/* ===== Global polish ===== */
body.site-body {
  background: var(--bg);
  background-image: var(--bg-pattern);
  background-attachment: fixed;
}

/* ===== Section headers ===== */
.section { margin-bottom: 3.25rem; }
.section--flush-top { margin-top: 1.5rem; }
.section__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: .875rem;
  border-bottom: 1px solid var(--border-light);
}
.section__title {
  margin: 0;
  display: flex;
  align-items: center;
  gap: .55rem;
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 800;
  letter-spacing: -.02em;
}
.section__icon {
  display: inline-grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: .875rem;
  flex-shrink: 0;
}
.section__desc { margin: .35rem 0 0; color: var(--muted); font-size: .9375rem; }
.section__link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .5rem .9rem;
  border-radius: 999px;
  font-size: .8125rem;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-light);
  transition: var(--transition);
}
.section__link:hover {
  background: color-mix(in srgb, var(--primary) 16%, #fff);
  transform: translateX(2px);
}
[dir="rtl"] .section__link:hover { transform: translateX(-2px); }

/* ===== Professional carousel ===== */
.ps-carousel {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--surface-2);
}
.ps-carousel__viewport { overflow: hidden; }
.ps-carousel__track {
  display: flex;
  will-change: transform;
}
.ps-carousel__slide {
  flex: 0 0 100%;
  position: relative;
  aspect-ratio: 16 / 9;
  min-height: 200px;
  max-height: 480px;
  overflow: hidden;
  background: #0b1220;
}
.ps-carousel__slide > a {
  display: block;
  width: 100%;
  height: 100%;
}
.ps-carousel__slide img,
.ps-carousel__slide .media-placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}
/* Media banners only — never apply to comment/avatar carousels */
.ps-carousel--fill .ps-carousel__slide > a,
.ps-carousel--fill .ps-carousel__slide > .ps-carousel__hit,
.ps-carousel--contain .ps-carousel__slide > a,
.ps-carousel--contain .ps-carousel__slide > .ps-carousel__hit {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  padding: 0;
  margin: 0;
  background: transparent;
  cursor: zoom-in;
}
.ps-carousel--fill .ps-carousel__slide img,
.ps-carousel--fill .ps-carousel__slide .media-placeholder {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
/* Show full banner image without cropping */
.ps-carousel--contain .ps-carousel__slide {
  aspect-ratio: 16 / 9;
  min-height: 220px;
  max-height: 560px;
  background: color-mix(in srgb, var(--primary) 22%, #0f172a);
}
.ps-carousel--contain .ps-carousel__slide img,
.ps-carousel--contain .ps-carousel__slide .media-placeholder {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
}
.ps-carousel--contain .ps-carousel__slide::after {
  display: none;
}
.ps-carousel__slide::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(0,0,0,.22) 100%);
  pointer-events: none;
}
.ps-carousel__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: rgba(255,255,255,.92);
  color: var(--text);
  box-shadow: var(--shadow);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: var(--transition);
  backdrop-filter: blur(8px);
}
.ps-carousel__arrow:hover:not(:disabled) {
  background: #fff;
  color: var(--primary);
  transform: translateY(-50%) scale(1.05);
}
.ps-carousel__arrow:disabled { opacity: .35; cursor: default; }
.ps-carousel__arrow--prev { inset-inline-start: 1rem; }
.ps-carousel__arrow--next { inset-inline-end: 1rem; }
.ps-carousel__dots {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: .5rem;
  z-index: 3;
  padding: .35rem .6rem;
  border-radius: 999px;
  background: rgba(15,23,42,.35);
  backdrop-filter: blur(6px);
}
.ps-carousel__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  padding: 0;
  background: rgba(255,255,255,.45);
  cursor: pointer;
  transition: var(--transition);
}
.ps-carousel__dot.is-active {
  width: 22px;
  border-radius: 999px;
  background: #fff;
}
.ps-carousel__counter {
  position: absolute;
  top: 1rem;
  inset-inline-end: 1rem;
  z-index: 3;
  padding: .3rem .65rem;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 700;
  color: #fff;
  background: rgba(15,23,42,.45);
  backdrop-filter: blur(6px);
}
.ps-carousel--single .ps-carousel__counter { display: none; }

