@import url("./tokens.css");
@import url("./utilities.css");

body.read-preview,
body.read-preview *,
body.read-preview *::before,
body.read-preview *::after,
.read-swipe,
.read-swipe *,
.read-swipe *::before,
.read-swipe *::after {
  box-sizing: border-box;
}

body.read-preview {
  min-height: 100%;
  margin: var(--space-0);
  color: var(--color-text);
  background: var(--color-surface);
  font-family: var(--font-sans);
  font-size: var(--text-md);
  line-height: var(--leading-normal);
}

body.read-preview button,
.read-swipe button {
  font: inherit;
}

body.read-preview .preview-page {
  min-height: 100dvh;
  padding: var(--space-4);
  display: grid;
  place-items: center;
  gap: var(--space-4);
}

body.read-preview .preview-stage {
  inline-size: min(100%, var(--shell-width));
  block-size: min(var(--shell-height), calc(100dvh - var(--space-12)));
  min-block-size: calc(var(--shell-height) / 2);
  overflow: hidden;
  display: grid;
  grid-template-rows: var(--header-height) minmax(0, 1fr);
  border: calc(var(--space-1) / 4) solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  box-shadow: var(--shadow-md);
}

body.read-preview .preview-shell__header {
  min-inline-size: 0;
  padding-inline: var(--space-3);
  display: grid;
  grid-template-columns: var(--header-height) minmax(0, 1fr) var(--header-height);
  align-items: center;
  gap: var(--space-2);
  border-bottom: calc(var(--space-1) / 4) solid var(--color-divider);
  background: var(--color-surface-raised);
}

body.read-preview .preview-shell__back {
  inline-size: var(--header-height);
  block-size: var(--header-height);
  padding: var(--space-0);
  border: var(--space-0);
  color: var(--color-text);
  background: transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-decelerate),
    background-color var(--duration-fast) var(--ease-standard);
}

body.read-preview .preview-shell__back:active {
  transform: scale(0.97);
}

body.read-preview .preview-shell__header-skeleton {
  inline-size: 42%;
  block-size: var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--color-skeleton);
}

body.read-preview .preview-controls {
  inline-size: min(100%, var(--shell-width));
  padding: var(--space-2);
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  border: calc(var(--space-1) / 4) solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface-raised);
}

body.read-preview .preview-controls button {
  min-block-size: var(--header-height);
  padding-inline: var(--space-4);
  border: calc(var(--space-1) / 4) solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-text-secondary);
  background: var(--color-surface);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-decelerate),
    color var(--duration-fast) var(--ease-standard),
    background-color var(--duration-fast) var(--ease-standard);
}

body.read-preview .preview-controls button:active {
  transform: scale(0.97);
}

body.read-preview .preview-controls button[aria-pressed="true"] {
  color: var(--color-text-inverse);
  background: var(--color-accent);
}

.read-swipe {
  --read-swipe-threshold: calc(var(--space-12) + var(--space-3));
  --read-snap-duration: var(--duration-base);
  --read-snap-ease: var(--ease-standard);

  position: relative;
  min-inline-size: 0;
  min-block-size: 0;
  block-size: 100%;
  overflow: hidden;
  isolation: isolate;
  background: var(--color-bg);
}

.read-swipe__progress {
  position: absolute;
  z-index: var(--z-header);
  inset-block-start: var(--space-0);
  inset-inline: var(--space-0);
  min-block-size: var(--space-10);
  padding: var(--space-3) var(--space-4) var(--space-2);
  display: flex;
  gap: var(--space-2);
  background: var(--color-surface-raised);
  border-bottom: calc(var(--space-1) / 4) solid var(--color-divider);
  transition: opacity var(--duration-fast) var(--ease-standard);
}

.read-swipe__segment {
  position: relative;
  flex: 1 1 0;
  min-block-size: var(--space-4);
  padding: var(--space-0);
  border: var(--space-0);
  border-radius: var(--radius-pill);
  background: transparent;
  cursor: pointer;
}

.read-swipe__segment::before {
  content: "";
  position: absolute;
  inset-inline: var(--space-0);
  inset-block-start: 50%;
  block-size: var(--space-1);
  border-radius: var(--radius-pill);
  background: var(--color-accent-weak);
  transform: translateY(-50%);
  transition: background-color var(--duration-fast) var(--ease-standard),
    transform var(--duration-fast) var(--ease-decelerate);
}

.read-swipe__segment.is-complete::before,
.read-swipe__segment[aria-current="step"]::before {
  background: var(--color-accent);
}

.read-swipe__segment:active::before {
  transform: translateY(-50%) scale(0.97);
}

.read-swipe__viewport {
  position: absolute;
  inset: var(--space-0);
  overflow-y: auto;
  overscroll-behavior: contain;
  scroll-snap-type: y proximity;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  background: var(--color-bg);
}

.read-swipe__viewport::-webkit-scrollbar {
  display: none;
}

.read-card {
  position: relative;
  min-block-size: 100%;
  padding: calc(var(--space-10) + var(--space-4)) var(--space-4) var(--space-8);
  display: flex;
  flex-direction: column;
  scroll-snap-align: start;
  border-bottom: calc(var(--space-1) / 4) solid var(--color-divider);
  background: var(--color-bg);
}

.read-card__content {
  inline-size: 100%;
  max-inline-size: var(--shell-width);
  margin-inline: auto;
  display: grid;
  gap: var(--space-4);
}

