:root {
  --bg: #f4f7fb;
  --card: #ffffff;
  --ink: #1a2a33;
  --muted: #4d6775;
  --line: #d8e2ea;
  --accent: #0f6b8f;
  --accent-soft: #e4f4fb;
  --warning: #8a5a14;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at top right, #e8f6ff 0%, var(--bg) 45%, #eef3f8 100%);
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
}

h1 { margin: 0; font-size: 1.35rem; }
.subtitle { margin: 0.2rem 0 0; color: var(--muted); font-size: 0.9rem; }
.layout { max-width: 980px; margin: 1.5rem auto; padding: 0 1rem 2rem; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
  margin-bottom: 1rem;
  box-shadow: 0 8px 30px rgba(9, 43, 58, 0.06);
}

.hidden { display: none; }
.notice {
  margin-bottom: 1rem;
  border: 1px solid #efdfbf;
  background: #fff7e9;
  color: var(--warning);
  border-radius: 12px;
  padding: 0.75rem 0.9rem;
}

.search-row { display: flex; gap: 0.5rem; }
.search-row input {
  flex: 1;
  min-width: 180px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.55rem 0.65rem;
}
button {
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
  padding: 0.5rem 0.8rem;
  cursor: pointer;
}
button.ghost {
  border-color: var(--line);
  color: var(--ink);
  background: #fff;
}
.error { color: #a81634; }

.downloads ul,
#directory-results ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.downloads li,
#directory-results li {
  border: 1px solid var(--line);
  border-radius: 10px;
  margin-bottom: 0.6rem;
  padding: 0.75rem;
}

.row-title {
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.meta {
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 720px) {
  .topbar { align-items: flex-start; flex-direction: column; }
  .search-row { flex-direction: column; }
}