* { box-sizing: border-box; }
body {
  margin: 0; background: #0d1117; color: #e6edf3;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
header {
  display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap;
  padding: 18px 20px 8px; max-width: 960px; margin: 0 auto;
}
h1 { font-size: 1.5rem; margin: 0; }
h2 { font-size: 1.15rem; margin: 28px 0 10px; }
main { max-width: 960px; margin: 0 auto; padding: 10px 20px 40px; }
main.narrow { max-width: 480px; padding-top: 60px; }
.sub { color: #8b949e; font-size: .95rem; }
.fine { color: #6e7681; font-size: .85rem; }
.who { color: #8b949e; font-size: .9rem; }
a { color: #58a6ff; }
.error { background: #3d1215; border: 1px solid #8b2a2e; color: #ffb3b3; padding: 10px 12px; border-radius: 8px; }

.search-row { display: flex; gap: 10px; margin-top: 12px; }
input[type="search"], input[type="text"], input[type="password"] {
  flex: 1; background: #161b22; border: 1px solid #30363d; color: #e6edf3;
  border-radius: 10px; padding: 12px 14px; font-size: 1rem; outline: none;
}
input:focus { border-color: #58a6ff; }
button {
  background: #238636; color: #fff; border: none; border-radius: 10px;
  padding: 12px 20px; font-size: 1rem; cursor: pointer;
}
button:hover { background: #2ea043; }
label { display: block; margin: 14px 0; color: #c9d1d9; font-size: .95rem; }
label input { width: 100%; margin-top: 6px; }
form button { width: 100%; margin-top: 8px; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; margin-top: 14px; }
.book {
  background: #161b22; border: 1px solid #30363d; border-radius: 12px;
  padding: 0; overflow: hidden; text-align: left; color: #e6edf3; cursor: pointer;
}
.book:hover { border-color: #58a6ff; }
.book img { width: 100%; height: 200px; object-fit: cover; display: block; }
.nocover { height: 200px; display: flex; align-items: center; justify-content: center; font-size: 3rem; background: #21262d; }
.book-info { padding: 10px 12px; }
.book-title { font-weight: 600; font-size: .95rem; line-height: 1.3; }
.book-author { color: #8b949e; font-size: .85rem; margin-top: 4px; }
.owned { color: #3fb950; font-size: .8rem; margin-top: 6px; }

.req {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  background: #161b22; border: 1px solid #30363d; border-radius: 10px;
  padding: 12px 14px; margin-bottom: 8px;
}
.pill { background: #21262d; border-radius: 20px; padding: 2px 10px; font-size: .8rem; color: #8b949e; }
.badge { font-size: .85rem; white-space: nowrap; }
.badge.requested { color: #d29922; }
.badge.downloading { color: #58a6ff; }
.badge.available { color: #3fb950; }

.modal {
  position: fixed; inset: 0; background: rgba(0,0,0,.7);
  display: flex; align-items: center; justify-content: center; padding: 16px; z-index: 10;
}
.modal.hidden { display: none; }
.modal-card {
  background: #161b22; border: 1px solid #30363d; border-radius: 14px;
  max-width: 480px; width: 100%; padding: 22px; position: relative;
  max-height: 90vh; overflow-y: auto;
}
.close { position: absolute; top: 10px; right: 10px; background: #21262d; padding: 8px 12px; }
.modal-cover { width: 140px; border-radius: 8px; display: block; margin-bottom: 12px; }
.desc { color: #c9d1d9; font-size: .95rem; line-height: 1.5; }
.fmt-row { display: flex; gap: 10px; margin-top: 16px; }
.fmt { flex: 1; }
.status { margin-top: 14px; color: #3fb950; min-height: 1.2em; }