/* ===== Course cards (premium) ===== */
.grid-courses {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(272px, 1fr));
  gap: 1.5rem;
}
.course-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xs);
}
.course-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: color-mix(in srgb, var(--primary) 22%, var(--border));
}
.course-card__media {
  aspect-ratio: 16 / 10;
  background: linear-gradient(145deg, var(--primary-light), var(--surface-2));
  position: relative;
  overflow: hidden;
}
.course-card__media img,
.course-card__media .media-placeholder {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  background: #fff;
}
.course-card__media img {
  display: block;
}
.course-card__media .media-placeholder {
  display: grid;
  place-items: center;
}
.course-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(9,34,65,.55) 100%);
  opacity: 0;
  transition: var(--transition);
  z-index: 1;
}
.course-card:hover .course-card__overlay { opacity: 1; }
.course-card__play {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 2;
  opacity: 0;
  transform: scale(.85);
  transition: var(--transition);
  color: #fff;
  font-size: 1.125rem;
}
.course-card__play i {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255,255,255,.22);
  backdrop-filter: blur(4px);
  display: grid;
  place-items: center;
  border: 1px solid rgba(255,255,255,.35);
}
.course-card:hover .course-card__play { opacity: 1; transform: scale(1); }
.course-card__badge {
  position: absolute;
  top: .875rem;
  inset-inline-start: .875rem;
  z-index: 3;
  padding: .35rem .7rem;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .01em;
  background: rgba(255,255,255,.92);
  color: var(--success);
  box-shadow: var(--shadow-xs);
  max-width: calc(100% - 1.75rem);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.course-card__badge--paid {
  background: var(--primary);
  color: #fff;
}
.course-card__badge--price {
  background: rgba(15, 23, 42, .82);
  color: #fff;
  font-variant-numeric: tabular-nums;
}
.course-card__body {
  padding: 1.125rem 1.25rem 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: .65rem;
}
.course-card__title {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 800;
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.course-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  margin-top: auto;
  padding-top: .75rem;
  border-top: 1px solid var(--border-light);
}
.course-card__views {
  font-size: .8125rem;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: .35rem;
}
.course-card__price {
  font-size: .8125rem;
  font-weight: 700;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  text-align: end;
}
.course-card__price--free {
  color: var(--success);
}
.course-card__cta {
  font-size: .8125rem;
  font-weight: 700;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: .3rem;
}

/* ===== PDF file bank ===== */
.pdf-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .875rem;
  width: 100%;
  max-width: none;
  margin-inline: 0;
}
.pdf-list .pdf-doc--tile {
  flex-direction: column;
  height: 100%;
}
.pdf-list .pdf-doc--tile .pdf-doc__cover {
  width: 100%;
  min-height: 0;
  aspect-ratio: 4 / 3;
}
.pdf-list .pdf-doc__main {
  padding: .75rem .8rem .85rem;
  gap: .5rem;
}
.pdf-list .pdf-doc__title {
  font-size: .875rem;
  line-height: 1.35;
  -webkit-line-clamp: 2;
}
.pdf-list .pdf-doc__desc {
  font-size: .75rem;
  line-height: 1.5;
  -webkit-line-clamp: 2;
}
.pdf-list .pdf-doc__previews {
  gap: .35rem;
}
.pdf-list .pdf-doc__preview {
  width: 40px;
  height: 40px;
  border-radius: 6px;
}
.pdf-list .pdf-doc__actions {
  gap: .4rem;
  padding-top: .55rem;
}
.pdf-list .pdf-doc__actions .btn {
  font-size: .75rem;
  padding: .45rem .5rem;
}
.pdf-list .pdf-doc__price {
  top: .5rem;
  inset-inline-end: .5rem;
  padding: .22rem .5rem;
  font-size: .6875rem;
}
.pdf-list .pdf-doc__type {
  inset-inline-start: .5rem;
  bottom: .5rem;
  padding: .15rem .4rem;
  font-size: .625rem;
}
.pdf-list .pdf-doc__cover-fallback {
  min-height: 0;
  font-size: 2rem;
}
.grid-pdfs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: .875rem;
}

