:root {
  --tg-bg: #0e1621;
  --tg-bubble: #182533;
  --tg-text: #e1e1e1;
  --tg-text-dim: #8b98a5;
  --tg-accent: #5288c1;
  --tg-header: #17212b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--tg-bg);
  color: var(--tg-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ─── Шапка ─── */
.header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: var(--tg-header);
  border-bottom: 1px solid #0b131c;
  flex-shrink: 0;
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--tg-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 18px;
  text-transform: uppercase;
  flex-shrink: 0;
}

.header-title .name { font-weight: 600; font-size: 15px; }
.header-title .sub  { font-size: 12px; color: var(--tg-text-dim); }

.logout {
  margin-left: auto;
  color: var(--tg-text-dim);
  text-decoration: none;
  font-size: 13px;
  border: 1px solid #2b3947;
  padding: 6px 10px;
  border-radius: 8px;
}
.logout:hover { color: var(--tg-text); border-color: var(--tg-accent); }

/* ─── Лента ─── */
.feed {
  flex: 1;
  overflow-y: auto;
  padding: 16px 12px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.loader {
  text-align: center;
  color: var(--tg-text-dim);
  font-size: 13px;
  padding: 8px;
}

/* ─── Разделитель дат ─── */
.date-divider { text-align: center; width: 100%; margin: 14px 0 6px; }
.date-divider span {
  background: var(--tg-bubble);
  color: var(--tg-text-dim);
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 12px;
}

/* ─── Пузырь ─── */
.bubble {
  background: var(--tg-bubble);
  border-radius: 12px;
  padding: 8px 10px 6px;
  width: 100%;
  max-width: 520px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.bubble .text {
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 14.5px;
  line-height: 1.4;
  margin-top: 6px;
}
.bubble .text a { color: #6ab3f3; }

.bubble .time {
  text-align: right;
  font-size: 11px;
  color: var(--tg-text-dim);
  margin-top: 4px;
}

/* ─── Сетка медиа (альбомы) ─── */
.media-grid {
  display: grid;
  gap: 3px;
  border-radius: 8px;
  overflow: hidden;
}
.media-grid.count-1 { grid-template-columns: 1fr; }
.media-grid.count-2 { grid-template-columns: 1fr 1fr; }
.media-grid.count-3 { grid-template-columns: 1fr 1fr; }
.media-grid.count-3 .media-item:first-child { grid-column: 1 / -1; }
.media-grid.count-4 { grid-template-columns: 1fr 1fr; }
.media-grid.count-many { grid-template-columns: 1fr 1fr 1fr; }

.media-item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 1;
  background: #0b131c;
}
.media-grid.count-1 .media-item { aspect-ratio: unset; }

.media-item img,
.media-item video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.2s;
}
.media-item:hover img,
.media-item:hover video { transform: scale(1.03); }

/* Иконка "play" поверх видео в сетке */
.media-item .play-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
.media-item .play-icon svg {
  width: 48px;
  height: 48px;
  opacity: 0.85;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.5));
}

/* ─── Аудио / файлы (не в сетке) ─── */
.media-voice {
  width: 100%;
  filter: invert(90%) hue-rotate(180deg);
}
.media-file {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #0e1621;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--tg-text);
  text-decoration: none;
  font-size: 14px;
}
.media-file:hover { background: #131e2b; }

/* ─── Лайтбокс ─── */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}
.lightbox.active { display: flex; }

.lightbox-close {
  position: absolute;
  top: 16px;
  right: 20px;
  background: none;
  border: none;
  color: #fff;
  font-size: 32px;
  cursor: pointer;
  line-height: 1;
  opacity: 0.8;
}
.lightbox-close:hover { opacity: 1; }

.lightbox-content {
  max-width: 95vw;
  max-height: 90vh;
  border-radius: 8px;
  object-fit: contain;
}

@media (max-width: 600px) {
  .bubble { max-width: 100%; }
}