body {
    font-family: 'Noto Sans JP', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f7f6;
    color: #333;
}

header {
    background-color: #4CAF50;
    color: white;
    padding: 1rem 0;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

main {
    padding: 20px;
    max-width: 1200px;
    margin: 20px auto;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.05);
}

.main-nav {
    display: flex;
    justify-content: center;
    background-color: #e0e0e0;
    padding: 10px 0;
    border-bottom: 1px solid #ccc;
}

.nav-button {
    background-color: #f0f0f0;
    border: none;
    padding: 10px 20px;
    margin: 0 5px;
    cursor: pointer;
    font-size: 1rem;
    border-radius: 5px;
    transition: background-color 0.3s, transform 0.2s;
}

.nav-button:hover {
    background-color: #e5e5e5;
    transform: translateY(-2px);
}

.nav-button.active {
    background-color: #4CAF50;
    color: white;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.app-view {
    display: none;
    padding-top: 20px;
}

.app-view.active {
    display: block;
}

h2 {
    color: #4CAF50;
    border-bottom: 2px solid #4CAF50;
    padding-bottom: 10px;
    margin-top: 0;
    margin-bottom: 20px;
}

/* --- Calendar Specific Styles --- */
.calendar-controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 20px;
    gap: 10px;
}

.calendar-header {
    display: flex;
    align-items: center;
    gap: 15px;
}

#currentPeriod {
    font-size: 1.2rem;
    font-weight: bold;
    color: #555;
}

.nav-button-text {
    background: none;
    border: 1px solid #4CAF50;
    color: #4CAF50;
    padding: 8px 15px;
    cursor: pointer;
    font-size: 0.9rem;
    border-radius: 5px;
    transition: background-color 0.3s, color 0.3s;
}

.nav-button-text:hover {
    background-color: #4CAF50;
    color: white;
}

.view-toggle {
    display: flex; /* Make buttons inside horizontal */
    gap: 5px; /* Add gap between month/week buttons */
}

.view-toggle button {
    background-color: #e0e0e0;
    border: none;
    padding: 8px 15px;
    cursor: pointer;
    font-size: 0.9rem;
    border-radius: 5px;
}

.view-toggle button.active {
    background-color: #007bff;
    color: white;
}

#calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 3px; /* Gap adjusted for more compact look */
    max-width: 100%;
    margin: 0 auto;
}

.day-header {
    text-align: center;
    font-weight: bold;
    padding: 8px 0; /* Adjusted padding */
    background-color: #f0f0f0;
    border-radius: 3px; /* Slightly smaller border-radius */
    font-size: 0.9em; /* Slightly smaller font size */
}

.calendar-day {
    background-color: #f9f9f9;
    border: 1px solid #eee;
    padding: 5px; /* Adjusted padding for more compact cells */
    min-height: 80px; /* Reduced min-height */
    box-sizing: border-box;
    border-radius: 3px; /* Slightly smaller border-radius */
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start; /* Align content to the start (left) */
    overflow: hidden;
    cursor: pointer;
    transition: background-color 0.2s;
}

.calendar-day:hover {
    background-color: #e9e9e9;
}

.calendar-day.inactive {
    background-color: #f0f0f0;
    color: #aaa;
}

.calendar-day.today {
    background-color: #e6ffe6; /* Light green background for today */
    border-color: #4CAF50; /* Green border for today */
}

.date-number {
    font-weight: bold;
    font-size: 1em; /* Ensure good size */
    margin-bottom: 2px; /* Adjusted margin */
    color: #555;
    align-self: flex-start; /* Ensure date number stays at the top-left */
}

.calendar-day.today .date-number {
    color: #4CAF50;
}

.event-indicator {
    background-color: #4CAF50;
    color: white;
    font-size: 0.65rem; /* Smaller font size for events */
    padding: 1px 3px; /* Smaller padding */
    border-radius: 2px; /* Smaller border-radius */
    margin-bottom: 1px; /* Smaller margin between events */
    max-width: 100%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    align-self: flex-start; /* Ensure event indicator stays at the left */
}

.event-list {
    margin-top: 20px;
    padding: 15px;
    background-color: #f9f9f9;
    border: 1px solid #eee;
    border-radius: 8px;
}

.event-list h3 {
    margin-top: 0;
    color: #4CAF50;
    font-size: 1.2rem;
    border-bottom: 1px solid #eee;
    padding-bottom: 10px;
    margin-bottom: 15px;
}

.event-list ul {
    list-style: none;
    padding: 0;
}

.event-list li {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 10px;
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.event-list li:last-child {
    margin-bottom: 0;
}

.event-info {
    flex-grow: 1;
}

.event-info p {
    margin: 0;
    line-height: 1.4;
}

.event-actions {
    display: flex;
    gap: 5px;
}

.event-actions button {
    padding: 8px 12px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.85rem;
}

.edit-event-btn {
    background-color: #007bff;
    color: white;
}

.edit-event-btn:hover {
    background-color: #0056b3;
}

.delete-event-btn {
    background-color: #dc3545;
    color: white;
}

.delete-event-btn:hover {
    background-color: #c82333;
}

#addEditEventForm {
    background-color: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #eee;
    margin-top: 20px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