/* ===== PDF document cards ===== */
.pdf-doc {
  display: flex;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.pdf-doc:hover {
  border-color: color-mix(in srgb, var(--primary) 22%, var(--border));
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}
.pdf-doc--card {
  flex-direction: column;
}
.pdf-doc--tile {
  flex-direction: row;
  align-items: stretch;
}
.pdf-doc__cover {
  position: relative;
  flex-shrink: 0;
  background: linear-gradient(160deg, var(--surface-2) 0%, color-mix(in srgb, var(--primary) 6%, var(--surface)) 100%);
  overflow: hidden;
}
.pdf-doc--card .pdf-doc__cover {
  aspect-ratio: 4 / 3;
  width: 100%;
}
.pdf-doc--tile .pdf-doc__cover {
  width: 148px;
  min-height: 148px;
}
.pdf-doc__cover > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.pdf-doc__cover-fallback {
  width: 100%;
  height: 100%;
  min-height: 120px;
  display: grid;
  place-items: center;
  color: color-mix(in srgb, var(--primary) 45%, var(--muted));
  font-size: 2.5rem;
}
.pdf-doc__type {
  position: absolute;
  inset-inline-start: .65rem;
  bottom: .65rem;
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .2rem .5rem;
  border-radius: 6px;
  font-size: .6875rem;
  font-weight: 800;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(4px);
}
.pdf-doc__type i {
  color: #dc2626;
  font-size: .75rem;
}
.pdf-doc__price {
  position: absolute;
  top: .65rem;
  inset-inline-end: .65rem;
  padding: .28rem .6rem;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 800;
  line-height: 1.2;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.08);
}
.pdf-doc__price--free {
  color: #15803d;
  background: #ecfdf5;
  border: 1px solid #bbf7d0;
}
.pdf-doc__price--paid {
  color: var(--primary);
  background: #fff;
  border: 1px solid color-mix(in srgb, var(--primary) 25%, var(--border));
}
.pdf-doc__main {
  display: flex;
  flex-direction: column;
  gap: .65rem;
  min-width: 0;
  flex: 1;
  padding: 1rem 1.125rem;
}
.pdf-doc--card .pdf-doc__main {
  padding: 1rem 1rem 1.05rem;
}
.pdf-doc__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.4;
  color: var(--text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.pdf-doc--card .pdf-doc__title {
  font-size: .9375rem;
}
.pdf-doc__desc {
  margin: 0;
  font-size: .8125rem;
  line-height: 1.6;
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.pdf-doc__previews {
  display: flex;
  gap: .45rem;
  overflow-x: auto;
  padding-bottom: .1rem;
  scrollbar-width: thin;
}
.pdf-doc__preview {
  flex: 0 0 auto;
  width: 56px;
  height: 56px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  cursor: zoom-in;
  background: var(--surface-2);
  transition: border-color var(--transition), transform var(--transition);
}
.pdf-doc__preview:hover {
  border-color: var(--primary);
  transform: translateY(-1px);
}
.pdf-doc__preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.pdf-doc__actions {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: .75rem;
  border-top: 1px solid var(--border-light);
}
.pdf-doc__actions .btn {
  flex: 1;
  min-width: 0;
  justify-content: center;
  font-size: .8125rem;
}
.pdf-doc--card .pdf-doc__actions {
  padding-top: .65rem;
}
.pdf-doc--card .pdf-doc__actions .btn {
  font-size: .75rem;
  padding: .5rem .65rem;
}

/* PDF preview lightbox */
.pdf-lightbox {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 280px;
}
.pdf-lightbox__img {
  max-width: 100%;
  max-height: 70vh;
  border-radius: var(--radius-md);
  object-fit: contain;
}
.pdf-lightbox__close {
  position: absolute;
  top: 0;
  inset-inline-end: 0;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  cursor: pointer;
}
.pdf-lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: var(--surface-2);
  cursor: pointer;
  z-index: 2;
}
.pdf-lightbox__nav--prev { inset-inline-start: 0; }
.pdf-lightbox__nav--next { inset-inline-end: 0; }
.pdf-lightbox__counter {
  display: block;
  margin-top: .75rem;
  text-align: center;
  font-size: .8125rem;
  color: var(--muted);
}

