/**
 * AP Live — Creator Experience Phase 3 polish layer
 * Motion / spacing / type / empty / error / a11y — no layout redesign.
 */

:root {
  --ap-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ap-ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ap-dur-fast: 160ms;
  --ap-dur: 240ms;
  --ap-dur-slow: 360ms;
  --ap-space-1: 4px;
  --ap-space-2: 8px;
  --ap-space-3: 12px;
  --ap-space-4: 16px;
  --ap-space-5: 24px;
  --ap-space-6: 32px;
  --ap-touch: 44px;
  --ap-text-xs: 11px;
  --ap-text-sm: 13px;
  --ap-text-md: 15px;
  --ap-text-lg: 18px;
  --ap-text-xl: 22px;
  --ap-line: 1.45;
  --ap-radius: 14px;
}

/* ---- Motion: standardized interaction feedback ---- */
.social-like-pop,
.ap-follow-pop,
.ap-reel-heart-burst {
  animation-timing-function: var(--ap-ease) !important;
}

.social-like-pop {
  animation-duration: var(--ap-dur) !important;
}

.ap-follow-pop {
  animation-duration: var(--ap-dur-fast) !important;
}

.social-act-btn,
.social-reel-action,
.social-feed-scope-btn,
.ap-creator-follow-btn,
.creator-follow-btn,
.creator-chat-btn,
.creator-tab,
.social-comment-input-row button {
  transition:
    transform var(--ap-dur-fast) var(--ap-ease),
    background var(--ap-dur) var(--ap-ease),
    color var(--ap-dur) var(--ap-ease),
    opacity var(--ap-dur-fast) var(--ap-ease),
    box-shadow var(--ap-dur) var(--ap-ease);
}

.social-act-btn:active,
.social-reel-action:active,
.social-feed-scope-btn:active,
.ap-creator-follow-btn:active,
.creator-follow-btn:active {
  transform: scale(0.94);
}

.social-post-card {
  transition: box-shadow var(--ap-dur) var(--ap-ease), transform var(--ap-dur) var(--ap-ease);
}

.ap-fade-out {
  opacity: 0;
  transition: opacity var(--ap-dur-fast) var(--ap-ease);
}

.ap-fade-in {
  animation: ap-fade-in var(--ap-dur) var(--ap-ease);
}

@keyframes ap-fade-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---- Spacing rhythm ---- */
.social-post-feed {
  padding: 0 var(--ap-space-4) calc(88px + env(safe-area-inset-bottom, 0px));
}

.social-post-card {
  margin-bottom: var(--ap-space-4);
  border-radius: var(--ap-radius);
}

.social-post-meta {
  padding: var(--ap-space-2) var(--ap-space-4) 0;
  font-size: var(--ap-text-xs);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #a16207;
  text-transform: none;
}

.social-post-actions {
  display: flex;
  align-items: center;
  gap: var(--ap-space-1);
  padding: var(--ap-space-2) var(--ap-space-3);
  min-height: var(--ap-touch);
}

.social-act-btn {
  min-width: var(--ap-touch);
  min-height: var(--ap-touch);
  padding: var(--ap-space-2) var(--ap-space-3);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: var(--ap-text-sm);
  font-weight: 700;
  color: #6b4f10;
  border-radius: 999px;
}

.social-post-user {
  padding: var(--ap-space-2) var(--ap-space-4) var(--ap-space-4);
  display: flex;
  flex-direction: column;
  gap: var(--ap-space-2);
}

.social-post-caption {
  font-size: var(--ap-text-sm);
  line-height: var(--ap-line);
  color: #78350f;
  font-weight: 500;
  -webkit-line-clamp: 4;
}

.social-feed-scope {
  gap: var(--ap-space-2);
  padding: var(--ap-space-2) var(--ap-space-4) var(--ap-space-3);
}

.social-feed-scope-btn {
  min-height: 36px;
  padding: 8px 16px;
  font-size: var(--ap-text-xs);
  letter-spacing: 0.02em;
}

/* ---- Typography hierarchy ---- */
.ap-creator-name {
  font-size: var(--ap-text-sm);
  font-weight: 800;
  line-height: 1.25;
  color: #6b4f10;
}

