/*
  css/component-feedback.css
  Feedback section — full-width timed carousel.

  Layout:
    · 12-col page-grid
    · Col 1      : label (top) + timer segments (bottom)
    · Cols 3–12  : overflow-clipped viewport → sliding card track

  Behaviour (JS-driven):
    · Auto-advances every DURATION ms
    · Active segment fills left→right via CSS animation
    · Hovering or focusing inside the section pauses the timer
    · Clicking a segment jumps to that card
    · Drag/swipe left/right advances or goes back
    · prefers-reduced-motion: no animation, segment fill instant
*/

/* ─── Typography scale ───────────────────────────────────────────── */

:root {
  --typography-feedback-quote: 16px;
  --typography-feedback-cite:  var(--typography-mono);
}

@media (max-width: 480px) {
  :root {
    --typography-feedback-cite: 12px;
  }
}

/* ─── Section layout ─────────────────────────────────────────────── */

/* Meta column + viewport sit in the 12-col page-grid */
.feedback__meta {
  grid-column: 1 / 2;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-10);
  padding-block: var(--space-1);
}

.feedback__title {
  margin: 0;
  text-transform: uppercase;
}

.feedback__viewport {
  grid-column: 3 / -1;
  overflow: visible; /* track extends past viewport; section clips at page edge */
  clip-path: inset(0 -9999px 0 0); /* block left bleed into title/bar column; right overflow free */
}

.feedback__track {
  display: flex;
  gap: var(--space-4);
  will-change: transform;
  touch-action: pan-y; /* allow vertical page scroll; horizontal is handled by JS */
  transition: transform 500ms cubic-bezier(0.22, 1, 0.36, 1);
}

/* ─── Timer bar ──────────────────────────────────────────────────── */

.feedback__bar {
  width: 100%;
  height: 4px;
  background: rgba(9, 7, 13, 0.1);
  overflow: hidden;
}

.feedback__bar-fill {
  height: 100%;
  width: 0%;
  background: var(--color-neutral-fg-strong);
  transform-origin: left center;
}

/* ─── Cards ──────────────────────────────────────────────────────── */

.feedback-card {
  --card-pixel-step: 10px;

  flex: 0 0 var(--feedback-card-width, 320px);
  margin: 0;
  padding: var(--space-10);
  box-sizing: border-box;

  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-6);
  min-height: 360px;

  background-color: var(--color-neutral-fg-strong);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;

  /* Pixel-step corners — same pattern as other components */
  clip-path: polygon(
    0 var(--card-pixel-step),
    var(--card-pixel-step) var(--card-pixel-step),
    var(--card-pixel-step) 0,
    calc(100% - 3 * var(--card-pixel-step)) 0,
    calc(100% - 3 * var(--card-pixel-step)) var(--card-pixel-step),
    calc(100% - 2 * var(--card-pixel-step)) var(--card-pixel-step),
    calc(100% - 2 * var(--card-pixel-step)) calc(2 * var(--card-pixel-step)),
    calc(100% - var(--card-pixel-step)) calc(2 * var(--card-pixel-step)),
    calc(100% - var(--card-pixel-step)) calc(3 * var(--card-pixel-step)),
    100% calc(3 * var(--card-pixel-step)),
    100% 100%,
    0 100%
  );
}

/* Quote icon */
.feedback-card__quote-icon {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  color: var(--color-neutral-bg);
}

.feedback-card__quote-icon--figma-orient {
  transform: rotate(180deg) scaleY(-1);
  transform-origin: center center;
}

/* Quote body */
.feedback-card__quote {
  margin: 0;
  flex: 1;
}

.feedback-card__quote p {
  margin: 0;
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: var(--font-weight-light);
  font-size: var(--typography-feedback-quote);
  line-height: var(--line-height-normal);
  letter-spacing: var(--letter-spacing-body);
  color: var(--color-neutral-bg);
}

/* Attribution */
.feedback-card__source {
  display: flex;
  align-items: flex-start;
}

.feedback-card__source cite {
  font-family: var(--font-serif);
  font-style: normal;
  font-weight: var(--font-weight-light);
  font-size: var(--typography-feedback-cite);
  line-height: var(--line-height-normal);
  letter-spacing: var(--letter-spacing-body);
  color: rgba(254, 250, 241, 0.6); /* --color-neutral-bg at 60% */
}

/* ─── Drag state ─────────────────────────────────────────────────── */

.section--feedback.is-dragging {
  user-select: none;
  -webkit-user-select: none;
  cursor: grabbing;
}

/* ─── Responsive ─────────────────────────────────────────────────── */

@media (max-width: 1024px) {
  /* Scale section padding down to match .section--about at this breakpoint */
  .section--feedback {
    padding-block: var(--space-10);
  }

  .feedback__meta {
    grid-column: 1 / 3;
  }

  .feedback__viewport {
    grid-column: 3 / -1;
  }

  .feedback-card {
    --feedback-card-width: 280px;
    padding: var(--space-6);
    min-height: 320px;
  }
}

@media (max-width: 768px) {
  /* Let cards overflow visually on mobile — viewport handles its own scroll */
  .section--feedback {
    overflow: visible;
  }

  /* On mobile: meta sits above the track, both full-width */
  .feedback__meta {
    grid-column: 1 / -1;
    flex-direction: row;
    align-items: center;
    gap: var(--space-6);
    padding-bottom: var(--space-4);
  }

  .feedback__bar {
    flex: 1;
    max-width: 120px;
    height: 3px;
  }

  .feedback__viewport {
    grid-column: 1 / -1;
    /* Bleed to the page edges so cards are fully visible */
    margin-inline: calc(-1 * var(--grid-margin));
    padding-inline: var(--grid-margin);
    /* Native horizontal scroll on touch */
    overflow-x: auto;
    overflow-y: visible;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    /* Hide scrollbar */
    scrollbar-width: none;
  }

  .feedback__viewport::-webkit-scrollbar {
    display: none;
  }

  .feedback__track {
    /* On mobile the track scrolls natively; JS transform not applied */
    will-change: auto;
    transition: none;
  }

  .feedback-card {
    --feedback-card-width: calc(100vw - var(--grid-margin) * 2 - var(--space-4));
    scroll-snap-align: start;
    min-height: 280px;
    padding: var(--space-6);
  }
}

@media (max-width: 480px) {
  .feedback-card {
    --card-pixel-step: 6px;
    padding: var(--space-4);
  }
}

/* ─── Reduced motion ─────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  .feedback__bar-fill {
    transition: none;
  }

  .feedback__track {
    transition: none;
  }
}