/* Fullscreen image gallery */
body.ps-gallery-open { overflow: hidden; }
.ps-gallery[hidden] { display: none !important; }
.ps-gallery {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  background:
    radial-gradient(120% 80% at 50% 40%, rgba(30, 41, 59, .55), rgba(2, 6, 23, .96)),
    #020617;
  animation: ps-gallery-fade .22s ease;
}
@keyframes ps-gallery-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}
.ps-gallery__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  padding: .65rem 1rem;
}
.ps-gallery__zoom {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .25rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .12);
}
.ps-gallery__zoom-btn {
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  background: transparent;
  cursor: pointer;
  transition: background .2s ease;
}
.ps-gallery__zoom-btn:hover:not(:disabled) {
  background: rgba(255, 255, 255, .14);
}
.ps-gallery__zoom-btn:disabled {
  opacity: .35;
  cursor: default;
}
.ps-gallery__zoom-btn--reset {
  border-radius: 10px;
  width: 36px;
}
.ps-gallery__zoom-label {
  min-width: 3.4rem;
  text-align: center;
  font-size: .8rem;
  font-weight: 700;
  color: rgba(255, 255, 255, .9);
  font-variant-numeric: tabular-nums;
}
.ps-gallery__close {
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  background: rgba(255, 255, 255, .08);
  cursor: pointer;
  transition: background .2s ease, transform .2s ease;
}
.ps-gallery__close:hover {
  background: rgba(255, 255, 255, .18);
  transform: scale(1.04);
}
.ps-gallery__main {
  position: relative;
  min-height: 0;
  display: grid;
  place-items: center;
  padding: .25rem 4.5rem .35rem;
  overflow: hidden;
}
.ps-gallery__stage {
  width: 100%;
  height: 100%;
  max-width: min(1280px, 100%);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
}
.ps-gallery__stage.is-zoomed {
  overflow: auto;
  align-items: flex-start;
}
.ps-gallery__img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  object-position: center;
  border-radius: .5rem;
  box-shadow: 0 28px 80px rgba(0, 0, 0, .55);
  user-select: none;
  -webkit-user-drag: none;
  transform-origin: center center;
  transition: transform .15s ease;
  cursor: zoom-in;
  animation: ps-gallery-pop .22s ease;
}
.ps-gallery__stage.is-zoomed .ps-gallery__img {
  cursor: grab;
  transition: none;
}
@keyframes ps-gallery-pop {
  from { opacity: 0; }
  to { opacity: 1; }
}
.ps-gallery__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  background: rgba(255, 255, 255, .1);
  backdrop-filter: blur(10px);
  cursor: pointer;
  z-index: 2;
  transition: background .2s ease, transform .2s ease;
}
.ps-gallery__nav:hover:not(:disabled) {
  background: rgba(255, 255, 255, .2);
  transform: translateY(-50%) scale(1.05);
}
.ps-gallery__nav--prev { inset-inline-start: .85rem; }
.ps-gallery__nav--next { inset-inline-end: .85rem; }
.ps-gallery__nav:disabled {
  opacity: .3;
  cursor: default;
}
.ps-gallery__bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .7rem;
  padding: .65rem 1rem 1.15rem;
  background: linear-gradient(180deg, transparent, rgba(2, 6, 23, .55));
}
.ps-gallery__meta {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: .55rem;
}
.ps-gallery__counter {
  padding: .35rem .8rem;
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 700;
  color: #fff;
  background: rgba(15, 23, 42, .55);
  border: 1px solid rgba(255, 255, 255, .08);
}
.ps-gallery__link {
  padding: .45rem .9rem;
  border-radius: 999px;
  font-size: .8125rem;
  font-weight: 700;
  color: #fff;
  background: color-mix(in srgb, var(--primary) 75%, #000);
  text-decoration: none;
}
.ps-gallery__link:hover { filter: brightness(1.08); }
.ps-gallery__thumbs {
  display: flex;
  gap: .5rem;
  max-width: min(92vw, 720px);
  overflow-x: auto;
  padding: .4rem;
  border-radius: 1rem;
  background: rgba(15, 23, 42, .45);
  border: 1px solid rgba(255, 255, 255, .08);
  scrollbar-width: none;
}
.ps-gallery__thumbs::-webkit-scrollbar { display: none; }
.ps-gallery__thumb {
  flex: 0 0 auto;
  width: 58px;
  height: 58px;
  border: 2px solid transparent;
  border-radius: .7rem;
  padding: 0;
  overflow: hidden;
  background: #0f172a;
  cursor: pointer;
  opacity: .65;
  transition: opacity .2s ease, border-color .2s ease, transform .2s ease;
}
.ps-gallery__thumb:hover { opacity: .9; }
.ps-gallery__thumb.is-active {
  opacity: 1;
  border-color: #fff;
  transform: translateY(-2px);
}
.ps-gallery__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
@media (max-width: 720px) {
  .ps-gallery__main { padding: .25rem 3.2rem .35rem; }
  .ps-gallery__nav { width: 42px; height: 42px; }
  .ps-gallery__img { border-radius: .75rem; }
  .ps-gallery__thumb { width: 48px; height: 48px; }
}

