/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy: #1a2744;
  --navy-light: #243461;
  --red: #9b2335;
  --red-light: #c0392b;
  --bg: #f5f3ee;
  --surface: #ffffff;
  --border: #d4cfc5;
  --text: #2c2c2c;
  --text-muted: #6b6560;
  --digital: #1a6b3a;
  --digital-bg: #e8f5ed;
  --ndl: #7b2d00;
  --ndl-bg: #fdf0e8;
  --catalog: #1a4b8c;
  --catalog-bg: #e8f0fb;
  --unknown: #5a5a5a;
  --unknown-bg: #ebebeb;
  --nabunken: #00695c;
  --nabunken-bg: #e0f2f1;
  --radius: 6px;
  --shadow: 0 2px 8px rgba(0,0,0,.10);
}

body {
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP",
               "BIZ UDPGothic", "Yu Gothic UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== Header ===== */
header {
  background: var(--navy);
  color: #fff;
  padding: 18px 24px;
  box-shadow: 0 3px 10px rgba(0,0,0,.25);
}
.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
h1 {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: .03em;
}
.header-sub {
  font-size: .82rem;
  color: #b0bcd4;
  margin-top: 2px;
}
.header-source {
  display: block;
  margin-top: 5px;
  font-size: .72rem;
  color: rgba(255,255,255,0.7);
  text-decoration: underline;
  text-decoration-color: rgba(255,255,255,0.3);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}
.header-source:hover { color: #fff; text-decoration-color: rgba(255,255,255,0.8); }
.legend {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.header-links {
  margin-left: auto;
  display: flex;
  gap: 14px;
  align-items: center;
}
.header-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  font-size: .8rem;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 14px;
  padding: 3px 10px;
  transition: color .15s, border-color .15s, background .15s;
}
.header-link:hover {
  color: #fff;
  border-color: rgba(255,255,255,0.7);
  background: rgba(255,255,255,0.1);
}

/* ===== Badges ===== */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .02em;
  white-space: nowrap;
}
.badge-digital  { background: var(--digital-bg);  color: var(--digital); }
.badge-ndl      { background: var(--ndl-bg);     color: var(--ndl); }
.badge-catalog  { background: var(--catalog-bg); color: var(--catalog); }
.badge-unknown  { background: var(--unknown-bg); color: var(--unknown); }

/* ===== Main layout ===== */
main {
  display: flex;
  flex: 1;
  gap: 0;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  padding: 20px 16px;
}

/* ===== Filter panel ===== */
.filter-panel {
  width: 220px;
  flex-shrink: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  height: fit-content;
  position: sticky;
  top: 16px;
  box-shadow: var(--shadow);
}
.filter-panel h2 {
  font-size: .85rem;
  font-weight: 700;
  color: var(--navy);
  border-bottom: 2px solid var(--navy);
  padding-bottom: 6px;
  margin-bottom: 14px;
  letter-spacing: .05em;
}
.filter-panel label {
  display: block;
  font-size: .75rem;
  font-weight: 600;
  color: var(--text-muted);
  margin: 12px 0 4px;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.filter-panel input[type="search"],
.filter-panel select,
.filter-panel input[type="number"] {
  width: 100%;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: .85rem;
  font-family: inherit;
  color: var(--text);
  background: #faf9f7;
  outline: none;
  transition: border-color .15s;
}
.filter-panel input:focus,
.filter-panel select:focus {
  border-color: var(--navy-light);
  box-shadow: 0 0 0 2px rgba(26,39,68,.12);
}

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .82rem;
  font-weight: 400;
  color: var(--text);
  text-transform: none;
  letter-spacing: 0;
  margin: 4px 0;
  cursor: pointer;
}
.checkbox-group input[type="checkbox"] {
  width: auto;
  accent-color: var(--navy);
}

.year-range {
  display: flex;
  align-items: center;
  gap: 4px;
}
.year-range input { width: 70px; }
.year-range span { color: var(--text-muted); flex-shrink: 0; }

#reset-btn {
  width: 100%;
  margin-top: 16px;
  padding: 7px;
  background: var(--navy);
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: .82rem;
  font-family: inherit;
  cursor: pointer;
  transition: background .15s;
}
#reset-btn:hover { background: var(--navy-light); }

.result-count {
  margin-top: 10px;
  font-size: .78rem;
  color: var(--text-muted);
  text-align: center;
}

