/* banner */
.banner-img{
  max-width: 75rem;
  margin: 1.5rem auto;
}

.lib-img {
  display: block;
  width: 100%;
  max-width: 75rem;
  height: auto;
  max-height: 25rem;
  margin: 1rem auto;
  padding: 0 1.25rem;
  box-sizing: border-box;
  object-fit: cover;
  filter: brightness(1.1) contrast(0.9);
}

/* -------------------------- */
/* かんたん蔵書検索（Quick Search） */

.user-action-grid {
  display: flex;
  max-width: 75rem;
  margin: 0 auto;
  gap: 1.5rem;
  padding: 0 1.25rem;
}

.user-action-grid .quick-search-section {
  flex: 1; 
  margin: 0;
  padding: 0;
  max-width: none;
}

.user-action-grid .quick-search-card {
  height: 100%; 
  padding: 2rem;
  box-sizing: border-box;
}

.user-action-grid .button-area-login,
.user-action-grid .button-area {
  display: flex;
  flex-direction: column; 
  gap: 1rem;
  width: 100%;
  align-items: center;
}

.user-action-grid .btn-quick-search {
  width: 100%;
  max-width: 23rem;
  min-width: 0;
  margin: 0;
  box-sizing: border-box;
}

.user-action-grid .search-card-body p {
  margin-top: 2rem;
  font-size: 0.9rem;
  text-align: center;
}

.quick-search-section {
  max-width: 75rem; 
  margin: 1.5rem auto;
  padding: 0 1.25rem;
}

.quick-search-card {
  background-color: var(--card-bg);
  color: #333;
  border-radius: 1rem;
  padding: 2.5rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

/* カード上部（アイコンと見出し） */
.search-card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.icon-circle {
  color: var(--primary-blue);
  background-color: #fff;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.icon-circle i {
  color: var(--primary-blue);
  background-color: #fff;
  font-size: 1.5rem;
  -webkit-text-stroke: 0.5px; 
}

.search-card-title {
  font-size: 1.5rem;
  font-weight: bold;
  color: #333;
  background-color: var(--card-bg);
  margin: 0;
}

.search-main-content {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  align-items: center; 
}

.search-form-area {
  width: 100%;
  max-width: 100%;
  padding: 2.5rem;
  color: var(--primary-blue);
  background: #fff;
  border-radius: 1rem;
  box-shadow: 0 2px 15px rgba(0,0,0,0.03);
  box-sizing: border-box;
}

.search-input-row {
  display: flex;
  gap: 0.75rem;
  width: 100%;
}

.input-wrapper {
  flex: 1; 
}

.search-input-field {
  width: 100%;
  height: 3.5rem;
  padding: 0 1.5rem;
  font-size: 1.2rem;
  border: 2px solid #ddd;
  border-radius: 0.75rem;
  box-sizing: border-box;
  transition: all 0.2s;
}

.search-input-field:focus {
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 4px rgba(0, 90, 173, 0.1);
  outline: none;
}

.search-submit-btn {
  width: 8rem;
  height: 3.5rem;
  background-color: var(--primary-blue);
  color: #fff;
  border: none;
  border-radius: 0.75rem;
  font-size: 1.3rem;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.2s;
}

.search-submit-btn:hover {
  background-color: #004a8d;
  color: #fff;
}

/* 詳細検索リンクエリアの再構築 */
.search-support-links {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
}

.support-link {
  font-size: 0.95rem;
  text-decoration: none;
  font-weight: bold;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.support-divider {
  width: 1px;
  height: 1.2rem;
  background-color: #ddd;
}

/* 検索のつかいかた*/
.help-link {
  color: #666;
  border: 1px solid #ddd;
  background-color: #fcfcfc;
}

.help-link:hover {
  background-color: #f0f0f0;
  color: #333;
}

/* 詳細検索*/
.advanced-link {
  color: var(--primary-blue);
  background-color: #f0f7ff;
  border: 1px solid var(--primary-blue);
}

.advanced-link:hover {
  background-color: var(--primary-blue);
  color: #fff;
  box-shadow: 0 2px 6px rgba(0, 90, 173, 0.2);
}

/* -------------------------- */
/* ユーティリティボタン群（新デザイン：グリッド形式） */

.search-utility-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  width: 100%;
}

.util-btn {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  background-color: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 0.75rem;
  padding: 1.25rem 1rem;
  text-decoration: none;
  color: #444;
  transition: all 0.2s;
  box-shadow: 0 2px 4px rgba(0,0,0,0.02);
  flex: 1;
  min-width: 12rem;
  max-width: 20rem;
}

.util-btn i {
  font-size: 1.5rem;
  color: var(--primary-blue);
  background-color: inherit;
}

.util-btn span {
  font-size: 1.05rem;
  font-weight: bold;
  text-align: center;
  line-height: 1.3;
}

.util-btn:hover {
  background-color: #f0f7ff;
  color: inherit;
  border-color: var(--light-blue);
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.08);
}



/* カード下部（ボタンと説明） */
.search-card-body {
  display: block;
  width: 100%;
}

.card-body {
  display: flex;
  align-items: center;
  gap: 2rem;
  width: 100%;
}

.btn-quick-search {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--light-blue);
  color: #333;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1rem;
  padding: 0.75rem 2.5rem;
  border-radius: 0.5rem;
  box-shadow: 0 3px 0 rgba(0,0,0,0.1); 
  transition: all 0.2s ease;
  min-width: 15rem;
}

.btn-quick-search:hover {
  background-color: #89cbe6;
  color: inherit;
  transform: translateY(-1px);
}

.btn-quick-search:active {
  transform: translateY(1px);
  box-shadow: none;
}

.info-area {
  flex: 1;
  min-width: 280px;
}

.search-info-text {
  font-size: 0.95rem;
  color: #555;
  background-color: var(--card-bg);
  margin: 0;
  line-height: 1.5;
  align-items: center;
}

.button-area-login{
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: start; 
}

.btn-login {
  background-color: var(--primary-blue) !important;
  color: #fff !important;
  box-shadow: 0 4px 12px rgba(0, 90, 173, 0.3); 
}

.btn-login:hover {
  background-color: #004a8d !important;
  color: #fff;
  box-shadow: 0 6px 16px rgba(0, 90, 173, 0.4);
}

.f-login {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.sp-only { display: none !important; }

.btn-quick-search:focus {
  outline: 3px solid var(--primary-blue);
  outline-offset: 3px;
}

/* -------------------------- */
/* Index Sub Menu Section */

.index-sub-menu {
  max-width: 75rem; 
  margin: 2rem auto 4rem auto;
  padding: 0 1.25rem;
}

.sub-menu-list {
  display: flex;
  justify-content: center;
  gap: 2rem; 
  list-style: none;
  padding: 0;
  margin: 0;
}

.sub-menu-item {
  flex: 1;
  max-width: 18rem;
}

.sub-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  line-height: 1.3;
  height: 4.8rem;
  padding: 0.5rem 1rem;
  background-color: #f8faff; 
  border: 1px solid #005aad; 
  border-radius: 0.75rem;
  text-decoration: none;
  color: #333;
  font-weight: bold;
  font-size: 1.1rem;
  box-shadow: 0 2px 4px rgba(0,0,0,0.02);
  transition: all 0.2s ease-in-out;
  box-sizing: border-box;
}

.sub-menu-btn:hover {
  background-color: #f0f7ff;
  color: inherit;
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0,0,0,0.08);
}

.sub-menu-btn:active {
  transform: translateY(0);
}

.sub-menu-btn:focus {
  outline: 3px solid #005aad;
  outline-offset: 3px;
}