/* ===== Posts feed (Facebook / LinkedIn style) ===== */
.posts-feed {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: none;
  margin-inline: 0;
  width: 100%;
}
.posts-feed__more {
  display: flex;
  justify-content: center;
  margin-top: 1.5rem;
}
.posts-feed__more[hidden] { display: none !important; }
.post-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  transition: var(--transition);
}
.post-item:hover { box-shadow: var(--shadow-sm); }
.post-item__header {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .875rem 1rem;
}
.post-item__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--primary-light);
  color: var(--primary);
  display: grid;
  place-items: center;
  font-size: 1.125rem;
}
.post-item__avatar img { width: 100%; height: 100%; object-fit: cover; }
.post-item__meta { min-width: 0; flex: 1; }
.post-item__author {
  display: block;
  font-size: .9375rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1.3;
}
.post-item__author:hover { color: var(--text); text-decoration: none; }
.post-item__time {
  display: flex;
  align-items: center;
  gap: .3rem;
  margin-top: .15rem;
  font-size: .75rem;
  color: var(--muted);
}
.post-item__text {
  margin: 0;
  padding: 0 1rem .875rem;
  line-height: 1.65;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: .9375rem;
  color: var(--text);
}
.post-item__see-more {
  display: inline;
  margin-inline-start: .25rem;
  padding: 0;
  border: 0;
  background: none;
  color: var(--primary);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.post-item__see-more:hover { text-decoration: underline; }
.post-item__media { background: #0b1220; }
.post-item__media img { width: 100%; display: block; object-fit: cover; }
.post-item__media--single img { max-height: 520px; }
.post-item__media-hit {
  display: block;
  width: 100%;
  height: 100%;
  padding: 0;
  margin: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
  position: relative;
  overflow: hidden;
  line-height: 0;
}
.post-item__media-hit img,
.post-item__media-more {
  pointer-events: none;
}
.post-item__media--duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}
.post-item__media--duo .post-item__media-cell { aspect-ratio: 1; overflow: hidden; }
.post-item__media--duo img { width: 100%; height: 100%; }
.post-item__media--grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}
.post-item__media--grid .post-item__media-cell {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
}
.post-item__media--grid img { width: 100%; height: 100%; }
.post-item__media-more {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(0,0,0,.45);
  color: #fff;
  font-size: 1.5rem;
  font-weight: 800;
  pointer-events: none;
}
.post-item__stats {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  padding: .5rem 1rem .625rem;
  font-size: .8125rem;
  color: var(--muted);
}
.post-item__stat-likes,
.post-item__stat-comments {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  border: none;
  background: transparent;
  padding: 0;
  font: inherit;
  color: inherit;
  cursor: pointer;
}
.post-item__stat-likes:hover,
.post-item__stat-comments:hover { color: var(--primary); text-decoration: underline; }
.post-item__stat-likes i {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #2563eb;
  color: #fff;
  font-size: .5625rem;
  display: grid;
  place-items: center;
}
.post-item__divider {
  height: 1px;
  background: var(--border-light);
  margin: 0 1rem;
}
.post-item__actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .25rem;
  padding: .35rem .5rem .5rem;
}
.post-item__action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  padding: .625rem .5rem;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  font-size: .8125rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}
.post-item__action:hover { background: var(--surface-2); color: var(--text); }
.post-item__action.is-liked { color: #2563eb; }
.post-item__action.is-liked i { color: #2563eb; }