.ap-reel-handle {
  font-weight: 800;
  letter-spacing: 0.01em;
}

.social-reel-caption {
  font-size: var(--ap-text-sm) !important;
  line-height: var(--ap-line) !important;
  max-height: 4.4em;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.social-reel-name {
  font-size: var(--ap-text-md) !important;
  font-weight: 800 !important;
  line-height: 1.3 !important;
}

.ap-discover-title {
  font-size: var(--ap-text-sm);
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #6b4f10;
  margin: 0 var(--ap-space-4) var(--ap-space-2);
}

/* ---- Loading / shimmer ---- */
.social-skeleton-media,
.social-skeleton-reel,
.social-skeleton-line,
.ap-discover-rails--loading .ap-discover-skel {
  background: linear-gradient(
    90deg,
    #f5e6c8 0%,
    #fffdf8 45%,
    #f5e6c8 90%
  );
  background-size: 200% 100%;
  animation: ap-shimmer 1.35s ease infinite;
}

@keyframes ap-shimmer {
  0% { background-position: 100% 0; }
  100% { background-position: -100% 0; }
}

.social-post-card--skeleton {
  margin-bottom: var(--ap-space-4);
  border-radius: var(--ap-radius);
  overflow: hidden;
  border: 1px solid rgba(201, 162, 39, 0.12);
}

/* ---- Empty + error ---- */
.social-empty-state--feed,
.ap-empty,
.ap-error-state {
  margin: var(--ap-space-4) var(--ap-space-4) calc(80px + env(safe-area-inset-bottom, 0px));
  padding: var(--ap-space-6) var(--ap-space-5);
  border-radius: 18px;
  border: 1px solid rgba(201, 162, 39, 0.22);
  background:
    radial-gradient(120% 80% at 50% 0%, rgba(251, 191, 36, 0.12), transparent 55%),
    #fffdf8;
}

.social-empty-state--feed h3,
.ap-empty h3,
.ap-error-state h3 {
  font-size: var(--ap-text-lg);
  font-weight: 800;
  color: #6b4f10;
  margin: 0 0 var(--ap-space-2);
}

.social-empty-state--feed p,
.ap-empty p,
.ap-error-state p {
  font-size: var(--ap-text-sm);
  line-height: var(--ap-line);
  color: #8b6914;
  margin: 0 0 var(--ap-space-4);
  max-width: 28ch;
  margin-left: auto;
  margin-right: auto;
}

.social-empty-state--feed .illus,
.ap-empty .illus,
.ap-error-state .illus {
  font-size: 36px;
  width: auto;
  margin-bottom: var(--ap-space-3);
  color: #c9a227;
  opacity: 1;
}

.ap-error-state .illus {
  color: #b45309;
}

.social-empty-state .btn-open,
.ap-empty-cta,
.ap-retry-btn {
  min-height: var(--ap-touch);
  min-width: 140px;
  padding: 12px 28px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  font-size: var(--ap-text-sm);
  font-weight: 800;
  background: linear-gradient(135deg, #fbbf24, #c9a227);
  color: #1a1000;
  box-shadow: 0 6px 16px rgba(201, 162, 39, 0.28);
}

.ap-retry-btn {
  background: linear-gradient(135deg, #f59e0b, #d97706);
}

/* Reel empty on dark video chrome */
.social-reel-empty {
  background: transparent !important;
  border: none !important;
  color: #f5e6c8 !important;
}
.social-reel-empty h3 { color: #fffdf8 !important; }
.social-reel-empty p { color: rgba(255, 253, 248, 0.75) !important; }
.social-reel-empty .illus { color: #fbbf24 !important; }

/* ---- Comment sheet: animatable open (no display toggle flash) ---- */
.social-comment-sheet {
  display: flex !important;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity var(--ap-dur) var(--ap-ease),
    visibility var(--ap-dur) var(--ap-ease);
  background: rgba(26, 16, 0, 0.42);
  padding-bottom: 0;
  z-index: 1400;
}

