/* ベーススタイル */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* ヘッダー */
header {
    background: linear-gradient(135deg, #00bcd4 0%, #0097a7 100%);
    color: white;
    padding: 20px 30px;
    border-radius: 8px;
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

header h1 {
    font-size: 1.8rem;
    font-weight: 600;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-info span {
    font-size: 0.95rem;
}

/* ボタン */
.btn {
    padding: 10px 20px;
    border: 2px solid;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: #00bcd4;
    color: white;
    border-color: #00bcd4;
}

.btn-primary:hover {
    background-color: #00a5bb;
    border-color: #00a5bb;
}

.btn-secondary {
    background-color: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background-color: #5a6268;
}

.btn-danger {
    background-color: #dc3545;
    color: white;
    padding: 6px 12px;
    font-size: 0.85rem;
}

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

.btn-edit {
    background-color: #28a745;
    color: white;
    padding: 6px 12px;
    font-size: 0.85rem;
}

.btn-edit:hover {
    background-color: #218838;
}

/* セクション */
section {
    background: white;
    padding: 25px;
    margin-bottom: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

section h2 {
    font-size: 1.4rem;
    margin-bottom: 20px;
    color: #00bcd4;
    border-bottom: 2px solid #00bcd4;
    padding-bottom: 10px;
}

/* フォーム */
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    margin-bottom: 15px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 500;
    margin-bottom: 5px;
    color: #555;
}

.form-group input[type="text"],
.form-group input[type="date"],
.form-group input[type="password"],
.form-group textarea,
.form-group select {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 0.95rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #00bcd4;
    box-shadow: 0 0 0 3px rgba(0, 188, 212, 0.1);
}

.form-group textarea {
    resize: vertical;
    font-family: inherit;
}

.form-group input[type="file"] {
    padding: 8px;
    border: 1px dashed #ddd;
    border-radius: 5px;
    cursor: pointer;
}

.form-group small {
    color: #999;
    font-size: 0.85rem;
    margin-top: 5px;
}

.required {
    color: #dc3545;
}

/* 報告書一覧 */
#reportsList {
    display: grid;
    gap: 15px;
}

.report-card {
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 20px;
    background: #fafafa;
    transition: all 0.3s ease;
}

.report-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.report-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid #e0e0e0;
}

.report-id {
    font-size: 1.1rem;
    font-weight: 600;
    color: #00bcd4;
}

.report-date {
    color: #666;
    font-size: 0.9rem;
}

.report-actions {
    display: flex;
    gap: 10px;
}

.report-body {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.report-field {
    display: flex;
    flex-direction: column;
}

.report-field label {
    font-size: 0.85rem;
    color: #888;
    margin-bottom: 3px;
}

.report-field .value {
    font-size: 0.95rem;
    color: #333;
    font-weight: 500;
}

.report-file {
    margin-top: 10px;
}

.report-file a {
    color: #00bcd4;
    text-decoration: none;
    font-size: 0.9rem;
}

.report-file a:hover {
    text-decoration: underline;
}

/* モーダル */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 30px;
    border-radius: 8px;
    width: 90%;
    max-width: 800px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close:hover,
.close:focus {
    color: #000;
}

/* ログインページ */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #00bcd4 0%, #0097a7 100%);
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-box {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.login-box h1 {
    text-align: center;
    color: #00bcd4;
    margin-bottom: 10px;
    font-size: 1.8rem;
}

.login-box h2 {
    text-align: center;
    color: #666;
    margin-bottom: 30px;
    font-size: 1.2rem;
    font-weight: 400;
}

.login-box .form-group {
    margin-bottom: 20px;
}

.login-box button {
    width: 100%;
    padding: 12px;
    font-size: 1rem;
}

.error-message {
    background-color: #f8d7da;
    color: #721c24;
    padding: 12px;
    border-radius: 5px;
    margin-bottom: 15px;
    border: 1px solid #f5c6cb;
}

/* メッセージ表示 */
.success-message {
    background-color: #d4edda;
    color: #155724;
    padding: 12px;
    border-radius: 5px;
    margin-bottom: 15px;
    border: 1px solid #c3e6cb;
}

/* ローディング */
#loadingMessage {
    text-align: center;
    padding: 20px;
    color: #666;
    font-size: 1.1rem;
}

/* レスポンシブデザイン */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    header h1 {
        font-size: 1.4rem;
    }

    .user-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .report-header {
        flex-direction: column;
        gap: 10px;
    }

    .modal-content {
        width: 95%;
        margin: 10% auto;
        padding: 20px;
    }
}

/* 空の状態 */
.empty-state {
    text-align: center;
    padding: 40px;
    color: #999;
}

.empty-state svg {
    width: 80px;
    height: 80px;
    margin-bottom: 15px;
    opacity: 0.5;
}

/* 接続エラーバナー */
.connection-error-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #dc3545;
    color: white;
    padding: 12px 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    z-index: 10000;
    font-size: 0.95rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.connection-error-banner button {
    background: white;
    color: #dc3545;
    border: none;
    padding: 6px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: background 0.2s;
}

.connection-error-banner button:hover {
    background: #f8f9fa;
}

/* アイドルタイムアウト警告バナー */
.idle-warning-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #ff9800 0%, #f57c00 100%);
    color: white;
    padding: 12px 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    z-index: 10001;
    font-size: 0.95rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.idle-warning-banner button {
    background: white;
    color: #f57c00;
    border: none;
    padding: 8px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
}

.idle-warning-banner button:hover {
    background: #fff3e0;
    transform: scale(1.05);
}