/* Legacy grid (unused on posts page) */
.grid-posts {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 680px;
  margin-inline: auto;
}

/* ===== Planet ratings carousel ===== */
.planet-ratings {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}
.planet-ratings__head { margin-bottom: 1.25rem; }
.planet-ratings__title { font-size: 1.125rem; }
.planet-ratings .ps-carousel__slide { aspect-ratio: auto; min-height: 0; max-height: none; }
.planet-ratings .ps-carousel__slide::after { display: none; }
.planet-rating-card {
  height: 100%;
  min-height: 200px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.35rem;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: .625rem;
  transition: var(--transition);
  box-shadow: var(--shadow-xs);
}
.planet-rating-card:hover {
  border-color: color-mix(in srgb, var(--primary) 25%, var(--border));
  box-shadow: var(--shadow-sm);
}
.planet-rating-card__stars {
  color: #f59e0b;
  font-size: .8125rem;
  letter-spacing: .1em;
}

/* ===== Page title (simple, no banner box) ===== */
.catalog-hero {
  position: relative;
  margin: 0 0 1.15rem;
  padding: 0 0 .85rem;
  border: 0;
  border-radius: 0;
  overflow: visible;
  color: var(--text);
  isolation: auto;
  background: none;
  box-shadow: none;
}
.catalog-hero::before { display: none !important; content: none !important; }
.catalog-hero--back {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: .7rem;
}
.catalog-hero__back {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .35rem .7rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  font-size: .8125rem;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  box-shadow: var(--shadow-xs, 0 1px 2px rgba(15, 23, 42, .06));
  transition: var(--transition);
}
.catalog-hero__back i { font-size: .75rem; color: var(--primary); }
.catalog-hero__back:hover {
  border-color: color-mix(in srgb, var(--primary) 35%, var(--border));
  color: var(--primary);
  background: var(--primary-light);
}
.catalog-hero__inner {
  display: flex;
  align-items: center;
  gap: .75rem;
  width: 100%;
}
.catalog-hero__icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  background: var(--primary-light);
  border: 0;
  color: var(--primary);
  font-size: 1rem;
}
.catalog-hero__title {
  margin: 0;
  font-size: clamp(1.35rem, 2.6vw, 1.75rem);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.3;
  color: var(--text);
}
.catalog-hero__sub {
  margin: .3rem 0 0;
  max-width: 42rem;
  font-size: .9rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ===== Search field with clear ===== */
.search-field {
  position: relative;
  flex: 1;
  min-width: min(100%, 220px);
}
.search-field .input {
  padding-inline-start: 2.65rem;
  padding-inline-end: 2.65rem;
}
.search-field input[type="search"]::-webkit-search-cancel-button {
  -webkit-appearance: none;
  appearance: none;
}
.search-field__icon {
  position: absolute;
  inset-inline-start: .95rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
  font-size: .9rem;
}
.search-field__clear {
  position: absolute;
  inset-inline-end: .55rem;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, .72);
  color: var(--text-secondary);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: var(--transition);
}
.search-field__clear:hover {
  background: var(--border);
  color: var(--text);
}
.search-field__clear[hidden] { display: none !important; }

.filters-bar--stacked {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 1rem;
}
.filters-bar__row {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: .55rem;
}
.filters-bar__label {
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--muted);
  min-width: 0;
  width: 100%;
}
.filters-bar__row .chip-group {
  width: 100%;
}

@media (max-width: 640px) {
  .catalog-hero { padding: 0 0 .75rem; }
  .catalog-hero__inner { align-items: flex-start; }
}

/* ===== Filters bar ===== */
.filters-bar {
  padding: 1.125rem 1.35rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xs);
  background: var(--surface);
}
.chip.is-active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: var(--shadow-xs);
}
.chip.is-active:hover {
  background: var(--primary-dark, var(--primary));
  color: #fff;
  border-color: var(--primary-dark, var(--primary));
}

/* ===== Media placeholders ===== */
.media-placeholder--xs { min-height: 28px; }
.media-placeholder--xs i { font-size: .75rem; }