.social-comment-sheet.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.social-comment-panel {
  padding: var(--ap-space-3) var(--ap-space-4) calc(var(--ap-space-4) + env(safe-area-inset-bottom, 0px));
  transform: translateY(110%);
  transition: transform var(--ap-dur-slow) var(--ap-ease);
  max-height: min(72vh, 640px);
}

.social-comment-sheet.open .social-comment-panel {
  transform: translateY(0);
}

.social-comment-head {
  font-size: var(--ap-text-md);
  font-weight: 800;
  color: #6b4f10;
}

.social-comment-head button {
  min-width: var(--ap-touch);
  min-height: var(--ap-touch);
  border: none;
  background: transparent;
  color: #8b6914;
  font-size: 18px;
  border-radius: 50%;
}

.social-comment-item {
  padding: var(--ap-space-3) 0;
  font-size: var(--ap-text-sm);
  line-height: var(--ap-line);
  color: #78350f;
  animation: ap-fade-in var(--ap-dur) var(--ap-ease);
}

.social-comment-empty {
  text-align: center;
  padding: var(--ap-space-5) var(--ap-space-3);
  color: #8b6914;
  font-size: var(--ap-text-sm);
}

.social-comment-input-row input {
  min-height: var(--ap-touch);
  font-size: 16px; /* iOS zoom prevention */
  padding: 12px 16px;
}

.social-comment-input-row button {
  min-height: var(--ap-touch);
  min-width: 72px;
}

.social-comment-reply-hint[hidden] {
  display: none !important;
}

/* ---- Identity consistency ---- */
.ap-creator-identity {
  gap: var(--ap-space-3);
}

.ap-creator-avatar {
  width: 42px;
  height: 42px;
  border-width: 2px;
}

.ap-creator-follow-btn,
.creator-follow-btn,
.creator-chat-btn {
  min-height: 40px;
  min-width: 96px;
  padding: 8px 18px;
  font-size: var(--ap-text-sm);
}

.ap-creator-agency,
.ap-creator-level {
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ap-creator-name {
  word-break: break-word;
}

/* ---- Discovery polish ---- */
.ap-discover-rails {
  padding: var(--ap-space-2) 0 var(--ap-space-3);
}

.ap-discover-section {
  margin-bottom: var(--ap-space-3);
}

.ap-discover-title {
  margin-left: 20px;
  margin-right: 20px;
}

.ap-discover-row {
  gap: var(--ap-space-3);
  padding: 0 20px var(--ap-space-2);
  scroll-padding-inline: 20px;
  scroll-snap-type: x proximity;
}

.ap-discover-card {
  flex: 0 0 112px;
  width: 112px;
  border-radius: var(--ap-radius);
  scroll-snap-align: start;
  transition: transform var(--ap-dur-fast) var(--ap-ease), box-shadow var(--ap-dur) var(--ap-ease);
}

.ap-discover-card:active {
  transform: scale(0.97);
}

.ap-discover-card img,
.ap-discover-fallback {
  height: 140px;
}

.ap-discover-thumb-wrap {
  height: 140px;
}

.ap-discover-name {
  font-size: var(--ap-text-xs);
  font-weight: 800;
  padding: 8px 8px 2px;
}

.ap-discover-meta {
  font-size: 10px;
  padding: 0 8px 10px;
}

.ap-discover-empty {
  margin: 0 20px;
  padding: var(--ap-space-3);
  border-radius: 12px;
  background: rgba(201, 162, 39, 0.08);
  font-size: var(--ap-text-xs);
  color: #8b6914;
}

/* ---- Profile polish ---- */
.creator-bio {
  margin: var(--ap-space-2) var(--ap-space-5) 0;
  font-size: var(--ap-text-sm);
  line-height: var(--ap-line);
  color: #78350f;
  max-width: 36ch;
  margin-left: auto;
  margin-right: auto;
}

.creator-tabs {
  margin: var(--ap-space-3) var(--ap-space-4) 0;
}

.creator-tab {
  min-height: var(--ap-touch);
  font-size: var(--ap-text-sm);
}

.creator-engagement-card strong {
  font-size: var(--ap-text-lg);
}

.creator-engagement-card span {
  font-size: 10px;
}

.creator-featured {
  margin: var(--ap-space-3) var(--ap-space-4);
  transition: transform var(--ap-dur-fast) var(--ap-ease), box-shadow var(--ap-dur) var(--ap-ease);
}

