/* --- Google Fonts & Material Icons --- */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&display=swap');

/* --- CSS変数 (Design Tokens) --- */
:root {
    --font-family: 'Noto Sans JP', sans-serif;
    --primary-color: #4A90E2;
    --primary-hover: #357ABD;
    --danger-color: #D9534F;
    --danger-hover: #C9302C;
    --background-color: #F5F7FA;
    --surface-color: #FFFFFF;
    --on-surface-color: #2D3748;
    --border-color: #E2E8F0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --border-radius: 8px;
}

body {
    font-family: var(--font-family);
    margin: 0;
    padding: 1rem; /* 全体のパディングを調整 */
    background-color: var(--background-color);
    color: var(--on-surface-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    display: flex;
    justify-content: center;
    align-items: flex-start; /* アプリコンテナを上部に寄せる */
    min-height: 100vh; /* 画面全体を使う */
}

#app-container {
    width: 100%;
    max-width: 400px; /* PCでの最大幅を維持 */
    margin: auto;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    padding: 1rem; /* パディングを調整 */
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 0.75rem;
    flex-wrap: wrap; /* 小さい画面で折り返す */
    gap: 0.5rem; /* 要素間の隙間 */
}
.header-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-grow: 1; /* スペースを埋める */
}
.header-title h1 {
    margin: 0;
    font-size: 1.2em;
    font-weight: 700;
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    justify-content: flex-end; /* 右寄せ */
}

.icon-btn {
    background: transparent;
    border: none;
    padding: 0.4rem;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease;
}
.icon-btn:hover {
    background-color: #E2E8F0;
}
.icon-btn .material-symbols-outlined {
    color: #4A5568;
    font-size: 1.2em;
}

/* --- セクション --- */
.content-section {
    margin-top: 1.25rem;
}
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.6rem;
}
.section-header h3 {
    margin: 0;
    font-size: 0.95em;
    font-weight: 500;
    color: #4A5568;
}

/* --- ボタン --- */
.button {
    font-family: var(--font-family);
    border-radius: var(--border-radius);
    padding: 0.5rem 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85em;
}
.button.primary {
    background-color: var(--primary-color);
    color: white;
}
.button.primary:hover {
    background-color: var(--primary-hover);
}

/* --- 担当者 --- */
.member-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 0.4rem;
    font-size: 0.9em;
}
.member-item input[type="checkbox"] {
    margin-right: 0.4rem;
    flex-shrink: 0;
}
.member-name {
    font-weight: 500;
    flex-shrink: 0;
    cursor: pointer;
}
.checked-time-display {
    font-size: 0.8em;
    color: #4A5568;
    display: flex;
    align-items: center;
    gap: 0.2rem;
    margin-left: 0.6rem;
    flex-grow: 1;
}
.checked-time-display strong {
    font-weight: 700;
}
.checked-time-display .material-symbols-outlined {
    font-size: 0.9em;
    vertical-align: middle;
}
.member-actions {
    display: flex;
    gap: 0.2rem;
    flex-shrink: 0;
}
.time-input {
    width: 40px;
    border: 1px solid #CBD5E0;
    border-radius: 4px;
    padding: 2px 4px;
    text-align: center;
    font-size: 0.85em;
}

/* --- 時刻履歴ポップオーバー --- */
.history-popover {
    position: absolute;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    z-index: 10;
    list-style: none;
    padding: 0.2rem 0;
    margin: 0;
    max-height: 100px;
    overflow-y: auto;
}
.history-popover li {
    padding: 0.3rem 0.6rem;
    cursor: pointer;
    font-size: 0.85em;
}
.history-popover li:hover {
    background-color: #F0F4F8;
}

/* --- タスク --- */
.task-output-item {
    padding: 0.6rem 0.8rem;
    border-bottom: 1px solid var(--border-color);
}
.task-summary {
    display: flex;
    align-items: center;
    cursor: pointer;
}
.task-summary .task-output-text {
    flex-grow: 1;
    font-size: 0.9em;
}
.copy-task-btn {
    background: none;
    border: none;
    font-size: 1.1em;
    padding: 4px;
}