#addEditEventForm label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: #555;
}

#addEditEventForm input[type="text"],
#addEditEventForm input[type="date"],
#addEditEventForm input[type="time"],
#addEditEventForm select,
#addEditEventForm textarea {
    width: calc(100% - 20px);
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
    font-size: 1rem;
}

#addEditEventForm textarea {
    resize: vertical;
    min-height: 80px;
}

.form-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
}

.primary-button {
    background-color: #4CAF50;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s;
}

.primary-button:hover {
    background-color: #45a049;
}

.cancel-button {
    background-color: #6c757d;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s;
}

.cancel-button:hover {
    background-color: #5a6268;
}

.delete-button {
    background-color: #dc3545;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s;
}

.delete-button:hover {
    background-color: #c82333;
}

/* --- Diary Specific Styles --- */
#diary-view {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.diary-input-area {
    background-color: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #eee;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

#diary-view input[type="date"] {
    width: calc(100% - 20px);
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
    font-size: 1rem;
}

#diary-view textarea {
    width: calc(100% - 40px);
    height: 200px; /* 高さを調整 */
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 20px;
    box-sizing: border-box;
    resize: vertical;
}

#diary-view .form-buttons {
    justify-content: center;
}

.diary-list {
    background-color: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #eee;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.diary-list h3 {
    color: #4CAF50;
    margin-top: 0;
    border-bottom: 1px solid #eee;
    padding-bottom: 10px;
    margin-bottom: 15px;
}

.diary-list ul {
    list-style: none;
    padding: 0;
}

.diary-list-item {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 10px;
    margin-bottom: 10px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.diary-list-item:last-child {
    margin-bottom: 0;
}

.diary-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.diary-item-date {
    font-weight: bold;
    font-size: 1.1rem;
    color: #555;
}

.diary-item-actions button {
    padding: 5px 10px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    margin-left: 5px;
}

.diary-item-actions .load-diary-btn {
    background-color: #007bff;
    color: white;
}
.diary-item-actions .load-diary-btn:hover {
    background-color: #0056b3;
}

.diary-item-actions .delete-diary-btn {
    background-color: #dc3545;
    color: white;
}
.diary-item-actions .delete-diary-btn:hover {
    background-color: #c82333;
}

.diary-item-snippet {
    font-size: 0.9rem;
    color: #666;
    white-space: pre-wrap; /* 改行を保持 */
    margin: 0;
}


/* --- Companies Specific Styles --- */
.company-view-container {
    display: flex;
    gap: 20px;
    min-height: 600px; /* 必要に応じて高さを調整 */
}

.company-list-area {
    flex: 1; /* リスト部分が利用可能なスペースを占める */
    max-width: 400px; /* リスト部分の最大幅を設定 */
    min-width: 300px; /* リスト部分の最小幅を設定 */
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.company-detail-area {
    flex: 2; /* 詳細部分がリストの2倍のスペースを占める */
    display: flex;
    flex-direction: column;
}

#addCompanyBtn {
    width: 100%;
    padding: 12px 20px;
    font-size: 1.1rem;
    margin-bottom: 10px;
}

#companyList {
    display: flex;
    flex-direction: column; /* 企業アイテムを縦に並べる */
    gap: 10px;
    overflow-y: auto; /* リストが長い場合にスクロール可能にする */
    padding-right: 5px; /* スクロールバーのための余白 */
    flex-grow: 1; /* 残りのスペースを埋める */
}

.company-item {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 10px 15px; /* 左右のパディングを調整 */
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
    display: flex;
    flex-direction: column;
    justify-content: space-between; /* 内容を上下に分散 */
}

.company-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.company-item.selected {
    border-color: #4CAF50;
    background-color: #e6ffe6; /* 選択時に背景色を変更 */
    box-shadow: 0 0 10px rgba(76, 175, 80, 0.4);
}

.company-item h4 {
    margin-top: 5px; /* 上部のマージンを少し追加 */
    margin-bottom: 5px;
    color: #333; /* 黒っぽい色に */
    font-size: 1.1rem; /* 少し大きく */
}

.company-item p {
    margin: 0 0 4px 0; /* マージンを調整 */
    font-size: 0.85rem; /* フォントサイズを小さく */
    color: #666;
}

.company-item .star-rating {
    color: #ffc107;
    font-size: 0.9rem; /* 星のサイズを調整 */
    margin-bottom: 5px;
}

.company-item .company-actions {
    display: flex;
    gap: 8px; /* ボタン間のスペースを調整 */
    margin-top: 8px; /* 上部のマージンを調整 */
}

.company-actions button {
    padding: 6px 12px;
    border-radius: 5px; /* 少し丸みを大きく */
    font-size: 0.8rem; /* フォントサイズを小さく */
    flex-grow: 1; /* ボタンが均等な幅になるように */
}

.company-actions .details-btn {
    background-color: #007bff; /* 青色に統一 */
    color: white;
}

