:root {
  --paper: #f6f1e7;
  --ink: #2b2419;
  --cork: #c9a26b;
  --accent: #b5451f;
  --accent-dark: #8f3516;
  --card: #fffdf7;
  --muted: #5c5344;
  --line: #d8cdb8;
  --ok: #2f6b3a;
  --warn: #8a5a00;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 19px;
  line-height: 1.55;
}

.topbar {
  background: var(--accent);
  color: #fffdf7;
  padding: 1.6rem 1.2rem 1.2rem;
  text-align: center;
  border-bottom: 6px solid var(--accent-dark);
}
.topbar h1 {
  margin: 0;
  font-size: 2.1rem;
  letter-spacing: 0.03em;
}
.tagline {
  margin: 0.4rem 0 0;
  font-size: 1.05rem;
}

main {
  max-width: 860px;
  margin: 0 auto;
  padding: 1.4rem 1.2rem 2.5rem;
}

h2 {
  font-size: 1.45rem;
  margin: 1.6rem 0 0.6rem;
  border-bottom: 2px solid var(--line);
  padding-bottom: 0.3rem;
}

.board-status { color: var(--muted); font-size: 1rem; }

.board {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.note {
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 5px solid var(--cork);
  border-radius: 6px;
  padding: 0.9rem 1rem;
  box-shadow: 0 2px 4px rgba(43, 36, 25, 0.12);
  word-wrap: break-word;
  overflow-wrap: anywhere;
}
.note-message {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  white-space: pre-wrap;
}
.note-meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}
.note-meta .note-author { font-weight: bold; }

form label {
  display: block;
  font-weight: bold;
  margin: 1rem 0 0.3rem;
}
input[type="text"], textarea {
  width: 100%;
  font: inherit;
  color: var(--ink);
  background: #fff;
  border: 2px solid var(--line);
  border-radius: 6px;
  padding: 0.6rem 0.7rem;
}
input:focus-visible, textarea:focus-visible, button:focus-visible, a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}
button {
  margin-top: 1.1rem;
  font: inherit;
  font-weight: bold;
  background: var(--accent);
  color: #fffdf7;
  border: none;
  border-radius: 6px;
  padding: 0.75rem 1.6rem;
  font-size: 1.1rem;
  cursor: pointer;
}
button:hover { background: var(--accent-dark); }
button:disabled { opacity: 0.55; cursor: wait; }

.char-count { color: var(--muted); font-size: 0.92rem; margin: 0.35rem 0 0; }
.post-status { min-height: 1.4em; font-size: 1rem; }
.post-status.ok { color: var(--ok); }
.post-status.err { color: var(--accent-dark); }

.banner {
  max-width: 860px;
  margin: 1.2rem auto 0;
  padding: 0.9rem 1.2rem;
  border-radius: 6px;
  font-size: 1rem;
}
.banner-warning {
  background: #fdf3dd;
  border: 2px solid var(--warn);
  color: var(--ink);
}
.banner code { font-size: 0.95em; }

footer {
  max-width: 860px;
  margin: 0 auto;
  padding: 1rem 1.2rem 2rem;
  color: var(--muted);
  font-size: 0.95rem;
  border-top: 2px solid var(--line);
}

@media (max-width: 480px) {
  body { font-size: 18px; }
  .topbar h1 { font-size: 1.7rem; }
  .board { grid-template-columns: 1fr; }
}