/* AI営業アシスタント スタイル */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
    color: #333;
}

/* ヘッダー */
.header {
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header h1 {
    margin: 0;
    font-size: 1.8rem;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logout-btn {
    background: rgba(255,255,255,0.2);
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    border: 1px solid rgba(255,255,255,0.3);
    transition: background-color 0.3s;
}

.logout-btn:hover {
    background: rgba(255,255,255,0.3);
}

/* チャットボックス */
#chat-box {
    max-width: 800px;
    margin: 2rem auto;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    height: 400px;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* メッセージスタイル */
.user {
    align-self: flex-end;
    background: #007bff;
    color: white;
    padding: 0.75rem 1rem;
    border-radius: 18px 18px 5px 18px;
    max-width: 70%;
    word-wrap: break-word;
    white-space: pre-wrap;
    line-height: 1.5;
    margin-bottom: 0.5rem;
}

.assistant {
    align-self: flex-start;
    background: #e9ecef;
    color: #333;
    padding: 0.75rem 1rem;
    border-radius: 18px 18px 18px 5px;
    max-width: 70%;
    word-wrap: break-word;
    white-space: pre-wrap;
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

/* フォーム */
#chat-form {
    max-width: 800px;
    margin: 1rem auto;
    display: flex;
    gap: 0.5rem;
    padding: 0 1rem;
}

#user-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid #ddd;
    border-radius: 25px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
    resize: none;
    font-family: inherit;
    overflow-y: hidden;
    min-height: 20px;
    max-height: 120px;
    line-height: 1.4;
}

#user-input:focus {
    border-color: #007bff;
}

button[type="submit"] {
    background: #007bff;
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s;
}

button[type="submit"]:hover {
    background: #0056b3;
}

/* レスポンシブデザイン */
@media (max-width: 768px) {
    .header {
        padding: 1rem;
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .user-info {
        font-size: 0.9rem;
    }
    
    #chat-box {
        margin: 1rem;
        height: 300px;
    }
    
    #chat-form {
        margin: 1rem;
        padding: 0;
    }
    
    .user, .assistant {
        max-width: 85%;
    }
}

/* ログインページ用スタイル */
.login-container {
    max-width: 400px;
    margin: 100px auto;
    padding: 40px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

.form-group label {
    margin-bottom: 5px;
    font-weight: bold;
    color: #495057;
}

.form-group input {
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: #007bff;
}

.login-btn {
    background: #007bff;
    color: white;
    padding: 12px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.login-btn:hover {
    background: #0056b3;
}

.error {
    color: #dc3545;
    padding: 10px;
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    border-radius: 5px;
    margin-bottom: 20px;
}

.test-accounts {
    margin-top: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 5px;
    border: 1px solid #dee2e6;
}

.test-accounts h3 {
    margin-top: 0;
    color: #495057;
    font-size: 1.1rem;
}

.test-account {
    margin: 10px 0;
    padding: 10px;
    background: white;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    border: 1px solid #e9ecef;
}