.read-card__eyebrow,
.read-card__title,
.read-card__line,
.read-card__metric-line,
.read-card__hint-line {
  display: block;
  border-radius: var(--radius-pill);
  background: var(--color-skeleton);
}

.read-card__eyebrow {
  inline-size: 28%;
  block-size: var(--space-2);
}

.read-card__title-group {
  display: grid;
  gap: var(--space-2);
}

.read-card__title {
  inline-size: 82%;
  block-size: var(--space-5);
}

.read-card__title:last-child {
  inline-size: 56%;
}

.read-card__line-group {
  display: grid;
  gap: var(--space-2);
}

.read-card__line {
  inline-size: 100%;
  block-size: var(--space-3);
}

.read-card__line:nth-child(2) {
  inline-size: 88%;
}

.read-card__line:nth-child(3) {
  inline-size: 64%;
}

.read-card__metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.read-card__metric {
  min-block-size: calc(var(--space-12) * 2);
  padding: var(--space-3);
  display: grid;
  align-content: center;
  gap: var(--space-3);
  border: calc(var(--space-1) / 4) solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.read-card__metric-line {
  inline-size: 48%;
  block-size: var(--space-2);
}

.read-card__metric-line:last-child {
  inline-size: 76%;
  block-size: var(--space-4);
}

.read-card__block {
  min-block-size: calc(var(--space-12) * 2);
  padding: var(--space-4);
  display: grid;
  align-content: center;
  gap: var(--space-3);
  border: calc(var(--space-1) / 4) solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.read-card__hint {
  margin-block-start: auto;
  padding-block-start: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  color: var(--color-text-tertiary);
}

.read-card__hint-line {
  inline-size: 32%;
  block-size: var(--space-2);
}

.read-card__hint-mark {
  color: var(--color-text-secondary);
  font-size: var(--text-lg);
  line-height: var(--leading-tight);
}

.read-kline {
  margin: var(--space-0);
  padding: var(--space-3);
  display: grid;
  gap: var(--space-2);
  border: calc(var(--space-1) / 4) solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.read-kline svg {
  display: block;
  inline-size: 100%;
  aspect-ratio: 16 / 7;
}

.read-kline__grid line {
  stroke: var(--color-divider);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.read-kline__wick {
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.read-kline__candle.is-up .read-kline__wick {
  stroke: var(--color-up);
}

.read-kline__candle.is-up .read-kline__body {
  fill: var(--color-up);
}

.read-kline__candle.is-down .read-kline__wick {
  stroke: var(--color-down);
}

.read-kline__candle.is-down .read-kline__body {
  fill: var(--color-down);
}

.read-kline__candle.is-flat .read-kline__wick {
  stroke: var(--color-flat);
}

.read-kline__candle.is-flat .read-kline__body {
  fill: var(--color-flat);
}

.read-swipe__state {
  position: absolute;
  z-index: var(--z-push);
  inset: var(--space-0);
  padding: var(--space-6);
  display: grid;
  place-items: center;
  background: var(--color-bg);
}

.read-swipe__state[hidden] {
  display: none;
}

.read-swipe__state-card {
  inline-size: min(100%, calc(var(--shell-width) - var(--space-12)));
  min-block-size: calc(var(--space-12) * 3);
  padding: var(--space-6);
  display: grid;
  place-items: center;
  gap: var(--space-4);
  border: calc(var(--space-1) / 4) solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.read-swipe__spinner {
  inline-size: var(--space-8);
  block-size: var(--space-8);
  border: var(--space-1) solid var(--color-skeleton);
  border-block-start-color: var(--color-accent);
  border-radius: var(--radius-pill);
  animation: read-spin var(--duration-slow) var(--ease-standard) infinite;
}

.read-swipe__empty-mark {
  inline-size: var(--space-12);
  block-size: var(--space-12);
  border: var(--space-1) solid var(--color-skeleton);
  border-radius: var(--radius-lg);
  background: var(--color-skeleton-shimmer);
}

.read-swipe__state-lines {
  inline-size: 76%;
  display: grid;
  justify-items: center;
  gap: var(--space-2);
}

.read-swipe__state-lines span {
  inline-size: 100%;
  block-size: var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--color-skeleton);
}

.read-swipe__state-lines span:last-child {
  inline-size: 58%;
}

.read-swipe[data-state="loading"] .read-swipe__progress,
.read-swipe[data-state="empty"] .read-swipe__progress {
  opacity: 0;
  pointer-events: none;
}

.read-swipe[data-position="first"] .read-card:first-child,
.read-swipe[data-position="last"] .read-card:last-child {
  background: var(--color-surface-raised);
}

.read-swipe__viewport:focus-visible,
.read-swipe__segment:focus-visible,
body.read-preview .preview-shell__back:focus-visible,
body.read-preview .preview-controls button:focus-visible {
  outline: var(--space-1) solid var(--color-focus);
  outline-offset: calc(var(--space-1) * -1);
}

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

@media (hover: hover) and (pointer: fine) {
  body.read-preview .preview-shell__back:hover,
  body.read-preview .preview-controls button:hover {
    background: var(--color-accent-weak);
  }

  .read-swipe__segment:hover::before {
    background: var(--color-border-strong);
  }
}

@media (prefers-reduced-motion: reduce) {
  .read-swipe__spinner {
    animation: none;
  }

  body.read-preview .preview-shell__back,
  body.read-preview .preview-controls button,
  .read-swipe__progress,
  .read-swipe__segment::before {
    transition-duration: var(--duration-fast);
  }
}