:root {
  --bg: #0f1117;
  --panel: #171a23;
  --border: #262b38;
  --text: #e6e8ef;
  --muted: #8b93a7;
  --accent: #7c9cff;
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 3rem 1rem;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

main { max-width: 40rem; margin: 0 auto; }

header { margin-bottom: 2rem; }
h1 { margin: 0; font-size: 1.75rem; letter-spacing: -0.02em; }
.tagline { margin: 0.25rem 0 0; color: var(--muted); font-size: 0.9rem; }

.composer {
  display: grid;
  gap: 0.625rem;
  padding: 1rem;
  margin-bottom: 2rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
}

input, textarea {
  width: 100%;
  padding: 0.625rem 0.75rem;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  resize: vertical;
}

input:focus, textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: transparent;
}

button {
  justify-self: start;
  padding: 0.55rem 1.1rem;
  background: var(--accent);
  color: #0f1117;
  border: 0;
  border-radius: 8px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

button:hover { filter: brightness(1.1); }

.posts { display: grid; gap: 0.75rem; }

.post {
  position: relative;
  padding: 1rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.meta {
  display: flex;
  gap: 0.5rem;
  align-items: baseline;
  font-size: 0.8rem;
  color: var(--muted);
}

.meta strong { color: var(--accent); font-size: 0.875rem; }

.body {
  margin: 0.5rem 0 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.post form { position: absolute; top: 0.75rem; right: 0.75rem; }

.delete {
  padding: 0.2rem 0.5rem;
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 500;
}

.delete:hover { color: #ff8b8b; border-color: #ff8b8b; filter: none; }

.empty {
  padding: 2rem;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--border);
  border-radius: 12px;
}