/* ===== Educational tracking polish ===== */
.edu-subject-card {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xs);
}
.edu-subject-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.edu-tabs, .edu-detail-tabs {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xs);
}
.edu-tab.is-active {
  background: var(--primary);
  color: #fff;
}

/* ===== Account page polish ===== */
.account-profile-card,
.account-menu-list,
.account-tracking-tile {
  box-shadow: var(--shadow-xs);
}
.account-profile-card {
  border-radius: var(--radius-xl);
}

/* ===== Footer polish ===== */
.site-footer {
  background: linear-gradient(180deg, #0b1220 0%, #111827 100%);
}

/* ===== Post dialogs (likes / comments) ===== */
body.ps-modal-open { overflow: hidden; }
.ps-modal[hidden] { display: none !important; }
.ps-modal {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: grid;
  place-items: center;
  padding: 1rem;
}
.ps-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, .55);
  backdrop-filter: blur(2px);
}
.ps-modal__panel {
  position: relative;
  width: min(520px, 100%);
  max-height: min(85vh, 720px);
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: psModalIn .22s ease;
}
@keyframes psModalIn {
  from { opacity: 0; transform: translateY(12px) scale(.98); }
  to { opacity: 1; transform: none; }
}
.ps-modal__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  padding: 1rem 1.125rem;
  border-bottom: 1px solid var(--border-light);
}
.ps-modal__title {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 800;
  flex: 1;
  min-width: 0;
}
.ps-modal__actions {
  display: flex;
  align-items: center;
  gap: .35rem;
  flex-shrink: 0;
}
.ps-modal__expand,
.ps-modal__close {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--text-secondary);
  cursor: pointer;
  display: grid;
  place-items: center;
}
.ps-modal__expand:hover,
.ps-modal__close:hover { background: var(--border-light); color: var(--text); }
.ps-modal__expand[hidden] { display: none !important; }
.ps-modal__body {
  overflow: auto;
  padding: 1rem 1.125rem 1.125rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.ps-modal__panel--video {
  width: min(920px, 100%);
  max-height: min(92vh, 820px);
}
.ps-modal__panel--video-max {
  width: min(1200px, 98vw);
  max-height: 96vh;
  height: 96vh;
}
.ps-modal__panel--video .ps-modal__head,
.ps-modal__panel--video-max .ps-modal__head {
  flex-shrink: 0;
}
.ps-modal__panel--video .ps-modal__body,
.ps-modal__panel--video-max .ps-modal__body {
  padding: 0 1.125rem 1.125rem;
  gap: .75rem;
}
.ps-modal__panel--video-max .ps-modal__body {
  flex: 1;
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.ps-modal__panel--video .video-modal-player,
.ps-modal__panel--video-max .video-modal-player {
  margin-bottom: 0;
}
.ps-modal__panel--video-max .video-modal-player {
  flex: 1 1 auto;
  min-height: 0;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
}
.ps-modal__panel--video-max .ps-yt-lock {
  position: absolute;
  inset: 0;
  height: auto;
  min-height: 0;
  overflow: hidden;
}
/* Keep controls pinned at the bottom when maximized / browser fullscreen */
.ps-modal__panel--video-max .ps-yt-lock__stage,
.ps-yt-lock:fullscreen .ps-yt-lock__stage,
.ps-yt-lock:-webkit-full-screen .ps-yt-lock__stage {
  position: absolute;
  inset: 0 0 46px 0;
  width: auto;
  height: auto;
  aspect-ratio: auto;
  flex: none;
}
.ps-modal__panel--video-max .ps-yt-lock__bar,
.ps-yt-lock:fullscreen .ps-yt-lock__bar,
.ps-yt-lock:-webkit-full-screen .ps-yt-lock__bar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  flex: none;
  z-index: 20;
}
.ps-yt-lock:fullscreen,
.ps-yt-lock:-webkit-full-screen {
  width: 100%;
  height: 100%;
  background: #000;
}
.ps-modal__panel--video-max .video-modal-meta {
  display: none;
}
.video-modal-meta {
  display: flex;
  justify-content: flex-end;
  padding: 0 .25rem;
  flex: 0 0 auto;