.task-details {
    display: none;
    padding: 0.6rem 0.8rem;
    margin-top: 0.4rem;
    background-color: #F7FAFC;
    border-radius: var(--border-radius);
    font-size: 0.8em;
    line-height: 1.4;
    white-space: pre-wrap;
    word-wrap: break-word;
}

/* --- モーダル --- */
.modal-wrapper {
    display: none; /* Hidden by default */
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.4);
    align-items: flex-start; /* モーダルを上部に寄せる */
    justify-content: center;
    padding-top: 3vh; /* 上からのパディング */
}

.modal-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.modal-content {
    background-color: var(--surface-color);
    margin: auto;
    padding: 1.25rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    width: 90%;
    max-width: 350px;
    position: relative;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid var(--border-color);
}
.modal-header h3 {
    margin: 0;
    font-size: 1em;
}

.form-group {
    margin-bottom: 0.75rem;
}
.form-group label {
    display: block;
    margin-bottom: 0.3rem;
    font-weight: 500;
    font-size: 0.85em;
}
.form-group input[type="text"],
.form-group textarea,
.form-group input[type="date"] {
    width: calc(100% - 14px);
    padding: 0.4rem 0.6rem;
    box-sizing: border-box;
    border: 1px solid #CBD5E0;
    border-radius: 4px;
    font-size: 0.85em;
}
.form-group textarea {
    min-height: 50px;
    resize: vertical;
}

.checkbox-group {
    display: flex;
    align-items: center;
    margin-bottom: 0.6rem;
}
.checkbox-group input[type="checkbox"] {
    margin-right: 0.4rem;
}
.checkbox-group label {
    margin-bottom: 0;
    font-size: 0.85em;
}

#modal-members-radio {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: 0.4rem;
}
.radio-item {
    display: flex;
    align-items: center;
    background-color: #F7FAFC;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.4rem;
    font-size: 0.85em;
}
.radio-item input[type="radio"] {
    margin-right: 0.4rem;
}

#report-output-area {
    margin-top: 1rem;
}
#generated-report-text {
    width: 100%;
    min-height: 80px;
    padding: 0.6rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: #F7FAFC;
    font-size: 0.85em;
    line-height: 1.4;
    resize: vertical;
    box-sizing: border-box;
}
#copy-generated-report-btn {
    width: 100%;
    margin-top: 0.6rem;
}

/* --- マスター管理画面 --- */
#add-member-form,
#add-update-content-form {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}
#new-member-name,
#new-update-content-name {
    flex-grow: 1;
    padding: 0.5rem 0.7rem;
    border: 1px solid #CBD5E0;
    border-radius: 6px;
    font-size: 0.85em;
}
#master-members-list,
#master-update-contents-list {
    list-style: none; padding: 0;
}
#master-members-list li,
#master-update-contents-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 0.8rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9em;
}
#master-members-list li:last-child,
#master-update-contents-list li:last-child { border-bottom: none; }
.delete-member-btn,
.delete-update-content-btn {
    background-color: var(--danger-color);
    color: white;
    padding: 0.3rem 0.6rem;
    font-size: 0.8em;
}
.delete-member-btn:hover,
.delete-update-content-btn:hover { background-color: var(--danger-hover); }

/* --- レスポンシブ対応 --- */
@media (max-width: 480px) {
    body {
        padding: 0.5rem;
    }
    #app-container {
        padding: 0.75rem;
    }
    header {
        flex-direction: column;
        align-items: flex-start;
    }
    .header-actions {
        width: 100%;
        justify-content: space-around;
        margin-top: 0.75rem;
    }
    .button {
        padding: 0.4rem 0.6rem;
        font-size: 0.75em;
    }
    .icon-btn .material-symbols-outlined {
        font-size: 1em;
    }
    .member-item {
        flex-wrap: wrap;
        padding: 0.5rem 0.75rem;
    }
    .member-name, .checked-time-display {
        flex-basis: 100%;
        margin-left: 0;
    }
    .member-actions {
        width: 100%;
        justify-content: flex-end;
        margin-top: 0.4rem;
    }
    .time-input {
        width: 50px;
    }
    .modal-content {
        width: 98%;
        padding: 1rem;
    }
    .form-group input[type="text"], .form-group textarea, .form-group input[type="date"] {
        width: calc(100% - 12px);
        padding: 0.3rem 0.5rem;
    }
    #modal-members-radio {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    }
}