/* ===== Table section ===== */
.table-section {
  flex: 1;
  min-width: 0;
  margin-left: 16px;
}
.table-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  flex-wrap: wrap;
  font-size: .8rem;
  color: var(--text-muted);
}
.table-controls select {
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: .82rem;
  font-family: inherit;
  background: var(--surface);
  cursor: pointer;
}
.sort-label, .per-page-label { font-weight: 600; }

.table-wrap {
  overflow-x: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: .82rem;
}
thead {
  background: var(--navy);
  color: #fff;
}
th {
  padding: 10px 10px;
  text-align: left;
  font-weight: 600;
  font-size: .78rem;
  letter-spacing: .03em;
  white-space: nowrap;
}
td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
tbody tr:hover { background: #f0eee8; }
tbody tr:last-child td { border-bottom: none; }

.col-no    { width: 48px; }
.col-status{ width: 90px; }
.col-pref  { width: 90px; }
.col-title { min-width: 240px; }
.col-author{ width: 160px; }
.col-year  { width: 70px; }
.col-links { width: 110px; }

.title-cell {
  line-height: 1.4;
}
.title-main {
  font-weight: 600;
  color: var(--navy);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.title-main:hover { color: var(--red-light); }
.title-sub {
  font-size: .75rem;
  color: var(--text-muted);
  margin-top: 1px;
}

.link-btn {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 3px;
  font-size: .7rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  margin: 1px 0;
  border: 1px solid currentColor;
  transition: background .12s, color .12s;
}
.link-btn:hover { opacity: .8; }
.link-ndl      { color: var(--catalog); }
.link-digital  { color: var(--digital); }
.link-nabunken { color: var(--nabunken); }

.links-cell { display: flex; flex-direction: column; gap: 3px; }

/* ===== Pagination ===== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  margin-top: 16px;
  flex-wrap: wrap;
}
.page-btn {
  padding: 5px 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 4px;
  cursor: pointer;
  font-size: .78rem;
  font-family: inherit;
  color: var(--text);
  transition: background .12s;
}
.page-btn:hover { background: var(--bg); }
.page-btn.active {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
  font-weight: 700;
}
.page-btn:disabled {
  opacity: .4;
  cursor: default;
}
.page-ellipsis {
  padding: 5px 6px;
  color: var(--text-muted);
  font-size: .78rem;
}

/* ===== Modal ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}
.modal-overlay.hidden { display: none; }
.modal-box {
  background: var(--surface);
  border-radius: var(--radius);
  max-width: 640px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 28px;
  position: relative;
  box-shadow: 0 8px 40px rgba(0,0,0,.3);
}
.modal-close {
  position: absolute;
  top: 12px;
  right: 14px;
  background: none;
  border: none;
  font-size: 1.1rem;
  cursor: pointer;
  color: var(--text-muted);
  padding: 4px 8px;
  border-radius: 4px;
}
.modal-close:hover { background: var(--bg); }

.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 6px;
  line-height: 1.4;
  padding-right: 28px;
}
.modal-subtitle {
  font-size: .85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.modal-grid {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 6px 12px;
  font-size: .82rem;
  margin-bottom: 18px;
}
.modal-grid dt {
  color: var(--text-muted);
  font-weight: 600;
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  padding-top: 2px;
}
.modal-grid dd { word-break: break-all; }
.modal-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.modal-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 14px;
  border-radius: 4px;
  font-size: .82rem;
  font-weight: 600;
  text-decoration: none;
  transition: opacity .12s;
}
.modal-link-btn:hover { opacity: .8; }
.modal-link-ndl {
  background: var(--catalog-bg);
  color: var(--catalog);
  border: 1px solid var(--catalog);
}
.modal-link-digital {
  background: var(--digital-bg);
  color: var(--digital);
  border: 1px solid var(--digital);
}
.modal-link-nabunken {
  background: var(--nabunken-bg);
  color: var(--nabunken);
  border: 1px solid var(--nabunken);
}

/* ===== Footer ===== */
footer {
  background: var(--navy);
  color: #8a9ab8;
  text-align: center;
  padding: 14px;
  font-size: .75rem;
}

/* ===== Loading ===== */
#loading {
  text-align: center;
  padding: 60px;
  color: var(--text-muted);
  font-size: 1rem;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  main { flex-direction: column; padding: 12px; }
  .filter-panel { width: 100%; position: static; }
  .table-section { margin-left: 0; margin-top: 12px; }
  .col-author, .col-links { display: none; }
  .header-links { margin-left: 0; width: 100%; }
}