.creator-featured:active {
  transform: scale(0.985);
}

/* ---- Infinite scroll ---- */
.ap-feed-sentinel {
  height: 1px;
  width: 100%;
  pointer-events: none;
  visibility: hidden;
}

.ap-feed-end {
  text-align: center;
  color: #8b6914;
  font-size: 13px;
  padding: 20px 16px 32px;
  margin: 0;
}

/* Post / reel gift picker (live-style catalog) */
.ap-post-gift-sheet {
  position: fixed;
  inset: 0;
  z-index: 12000;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
.ap-post-gift-sheet[hidden] {
  display: none !important;
}
.ap-post-gift-panel {
  width: 100%;
  max-width: 480px;
  max-height: min(72vh, 560px);
  background: #fffdf8;
  border-radius: 20px 20px 0 0;
  padding: 14px 14px calc(16px + env(safe-area-inset-bottom, 0px));
  box-shadow: 0 -12px 40px rgba(60, 45, 10, 0.18);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.ap-post-gift-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}
.ap-post-gift-head h3 {
  margin: 0;
  font-size: 18px;
  color: #6b4f10;
}
.ap-post-gift-to {
  margin: 4px 0 0;
  font-size: 13px;
  color: #8b6914;
}
.ap-post-gift-close {
  border: none;
  background: #f5e6c8;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 22px;
  line-height: 1;
  color: #6b4f10;
  cursor: pointer;
}
.ap-post-gift-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  overflow-y: auto;
  max-height: 42vh;
  padding: 2px;
}
.ap-post-gift-item {
  border: 1.5px solid #ead9b0;
  border-radius: 14px;
  background: #fff;
  padding: 10px 4px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  cursor: pointer;
  min-height: 84px;
}
.ap-post-gift-item.is-selected {
  border-color: #c9a227;
  background: #fff8e1;
  box-shadow: 0 0 0 2px rgba(201, 162, 39, 0.25);
}
.ap-post-gift-item .g {
  font-size: 26px;
  line-height: 1;
}
.ap-post-gift-item .n {
  font-size: 10px;
  font-weight: 700;
  color: #6b4f10;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ap-post-gift-item .c {
  font-size: 10px;
  color: #a16207;
  font-weight: 700;
}
.ap-post-gift-balance {
  margin: 0;
  text-align: center;
  font-size: 13px;
  color: #8b6914;
}
.ap-post-gift-send {
  border: none;
  border-radius: 14px;
  background: linear-gradient(135deg, #f5c842, #c9a227);
  color: #3b2a08;
  font-weight: 800;
  font-size: 16px;
  padding: 14px;
  cursor: pointer;
}
.ap-post-gift-send:disabled {
  opacity: 0.6;
  cursor: wait;
}

.social-search-user--identity {
  display: block;
  padding: 8px 0;
}

.social-search-user--identity .ap-creator-identity {
  width: 100%;
}

/* ---- Analytics empty ---- */
.streamer-top-content .ap-empty,
#streamerTopContent .ap-muted {
  font-size: var(--ap-text-sm);
  color: #8b6914;
  text-align: center;
  padding: var(--ap-space-4);
}

.streamer-analytics-grid .metric {
  min-height: 72px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* ---- Accessibility ---- */
.social-act-btn:focus-visible,
.social-reel-action:focus-visible,
.social-feed-scope-btn:focus-visible,
.ap-creator-follow-btn:focus-visible,
.creator-tab:focus-visible,
.ap-retry-btn:focus-visible,
.social-comment-input-row button:focus-visible,
.social-comment-input-row input:focus-visible {
  outline: 2px solid #c9a227;
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Long username / caption safety */
.ap-creator-meta,
.social-post-user-name,
.ap-reel-handle {
  overflow-wrap: anywhere;
}

/* Delete / media controls touch */
.social-post-delete,
.social-feed-sound-btn {
  min-width: 40px;
  min-height: 40px;
}

.social-live-pill {
  min-height: 22px;
  padding: 3px 8px;
}