong {
    color: var(--text-strong);
  }

  .booklet-credit-line .button {
    margin-top: .7rem;
  }

  .mous-mini-book:fullscreen,
  .mous-mini-book:-webkit-full-screen {
    width: 100%;
    max-width: none;
    min-height: 100dvh;
    padding: max(1rem, env(safe-area-inset-top)) clamp(.7rem, 2vw, 2rem) max(1rem, env(safe-area-inset-bottom));
    display: grid;
    align-content: center;
    background: var(--canvas);
    overflow: auto;
  }

  .mous-mini-book:fullscreen .mous-mini-book__surface,
  .mous-mini-book:-webkit-full-screen .mous-mini-book__surface {
    width: min(1500px, 100%);
    margin-inline: auto;
  }

  .mous-mini-book:fullscreen .mous-mini-book__stage,
  .mous-mini-book:-webkit-full-screen .mous-mini-book__stage {
    min-height: min(78dvh, 780px);
  }

  @keyframes mous-spin {
    to { transform: rotate(1turn); }
  }

  @media (max-width: 760px) {
    .mous-mini-book__surface {
      padding: .55rem;
    }

    .mous-mini-book__stage {
      min-height: clamp(420px, 126vw, 660px);
      padding-inline: 0;
    }

    .mous-mini-book__desktop {
      display: none;
      opacity: 0;
      pointer-events: none;
    }

    .mous-mini-book__mobile {
      display: block;
      opacity: 1;
      pointer-events: auto;
    }

    .mous-mini-book__static-cover {
      width: min(82%, 480px);
    }

    .mous-mini-book__toolbar {
      grid-template-columns: 1fr auto 1fr;
      gap: .45rem;
      padding-inline: .45rem;
    }

    .mous-mini-book__toolbar-group {
      gap: .2rem;
    }

    .mous-mini-book__status {
      min-width: 92px;
    }

    .mous-mini-book__mode {
      display: none;
    }

    .mous-mini-book__control {
      min-width: 40px;
      min-height: 40px;
      padding: .48rem;
    }

    .mous-mini-book__rail {
      gap: .18rem;
    }
  }

  @media (max-width: 470px) {
    .mous-mini-book__toolbar-group:last-of-type .mous-mini-book__control[data-mous-restart] {
      display: none;
    }

    .mous-mini-book__position {
      font-size: 1rem;
    }

    .mous-mini-book__label {
      max-width: 12ch;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
  }

  @media (hover: hover) and (pointer: fine) {
    .mous-mini-book__stage {
      cursor: grab;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    .mous-mini-book {
      --mous-turn-time: 1ms;
    }

    .mous-mini-book__leaf,
    .mous-mini-book__mobile-leaf,
    .mous-mini-book__desktop,
    .mous-mini-book__gesture,
    .mous-mini-book__control,
    .mous-mini-book__rail button::before {
      transition-duration: 1ms !important;
      animation-duration: 1ms !important;
    }

    .mous-mini-book__spinner {
      animation: none;
    }
  }
}

@layer print {
  @media print {
    .booklet-experience {
      display: none !important;
    }
  }
}