:root {
  color-scheme: light;
  --bg: #f3f2ef;
  --card: #ffffff;
  --text: #1f1f1f;
  --muted: #6b6b6b;
  --line: #e0dfdc;
  --accent: #0a66c2;
  --skeleton: #e4e4e4;
  --skeleton-strong: #d9d9d9;
  --media-bg: #fafafa;
  --media-border: #ededed;
  --quote-bg: #fbfbfb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.app-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 32px 40px;
  background: #ffffff;
  border-bottom: 1px solid var(--line);
}

.app-title h1 {
  margin: 0 0 6px;
  font-size: 24px;
}

.app-title p {
  margin: 0;
  color: var(--muted);
}

.upload {
  display: flex;
  align-items: center;
  gap: 16px;
}

.controls {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  flex-wrap: wrap;
}

.upload-button {
  background: var(--accent);
  color: #ffffff;
  padding: 10px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
}

.upload input {
  display: none;
}

.meta {
  color: var(--muted);
  font-size: 14px;
}

.post-input {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 520px;
}

.post-input label {
  font-weight: 600;
  font-size: 14px;
}

.post-input textarea {
  resize: vertical;
  min-height: 140px;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--line);
  font-family: inherit;
  font-size: 14px;
}

.surface-grid {
  padding: 32px 40px 12px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
}

.surface-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(320px, 1fr));
  gap: 24px;
  width: 100%;
}

.surface {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
}

.surface-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
}

.li-shell {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
  width: var(--card-width, 560px);
  max-width: 100%;
  color: var(--text);
}

.li-shell.li-mobile {
  border-radius: 20px;
}

.li-shell.li-wide {
  width: var(--card-width, 720px);
}

.li-header {
  display: flex;
  gap: 12px;
  align-items: center;
}

.li-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--skeleton-strong);
}

.li-avatar.small {
  width: 32px;
  height: 32px;
}

.li-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.li-line {
  height: 10px;
  background: var(--skeleton);
  border-radius: 6px;
  width: 100%;
}

.li-line.short {
  width: 40%;
}

.li-line.long {
  width: 80%;
}

.li-caption {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.li-post-text {
  font-size: 14px;
  line-height: 1.35;
  color: var(--text);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: var(--line-clamp, 3);
  overflow: hidden;
  white-space: pre-wrap;
  position: relative;
  max-height: calc(var(--line-clamp, 3) * 1.35em);
}

.li-post-text.is-truncated::after {
  content: "… ещё";
  position: absolute;
  bottom: 0;
  right: 0;
  padding-left: 8px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0), var(--card) 45%);
  color: var(--muted);
  font-size: 13px;
}

.li-media {
  width: 100%;
  border-radius: 8px;
  background: var(--media-bg);
  border: 1px solid var(--media-border);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 160px;
  position: relative;
}

.li-media::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--media-url);
  background-size: cover;
  background-position: center;
  filter: blur(24px) saturate(120%);
  transform: scale(1.08);
  opacity: 0;
  transition: opacity 120ms ease-in;
}

.li-media.has-image::before {
  opacity: 0.8;
}

.li-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  position: relative;
  z-index: 1;
}

.li-footer {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.li-quote {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--quote-bg);
}

.theme-dark {
  --card: #1f2226;
  --text: #f3f6f8;
  --muted: #a7b0b7;
  --line: #2f3338;
  --accent: #5ca7ff;
  --skeleton: #2f343a;
  --skeleton-strong: #3b4147;
  --media-bg: #111317;
  --media-border: #2b2f35;
  --quote-bg: #1b1e22;
}

.theme-dark .li-media::before {
  opacity: 0.6;
}

.li-quote-header {
  display: flex;
  gap: 10px;
  align-items: center;
}

.notes {
  padding: 12px 40px 48px;
  color: var(--muted);
}

.notes h2 {
  margin: 0 0 12px;
  font-size: 16px;
  color: var(--text);
}

.notes ul {
  margin: 0;
  padding-left: 18px;
}

@media (max-width: 900px) {
  .app-header {
    padding: 24px;
  }

  .surface-grid {
    padding: 24px;
  }

  .surface-pair {
    grid-template-columns: 1fr;
  }

  .notes {
    padding: 12px 24px 40px;
  }
}