:root {
  --bg: #0f1115;
  --card: #181b22;
  --line: #2a2f3a;
  --text: #e8eaf0;
  --muted: #8b93a5;
  --accent: #4f8cff;
  --accent-hover: #6ba0ff;
  --ok: #3ecf8e;
  --err: #ff6b6b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.screen { min-height: 100vh; padding: 24px; }
.hidden { display: none !important; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}

.narrow {
  max-width: 380px;
  margin: 80px auto 0;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}
.topbar h1 { margin: 0; font-size: 22px; }

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
@media (max-width: 900px) { .grid { grid-template-columns: 1fr; } }

h1, h2 { color: var(--text); }
h2 { font-size: 16px; margin: 16px 0 10px; }
h2:first-child { margin-top: 0; }
.muted { color: var(--muted); font-size: 13px; }
.error { color: var(--err); min-height: 1em; font-size: 13px; }

input[type=password], input[type=text], textarea {
  width: 100%;
  background: #0f1115;
  border: 1px solid var(--line);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 8px;
  font: inherit;
  resize: vertical;
}
textarea { font-family: inherit; }

button {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  margin-top: 10px;
}
button:hover:not(:disabled) { background: var(--accent-hover); }
button:disabled { opacity: 0.45; cursor: not-allowed; }
button.big { padding: 14px 20px; font-size: 16px; width: 100%; margin-top: 16px; }

.drop {
  display: block;
  border: 2px dashed var(--line);
  border-radius: 10px;
  padding: 40px 16px;
  text-align: center;
  color: var(--muted);
  cursor: pointer;
  transition: 0.15s;
}
.drop.hover, .drop:hover { border-color: var(--accent); color: var(--text); }

.preview {
  display: block;
  margin: 14px auto 0;
  max-width: 100%;
  max-height: 320px;
  border-radius: 8px;
  border: 1px solid var(--line);
}

.caption-block { margin: 14px 0; }
.caption-block label { display: block; margin-bottom: 6px; }
.caption-block input[type=checkbox] { margin-right: 6px; }

.pills { display: flex; gap: 6px; flex-wrap: wrap; }
.pill {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid var(--line);
}
.pill.ok { color: var(--ok); border-color: var(--ok); }
.pill.bad { color: var(--err); border-color: var(--err); }

#post-result { margin-top: 14px; }
.result-row {
  padding: 8px 12px;
  border-radius: 6px;
  margin-bottom: 6px;
  font-size: 13px;
  border: 1px solid var(--line);
}
.result-row.ok { border-color: var(--ok); color: var(--ok); }
.result-row.bad { border-color: var(--err); color: var(--err); }
.result-row a { color: inherit; text-decoration: underline; margin-left: 8px; }

.history { display: flex; flex-direction: column; gap: 12px; }
.history-item {
  display: flex;
  gap: 12px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.history-item img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 6px;
  flex: 0 0 80px;
}
.history-item .meta { font-size: 12px; color: var(--muted); }