}
.ps-actor__avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--primary-light);
  color: var(--primary);
  display: grid;
  place-items: center;
  font-size: 1rem;
}
.ps-actor__avatar img { width: 100%; height: 100%; object-fit: cover; }
.ps-like-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.ps-like-row {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .625rem .75rem;
  border-radius: var(--radius-md);
  background: var(--surface-2);
}
.ps-like-row__meta { flex: 1; min-width: 0; }
.ps-like-row__name {
  display: block;
  font-size: .9375rem;
  font-weight: 700;
  color: var(--text);
}
.ps-like-row__time {
  display: block;
  font-size: .75rem;
  color: var(--muted);
  margin-top: .1rem;
}
.ps-like-row__icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #2563eb;
  color: #fff;
  display: grid;
  place-items: center;
  font-size: .6875rem;
}
.ps-comment-list {
  display: flex;
  flex-direction: column;
  gap: .875rem;
}
.ps-comment-row {
  display: flex;
  align-items: flex-start;
  gap: .625rem;
}
.ps-comment-row__bubble {
  flex: 1;
  min-width: 0;
  background: var(--surface-2);
  border-radius: var(--radius-lg);
  padding: .625rem .75rem;
}
.ps-comment-row--mine .ps-comment-row__bubble {
  background: color-mix(in srgb, var(--primary) 8%, var(--surface-2));
  border: 1px solid color-mix(in srgb, var(--primary) 18%, transparent);
}
.ps-comment-row__head {
  display: flex;
  align-items: baseline;
  gap: .5rem;
  flex-wrap: wrap;
  margin-bottom: .25rem;
}
.ps-comment-row__name {
  font-size: .8125rem;
  font-weight: 800;
  color: var(--text);
}
.ps-comment-row__time {
  font-size: .6875rem;
  color: var(--muted);
}
.ps-comment-row__text {
  margin: 0;
  font-size: .875rem;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text);
}
.ps-comment-row__actions {
  display: flex;
  gap: .75rem;
  margin-top: .5rem;
  padding-top: .35rem;
  border-top: 1px solid var(--border-light);
}
.ps-comment-row__action {
  border: none;
  background: transparent;
  padding: 0;
  font-size: .75rem;
  font-weight: 700;
  color: var(--muted);
  cursor: pointer;
}
.ps-comment-row__action:hover { color: var(--primary); }
.ps-comment-row__action--danger:hover { color: #dc2626; }
.ps-comment-row__edit { margin-top: .5rem; }
.ps-comment-row__edit .input { width: 100%; resize: vertical; min-height: 72px; }
.ps-comment-row__edit-actions {
  display: flex;
  justify-content: flex-end;
  gap: .5rem;
  margin-top: .5rem;
}
.ps-comment-compose {
  display: flex;
  align-items: flex-start;
  gap: .625rem;
  padding-top: .75rem;
  border-top: 1px solid var(--border-light);
  margin-top: auto;
  position: sticky;
  bottom: 0;
  background: var(--surface);
}
.ps-comment-compose__field {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.ps-comment-compose__field .input { resize: vertical; min-height: 64px; }
.ps-comment-compose__field .btn { align-self: flex-end; }
.ps-comment-compose-hint {
  margin: 0;
  padding-top: .75rem;
  border-top: 1px solid var(--border-light);
  font-size: .875rem;
  color: var(--muted);
  text-align: center;
}
.ps-comment-compose-hint a { font-weight: 700; color: var(--primary); }

/* ===== Responsive ===== */
@media (max-width: 1200px) {
  .pdf-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .pdf-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 768px) {
  .ps-carousel__slide { aspect-ratio: 16 / 9; min-height: 180px; }
  .ps-carousel__arrow { width: 38px; height: 38px; }
  .grid-pdfs { grid-template-columns: 1fr; }
  .pdf-doc--tile {
    flex-direction: column;
  }
  .pdf-doc--tile .pdf-doc__cover {
    width: 100%;
    min-height: 0;
    aspect-ratio: 16 / 9;
  }
}
@media (max-width: 560px) {
  .pdf-list { grid-template-columns: 1fr; }
  .pdf-list .pdf-doc__actions {
    flex-direction: column;
  }
  .pdf-list .pdf-doc__actions .btn {
    width: 100%;
  }
}