/* screens.css — per-screen layout.
 *
 * Phase 3 establishes the structural layouts (home grid, generic
 * screen spacing). Phase 4 fleshes each screen out against its
 * design reference in design/handoff/screens/.
 */

/* ── Generic content rhythm ────────────────────────────────────*/
.screen__content > * + * {
  margin-top: var(--space-5);
}

.screen__title-block {
  margin-bottom: var(--space-2);
}

/* ── Home ──────────────────────────────────────────────────────*/
.home__greeting {
  margin-top: var(--space-4);
}

.home__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.home__recent {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: var(--space-2);
}

/* ── Generic vertical list (sequences, all movements, favourites) */
.list {
  display: flex;
  flex-direction: column;
}

.form-section + .form-section {
  margin-top: var(--space-5);
}

.form-section__header {
  margin-bottom: var(--space-2);
}

/* ── Move View regions ─────────────────────────────────────────*/
.move__name {
  font-size: var(--font-size-title);
  letter-spacing: var(--letter-spacing-title);
  line-height: var(--line-height-tight);
  margin: 0 0 var(--space-4);
}

.move__hero {
  background: var(--color-surface-raised);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.move__thumbs {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  margin-top: var(--space-3);
}

.move__thumb {
  width: 64px;
  border-radius: var(--radius-md);
  flex: 0 0 auto;
}

.move__thumb[aria-current="true"] {
  box-shadow: var(--ring-selected);
}

.move__phase + .move__phase {
  margin-top: var(--space-4);
}

.move__phase-prose {
  font-size: var(--font-size-cue);
  line-height: var(--line-height-relaxed);
  margin: var(--space-1) 0 0;
}

.move__footer {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-page-x);
  border-top: 1px solid var(--color-border-hairline);
  background: var(--color-background);
}

.move__footer-spacer {
  flex: 1 1 auto;
}

/* ── Image Viewer modal ────────────────────────────────────────*/
.modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  flex-direction: column;
  background: var(--color-surface-raised);
  padding: env(safe-area-inset-top) var(--space-page-x) env(safe-area-inset-bottom);
}

/* ── Settings ──────────────────────────────────────────────────*/
.group {
  margin-top: var(--space-5);
}

.group__card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-hairline);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-card);
  padding: 0 var(--space-4);
}

.group__row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-border-hairline);
}

.group__row:last-child {
  border-bottom: 0;
}

.group__row-body {
  flex: 1 1 auto;
  min-width: 0;
}

.group__row-label {
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-semibold);
}

.group__row-sub {
  font-size: var(--font-size-meta);
  color: var(--color-text-secondary);
  margin-top: 2px;
}

/* ── Placeholder block (Phase 3 only; replaced in Phase 4) ─────*/
.placeholder {
  padding: var(--space-6) 0;
  color: var(--color-text-secondary);
}

.placeholder a {
  color: var(--color-accent);
  text-decoration: underline;
}

/* ── Action cards: consistent bottom-left label ────────────────*/
.action-card {
  align-items: flex-start;
  justify-content: flex-end;
  text-align: left;
}

/* ── Move View: hero carousel ──────────────────────────────────*/
.move__hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: var(--space-4);
}
.move__hero-img {
  width: 100%;
  height: auto;
}
.move__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  border: 1px solid var(--color-border-hairline);
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.move__arrow--prev { left: var(--space-2); }
.move__arrow--next { right: var(--space-2); }
.move__arrow.is-hidden { display: none; }

.move__thumb {
  width: 64px;
  border: 1px solid var(--color-border-hairline);
  background: var(--color-surface-raised);
  overflow: hidden;
  padding: 0;
}
.move__thumb img { width: 100%; }
.move__thumb[aria-current="true"] {
  box-shadow: var(--ring-selected);
  border-color: var(--color-accent);
}

.move__phases { margin-top: var(--space-5); }
.move__section { margin-top: var(--space-5); }
.move__tips {
  margin-top: var(--space-2);
  padding-left: var(--space-4);
  list-style: disc;
}
.move__tips li { margin-top: var(--space-1); }
.move__video { color: var(--color-text-secondary); }

.move__fav {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  border: 1px solid var(--color-border-hairline);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}
.move__fav[aria-pressed="true"] { color: var(--color-accent-favourite); }

/* ── Image Viewer modal ────────────────────────────────────────*/
body.modal-open .tabbar { display: none; }

.viewer__header {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  padding: var(--space-3) 0;
}
.viewer__close {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  border: 1px solid var(--color-border-hairline);
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.viewer__image-area {
  position: relative;
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
}
.viewer__img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.viewer__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  border: 1px solid var(--color-border-hairline);
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.viewer__arrow--prev { left: 0; }
.viewer__arrow--next { right: 0; }
.viewer__arrow.is-hidden { display: none; }
.viewer__caption {
  flex: 0 0 auto;
  text-align: center;
  font-size: var(--font-size-caption);
  color: var(--color-text-secondary);
  padding: var(--space-2) 0;
  margin: 0;
}
.viewer__thumbs {
  flex: 0 0 auto;
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  justify-content: center;
  padding-bottom: var(--space-2);
}
.viewer__thumb {
  flex: 0 0 auto;
  width: 56px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-hairline);
  background: var(--color-surface);
  overflow: hidden;
  padding: 0;
}
.viewer__thumb img { width: 100%; }
.viewer__thumb[aria-current="true"] {
  box-shadow: var(--ring-selected);
  border-color: var(--color-accent);
}

/* ── Favourites empty state ────────────────────────────────────*/
.fav-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-3);
  padding-top: var(--space-8);
}
.fav-empty__star {
  color: var(--color-accent-favourite);
  opacity: 0.3;
}
.reorder-row { gap: var(--space-3); }

/* ── Settings group rows ───────────────────────────────────────*/
.group__row--stack {
  flex-direction: column;
  align-items: stretch;
}
.group__row--button {
  width: 100%;
  background: none;
  text-align: left;
  border-left: 0;
  border-right: 0;
  border-top: 0;
}
.group__row-chevron {
  color: var(--color-text-secondary);
  display: flex;
}
a.group__row { text-decoration: none; }