.company-actions .details-btn:hover {
    background-color: #0056b3;
}

.company-actions .edit-btn {
    background-color: #6c757d; /* グレーに統一 */
    color: white;
}

.company-actions .edit-btn:hover {
    background-color: #5a6268;
}

/* Company Detail Display */
#company-display-area {
    background-color: #f9f9f9;
    padding: 25px; /* パディングを少し大きく */
    border-radius: 8px;
    border: 1px solid #eee;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08); /* 影を強調 */
    position: relative;
    flex-grow: 1; /* 残りのスペースを埋める */
    display: flex; /* Flexboxを適用 */
    flex-direction: column; /* 要素を縦に並べる */
    gap: 15px; /* 要素間のスペース */
}

#company-display-area h3 {
    color: #4CAF50;
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 1.8rem; /* 企業名を大きく */
    border-bottom: 2px solid #4CAF50; /* 下線を追加 */
    padding-bottom: 10px;
}

#company-display-area .small-button {
    padding: 8px 15px;
    font-size: 0.9rem;
    border-radius: 5px;
}

#closeCompanyDetailBtn {
    position: absolute;
    top: 20px;
    right: 20px;
    background-color: #dc3545;
    color: white;
}

#closeCompanyDetailBtn:hover {
    background-color: #c82333;
}

#editCompanyBtn {
    position: absolute;
    top: 20px;
    right: 100px; /* クローズボタンの隣に配置 */
    background-color: #007bff;
    color: white;
}

#editCompanyBtn:hover {
    background-color: #0056b3;
}

.company-detail-item {
    margin-bottom: 10px;
    font-size: 1.05rem;
    line-height: 1.5;
}

.company-detail-item strong {
    color: #555;
    margin-right: 5px;
}

#companyDisplayURL {
    color: #007bff;
    text-decoration: none;
}

#companyDisplayURL:hover {
    text-decoration: underline;
}

#companyDisplayRemarks {
    white-space: pre-wrap; /* 改行を保持 */
    background-color: #fff;
    border: 1px solid #ddd;
    padding: 10px;
    border-radius: 5px;
    min-height: 80px;
    max-height: 200px;
    overflow-y: auto;
}

#companyRecruitmentEventsList {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 10px;
    max-height: 200px;
    overflow-y: auto;
    margin-bottom: 15px;
}

.recruitment-event-display-item {
    background-color: #f0f8ff; /* 薄い水色 */
    border: 1px solid #b0e0e6;
    border-radius: 5px;
    padding: 8px;
    margin-bottom: 5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
}

.recruitment-event-display-item:last-child {
    margin-bottom: 0;
}

.recruitment-event-display-item span {
    font-weight: bold;
    color: #333;
}

.recruitment-event-display-item .type {
    color: #007bff;
}

.recruitment-event-display-item .date {
    color: #28a745;
}

/* Small calendar specific styles for company detail */
.small-calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
    background-color: #fff;
    border: 1px solid #ddd;
    padding: 5px;
    border-radius: 5px;
    margin-top: 10px;
}

.small-calendar .day-header,
.small-calendar .calendar-day {
    padding: 4px;
    min-height: 40px;
    font-size: 0.75rem;
}

.small-calendar .date-number {
    font-size: 0.85em;
}

.small-calendar .event-indicator {
    font-size: 0.6rem;
    padding: 0 2px;
}

#companyForm {
    background-color: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #eee;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    flex-grow: 1; /* 残りのスペースを埋める */
}

#companyForm label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: #555;
}

#companyForm input[type="text"],
#companyForm input[type="url"],
#companyForm textarea {
    width: calc(100% - 20px);
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
    font-size: 1rem;
}

#companyForm textarea {
    resize: vertical;
    min-height: 60px;
}

#companyForm .star-rating {
    margin-bottom: 15px;
    font-size: 1.3rem; /* フォームの星を少し大きく */
}

#recruitmentEventsContainer .recruitment-event-item {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
    align-items: center;
}

#recruitmentEventsContainer .recruitment-event-item input,
#recruitmentEventsContainer .recruitment-event-item select {
    flex-grow: 1;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 0.9rem;
}

#recruitmentEventsContainer .recruitment-event-item .remove-recruitment-event-btn {
    background-color: #dc3545;
    color: white;
    border: none;
    padding: 6px 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
}

.small-add-button {
    background-color: #28a745;
    color: white;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 0.85rem;
    cursor: pointer;
    border: none;
}

.status-選考中 { background-color: #007bff; }
.status-選考中:hover { background-color: #0056b3; }
.status-一次通過 { background-color: #28a745; }
.status-一次通過:hover { background-color: #218838; }
.status-二次通過 { background-color: #17a2b8; }
.status-二次通過:hover { background-color: #138496; }
.status-最終通過 { background-color: #ffc107; color: #333;}
.status-最終通過:hover { background-color: #e0a800; }
.status-不採用 { background-color: #dc3545; }
.status-不採用:hover { background-color: #c82333; }
.status-内定 { background-color: #6f42c1; }
.status-内定:hover { background-color: #56369f; }

/* Small calendar specific styles for company detail */
.small-calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
}