*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  color-scheme: dark;
  --bg: #000000;
  --border: #2f3336;
  --text: #e7e9ea;
  --muted: #71767b;
  --accent: #1d9bf0;
  --hover: rgba(231, 233, 234, 0.08);
  --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.45);
  --media-bg: #16181c;
  --header-bg: rgba(0, 0, 0, 0.75);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.layout {
  max-width: 600px;
  margin: 0 auto;
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
  min-height: 100vh;
}

.top-bar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 12px 16px 10px;
}

.top-inner {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo {
  font-size: 1.5rem;
  line-height: 1;
  color: var(--accent);
}

.title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.tagline {
  margin: 4px 0 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.feed {
  padding-bottom: 48px;
}

.post {
  border-bottom: 1px solid var(--border);
  padding: 12px 16px 14px;
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 10px 12px;
  transition: background 0.12s ease;
}

.post:hover {
  background: var(--hover);
}

.avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, #7c2d12, #9d174d, #0369a1);
  flex-shrink: 0;
}

.post-body {
  min-width: 0;
}

.post-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 8px;
  margin-bottom: 4px;
}

.display-name {
  font-weight: 700;
  font-size: 0.95rem;
}

.handle,
.dot,
.time {
  color: var(--muted);
  font-size: 0.9rem;
}

.dot::before {
  content: "·";
  margin: 0 2px;
}

.post-text {
  margin: 0 0 10px;
  font-size: 0.95rem;
  line-height: 1.45;
}

.media-wrap {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--card-shadow);
  background: var(--media-bg);
}

.media-wrap img {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: middle;
}

.actions {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-top: 10px;
  max-width: 425px;
  color: var(--muted);
  font-size: 0.82rem;
}

.actions button {
  border: none;
  background: none;
  padding: 4px 0;
  color: inherit;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font: inherit;
}

.actions button:hover {
  color: var(--accent);
}

.sentinel {
  height: 1px;
  margin: 0;
}

.load-hint {
  text-align: center;
  padding: 8px 16px 24px;
  font-size: 0.85rem;
  color: var(--muted);
}

.load-hint.error {
  color: #f7878c;
}

.skeleton {
  animation: pulse 1.2s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.45;
  }
  50% {
    opacity: 0.9;
  }
}